diff --git a/vendor.yml b/vendor.yml new file mode 100644 index 0000000..1156bc3 --- /dev/null +++ b/vendor.yml @@ -0,0 +1,13 @@ +vendors: +- path: github.com/aymerick/raymond + rev: a2232af10b53ef1ae5a767f5178db3a6c1dab655 +- path: github.com/drone/drone-go + rev: eaa41f7836a191224ec5702d2458db07882ec269 +- path: github.com/golang/protobuf + rev: 0c1f6d65b5a189c2250d10e71a5506f06f9fa0a0 +- path: golang.org/x/net + rev: 3f122ce3dbbe488b7e6a8bdb26f41edec852a40b +- path: golang.org/x/oauth2 + rev: 65a8d08c6292395d47053be10b3c5e91960def76 +- path: google.golang.org/appengine + rev: 7f59a8c76b8594d06044bfe0bcbe475cb2020482 diff --git a/vendor/github.com/aymerick/raymond/BENCHMARKS.md b/vendor/github.com/aymerick/raymond/BENCHMARKS.md new file mode 100644 index 0000000..c3af56c --- /dev/null +++ b/vendor/github.com/aymerick/raymond/BENCHMARKS.md @@ -0,0 +1,46 @@ +# Benchmarks + +Hardware: MacBookPro11,1 - Intel Core i5 - 2,6 GHz - 8 Go RAM + +With: + + - handlebars.js #8cba84df119c317fcebc49fb285518542ca9c2d0 + - raymond #7bbaaf50ed03c96b56687d7fa6c6e04e02375a98 + + +## handlebars.js (ops/ms) + + arguments 198 ±4 (5) + array-each 568 ±23 (5) + array-mustache 522 ±18 (4) + complex 71 ±7 (3) + data 67 ±2 (3) + depth-1 47 ±2 (3) + depth-2 14 ±1 (2) + object-mustache 1099 ±47 (5) + object 907 ±58 (4) + partial-recursion 46 ±3 (4) + partial 68 ±3 (3) + paths 1650 ±50 (3) + string 2552 ±157 (3) + subexpression 141 ±2 (4) + variables 2671 ±83 (4) + + +## raymond + + BenchmarkArguments 200000 6642 ns/op 151 ops/ms + BenchmarkArrayEach 100000 19584 ns/op 51 ops/ms + BenchmarkArrayMustache 100000 17305 ns/op 58 ops/ms + BenchmarkComplex 30000 50270 ns/op 20 ops/ms + BenchmarkData 50000 25551 ns/op 39 ops/ms + BenchmarkDepth1 100000 20162 ns/op 50 ops/ms + BenchmarkDepth2 30000 47782 ns/op 21 ops/ms + BenchmarkObjectMustache 200000 7668 ns/op 130 ops/ms + BenchmarkObject 200000 8843 ns/op 113 ops/ms + BenchmarkPartialRecursion 50000 23139 ns/op 43 ops/ms + BenchmarkPartial 50000 31015 ns/op 32 ops/ms + BenchmarkPath 200000 8997 ns/op 111 ops/ms + BenchmarkString 1000000 1879 ns/op 532 ops/ms + BenchmarkSubExpression 300000 4935 ns/op 203 ops/ms + BenchmarkVariables 200000 6478 ns/op 154 ops/ms diff --git a/vendor/github.com/aymerick/raymond/CHANGELOG.md b/vendor/github.com/aymerick/raymond/CHANGELOG.md new file mode 100644 index 0000000..c438a5c --- /dev/null +++ b/vendor/github.com/aymerick/raymond/CHANGELOG.md @@ -0,0 +1,33 @@ +# Raymond Changelog + +### Raymond 2.0.1 _(June 01, 2016)_ + +- [BUGFIX] Removes data races [#3](https://github.com/aymerick/raymond/issues/3) - Thanks [@markbates](https://github.com/markbates) + +### Raymond 2.0.0 _(May 01, 2016)_ + +- [BUGFIX] Fixes passing of context in helper options [#2](https://github.com/aymerick/raymond/issues/2) - Thanks [@GhostRussia](https://github.com/GhostRussia) +- [BREAKING] Renames and unexports constants: + + - `handlebars.DUMP_TPL` + - `lexer.ESCAPED_ESCAPED_OPEN_MUSTACHE` + - `lexer.ESCAPED_OPEN_MUSTACHE` + - `lexer.OPEN_MUSTACHE` + - `lexer.CLOSE_MUSTACHE` + - `lexer.CLOSE_STRIP_MUSTACHE` + - `lexer.CLOSE_UNESCAPED_STRIP_MUSTACHE` + - `lexer.DUMP_TOKEN_POS` + - `lexer.DUMP_ALL_TOKENS_VAL` + + +### Raymond 1.1.0 _(June 15, 2015)_ + +- Permits templates references with lowercase versions of struct fields. +- Adds `ParseFile()` function. +- Adds `RegisterPartialFile()`, `RegisterPartialFiles()` and `Clone()` methods on `Template`. +- Helpers can now be struct methods. +- Ensures safe concurrent access to helpers and partials. + +### Raymond 1.0.0 _(June 09, 2015)_ + +- This is the first release. Raymond supports almost all handlebars features. See https://github.com/aymerick/raymond#limitations for a list of differences with the javascript implementation. diff --git a/vendor/github.com/aymerick/raymond/LICENSE b/vendor/github.com/aymerick/raymond/LICENSE new file mode 100644 index 0000000..6ce87cd --- /dev/null +++ b/vendor/github.com/aymerick/raymond/LICENSE @@ -0,0 +1,22 @@ +The MIT License (MIT) + +Copyright (c) 2015 Aymerick JEHANNE + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. + diff --git a/vendor/github.com/aymerick/raymond/README.md b/vendor/github.com/aymerick/raymond/README.md new file mode 100644 index 0000000..0721bcc --- /dev/null +++ b/vendor/github.com/aymerick/raymond/README.md @@ -0,0 +1,1382 @@ +# raymond [![Build Status](https://secure.travis-ci.org/aymerick/raymond.svg?branch=master)](http://travis-ci.org/aymerick/raymond) [![GoDoc](https://godoc.org/github.com/aymerick/raymond?status.svg)](http://godoc.org/github.com/aymerick/raymond) + +Handlebars for [golang](https://golang.org) with the same features as [handlebars.js](http://handlebarsjs.com) `3.0`. + +The full API documentation is available here: . + +![Raymond Logo](https://github.com/aymerick/raymond/blob/master/raymond.png?raw=true "Raymond") + + +# Table of Contents + +- [Quick Start](#quick-start) +- [Correct Usage](#correct-usage) +- [Context](#context) +- [HTML Escaping](#html-escaping) +- [Helpers](#helpers) + - [Template Helpers](#template-helpers) + - [Built-In Helpers](#built-in-helpers) + - [The `if` block helper](#the-if-block-helper) + - [The `unless` block helper](#the-unless-block-helper) + - [The `each` block helper](#the-each-block-helper) + - [The `with` block helper](#the-with-block-helper) + - [The `lookup` helper](#the-lookup-helper) + - [The `log` helper](#the-log-helper) + - [Block Helpers](#block-helpers) + - [Block Evaluation](#block-evaluation) + - [Conditional](#conditional) + - [Else Block Evaluation](#else-block-evaluation) + - [Block Parameters](#block-parameters) + - [Helper Parameters](#helper-parameters) + - [Automatic conversion](#automatic-conversion) + - [Options Argument](#options-argument) + - [Context Values](#context-values) + - [Helper Hash Arguments](#helper-hash-arguments) + - [Private Data](#private-data) + - [Utilites](#utilites) + - [`Str()`](#str) + - [`IsTrue()`](#istrue) +- [Context Functions](#context-functions) +- [Partials](#partials) + - [Template Partials](#template-partials) + - [Global Partials](#global-partials) + - [Dynamic Partials](#dynamic-partials) + - [Partial Contexts](#partial-contexts) + - [Partial Parameters](#partial-parameters) +- [Utility Functions](#utility-functions) +- [Mustache](#mustache) +- [Limitations](#limitations) +- [Handlebars Lexer](#handlebars-lexer) +- [Handlebars Parser](#handlebars-parser) +- [Test](#test) +- [References](#references) +- [Others Implementations](#others-implementations) + + +## Quick Start + + $ go get github.com/aymerick/raymond + +The quick and dirty way of rendering a handlebars template: + +```go +package main + +import ( + "fmt" + + "github.com/aymerick/raymond" +) + +func main() { + tpl := `
+

{{title}}

+
+ {{body}} +
+
+` + + ctx := map[string]string{ + "title": "My New Post", + "body": "This is my first post!", + } + + result, err := raymond.Render(tpl, ctx) + if err != nil { + panic("Please fill a bug :)") + } + + fmt.Print(result) +} +``` + +Displays: + +```html +
+

My New Post

+
+ This is my first post! +
+
+``` + +Please note that the template will be parsed everytime you call `Render()` function. So you probably want to read the next section. + + +## Correct Usage + +To avoid parsing a template several times, use the `Parse()` and `Exec()` functions: + +```go +package main + +import ( + "fmt" + + "github.com/aymerick/raymond" +) + +func main() { + source := `
+

{{title}}

+
+ {{body}} +
+
+` + + ctxList := []map[string]string{ + { + "title": "My New Post", + "body": "This is my first post!", + }, + { + "title": "Here is another post", + "body": "This is my second post!", + }, + } + + // parse template + tpl, err := raymond.Parse(source) + if err != nil { + panic(err) + } + + for _, ctx := range ctxList { + // render template + result, err := tpl.Exec(ctx) + if err != nil { + panic(err) + } + + fmt.Print(result) + } +} + +``` + +Displays: + +```html +
+

My New Post

+
+ This is my first post! +
+
+
+

Here is another post

+
+ This is my second post! +
+
+``` + +You can use `MustParse()` and `MustExec()` functions if you don't want to deal with errors: + +```go +// parse template +tpl := raymond.MustParse(source) + +// render template +result := tpl.MustExec(ctx) +``` + + +## Context + +The rendering context can contain any type of values, including `array`, `slice`, `map`, `struct` and `func`. + +When using structs, be warned that only exported fields are accessible. However you can access exported fields in template with their lowercase names. + +For example, both `{{author.firstName}}` and `{{Author.FirstName}}` references give the same result, as long as `Author` and `FirstName` are exported struct fields. + +```go +package main + +import ( + "fmt" + + "github.com/aymerick/raymond" +) + +func main() { + source := `
+

By {{author.firstName}} {{author.lastName}}

+
{{body}}
+ +

Comments

+ + {{#each comments}} +

By {{author.firstName}} {{author.lastName}}

+
{{body}}
+ {{/each}} +
` + + type Post struct { + Author Person + Body string + Comments []Comment + } + + type Person struct { + FirstName string + LastName string + } + + type Comment struct { + Author Person + Body string + } + + ctx := Post{ + Person{"Jean", "Valjean"}, + "Life is difficult", + []Comment{ + Comment{ + Person{"Marcel", "Beliveau"}, + "LOL!", + }, + }, + } + + output := raymond.MustRender(source, ctx) + + fmt.Print(output) +} +``` + +Output: + +```html +
+

By Jean Valjean

+
Life is difficult
+ +

Comments

+ +

By Marcel Beliveau

+
LOL!
+
+``` + + +## HTML Escaping + +By default, the result of a mustache expression is HTML escaped. Use the triple mustache `{{{` to output unescaped values. + +```go +source := `
+

{{title}}

+
+ {{{body}}} +
+
+` + +ctx := map[string]string{ + "title": "All about

Tags", + "body": "

This is a post about <p> tags

", +} + +tpl := raymond.MustParse(source) +result := tpl.MustExec(ctx) + +fmt.Print(result) +``` + +Output: + +```html +
+

All about <p> Tags

+
+

This is a post about <p> tags

+
+
+``` + +When returning HTML from a helper, you should return a `SafeString` if you don't want it to be escaped by default. When using `SafeString` all unknown or unsafe data should be manually escaped with the `Escape` method. + +```go +raymond.RegisterHelper("link", func(url, text string) raymond.SafeString { + return raymond.SafeString("" + raymond.Escape(text) + "") +}) + +tpl := raymond.MustParse("{{link url text}}") + +ctx := map[string]string{ + "url": "http://www.aymerick.com/", + "text": "This is a cool website", +} + +result := tpl.MustExec(ctx) +fmt.Print(result) +``` + +Output: + +```html +This is a <em>cool</em> website +``` + + +## Helpers + +Helpers can be accessed from any context in a template. You can register a helper with the `RegisterHelper` function. + +For example: + +```html +
+

By {{fullName author}}

+
{{body}}
+ +

Comments

+ + {{#each comments}} +

By {{fullName author}}

+
{{body}}
+ {{/each}} +
+``` + +With this context and helper: + +```go +ctx := map[string]interface{}{ + "author": map[string]string{"firstName": "Jean", "lastName": "Valjean"}, + "body": "Life is difficult", + "comments": []map[string]interface{}{{ + "author": map[string]string{"firstName": "Marcel", "lastName": "Beliveau"}, + "body": "LOL!", + }}, +} + +raymond.RegisterHelper("fullName", func(person map[string]string) string { + return person["firstName"] + " " + person["lastName"] +}) +``` + +Outputs: + +```html +
+

By Jean Valjean

+
Life is difficult
+ +

Comments

+ +

By Marcel Beliveau

+
LOL!
+
+``` + +Helper arguments can be any type. + +The following example uses structs instead of maps and produces the same output as the previous one: + +```html +
+

By {{fullName author}}

+
{{body}}
+ +

Comments

+ + {{#each comments}} +

By {{fullName author}}

+
{{body}}
+ {{/each}} +
+``` + +With this context and helper: + +```go +type Post struct { + Author Person + Body string + Comments []Comment +} + +type Person struct { + FirstName string + LastName string +} + +type Comment struct { + Author Person + Body string +} + +ctx := Post{ + Person{"Jean", "Valjean"}, + "Life is difficult", + []Comment{ + Comment{ + Person{"Marcel", "Beliveau"}, + "LOL!", + }, + }, +} + +RegisterHelper("fullName", func(person Person) string { + return person.FirstName + " " + person.LastName +}) +``` + + +### Template Helpers + +You can register a helper on a specific template, and in that case that helper will be available to that template only: + +```go +tpl := raymond.MustParse("User: {{fullName user.firstName user.lastName}}") + +tpl.RegisterHelper("fullName", func(firstName, lastName string) string { + return firstName + " " + lastName +}) +``` + + +### Built-In Helpers + +Those built-in helpers are available to all templates. + + +#### The `if` block helper + +You can use the `if` helper to conditionally render a block. If its argument returns `false`, `nil`, `0`, `""`, an empty array, an empty slice or an empty map, then raymond will not render the block. + +```html +
+ {{#if author}} +

{{firstName}} {{lastName}}

+ {{/if}} +
+``` + +When using a block expression, you can specify a template section to run if the expression returns a falsy value. That section, marked by `{{else}}` is called an "else section". + +```html +
+ {{#if author}} +

{{firstName}} {{lastName}}

+ {{else}} +

Unknown Author

+ {{/if}} +
+``` + +You can chain several blocks. For example that template: + +```html +{{#if isActive}} + Active +{{else if isInactive}} + Inactive +{{else}} + Unknown +{{/if}} +``` + +With that context: + +```go +ctx := map[string]interface{}{ + "isActive": false, + "isInactive": false, +} +``` + +Outputs: + +```html + Unknown +``` + + +#### The `unless` block helper + +You can use the `unless` helper as the inverse of the `if` helper. Its block will be rendered if the expression returns a falsy value. + +```html +
+ {{#unless license}} +

WARNING: This entry does not have a license!

+ {{/unless}} +
+``` + + +#### The `each` block helper + +You can iterate over an array, a slice, a map or a struct instance using this built-in `each` helper. Inside the block, you can use `this` to reference the element being iterated over. + +For example: + +```html + +``` + +With this context: + +```go +map[string]interface{}{ + "people": []string{ + "Marcel", "Jean-Claude", "Yvette", + }, +} +``` + +Outputs: + +```html + +``` + +You can optionally provide an `{{else}}` section which will display only when the passed argument is an empty array, an empty slice or an empty map (a `struct` instance is never considered empty). + +```html +{{#each paragraphs}} +

{{this}}

+{{else}} +

No content

+{{/each}} +``` + +When looping through items in `each`, you can optionally reference the current loop index via `{{@index}}`. + +```html +{{#each array}} + {{@index}}: {{this}} +{{/each}} +``` + +Additionally for map and struct instance iteration, `{{@key}}` references the current map key or struct field name: + +```html +{{#each map}} + {{@key}}: {{this}} +{{/each}} +``` + +The first and last steps of iteration are noted via the `@first` and `@last` variables. + + +#### The `with` block helper + +You can shift the context for a section of a template by using the built-in `with` block helper. + +```html +
+

{{title}}

+ + {{#with author}} +

By {{firstName}} {{lastName}}

+ {{/with}} +
+``` + +With this context: + +```go +map[string]interface{}{ + "title": "My first post!", + "author": map[string]string{ + "firstName": "Jean", + "lastName": "Valjean", + }, +} +``` + +Outputs: + +```html +
+

My first post!

+ +

By Jean Valjean

+
+``` + +You can optionally provide an `{{else}}` section which will display only when the passed argument is falsy. + +```html +{{#with author}} +

{{name}}

+{{else}} +

No content

+{{/with}} +``` + + +#### The `lookup` helper + +The `lookup` helper allows for dynamic parameter resolution using handlebars variables. + +```html +{{#each bar}} + {{lookup ../foo @index}} +{{/each}} +``` + + +#### The `log` helper + +The `log` helper allows for logging while rendering a template. + +```html +{{log "Look at me!"}} +``` + +Note that the handlebars.js `@level` variable is not supported. + + +### Block Helpers + +Block helpers make it possible to define custom iterators and other functionality that can invoke the passed block with a new context. + + +#### Block Evaluation + +As an example, let's define a block helper that adds some markup to the wrapped text. + +```html +
+

{{title}}

+
+ {{#bold}}{{body}}{{/bold}} +
+
+``` + +The `bold` helper will add markup to make its text bold. + +```go +raymond.RegisterHelper("bold", func(options *raymond.Options) raymond.SafeString { + return raymond.SafeString(`
` + options.Fn() + "
") +}) +``` + +A helper evaluates the block content with current context by calling `options.Fn()`. + +If you want to evaluate the block with another context, then use `options.FnWith(ctx)`, like this french version of built-in `with` block helper: + +```go +raymond.RegisterHelper("avec", func(context interface{}, options *raymond.Options) string { + return options.FnWith(context) +}) +``` + +With that template: + +```html +{{#avec obj.text}}{{this}}{{/avec}} +``` + + +#### Conditional + +Let's write a french version of `if` block helper: + +```go +source := `{{#si yep}}YEP !{{/si}}` + +ctx := map[string]interface{}{"yep": true} + +raymond.RegisterHelper("si", func(conditional bool, options *raymond.Options) string { + if conditional { + return options.Fn() + } + return "" +}) +``` + +Note that as the first parameter of the helper is typed as `bool` an automatic conversion is made if corresponding context value is not a boolean. So this helper works with that context too: + +```go +ctx := map[string]interface{}{"yep": "message"} +``` + +Here, `"message"` is converted to `true` because it is an non-empty string. See `IsTrue()` function for more informations on boolean conversion. + + +#### Else Block Evaluation + +We can enhance the `si` block helper to evaluate the `else block` by calling `options.Inverse()` if conditional is false: + +```go +source := `{{#si yep}}YEP !{{else}}NOP !{{/si}}` + +ctx := map[string]interface{}{"yep": false} + +raymond.RegisterHelper("si", func(conditional bool, options *raymond.Options) string { + if conditional { + return options.Fn() + } + return options.Inverse() +}) +``` + +Outputs: +``` +NOP ! +``` + + +#### Block Parameters + +It's possible to receive named parameters from supporting helpers. + +```html +{{#each users as |user userId|}} + Id: {{userId}} Name: {{user.name}} +{{/each}} +``` + +In this particular example, `user` will have the same value as the current context and `userId` will have the index/key value for the iteration. + +This allows for nested helpers to avoid name conflicts. + +For example: + +```html +{{#each users as |user userId|}} + {{#each user.books as |book bookId|}} + User: {{userId}} Book: {{bookId}} + {{/each}} +{{/each}} +``` + +With this context: + +```go +ctx := map[string]interface{}{ + "users": map[string]interface{}{ + "marcel": map[string]interface{}{ + "books": map[string]interface{}{ + "book1": "My first book", + "book2": "My second book", + }, + }, + "didier": map[string]interface{}{ + "books": map[string]interface{}{ + "bookA": "Good book", + "bookB": "Bad book", + }, + }, + }, +} +``` + +Outputs: + +```html + User: marcel Book: book1 + User: marcel Book: book2 + User: didier Book: bookA + User: didier Book: bookB +``` + +As you can see, the second block parameter is the map key. When using structs, it is the struct field name. + +When using arrays and slices, the second parameter is element index: + +```go +ctx := map[string]interface{}{ + "users": []map[string]interface{}{ + { + "id": "marcel", + "books": []map[string]interface{}{ + {"id": "book1", "title": "My first book"}, + {"id": "book2", "title": "My second book"}, + }, + }, + { + "id": "didier", + "books": []map[string]interface{}{ + {"id": "bookA", "title": "Good book"}, + {"id": "bookB", "title": "Bad book"}, + }, + }, + }, +} +``` + +Outputs: + +```html + User: 0 Book: 0 + User: 0 Book: 1 + User: 1 Book: 0 + User: 1 Book: 1 +``` + + +### Helper Parameters + +When calling a helper in a template, raymond expects the same number of arguments as the number of helper function parameters. + +So this template: + +```html +{{add a}} +``` + +With this helper: + +```go +raymond.RegisterHelper("add", func(val1, val2 int) string { + return strconv.Itoa(val1 + val2) +}) +``` + +Will simply panics, because we call the helper with one argument whereas it expects two. + + +#### Automatic conversion + +Let's create a `concat` helper that expects two strings and concat them: + +```go +source := `{{concat a b}}` + +ctx := map[string]interface{}{ + "a": "Jean", + "b": "Valjean", +} + +raymond.RegisterHelper("concat", func(val1, val2 string) string { + return val1 + " " + val2 +}) +``` + +Everything goes well, two strings are passed as arguments to the helper that outputs: + +```html +Jean VALJEAN +``` + +But what happens if there is another type than `string` in the context ? For example: + +```go +ctx := map[string]interface{}{ + "a": 10, + "b": "Valjean", +} +``` + +Actually, raymond perfoms automatic string conversion. So because the first parameter of the helper is typed as `string`, the first argument will be converted from the `10` integer to `"10"`, and the helper outputs: + +```html +10 VALJEAN +``` + +Note that this kind of automatic conversion is done with `bool` type too, thanks to the `IsTrue()` function. + + +### Options Argument + +If a helper needs the `Options` argument, just add it at the end of helper parameters: + +```go +raymond.RegisterHelper("add", func(val1, val2 int, options *raymond.Options) string { + return strconv.Itoa(val1 + val2) + " " + options.ValueStr("bananas") +}) +``` + +Thanks to the `options` argument, helpers have access to the current evaluation context, to the `Hash` arguments, and they can manipulate the private data variables. + +The `Options` argument is even necessary for Block Helpers to evaluate block and "else block". + + +#### Context Values + +Helpers fetch current context values with `options.Value()` and `options.ValuesStr()`. + +`Value()` returns an `interface{}` and lets the helper do the type assertions whereas `ValueStr()` automatically converts the value to a `string`. + +For example: + +```go +source := `{{concat a b}}` + +ctx := map[string]interface{}{ + "a": "Marcel", + "b": "Beliveau", + "suffix": "FOREVER !", +} + +raymond.RegisterHelper("concat", func(val1, val2 string, options *raymond.Options) string { + return val1 + " " + val2 + " " + options.ValueStr("suffix") +}) +``` + +Outputs: + +```html +Marcel Beliveau FOREVER ! +``` + +Helpers can get the entire current context with `options.Ctx()` that returns an `interface{}`. + + +#### Helper Hash Arguments + +Helpers access hash arguments with `options.HashProp()` and `options.HashStr()`. + +`HashProp()` returns an `interface{}` and lets the helper do the type assertions whereas `HashStr()` automatically converts the value to a `string`. + +For example: + +```go +source := `{{concat suffix first=a second=b}}` + +ctx := map[string]interface{}{ + "a": "Marcel", + "b": "Beliveau", + "suffix": "FOREVER !", +} + +raymond.RegisterHelper("concat", func(suffix string, options *raymond.Options) string { + return options.HashStr("first") + " " + options.HashStr("second") + " " + suffix +}) +``` + +Outputs: + +```html +Marcel Beliveau FOREVER ! +``` + +Helpers can get the full hash with `options.Hash()` that returns a `map[string]interface{}`. + + +#### Private Data + +Helpers access private data variables with `options.Data()` and `options.DataStr()`. + +`Data()` returns an `interface{}` and lets the helper do the type assertions whereas `DataStr()` automatically converts the value to a `string`. + +Helpers can get the entire current data frame with `options.DataFrame()` that returns a `*DataFrame`. + +For helpers that need to inject their own private data frame, use `options.NewDataFrame()` to create the frame and `options.FnData()` to evaluate the block with that frame. + +For example: + +```go +source := `{{#voodoo kind=a}}Voodoo is {{@magix}}{{/voodoo}}` + +ctx := map[string]interface{}{ + "a": "awesome", +} + +raymond.RegisterHelper("voodoo", func(options *raymond.Options) string { + // create data frame with @magix data + frame := options.NewDataFrame() + frame.Set("magix", options.HashProp("kind")) + + // evaluates block with new data frame + return options.FnData(frame) +}) +``` + +Helpers that need to evaluate the block with a private data frame and a new context can call `options.FnCtxData()`. + + +### Utilites + +In addition to `Escape()`, raymond provides utility functions that can be usefull for helpers. + + +#### `Str()` + +`Str()` converts its parameter to a `string`. + +Booleans: + +```go +raymond.Str(3) + " foos and " + raymond.Str(-1.25) + " bars" +// Outputs: "3 foos and -1.25 bars" +``` + +Numbers: + +``` go +"everything is " + raymond.Str(true) + " and nothing is " + raymond.Str(false) +// Outputs: "everything is true and nothing is false" +``` + +Maps: + +```go +raymond.Str(map[string]string{"foo": "bar"}) +// Outputs: "map[foo:bar]" +``` + +Arrays and Slices: + +```go +raymond.Str([]interface{}{true, 10, "foo", 5, "bar"}) +// Outputs: "true10foo5bar" +``` + + +#### `IsTrue()` + +`IsTrue()` returns the truthy version of its parameter. + +It returns `false` when parameter is either: + + - an empty array + - an empty slice + - an empty map + - `""` + - `nil` + - `0` + - `false` + +For all others values, `IsTrue()` returns `true`. + + +## Context Functions + +In addition to helpers, lambdas found in context are evaluated. + +For example, that template and context: + +```go +source := "I {{feeling}} you" + +ctx := map[string]interface{}{ + "feeling": func() string { + rand.Seed(time.Now().UTC().UnixNano()) + + feelings := []string{"hate", "love"} + return feelings[rand.Intn(len(feelings))] + }, +} +``` + +Randomly renders `I hate you` or `I love you`. + +Those context functions behave like helper functions: they can be called with parameters and they can have an `Options` argument. + + +## Partials + +### Template Partials + +You can register template partials before execution: + +```go +tpl := raymond.MustParse("{{> foo}} baz") +tpl.RegisterPartial("foo", "bar") + +result := tpl.MustExec(nil) +fmt.Print(result) +``` + +Output: + +```html +bar baz +``` + +You can register several partials at once: + +```go +tpl := raymond.MustParse("{{> foo}} and {{> baz}}") +tpl.RegisterPartials(map[string]string{ + "foo": "bar", + "baz": "bat", +}) + +result := tpl.MustExec(nil) +fmt.Print(result) +``` + +Output: + +```html +bar and bat +``` + + +### Global Partials + +You can registers global partials that will be accessible by all templates: + +```go +raymond.RegisterPartial("foo", "bar") + +tpl := raymond.MustParse("{{> foo}} baz") +result := tpl.MustExec(nil) +fmt.Print(result) +``` + +Or: + +```go +raymond.RegisterPartials(map[string]string{ + "foo": "bar", + "baz": "bat", +}) + +tpl := raymond.MustParse("{{> foo}} and {{> baz}}") +result := tpl.MustExec(nil) +fmt.Print(result) +``` + + +### Dynamic Partials + +It's possible to dynamically select the partial to be executed by using sub expression syntax. + +For example, that template randomly evaluates the `foo` or `baz` partial: + +```go +tpl := raymond.MustParse("{{> (whichPartial) }}") +tpl.RegisterPartials(map[string]string{ + "foo": "bar", + "baz": "bat", +}) + +ctx := map[string]interface{}{ + "whichPartial": func() string { + rand.Seed(time.Now().UTC().UnixNano()) + + names := []string{"foo", "baz"} + return names[rand.Intn(len(names))] + }, +} + +result := tpl.MustExec(ctx) +fmt.Print(result) +``` + + +### Partial Contexts + +It's possible to execute partials on a custom context by passing in the context to the partial call. + +For example: + +```go +tpl := raymond.MustParse("User: {{> userDetails user }}") +tpl.RegisterPartial("userDetails", "{{firstname}} {{lastname}}") + +ctx := map[string]interface{}{ + "user": map[string]string{ + "firstname": "Jean", + "lastname": "Valjean", + }, +} + +result := tpl.MustExec(ctx) +fmt.Print(result) +``` + +Displays: + +```html +User: Jean Valjean +``` + + +### Partial Parameters + +Custom data can be passed to partials through hash parameters. + +For example: + +```go +tpl := raymond.MustParse("{{> myPartial name=hero }}") +tpl.RegisterPartial("myPartial", "My hero is {{name}}") + +ctx := map[string]interface{}{ + "hero": "Goldorak", +} + +result := tpl.MustExec(ctx) +fmt.Print(result) +``` + +Displays: + +```html +My hero is Goldorak +``` + + +## Utility Functions + +You can use following utility fuctions to parse and register partials from files: + +- `ParseFile()` - reads a file and return parsed template +- `Template.RegisterPartialFile()` - reads a file and registers its content as a partial with given name +- `Template.RegisterPartialFiles()` - reads several files and registers them as partials, the filename base is used as the partial name + + +## Mustache + +Handlebars is a superset of [mustache](https://mustache.github.io) but it differs on those points: + +- Alternative delimiters are not supported +- There is no recursive lookup + + +## Limitations + +These handlebars options are currently NOT implemented: + +- `compat` - enables recursive field lookup +- `knownHelpers` - list of helpers that are known to exist (truthy) at template execution time +- `knownHelpersOnly` - allows further optimizations based on the known helpers list +- `trackIds` - include the id names used to resolve parameters for helpers +- `noEscape` - disables HTML escaping globally +- `strict` - templates will throw rather than silently ignore missing fields +- `assumeObjects` - removes object existence checks when traversing paths +- `preventIndent` - disables the auto-indententation of nested partials +- `stringParams` - resolves a parameter to it's name if the value isn't present in the context stack + +These handlebars features are currently NOT implemented: + +- raw block content is not passed as a parameter to helper +- `blockHelperMissing` - helper called when a helper can not be directly resolved +- `helperMissing` - helper called when a potential helper expression was not found +- `@contextPath` - value set in `trackIds` mode that records the lookup path for the current context +- `@level` - log level + + +## Handlebars Lexer + +You should not use the lexer directly, but for your information here is an example: + +```go +package main + +import ( + "fmt" + + "github.com/aymerick/raymond/lexer" +) + +func main() { + source := "You know {{nothing}} John Snow" + + output := "" + + lex := lexer.Scan(source) + for { + // consume next token + token := lex.NextToken() + + output += fmt.Sprintf(" %s", token) + + // stops when all tokens have been consumed, or on error + if token.Kind == lexer.TokenEOF || token.Kind == lexer.TokenError { + break + } + } + + fmt.Print(output) +} +``` + +Outputs: + +``` +Content{"You know "} Open{"{{"} ID{"nothing"} Close{"}}"} Content{" John Snow"} EOF +``` + + +## Handlebars Parser + +You should not use the parser directly, but for your information here is an example: + +```go +package main + +import ( + "fmt" + + "github.com/aymerick/raymond/ast" + "github.com/aymerick/raymond/parser" +) + +fu nc main() { + source := "You know {{nothing}} John Snow" + + // parse template + program, err := parser.Parse(source) + if err != nil { + panic(err) + } + + // print AST + output := ast.Print(program) + + fmt.Print(output) +} +``` + +Outputs: + +``` +CONTENT[ 'You know ' ] +{{ PATH:nothing [] }} +CONTENT[ ' John Snow' ] +``` + + +## Test + +First, fetch mustache tests: + + $ git submodule update --init + +To run all tests: + + $ go test ./... + +To filter tests: + + $ go test -run="Partials" + +To run all test and all benchmarks: + + $ go test -bench . ./... + +To test with race detection: + + $ go test -race ./... + + +## References + + - + - + - + - + + +## Others Implementations + +- [handlebars.js](http://handlebarsjs.com) - javascript +- [handlebars.java](https://github.com/jknack/handlebars.java) - java +- [handlebars.rb](https://github.com/cowboyd/handlebars.rb) - ruby +- [handlebars.php](https://github.com/XaminProject/handlebars.php) - php +- [handlebars-objc](https://github.com/Bertrand/handlebars-objc) - Objective C +- [rumblebars](https://github.com/nicolas-cherel/rumblebars) - rust diff --git a/vendor/github.com/aymerick/raymond/VERSION b/vendor/github.com/aymerick/raymond/VERSION new file mode 100644 index 0000000..38f77a6 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/VERSION @@ -0,0 +1 @@ +2.0.1 diff --git a/vendor/github.com/aymerick/raymond/ast/node.go b/vendor/github.com/aymerick/raymond/ast/node.go new file mode 100644 index 0000000..aaef066 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/ast/node.go @@ -0,0 +1,785 @@ +// Package ast provides structures to represent a handlebars Abstract Syntax Tree, and a Visitor interface to visit that tree. +package ast + +import ( + "fmt" + "strconv" +) + +// References: +// - https://github.com/wycats/handlebars.js/blob/master/lib/handlebars/compiler/ast.js +// - https://github.com/wycats/handlebars.js/blob/master/docs/compiler-api.md +// - https://github.com/golang/go/blob/master/src/text/template/parse/node.go + +// Node is an element in the AST. +type Node interface { + // node type + Type() NodeType + + // location of node in original input string + Location() Loc + + // string representation, used for debugging + String() string + + // accepts visitor + Accept(Visitor) interface{} +} + +// Visitor is the interface to visit an AST. +type Visitor interface { + VisitProgram(*Program) interface{} + + // statements + VisitMustache(*MustacheStatement) interface{} + VisitBlock(*BlockStatement) interface{} + VisitPartial(*PartialStatement) interface{} + VisitContent(*ContentStatement) interface{} + VisitComment(*CommentStatement) interface{} + + // expressions + VisitExpression(*Expression) interface{} + VisitSubExpression(*SubExpression) interface{} + VisitPath(*PathExpression) interface{} + + // literals + VisitString(*StringLiteral) interface{} + VisitBoolean(*BooleanLiteral) interface{} + VisitNumber(*NumberLiteral) interface{} + + // miscellaneous + VisitHash(*Hash) interface{} + VisitHashPair(*HashPair) interface{} +} + +// NodeType represents an AST Node type. +type NodeType int + +// Type returns itself, and permits struct includers to satisfy that part of Node interface. +func (t NodeType) Type() NodeType { + return t +} + +const ( + // NodeProgram is the program node + NodeProgram NodeType = iota + + // NodeMustache is the mustache statement node + NodeMustache + + // NodeBlock is the block statement node + NodeBlock + + // NodePartial is the partial statement node + NodePartial + + // NodeContent is the content statement node + NodeContent + + // NodeComment is the comment statement node + NodeComment + + // NodeExpression is the expression node + NodeExpression + + // NodeSubExpression is the subexpression node + NodeSubExpression + + // NodePath is the expression path node + NodePath + + // NodeBoolean is the literal boolean node + NodeBoolean + + // NodeNumber is the literal number node + NodeNumber + + // NodeString is the literal string node + NodeString + + // NodeHash is the hash node + NodeHash + + // NodeHashPair is the hash pair node + NodeHashPair +) + +// Loc represents the position of a parsed node in source file. +type Loc struct { + Pos int // Byte position + Line int // Line number +} + +// Location returns itself, and permits struct includers to satisfy that part of Node interface. +func (l Loc) Location() Loc { + return l +} + +// Strip describes node whitespace management. +type Strip struct { + Open bool + Close bool + + OpenStandalone bool + CloseStandalone bool + InlineStandalone bool +} + +// NewStrip instanciates a Strip for given open and close mustaches. +func NewStrip(openStr, closeStr string) *Strip { + return &Strip{ + Open: (len(openStr) > 2) && openStr[2] == '~', + Close: (len(closeStr) > 2) && closeStr[len(closeStr)-3] == '~', + } +} + +// NewStripForStr instanciates a Strip for given tag. +func NewStripForStr(str string) *Strip { + return &Strip{ + Open: (len(str) > 2) && str[2] == '~', + Close: (len(str) > 2) && str[len(str)-3] == '~', + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (s *Strip) String() string { + return fmt.Sprintf("Open: %t, Close: %t, OpenStandalone: %t, CloseStandalone: %t, InlineStandalone: %t", s.Open, s.Close, s.OpenStandalone, s.CloseStandalone, s.InlineStandalone) +} + +// +// Program +// + +// Program represents a program node. +type Program struct { + NodeType + Loc + + Body []Node // [ Statement ... ] + BlockParams []string + Chained bool + + // whitespace management + Strip *Strip +} + +// NewProgram instanciates a new program node. +func NewProgram(pos int, line int) *Program { + return &Program{ + NodeType: NodeProgram, + Loc: Loc{pos, line}, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *Program) String() string { + return fmt.Sprintf("Program{Pos: %d}", node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *Program) Accept(visitor Visitor) interface{} { + return visitor.VisitProgram(node) +} + +// AddStatement adds given statement to program. +func (node *Program) AddStatement(statement Node) { + node.Body = append(node.Body, statement) +} + +// +// Mustache Statement +// + +// MustacheStatement represents a mustache node. +type MustacheStatement struct { + NodeType + Loc + + Unescaped bool + Expression *Expression + + // whitespace management + Strip *Strip +} + +// NewMustacheStatement instanciates a new mustache node. +func NewMustacheStatement(pos int, line int, unescaped bool) *MustacheStatement { + return &MustacheStatement{ + NodeType: NodeMustache, + Loc: Loc{pos, line}, + Unescaped: unescaped, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *MustacheStatement) String() string { + return fmt.Sprintf("Mustache{Pos: %d}", node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *MustacheStatement) Accept(visitor Visitor) interface{} { + return visitor.VisitMustache(node) +} + +// +// Block Statement +// + +// BlockStatement represents a block node. +type BlockStatement struct { + NodeType + Loc + + Expression *Expression + + Program *Program + Inverse *Program + + // whitespace management + OpenStrip *Strip + InverseStrip *Strip + CloseStrip *Strip +} + +// NewBlockStatement instanciates a new block node. +func NewBlockStatement(pos int, line int) *BlockStatement { + return &BlockStatement{ + NodeType: NodeBlock, + Loc: Loc{pos, line}, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *BlockStatement) String() string { + return fmt.Sprintf("Block{Pos: %d}", node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *BlockStatement) Accept(visitor Visitor) interface{} { + return visitor.VisitBlock(node) +} + +// +// Partial Statement +// + +// PartialStatement represents a partial node. +type PartialStatement struct { + NodeType + Loc + + Name Node // PathExpression | SubExpression + Params []Node // [ Expression ... ] + Hash *Hash + + // whitespace management + Strip *Strip + Indent string +} + +// NewPartialStatement instanciates a new partial node. +func NewPartialStatement(pos int, line int) *PartialStatement { + return &PartialStatement{ + NodeType: NodePartial, + Loc: Loc{pos, line}, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *PartialStatement) String() string { + return fmt.Sprintf("Partial{Name:%s, Pos:%d}", node.Name, node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *PartialStatement) Accept(visitor Visitor) interface{} { + return visitor.VisitPartial(node) +} + +// +// Content Statement +// + +// ContentStatement represents a content node. +type ContentStatement struct { + NodeType + Loc + + Value string + Original string + + // whitespace management + RightStripped bool + LeftStripped bool +} + +// NewContentStatement instanciates a new content node. +func NewContentStatement(pos int, line int, val string) *ContentStatement { + return &ContentStatement{ + NodeType: NodeContent, + Loc: Loc{pos, line}, + + Value: val, + Original: val, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *ContentStatement) String() string { + return fmt.Sprintf("Content{Value:'%s', Pos:%d}", node.Value, node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *ContentStatement) Accept(visitor Visitor) interface{} { + return visitor.VisitContent(node) +} + +// +// Comment Statement +// + +// CommentStatement represents a comment node. +type CommentStatement struct { + NodeType + Loc + + Value string + + // whitespace management + Strip *Strip +} + +// NewCommentStatement instanciates a new comment node. +func NewCommentStatement(pos int, line int, val string) *CommentStatement { + return &CommentStatement{ + NodeType: NodeComment, + Loc: Loc{pos, line}, + + Value: val, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *CommentStatement) String() string { + return fmt.Sprintf("Comment{Value:'%s', Pos:%d}", node.Value, node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *CommentStatement) Accept(visitor Visitor) interface{} { + return visitor.VisitComment(node) +} + +// +// Expression +// + +// Expression represents an expression node. +type Expression struct { + NodeType + Loc + + Path Node // PathExpression | StringLiteral | BooleanLiteral | NumberLiteral + Params []Node // [ Expression ... ] + Hash *Hash +} + +// NewExpression instanciates a new expression node. +func NewExpression(pos int, line int) *Expression { + return &Expression{ + NodeType: NodeExpression, + Loc: Loc{pos, line}, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *Expression) String() string { + return fmt.Sprintf("Expr{Path:%s, Pos:%d}", node.Path, node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *Expression) Accept(visitor Visitor) interface{} { + return visitor.VisitExpression(node) +} + +// HelperName returns helper name, or an empty string if this expression can't be a helper. +func (node *Expression) HelperName() string { + path, ok := node.Path.(*PathExpression) + if !ok { + return "" + } + + if path.Data || (len(path.Parts) != 1) || (path.Depth > 0) || path.Scoped { + return "" + } + + return path.Parts[0] +} + +// FieldPath returns path expression representing a field path, or nil if this is not a field path. +func (node *Expression) FieldPath() *PathExpression { + path, ok := node.Path.(*PathExpression) + if !ok { + return nil + } + + return path +} + +// LiteralStr returns the string representation of literal value, with a boolean set to false if this is not a literal. +func (node *Expression) LiteralStr() (string, bool) { + return LiteralStr(node.Path) +} + +// Canonical returns the canonical form of expression node as a string. +func (node *Expression) Canonical() string { + if str, ok := HelperNameStr(node.Path); ok { + return str + } + + return "" +} + +// HelperNameStr returns the string representation of a helper name, with a boolean set to false if this is not a valid helper name. +// +// helperName : path | dataName | STRING | NUMBER | BOOLEAN | UNDEFINED | NULL +func HelperNameStr(node Node) (string, bool) { + // PathExpression + if str, ok := PathExpressionStr(node); ok { + return str, ok + } + + // Literal + if str, ok := LiteralStr(node); ok { + return str, ok + } + + return "", false +} + +// PathExpressionStr returns the string representation of path expression value, with a boolean set to false if this is not a path expression. +func PathExpressionStr(node Node) (string, bool) { + if path, ok := node.(*PathExpression); ok { + result := path.Original + + // "[foo bar]"" => "foo bar" + if (len(result) >= 2) && (result[0] == '[') && (result[len(result)-1] == ']') { + result = result[1 : len(result)-1] + } + + return result, true + } + + return "", false +} + +// LiteralStr returns the string representation of literal value, with a boolean set to false if this is not a literal. +func LiteralStr(node Node) (string, bool) { + if lit, ok := node.(*StringLiteral); ok { + return lit.Value, true + } + + if lit, ok := node.(*BooleanLiteral); ok { + return lit.Canonical(), true + } + + if lit, ok := node.(*NumberLiteral); ok { + return lit.Canonical(), true + } + + return "", false +} + +// +// SubExpression +// + +// SubExpression represents a subexpression node. +type SubExpression struct { + NodeType + Loc + + Expression *Expression +} + +// NewSubExpression instanciates a new subexpression node. +func NewSubExpression(pos int, line int) *SubExpression { + return &SubExpression{ + NodeType: NodeSubExpression, + Loc: Loc{pos, line}, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *SubExpression) String() string { + return fmt.Sprintf("Sexp{Path:%s, Pos:%d}", node.Expression.Path, node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *SubExpression) Accept(visitor Visitor) interface{} { + return visitor.VisitSubExpression(node) +} + +// +// Path Expression +// + +// PathExpression represents a path expression node. +type PathExpression struct { + NodeType + Loc + + Original string + Depth int + Parts []string + Data bool + Scoped bool +} + +// NewPathExpression instanciates a new path expression node. +func NewPathExpression(pos int, line int, data bool) *PathExpression { + result := &PathExpression{ + NodeType: NodePath, + Loc: Loc{pos, line}, + + Data: data, + } + + if data { + result.Original = "@" + } + + return result +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *PathExpression) String() string { + return fmt.Sprintf("Path{Original:'%s', Pos:%d}", node.Original, node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *PathExpression) Accept(visitor Visitor) interface{} { + return visitor.VisitPath(node) +} + +// Part adds path part. +func (node *PathExpression) Part(part string) { + node.Original += part + + switch part { + case "..": + node.Depth++ + node.Scoped = true + case ".", "this": + node.Scoped = true + default: + node.Parts = append(node.Parts, part) + } +} + +// Sep adds path separator. +func (node *PathExpression) Sep(separator string) { + node.Original += separator +} + +// IsDataRoot returns true if path expression is @root. +func (node *PathExpression) IsDataRoot() bool { + return node.Data && (node.Parts[0] == "root") +} + +// +// String Literal +// + +// StringLiteral represents a string node. +type StringLiteral struct { + NodeType + Loc + + Value string +} + +// NewStringLiteral instanciates a new string node. +func NewStringLiteral(pos int, line int, val string) *StringLiteral { + return &StringLiteral{ + NodeType: NodeString, + Loc: Loc{pos, line}, + + Value: val, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *StringLiteral) String() string { + return fmt.Sprintf("String{Value:'%s', Pos:%d}", node.Value, node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *StringLiteral) Accept(visitor Visitor) interface{} { + return visitor.VisitString(node) +} + +// +// Boolean Literal +// + +// BooleanLiteral represents a boolean node. +type BooleanLiteral struct { + NodeType + Loc + + Value bool + Original string +} + +// NewBooleanLiteral instanciates a new boolean node. +func NewBooleanLiteral(pos int, line int, val bool, original string) *BooleanLiteral { + return &BooleanLiteral{ + NodeType: NodeBoolean, + Loc: Loc{pos, line}, + + Value: val, + Original: original, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *BooleanLiteral) String() string { + return fmt.Sprintf("Boolean{Value:%s, Pos:%d}", node.Canonical(), node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *BooleanLiteral) Accept(visitor Visitor) interface{} { + return visitor.VisitBoolean(node) +} + +// Canonical returns the canonical form of boolean node as a string (ie. "true" | "false"). +func (node *BooleanLiteral) Canonical() string { + if node.Value { + return "true" + } + + return "false" +} + +// +// Number Literal +// + +// NumberLiteral represents a number node. +type NumberLiteral struct { + NodeType + Loc + + Value float64 + IsInt bool + Original string +} + +// NewNumberLiteral instanciates a new number node. +func NewNumberLiteral(pos int, line int, val float64, isInt bool, original string) *NumberLiteral { + return &NumberLiteral{ + NodeType: NodeNumber, + Loc: Loc{pos, line}, + + Value: val, + IsInt: isInt, + Original: original, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *NumberLiteral) String() string { + return fmt.Sprintf("Number{Value:%s, Pos:%d}", node.Canonical(), node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *NumberLiteral) Accept(visitor Visitor) interface{} { + return visitor.VisitNumber(node) +} + +// Canonical returns the canonical form of number node as a string (eg: "12", "-1.51"). +func (node *NumberLiteral) Canonical() string { + prec := -1 + if node.IsInt { + prec = 0 + } + return strconv.FormatFloat(node.Value, 'f', prec, 64) +} + +// Number returns an integer or a float. +func (node *NumberLiteral) Number() interface{} { + if node.IsInt { + return int(node.Value) + } + + return node.Value +} + +// +// Hash +// + +// Hash represents a hash node. +type Hash struct { + NodeType + Loc + + Pairs []*HashPair +} + +// NewHash instanciates a new hash node. +func NewHash(pos int, line int) *Hash { + return &Hash{ + NodeType: NodeHash, + Loc: Loc{pos, line}, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *Hash) String() string { + result := fmt.Sprintf("Hash{[%d", node.Loc.Pos) + + for i, p := range node.Pairs { + if i > 0 { + result += ", " + } + result += p.String() + } + + return result + fmt.Sprintf("], Pos:%d}", node.Loc.Pos) +} + +// Accept is the receiver entry point for visitors. +func (node *Hash) Accept(visitor Visitor) interface{} { + return visitor.VisitHash(node) +} + +// +// HashPair +// + +// HashPair represents a hash pair node. +type HashPair struct { + NodeType + Loc + + Key string + Val Node // Expression +} + +// NewHashPair instanciates a new hash pair node. +func NewHashPair(pos int, line int) *HashPair { + return &HashPair{ + NodeType: NodeHashPair, + Loc: Loc{pos, line}, + } +} + +// String returns a string representation of receiver that can be used for debugging. +func (node *HashPair) String() string { + return node.Key + "=" + node.Val.String() +} + +// Accept is the receiver entry point for visitors. +func (node *HashPair) Accept(visitor Visitor) interface{} { + return visitor.VisitHashPair(node) +} diff --git a/vendor/github.com/aymerick/raymond/ast/print.go b/vendor/github.com/aymerick/raymond/ast/print.go new file mode 100644 index 0000000..133ae6e --- /dev/null +++ b/vendor/github.com/aymerick/raymond/ast/print.go @@ -0,0 +1,279 @@ +package ast + +import ( + "fmt" + "strings" +) + +// printVisitor implements the Visitor interface to print a AST. +type printVisitor struct { + buf string + depth int + + original bool + inBlock bool +} + +func newPrintVisitor() *printVisitor { + return &printVisitor{} +} + +// Print returns a string representation of given AST, that can be used for debugging purpose. +func Print(node Node) string { + visitor := newPrintVisitor() + node.Accept(visitor) + return visitor.output() +} + +func (v *printVisitor) output() string { + return v.buf +} + +func (v *printVisitor) indent() { + for i := 0; i < v.depth; { + v.buf += " " + i++ + } +} + +func (v *printVisitor) str(val string) { + v.buf += val +} + +func (v *printVisitor) nl() { + v.str("\n") +} + +func (v *printVisitor) line(val string) { + v.indent() + v.str(val) + v.nl() +} + +// +// Visitor interface +// + +// Statements + +// VisitProgram implements corresponding Visitor interface method +func (v *printVisitor) VisitProgram(node *Program) interface{} { + if len(node.BlockParams) > 0 { + v.line("BLOCK PARAMS: [ " + strings.Join(node.BlockParams, " ") + " ]") + } + + for _, n := range node.Body { + n.Accept(v) + } + + return nil +} + +// VisitMustache implements corresponding Visitor interface method +func (v *printVisitor) VisitMustache(node *MustacheStatement) interface{} { + v.indent() + v.str("{{ ") + + node.Expression.Accept(v) + + v.str(" }}") + v.nl() + + return nil +} + +// VisitBlock implements corresponding Visitor interface method +func (v *printVisitor) VisitBlock(node *BlockStatement) interface{} { + v.inBlock = true + + v.line("BLOCK:") + v.depth++ + + node.Expression.Accept(v) + + if node.Program != nil { + v.line("PROGRAM:") + v.depth++ + node.Program.Accept(v) + v.depth-- + } + + if node.Inverse != nil { + // if node.Program != nil { + // v.depth++ + // } + + v.line("{{^}}") + v.depth++ + node.Inverse.Accept(v) + v.depth-- + + // if node.Program != nil { + // v.depth-- + // } + } + + v.inBlock = false + + return nil +} + +// VisitPartial implements corresponding Visitor interface method +func (v *printVisitor) VisitPartial(node *PartialStatement) interface{} { + v.indent() + v.str("{{> PARTIAL:") + + v.original = true + node.Name.Accept(v) + v.original = false + + if len(node.Params) > 0 { + v.str(" ") + node.Params[0].Accept(v) + } + + // hash + if node.Hash != nil { + v.str(" ") + node.Hash.Accept(v) + } + + v.str(" }}") + v.nl() + + return nil +} + +// VisitContent implements corresponding Visitor interface method +func (v *printVisitor) VisitContent(node *ContentStatement) interface{} { + v.line("CONTENT[ '" + node.Value + "' ]") + + return nil +} + +// VisitComment implements corresponding Visitor interface method +func (v *printVisitor) VisitComment(node *CommentStatement) interface{} { + v.line("{{! '" + node.Value + "' }}") + + return nil +} + +// Expressions + +// VisitExpression implements corresponding Visitor interface method +func (v *printVisitor) VisitExpression(node *Expression) interface{} { + if v.inBlock { + v.indent() + } + + // path + node.Path.Accept(v) + + // params + v.str(" [") + for i, n := range node.Params { + if i > 0 { + v.str(", ") + } + n.Accept(v) + } + v.str("]") + + // hash + if node.Hash != nil { + v.str(" ") + node.Hash.Accept(v) + } + + if v.inBlock { + v.nl() + } + + return nil +} + +// VisitSubExpression implements corresponding Visitor interface method +func (v *printVisitor) VisitSubExpression(node *SubExpression) interface{} { + node.Expression.Accept(v) + + return nil +} + +// VisitPath implements corresponding Visitor interface method +func (v *printVisitor) VisitPath(node *PathExpression) interface{} { + if v.original { + v.str(node.Original) + } else { + path := strings.Join(node.Parts, "/") + + result := "" + if node.Data { + result += "@" + } + + v.str(result + "PATH:" + path) + } + + return nil +} + +// Literals + +// VisitString implements corresponding Visitor interface method +func (v *printVisitor) VisitString(node *StringLiteral) interface{} { + if v.original { + v.str(node.Value) + } else { + v.str("\"" + node.Value + "\"") + } + + return nil +} + +// VisitBoolean implements corresponding Visitor interface method +func (v *printVisitor) VisitBoolean(node *BooleanLiteral) interface{} { + if v.original { + v.str(node.Original) + } else { + v.str(fmt.Sprintf("BOOLEAN{%s}", node.Canonical())) + } + + return nil +} + +// VisitNumber implements corresponding Visitor interface method +func (v *printVisitor) VisitNumber(node *NumberLiteral) interface{} { + if v.original { + v.str(node.Original) + } else { + v.str(fmt.Sprintf("NUMBER{%s}", node.Canonical())) + } + + return nil +} + +// Miscellaneous + +// VisitHash implements corresponding Visitor interface method +func (v *printVisitor) VisitHash(node *Hash) interface{} { + v.str("HASH{") + + for i, p := range node.Pairs { + if i > 0 { + v.str(", ") + } + p.Accept(v) + } + + v.str("}") + + return nil +} + +// VisitHashPair implements corresponding Visitor interface method +func (v *printVisitor) VisitHashPair(node *HashPair) interface{} { + v.str(node.Key + "=") + node.Val.Accept(v) + + return nil +} diff --git a/vendor/github.com/aymerick/raymond/data_frame.go b/vendor/github.com/aymerick/raymond/data_frame.go new file mode 100644 index 0000000..ce63218 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/data_frame.go @@ -0,0 +1,95 @@ +package raymond + +import "reflect" + +// DataFrame represents a private data frame. +// +// Cf. private variables documentation at: http://handlebarsjs.com/block_helpers.html +type DataFrame struct { + parent *DataFrame + data map[string]interface{} +} + +// NewDataFrame instanciates a new private data frame. +func NewDataFrame() *DataFrame { + return &DataFrame{ + data: make(map[string]interface{}), + } +} + +// Copy instanciates a new private data frame with receiver as parent. +func (p *DataFrame) Copy() *DataFrame { + result := NewDataFrame() + + for k, v := range p.data { + result.data[k] = v + } + + result.parent = p + + return result +} + +// newIterDataFrame instanciates a new private data frame with receiver as parent and with iteration data set (@index, @key, @first, @last) +func (p *DataFrame) newIterDataFrame(length int, i int, key interface{}) *DataFrame { + result := p.Copy() + + result.Set("index", i) + result.Set("key", key) + result.Set("first", i == 0) + result.Set("last", i == length-1) + + return result +} + +// Set sets a data value. +func (p *DataFrame) Set(key string, val interface{}) { + p.data[key] = val +} + +// Get gets a data value. +func (p *DataFrame) Get(key string) interface{} { + return p.find([]string{key}) +} + +// find gets a deep data value +// +// @todo This is NOT consistent with the way we resolve data in template (cf. `evalDataPathExpression()`) ! FIX THAT ! +func (p *DataFrame) find(parts []string) interface{} { + data := p.data + + for i, part := range parts { + val := data[part] + if val == nil { + return nil + } + + if i == len(parts)-1 { + // found + return val + } + + valValue := reflect.ValueOf(val) + if valValue.Kind() != reflect.Map { + // not found + return nil + } + + // continue + data = mapStringInterface(valValue) + } + + // not found + return nil +} + +// mapStringInterface converts any `map` to `map[string]interface{}` +func mapStringInterface(value reflect.Value) map[string]interface{} { + result := make(map[string]interface{}) + + for _, key := range value.MapKeys() { + result[strValue(key)] = value.MapIndex(key).Interface() + } + + return result +} diff --git a/vendor/github.com/aymerick/raymond/escape.go b/vendor/github.com/aymerick/raymond/escape.go new file mode 100644 index 0000000..6a0363c --- /dev/null +++ b/vendor/github.com/aymerick/raymond/escape.go @@ -0,0 +1,65 @@ +package raymond + +import ( + "bytes" + "strings" +) + +// +// That whole file is borrowed from https://github.com/golang/go/tree/master/src/html/escape.go +// +// With changes: +// ' => ' +// " => " +// +// To stay in sync with JS implementation, and make mustache tests pass. +// + +type writer interface { + WriteString(string) (int, error) +} + +const escapedChars = `&'<>"` + +func escape(w writer, s string) error { + i := strings.IndexAny(s, escapedChars) + for i != -1 { + if _, err := w.WriteString(s[:i]); err != nil { + return err + } + var esc string + switch s[i] { + case '&': + esc = "&" + case '\'': + esc = "'" + case '<': + esc = "<" + case '>': + esc = ">" + case '"': + esc = """ + default: + panic("unrecognized escape character") + } + s = s[i+1:] + if _, err := w.WriteString(esc); err != nil { + return err + } + i = strings.IndexAny(s, escapedChars) + } + _, err := w.WriteString(s) + return err +} + +// Escape escapes special HTML characters. +// +// It can be used by helpers that return a SafeString and that need to escape some content by themselves. +func Escape(s string) string { + if strings.IndexAny(s, escapedChars) == -1 { + return s + } + var buf bytes.Buffer + escape(&buf, s) + return buf.String() +} diff --git a/vendor/github.com/aymerick/raymond/eval.go b/vendor/github.com/aymerick/raymond/eval.go new file mode 100644 index 0000000..d49b708 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/eval.go @@ -0,0 +1,984 @@ +package raymond + +import ( + "bytes" + "fmt" + "reflect" + "strconv" + "strings" + + "github.com/aymerick/raymond/ast" +) + +var ( + // @note borrowed from https://github.com/golang/go/tree/master/src/text/template/exec.go + errorType = reflect.TypeOf((*error)(nil)).Elem() + fmtStringerType = reflect.TypeOf((*fmt.Stringer)(nil)).Elem() + + zero reflect.Value +) + +// evalVisitor evaluates a handlebars template with context +type evalVisitor struct { + tpl *Template + + // contexts stack + ctx []reflect.Value + + // current data frame (chained with parent) + dataFrame *DataFrame + + // block parameters stack + blockParams []map[string]interface{} + + // block statements stack + blocks []*ast.BlockStatement + + // expressions stack + exprs []*ast.Expression + + // memoize expressions that were function calls + exprFunc map[*ast.Expression]bool + + // used for info on panic + curNode ast.Node +} + +// NewEvalVisitor instanciate a new evaluation visitor with given context and initial private data frame +// +// If privData is nil, then a default data frame is created +func newEvalVisitor(tpl *Template, ctx interface{}, privData *DataFrame) *evalVisitor { + frame := privData + if frame == nil { + frame = NewDataFrame() + } + + return &evalVisitor{ + tpl: tpl, + ctx: []reflect.Value{reflect.ValueOf(ctx)}, + dataFrame: frame, + exprFunc: make(map[*ast.Expression]bool), + } +} + +// at sets current node +func (v *evalVisitor) at(node ast.Node) { + v.curNode = node +} + +// +// Contexts stack +// + +// pushCtx pushes new context to the stack +func (v *evalVisitor) pushCtx(ctx reflect.Value) { + v.ctx = append(v.ctx, ctx) +} + +// popCtx pops last context from stack +func (v *evalVisitor) popCtx() reflect.Value { + if len(v.ctx) == 0 { + return zero + } + + var result reflect.Value + result, v.ctx = v.ctx[len(v.ctx)-1], v.ctx[:len(v.ctx)-1] + + return result +} + +// rootCtx returns root context +func (v *evalVisitor) rootCtx() reflect.Value { + return v.ctx[0] +} + +// curCtx returns current context +func (v *evalVisitor) curCtx() reflect.Value { + return v.ancestorCtx(0) +} + +// ancestorCtx returns ancestor context +func (v *evalVisitor) ancestorCtx(depth int) reflect.Value { + index := len(v.ctx) - 1 - depth + if index < 0 { + return zero + } + + return v.ctx[index] +} + +// +// Private data frame +// + +// setDataFrame sets new data frame +func (v *evalVisitor) setDataFrame(frame *DataFrame) { + v.dataFrame = frame +} + +// popDataFrame sets back parent data frame +func (v *evalVisitor) popDataFrame() { + v.dataFrame = v.dataFrame.parent +} + +// +// Block Parameters stack +// + +// pushBlockParams pushes new block params to the stack +func (v *evalVisitor) pushBlockParams(params map[string]interface{}) { + v.blockParams = append(v.blockParams, params) +} + +// popBlockParams pops last block params from stack +func (v *evalVisitor) popBlockParams() map[string]interface{} { + var result map[string]interface{} + + if len(v.blockParams) == 0 { + return result + } + + result, v.blockParams = v.blockParams[len(v.blockParams)-1], v.blockParams[:len(v.blockParams)-1] + return result +} + +// blockParam iterates on stack to find given block parameter, and returns its value or nil if not founc +func (v *evalVisitor) blockParam(name string) interface{} { + for i := len(v.blockParams) - 1; i >= 0; i-- { + for k, v := range v.blockParams[i] { + if name == k { + return v + } + } + } + + return nil +} + +// +// Blocks stack +// + +// pushBlock pushes new block statement to stack +func (v *evalVisitor) pushBlock(block *ast.BlockStatement) { + v.blocks = append(v.blocks, block) +} + +// popBlock pops last block statement from stack +func (v *evalVisitor) popBlock() *ast.BlockStatement { + if len(v.blocks) == 0 { + return nil + } + + var result *ast.BlockStatement + result, v.blocks = v.blocks[len(v.blocks)-1], v.blocks[:len(v.blocks)-1] + + return result +} + +// curBlock returns current block statement +func (v *evalVisitor) curBlock() *ast.BlockStatement { + if len(v.blocks) == 0 { + return nil + } + + return v.blocks[len(v.blocks)-1] +} + +// +// Expressions stack +// + +// pushExpr pushes new expression to stack +func (v *evalVisitor) pushExpr(expression *ast.Expression) { + v.exprs = append(v.exprs, expression) +} + +// popExpr pops last expression from stack +func (v *evalVisitor) popExpr() *ast.Expression { + if len(v.exprs) == 0 { + return nil + } + + var result *ast.Expression + result, v.exprs = v.exprs[len(v.exprs)-1], v.exprs[:len(v.exprs)-1] + + return result +} + +// curExpr returns current expression +func (v *evalVisitor) curExpr() *ast.Expression { + if len(v.exprs) == 0 { + return nil + } + + return v.exprs[len(v.exprs)-1] +} + +// +// Error functions +// + +// errPanic panics +func (v *evalVisitor) errPanic(err error) { + panic(fmt.Errorf("Evaluation error: %s\nCurrent node:\n\t%s", err, v.curNode)) +} + +// errorf panics with a custom message +func (v *evalVisitor) errorf(format string, args ...interface{}) { + v.errPanic(fmt.Errorf(format, args...)) +} + +// +// Evaluation +// + +// evalProgram eEvaluates program with given context and returns string result +func (v *evalVisitor) evalProgram(program *ast.Program, ctx interface{}, data *DataFrame, key interface{}) string { + blockParams := make(map[string]interface{}) + + // compute block params + if len(program.BlockParams) > 0 { + blockParams[program.BlockParams[0]] = ctx + } + + if (len(program.BlockParams) > 1) && (key != nil) { + blockParams[program.BlockParams[1]] = key + } + + // push contexts + if len(blockParams) > 0 { + v.pushBlockParams(blockParams) + } + + ctxVal := reflect.ValueOf(ctx) + if ctxVal.IsValid() { + v.pushCtx(ctxVal) + } + + if data != nil { + v.setDataFrame(data) + } + + // evaluate program + result, _ := program.Accept(v).(string) + + // pop contexts + if data != nil { + v.popDataFrame() + } + + if ctxVal.IsValid() { + v.popCtx() + } + + if len(blockParams) > 0 { + v.popBlockParams() + } + + return result +} + +// evalPath evaluates all path parts with given context +func (v *evalVisitor) evalPath(ctx reflect.Value, parts []string, exprRoot bool) (reflect.Value, bool) { + partResolved := false + + for i := 0; i < len(parts); i++ { + part := parts[i] + + // "[foo bar]"" => "foo bar" + if (len(part) >= 2) && (part[0] == '[') && (part[len(part)-1] == ']') { + part = part[1 : len(part)-1] + } + + ctx = v.evalField(ctx, part, exprRoot) + if !ctx.IsValid() { + break + } + + // we resolved at least one part of path + partResolved = true + } + + return ctx, partResolved +} + +// evalField evaluates field with given context +func (v *evalVisitor) evalField(ctx reflect.Value, fieldName string, exprRoot bool) reflect.Value { + result := zero + + ctx, _ = indirect(ctx) + if !ctx.IsValid() { + return result + } + + // check if this is a method call + result, isMeth := v.evalMethod(ctx, fieldName, exprRoot) + if !isMeth { + switch ctx.Kind() { + case reflect.Struct: + // example: firstName => FirstName + expFieldName := strings.Title(fieldName) + + // check if struct have this field and that it is exported + if tField, ok := ctx.Type().FieldByName(expFieldName); ok && (tField.PkgPath == "") { + // struct field + result = ctx.FieldByIndex(tField.Index) + } + case reflect.Map: + nameVal := reflect.ValueOf(fieldName) + if nameVal.Type().AssignableTo(ctx.Type().Key()) { + // map key + result = ctx.MapIndex(nameVal) + } + case reflect.Array, reflect.Slice: + if i, err := strconv.Atoi(fieldName); (err == nil) && (i < ctx.Len()) { + result = ctx.Index(i) + } + } + } + + // check if result is a function + result, _ = indirect(result) + if result.Kind() == reflect.Func { + result = v.evalFieldFunc(fieldName, result, exprRoot) + } + + return result +} + +// evalFieldFunc tries to evaluate given method name, and a boolean to indicate if this was a method call +func (v *evalVisitor) evalMethod(ctx reflect.Value, name string, exprRoot bool) (reflect.Value, bool) { + if ctx.Kind() != reflect.Interface && ctx.CanAddr() { + ctx = ctx.Addr() + } + + method := ctx.MethodByName(name) + if !method.IsValid() { + // example: subject() => Subject() + method = ctx.MethodByName(strings.Title(name)) + } + + if !method.IsValid() { + return zero, false + } + + return v.evalFieldFunc(name, method, exprRoot), true +} + +// evalFieldFunc evaluates given function +func (v *evalVisitor) evalFieldFunc(name string, funcVal reflect.Value, exprRoot bool) reflect.Value { + ensureValidHelper(name, funcVal) + + var options *Options + if exprRoot { + // create function arg with all params/hash + expr := v.curExpr() + options = v.helperOptions(expr) + + // ok, that expression was a function call + v.exprFunc[expr] = true + } else { + // we are not at root of expression, so we are a parameter... and we don't like + // infinite loops caused by trying to parse ourself forever + options = newEmptyOptions(v) + } + + return v.callFunc(name, funcVal, options) +} + +// findBlockParam returns node's block parameter +func (v *evalVisitor) findBlockParam(node *ast.PathExpression) (string, interface{}) { + if len(node.Parts) > 0 { + name := node.Parts[0] + if value := v.blockParam(name); value != nil { + return name, value + } + } + + return "", nil +} + +// evalPathExpression evaluates a path expression +func (v *evalVisitor) evalPathExpression(node *ast.PathExpression, exprRoot bool) interface{} { + var result interface{} + + if name, value := v.findBlockParam(node); value != nil { + // block parameter value + + // We push a new context so we can evaluate the path expression (note: this may be a bad idea). + // + // Example: + // {{#foo as |bar|}} + // {{bar.baz}} + // {{/foo}} + // + // With data: + // {"foo": {"baz": "bat"}} + newCtx := map[string]interface{}{name: value} + + v.pushCtx(reflect.ValueOf(newCtx)) + result = v.evalCtxPathExpression(node, exprRoot) + v.popCtx() + } else { + ctxTried := false + + if node.IsDataRoot() { + // context path + result = v.evalCtxPathExpression(node, exprRoot) + + ctxTried = true + } + + if (result == nil) && node.Data { + // if it is @root, then we tried to evaluate with root context but nothing was found + // so let's try with private data + + // private data + result = v.evalDataPathExpression(node, exprRoot) + } + + if (result == nil) && !ctxTried { + // context path + result = v.evalCtxPathExpression(node, exprRoot) + } + } + + return result +} + +// evalDataPathExpression evaluates a private data path expression +func (v *evalVisitor) evalDataPathExpression(node *ast.PathExpression, exprRoot bool) interface{} { + // find data frame + frame := v.dataFrame + for i := node.Depth; i > 0; i-- { + if frame.parent == nil { + return nil + } + frame = frame.parent + } + + // resolve data + // @note Can be changed to v.evalCtx() as context can't be an array + result, _ := v.evalCtxPath(reflect.ValueOf(frame.data), node.Parts, exprRoot) + return result +} + +// evalCtxPathExpression evaluates a context path expression +func (v *evalVisitor) evalCtxPathExpression(node *ast.PathExpression, exprRoot bool) interface{} { + v.at(node) + + if node.IsDataRoot() { + // `@root` - remove the first part + parts := node.Parts[1:len(node.Parts)] + + result, _ := v.evalCtxPath(v.rootCtx(), parts, exprRoot) + return result + } + + return v.evalDepthPath(node.Depth, node.Parts, exprRoot) +} + +// evalDepthPath iterates on contexts, starting at given depth, until there is one that resolve given path parts +func (v *evalVisitor) evalDepthPath(depth int, parts []string, exprRoot bool) interface{} { + var result interface{} + partResolved := false + + ctx := v.ancestorCtx(depth) + + for (result == nil) && ctx.IsValid() && (depth <= len(v.ctx) && !partResolved) { + // try with context + result, partResolved = v.evalCtxPath(ctx, parts, exprRoot) + + // As soon as we find the first part of a path, we must not try to resolve with parent context if result is finally `nil` + // Reference: "Dotted Names - Context Precedence" mustache test + if !partResolved && (result == nil) { + // try with previous context + depth++ + ctx = v.ancestorCtx(depth) + } + } + + return result +} + +// evalCtxPath evaluates path with given context +func (v *evalVisitor) evalCtxPath(ctx reflect.Value, parts []string, exprRoot bool) (interface{}, bool) { + var result interface{} + partResolved := false + + switch ctx.Kind() { + case reflect.Array, reflect.Slice: + // Array context + var results []interface{} + + for i := 0; i < ctx.Len(); i++ { + value, _ := v.evalPath(ctx.Index(i), parts, exprRoot) + if value.IsValid() { + results = append(results, value.Interface()) + } + } + + result = results + default: + // NOT array context + var value reflect.Value + + value, partResolved = v.evalPath(ctx, parts, exprRoot) + if value.IsValid() { + result = value.Interface() + } + } + + return result, partResolved +} + +// +// Helpers +// + +// isHelperCall returns true if given expression is a helper call +func (v *evalVisitor) isHelperCall(node *ast.Expression) bool { + if helperName := node.HelperName(); helperName != "" { + return v.findHelper(helperName) != zero + } + return false +} + +// findHelper finds given helper +func (v *evalVisitor) findHelper(name string) reflect.Value { + // check template helpers + if h := v.tpl.findHelper(name); h != zero { + return h + } + + // check global helpers + return findHelper(name) +} + +// callFunc calls function with given options +func (v *evalVisitor) callFunc(name string, funcVal reflect.Value, options *Options) reflect.Value { + params := options.Params() + + funcType := funcVal.Type() + + // @todo Is there a better way to do that ? + strType := reflect.TypeOf("") + boolType := reflect.TypeOf(true) + + // check parameters number + addOptions := false + numIn := funcType.NumIn() + + if numIn == len(params)+1 { + lastArgType := funcType.In(numIn - 1) + if reflect.TypeOf(options).AssignableTo(lastArgType) { + addOptions = true + } + } + + if !addOptions && (len(params) != numIn) { + v.errorf("Helper '%s' called with wrong number of arguments, needed %d but got %d", name, numIn, len(params)) + } + + // check and collect arguments + args := make([]reflect.Value, numIn) + for i, param := range params { + arg := reflect.ValueOf(param) + argType := funcType.In(i) + + if !arg.IsValid() { + if canBeNil(argType) { + arg = reflect.Zero(argType) + } else if argType.Kind() == reflect.String { + arg = reflect.ValueOf("") + } else { + // @todo Maybe we can panic on that + return reflect.Zero(strType) + } + } + + if !arg.Type().AssignableTo(argType) { + if strType.AssignableTo(argType) { + // convert parameter to string + arg = reflect.ValueOf(strValue(arg)) + } else if boolType.AssignableTo(argType) { + // convert parameter to bool + val, _ := isTrueValue(arg) + arg = reflect.ValueOf(val) + } else { + v.errorf("Helper %s called with argument %d with type %s but it should be %s", name, i, arg.Type(), argType) + } + } + + args[i] = arg + } + + if addOptions { + args[numIn-1] = reflect.ValueOf(options) + } + + result := funcVal.Call(args) + + return result[0] +} + +// callHelper invoqs helper function for given expression node +func (v *evalVisitor) callHelper(name string, helper reflect.Value, node *ast.Expression) interface{} { + result := v.callFunc(name, helper, v.helperOptions(node)) + if !result.IsValid() { + return nil + } + + // @todo We maybe want to ensure here that helper returned a string or a SafeString + return result.Interface() +} + +// helperOptions computes helper options argument from an expression +func (v *evalVisitor) helperOptions(node *ast.Expression) *Options { + var params []interface{} + var hash map[string]interface{} + + for _, paramNode := range node.Params { + param := paramNode.Accept(v) + params = append(params, param) + } + + if node.Hash != nil { + hash, _ = node.Hash.Accept(v).(map[string]interface{}) + } + + return newOptions(v, params, hash) +} + +// +// Partials +// + +// findPartial finds given partial +func (v *evalVisitor) findPartial(name string) *partial { + // check template partials + if p := v.tpl.findPartial(name); p != nil { + return p + } + + // check global partials + return findPartial(name) +} + +// partialContext computes partial context +func (v *evalVisitor) partialContext(node *ast.PartialStatement) reflect.Value { + if nb := len(node.Params); nb > 1 { + v.errorf("Unsupported number of partial arguments: %d", nb) + } + + if (len(node.Params) > 0) && (node.Hash != nil) { + v.errorf("Passing both context and named parameters to a partial is not allowed") + } + + if len(node.Params) == 1 { + return reflect.ValueOf(node.Params[0].Accept(v)) + } + + if node.Hash != nil { + hash, _ := node.Hash.Accept(v).(map[string]interface{}) + return reflect.ValueOf(hash) + } + + return zero +} + +// evalPartial evaluates a partial +func (v *evalVisitor) evalPartial(p *partial, node *ast.PartialStatement) string { + // get partial template + partialTpl, err := p.template() + if err != nil { + v.errPanic(err) + } + + // push partial context + ctx := v.partialContext(node) + if ctx.IsValid() { + v.pushCtx(ctx) + } + + // evaluate partial template + result, _ := partialTpl.program.Accept(v).(string) + + // ident partial + result = indentLines(result, node.Indent) + + if ctx.IsValid() { + v.popCtx() + } + + return result +} + +// indentLines indents all lines of given string +func indentLines(str string, indent string) string { + if indent == "" { + return str + } + + var indented []string + + lines := strings.Split(str, "\n") + for i, line := range lines { + if (i == (len(lines) - 1)) && (line == "") { + // input string ends with a new line + indented = append(indented, line) + } else { + indented = append(indented, indent+line) + } + } + + return strings.Join(indented, "\n") +} + +// +// Functions +// + +// wasFuncCall returns true if given expression was a function call +func (v *evalVisitor) wasFuncCall(node *ast.Expression) bool { + // check if expression was tagged as a function call + return v.exprFunc[node] +} + +// +// Visitor interface +// + +// Statements + +// VisitProgram implements corresponding Visitor interface method +func (v *evalVisitor) VisitProgram(node *ast.Program) interface{} { + v.at(node) + + buf := new(bytes.Buffer) + + for _, n := range node.Body { + if str := Str(n.Accept(v)); str != "" { + if _, err := buf.Write([]byte(str)); err != nil { + v.errPanic(err) + } + } + } + + return buf.String() +} + +// VisitMustache implements corresponding Visitor interface method +func (v *evalVisitor) VisitMustache(node *ast.MustacheStatement) interface{} { + v.at(node) + + // evaluate expression + expr := node.Expression.Accept(v) + + // check if this is a safe string + isSafe := isSafeString(expr) + + // get string value + str := Str(expr) + if !isSafe && !node.Unescaped { + // escape html + str = Escape(str) + } + + return str +} + +// VisitBlock implements corresponding Visitor interface method +func (v *evalVisitor) VisitBlock(node *ast.BlockStatement) interface{} { + v.at(node) + + v.pushBlock(node) + + var result interface{} + + // evaluate expression + expr := node.Expression.Accept(v) + + if v.isHelperCall(node.Expression) || v.wasFuncCall(node.Expression) { + // it is the responsability of the helper/function to evaluate block + result = expr + } else { + val := reflect.ValueOf(expr) + + truth, _ := isTrueValue(val) + if truth { + if node.Program != nil { + switch val.Kind() { + case reflect.Array, reflect.Slice: + concat := "" + + // Array context + for i := 0; i < val.Len(); i++ { + // Computes new private data frame + frame := v.dataFrame.newIterDataFrame(val.Len(), i, nil) + + // Evaluate program + concat += v.evalProgram(node.Program, val.Index(i).Interface(), frame, i) + } + + result = concat + default: + // NOT array + result = v.evalProgram(node.Program, expr, nil, nil) + } + } + } else if node.Inverse != nil { + result, _ = node.Inverse.Accept(v).(string) + } + } + + v.popBlock() + + return result +} + +// VisitPartial implements corresponding Visitor interface method +func (v *evalVisitor) VisitPartial(node *ast.PartialStatement) interface{} { + v.at(node) + + // partialName: helperName | sexpr + name, ok := ast.HelperNameStr(node.Name) + if !ok { + if subExpr, ok := node.Name.(*ast.SubExpression); ok { + name, _ = subExpr.Accept(v).(string) + } + } + + if name == "" { + v.errorf("Unexpected partial name: %q", node.Name) + } + + partial := v.findPartial(name) + if partial == nil { + v.errorf("Partial not found: %s", name) + } + + return v.evalPartial(partial, node) +} + +// VisitContent implements corresponding Visitor interface method +func (v *evalVisitor) VisitContent(node *ast.ContentStatement) interface{} { + v.at(node) + + // write content as is + return node.Value +} + +// VisitComment implements corresponding Visitor interface method +func (v *evalVisitor) VisitComment(node *ast.CommentStatement) interface{} { + v.at(node) + + // ignore comments + return "" +} + +// Expressions + +// VisitExpression implements corresponding Visitor interface method +func (v *evalVisitor) VisitExpression(node *ast.Expression) interface{} { + v.at(node) + + var result interface{} + done := false + + v.pushExpr(node) + + // helper call + if helperName := node.HelperName(); helperName != "" { + if helper := v.findHelper(helperName); helper != zero { + result = v.callHelper(helperName, helper, node) + done = true + } + } + + if !done { + // literal + if literal, ok := node.LiteralStr(); ok { + if val := v.evalField(v.curCtx(), literal, true); val.IsValid() { + result = val.Interface() + done = true + } + } + } + + if !done { + // field path + if path := node.FieldPath(); path != nil { + // @todo Find a cleaner way ! Don't break the pattern ! + // this is an exception to visitor pattern, because we need to pass the info + // that this path is at root of current expression + if val := v.evalPathExpression(path, true); val != nil { + result = val + } + } + } + + v.popExpr() + + return result +} + +// VisitSubExpression implements corresponding Visitor interface method +func (v *evalVisitor) VisitSubExpression(node *ast.SubExpression) interface{} { + v.at(node) + + return node.Expression.Accept(v) +} + +// VisitPath implements corresponding Visitor interface method +func (v *evalVisitor) VisitPath(node *ast.PathExpression) interface{} { + return v.evalPathExpression(node, false) +} + +// Literals + +// VisitString implements corresponding Visitor interface method +func (v *evalVisitor) VisitString(node *ast.StringLiteral) interface{} { + v.at(node) + + return node.Value +} + +// VisitBoolean implements corresponding Visitor interface method +func (v *evalVisitor) VisitBoolean(node *ast.BooleanLiteral) interface{} { + v.at(node) + + return node.Value +} + +// VisitNumber implements corresponding Visitor interface method +func (v *evalVisitor) VisitNumber(node *ast.NumberLiteral) interface{} { + v.at(node) + + return node.Number() +} + +// Miscellaneous + +// VisitHash implements corresponding Visitor interface method +func (v *evalVisitor) VisitHash(node *ast.Hash) interface{} { + v.at(node) + + result := make(map[string]interface{}) + + for _, pair := range node.Pairs { + if value := pair.Accept(v); value != nil { + result[pair.Key] = value + } + } + + return result +} + +// VisitHashPair implements corresponding Visitor interface method +func (v *evalVisitor) VisitHashPair(node *ast.HashPair) interface{} { + v.at(node) + + return node.Val.Accept(v) +} diff --git a/vendor/github.com/aymerick/raymond/helper.go b/vendor/github.com/aymerick/raymond/helper.go new file mode 100644 index 0000000..0e5ed6e --- /dev/null +++ b/vendor/github.com/aymerick/raymond/helper.go @@ -0,0 +1,371 @@ +package raymond + +import ( + "fmt" + "log" + "reflect" + "sync" +) + +// Options represents the options argument provided to helpers and context functions. +type Options struct { + // evaluation visitor + eval *evalVisitor + + // params + params []interface{} + hash map[string]interface{} +} + +// helpers stores all globally registered helpers +var helpers = make(map[string]reflect.Value) + +// protects global helpers +var helpersMutex sync.RWMutex + +func init() { + // register builtin helpers + RegisterHelper("if", ifHelper) + RegisterHelper("unless", unlessHelper) + RegisterHelper("with", withHelper) + RegisterHelper("each", eachHelper) + RegisterHelper("log", logHelper) + RegisterHelper("lookup", lookupHelper) +} + +// RegisterHelper registers a global helper. That helper will be available to all templates. +func RegisterHelper(name string, helper interface{}) { + helpersMutex.Lock() + defer helpersMutex.Unlock() + + if helpers[name] != zero { + panic(fmt.Errorf("Helper already registered: %s", name)) + } + + val := reflect.ValueOf(helper) + ensureValidHelper(name, val) + + helpers[name] = val +} + +// RegisterHelpers registers several global helpers. Those helpers will be available to all templates. +func RegisterHelpers(helpers map[string]interface{}) { + for name, helper := range helpers { + RegisterHelper(name, helper) + } +} + +// ensureValidHelper panics if given helper is not valid +func ensureValidHelper(name string, funcValue reflect.Value) { + if funcValue.Kind() != reflect.Func { + panic(fmt.Errorf("Helper must be a function: %s", name)) + } + + funcType := funcValue.Type() + + if funcType.NumOut() != 1 { + panic(fmt.Errorf("Helper function must return a string or a SafeString: %s", name)) + } + + // @todo Check if first returned value is a string, SafeString or interface{} ? +} + +// findHelper finds a globally registered helper +func findHelper(name string) reflect.Value { + helpersMutex.RLock() + defer helpersMutex.RUnlock() + + return helpers[name] +} + +// newOptions instanciates a new Options +func newOptions(eval *evalVisitor, params []interface{}, hash map[string]interface{}) *Options { + return &Options{ + eval: eval, + params: params, + hash: hash, + } +} + +// newEmptyOptions instanciates a new empty Options +func newEmptyOptions(eval *evalVisitor) *Options { + return &Options{ + eval: eval, + hash: make(map[string]interface{}), + } +} + +// +// Context Values +// + +// Value returns field value from current context. +func (options *Options) Value(name string) interface{} { + value := options.eval.evalField(options.eval.curCtx(), name, false) + if !value.IsValid() { + return nil + } + + return value.Interface() +} + +// ValueStr returns string representation of field value from current context. +func (options *Options) ValueStr(name string) string { + return Str(options.Value(name)) +} + +// Ctx returns current evaluation context. +func (options *Options) Ctx() interface{} { + return options.eval.curCtx().Interface() +} + +// +// Hash Arguments +// + +// HashProp returns hash property. +func (options *Options) HashProp(name string) interface{} { + return options.hash[name] +} + +// HashStr returns string representation of hash property. +func (options *Options) HashStr(name string) string { + return Str(options.hash[name]) +} + +// Hash returns entire hash. +func (options *Options) Hash() map[string]interface{} { + return options.hash +} + +// +// Parameters +// + +// Param returns parameter at given position. +func (options *Options) Param(pos int) interface{} { + if len(options.params) > pos { + return options.params[pos] + } + + return nil +} + +// ParamStr returns string representation of parameter at given position. +func (options *Options) ParamStr(pos int) string { + return Str(options.Param(pos)) +} + +// Params returns all parameters. +func (options *Options) Params() []interface{} { + return options.params +} + +// +// Private data +// + +// Data returns private data value. +func (options *Options) Data(name string) interface{} { + return options.eval.dataFrame.Get(name) +} + +// DataStr returns string representation of private data value. +func (options *Options) DataStr(name string) string { + return Str(options.eval.dataFrame.Get(name)) +} + +// DataFrame returns current private data frame. +func (options *Options) DataFrame() *DataFrame { + return options.eval.dataFrame +} + +// NewDataFrame instanciates a new data frame that is a copy of current evaluation data frame. +// +// Parent of returned data frame is set to current evaluation data frame. +func (options *Options) NewDataFrame() *DataFrame { + return options.eval.dataFrame.Copy() +} + +// newIterDataFrame instanciates a new data frame and set iteration specific vars +func (options *Options) newIterDataFrame(length int, i int, key interface{}) *DataFrame { + return options.eval.dataFrame.newIterDataFrame(length, i, key) +} + +// +// Evaluation +// + +// evalBlock evaluates block with given context, private data and iteration key +func (options *Options) evalBlock(ctx interface{}, data *DataFrame, key interface{}) string { + result := "" + + if block := options.eval.curBlock(); (block != nil) && (block.Program != nil) { + result = options.eval.evalProgram(block.Program, ctx, data, key) + } + + return result +} + +// Fn evaluates block with current evaluation context. +func (options *Options) Fn() string { + return options.evalBlock(nil, nil, nil) +} + +// FnCtxData evaluates block with given context and private data frame. +func (options *Options) FnCtxData(ctx interface{}, data *DataFrame) string { + return options.evalBlock(ctx, data, nil) +} + +// FnWith evaluates block with given context. +func (options *Options) FnWith(ctx interface{}) string { + return options.evalBlock(ctx, nil, nil) +} + +// FnData evaluates block with given private data frame. +func (options *Options) FnData(data *DataFrame) string { + return options.evalBlock(nil, data, nil) +} + +// Inverse evaluates "else block". +func (options *Options) Inverse() string { + result := "" + if block := options.eval.curBlock(); (block != nil) && (block.Inverse != nil) { + result, _ = block.Inverse.Accept(options.eval).(string) + } + + return result +} + +// Eval evaluates field for given context. +func (options *Options) Eval(ctx interface{}, field string) interface{} { + if ctx == nil { + return nil + } + + if field == "" { + return nil + } + + val := options.eval.evalField(reflect.ValueOf(ctx), field, false) + if !val.IsValid() { + return nil + } + + return val.Interface() +} + +// +// Misc +// + +// isIncludableZero returns true if 'includeZero' option is set and first param is the number 0 +func (options *Options) isIncludableZero() bool { + b, ok := options.HashProp("includeZero").(bool) + if ok && b { + nb, ok := options.Param(0).(int) + if ok && nb == 0 { + return true + } + } + + return false +} + +// +// Builtin helpers +// + +// #if block helper +func ifHelper(conditional interface{}, options *Options) interface{} { + if options.isIncludableZero() || IsTrue(conditional) { + return options.Fn() + } + + return options.Inverse() +} + +// #unless block helper +func unlessHelper(conditional interface{}, options *Options) interface{} { + if options.isIncludableZero() || IsTrue(conditional) { + return options.Inverse() + } + + return options.Fn() +} + +// #with block helper +func withHelper(context interface{}, options *Options) interface{} { + if IsTrue(context) { + return options.FnWith(context) + } + + return options.Inverse() +} + +// #each block helper +func eachHelper(context interface{}, options *Options) interface{} { + if !IsTrue(context) { + return options.Inverse() + } + + result := "" + + val := reflect.ValueOf(context) + switch val.Kind() { + case reflect.Array, reflect.Slice: + for i := 0; i < val.Len(); i++ { + // computes private data + data := options.newIterDataFrame(val.Len(), i, nil) + + // evaluates block + result += options.evalBlock(val.Index(i).Interface(), data, i) + } + case reflect.Map: + // note: a go hash is not ordered, so result may vary, this behaviour differs from the JS implementation + keys := val.MapKeys() + for i := 0; i < len(keys); i++ { + key := keys[i].Interface() + ctx := val.MapIndex(keys[i]).Interface() + + // computes private data + data := options.newIterDataFrame(len(keys), i, key) + + // evaluates block + result += options.evalBlock(ctx, data, key) + } + case reflect.Struct: + var exportedFields []int + + // collect exported fields only + for i := 0; i < val.NumField(); i++ { + if tField := val.Type().Field(i); tField.PkgPath == "" { + exportedFields = append(exportedFields, i) + } + } + + for i, fieldIndex := range exportedFields { + key := val.Type().Field(fieldIndex).Name + ctx := val.Field(fieldIndex).Interface() + + // computes private data + data := options.newIterDataFrame(len(exportedFields), i, key) + + // evaluates block + result += options.evalBlock(ctx, data, key) + } + } + + return result +} + +// #log helper +func logHelper(message string) interface{} { + log.Print(message) + return "" +} + +// #lookup helper +func lookupHelper(obj interface{}, field string, options *Options) interface{} { + return Str(options.Eval(obj, field)) +} diff --git a/vendor/github.com/aymerick/raymond/lexer/lexer.go b/vendor/github.com/aymerick/raymond/lexer/lexer.go new file mode 100644 index 0000000..48899f8 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/lexer/lexer.go @@ -0,0 +1,639 @@ +// Package lexer provides a handlebars tokenizer. +package lexer + +import ( + "fmt" + "regexp" + "strings" + "unicode" + "unicode/utf8" +) + +// References: +// - https://github.com/wycats/handlebars.js/blob/master/src/handlebars.l +// - https://github.com/golang/go/blob/master/src/text/template/parse/lex.go + +const ( + // Mustaches detection + escapedEscapedOpenMustache = "\\\\{{" + escapedOpenMustache = "\\{{" + openMustache = "{{" + closeMustache = "}}" + closeStripMustache = "~}}" + closeUnescapedStripMustache = "}~}}" +) + +const eof = -1 + +// lexFunc represents a function that returns the next lexer function. +type lexFunc func(*Lexer) lexFunc + +// Lexer is a lexical analyzer. +type Lexer struct { + input string // input to scan + name string // lexer name, used for testing purpose + tokens chan Token // channel of scanned tokens + nextFunc lexFunc // the next function to execute + + pos int // current byte position in input string + line int // current line position in input string + width int // size of last rune scanned from input string + start int // start position of the token we are scanning + + // the shameful contextual properties needed because `nextFunc` is not enough + closeComment *regexp.Regexp // regexp to scan close of current comment + rawBlock bool // are we parsing a raw block content ? +} + +var ( + lookheadChars = `[\s` + regexp.QuoteMeta("=~}/)|") + `]` + literalLookheadChars = `[\s` + regexp.QuoteMeta("~})") + `]` + + // characters not allowed in an identifier + unallowedIDChars = " \n\t!\"#%&'()*+,./;<=>@[\\]^`{|}~" + + // regular expressions + rID = regexp.MustCompile(`^[^` + regexp.QuoteMeta(unallowedIDChars) + `]+`) + rDotID = regexp.MustCompile(`^\.` + lookheadChars) + rTrue = regexp.MustCompile(`^true` + literalLookheadChars) + rFalse = regexp.MustCompile(`^false` + literalLookheadChars) + rOpenRaw = regexp.MustCompile(`^\{\{\{\{`) + rCloseRaw = regexp.MustCompile(`^\}\}\}\}`) + rOpenEndRaw = regexp.MustCompile(`^\{\{\{\{/`) + rOpenEndRawLookAhead = regexp.MustCompile(`\{\{\{\{/`) + rOpenUnescaped = regexp.MustCompile(`^\{\{~?\{`) + rCloseUnescaped = regexp.MustCompile(`^\}~?\}\}`) + rOpenBlock = regexp.MustCompile(`^\{\{~?#`) + rOpenEndBlock = regexp.MustCompile(`^\{\{~?/`) + rOpenPartial = regexp.MustCompile(`^\{\{~?>`) + // {{^}} or {{else}} + rInverse = regexp.MustCompile(`^(\{\{~?\^\s*~?\}\}|\{\{~?\s*else\s*~?\}\})`) + rOpenInverse = regexp.MustCompile(`^\{\{~?\^`) + rOpenInverseChain = regexp.MustCompile(`^\{\{~?\s*else`) + // {{ or {{& + rOpen = regexp.MustCompile(`^\{\{~?&?`) + rClose = regexp.MustCompile(`^~?\}\}`) + rOpenBlockParams = regexp.MustCompile(`^as\s+\|`) + // {{!-- ... --}} + rOpenCommentDash = regexp.MustCompile(`^\{\{~?!--\s*`) + rCloseCommentDash = regexp.MustCompile(`^\s*--~?\}\}`) + // {{! ... }} + rOpenComment = regexp.MustCompile(`^\{\{~?!\s*`) + rCloseComment = regexp.MustCompile(`^\s*~?\}\}`) +) + +// Scan scans given input. +// +// Tokens can then be fetched sequentially thanks to NextToken() function on returned lexer. +func Scan(input string) *Lexer { + return scanWithName(input, "") +} + +// scanWithName scans given input, with a name used for testing +// +// Tokens can then be fetched sequentially thanks to NextToken() function on returned lexer. +func scanWithName(input string, name string) *Lexer { + result := &Lexer{ + input: input, + name: name, + tokens: make(chan Token), + line: 1, + } + + go result.run() + + return result +} + +// Collect scans and collect all tokens. +// +// This should be used for debugging purpose only. You should use Scan() and lexer.NextToken() functions instead. +func Collect(input string) []Token { + var result []Token + + l := Scan(input) + for { + token := l.NextToken() + result = append(result, token) + + if token.Kind == TokenEOF || token.Kind == TokenError { + break + } + } + + return result +} + +// NextToken returns the next scanned token. +func (l *Lexer) NextToken() Token { + result := <-l.tokens + + return result +} + +// run starts lexical analysis +func (l *Lexer) run() { + for l.nextFunc = lexContent; l.nextFunc != nil; { + l.nextFunc = l.nextFunc(l) + } +} + +// next returns next character from input, or eof of there is nothing left to scan +func (l *Lexer) next() rune { + if l.pos >= len(l.input) { + l.width = 0 + return eof + } + + r, w := utf8.DecodeRuneInString(l.input[l.pos:]) + l.width = w + l.pos += l.width + + return r +} + +func (l *Lexer) produce(kind TokenKind, val string) { + l.tokens <- Token{kind, val, l.start, l.line} + + // scanning a new token + l.start = l.pos + + // update line number + l.line += strings.Count(val, "\n") +} + +// emit emits a new scanned token +func (l *Lexer) emit(kind TokenKind) { + l.produce(kind, l.input[l.start:l.pos]) +} + +// emitContent emits scanned content +func (l *Lexer) emitContent() { + if l.pos > l.start { + l.emit(TokenContent) + } +} + +// emitString emits a scanned string +func (l *Lexer) emitString(delimiter rune) { + str := l.input[l.start:l.pos] + + // replace escaped delimiters + str = strings.Replace(str, "\\"+string(delimiter), string(delimiter), -1) + + l.produce(TokenString, str) +} + +// peek returns but does not consume the next character in the input +func (l *Lexer) peek() rune { + r := l.next() + l.backup() + return r +} + +// backup steps back one character +// +// WARNING: Can only be called once per call of next +func (l *Lexer) backup() { + l.pos -= l.width +} + +// ignoreskips all characters that have been scanned up to current position +func (l *Lexer) ignore() { + l.start = l.pos +} + +// accept scans the next character if it is included in given string +func (l *Lexer) accept(valid string) bool { + if strings.IndexRune(valid, l.next()) >= 0 { + return true + } + + l.backup() + + return false +} + +// acceptRun scans all following characters that are part of given string +func (l *Lexer) acceptRun(valid string) { + for strings.IndexRune(valid, l.next()) >= 0 { + } + + l.backup() +} + +// errorf emits an error token +func (l *Lexer) errorf(format string, args ...interface{}) lexFunc { + l.tokens <- Token{TokenError, fmt.Sprintf(format, args...), l.start, l.line} + return nil +} + +// isString returns true if content at current scanning position starts with given string +func (l *Lexer) isString(str string) bool { + return strings.HasPrefix(l.input[l.pos:], str) +} + +// findRegexp returns the first string from current scanning position that matches given regular expression +func (l *Lexer) findRegexp(r *regexp.Regexp) string { + return r.FindString(l.input[l.pos:]) +} + +// indexRegexp returns the index of the first string from current scanning position that matches given regular expression +// +// It returns -1 if not found +func (l *Lexer) indexRegexp(r *regexp.Regexp) int { + loc := r.FindStringIndex(l.input[l.pos:]) + if loc == nil { + return -1 + } + return loc[0] +} + +// lexContent scans content (ie: not between mustaches) +func lexContent(l *Lexer) lexFunc { + var next lexFunc + + if l.rawBlock { + if i := l.indexRegexp(rOpenEndRawLookAhead); i != -1 { + // {{{{/ + l.rawBlock = false + l.pos += i + + next = lexOpenMustache + } else { + return l.errorf("Unclosed raw block") + } + } else if l.isString(escapedEscapedOpenMustache) { + // \\{{ + + // emit content with only one escaped escape + l.next() + l.emitContent() + + // ignore second escaped escape + l.next() + l.ignore() + + next = lexContent + } else if l.isString(escapedOpenMustache) { + // \{{ + next = lexEscapedOpenMustache + } else if str := l.findRegexp(rOpenCommentDash); str != "" { + // {{!-- + l.closeComment = rCloseCommentDash + + next = lexComment + } else if str := l.findRegexp(rOpenComment); str != "" { + // {{! + l.closeComment = rCloseComment + + next = lexComment + } else if l.isString(openMustache) { + // {{ + next = lexOpenMustache + } + + if next != nil { + // emit scanned content + l.emitContent() + + // scan next token + return next + } + + // scan next rune + if l.next() == eof { + // emit scanned content + l.emitContent() + + // this is over + l.emit(TokenEOF) + return nil + } + + // continue content scanning + return lexContent +} + +// lexEscapedOpenMustache scans \{{ +func lexEscapedOpenMustache(l *Lexer) lexFunc { + // ignore escape character + l.next() + l.ignore() + + // scan mustaches + for l.peek() == '{' { + l.next() + } + + return lexContent +} + +// lexOpenMustache scans {{ +func lexOpenMustache(l *Lexer) lexFunc { + var str string + var tok TokenKind + + nextFunc := lexExpression + + if str = l.findRegexp(rOpenEndRaw); str != "" { + tok = TokenOpenEndRawBlock + } else if str = l.findRegexp(rOpenRaw); str != "" { + tok = TokenOpenRawBlock + l.rawBlock = true + } else if str = l.findRegexp(rOpenUnescaped); str != "" { + tok = TokenOpenUnescaped + } else if str = l.findRegexp(rOpenBlock); str != "" { + tok = TokenOpenBlock + } else if str = l.findRegexp(rOpenEndBlock); str != "" { + tok = TokenOpenEndBlock + } else if str = l.findRegexp(rOpenPartial); str != "" { + tok = TokenOpenPartial + } else if str = l.findRegexp(rInverse); str != "" { + tok = TokenInverse + nextFunc = lexContent + } else if str = l.findRegexp(rOpenInverse); str != "" { + tok = TokenOpenInverse + } else if str = l.findRegexp(rOpenInverseChain); str != "" { + tok = TokenOpenInverseChain + } else if str = l.findRegexp(rOpen); str != "" { + tok = TokenOpen + } else { + // this is rotten + panic("Current pos MUST be an opening mustache") + } + + l.pos += len(str) + l.emit(tok) + + return nextFunc +} + +// lexCloseMustache scans }} or ~}} +func lexCloseMustache(l *Lexer) lexFunc { + var str string + var tok TokenKind + + if str = l.findRegexp(rCloseRaw); str != "" { + // }}}} + tok = TokenCloseRawBlock + } else if str = l.findRegexp(rCloseUnescaped); str != "" { + // }}} + tok = TokenCloseUnescaped + } else if str = l.findRegexp(rClose); str != "" { + // }} + tok = TokenClose + } else { + // this is rotten + panic("Current pos MUST be a closing mustache") + } + + l.pos += len(str) + l.emit(tok) + + return lexContent +} + +// lexExpression scans inside mustaches +func lexExpression(l *Lexer) lexFunc { + // search close mustache delimiter + if l.isString(closeMustache) || l.isString(closeStripMustache) || l.isString(closeUnescapedStripMustache) { + return lexCloseMustache + } + + // search some patterns before advancing scanning position + + // "as |" + if str := l.findRegexp(rOpenBlockParams); str != "" { + l.pos += len(str) + l.emit(TokenOpenBlockParams) + return lexExpression + } + + // .. + if l.isString("..") { + l.pos += len("..") + l.emit(TokenID) + return lexExpression + } + + // . + if str := l.findRegexp(rDotID); str != "" { + l.pos += len(".") + l.emit(TokenID) + return lexExpression + } + + // true + if str := l.findRegexp(rTrue); str != "" { + l.pos += len("true") + l.emit(TokenBoolean) + return lexExpression + } + + // false + if str := l.findRegexp(rFalse); str != "" { + l.pos += len("false") + l.emit(TokenBoolean) + return lexExpression + } + + // let's scan next character + switch r := l.next(); { + case r == eof: + return l.errorf("Unclosed expression") + case isIgnorable(r): + return lexIgnorable + case r == '(': + l.emit(TokenOpenSexpr) + case r == ')': + l.emit(TokenCloseSexpr) + case r == '=': + l.emit(TokenEquals) + case r == '@': + l.emit(TokenData) + case r == '"' || r == '\'': + l.backup() + return lexString + case r == '/' || r == '.': + l.emit(TokenSep) + case r == '|': + l.emit(TokenCloseBlockParams) + case r == '+' || r == '-' || (r >= '0' && r <= '9'): + l.backup() + return lexNumber + case r == '[': + return lexPathLiteral + case strings.IndexRune(unallowedIDChars, r) < 0: + l.backup() + return lexIdentifier + default: + return l.errorf("Unexpected character in expression: '%c'", r) + } + + return lexExpression +} + +// lexComment scans {{!-- or {{! +func lexComment(l *Lexer) lexFunc { + if str := l.findRegexp(l.closeComment); str != "" { + l.pos += len(str) + l.emit(TokenComment) + + return lexContent + } + + if r := l.next(); r == eof { + return l.errorf("Unclosed comment") + } + + return lexComment +} + +// lexIgnorable scans all following ignorable characters +func lexIgnorable(l *Lexer) lexFunc { + for isIgnorable(l.peek()) { + l.next() + } + l.ignore() + + return lexExpression +} + +// lexString scans a string +func lexString(l *Lexer) lexFunc { + // get string delimiter + delim := l.next() + var prev rune + + // ignore delimiter + l.ignore() + + for { + r := l.next() + if r == eof || r == '\n' { + return l.errorf("Unterminated string") + } + + if (r == delim) && (prev != '\\') { + break + } + + prev = r + } + + // remove end delimiter + l.backup() + + // emit string + l.emitString(delim) + + // skip end delimiter + l.next() + l.ignore() + + return lexExpression +} + +// lexNumber scans a number: decimal, octal, hex, float, or imaginary. This +// isn't a perfect number scanner - for instance it accepts "." and "0x0.2" +// and "089" - but when it's wrong the input is invalid and the parser (via +// strconv) will notice. +// +// NOTE: borrowed from https://github.com/golang/go/tree/master/src/text/template/parse/lex.go +func lexNumber(l *Lexer) lexFunc { + if !l.scanNumber() { + return l.errorf("bad number syntax: %q", l.input[l.start:l.pos]) + } + if sign := l.peek(); sign == '+' || sign == '-' { + // Complex: 1+2i. No spaces, must end in 'i'. + if !l.scanNumber() || l.input[l.pos-1] != 'i' { + return l.errorf("bad number syntax: %q", l.input[l.start:l.pos]) + } + l.emit(TokenNumber) + } else { + l.emit(TokenNumber) + } + return lexExpression +} + +// scanNumber scans a number +// +// NOTE: borrowed from https://github.com/golang/go/tree/master/src/text/template/parse/lex.go +func (l *Lexer) scanNumber() bool { + // Optional leading sign. + l.accept("+-") + + // Is it hex? + digits := "0123456789" + + if l.accept("0") && l.accept("xX") { + digits = "0123456789abcdefABCDEF" + } + + l.acceptRun(digits) + + if l.accept(".") { + l.acceptRun(digits) + } + + if l.accept("eE") { + l.accept("+-") + l.acceptRun("0123456789") + } + + // Is it imaginary? + l.accept("i") + + // Next thing mustn't be alphanumeric. + if isAlphaNumeric(l.peek()) { + l.next() + return false + } + + return true +} + +// lexIdentifier scans an ID +func lexIdentifier(l *Lexer) lexFunc { + str := l.findRegexp(rID) + if len(str) == 0 { + // this is rotten + panic("Identifier expected") + } + + l.pos += len(str) + l.emit(TokenID) + + return lexExpression +} + +// lexPathLiteral scans an [ID] +func lexPathLiteral(l *Lexer) lexFunc { + for { + r := l.next() + if r == eof || r == '\n' { + return l.errorf("Unterminated path literal") + } + + if r == ']' { + break + } + } + + l.emit(TokenID) + + return lexExpression +} + +// isIgnorable returns true if given character is ignorable (ie. whitespace of line feed) +func isIgnorable(r rune) bool { + return r == ' ' || r == '\t' || r == '\n' +} + +// isAlphaNumeric reports whether r is an alphabetic, digit, or underscore. +// +// NOTE borrowed from https://github.com/golang/go/tree/master/src/text/template/parse/lex.go +func isAlphaNumeric(r rune) bool { + return r == '_' || unicode.IsLetter(r) || unicode.IsDigit(r) +} diff --git a/vendor/github.com/aymerick/raymond/lexer/token.go b/vendor/github.com/aymerick/raymond/lexer/token.go new file mode 100644 index 0000000..13cf2e6 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/lexer/token.go @@ -0,0 +1,183 @@ +package lexer + +import "fmt" + +const ( + // TokenError represents an error + TokenError TokenKind = iota + + // TokenEOF represents an End Of File + TokenEOF + + // + // Mustache delimiters + // + + // TokenOpen is the OPEN token + TokenOpen + + // TokenClose is the CLOSE token + TokenClose + + // TokenOpenRawBlock is the OPEN_RAW_BLOCK token + TokenOpenRawBlock + + // TokenCloseRawBlock is the CLOSE_RAW_BLOCK token + TokenCloseRawBlock + + // TokenOpenEndRawBlock is the END_RAW_BLOCK token + TokenOpenEndRawBlock + + // TokenOpenUnescaped is the OPEN_UNESCAPED token + TokenOpenUnescaped + + // TokenCloseUnescaped is the CLOSE_UNESCAPED token + TokenCloseUnescaped + + // TokenOpenBlock is the OPEN_BLOCK token + TokenOpenBlock + + // TokenOpenEndBlock is the OPEN_ENDBLOCK token + TokenOpenEndBlock + + // TokenInverse is the INVERSE token + TokenInverse + + // TokenOpenInverse is the OPEN_INVERSE token + TokenOpenInverse + + // TokenOpenInverseChain is the OPEN_INVERSE_CHAIN token + TokenOpenInverseChain + + // TokenOpenPartial is the OPEN_PARTIAL token + TokenOpenPartial + + // TokenComment is the COMMENT token + TokenComment + + // + // Inside mustaches + // + + // TokenOpenSexpr is the OPEN_SEXPR token + TokenOpenSexpr + + // TokenCloseSexpr is the CLOSE_SEXPR token + TokenCloseSexpr + + // TokenEquals is the EQUALS token + TokenEquals + + // TokenData is the DATA token + TokenData + + // TokenSep is the SEP token + TokenSep + + // TokenOpenBlockParams is the OPEN_BLOCK_PARAMS token + TokenOpenBlockParams + + // TokenCloseBlockParams is the CLOSE_BLOCK_PARAMS token + TokenCloseBlockParams + + // + // Tokens with content + // + + // TokenContent is the CONTENT token + TokenContent + + // TokenID is the ID token + TokenID + + // TokenString is the STRING token + TokenString + + // TokenNumber is the NUMBER token + TokenNumber + + // TokenBoolean is the BOOLEAN token + TokenBoolean +) + +const ( + // Option to generate token position in its string representation + dumpTokenPos = false + + // Option to generate values for all token kinds for their string representations + dumpAllTokensVal = true +) + +// TokenKind represents a Token type. +type TokenKind int + +// Token represents a scanned token. +type Token struct { + Kind TokenKind // Token kind + Val string // Token value + + Pos int // Byte position in input string + Line int // Line number in input string +} + +// tokenName permits to display token name given token type +var tokenName = map[TokenKind]string{ + TokenError: "Error", + TokenEOF: "EOF", + TokenContent: "Content", + TokenComment: "Comment", + TokenOpen: "Open", + TokenClose: "Close", + TokenOpenUnescaped: "OpenUnescaped", + TokenCloseUnescaped: "CloseUnescaped", + TokenOpenBlock: "OpenBlock", + TokenOpenEndBlock: "OpenEndBlock", + TokenOpenRawBlock: "OpenRawBlock", + TokenCloseRawBlock: "CloseRawBlock", + TokenOpenEndRawBlock: "OpenEndRawBlock", + TokenOpenBlockParams: "OpenBlockParams", + TokenCloseBlockParams: "CloseBlockParams", + TokenInverse: "Inverse", + TokenOpenInverse: "OpenInverse", + TokenOpenInverseChain: "OpenInverseChain", + TokenOpenPartial: "OpenPartial", + TokenOpenSexpr: "OpenSexpr", + TokenCloseSexpr: "CloseSexpr", + TokenID: "ID", + TokenEquals: "Equals", + TokenString: "String", + TokenNumber: "Number", + TokenBoolean: "Boolean", + TokenData: "Data", + TokenSep: "Sep", +} + +// String returns the token kind string representation for debugging. +func (k TokenKind) String() string { + s := tokenName[k] + if s == "" { + return fmt.Sprintf("Token-%d", int(k)) + } + return s +} + +// String returns the token string representation for debugging. +func (t Token) String() string { + result := "" + + if dumpTokenPos { + result += fmt.Sprintf("%d:", t.Pos) + } + + result += fmt.Sprintf("%s", t.Kind) + + if (dumpAllTokensVal || (t.Kind >= TokenContent)) && len(t.Val) > 0 { + if len(t.Val) > 100 { + result += fmt.Sprintf("{%.20q...}", t.Val) + } else { + result += fmt.Sprintf("{%q}", t.Val) + } + } + + return result +} diff --git a/vendor/github.com/aymerick/raymond/parser/parser.go b/vendor/github.com/aymerick/raymond/parser/parser.go new file mode 100644 index 0000000..22eed3c --- /dev/null +++ b/vendor/github.com/aymerick/raymond/parser/parser.go @@ -0,0 +1,846 @@ +// Package parser provides a handlebars syntax analyser. It consumes the tokens provided by the lexer to build an AST. +package parser + +import ( + "fmt" + "regexp" + "runtime" + "strconv" + + "github.com/aymerick/raymond/ast" + "github.com/aymerick/raymond/lexer" +) + +// References: +// - https://github.com/wycats/handlebars.js/blob/master/src/handlebars.yy +// - https://github.com/golang/go/blob/master/src/text/template/parse/parse.go + +// parser is a syntax analyzer. +type parser struct { + // Lexer + lex *lexer.Lexer + + // Root node + root ast.Node + + // Tokens parsed but not consumed yet + tokens []*lexer.Token + + // All tokens have been retreieved from lexer + lexOver bool +} + +var ( + rOpenComment = regexp.MustCompile(`^\{\{~?!-?-?`) + rCloseComment = regexp.MustCompile(`-?-?~?\}\}$`) + rOpenAmp = regexp.MustCompile(`^\{\{~?&`) +) + +// new instanciates a new parser +func new(input string) *parser { + return &parser{ + lex: lexer.Scan(input), + } +} + +// Parse analyzes given input and returns the AST root node. +func Parse(input string) (result *ast.Program, err error) { + // recover error + defer errRecover(&err) + + parser := new(input) + + // parse + result = parser.parseProgram() + + // check last token + token := parser.shift() + if token.Kind != lexer.TokenEOF { + // Parsing ended before EOF + errToken(token, "Syntax error") + } + + // fix whitespaces + processWhitespaces(result) + + // named returned values + return +} + +// errRecover recovers parsing panic +func errRecover(errp *error) { + e := recover() + if e != nil { + switch err := e.(type) { + case runtime.Error: + panic(e) + case error: + *errp = err + default: + panic(e) + } + } +} + +// errPanic panics +func errPanic(err error, line int) { + panic(fmt.Errorf("Parse error on line %d:\n%s", line, err)) +} + +// errNode panics with given node infos +func errNode(node ast.Node, msg string) { + errPanic(fmt.Errorf("%s\nNode: %s", msg, node), node.Location().Line) +} + +// errNode panics with given Token infos +func errToken(tok *lexer.Token, msg string) { + errPanic(fmt.Errorf("%s\nToken: %s", msg, tok), tok.Line) +} + +// errNode panics because of an unexpected Token kind +func errExpected(expect lexer.TokenKind, tok *lexer.Token) { + errPanic(fmt.Errorf("Expecting %s, got: '%s'", expect, tok), tok.Line) +} + +// program : statement* +func (p *parser) parseProgram() *ast.Program { + result := ast.NewProgram(p.next().Pos, p.next().Line) + + for p.isStatement() { + result.AddStatement(p.parseStatement()) + } + + return result +} + +// statement : mustache | block | rawBlock | partial | content | COMMENT +func (p *parser) parseStatement() ast.Node { + var result ast.Node + + tok := p.next() + + switch tok.Kind { + case lexer.TokenOpen, lexer.TokenOpenUnescaped: + // mustache + result = p.parseMustache() + case lexer.TokenOpenBlock: + // block + result = p.parseBlock() + case lexer.TokenOpenInverse: + // block + result = p.parseInverse() + case lexer.TokenOpenRawBlock: + // rawBlock + result = p.parseRawBlock() + case lexer.TokenOpenPartial: + // partial + result = p.parsePartial() + case lexer.TokenContent: + // content + result = p.parseContent() + case lexer.TokenComment: + // COMMENT + result = p.parseComment() + } + + return result +} + +// isStatement returns true if next token starts a statement +func (p *parser) isStatement() bool { + if !p.have(1) { + return false + } + + switch p.next().Kind { + case lexer.TokenOpen, lexer.TokenOpenUnescaped, lexer.TokenOpenBlock, + lexer.TokenOpenInverse, lexer.TokenOpenRawBlock, lexer.TokenOpenPartial, + lexer.TokenContent, lexer.TokenComment: + return true + } + + return false +} + +// content : CONTENT +func (p *parser) parseContent() *ast.ContentStatement { + // CONTENT + tok := p.shift() + if tok.Kind != lexer.TokenContent { + // @todo This check can be removed if content is optional in a raw block + errExpected(lexer.TokenContent, tok) + } + + return ast.NewContentStatement(tok.Pos, tok.Line, tok.Val) +} + +// COMMENT +func (p *parser) parseComment() *ast.CommentStatement { + // COMMENT + tok := p.shift() + + value := rOpenComment.ReplaceAllString(tok.Val, "") + value = rCloseComment.ReplaceAllString(value, "") + + result := ast.NewCommentStatement(tok.Pos, tok.Line, value) + result.Strip = ast.NewStripForStr(tok.Val) + + return result +} + +// param* hash? +func (p *parser) parseExpressionParamsHash() ([]ast.Node, *ast.Hash) { + var params []ast.Node + var hash *ast.Hash + + // params* + if p.isParam() { + params = p.parseParams() + } + + // hash? + if p.isHashSegment() { + hash = p.parseHash() + } + + return params, hash +} + +// helperName param* hash? +func (p *parser) parseExpression(tok *lexer.Token) *ast.Expression { + result := ast.NewExpression(tok.Pos, tok.Line) + + // helperName + result.Path = p.parseHelperName() + + // param* hash? + result.Params, result.Hash = p.parseExpressionParamsHash() + + return result +} + +// rawBlock : openRawBlock content endRawBlock +// openRawBlock : OPEN_RAW_BLOCK helperName param* hash? CLOSE_RAW_BLOCK +// endRawBlock : OPEN_END_RAW_BLOCK helperName CLOSE_RAW_BLOCK +func (p *parser) parseRawBlock() *ast.BlockStatement { + // OPEN_RAW_BLOCK + tok := p.shift() + + result := ast.NewBlockStatement(tok.Pos, tok.Line) + + // helperName param* hash? + result.Expression = p.parseExpression(tok) + + openName := result.Expression.Canonical() + + // CLOSE_RAW_BLOCK + tok = p.shift() + if tok.Kind != lexer.TokenCloseRawBlock { + errExpected(lexer.TokenCloseRawBlock, tok) + } + + // content + // @todo Is content mandatory in a raw block ? + content := p.parseContent() + + program := ast.NewProgram(tok.Pos, tok.Line) + program.AddStatement(content) + + result.Program = program + + // OPEN_END_RAW_BLOCK + tok = p.shift() + if tok.Kind != lexer.TokenOpenEndRawBlock { + // should never happen as it is caught by lexer + errExpected(lexer.TokenOpenEndRawBlock, tok) + } + + // helperName + endID := p.parseHelperName() + + closeName, ok := ast.HelperNameStr(endID) + if !ok { + errNode(endID, "Erroneous closing expression") + } + + if openName != closeName { + errNode(endID, fmt.Sprintf("%s doesn't match %s", openName, closeName)) + } + + // CLOSE_RAW_BLOCK + tok = p.shift() + if tok.Kind != lexer.TokenCloseRawBlock { + errExpected(lexer.TokenCloseRawBlock, tok) + } + + return result +} + +// block : openBlock program inverseChain? closeBlock +func (p *parser) parseBlock() *ast.BlockStatement { + // openBlock + result, blockParams := p.parseOpenBlock() + + // program + program := p.parseProgram() + program.BlockParams = blockParams + result.Program = program + + // inverseChain? + if p.isInverseChain() { + result.Inverse = p.parseInverseChain() + } + + // closeBlock + p.parseCloseBlock(result) + + setBlockInverseStrip(result) + + return result +} + +// setBlockInverseStrip is called when parsing `block` (openBlock | openInverse) and `inverseChain` +// +// TODO: This was totally cargo culted ! CHECK THAT ! +// +// cf. prepareBlock() in: +// https://github.com/wycats/handlebars.js/blob/master/lib/handlebars/compiler/helper.js +func setBlockInverseStrip(block *ast.BlockStatement) { + if block.Inverse == nil { + return + } + + if block.Inverse.Chained { + b, _ := block.Inverse.Body[0].(*ast.BlockStatement) + b.CloseStrip = block.CloseStrip + } + + block.InverseStrip = block.Inverse.Strip +} + +// block : openInverse program inverseAndProgram? closeBlock +func (p *parser) parseInverse() *ast.BlockStatement { + // openInverse + result, blockParams := p.parseOpenBlock() + + // program + program := p.parseProgram() + + program.BlockParams = blockParams + result.Inverse = program + + // inverseAndProgram? + if p.isInverse() { + result.Program = p.parseInverseAndProgram() + } + + // closeBlock + p.parseCloseBlock(result) + + setBlockInverseStrip(result) + + return result +} + +// helperName param* hash? blockParams? +func (p *parser) parseOpenBlockExpression(tok *lexer.Token) (*ast.BlockStatement, []string) { + var blockParams []string + + result := ast.NewBlockStatement(tok.Pos, tok.Line) + + // helperName param* hash? + result.Expression = p.parseExpression(tok) + + // blockParams? + if p.isBlockParams() { + blockParams = p.parseBlockParams() + } + + // named returned values + return result, blockParams +} + +// inverseChain : openInverseChain program inverseChain? +// | inverseAndProgram +func (p *parser) parseInverseChain() *ast.Program { + if p.isInverse() { + // inverseAndProgram + return p.parseInverseAndProgram() + } + + result := ast.NewProgram(p.next().Pos, p.next().Line) + + // openInverseChain + block, blockParams := p.parseOpenBlock() + + // program + program := p.parseProgram() + + program.BlockParams = blockParams + block.Program = program + + // inverseChain? + if p.isInverseChain() { + block.Inverse = p.parseInverseChain() + } + + setBlockInverseStrip(block) + + result.Chained = true + result.AddStatement(block) + + return result +} + +// Returns true if current token starts an inverse chain +func (p *parser) isInverseChain() bool { + return p.isOpenInverseChain() || p.isInverse() +} + +// inverseAndProgram : INVERSE program +func (p *parser) parseInverseAndProgram() *ast.Program { + // INVERSE + tok := p.shift() + + // program + result := p.parseProgram() + result.Strip = ast.NewStripForStr(tok.Val) + + return result +} + +// openBlock : OPEN_BLOCK helperName param* hash? blockParams? CLOSE +// openInverse : OPEN_INVERSE helperName param* hash? blockParams? CLOSE +// openInverseChain: OPEN_INVERSE_CHAIN helperName param* hash? blockParams? CLOSE +func (p *parser) parseOpenBlock() (*ast.BlockStatement, []string) { + // OPEN_BLOCK | OPEN_INVERSE | OPEN_INVERSE_CHAIN + tok := p.shift() + + // helperName param* hash? blockParams? + result, blockParams := p.parseOpenBlockExpression(tok) + + // CLOSE + tokClose := p.shift() + if tokClose.Kind != lexer.TokenClose { + errExpected(lexer.TokenClose, tokClose) + } + + result.OpenStrip = ast.NewStrip(tok.Val, tokClose.Val) + + // named returned values + return result, blockParams +} + +// closeBlock : OPEN_ENDBLOCK helperName CLOSE +func (p *parser) parseCloseBlock(block *ast.BlockStatement) { + // OPEN_ENDBLOCK + tok := p.shift() + if tok.Kind != lexer.TokenOpenEndBlock { + errExpected(lexer.TokenOpenEndBlock, tok) + } + + // helperName + endID := p.parseHelperName() + + closeName, ok := ast.HelperNameStr(endID) + if !ok { + errNode(endID, "Erroneous closing expression") + } + + openName := block.Expression.Canonical() + if openName != closeName { + errNode(endID, fmt.Sprintf("%s doesn't match %s", openName, closeName)) + } + + // CLOSE + tokClose := p.shift() + if tokClose.Kind != lexer.TokenClose { + errExpected(lexer.TokenClose, tokClose) + } + + block.CloseStrip = ast.NewStrip(tok.Val, tokClose.Val) +} + +// mustache : OPEN helperName param* hash? CLOSE +// | OPEN_UNESCAPED helperName param* hash? CLOSE_UNESCAPED +func (p *parser) parseMustache() *ast.MustacheStatement { + // OPEN | OPEN_UNESCAPED + tok := p.shift() + + closeToken := lexer.TokenClose + if tok.Kind == lexer.TokenOpenUnescaped { + closeToken = lexer.TokenCloseUnescaped + } + + unescaped := false + if (tok.Kind == lexer.TokenOpenUnescaped) || (rOpenAmp.MatchString(tok.Val)) { + unescaped = true + } + + result := ast.NewMustacheStatement(tok.Pos, tok.Line, unescaped) + + // helperName param* hash? + result.Expression = p.parseExpression(tok) + + // CLOSE | CLOSE_UNESCAPED + tokClose := p.shift() + if tokClose.Kind != closeToken { + errExpected(closeToken, tokClose) + } + + result.Strip = ast.NewStrip(tok.Val, tokClose.Val) + + return result +} + +// partial : OPEN_PARTIAL partialName param* hash? CLOSE +func (p *parser) parsePartial() *ast.PartialStatement { + // OPEN_PARTIAL + tok := p.shift() + + result := ast.NewPartialStatement(tok.Pos, tok.Line) + + // partialName + result.Name = p.parsePartialName() + + // param* hash? + result.Params, result.Hash = p.parseExpressionParamsHash() + + // CLOSE + tokClose := p.shift() + if tokClose.Kind != lexer.TokenClose { + errExpected(lexer.TokenClose, tokClose) + } + + result.Strip = ast.NewStrip(tok.Val, tokClose.Val) + + return result +} + +// helperName | sexpr +func (p *parser) parseHelperNameOrSexpr() ast.Node { + if p.isSexpr() { + // sexpr + return p.parseSexpr() + } + + // helperName + return p.parseHelperName() +} + +// param : helperName | sexpr +func (p *parser) parseParam() ast.Node { + return p.parseHelperNameOrSexpr() +} + +// Returns true if next tokens represent a `param` +func (p *parser) isParam() bool { + return (p.isSexpr() || p.isHelperName()) && !p.isHashSegment() +} + +// param* +func (p *parser) parseParams() []ast.Node { + var result []ast.Node + + for p.isParam() { + result = append(result, p.parseParam()) + } + + return result +} + +// sexpr : OPEN_SEXPR helperName param* hash? CLOSE_SEXPR +func (p *parser) parseSexpr() *ast.SubExpression { + // OPEN_SEXPR + tok := p.shift() + + result := ast.NewSubExpression(tok.Pos, tok.Line) + + // helperName param* hash? + result.Expression = p.parseExpression(tok) + + // CLOSE_SEXPR + tok = p.shift() + if tok.Kind != lexer.TokenCloseSexpr { + errExpected(lexer.TokenCloseSexpr, tok) + } + + return result +} + +// hash : hashSegment+ +func (p *parser) parseHash() *ast.Hash { + var pairs []*ast.HashPair + + for p.isHashSegment() { + pairs = append(pairs, p.parseHashSegment()) + } + + firstLoc := pairs[0].Location() + + result := ast.NewHash(firstLoc.Pos, firstLoc.Line) + result.Pairs = pairs + + return result +} + +// returns true if next tokens represents a `hashSegment` +func (p *parser) isHashSegment() bool { + return p.have(2) && (p.next().Kind == lexer.TokenID) && (p.nextAt(1).Kind == lexer.TokenEquals) +} + +// hashSegment : ID EQUALS param +func (p *parser) parseHashSegment() *ast.HashPair { + // ID + tok := p.shift() + + // EQUALS + p.shift() + + // param + param := p.parseParam() + + result := ast.NewHashPair(tok.Pos, tok.Line) + result.Key = tok.Val + result.Val = param + + return result +} + +// blockParams : OPEN_BLOCK_PARAMS ID+ CLOSE_BLOCK_PARAMS +func (p *parser) parseBlockParams() []string { + var result []string + + // OPEN_BLOCK_PARAMS + tok := p.shift() + + // ID+ + for p.isID() { + result = append(result, p.shift().Val) + } + + if len(result) == 0 { + errExpected(lexer.TokenID, p.next()) + } + + // CLOSE_BLOCK_PARAMS + tok = p.shift() + if tok.Kind != lexer.TokenCloseBlockParams { + errExpected(lexer.TokenCloseBlockParams, tok) + } + + return result +} + +// helperName : path | dataName | STRING | NUMBER | BOOLEAN | UNDEFINED | NULL +func (p *parser) parseHelperName() ast.Node { + var result ast.Node + + tok := p.next() + + switch tok.Kind { + case lexer.TokenBoolean: + // BOOLEAN + p.shift() + result = ast.NewBooleanLiteral(tok.Pos, tok.Line, (tok.Val == "true"), tok.Val) + case lexer.TokenNumber: + // NUMBER + p.shift() + + val, isInt := parseNumber(tok) + result = ast.NewNumberLiteral(tok.Pos, tok.Line, val, isInt, tok.Val) + case lexer.TokenString: + // STRING + p.shift() + result = ast.NewStringLiteral(tok.Pos, tok.Line, tok.Val) + case lexer.TokenData: + // dataName + result = p.parseDataName() + default: + // path + result = p.parsePath(false) + } + + return result +} + +// parseNumber parses a number +func parseNumber(tok *lexer.Token) (result float64, isInt bool) { + var valInt int + var err error + + valInt, err = strconv.Atoi(tok.Val) + if err == nil { + isInt = true + + result = float64(valInt) + } else { + isInt = false + + result, err = strconv.ParseFloat(tok.Val, 64) + if err != nil { + errToken(tok, fmt.Sprintf("Failed to parse number: %s", tok.Val)) + } + } + + // named returned values + return +} + +// Returns true if next tokens represent a `helperName` +func (p *parser) isHelperName() bool { + switch p.next().Kind { + case lexer.TokenBoolean, lexer.TokenNumber, lexer.TokenString, lexer.TokenData, lexer.TokenID: + return true + } + + return false +} + +// partialName : helperName | sexpr +func (p *parser) parsePartialName() ast.Node { + return p.parseHelperNameOrSexpr() +} + +// dataName : DATA pathSegments +func (p *parser) parseDataName() *ast.PathExpression { + // DATA + p.shift() + + // pathSegments + return p.parsePath(true) +} + +// path : pathSegments +// pathSegments : pathSegments SEP ID +// | ID +func (p *parser) parsePath(data bool) *ast.PathExpression { + var tok *lexer.Token + + // ID + tok = p.shift() + if tok.Kind != lexer.TokenID { + errExpected(lexer.TokenID, tok) + } + + result := ast.NewPathExpression(tok.Pos, tok.Line, data) + result.Part(tok.Val) + + for p.isPathSep() { + // SEP + tok = p.shift() + result.Sep(tok.Val) + + // ID + tok = p.shift() + if tok.Kind != lexer.TokenID { + errExpected(lexer.TokenID, tok) + } + + result.Part(tok.Val) + + if len(result.Parts) > 0 { + switch tok.Val { + case "..", ".", "this": + errToken(tok, "Invalid path: "+result.Original) + } + } + } + + return result +} + +// Ensures there is token to parse at given index +func (p *parser) ensure(index int) { + if p.lexOver { + // nothing more to grab + return + } + + nb := index + 1 + + for len(p.tokens) < nb { + // fetch next token + tok := p.lex.NextToken() + + // queue it + p.tokens = append(p.tokens, &tok) + + if (tok.Kind == lexer.TokenEOF) || (tok.Kind == lexer.TokenError) { + p.lexOver = true + break + } + } +} + +// have returns true is there are a list given number of tokens to consume left +func (p *parser) have(nb int) bool { + p.ensure(nb - 1) + + return len(p.tokens) >= nb +} + +// nextAt returns next token at given index, without consuming it +func (p *parser) nextAt(index int) *lexer.Token { + p.ensure(index) + + return p.tokens[index] +} + +// next returns next token without consuming it +func (p *parser) next() *lexer.Token { + return p.nextAt(0) +} + +// shift returns next token and remove it from the tokens buffer +// +// Panics if next token is `TokenError` +func (p *parser) shift() *lexer.Token { + var result *lexer.Token + + p.ensure(0) + + result, p.tokens = p.tokens[0], p.tokens[1:] + + // check error token + if result.Kind == lexer.TokenError { + errToken(result, "Lexer error") + } + + return result +} + +// isToken returns true if next token is of given type +func (p *parser) isToken(kind lexer.TokenKind) bool { + return p.have(1) && p.next().Kind == kind +} + +// isSexpr returns true if next token starts a sexpr +func (p *parser) isSexpr() bool { + return p.isToken(lexer.TokenOpenSexpr) +} + +// isPathSep returns true if next token is a path separator +func (p *parser) isPathSep() bool { + return p.isToken(lexer.TokenSep) +} + +// isID returns true if next token is an ID +func (p *parser) isID() bool { + return p.isToken(lexer.TokenID) +} + +// isBlockParams returns true if next token starts a block params +func (p *parser) isBlockParams() bool { + return p.isToken(lexer.TokenOpenBlockParams) +} + +// isInverse returns true if next token starts an INVERSE sequence +func (p *parser) isInverse() bool { + return p.isToken(lexer.TokenInverse) +} + +// isOpenInverseChain returns true if next token is OPEN_INVERSE_CHAIN +func (p *parser) isOpenInverseChain() bool { + return p.isToken(lexer.TokenOpenInverseChain) +} diff --git a/vendor/github.com/aymerick/raymond/parser/whitespace.go b/vendor/github.com/aymerick/raymond/parser/whitespace.go new file mode 100644 index 0000000..8f8c2c4 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/parser/whitespace.go @@ -0,0 +1,360 @@ +package parser + +import ( + "regexp" + + "github.com/aymerick/raymond/ast" +) + +// whitespaceVisitor walks through the AST to perform whitespace control +// +// The logic was shamelessly borrowed from: +// https://github.com/wycats/handlebars.js/blob/master/lib/handlebars/compiler/whitespace-control.js +type whitespaceVisitor struct { + isRootSeen bool +} + +var ( + rTrimLeft = regexp.MustCompile(`^[ \t]*\r?\n?`) + rTrimLeftMultiple = regexp.MustCompile(`^\s+`) + + rTrimRight = regexp.MustCompile(`[ \t]+$`) + rTrimRightMultiple = regexp.MustCompile(`\s+$`) + + rPrevWhitespace = regexp.MustCompile(`\r?\n\s*?$`) + rPrevWhitespaceStart = regexp.MustCompile(`(^|\r?\n)\s*?$`) + + rNextWhitespace = regexp.MustCompile(`^\s*?\r?\n`) + rNextWhitespaceEnd = regexp.MustCompile(`^\s*?(\r?\n|$)`) + + rPartialIndent = regexp.MustCompile(`([ \t]+$)`) +) + +// newWhitespaceVisitor instanciates a new whitespaceVisitor +func newWhitespaceVisitor() *whitespaceVisitor { + return &whitespaceVisitor{} +} + +// processWhitespaces performs whitespace control on given AST +// +// WARNING: It must be called only once on AST. +func processWhitespaces(node ast.Node) { + node.Accept(newWhitespaceVisitor()) +} + +func omitRightFirst(body []ast.Node, multiple bool) { + omitRight(body, -1, multiple) +} + +func omitRight(body []ast.Node, i int, multiple bool) { + if i+1 >= len(body) { + return + } + + current := body[i+1] + + node, ok := current.(*ast.ContentStatement) + if !ok { + return + } + + if !multiple && node.RightStripped { + return + } + + original := node.Value + + r := rTrimLeft + if multiple { + r = rTrimLeftMultiple + } + + node.Value = r.ReplaceAllString(node.Value, "") + + node.RightStripped = (original != node.Value) +} + +func omitLeftLast(body []ast.Node, multiple bool) { + omitLeft(body, len(body), multiple) +} + +func omitLeft(body []ast.Node, i int, multiple bool) bool { + if i-1 < 0 { + return false + } + + current := body[i-1] + + node, ok := current.(*ast.ContentStatement) + if !ok { + return false + } + + if !multiple && node.LeftStripped { + return false + } + + original := node.Value + + r := rTrimRight + if multiple { + r = rTrimRightMultiple + } + + node.Value = r.ReplaceAllString(node.Value, "") + + node.LeftStripped = (original != node.Value) + + return node.LeftStripped +} + +func isPrevWhitespace(body []ast.Node) bool { + return isPrevWhitespaceProgram(body, len(body), false) +} + +func isPrevWhitespaceProgram(body []ast.Node, i int, isRoot bool) bool { + if i < 1 { + return isRoot + } + + prev := body[i-1] + + if node, ok := prev.(*ast.ContentStatement); ok { + if (node.Value == "") && node.RightStripped { + // already stripped, so it may be an empty string not catched by regexp + return true + } + + r := rPrevWhitespaceStart + if (i > 1) || !isRoot { + r = rPrevWhitespace + } + + return r.MatchString(node.Value) + } + + return false +} + +func isNextWhitespace(body []ast.Node) bool { + return isNextWhitespaceProgram(body, -1, false) +} + +func isNextWhitespaceProgram(body []ast.Node, i int, isRoot bool) bool { + if i+1 >= len(body) { + return isRoot + } + + next := body[i+1] + + if node, ok := next.(*ast.ContentStatement); ok { + if (node.Value == "") && node.LeftStripped { + // already stripped, so it may be an empty string not catched by regexp + return true + } + + r := rNextWhitespaceEnd + if (i+2 > len(body)) || !isRoot { + r = rNextWhitespace + } + + return r.MatchString(node.Value) + } + + return false +} + +// +// Visitor interface +// + +func (v *whitespaceVisitor) VisitProgram(program *ast.Program) interface{} { + isRoot := !v.isRootSeen + v.isRootSeen = true + + body := program.Body + for i, current := range body { + strip, _ := current.Accept(v).(*ast.Strip) + if strip == nil { + continue + } + + _isPrevWhitespace := isPrevWhitespaceProgram(body, i, isRoot) + _isNextWhitespace := isNextWhitespaceProgram(body, i, isRoot) + + openStandalone := strip.OpenStandalone && _isPrevWhitespace + closeStandalone := strip.CloseStandalone && _isNextWhitespace + inlineStandalone := strip.InlineStandalone && _isPrevWhitespace && _isNextWhitespace + + if strip.Close { + omitRight(body, i, true) + } + + if strip.Open && (i > 0) { + omitLeft(body, i, true) + } + + if inlineStandalone { + omitRight(body, i, false) + + if omitLeft(body, i, false) { + // If we are on a standalone node, save the indent info for partials + if partial, ok := current.(*ast.PartialStatement); ok { + // Pull out the whitespace from the final line + if i > 0 { + if prevContent, ok := body[i-1].(*ast.ContentStatement); ok { + partial.Indent = rPartialIndent.FindString(prevContent.Original) + } + } + } + } + } + + if b, ok := current.(*ast.BlockStatement); ok { + if openStandalone { + prog := b.Program + if prog == nil { + prog = b.Inverse + } + + omitRightFirst(prog.Body, false) + + // Strip out the previous content node if it's whitespace only + omitLeft(body, i, false) + } + + if closeStandalone { + prog := b.Inverse + if prog == nil { + prog = b.Program + } + + // Always strip the next node + omitRight(body, i, false) + + omitLeftLast(prog.Body, false) + } + + } + } + + return nil +} + +func (v *whitespaceVisitor) VisitBlock(block *ast.BlockStatement) interface{} { + if block.Program != nil { + block.Program.Accept(v) + } + + if block.Inverse != nil { + block.Inverse.Accept(v) + } + + program := block.Program + inverse := block.Inverse + + if program == nil { + program = inverse + inverse = nil + } + + firstInverse := inverse + lastInverse := inverse + + if (inverse != nil) && inverse.Chained { + b, _ := inverse.Body[0].(*ast.BlockStatement) + firstInverse = b.Program + + for lastInverse.Chained { + b, _ := lastInverse.Body[len(lastInverse.Body)-1].(*ast.BlockStatement) + lastInverse = b.Program + } + } + + closeProg := firstInverse + if closeProg == nil { + closeProg = program + } + + strip := &ast.Strip{ + Open: (block.OpenStrip != nil) && block.OpenStrip.Open, + Close: (block.CloseStrip != nil) && block.CloseStrip.Close, + + OpenStandalone: isNextWhitespace(program.Body), + CloseStandalone: isPrevWhitespace(closeProg.Body), + } + + if (block.OpenStrip != nil) && block.OpenStrip.Close { + omitRightFirst(program.Body, true) + } + + if inverse != nil { + if block.InverseStrip != nil { + inverseStrip := block.InverseStrip + + if inverseStrip.Open { + omitLeftLast(program.Body, true) + } + + if inverseStrip.Close { + omitRightFirst(firstInverse.Body, true) + } + } + + if (block.CloseStrip != nil) && block.CloseStrip.Open { + omitLeftLast(lastInverse.Body, true) + } + + // Find standalone else statements + if isPrevWhitespace(program.Body) && isNextWhitespace(firstInverse.Body) { + omitLeftLast(program.Body, false) + + omitRightFirst(firstInverse.Body, false) + } + } else if (block.CloseStrip != nil) && block.CloseStrip.Open { + omitLeftLast(program.Body, true) + } + + return strip +} + +func (v *whitespaceVisitor) VisitMustache(mustache *ast.MustacheStatement) interface{} { + return mustache.Strip +} + +func _inlineStandalone(strip *ast.Strip) interface{} { + return &ast.Strip{ + Open: strip.Open, + Close: strip.Close, + InlineStandalone: true, + } +} + +func (v *whitespaceVisitor) VisitPartial(node *ast.PartialStatement) interface{} { + strip := node.Strip + if strip == nil { + strip = &ast.Strip{} + } + + return _inlineStandalone(strip) +} + +func (v *whitespaceVisitor) VisitComment(node *ast.CommentStatement) interface{} { + strip := node.Strip + if strip == nil { + strip = &ast.Strip{} + } + + return _inlineStandalone(strip) +} + +// NOOP +func (v *whitespaceVisitor) VisitContent(node *ast.ContentStatement) interface{} { return nil } +func (v *whitespaceVisitor) VisitExpression(node *ast.Expression) interface{} { return nil } +func (v *whitespaceVisitor) VisitSubExpression(node *ast.SubExpression) interface{} { return nil } +func (v *whitespaceVisitor) VisitPath(node *ast.PathExpression) interface{} { return nil } +func (v *whitespaceVisitor) VisitString(node *ast.StringLiteral) interface{} { return nil } +func (v *whitespaceVisitor) VisitBoolean(node *ast.BooleanLiteral) interface{} { return nil } +func (v *whitespaceVisitor) VisitNumber(node *ast.NumberLiteral) interface{} { return nil } +func (v *whitespaceVisitor) VisitHash(node *ast.Hash) interface{} { return nil } +func (v *whitespaceVisitor) VisitHashPair(node *ast.HashPair) interface{} { return nil } diff --git a/vendor/github.com/aymerick/raymond/partial.go b/vendor/github.com/aymerick/raymond/partial.go new file mode 100644 index 0000000..3299d02 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/partial.go @@ -0,0 +1,85 @@ +package raymond + +import ( + "fmt" + "sync" +) + +// partial represents a partial template +type partial struct { + name string + source string + tpl *Template +} + +// partials stores all global partials +var partials map[string]*partial + +// protects global partials +var partialsMutex sync.RWMutex + +func init() { + partials = make(map[string]*partial) +} + +// newPartial instanciates a new partial +func newPartial(name string, source string, tpl *Template) *partial { + return &partial{ + name: name, + source: source, + tpl: tpl, + } +} + +// RegisterPartial registers a global partial. That partial will be available to all templates. +func RegisterPartial(name string, source string) { + partialsMutex.Lock() + defer partialsMutex.Unlock() + + if partials[name] != nil { + panic(fmt.Errorf("Partial already registered: %s", name)) + } + + partials[name] = newPartial(name, source, nil) +} + +// RegisterPartials registers several global partials. Those partials will be available to all templates. +func RegisterPartials(partials map[string]string) { + for name, p := range partials { + RegisterPartial(name, p) + } +} + +// RegisterPartialTemplate registers a global partial with given parsed template. That partial will be available to all templates. +func RegisterPartialTemplate(name string, tpl *Template) { + partialsMutex.Lock() + defer partialsMutex.Unlock() + + if partials[name] != nil { + panic(fmt.Errorf("Partial already registered: %s", name)) + } + + partials[name] = newPartial(name, "", tpl) +} + +// findPartial finds a registered global partial +func findPartial(name string) *partial { + partialsMutex.RLock() + defer partialsMutex.RUnlock() + + return partials[name] +} + +// template returns parsed partial template +func (p *partial) template() (*Template, error) { + if p.tpl == nil { + var err error + + p.tpl, err = Parse(p.source) + if err != nil { + return nil, err + } + } + + return p.tpl, nil +} diff --git a/vendor/github.com/aymerick/raymond/raymond.go b/vendor/github.com/aymerick/raymond/raymond.go new file mode 100644 index 0000000..c6df6b3 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/raymond.go @@ -0,0 +1,28 @@ +// Package raymond provides handlebars evaluation +package raymond + +// Render parses a template and evaluates it with given context +// +// Note that this function call is not optimal as your template is parsed everytime you call it. You should use Parse() function instead. +func Render(source string, ctx interface{}) (string, error) { + // parse template + tpl, err := Parse(source) + if err != nil { + return "", err + } + + // renders template + str, err := tpl.Exec(ctx) + if err != nil { + return "", err + } + + return str, nil +} + +// MustRender parses a template and evaluates it with given context. It panics on error. +// +// Note that this function call is not optimal as your template is parsed everytime you call it. You should use Parse() function instead. +func MustRender(source string, ctx interface{}) string { + return MustParse(source).MustExec(ctx) +} diff --git a/vendor/github.com/aymerick/raymond/raymond.png b/vendor/github.com/aymerick/raymond/raymond.png new file mode 100644 index 0000000..6a7c942 Binary files /dev/null and b/vendor/github.com/aymerick/raymond/raymond.png differ diff --git a/vendor/github.com/aymerick/raymond/string.go b/vendor/github.com/aymerick/raymond/string.go new file mode 100644 index 0000000..7194769 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/string.go @@ -0,0 +1,84 @@ +package raymond + +import ( + "fmt" + "reflect" + "strconv" +) + +// SafeString represents a string that must not be escaped. +// +// A SafeString can be returned by helpers to disable escaping. +type SafeString string + +// isSafeString returns true if argument is a SafeString +func isSafeString(value interface{}) bool { + if _, ok := value.(SafeString); ok { + return true + } + return false +} + +// Str returns string representation of any basic type value. +func Str(value interface{}) string { + return strValue(reflect.ValueOf(value)) +} + +// strValue returns string representation of a reflect.Value +func strValue(value reflect.Value) string { + result := "" + + ival, ok := printableValue(value) + if !ok { + panic(fmt.Errorf("Can't print value: %q", value)) + } + + val := reflect.ValueOf(ival) + + switch val.Kind() { + case reflect.Array, reflect.Slice: + for i := 0; i < val.Len(); i++ { + result += strValue(val.Index(i)) + } + case reflect.Bool: + result = "false" + if val.Bool() { + result = "true" + } + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + result = fmt.Sprintf("%d", ival) + case reflect.Float32, reflect.Float64: + result = strconv.FormatFloat(val.Float(), 'f', -1, 64) + case reflect.Invalid: + result = "" + default: + result = fmt.Sprintf("%s", ival) + } + + return result +} + +// printableValue returns the, possibly indirected, interface value inside v that +// is best for a call to formatted printer. +// +// NOTE: borrowed from https://github.com/golang/go/tree/master/src/text/template/exec.go +func printableValue(v reflect.Value) (interface{}, bool) { + if v.Kind() == reflect.Ptr { + v, _ = indirect(v) // fmt.Fprint handles nil. + } + if !v.IsValid() { + return "", true + } + + if !v.Type().Implements(errorType) && !v.Type().Implements(fmtStringerType) { + if v.CanAddr() && (reflect.PtrTo(v.Type()).Implements(errorType) || reflect.PtrTo(v.Type()).Implements(fmtStringerType)) { + v = v.Addr() + } else { + switch v.Kind() { + case reflect.Chan, reflect.Func: + return nil, false + } + } + } + return v.Interface(), true +} diff --git a/vendor/github.com/aymerick/raymond/template.go b/vendor/github.com/aymerick/raymond/template.go new file mode 100644 index 0000000..f16ed2f --- /dev/null +++ b/vendor/github.com/aymerick/raymond/template.go @@ -0,0 +1,248 @@ +package raymond + +import ( + "fmt" + "io/ioutil" + "reflect" + "runtime" + "sync" + + "github.com/aymerick/raymond/ast" + "github.com/aymerick/raymond/parser" +) + +// Template represents a handlebars template. +type Template struct { + source string + program *ast.Program + helpers map[string]reflect.Value + partials map[string]*partial + mutex sync.RWMutex // protects helpers and partials +} + +// newTemplate instanciate a new template without parsing it +func newTemplate(source string) *Template { + return &Template{ + source: source, + helpers: make(map[string]reflect.Value), + partials: make(map[string]*partial), + } +} + +// Parse instanciates a template by parsing given source. +func Parse(source string) (*Template, error) { + tpl := newTemplate(source) + + // parse template + if err := tpl.parse(); err != nil { + return nil, err + } + + return tpl, nil +} + +// MustParse instanciates a template by parsing given source. It panics on error. +func MustParse(source string) *Template { + result, err := Parse(source) + if err != nil { + panic(err) + } + return result +} + +// ParseFile reads given file and returns parsed template. +func ParseFile(filePath string) (*Template, error) { + b, err := ioutil.ReadFile(filePath) + if err != nil { + return nil, err + } + + return Parse(string(b)) +} + +// parse parses the template +// +// It can be called several times, the parsing will be done only once. +func (tpl *Template) parse() error { + if tpl.program == nil { + var err error + + tpl.program, err = parser.Parse(tpl.source) + if err != nil { + return err + } + } + + return nil +} + +// Clone returns a copy of that template. +func (tpl *Template) Clone() *Template { + result := newTemplate(tpl.source) + + result.program = tpl.program + + tpl.mutex.RLock() + defer tpl.mutex.RUnlock() + + for name, helper := range tpl.helpers { + result.RegisterHelper(name, helper.Interface()) + } + + for name, partial := range tpl.partials { + result.addPartial(name, partial.source, partial.tpl) + } + + return result +} + +func (tpl *Template) findHelper(name string) reflect.Value { + tpl.mutex.RLock() + defer tpl.mutex.RUnlock() + + return tpl.helpers[name] +} + +// RegisterHelper registers a helper for that template. +func (tpl *Template) RegisterHelper(name string, helper interface{}) { + tpl.mutex.Lock() + defer tpl.mutex.Unlock() + + if tpl.helpers[name] != zero { + panic(fmt.Sprintf("Helper %s already registered", name)) + } + + val := reflect.ValueOf(helper) + ensureValidHelper(name, val) + + tpl.helpers[name] = val +} + +// RegisterHelpers registers several helpers for that template. +func (tpl *Template) RegisterHelpers(helpers map[string]interface{}) { + for name, helper := range helpers { + tpl.RegisterHelper(name, helper) + } +} + +func (tpl *Template) addPartial(name string, source string, template *Template) { + tpl.mutex.Lock() + defer tpl.mutex.Unlock() + + if tpl.partials[name] != nil { + panic(fmt.Sprintf("Partial %s already registered", name)) + } + + tpl.partials[name] = newPartial(name, source, template) +} + +func (tpl *Template) findPartial(name string) *partial { + tpl.mutex.RLock() + defer tpl.mutex.RUnlock() + + return tpl.partials[name] +} + +// RegisterPartial registers a partial for that template. +func (tpl *Template) RegisterPartial(name string, source string) { + tpl.addPartial(name, source, nil) +} + +// RegisterPartials registers several partials for that template. +func (tpl *Template) RegisterPartials(partials map[string]string) { + for name, partial := range partials { + tpl.RegisterPartial(name, partial) + } +} + +// RegisterPartialFile reads given file and registers its content as a partial with given name. +func (tpl *Template) RegisterPartialFile(filePath string, name string) error { + b, err := ioutil.ReadFile(filePath) + if err != nil { + return err + } + + tpl.RegisterPartial(name, string(b)) + + return nil +} + +// RegisterPartialFiles reads several files and registers them as partials, the filename base is used as the partial name. +func (tpl *Template) RegisterPartialFiles(filePaths ...string) error { + if len(filePaths) == 0 { + return nil + } + + for _, filePath := range filePaths { + name := fileBase(filePath) + + if err := tpl.RegisterPartialFile(filePath, name); err != nil { + return err + } + } + + return nil +} + +// RegisterPartialTemplate registers an already parsed partial for that template. +func (tpl *Template) RegisterPartialTemplate(name string, template *Template) { + tpl.addPartial(name, "", template) +} + +// Exec evaluates template with given context. +func (tpl *Template) Exec(ctx interface{}) (result string, err error) { + return tpl.ExecWith(ctx, nil) +} + +// MustExec evaluates template with given context. It panics on error. +func (tpl *Template) MustExec(ctx interface{}) string { + result, err := tpl.Exec(ctx) + if err != nil { + panic(err) + } + return result +} + +// ExecWith evaluates template with given context and private data frame. +func (tpl *Template) ExecWith(ctx interface{}, privData *DataFrame) (result string, err error) { + defer errRecover(&err) + + // parses template if necessary + err = tpl.parse() + if err != nil { + return + } + + // setup visitor + v := newEvalVisitor(tpl, ctx, privData) + + // visit AST + result, _ = tpl.program.Accept(v).(string) + + // named return values + return +} + +// errRecover recovers evaluation panic +func errRecover(errp *error) { + e := recover() + if e != nil { + switch err := e.(type) { + case runtime.Error: + panic(e) + case error: + *errp = err + default: + panic(e) + } + } +} + +// PrintAST returns string representation of parsed template. +func (tpl *Template) PrintAST() string { + if err := tpl.parse(); err != nil { + return fmt.Sprintf("PARSER ERROR: %s", err) + } + + return ast.Print(tpl.program) +} diff --git a/vendor/github.com/aymerick/raymond/utils.go b/vendor/github.com/aymerick/raymond/utils.go new file mode 100644 index 0000000..3deaaf3 --- /dev/null +++ b/vendor/github.com/aymerick/raymond/utils.go @@ -0,0 +1,85 @@ +package raymond + +import ( + "path" + "reflect" +) + +// indirect returns the item at the end of indirection, and a bool to indicate if it's nil. +// We indirect through pointers and empty interfaces (only) because +// non-empty interfaces have methods we might need. +// +// NOTE: borrowed from https://github.com/golang/go/tree/master/src/text/template/exec.go +func indirect(v reflect.Value) (rv reflect.Value, isNil bool) { + for ; v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface; v = v.Elem() { + if v.IsNil() { + return v, true + } + if v.Kind() == reflect.Interface && v.NumMethod() > 0 { + break + } + } + return v, false +} + +// IsTrue returns true if obj is a truthy value. +func IsTrue(obj interface{}) bool { + thruth, ok := isTrueValue(reflect.ValueOf(obj)) + if !ok { + return false + } + return thruth +} + +// isTrueValue reports whether the value is 'true', in the sense of not the zero of its type, +// and whether the value has a meaningful truth value +// +// NOTE: borrowed from https://github.com/golang/go/tree/master/src/text/template/exec.go +func isTrueValue(val reflect.Value) (truth, ok bool) { + if !val.IsValid() { + // Something like var x interface{}, never set. It's a form of nil. + return false, true + } + switch val.Kind() { + case reflect.Array, reflect.Map, reflect.Slice, reflect.String: + truth = val.Len() > 0 + case reflect.Bool: + truth = val.Bool() + case reflect.Complex64, reflect.Complex128: + truth = val.Complex() != 0 + case reflect.Chan, reflect.Func, reflect.Ptr, reflect.Interface: + truth = !val.IsNil() + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + truth = val.Int() != 0 + case reflect.Float32, reflect.Float64: + truth = val.Float() != 0 + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + truth = val.Uint() != 0 + case reflect.Struct: + truth = true // Struct values are always true. + default: + return + } + return truth, true +} + +// canBeNil reports whether an untyped nil can be assigned to the type. See reflect.Zero. +// +// NOTE: borrowed from https://github.com/golang/go/tree/master/src/text/template/exec.go +func canBeNil(typ reflect.Type) bool { + switch typ.Kind() { + case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice: + return true + } + return false +} + +// fileBase returns base file name +// +// example: /foo/bar/baz.png => baz +func fileBase(filePath string) string { + fileName := path.Base(filePath) + fileExt := path.Ext(filePath) + + return fileName[:len(fileName)-len(fileExt)] +} diff --git a/vendor/github.com/drone/drone-go/LICENSE b/vendor/github.com/drone/drone-go/LICENSE new file mode 100644 index 0000000..e06d208 --- /dev/null +++ b/vendor/github.com/drone/drone-go/LICENSE @@ -0,0 +1,202 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + diff --git a/vendor/github.com/drone/drone-go/README.md b/vendor/github.com/drone/drone-go/README.md new file mode 100644 index 0000000..78a5028 --- /dev/null +++ b/vendor/github.com/drone/drone-go/README.md @@ -0,0 +1,50 @@ +# drone-go + +[![Build Status](http://beta.drone.io/api/badges/drone/drone-go/status.svg)](http://beta.drone.io/drone/drone-go) + +drone-go is a Go client library for accessing the Drone [API](http://readme.drone.io/devs/api/builds/) and writing [plugins](http://readme.drone.io/plugins/). + +Download the package using `go get`: + +```Go +go get "github.com/drone/drone-go/drone" +go get "github.com/drone/drone-go/plugin" +``` + +Import the package: + +```Go +import "github.com/drone/drone-go/drone" +``` + +Create the client: + +```Go +const ( + token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9" + host = "http://drone.company.com" +) + +client := drone.NewClientToken(host, token) +``` + +Get the current user: + +```Go +user, err := client.Self() +fmt.Println(user) +``` + +Get the repository list: + +```Go +repos, err := client.RepoList() +fmt.Println(repos) +``` + +Get the named repository: + +```Go +repo, err := client.Repo("drone", "drone-go") +fmt.Println(repo) +``` diff --git a/vendor/github.com/drone/drone-go/drone/client.go b/vendor/github.com/drone/drone-go/drone/client.go new file mode 100644 index 0000000..cd6aae8 --- /dev/null +++ b/vendor/github.com/drone/drone-go/drone/client.go @@ -0,0 +1,404 @@ +package drone + +//go:generate mockery -all +//go:generate mv mocks/Client.go mocks/client.go + +import ( + "bytes" + "crypto/tls" + "encoding/json" + "fmt" + "io" + "io/ioutil" + "net/http" + "net/url" + + "golang.org/x/oauth2" +) + +const ( + pathSelf = "%s/api/user" + pathFeed = "%s/api/user/feed" + pathRepos = "%s/api/user/repos" + pathRepo = "%s/api/repos/%s/%s" + pathEncrypt = "%s/api/repos/%s/%s/encrypt" + pathBuilds = "%s/api/repos/%s/%s/builds" + pathBuild = "%s/api/repos/%s/%s/builds/%v" + pathJob = "%s/api/repos/%s/%s/builds/%d/%d" + pathLog = "%s/api/repos/%s/%s/logs/%d/%d" + pathKey = "%s/api/repos/%s/%s/key" + pathSign = "%s/api/repos/%s/%s/sign" + pathSecrets = "%s/api/repos/%s/%s/secrets" + pathSecret = "%s/api/repos/%s/%s/secrets/%s" + pathNodes = "%s/api/nodes" + pathNode = "%s/api/nodes/%d" + pathUsers = "%s/api/users" + pathUser = "%s/api/users/%s" +) + +type client struct { + client *http.Client + base string // base url +} + +// NewClient returns a client at the specified url. +func NewClient(uri string) Client { + return &client{http.DefaultClient, uri} +} + +// NewClientToken returns a client at the specified url that +// authenticates all outbound requests with the given token. +func NewClientToken(uri, token string) Client { + config := new(oauth2.Config) + auther := config.Client(oauth2.NoContext, &oauth2.Token{AccessToken: token}) + return &client{auther, uri} +} + +// NewClientTokenTLS returns a client at the specified url that +// authenticates all outbound requests with the given token and +// tls.Config if provided. +func NewClientTokenTLS(uri, token string, c *tls.Config) Client { + config := new(oauth2.Config) + auther := config.Client(oauth2.NoContext, &oauth2.Token{AccessToken: token}) + if c != nil { + auther.Transport.(*oauth2.Transport).Base = &http.Transport{TLSClientConfig: c} + } + return &client{auther, uri} +} + +// SetClient sets the default http client. This should be +// used in conjunction with golang.org/x/oauth2 to +// authenticate requests to the Drone server. +func (c *client) SetClient(client *http.Client) { + c.client = client +} + +// Self returns the currently authenticated user. +func (c *client) Self() (*User, error) { + out := new(User) + uri := fmt.Sprintf(pathSelf, c.base) + err := c.get(uri, out) + return out, err +} + +// User returns a user by login. +func (c *client) User(login string) (*User, error) { + out := new(User) + uri := fmt.Sprintf(pathUser, c.base, login) + err := c.get(uri, out) + return out, err +} + +// UserList returns a list of all registered users. +func (c *client) UserList() ([]*User, error) { + var out []*User + uri := fmt.Sprintf(pathUsers, c.base) + err := c.get(uri, &out) + return out, err +} + +// UserPost creates a new user account. +func (c *client) UserPost(in *User) (*User, error) { + out := new(User) + uri := fmt.Sprintf(pathUsers, c.base) + err := c.post(uri, in, out) + return out, err +} + +// UserPatch updates a user account. +func (c *client) UserPatch(in *User) (*User, error) { + out := new(User) + uri := fmt.Sprintf(pathUser, c.base, in.Login) + err := c.patch(uri, in, out) + return out, err +} + +// UserDel deletes a user account. +func (c *client) UserDel(login string) error { + uri := fmt.Sprintf(pathUser, c.base, login) + err := c.delete(uri) + return err +} + +// UserFeed returns the user's activity feed. +func (c *client) UserFeed() ([]*Activity, error) { + var out []*Activity + uri := fmt.Sprintf(pathFeed, c.base) + err := c.get(uri, &out) + return out, err +} + +// Repo returns a repository by name. +func (c *client) Repo(owner string, name string) (*Repo, error) { + out := new(Repo) + uri := fmt.Sprintf(pathRepo, c.base, owner, name) + err := c.get(uri, out) + return out, err +} + +// RepoList returns a list of all repositories to which +// the user has explicit access in the host system. +func (c *client) RepoList() ([]*Repo, error) { + var out []*Repo + uri := fmt.Sprintf(pathRepos, c.base) + err := c.get(uri, &out) + return out, err +} + +// RepoPost activates a repository. +func (c *client) RepoPost(owner string, name string) (*Repo, error) { + out := new(Repo) + uri := fmt.Sprintf(pathRepo, c.base, owner, name) + err := c.post(uri, nil, out) + return out, err +} + +// RepoPatch updates a repository. +func (c *client) RepoPatch(in *Repo) (*Repo, error) { + out := new(Repo) + uri := fmt.Sprintf(pathRepo, c.base, in.Owner, in.Name) + err := c.patch(uri, in, out) + return out, err +} + +// RepoDel deletes a repository. +func (c *client) RepoDel(owner, name string) error { + uri := fmt.Sprintf(pathRepo, c.base, owner, name) + err := c.delete(uri) + return err +} + +// RepoKey returns a repository public key. +func (c *client) RepoKey(owner, name string) (*Key, error) { + out := new(Key) + uri := fmt.Sprintf(pathKey, c.base, owner, name) + rc, err := c.stream(uri, "GET", nil, nil) + if err != nil { + return nil, err + } + defer rc.Close() + raw, _ := ioutil.ReadAll(rc) + out.Public = string(raw) + return out, err +} + +// Build returns a repository build by number. +func (c *client) Build(owner, name string, num int) (*Build, error) { + out := new(Build) + uri := fmt.Sprintf(pathBuild, c.base, owner, name, num) + err := c.get(uri, out) + return out, err +} + +// Build returns the latest repository build by branch. +func (c *client) BuildLast(owner, name, branch string) (*Build, error) { + out := new(Build) + uri := fmt.Sprintf(pathBuild, c.base, owner, name, "latest") + if len(branch) != 0 { + uri += "?branch=" + branch + } + err := c.get(uri, out) + return out, err +} + +// BuildList returns a list of recent builds for the +// the specified repository. +func (c *client) BuildList(owner, name string) ([]*Build, error) { + var out []*Build + uri := fmt.Sprintf(pathBuilds, c.base, owner, name) + err := c.get(uri, &out) + return out, err +} + +// BuildStart re-starts a stopped build. +func (c *client) BuildStart(owner, name string, num int) (*Build, error) { + out := new(Build) + uri := fmt.Sprintf(pathBuild, c.base, owner, name, num) + err := c.post(uri, nil, out) + return out, err +} + +// BuildStop cancels the running job. +func (c *client) BuildStop(owner, name string, num, job int) error { + uri := fmt.Sprintf(pathJob, c.base, owner, name, num, job) + err := c.delete(uri) + return err +} + +// BuildFork re-starts a stopped build with a new build number, +// preserving the prior history. +func (c *client) BuildFork(owner, name string, num int) (*Build, error) { + out := new(Build) + uri := fmt.Sprintf(pathBuild+"?fork=true", c.base, owner, name, num) + err := c.post(uri, nil, out) + return out, err +} + +// BuildLogs returns the build logs for the specified job. +func (c *client) BuildLogs(owner, name string, num, job int) (io.ReadCloser, error) { + uri := fmt.Sprintf(pathLog, c.base, owner, name, num, job) + return c.stream(uri, "GET", nil, nil) +} + +// Deploy triggers a deployment for an existing build using the +// specified target environment. +func (c *client) Deploy(owner, name string, num int, env string) (*Build, error) { + out := new(Build) + val := url.Values{} + val.Set("fork", "true") + val.Set("event", "deployment") + val.Set("deploy_to", env) + uri := fmt.Sprintf(pathBuild+"?"+val.Encode(), c.base, owner, name, num) + err := c.post(uri, nil, out) + return out, err +} + +// SecretPost create or updates a repository secret. +func (c *client) SecretPost(owner, name string, secret *Secret) error { + uri := fmt.Sprintf(pathSecrets, c.base, owner, name) + return c.post(uri, secret, nil) +} + +// SecretDel deletes a named repository secret. +func (c *client) SecretDel(owner, name, secret string) error { + uri := fmt.Sprintf(pathSecret, c.base, owner, name, secret) + return c.delete(uri) +} + +// Sign returns a cryptographic signature for the input string. +func (c *client) Sign(owner, name string, in []byte) ([]byte, error) { + buf := bytes.Buffer{} + buf.Write(in) + uri := fmt.Sprintf(pathSign, c.base, owner, name) + rc, err := c.stream(uri, "POST", buf, nil) + if err != nil { + return nil, err + } + defer rc.Close() + return ioutil.ReadAll(rc) +} + +// Node returns a node by id. +func (c *client) Node(id int64) (*Node, error) { + out := new(Node) + uri := fmt.Sprintf(pathNode, c.base, id) + err := c.get(uri, out) + return out, err +} + +// NodeList returns a list of all registered worker nodes. +func (c *client) NodeList() ([]*Node, error) { + var out []*Node + uri := fmt.Sprintf(pathNodes, c.base) + err := c.get(uri, &out) + return out, err +} + +// NodePost registers a new worker node. +func (c *client) NodePost(in *Node) (*Node, error) { + out := new(Node) + uri := fmt.Sprintf(pathNodes, c.base) + err := c.post(uri, in, out) + return out, err +} + +// NodeDel deletes a worker node. +func (c *client) NodeDel(id int64) error { + uri := fmt.Sprintf(pathNode, c.base, id) + err := c.delete(uri) + return err +} + +// +// http request helper functions +// + +// helper function for making an http GET request. +func (c *client) get(rawurl string, out interface{}) error { + return c.do(rawurl, "GET", nil, out) +} + +// helper function for making an http POST request. +func (c *client) post(rawurl string, in, out interface{}) error { + return c.do(rawurl, "POST", in, out) +} + +// helper function for making an http PUT request. +func (c *client) put(rawurl string, in, out interface{}) error { + return c.do(rawurl, "PUT", in, out) +} + +// helper function for making an http PATCH request. +func (c *client) patch(rawurl string, in, out interface{}) error { + return c.do(rawurl, "PATCH", in, out) +} + +// helper function for making an http DELETE request. +func (c *client) delete(rawurl string) error { + return c.do(rawurl, "DELETE", nil, nil) +} + +// helper function to make an http request +func (c *client) do(rawurl, method string, in, out interface{}) error { + // executes the http request and returns the body as + // and io.ReadCloser + body, err := c.stream(rawurl, method, in, out) + if err != nil { + return err + } + defer body.Close() + + // if a json response is expected, parse and return + // the json response. + if out != nil { + return json.NewDecoder(body).Decode(out) + } + return nil +} + +// helper function to stream an http request +func (c *client) stream(rawurl, method string, in, out interface{}) (io.ReadCloser, error) { + uri, err := url.Parse(rawurl) + if err != nil { + return nil, err + } + + // if we are posting or putting data, we need to + // write it to the body of the request. + var buf io.ReadWriter + if in == nil { + // nothing + } else if rw, ok := in.(io.ReadWriter); ok { + buf = rw + } else { + buf = new(bytes.Buffer) + err := json.NewEncoder(buf).Encode(in) + if err != nil { + return nil, err + } + } + + // creates a new http request to bitbucket. + req, err := http.NewRequest(method, uri.String(), buf) + if err != nil { + return nil, err + } + if in == nil { + // nothing + } else if _, ok := in.(io.ReadWriter); ok { + req.Header.Set("Content-Type", "plain/text") + } else { + req.Header.Set("Content-Type", "application/json") + } + + resp, err := c.client.Do(req) + if err != nil { + return nil, err + } + if resp.StatusCode > http.StatusPartialContent { + defer resp.Body.Close() + out, _ := ioutil.ReadAll(resp.Body) + return nil, fmt.Errorf(string(out)) + } + return resp.Body, nil +} diff --git a/vendor/github.com/drone/drone-go/drone/const.go b/vendor/github.com/drone/drone-go/drone/const.go new file mode 100644 index 0000000..fd8f902 --- /dev/null +++ b/vendor/github.com/drone/drone-go/drone/const.go @@ -0,0 +1,48 @@ +package drone + +// Events +const ( + EventPush = "push" + EventPull = "pull_request" + EventTag = "tag" + EventDeploy = "deployment" +) + +// Statuses +const ( + StatusSkipped = "skipped" + StatusPending = "pending" + StatusRunning = "running" + StatusSuccess = "success" + StatusFailure = "failure" + StatusKilled = "killed" + StatusError = "error" +) + +// Architectures +const ( + Freebsd_386 uint = iota + Freebsd_amd64 + Freebsd_arm + Linux_386 + Linux_amd64 + Linux_arm + Linux_arm64 + Solaris_amd64 + Windows_386 + Windows_amd64 +) + +// Architecture Map +var Archs = map[string]uint{ + "freebsd_386": Freebsd_386, + "freebsd_amd64": Freebsd_amd64, + "freebsd_arm": Freebsd_arm, + "linux_386": Linux_386, + "linux_amd64": Linux_amd64, + "linux_arm": Linux_arm, + "linux_arm64": Linux_arm64, + "solaris_amd64": Solaris_amd64, + "windows_386": Windows_386, + "windows_amd64": Windows_amd64, +} diff --git a/vendor/github.com/drone/drone-go/drone/interface.go b/vendor/github.com/drone/drone-go/drone/interface.go new file mode 100644 index 0000000..9a65daf --- /dev/null +++ b/vendor/github.com/drone/drone-go/drone/interface.go @@ -0,0 +1,95 @@ +package drone + +import "io" + +// Client describes a drone client. +type Client interface { + // Self returns the currently authenticated user. + Self() (*User, error) + + // User returns a user by login. + User(string) (*User, error) + + // UserList returns a list of all registered users. + UserList() ([]*User, error) + + // UserPost creates a new user account. + UserPost(*User) (*User, error) + + // UserPatch updates a user account. + UserPatch(*User) (*User, error) + + // UserDel deletes a user account. + UserDel(string) error + + // UserFeed returns the user's activity feed. + UserFeed() ([]*Activity, error) + + // Repo returns a repository by name. + Repo(string, string) (*Repo, error) + + // RepoList returns a list of all repositories to which + // the user has explicit access in the host system. + RepoList() ([]*Repo, error) + + // RepoPost activates a repository. + RepoPost(string, string) (*Repo, error) + + // RepoPatch updates a repository. + RepoPatch(*Repo) (*Repo, error) + + // RepoDel deletes a repository. + RepoDel(string, string) error + + // RepoKey returns a repository public key. + RepoKey(string, string) (*Key, error) + + // Build returns a repository build by number. + Build(string, string, int) (*Build, error) + + // BuildLast returns the latest repository build by branch. + // An empty branch will result in the default branch. + BuildLast(string, string, string) (*Build, error) + + // BuildList returns a list of recent builds for the + // the specified repository. + BuildList(string, string) ([]*Build, error) + + // BuildStart re-starts a stopped build. + BuildStart(string, string, int) (*Build, error) + + // BuildStop stops the specified running job for given build. + BuildStop(string, string, int, int) error + + // BuildFork re-starts a stopped build with a new build number, + // preserving the prior history. + BuildFork(string, string, int) (*Build, error) + + // BuildLogs returns the build logs for the specified job. + BuildLogs(string, string, int, int) (io.ReadCloser, error) + + // Deploy triggers a deployment for an existing build using the + // specified target environment. + Deploy(string, string, int, string) (*Build, error) + + // Sign returns a cryptographic signature for the input string. + Sign(string, string, []byte) ([]byte, error) + + // SecretPost create or updates a repository secret. + SecretPost(string, string, *Secret) error + + // SecretDel deletes a named repository secret. + SecretDel(string, string, string) error + + // Node returns a node by id. + Node(int64) (*Node, error) + + // NodeList returns a list of all registered worker nodes. + NodeList() ([]*Node, error) + + // NodePost registers a new worker node. + NodePost(*Node) (*Node, error) + + // NodeDel deletes a worker node. + NodeDel(int64) error +} diff --git a/vendor/github.com/drone/drone-go/drone/types.go b/vendor/github.com/drone/drone-go/drone/types.go new file mode 100644 index 0000000..5d3a6b6 --- /dev/null +++ b/vendor/github.com/drone/drone-go/drone/types.go @@ -0,0 +1,209 @@ +package drone + +import "encoding/json" + +// User represents a user account. +type User struct { + ID int64 `json:"id"` + Login string `json:"login"` + Email string `json:"email"` + Avatar string `json:"avatar_url"` + Active bool `json:"active"` + Admin bool `json:"admin"` +} + +// Repo represents a version control repository. +type Repo struct { + ID int64 `json:"id"` + Owner string `json:"owner"` + Name string `json:"name"` + FullName string `json:"full_name"` + Avatar string `json:"avatar_url"` + Link string `json:"link_url"` + Clone string `json:"clone_url"` + Branch string `json:"default_branch"` + Timeout int64 `json:"timeout"` + IsPrivate bool `json:"private"` + IsTrusted bool `json:"trusted"` + AllowPull bool `json:"allow_pr"` + AllowPush bool `json:"allow_push"` + AllowDeploy bool `json:"allow_deploys"` + AllowTag bool `json:"allow_tags"` +} + +// Build represents the process of compiling and testing a changeset, +// typically triggered by the remote system (ie GitHub). +type Build struct { + ID int64 `json:"id"` + Number int `json:"number"` + Event string `json:"event"` + Status string `json:"status"` + Enqueued int64 `json:"enqueued_at"` + Created int64 `json:"created_at"` + Started int64 `json:"started_at"` + Finished int64 `json:"finished_at"` + Deploy string `json:"deploy_to"` + Commit string `json:"commit"` + Branch string `json:"branch"` + Ref string `json:"ref"` + Refspec string `json:"refspec"` + Remote string `json:"remote"` + Title string `json:"title"` + Message string `json:"message"` + Timestamp int64 `json:"timestamp"` + Author string `json:"author"` + Avatar string `json:"author_avatar"` + Email string `json:"author_email"` + Link string `json:"link_url"` +} + +// Job represents a single job that is being executed as part +// of a Build. +type Job struct { + ID int64 `json:"id"` + Number int `json:"number"` + Status string `json:"status"` + ExitCode int `json:"exit_code"` + Enqueued int64 `json:"enqueued_at"` + Started int64 `json:"started_at"` + Finished int64 `json:"finished_at"` + + Environment map[string]string `json:"environment"` +} + +// Secret represents a repository secret. +type Secret struct { + ID int64 `json:"id"` + Name string `json:"name"` + Value string `json:"value"` + Image []string `json:"image"` + Event []string `json:"event"` +} + +// Activity represents a build activity. It combines the +// build details with summary Repository information. +type Activity struct { + Owner string `json:"owner"` + Name string `json:"name"` + FullName string `json:"full_name"` + Number int `json:"number"` + Event string `json:"event"` + Status string `json:"status"` + Enqueued int64 `json:"enqueued_at"` + Created int64 `json:"created_at"` + Started int64 `json:"started_at"` + Finished int64 `json:"finished_at"` + Commit string `json:"commit"` + Branch string `json:"branch"` + Ref string `json:"ref"` + Refspec string `json:"refspec"` + Remote string `json:"remote"` + Title string `json:"title"` + Message string `json:"message"` + Timestamp int64 `json:"timestamp"` + Author string `json:"author"` + Avatar string `json:"author_avatar"` + Email string `json:"author_email"` + Link string `json:"link_url"` +} + +// Node represents a local or remote Docker daemon that is +// responsible for running jobs. +type Node struct { + ID int64 `json:"id"` + Addr string `json:"address"` + Arch string `json:"architecture"` + Cert string `json:"cert"` + Key string `json:"key"` + CA string `json:"ca"` +} + +// Key represents an RSA public and private key assigned to a +// repository. It may be used to clone private repositories, or as +// a deployment key. +type Key struct { + Public string `json:"public"` + Private string `json:"private"` +} + +// Netrc defines a default .netrc file that should be injected +// into the build environment. It will be used to authorize access +// to https resources, such as git+https clones. +type Netrc struct { + Machine string `json:"machine"` + Login string `json:"login"` + Password string `json:"password"` +} + +// netrc is only used to allow compatibility with older plugins that rely on +// the JSON "user" attribute as a password value. In Drone 0.6 breaking +// changes will be introduced and this netrc struct and the Netrc UnmarshalJSON +// and MarshalJSON will be removed. +type netrc struct { + Machine string `json:"machine"` + Login string `json:"login"` + Password string `json:"password"` + PasswordOld string `json:"user"` +} + +// UnmarshalJSON implements the json.Unmarshaler interface. +func (n *Netrc) UnmarshalJSON(b []byte) error { + x := &netrc{} + err := json.Unmarshal(b, x) + if err != nil { + return err + } + n.Machine = x.Machine + n.Login = x.Login + n.Password = x.Password + if x.PasswordOld != "" { + n.Password = x.PasswordOld + } + return nil +} + +// MarshalJSON implements the json.Marshaler interface. +func (n Netrc) MarshalJSON() ([]byte, error) { + x := &netrc{ + Machine: n.Machine, + Login: n.Login, + Password: n.Password, + PasswordOld: n.Password, + } + return json.Marshal(x) +} + +// System represents the drone system. +type System struct { + Version string `json:"version"` + Link string `json:"link_url"` + Plugins []string `json:"plugins"` + Globals []string `json:"globals"` + Escalates []string `json:"privileged_plugins"` +} + +// Workspace defines the build's workspace inside the +// container. This helps the plugin locate the source +// code directory. +type Workspace struct { + Root string `json:"root"` + Path string `json:"path"` + + Netrc *Netrc `json:"netrc"` + Keys *Key `json:"keys"` +} + +// Payload defines the full payload send to plugins. +type Payload struct { + Yaml string `json:"config"` + YamlEnc string `json:"secret"` + Repo *Repo `json:"repo"` + Build *Build `json:"build"` + BuildLast *Build `json:"build_last"` + Job *Job `json:"job"` + Netrc *Netrc `json:"netrc"` + Keys *Key `json:"keys"` + System *System `json:"system"` + Workspace *Workspace `json:"workspace"` + Vargs interface{} `json:"vargs"` +} diff --git a/vendor/github.com/drone/drone-go/drone/types_json.go b/vendor/github.com/drone/drone-go/drone/types_json.go new file mode 100644 index 0000000..97fdfab --- /dev/null +++ b/vendor/github.com/drone/drone-go/drone/types_json.go @@ -0,0 +1,127 @@ +package drone + +import ( + "encoding/json" + "strconv" +) + +// StringSlice representes a string or an array of strings. +type StringSlice struct { + parts []string +} + +// UnmarshalJSON unmarshals bytes into a StringSlice. +func (e *StringSlice) UnmarshalJSON(b []byte) error { + if len(b) == 0 { + return nil + } + + p := make([]string, 0, 1) + if err := json.Unmarshal(b, &p); err != nil { + var s string + if err := json.Unmarshal(b, &s); err != nil { + return err + } + p = append(p, s) + } + + e.parts = p + return nil +} + +// Len returns the number of strings in a StringSlice. +func (e *StringSlice) Len() int { + if e == nil { + return 0 + } + return len(e.parts) +} + +// Slice returns the slice of strings in a StringSlice. +func (e *StringSlice) Slice() []string { + if e == nil { + return nil + } + return e.parts +} + +// NewStringSlice takes a slice of strings and returns a StringSlice. +func NewStringSlice(parts []string) StringSlice { + return StringSlice{parts} +} + +// StringMap representes a string or a map of strings. +type StringMap struct { + parts map[string]string +} + +// UnmarshalJSON unmarshals bytes into a StringMap. +func (e *StringMap) UnmarshalJSON(b []byte) error { + if len(b) == 0 { + return nil + } + + p := map[string]string{} + if err := json.Unmarshal(b, &p); err != nil { + var s string + if err := json.Unmarshal(b, &s); err != nil { + return err + } + p[""] = s + } + + e.parts = p + return nil +} + +// Len returns the number of elements in the StringMap. +func (e *StringMap) Len() int { + if e == nil { + return 0 + } + return len(e.parts) +} + +// String satisfies the fmt.Stringer interface. +func (e *StringMap) String() (str string) { + if e == nil { + return + } + for _, val := range e.parts { + return val // returns the first string value + } + return +} + +// Map returns StringMap as a map of string to string. +func (e *StringMap) Map() map[string]string { + if e == nil { + return nil + } + return e.parts +} + +// NewStringMap takes a map of string to string and returns a StringMap. +func NewStringMap(parts map[string]string) StringMap { + return StringMap{parts} +} + +// StringInt representes a string or an integer value. +type StringInt struct { + value string +} + +// UnmarshalJSON unmarshals bytes into a StringInt. +func (e *StringInt) UnmarshalJSON(b []byte) error { + var num int + err := json.Unmarshal(b, &num) + if err == nil { + e.value = strconv.Itoa(num) + return nil + } + return json.Unmarshal(b, &e.value) +} + +func (e StringInt) String() string { + return e.value +} diff --git a/vendor/github.com/drone/drone-go/plugin/plugin.go b/vendor/github.com/drone/drone-go/plugin/plugin.go new file mode 100644 index 0000000..57133fc --- /dev/null +++ b/vendor/github.com/drone/drone-go/plugin/plugin.go @@ -0,0 +1,134 @@ +package plugin + +import ( + "bytes" + "encoding/json" + "fmt" + "io" + "os" +) + +// Standard Input +var Stdin *ParamSet + +func init() { + // defaults to stdin + Stdin = NewParamSet(os.Stdin) + + // check for params after the double dash + // in the command string + for i, argv := range os.Args { + if argv == "--" { + arg := os.Args[i+1] + buf := bytes.NewBufferString(arg) + Stdin = NewParamSet(buf) + break + } + } +} + +// this init function is deprecated, but I'm keeping it +// around just in case it proves useful in the future. +func deprecated_init() { + // if piping from stdin we can just exit + // and use the default Stdin value + stat, _ := os.Stdin.Stat() + if (stat.Mode() & os.ModeCharDevice) == 0 { + return + } + + // check for params after the double dash + // in the command string + for i, argv := range os.Args { + if argv == "--" { + arg := os.Args[i+1] + buf := bytes.NewBufferString(arg) + Stdin = NewParamSet(buf) + return + } + } + + // else use the first variable in the list + if len(os.Args) > 1 { + buf := bytes.NewBufferString(os.Args[1]) + Stdin = NewParamSet(buf) + } +} + +// ParamSet describes a parameter set. +type ParamSet struct { + reader io.Reader + params map[string]interface{} +} + +// NewParamSet takes a io.Reader and returns a ParamSet. +func NewParamSet(reader io.Reader) *ParamSet { + var p = new(ParamSet) + p.reader = reader + p.params = map[string]interface{}{} + return p +} + +// Param defines a parameter with the specified name. +func (p ParamSet) Param(name string, value interface{}) { + p.params[name] = value +} + +// Parse parses parameter definitions from the map. +func (p ParamSet) Parse() error { + raw := map[string]json.RawMessage{} + err := json.NewDecoder(p.reader).Decode(&raw) + if err != nil { + return err + } + + for key, val := range p.params { + data, ok := raw[key] + if !ok { + continue + } + err := json.Unmarshal(data, val) + if err != nil { + return fmt.Errorf("Unable to unarmshal %s. %s", key, err) + } + } + + return nil +} + +// Unmarshal parses the JSON payload from the command +// arguments and unmarshal into a value pointed to by v. +func (p ParamSet) Unmarshal(v interface{}) error { + return json.NewDecoder(p.reader).Decode(v) +} + +// Param defines a parameter with the specified name. +func Param(name string, value interface{}) { + Stdin.Param(name, value) +} + +// Parse parses parameter definitions from the map. +func Parse() error { + return Stdin.Parse() +} + +// Unmarshal parses the JSON payload from the command +// arguments and unmarshal into a value pointed to by v. +func Unmarshal(v interface{}) error { + return Stdin.Unmarshal(v) +} + +// MustUnmarshal parses the JSON payload from the command +// arguments and unmarshal into a value pointed to by v. +func MustUnmarshal(v interface{}) error { + return Stdin.Unmarshal(v) +} + +// MustParse parses parameter definitions from the map +// and panics if there is a parsing error. +func MustParse() { + err := Parse() + if err != nil { + panic(err) + } +} diff --git a/vendor/github.com/drone/drone-go/template/template.go b/vendor/github.com/drone/drone-go/template/template.go new file mode 100644 index 0000000..71b6767 --- /dev/null +++ b/vendor/github.com/drone/drone-go/template/template.go @@ -0,0 +1,163 @@ +package template + +import ( + "encoding/json" + "fmt" + "io" + "io/ioutil" + "net/http" + "strings" + "time" + "unicode" + "unicode/utf8" + + "github.com/aymerick/raymond" + "github.com/drone/drone-go/drone" + "net/url" +) + +func init() { + raymond.RegisterHelpers(funcs) +} + +// Render parses and executes a template, returning the results +// in string format. +func Render(template string, payload *drone.Payload) (string, error) { + if strings.HasPrefix(template, "http") { + resp, err := http.Get(template) + + if err != nil { + return "", fmt.Errorf("Failed to fetch remote template: %s", err) + } + + defer resp.Body.Close() + + content, err := ioutil.ReadAll(resp.Body) + + if err != nil { + return "", fmt.Errorf("Failed to read remote template: %s", err) + } + + template = string(content) + } + + return raymond.Render(template, normalize(payload)) +} + +// RenderTrim parses and executes a template, returning the results +// in string format. The result is trimmed to remove left and right +// padding and newlines that may be added unintentially in the +// template markup. +func RenderTrim(template string, payload *drone.Payload) (string, error) { + out, err := Render(template, payload) + return strings.Trim(out, " \n"), err +} + +// Write parses and executes a template, writing the results to +// writer w. +func Write(w io.Writer, template string, payload *drone.Payload) error { + out, err := Render(template, payload) + if err != nil { + return err + } + _, err = io.WriteString(w, out) + return err +} + +var funcs = map[string]interface{}{ + "uppercasefirst": uppercaseFirst, + "uppercase": strings.ToUpper, + "lowercase": strings.ToLower, + "duration": toDuration, + "datetime": toDatetime, + "success": isSuccess, + "failure": isFailure, + "truncate": truncate, + "urlencode": urlencode, +} + +// truncate is a helper function that truncates a string by a particular length. +func truncate(s string, len int) string { + if utf8.RuneCountInString(s) <= len { + return s + } + runes := []rune(s) + return string(runes[:len]) + +} + +// uppercaseFirst is a helper function that takes a string and capitalizes +// the first letter. +func uppercaseFirst(s string) string { + a := []rune(s) + a[0] = unicode.ToUpper(a[0]) + s = string(a) + return s +} + +// toDuration is a helper function that calculates a duration for a start and +// and end time, and returns the duration in string format. +func toDuration(started, finished float64) string { + return fmt.Sprintln(time.Duration(finished-started) * time.Second) +} + +// toDatetime is a helper function that converts a unix timestamp to a string. +func toDatetime(timestamp float64, layout, zone string) string { + if len(zone) == 0 { + return time.Unix(int64(timestamp), 0).Format(layout) + } + loc, err := time.LoadLocation(zone) + if err != nil { + fmt.Printf("Error parsing timezone, defaulting to local timezone. %s\n", err) + return time.Unix(int64(timestamp), 0).Local().Format(layout) + } + return time.Unix(int64(timestamp), 0).In(loc).Format(layout) +} + +// isSuccess is a helper function that executes a block iff the status +// is success, else it executes the else block. +func isSuccess(conditional bool, options *raymond.Options) string { + if !conditional { + return options.Inverse() + } + + switch options.ParamStr(0) { + case "success": + return options.Fn() + default: + return options.Inverse() + } +} + +// isFailure is a helper function that executes a block iff the status +// is a form of failure, else it executes the else block. +func isFailure(conditional bool, options *raymond.Options) string { + if !conditional { + return options.Inverse() + } + + switch options.ParamStr(0) { + case "failure", "error", "killed": + return options.Fn() + default: + return options.Inverse() + } +} + +// normalize takes a Go representation of the variable, marshals +// to json and then unmarshals to a map[string]interfacce{}. This +// is important because it let's us use the JSON variable names +// in our template +func normalize(in interface{}) map[string]interface{} { + data, _ := json.Marshal(in) // we own the types, so this should never fail + + out := map[string]interface{}{} + json.Unmarshal(data, &out) + return out +} + +// urlencode is a helper function that encode a block +// to url safe string. +func urlencode(options *raymond.Options) string { + return url.QueryEscape(options.Fn()) +} diff --git a/vendor/github.com/golang/protobuf/AUTHORS b/vendor/github.com/golang/protobuf/AUTHORS new file mode 100644 index 0000000..15167cd --- /dev/null +++ b/vendor/github.com/golang/protobuf/AUTHORS @@ -0,0 +1,3 @@ +# This source code refers to The Go Authors for copyright purposes. +# The master list of authors is in the main Go distribution, +# visible at http://tip.golang.org/AUTHORS. diff --git a/vendor/github.com/golang/protobuf/CONTRIBUTORS b/vendor/github.com/golang/protobuf/CONTRIBUTORS new file mode 100644 index 0000000..1c4577e --- /dev/null +++ b/vendor/github.com/golang/protobuf/CONTRIBUTORS @@ -0,0 +1,3 @@ +# This source code was written by the Go contributors. +# The master list of contributors is in the main Go distribution, +# visible at http://tip.golang.org/CONTRIBUTORS. diff --git a/vendor/github.com/golang/protobuf/LICENSE b/vendor/github.com/golang/protobuf/LICENSE new file mode 100644 index 0000000..1b1b192 --- /dev/null +++ b/vendor/github.com/golang/protobuf/LICENSE @@ -0,0 +1,31 @@ +Go support for Protocol Buffers - Google's data interchange format + +Copyright 2010 The Go Authors. All rights reserved. +https://github.com/golang/protobuf + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + diff --git a/vendor/github.com/golang/protobuf/Make.protobuf b/vendor/github.com/golang/protobuf/Make.protobuf new file mode 100644 index 0000000..15071de --- /dev/null +++ b/vendor/github.com/golang/protobuf/Make.protobuf @@ -0,0 +1,40 @@ +# Go support for Protocol Buffers - Google's data interchange format +# +# Copyright 2010 The Go Authors. All rights reserved. +# https://github.com/golang/protobuf +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +# Includable Makefile to add a rule for generating .pb.go files from .proto files +# (Google protocol buffer descriptions). +# Typical use if myproto.proto is a file in package mypackage in this directory: +# +# include $(GOROOT)/src/pkg/github.com/golang/protobuf/Make.protobuf + +%.pb.go: %.proto + protoc --go_out=. $< + diff --git a/vendor/github.com/golang/protobuf/Makefile b/vendor/github.com/golang/protobuf/Makefile new file mode 100644 index 0000000..80b6a17 --- /dev/null +++ b/vendor/github.com/golang/protobuf/Makefile @@ -0,0 +1,54 @@ +# Go support for Protocol Buffers - Google's data interchange format +# +# Copyright 2010 The Go Authors. All rights reserved. +# https://github.com/golang/protobuf +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + +all: install + +install: + go install ./proto ./jsonpb ./ptypes + go install ./protoc-gen-go + +test: + go test ./proto ./jsonpb ./ptypes + make -C protoc-gen-go/testdata test + +clean: + go clean ./... + +nuke: + go clean -i ./... + +regenerate: + make -C protoc-gen-go/descriptor regenerate + make -C protoc-gen-go/plugin regenerate + make -C protoc-gen-go/testdata regenerate + make -C proto/testdata regenerate + make -C jsonpb/jsonpb_test_proto regenerate diff --git a/vendor/github.com/golang/protobuf/README.md b/vendor/github.com/golang/protobuf/README.md new file mode 100644 index 0000000..8fdc89b --- /dev/null +++ b/vendor/github.com/golang/protobuf/README.md @@ -0,0 +1,199 @@ +# Go support for Protocol Buffers + +Google's data interchange format. +Copyright 2010 The Go Authors. +https://github.com/golang/protobuf + +This package and the code it generates requires at least Go 1.4. + +This software implements Go bindings for protocol buffers. For +information about protocol buffers themselves, see + https://developers.google.com/protocol-buffers/ + +## Installation ## + +To use this software, you must: +- Install the standard C++ implementation of protocol buffers from + https://developers.google.com/protocol-buffers/ +- Of course, install the Go compiler and tools from + https://golang.org/ + See + https://golang.org/doc/install + for details or, if you are using gccgo, follow the instructions at + https://golang.org/doc/install/gccgo +- Grab the code from the repository and install the proto package. + The simplest way is to run `go get -u github.com/golang/protobuf/{proto,protoc-gen-go}`. + The compiler plugin, protoc-gen-go, will be installed in $GOBIN, + defaulting to $GOPATH/bin. It must be in your $PATH for the protocol + compiler, protoc, to find it. + +This software has two parts: a 'protocol compiler plugin' that +generates Go source files that, once compiled, can access and manage +protocol buffers; and a library that implements run-time support for +encoding (marshaling), decoding (unmarshaling), and accessing protocol +buffers. + +There is support for gRPC in Go using protocol buffers. +See the note at the bottom of this file for details. + +There are no insertion points in the plugin. + + +## Using protocol buffers with Go ## + +Once the software is installed, there are two steps to using it. +First you must compile the protocol buffer definitions and then import +them, with the support library, into your program. + +To compile the protocol buffer definition, run protoc with the --go_out +parameter set to the directory you want to output the Go code to. + + protoc --go_out=. *.proto + +The generated files will be suffixed .pb.go. See the Test code below +for an example using such a file. + + +The package comment for the proto library contains text describing +the interface provided in Go for protocol buffers. Here is an edited +version. + +========== + +The proto package converts data structures to and from the +wire format of protocol buffers. It works in concert with the +Go source code generated for .proto files by the protocol compiler. + +A summary of the properties of the protocol buffer interface +for a protocol buffer variable v: + + - Names are turned from camel_case to CamelCase for export. + - There are no methods on v to set fields; just treat + them as structure fields. + - There are getters that return a field's value if set, + and return the field's default value if unset. + The getters work even if the receiver is a nil message. + - The zero value for a struct is its correct initialization state. + All desired fields must be set before marshaling. + - A Reset() method will restore a protobuf struct to its zero state. + - Non-repeated fields are pointers to the values; nil means unset. + That is, optional or required field int32 f becomes F *int32. + - Repeated fields are slices. + - Helper functions are available to aid the setting of fields. + Helpers for getting values are superseded by the + GetFoo methods and their use is deprecated. + msg.Foo = proto.String("hello") // set field + - Constants are defined to hold the default values of all fields that + have them. They have the form Default_StructName_FieldName. + Because the getter methods handle defaulted values, + direct use of these constants should be rare. + - Enums are given type names and maps from names to values. + Enum values are prefixed with the enum's type name. Enum types have + a String method, and a Enum method to assist in message construction. + - Nested groups and enums have type names prefixed with the name of + the surrounding message type. + - Extensions are given descriptor names that start with E_, + followed by an underscore-delimited list of the nested messages + that contain it (if any) followed by the CamelCased name of the + extension field itself. HasExtension, ClearExtension, GetExtension + and SetExtension are functions for manipulating extensions. + - Oneof field sets are given a single field in their message, + with distinguished wrapper types for each possible field value. + - Marshal and Unmarshal are functions to encode and decode the wire format. + +When the .proto file specifies `syntax="proto3"`, there are some differences: + + - Non-repeated fields of non-message type are values instead of pointers. + - Getters are only generated for message and oneof fields. + - Enum types do not get an Enum method. + +Consider file test.proto, containing + +```proto + package example; + + enum FOO { X = 17; }; + + message Test { + required string label = 1; + optional int32 type = 2 [default=77]; + repeated int64 reps = 3; + optional group OptionalGroup = 4 { + required string RequiredField = 5; + } + } +``` + +To create and play with a Test object from the example package, + +```go + package main + + import ( + "log" + + "github.com/golang/protobuf/proto" + "path/to/example" + ) + + func main() { + test := &example.Test { + Label: proto.String("hello"), + Type: proto.Int32(17), + Reps: []int64{1, 2, 3}, + Optionalgroup: &example.Test_OptionalGroup { + RequiredField: proto.String("good bye"), + }, + } + data, err := proto.Marshal(test) + if err != nil { + log.Fatal("marshaling error: ", err) + } + newTest := &example.Test{} + err = proto.Unmarshal(data, newTest) + if err != nil { + log.Fatal("unmarshaling error: ", err) + } + // Now test and newTest contain the same data. + if test.GetLabel() != newTest.GetLabel() { + log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel()) + } + // etc. + } +``` + +## Parameters ## + +To pass extra parameters to the plugin, use a comma-separated +parameter list separated from the output directory by a colon: + + + protoc --go_out=plugins=grpc,import_path=mypackage:. *.proto + + +- `import_prefix=xxx` - a prefix that is added onto the beginning of + all imports. Useful for things like generating protos in a + subdirectory, or regenerating vendored protobufs in-place. +- `import_path=foo/bar` - used as the package if no input files + declare `go_package`. If it contains slashes, everything up to the + rightmost slash is ignored. +- `plugins=plugin1+plugin2` - specifies the list of sub-plugins to + load. The only plugin in this repo is `grpc`. +- `Mfoo/bar.proto=quux/shme` - declares that foo/bar.proto is + associated with Go package quux/shme. This is subject to the + import_prefix parameter. + +## gRPC Support ## + +If a proto file specifies RPC services, protoc-gen-go can be instructed to +generate code compatible with gRPC (http://www.grpc.io/). To do this, pass +the `plugins` parameter to protoc-gen-go; the usual way is to insert it into +the --go_out argument to protoc: + + protoc --go_out=plugins=grpc:. *.proto + +## Plugins ## + +The `protoc-gen-go/generator` package exposes a plugin interface, +which is used by the gRPC code generation. This interface is not +supported and is subject to incompatible changes without notice. diff --git a/vendor/github.com/golang/protobuf/proto/Makefile b/vendor/github.com/golang/protobuf/proto/Makefile new file mode 100644 index 0000000..e2e0651 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/Makefile @@ -0,0 +1,43 @@ +# Go support for Protocol Buffers - Google's data interchange format +# +# Copyright 2010 The Go Authors. All rights reserved. +# https://github.com/golang/protobuf +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +install: + go install + +test: install generate-test-pbs + go test + + +generate-test-pbs: + make install + make -C testdata + protoc --go_out=Mtestdata/test.proto=github.com/golang/protobuf/proto/testdata,Mgoogle/protobuf/any.proto=github.com/golang/protobuf/ptypes/any:. proto3_proto/proto3.proto + make diff --git a/vendor/github.com/golang/protobuf/proto/clone.go b/vendor/github.com/golang/protobuf/proto/clone.go new file mode 100644 index 0000000..e392575 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/clone.go @@ -0,0 +1,229 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2011 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Protocol buffer deep copy and merge. +// TODO: RawMessage. + +package proto + +import ( + "log" + "reflect" + "strings" +) + +// Clone returns a deep copy of a protocol buffer. +func Clone(pb Message) Message { + in := reflect.ValueOf(pb) + if in.IsNil() { + return pb + } + + out := reflect.New(in.Type().Elem()) + // out is empty so a merge is a deep copy. + mergeStruct(out.Elem(), in.Elem()) + return out.Interface().(Message) +} + +// Merge merges src into dst. +// Required and optional fields that are set in src will be set to that value in dst. +// Elements of repeated fields will be appended. +// Merge panics if src and dst are not the same type, or if dst is nil. +func Merge(dst, src Message) { + in := reflect.ValueOf(src) + out := reflect.ValueOf(dst) + if out.IsNil() { + panic("proto: nil destination") + } + if in.Type() != out.Type() { + // Explicit test prior to mergeStruct so that mistyped nils will fail + panic("proto: type mismatch") + } + if in.IsNil() { + // Merging nil into non-nil is a quiet no-op + return + } + mergeStruct(out.Elem(), in.Elem()) +} + +func mergeStruct(out, in reflect.Value) { + sprop := GetProperties(in.Type()) + for i := 0; i < in.NumField(); i++ { + f := in.Type().Field(i) + if strings.HasPrefix(f.Name, "XXX_") { + continue + } + mergeAny(out.Field(i), in.Field(i), false, sprop.Prop[i]) + } + + if emIn, ok := extendable(in.Addr().Interface()); ok { + emOut, _ := extendable(out.Addr().Interface()) + mIn, muIn := emIn.extensionsRead() + if mIn != nil { + mOut := emOut.extensionsWrite() + muIn.Lock() + mergeExtension(mOut, mIn) + muIn.Unlock() + } + } + + uf := in.FieldByName("XXX_unrecognized") + if !uf.IsValid() { + return + } + uin := uf.Bytes() + if len(uin) > 0 { + out.FieldByName("XXX_unrecognized").SetBytes(append([]byte(nil), uin...)) + } +} + +// mergeAny performs a merge between two values of the same type. +// viaPtr indicates whether the values were indirected through a pointer (implying proto2). +// prop is set if this is a struct field (it may be nil). +func mergeAny(out, in reflect.Value, viaPtr bool, prop *Properties) { + if in.Type() == protoMessageType { + if !in.IsNil() { + if out.IsNil() { + out.Set(reflect.ValueOf(Clone(in.Interface().(Message)))) + } else { + Merge(out.Interface().(Message), in.Interface().(Message)) + } + } + return + } + switch in.Kind() { + case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64, + reflect.String, reflect.Uint32, reflect.Uint64: + if !viaPtr && isProto3Zero(in) { + return + } + out.Set(in) + case reflect.Interface: + // Probably a oneof field; copy non-nil values. + if in.IsNil() { + return + } + // Allocate destination if it is not set, or set to a different type. + // Otherwise we will merge as normal. + if out.IsNil() || out.Elem().Type() != in.Elem().Type() { + out.Set(reflect.New(in.Elem().Elem().Type())) // interface -> *T -> T -> new(T) + } + mergeAny(out.Elem(), in.Elem(), false, nil) + case reflect.Map: + if in.Len() == 0 { + return + } + if out.IsNil() { + out.Set(reflect.MakeMap(in.Type())) + } + // For maps with value types of *T or []byte we need to deep copy each value. + elemKind := in.Type().Elem().Kind() + for _, key := range in.MapKeys() { + var val reflect.Value + switch elemKind { + case reflect.Ptr: + val = reflect.New(in.Type().Elem().Elem()) + mergeAny(val, in.MapIndex(key), false, nil) + case reflect.Slice: + val = in.MapIndex(key) + val = reflect.ValueOf(append([]byte{}, val.Bytes()...)) + default: + val = in.MapIndex(key) + } + out.SetMapIndex(key, val) + } + case reflect.Ptr: + if in.IsNil() { + return + } + if out.IsNil() { + out.Set(reflect.New(in.Elem().Type())) + } + mergeAny(out.Elem(), in.Elem(), true, nil) + case reflect.Slice: + if in.IsNil() { + return + } + if in.Type().Elem().Kind() == reflect.Uint8 { + // []byte is a scalar bytes field, not a repeated field. + + // Edge case: if this is in a proto3 message, a zero length + // bytes field is considered the zero value, and should not + // be merged. + if prop != nil && prop.proto3 && in.Len() == 0 { + return + } + + // Make a deep copy. + // Append to []byte{} instead of []byte(nil) so that we never end up + // with a nil result. + out.SetBytes(append([]byte{}, in.Bytes()...)) + return + } + n := in.Len() + if out.IsNil() { + out.Set(reflect.MakeSlice(in.Type(), 0, n)) + } + switch in.Type().Elem().Kind() { + case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64, + reflect.String, reflect.Uint32, reflect.Uint64: + out.Set(reflect.AppendSlice(out, in)) + default: + for i := 0; i < n; i++ { + x := reflect.Indirect(reflect.New(in.Type().Elem())) + mergeAny(x, in.Index(i), false, nil) + out.Set(reflect.Append(out, x)) + } + } + case reflect.Struct: + mergeStruct(out, in) + default: + // unknown type, so not a protocol buffer + log.Printf("proto: don't know how to copy %v", in) + } +} + +func mergeExtension(out, in map[int32]Extension) { + for extNum, eIn := range in { + eOut := Extension{desc: eIn.desc} + if eIn.value != nil { + v := reflect.New(reflect.TypeOf(eIn.value)).Elem() + mergeAny(v, reflect.ValueOf(eIn.value), false, nil) + eOut.value = v.Interface() + } + if eIn.enc != nil { + eOut.enc = make([]byte, len(eIn.enc)) + copy(eOut.enc, eIn.enc) + } + + out[extNum] = eOut + } +} diff --git a/vendor/github.com/golang/protobuf/proto/decode.go b/vendor/github.com/golang/protobuf/proto/decode.go new file mode 100644 index 0000000..07288a2 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/decode.go @@ -0,0 +1,869 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2010 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +package proto + +/* + * Routines for decoding protocol buffer data to construct in-memory representations. + */ + +import ( + "errors" + "fmt" + "io" + "os" + "reflect" +) + +// errOverflow is returned when an integer is too large to be represented. +var errOverflow = errors.New("proto: integer overflow") + +// ErrInternalBadWireType is returned by generated code when an incorrect +// wire type is encountered. It does not get returned to user code. +var ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for oneof") + +// The fundamental decoders that interpret bytes on the wire. +// Those that take integer types all return uint64 and are +// therefore of type valueDecoder. + +// DecodeVarint reads a varint-encoded integer from the slice. +// It returns the integer and the number of bytes consumed, or +// zero if there is not enough. +// This is the format for the +// int32, int64, uint32, uint64, bool, and enum +// protocol buffer types. +func DecodeVarint(buf []byte) (x uint64, n int) { + // x, n already 0 + for shift := uint(0); shift < 64; shift += 7 { + if n >= len(buf) { + return 0, 0 + } + b := uint64(buf[n]) + n++ + x |= (b & 0x7F) << shift + if (b & 0x80) == 0 { + return x, n + } + } + + // The number is too large to represent in a 64-bit value. + return 0, 0 +} + +// DecodeVarint reads a varint-encoded integer from the Buffer. +// This is the format for the +// int32, int64, uint32, uint64, bool, and enum +// protocol buffer types. +func (p *Buffer) DecodeVarint() (x uint64, err error) { + // x, err already 0 + + i := p.index + l := len(p.buf) + + for shift := uint(0); shift < 64; shift += 7 { + if i >= l { + err = io.ErrUnexpectedEOF + return + } + b := p.buf[i] + i++ + x |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + p.index = i + return + } + } + + // The number is too large to represent in a 64-bit value. + err = errOverflow + return +} + +// DecodeFixed64 reads a 64-bit integer from the Buffer. +// This is the format for the +// fixed64, sfixed64, and double protocol buffer types. +func (p *Buffer) DecodeFixed64() (x uint64, err error) { + // x, err already 0 + i := p.index + 8 + if i < 0 || i > len(p.buf) { + err = io.ErrUnexpectedEOF + return + } + p.index = i + + x = uint64(p.buf[i-8]) + x |= uint64(p.buf[i-7]) << 8 + x |= uint64(p.buf[i-6]) << 16 + x |= uint64(p.buf[i-5]) << 24 + x |= uint64(p.buf[i-4]) << 32 + x |= uint64(p.buf[i-3]) << 40 + x |= uint64(p.buf[i-2]) << 48 + x |= uint64(p.buf[i-1]) << 56 + return +} + +// DecodeFixed32 reads a 32-bit integer from the Buffer. +// This is the format for the +// fixed32, sfixed32, and float protocol buffer types. +func (p *Buffer) DecodeFixed32() (x uint64, err error) { + // x, err already 0 + i := p.index + 4 + if i < 0 || i > len(p.buf) { + err = io.ErrUnexpectedEOF + return + } + p.index = i + + x = uint64(p.buf[i-4]) + x |= uint64(p.buf[i-3]) << 8 + x |= uint64(p.buf[i-2]) << 16 + x |= uint64(p.buf[i-1]) << 24 + return +} + +// DecodeZigzag64 reads a zigzag-encoded 64-bit integer +// from the Buffer. +// This is the format used for the sint64 protocol buffer type. +func (p *Buffer) DecodeZigzag64() (x uint64, err error) { + x, err = p.DecodeVarint() + if err != nil { + return + } + x = (x >> 1) ^ uint64((int64(x&1)<<63)>>63) + return +} + +// DecodeZigzag32 reads a zigzag-encoded 32-bit integer +// from the Buffer. +// This is the format used for the sint32 protocol buffer type. +func (p *Buffer) DecodeZigzag32() (x uint64, err error) { + x, err = p.DecodeVarint() + if err != nil { + return + } + x = uint64((uint32(x) >> 1) ^ uint32((int32(x&1)<<31)>>31)) + return +} + +// These are not ValueDecoders: they produce an array of bytes or a string. +// bytes, embedded messages + +// DecodeRawBytes reads a count-delimited byte buffer from the Buffer. +// This is the format used for the bytes protocol buffer +// type and for embedded messages. +func (p *Buffer) DecodeRawBytes(alloc bool) (buf []byte, err error) { + n, err := p.DecodeVarint() + if err != nil { + return nil, err + } + + nb := int(n) + if nb < 0 { + return nil, fmt.Errorf("proto: bad byte length %d", nb) + } + end := p.index + nb + if end < p.index || end > len(p.buf) { + return nil, io.ErrUnexpectedEOF + } + + if !alloc { + // todo: check if can get more uses of alloc=false + buf = p.buf[p.index:end] + p.index += nb + return + } + + buf = make([]byte, nb) + copy(buf, p.buf[p.index:]) + p.index += nb + return +} + +// DecodeStringBytes reads an encoded string from the Buffer. +// This is the format used for the proto2 string type. +func (p *Buffer) DecodeStringBytes() (s string, err error) { + buf, err := p.DecodeRawBytes(false) + if err != nil { + return + } + return string(buf), nil +} + +// Skip the next item in the buffer. Its wire type is decoded and presented as an argument. +// If the protocol buffer has extensions, and the field matches, add it as an extension. +// Otherwise, if the XXX_unrecognized field exists, append the skipped data there. +func (o *Buffer) skipAndSave(t reflect.Type, tag, wire int, base structPointer, unrecField field) error { + oi := o.index + + err := o.skip(t, tag, wire) + if err != nil { + return err + } + + if !unrecField.IsValid() { + return nil + } + + ptr := structPointer_Bytes(base, unrecField) + + // Add the skipped field to struct field + obuf := o.buf + + o.buf = *ptr + o.EncodeVarint(uint64(tag<<3 | wire)) + *ptr = append(o.buf, obuf[oi:o.index]...) + + o.buf = obuf + + return nil +} + +// Skip the next item in the buffer. Its wire type is decoded and presented as an argument. +func (o *Buffer) skip(t reflect.Type, tag, wire int) error { + + var u uint64 + var err error + + switch wire { + case WireVarint: + _, err = o.DecodeVarint() + case WireFixed64: + _, err = o.DecodeFixed64() + case WireBytes: + _, err = o.DecodeRawBytes(false) + case WireFixed32: + _, err = o.DecodeFixed32() + case WireStartGroup: + for { + u, err = o.DecodeVarint() + if err != nil { + break + } + fwire := int(u & 0x7) + if fwire == WireEndGroup { + break + } + ftag := int(u >> 3) + err = o.skip(t, ftag, fwire) + if err != nil { + break + } + } + default: + err = fmt.Errorf("proto: can't skip unknown wire type %d for %s", wire, t) + } + return err +} + +// Unmarshaler is the interface representing objects that can +// unmarshal themselves. The method should reset the receiver before +// decoding starts. The argument points to data that may be +// overwritten, so implementations should not keep references to the +// buffer. +type Unmarshaler interface { + Unmarshal([]byte) error +} + +// Unmarshal parses the protocol buffer representation in buf and places the +// decoded result in pb. If the struct underlying pb does not match +// the data in buf, the results can be unpredictable. +// +// Unmarshal resets pb before starting to unmarshal, so any +// existing data in pb is always removed. Use UnmarshalMerge +// to preserve and append to existing data. +func Unmarshal(buf []byte, pb Message) error { + pb.Reset() + return UnmarshalMerge(buf, pb) +} + +// UnmarshalMerge parses the protocol buffer representation in buf and +// writes the decoded result to pb. If the struct underlying pb does not match +// the data in buf, the results can be unpredictable. +// +// UnmarshalMerge merges into existing data in pb. +// Most code should use Unmarshal instead. +func UnmarshalMerge(buf []byte, pb Message) error { + // If the object can unmarshal itself, let it. + if u, ok := pb.(Unmarshaler); ok { + return u.Unmarshal(buf) + } + return NewBuffer(buf).Unmarshal(pb) +} + +// DecodeMessage reads a count-delimited message from the Buffer. +func (p *Buffer) DecodeMessage(pb Message) error { + enc, err := p.DecodeRawBytes(false) + if err != nil { + return err + } + return NewBuffer(enc).Unmarshal(pb) +} + +// DecodeGroup reads a tag-delimited group from the Buffer. +func (p *Buffer) DecodeGroup(pb Message) error { + typ, base, err := getbase(pb) + if err != nil { + return err + } + return p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), true, base) +} + +// Unmarshal parses the protocol buffer representation in the +// Buffer and places the decoded result in pb. If the struct +// underlying pb does not match the data in the buffer, the results can be +// unpredictable. +func (p *Buffer) Unmarshal(pb Message) error { + // If the object can unmarshal itself, let it. + if u, ok := pb.(Unmarshaler); ok { + err := u.Unmarshal(p.buf[p.index:]) + p.index = len(p.buf) + return err + } + + typ, base, err := getbase(pb) + if err != nil { + return err + } + + err = p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), false, base) + + if collectStats { + stats.Decode++ + } + + return err +} + +// unmarshalType does the work of unmarshaling a structure. +func (o *Buffer) unmarshalType(st reflect.Type, prop *StructProperties, is_group bool, base structPointer) error { + var state errorState + required, reqFields := prop.reqCount, uint64(0) + + var err error + for err == nil && o.index < len(o.buf) { + oi := o.index + var u uint64 + u, err = o.DecodeVarint() + if err != nil { + break + } + wire := int(u & 0x7) + if wire == WireEndGroup { + if is_group { + return nil // input is satisfied + } + return fmt.Errorf("proto: %s: wiretype end group for non-group", st) + } + tag := int(u >> 3) + if tag <= 0 { + return fmt.Errorf("proto: %s: illegal tag %d (wire type %d)", st, tag, wire) + } + fieldnum, ok := prop.decoderTags.get(tag) + if !ok { + // Maybe it's an extension? + if prop.extendable { + if e, _ := extendable(structPointer_Interface(base, st)); isExtensionField(e, int32(tag)) { + if err = o.skip(st, tag, wire); err == nil { + extmap := e.extensionsWrite() + ext := extmap[int32(tag)] // may be missing + ext.enc = append(ext.enc, o.buf[oi:o.index]...) + extmap[int32(tag)] = ext + } + continue + } + } + // Maybe it's a oneof? + if prop.oneofUnmarshaler != nil { + m := structPointer_Interface(base, st).(Message) + // First return value indicates whether tag is a oneof field. + ok, err = prop.oneofUnmarshaler(m, tag, wire, o) + if err == ErrInternalBadWireType { + // Map the error to something more descriptive. + // Do the formatting here to save generated code space. + err = fmt.Errorf("bad wiretype for oneof field in %T", m) + } + if ok { + continue + } + } + err = o.skipAndSave(st, tag, wire, base, prop.unrecField) + continue + } + p := prop.Prop[fieldnum] + + if p.dec == nil { + fmt.Fprintf(os.Stderr, "proto: no protobuf decoder for %s.%s\n", st, st.Field(fieldnum).Name) + continue + } + dec := p.dec + if wire != WireStartGroup && wire != p.WireType { + if wire == WireBytes && p.packedDec != nil { + // a packable field + dec = p.packedDec + } else { + err = fmt.Errorf("proto: bad wiretype for field %s.%s: got wiretype %d, want %d", st, st.Field(fieldnum).Name, wire, p.WireType) + continue + } + } + decErr := dec(o, p, base) + if decErr != nil && !state.shouldContinue(decErr, p) { + err = decErr + } + if err == nil && p.Required { + // Successfully decoded a required field. + if tag <= 64 { + // use bitmap for fields 1-64 to catch field reuse. + var mask uint64 = 1 << uint64(tag-1) + if reqFields&mask == 0 { + // new required field + reqFields |= mask + required-- + } + } else { + // This is imprecise. It can be fooled by a required field + // with a tag > 64 that is encoded twice; that's very rare. + // A fully correct implementation would require allocating + // a data structure, which we would like to avoid. + required-- + } + } + } + if err == nil { + if is_group { + return io.ErrUnexpectedEOF + } + if state.err != nil { + return state.err + } + if required > 0 { + // Not enough information to determine the exact field. If we use extra + // CPU, we could determine the field only if the missing required field + // has a tag <= 64 and we check reqFields. + return &RequiredNotSetError{"{Unknown}"} + } + } + return err +} + +// Individual type decoders +// For each, +// u is the decoded value, +// v is a pointer to the field (pointer) in the struct + +// Sizes of the pools to allocate inside the Buffer. +// The goal is modest amortization and allocation +// on at least 16-byte boundaries. +const ( + boolPoolSize = 16 + uint32PoolSize = 8 + uint64PoolSize = 4 +) + +// Decode a bool. +func (o *Buffer) dec_bool(p *Properties, base structPointer) error { + u, err := p.valDec(o) + if err != nil { + return err + } + if len(o.bools) == 0 { + o.bools = make([]bool, boolPoolSize) + } + o.bools[0] = u != 0 + *structPointer_Bool(base, p.field) = &o.bools[0] + o.bools = o.bools[1:] + return nil +} + +func (o *Buffer) dec_proto3_bool(p *Properties, base structPointer) error { + u, err := p.valDec(o) + if err != nil { + return err + } + *structPointer_BoolVal(base, p.field) = u != 0 + return nil +} + +// Decode an int32. +func (o *Buffer) dec_int32(p *Properties, base structPointer) error { + u, err := p.valDec(o) + if err != nil { + return err + } + word32_Set(structPointer_Word32(base, p.field), o, uint32(u)) + return nil +} + +func (o *Buffer) dec_proto3_int32(p *Properties, base structPointer) error { + u, err := p.valDec(o) + if err != nil { + return err + } + word32Val_Set(structPointer_Word32Val(base, p.field), uint32(u)) + return nil +} + +// Decode an int64. +func (o *Buffer) dec_int64(p *Properties, base structPointer) error { + u, err := p.valDec(o) + if err != nil { + return err + } + word64_Set(structPointer_Word64(base, p.field), o, u) + return nil +} + +func (o *Buffer) dec_proto3_int64(p *Properties, base structPointer) error { + u, err := p.valDec(o) + if err != nil { + return err + } + word64Val_Set(structPointer_Word64Val(base, p.field), o, u) + return nil +} + +// Decode a string. +func (o *Buffer) dec_string(p *Properties, base structPointer) error { + s, err := o.DecodeStringBytes() + if err != nil { + return err + } + *structPointer_String(base, p.field) = &s + return nil +} + +func (o *Buffer) dec_proto3_string(p *Properties, base structPointer) error { + s, err := o.DecodeStringBytes() + if err != nil { + return err + } + *structPointer_StringVal(base, p.field) = s + return nil +} + +// Decode a slice of bytes ([]byte). +func (o *Buffer) dec_slice_byte(p *Properties, base structPointer) error { + b, err := o.DecodeRawBytes(true) + if err != nil { + return err + } + *structPointer_Bytes(base, p.field) = b + return nil +} + +// Decode a slice of bools ([]bool). +func (o *Buffer) dec_slice_bool(p *Properties, base structPointer) error { + u, err := p.valDec(o) + if err != nil { + return err + } + v := structPointer_BoolSlice(base, p.field) + *v = append(*v, u != 0) + return nil +} + +// Decode a slice of bools ([]bool) in packed format. +func (o *Buffer) dec_slice_packed_bool(p *Properties, base structPointer) error { + v := structPointer_BoolSlice(base, p.field) + + nn, err := o.DecodeVarint() + if err != nil { + return err + } + nb := int(nn) // number of bytes of encoded bools + fin := o.index + nb + if fin < o.index { + return errOverflow + } + + y := *v + for o.index < fin { + u, err := p.valDec(o) + if err != nil { + return err + } + y = append(y, u != 0) + } + + *v = y + return nil +} + +// Decode a slice of int32s ([]int32). +func (o *Buffer) dec_slice_int32(p *Properties, base structPointer) error { + u, err := p.valDec(o) + if err != nil { + return err + } + structPointer_Word32Slice(base, p.field).Append(uint32(u)) + return nil +} + +// Decode a slice of int32s ([]int32) in packed format. +func (o *Buffer) dec_slice_packed_int32(p *Properties, base structPointer) error { + v := structPointer_Word32Slice(base, p.field) + + nn, err := o.DecodeVarint() + if err != nil { + return err + } + nb := int(nn) // number of bytes of encoded int32s + + fin := o.index + nb + if fin < o.index { + return errOverflow + } + for o.index < fin { + u, err := p.valDec(o) + if err != nil { + return err + } + v.Append(uint32(u)) + } + return nil +} + +// Decode a slice of int64s ([]int64). +func (o *Buffer) dec_slice_int64(p *Properties, base structPointer) error { + u, err := p.valDec(o) + if err != nil { + return err + } + + structPointer_Word64Slice(base, p.field).Append(u) + return nil +} + +// Decode a slice of int64s ([]int64) in packed format. +func (o *Buffer) dec_slice_packed_int64(p *Properties, base structPointer) error { + v := structPointer_Word64Slice(base, p.field) + + nn, err := o.DecodeVarint() + if err != nil { + return err + } + nb := int(nn) // number of bytes of encoded int64s + + fin := o.index + nb + if fin < o.index { + return errOverflow + } + for o.index < fin { + u, err := p.valDec(o) + if err != nil { + return err + } + v.Append(u) + } + return nil +} + +// Decode a slice of strings ([]string). +func (o *Buffer) dec_slice_string(p *Properties, base structPointer) error { + s, err := o.DecodeStringBytes() + if err != nil { + return err + } + v := structPointer_StringSlice(base, p.field) + *v = append(*v, s) + return nil +} + +// Decode a slice of slice of bytes ([][]byte). +func (o *Buffer) dec_slice_slice_byte(p *Properties, base structPointer) error { + b, err := o.DecodeRawBytes(true) + if err != nil { + return err + } + v := structPointer_BytesSlice(base, p.field) + *v = append(*v, b) + return nil +} + +// Decode a map field. +func (o *Buffer) dec_new_map(p *Properties, base structPointer) error { + raw, err := o.DecodeRawBytes(false) + if err != nil { + return err + } + oi := o.index // index at the end of this map entry + o.index -= len(raw) // move buffer back to start of map entry + + mptr := structPointer_NewAt(base, p.field, p.mtype) // *map[K]V + if mptr.Elem().IsNil() { + mptr.Elem().Set(reflect.MakeMap(mptr.Type().Elem())) + } + v := mptr.Elem() // map[K]V + + // Prepare addressable doubly-indirect placeholders for the key and value types. + // See enc_new_map for why. + keyptr := reflect.New(reflect.PtrTo(p.mtype.Key())).Elem() // addressable *K + keybase := toStructPointer(keyptr.Addr()) // **K + + var valbase structPointer + var valptr reflect.Value + switch p.mtype.Elem().Kind() { + case reflect.Slice: + // []byte + var dummy []byte + valptr = reflect.ValueOf(&dummy) // *[]byte + valbase = toStructPointer(valptr) // *[]byte + case reflect.Ptr: + // message; valptr is **Msg; need to allocate the intermediate pointer + valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V + valptr.Set(reflect.New(valptr.Type().Elem())) + valbase = toStructPointer(valptr) + default: + // everything else + valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V + valbase = toStructPointer(valptr.Addr()) // **V + } + + // Decode. + // This parses a restricted wire format, namely the encoding of a message + // with two fields. See enc_new_map for the format. + for o.index < oi { + // tagcode for key and value properties are always a single byte + // because they have tags 1 and 2. + tagcode := o.buf[o.index] + o.index++ + switch tagcode { + case p.mkeyprop.tagcode[0]: + if err := p.mkeyprop.dec(o, p.mkeyprop, keybase); err != nil { + return err + } + case p.mvalprop.tagcode[0]: + if err := p.mvalprop.dec(o, p.mvalprop, valbase); err != nil { + return err + } + default: + // TODO: Should we silently skip this instead? + return fmt.Errorf("proto: bad map data tag %d", raw[0]) + } + } + keyelem, valelem := keyptr.Elem(), valptr.Elem() + if !keyelem.IsValid() { + keyelem = reflect.Zero(p.mtype.Key()) + } + if !valelem.IsValid() { + valelem = reflect.Zero(p.mtype.Elem()) + } + + v.SetMapIndex(keyelem, valelem) + return nil +} + +// Decode a group. +func (o *Buffer) dec_struct_group(p *Properties, base structPointer) error { + bas := structPointer_GetStructPointer(base, p.field) + if structPointer_IsNil(bas) { + // allocate new nested message + bas = toStructPointer(reflect.New(p.stype)) + structPointer_SetStructPointer(base, p.field, bas) + } + return o.unmarshalType(p.stype, p.sprop, true, bas) +} + +// Decode an embedded message. +func (o *Buffer) dec_struct_message(p *Properties, base structPointer) (err error) { + raw, e := o.DecodeRawBytes(false) + if e != nil { + return e + } + + bas := structPointer_GetStructPointer(base, p.field) + if structPointer_IsNil(bas) { + // allocate new nested message + bas = toStructPointer(reflect.New(p.stype)) + structPointer_SetStructPointer(base, p.field, bas) + } + + // If the object can unmarshal itself, let it. + if p.isUnmarshaler { + iv := structPointer_Interface(bas, p.stype) + return iv.(Unmarshaler).Unmarshal(raw) + } + + obuf := o.buf + oi := o.index + o.buf = raw + o.index = 0 + + err = o.unmarshalType(p.stype, p.sprop, false, bas) + o.buf = obuf + o.index = oi + + return err +} + +// Decode a slice of embedded messages. +func (o *Buffer) dec_slice_struct_message(p *Properties, base structPointer) error { + return o.dec_slice_struct(p, false, base) +} + +// Decode a slice of embedded groups. +func (o *Buffer) dec_slice_struct_group(p *Properties, base structPointer) error { + return o.dec_slice_struct(p, true, base) +} + +// Decode a slice of structs ([]*struct). +func (o *Buffer) dec_slice_struct(p *Properties, is_group bool, base structPointer) error { + v := reflect.New(p.stype) + bas := toStructPointer(v) + structPointer_StructPointerSlice(base, p.field).Append(bas) + + if is_group { + err := o.unmarshalType(p.stype, p.sprop, is_group, bas) + return err + } + + raw, err := o.DecodeRawBytes(false) + if err != nil { + return err + } + + // If the object can unmarshal itself, let it. + if p.isUnmarshaler { + iv := v.Interface() + return iv.(Unmarshaler).Unmarshal(raw) + } + + obuf := o.buf + oi := o.index + o.buf = raw + o.index = 0 + + err = o.unmarshalType(p.stype, p.sprop, is_group, bas) + + o.buf = obuf + o.index = oi + + return err +} diff --git a/vendor/github.com/golang/protobuf/proto/encode.go b/vendor/github.com/golang/protobuf/proto/encode.go new file mode 100644 index 0000000..8c1b8fd --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/encode.go @@ -0,0 +1,1363 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2010 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +package proto + +/* + * Routines for encoding data into the wire format for protocol buffers. + */ + +import ( + "errors" + "fmt" + "reflect" + "sort" +) + +// RequiredNotSetError is the error returned if Marshal is called with +// a protocol buffer struct whose required fields have not +// all been initialized. It is also the error returned if Unmarshal is +// called with an encoded protocol buffer that does not include all the +// required fields. +// +// When printed, RequiredNotSetError reports the first unset required field in a +// message. If the field cannot be precisely determined, it is reported as +// "{Unknown}". +type RequiredNotSetError struct { + field string +} + +func (e *RequiredNotSetError) Error() string { + return fmt.Sprintf("proto: required field %q not set", e.field) +} + +var ( + // errRepeatedHasNil is the error returned if Marshal is called with + // a struct with a repeated field containing a nil element. + errRepeatedHasNil = errors.New("proto: repeated field has nil element") + + // errOneofHasNil is the error returned if Marshal is called with + // a struct with a oneof field containing a nil element. + errOneofHasNil = errors.New("proto: oneof field has nil value") + + // ErrNil is the error returned if Marshal is called with nil. + ErrNil = errors.New("proto: Marshal called with nil") + + // ErrTooLarge is the error returned if Marshal is called with a + // message that encodes to >2GB. + ErrTooLarge = errors.New("proto: message encodes to over 2 GB") +) + +// The fundamental encoders that put bytes on the wire. +// Those that take integer types all accept uint64 and are +// therefore of type valueEncoder. + +const maxVarintBytes = 10 // maximum length of a varint + +// maxMarshalSize is the largest allowed size of an encoded protobuf, +// since C++ and Java use signed int32s for the size. +const maxMarshalSize = 1<<31 - 1 + +// EncodeVarint returns the varint encoding of x. +// This is the format for the +// int32, int64, uint32, uint64, bool, and enum +// protocol buffer types. +// Not used by the package itself, but helpful to clients +// wishing to use the same encoding. +func EncodeVarint(x uint64) []byte { + var buf [maxVarintBytes]byte + var n int + for n = 0; x > 127; n++ { + buf[n] = 0x80 | uint8(x&0x7F) + x >>= 7 + } + buf[n] = uint8(x) + n++ + return buf[0:n] +} + +// EncodeVarint writes a varint-encoded integer to the Buffer. +// This is the format for the +// int32, int64, uint32, uint64, bool, and enum +// protocol buffer types. +func (p *Buffer) EncodeVarint(x uint64) error { + for x >= 1<<7 { + p.buf = append(p.buf, uint8(x&0x7f|0x80)) + x >>= 7 + } + p.buf = append(p.buf, uint8(x)) + return nil +} + +// SizeVarint returns the varint encoding size of an integer. +func SizeVarint(x uint64) int { + return sizeVarint(x) +} + +func sizeVarint(x uint64) (n int) { + for { + n++ + x >>= 7 + if x == 0 { + break + } + } + return n +} + +// EncodeFixed64 writes a 64-bit integer to the Buffer. +// This is the format for the +// fixed64, sfixed64, and double protocol buffer types. +func (p *Buffer) EncodeFixed64(x uint64) error { + p.buf = append(p.buf, + uint8(x), + uint8(x>>8), + uint8(x>>16), + uint8(x>>24), + uint8(x>>32), + uint8(x>>40), + uint8(x>>48), + uint8(x>>56)) + return nil +} + +func sizeFixed64(x uint64) int { + return 8 +} + +// EncodeFixed32 writes a 32-bit integer to the Buffer. +// This is the format for the +// fixed32, sfixed32, and float protocol buffer types. +func (p *Buffer) EncodeFixed32(x uint64) error { + p.buf = append(p.buf, + uint8(x), + uint8(x>>8), + uint8(x>>16), + uint8(x>>24)) + return nil +} + +func sizeFixed32(x uint64) int { + return 4 +} + +// EncodeZigzag64 writes a zigzag-encoded 64-bit integer +// to the Buffer. +// This is the format used for the sint64 protocol buffer type. +func (p *Buffer) EncodeZigzag64(x uint64) error { + // use signed number to get arithmetic right shift. + return p.EncodeVarint(uint64((x << 1) ^ uint64((int64(x) >> 63)))) +} + +func sizeZigzag64(x uint64) int { + return sizeVarint(uint64((x << 1) ^ uint64((int64(x) >> 63)))) +} + +// EncodeZigzag32 writes a zigzag-encoded 32-bit integer +// to the Buffer. +// This is the format used for the sint32 protocol buffer type. +func (p *Buffer) EncodeZigzag32(x uint64) error { + // use signed number to get arithmetic right shift. + return p.EncodeVarint(uint64((uint32(x) << 1) ^ uint32((int32(x) >> 31)))) +} + +func sizeZigzag32(x uint64) int { + return sizeVarint(uint64((uint32(x) << 1) ^ uint32((int32(x) >> 31)))) +} + +// EncodeRawBytes writes a count-delimited byte buffer to the Buffer. +// This is the format used for the bytes protocol buffer +// type and for embedded messages. +func (p *Buffer) EncodeRawBytes(b []byte) error { + p.EncodeVarint(uint64(len(b))) + p.buf = append(p.buf, b...) + return nil +} + +func sizeRawBytes(b []byte) int { + return sizeVarint(uint64(len(b))) + + len(b) +} + +// EncodeStringBytes writes an encoded string to the Buffer. +// This is the format used for the proto2 string type. +func (p *Buffer) EncodeStringBytes(s string) error { + p.EncodeVarint(uint64(len(s))) + p.buf = append(p.buf, s...) + return nil +} + +func sizeStringBytes(s string) int { + return sizeVarint(uint64(len(s))) + + len(s) +} + +// Marshaler is the interface representing objects that can marshal themselves. +type Marshaler interface { + Marshal() ([]byte, error) +} + +// Marshal takes the protocol buffer +// and encodes it into the wire format, returning the data. +func Marshal(pb Message) ([]byte, error) { + // Can the object marshal itself? + if m, ok := pb.(Marshaler); ok { + return m.Marshal() + } + p := NewBuffer(nil) + err := p.Marshal(pb) + var state errorState + if err != nil && !state.shouldContinue(err, nil) { + return nil, err + } + if p.buf == nil && err == nil { + // Return a non-nil slice on success. + return []byte{}, nil + } + return p.buf, err +} + +// EncodeMessage writes the protocol buffer to the Buffer, +// prefixed by a varint-encoded length. +func (p *Buffer) EncodeMessage(pb Message) error { + t, base, err := getbase(pb) + if structPointer_IsNil(base) { + return ErrNil + } + if err == nil { + var state errorState + err = p.enc_len_struct(GetProperties(t.Elem()), base, &state) + } + return err +} + +// Marshal takes the protocol buffer +// and encodes it into the wire format, writing the result to the +// Buffer. +func (p *Buffer) Marshal(pb Message) error { + // Can the object marshal itself? + if m, ok := pb.(Marshaler); ok { + data, err := m.Marshal() + if err != nil { + return err + } + p.buf = append(p.buf, data...) + return nil + } + + t, base, err := getbase(pb) + if structPointer_IsNil(base) { + return ErrNil + } + if err == nil { + err = p.enc_struct(GetProperties(t.Elem()), base) + } + + if collectStats { + stats.Encode++ + } + + if len(p.buf) > maxMarshalSize { + return ErrTooLarge + } + return err +} + +// Size returns the encoded size of a protocol buffer. +func Size(pb Message) (n int) { + // Can the object marshal itself? If so, Size is slow. + // TODO: add Size to Marshaler, or add a Sizer interface. + if m, ok := pb.(Marshaler); ok { + b, _ := m.Marshal() + return len(b) + } + + t, base, err := getbase(pb) + if structPointer_IsNil(base) { + return 0 + } + if err == nil { + n = size_struct(GetProperties(t.Elem()), base) + } + + if collectStats { + stats.Size++ + } + + return +} + +// Individual type encoders. + +// Encode a bool. +func (o *Buffer) enc_bool(p *Properties, base structPointer) error { + v := *structPointer_Bool(base, p.field) + if v == nil { + return ErrNil + } + x := 0 + if *v { + x = 1 + } + o.buf = append(o.buf, p.tagcode...) + p.valEnc(o, uint64(x)) + return nil +} + +func (o *Buffer) enc_proto3_bool(p *Properties, base structPointer) error { + v := *structPointer_BoolVal(base, p.field) + if !v { + return ErrNil + } + o.buf = append(o.buf, p.tagcode...) + p.valEnc(o, 1) + return nil +} + +func size_bool(p *Properties, base structPointer) int { + v := *structPointer_Bool(base, p.field) + if v == nil { + return 0 + } + return len(p.tagcode) + 1 // each bool takes exactly one byte +} + +func size_proto3_bool(p *Properties, base structPointer) int { + v := *structPointer_BoolVal(base, p.field) + if !v && !p.oneof { + return 0 + } + return len(p.tagcode) + 1 // each bool takes exactly one byte +} + +// Encode an int32. +func (o *Buffer) enc_int32(p *Properties, base structPointer) error { + v := structPointer_Word32(base, p.field) + if word32_IsNil(v) { + return ErrNil + } + x := int32(word32_Get(v)) // permit sign extension to use full 64-bit range + o.buf = append(o.buf, p.tagcode...) + p.valEnc(o, uint64(x)) + return nil +} + +func (o *Buffer) enc_proto3_int32(p *Properties, base structPointer) error { + v := structPointer_Word32Val(base, p.field) + x := int32(word32Val_Get(v)) // permit sign extension to use full 64-bit range + if x == 0 { + return ErrNil + } + o.buf = append(o.buf, p.tagcode...) + p.valEnc(o, uint64(x)) + return nil +} + +func size_int32(p *Properties, base structPointer) (n int) { + v := structPointer_Word32(base, p.field) + if word32_IsNil(v) { + return 0 + } + x := int32(word32_Get(v)) // permit sign extension to use full 64-bit range + n += len(p.tagcode) + n += p.valSize(uint64(x)) + return +} + +func size_proto3_int32(p *Properties, base structPointer) (n int) { + v := structPointer_Word32Val(base, p.field) + x := int32(word32Val_Get(v)) // permit sign extension to use full 64-bit range + if x == 0 && !p.oneof { + return 0 + } + n += len(p.tagcode) + n += p.valSize(uint64(x)) + return +} + +// Encode a uint32. +// Exactly the same as int32, except for no sign extension. +func (o *Buffer) enc_uint32(p *Properties, base structPointer) error { + v := structPointer_Word32(base, p.field) + if word32_IsNil(v) { + return ErrNil + } + x := word32_Get(v) + o.buf = append(o.buf, p.tagcode...) + p.valEnc(o, uint64(x)) + return nil +} + +func (o *Buffer) enc_proto3_uint32(p *Properties, base structPointer) error { + v := structPointer_Word32Val(base, p.field) + x := word32Val_Get(v) + if x == 0 { + return ErrNil + } + o.buf = append(o.buf, p.tagcode...) + p.valEnc(o, uint64(x)) + return nil +} + +func size_uint32(p *Properties, base structPointer) (n int) { + v := structPointer_Word32(base, p.field) + if word32_IsNil(v) { + return 0 + } + x := word32_Get(v) + n += len(p.tagcode) + n += p.valSize(uint64(x)) + return +} + +func size_proto3_uint32(p *Properties, base structPointer) (n int) { + v := structPointer_Word32Val(base, p.field) + x := word32Val_Get(v) + if x == 0 && !p.oneof { + return 0 + } + n += len(p.tagcode) + n += p.valSize(uint64(x)) + return +} + +// Encode an int64. +func (o *Buffer) enc_int64(p *Properties, base structPointer) error { + v := structPointer_Word64(base, p.field) + if word64_IsNil(v) { + return ErrNil + } + x := word64_Get(v) + o.buf = append(o.buf, p.tagcode...) + p.valEnc(o, x) + return nil +} + +func (o *Buffer) enc_proto3_int64(p *Properties, base structPointer) error { + v := structPointer_Word64Val(base, p.field) + x := word64Val_Get(v) + if x == 0 { + return ErrNil + } + o.buf = append(o.buf, p.tagcode...) + p.valEnc(o, x) + return nil +} + +func size_int64(p *Properties, base structPointer) (n int) { + v := structPointer_Word64(base, p.field) + if word64_IsNil(v) { + return 0 + } + x := word64_Get(v) + n += len(p.tagcode) + n += p.valSize(x) + return +} + +func size_proto3_int64(p *Properties, base structPointer) (n int) { + v := structPointer_Word64Val(base, p.field) + x := word64Val_Get(v) + if x == 0 && !p.oneof { + return 0 + } + n += len(p.tagcode) + n += p.valSize(x) + return +} + +// Encode a string. +func (o *Buffer) enc_string(p *Properties, base structPointer) error { + v := *structPointer_String(base, p.field) + if v == nil { + return ErrNil + } + x := *v + o.buf = append(o.buf, p.tagcode...) + o.EncodeStringBytes(x) + return nil +} + +func (o *Buffer) enc_proto3_string(p *Properties, base structPointer) error { + v := *structPointer_StringVal(base, p.field) + if v == "" { + return ErrNil + } + o.buf = append(o.buf, p.tagcode...) + o.EncodeStringBytes(v) + return nil +} + +func size_string(p *Properties, base structPointer) (n int) { + v := *structPointer_String(base, p.field) + if v == nil { + return 0 + } + x := *v + n += len(p.tagcode) + n += sizeStringBytes(x) + return +} + +func size_proto3_string(p *Properties, base structPointer) (n int) { + v := *structPointer_StringVal(base, p.field) + if v == "" && !p.oneof { + return 0 + } + n += len(p.tagcode) + n += sizeStringBytes(v) + return +} + +// All protocol buffer fields are nillable, but be careful. +func isNil(v reflect.Value) bool { + switch v.Kind() { + case reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice: + return v.IsNil() + } + return false +} + +// Encode a message struct. +func (o *Buffer) enc_struct_message(p *Properties, base structPointer) error { + var state errorState + structp := structPointer_GetStructPointer(base, p.field) + if structPointer_IsNil(structp) { + return ErrNil + } + + // Can the object marshal itself? + if p.isMarshaler { + m := structPointer_Interface(structp, p.stype).(Marshaler) + data, err := m.Marshal() + if err != nil && !state.shouldContinue(err, nil) { + return err + } + o.buf = append(o.buf, p.tagcode...) + o.EncodeRawBytes(data) + return state.err + } + + o.buf = append(o.buf, p.tagcode...) + return o.enc_len_struct(p.sprop, structp, &state) +} + +func size_struct_message(p *Properties, base structPointer) int { + structp := structPointer_GetStructPointer(base, p.field) + if structPointer_IsNil(structp) { + return 0 + } + + // Can the object marshal itself? + if p.isMarshaler { + m := structPointer_Interface(structp, p.stype).(Marshaler) + data, _ := m.Marshal() + n0 := len(p.tagcode) + n1 := sizeRawBytes(data) + return n0 + n1 + } + + n0 := len(p.tagcode) + n1 := size_struct(p.sprop, structp) + n2 := sizeVarint(uint64(n1)) // size of encoded length + return n0 + n1 + n2 +} + +// Encode a group struct. +func (o *Buffer) enc_struct_group(p *Properties, base structPointer) error { + var state errorState + b := structPointer_GetStructPointer(base, p.field) + if structPointer_IsNil(b) { + return ErrNil + } + + o.EncodeVarint(uint64((p.Tag << 3) | WireStartGroup)) + err := o.enc_struct(p.sprop, b) + if err != nil && !state.shouldContinue(err, nil) { + return err + } + o.EncodeVarint(uint64((p.Tag << 3) | WireEndGroup)) + return state.err +} + +func size_struct_group(p *Properties, base structPointer) (n int) { + b := structPointer_GetStructPointer(base, p.field) + if structPointer_IsNil(b) { + return 0 + } + + n += sizeVarint(uint64((p.Tag << 3) | WireStartGroup)) + n += size_struct(p.sprop, b) + n += sizeVarint(uint64((p.Tag << 3) | WireEndGroup)) + return +} + +// Encode a slice of bools ([]bool). +func (o *Buffer) enc_slice_bool(p *Properties, base structPointer) error { + s := *structPointer_BoolSlice(base, p.field) + l := len(s) + if l == 0 { + return ErrNil + } + for _, x := range s { + o.buf = append(o.buf, p.tagcode...) + v := uint64(0) + if x { + v = 1 + } + p.valEnc(o, v) + } + return nil +} + +func size_slice_bool(p *Properties, base structPointer) int { + s := *structPointer_BoolSlice(base, p.field) + l := len(s) + if l == 0 { + return 0 + } + return l * (len(p.tagcode) + 1) // each bool takes exactly one byte +} + +// Encode a slice of bools ([]bool) in packed format. +func (o *Buffer) enc_slice_packed_bool(p *Properties, base structPointer) error { + s := *structPointer_BoolSlice(base, p.field) + l := len(s) + if l == 0 { + return ErrNil + } + o.buf = append(o.buf, p.tagcode...) + o.EncodeVarint(uint64(l)) // each bool takes exactly one byte + for _, x := range s { + v := uint64(0) + if x { + v = 1 + } + p.valEnc(o, v) + } + return nil +} + +func size_slice_packed_bool(p *Properties, base structPointer) (n int) { + s := *structPointer_BoolSlice(base, p.field) + l := len(s) + if l == 0 { + return 0 + } + n += len(p.tagcode) + n += sizeVarint(uint64(l)) + n += l // each bool takes exactly one byte + return +} + +// Encode a slice of bytes ([]byte). +func (o *Buffer) enc_slice_byte(p *Properties, base structPointer) error { + s := *structPointer_Bytes(base, p.field) + if s == nil { + return ErrNil + } + o.buf = append(o.buf, p.tagcode...) + o.EncodeRawBytes(s) + return nil +} + +func (o *Buffer) enc_proto3_slice_byte(p *Properties, base structPointer) error { + s := *structPointer_Bytes(base, p.field) + if len(s) == 0 { + return ErrNil + } + o.buf = append(o.buf, p.tagcode...) + o.EncodeRawBytes(s) + return nil +} + +func size_slice_byte(p *Properties, base structPointer) (n int) { + s := *structPointer_Bytes(base, p.field) + if s == nil && !p.oneof { + return 0 + } + n += len(p.tagcode) + n += sizeRawBytes(s) + return +} + +func size_proto3_slice_byte(p *Properties, base structPointer) (n int) { + s := *structPointer_Bytes(base, p.field) + if len(s) == 0 && !p.oneof { + return 0 + } + n += len(p.tagcode) + n += sizeRawBytes(s) + return +} + +// Encode a slice of int32s ([]int32). +func (o *Buffer) enc_slice_int32(p *Properties, base structPointer) error { + s := structPointer_Word32Slice(base, p.field) + l := s.Len() + if l == 0 { + return ErrNil + } + for i := 0; i < l; i++ { + o.buf = append(o.buf, p.tagcode...) + x := int32(s.Index(i)) // permit sign extension to use full 64-bit range + p.valEnc(o, uint64(x)) + } + return nil +} + +func size_slice_int32(p *Properties, base structPointer) (n int) { + s := structPointer_Word32Slice(base, p.field) + l := s.Len() + if l == 0 { + return 0 + } + for i := 0; i < l; i++ { + n += len(p.tagcode) + x := int32(s.Index(i)) // permit sign extension to use full 64-bit range + n += p.valSize(uint64(x)) + } + return +} + +// Encode a slice of int32s ([]int32) in packed format. +func (o *Buffer) enc_slice_packed_int32(p *Properties, base structPointer) error { + s := structPointer_Word32Slice(base, p.field) + l := s.Len() + if l == 0 { + return ErrNil + } + // TODO: Reuse a Buffer. + buf := NewBuffer(nil) + for i := 0; i < l; i++ { + x := int32(s.Index(i)) // permit sign extension to use full 64-bit range + p.valEnc(buf, uint64(x)) + } + + o.buf = append(o.buf, p.tagcode...) + o.EncodeVarint(uint64(len(buf.buf))) + o.buf = append(o.buf, buf.buf...) + return nil +} + +func size_slice_packed_int32(p *Properties, base structPointer) (n int) { + s := structPointer_Word32Slice(base, p.field) + l := s.Len() + if l == 0 { + return 0 + } + var bufSize int + for i := 0; i < l; i++ { + x := int32(s.Index(i)) // permit sign extension to use full 64-bit range + bufSize += p.valSize(uint64(x)) + } + + n += len(p.tagcode) + n += sizeVarint(uint64(bufSize)) + n += bufSize + return +} + +// Encode a slice of uint32s ([]uint32). +// Exactly the same as int32, except for no sign extension. +func (o *Buffer) enc_slice_uint32(p *Properties, base structPointer) error { + s := structPointer_Word32Slice(base, p.field) + l := s.Len() + if l == 0 { + return ErrNil + } + for i := 0; i < l; i++ { + o.buf = append(o.buf, p.tagcode...) + x := s.Index(i) + p.valEnc(o, uint64(x)) + } + return nil +} + +func size_slice_uint32(p *Properties, base structPointer) (n int) { + s := structPointer_Word32Slice(base, p.field) + l := s.Len() + if l == 0 { + return 0 + } + for i := 0; i < l; i++ { + n += len(p.tagcode) + x := s.Index(i) + n += p.valSize(uint64(x)) + } + return +} + +// Encode a slice of uint32s ([]uint32) in packed format. +// Exactly the same as int32, except for no sign extension. +func (o *Buffer) enc_slice_packed_uint32(p *Properties, base structPointer) error { + s := structPointer_Word32Slice(base, p.field) + l := s.Len() + if l == 0 { + return ErrNil + } + // TODO: Reuse a Buffer. + buf := NewBuffer(nil) + for i := 0; i < l; i++ { + p.valEnc(buf, uint64(s.Index(i))) + } + + o.buf = append(o.buf, p.tagcode...) + o.EncodeVarint(uint64(len(buf.buf))) + o.buf = append(o.buf, buf.buf...) + return nil +} + +func size_slice_packed_uint32(p *Properties, base structPointer) (n int) { + s := structPointer_Word32Slice(base, p.field) + l := s.Len() + if l == 0 { + return 0 + } + var bufSize int + for i := 0; i < l; i++ { + bufSize += p.valSize(uint64(s.Index(i))) + } + + n += len(p.tagcode) + n += sizeVarint(uint64(bufSize)) + n += bufSize + return +} + +// Encode a slice of int64s ([]int64). +func (o *Buffer) enc_slice_int64(p *Properties, base structPointer) error { + s := structPointer_Word64Slice(base, p.field) + l := s.Len() + if l == 0 { + return ErrNil + } + for i := 0; i < l; i++ { + o.buf = append(o.buf, p.tagcode...) + p.valEnc(o, s.Index(i)) + } + return nil +} + +func size_slice_int64(p *Properties, base structPointer) (n int) { + s := structPointer_Word64Slice(base, p.field) + l := s.Len() + if l == 0 { + return 0 + } + for i := 0; i < l; i++ { + n += len(p.tagcode) + n += p.valSize(s.Index(i)) + } + return +} + +// Encode a slice of int64s ([]int64) in packed format. +func (o *Buffer) enc_slice_packed_int64(p *Properties, base structPointer) error { + s := structPointer_Word64Slice(base, p.field) + l := s.Len() + if l == 0 { + return ErrNil + } + // TODO: Reuse a Buffer. + buf := NewBuffer(nil) + for i := 0; i < l; i++ { + p.valEnc(buf, s.Index(i)) + } + + o.buf = append(o.buf, p.tagcode...) + o.EncodeVarint(uint64(len(buf.buf))) + o.buf = append(o.buf, buf.buf...) + return nil +} + +func size_slice_packed_int64(p *Properties, base structPointer) (n int) { + s := structPointer_Word64Slice(base, p.field) + l := s.Len() + if l == 0 { + return 0 + } + var bufSize int + for i := 0; i < l; i++ { + bufSize += p.valSize(s.Index(i)) + } + + n += len(p.tagcode) + n += sizeVarint(uint64(bufSize)) + n += bufSize + return +} + +// Encode a slice of slice of bytes ([][]byte). +func (o *Buffer) enc_slice_slice_byte(p *Properties, base structPointer) error { + ss := *structPointer_BytesSlice(base, p.field) + l := len(ss) + if l == 0 { + return ErrNil + } + for i := 0; i < l; i++ { + o.buf = append(o.buf, p.tagcode...) + o.EncodeRawBytes(ss[i]) + } + return nil +} + +func size_slice_slice_byte(p *Properties, base structPointer) (n int) { + ss := *structPointer_BytesSlice(base, p.field) + l := len(ss) + if l == 0 { + return 0 + } + n += l * len(p.tagcode) + for i := 0; i < l; i++ { + n += sizeRawBytes(ss[i]) + } + return +} + +// Encode a slice of strings ([]string). +func (o *Buffer) enc_slice_string(p *Properties, base structPointer) error { + ss := *structPointer_StringSlice(base, p.field) + l := len(ss) + for i := 0; i < l; i++ { + o.buf = append(o.buf, p.tagcode...) + o.EncodeStringBytes(ss[i]) + } + return nil +} + +func size_slice_string(p *Properties, base structPointer) (n int) { + ss := *structPointer_StringSlice(base, p.field) + l := len(ss) + n += l * len(p.tagcode) + for i := 0; i < l; i++ { + n += sizeStringBytes(ss[i]) + } + return +} + +// Encode a slice of message structs ([]*struct). +func (o *Buffer) enc_slice_struct_message(p *Properties, base structPointer) error { + var state errorState + s := structPointer_StructPointerSlice(base, p.field) + l := s.Len() + + for i := 0; i < l; i++ { + structp := s.Index(i) + if structPointer_IsNil(structp) { + return errRepeatedHasNil + } + + // Can the object marshal itself? + if p.isMarshaler { + m := structPointer_Interface(structp, p.stype).(Marshaler) + data, err := m.Marshal() + if err != nil && !state.shouldContinue(err, nil) { + return err + } + o.buf = append(o.buf, p.tagcode...) + o.EncodeRawBytes(data) + continue + } + + o.buf = append(o.buf, p.tagcode...) + err := o.enc_len_struct(p.sprop, structp, &state) + if err != nil && !state.shouldContinue(err, nil) { + if err == ErrNil { + return errRepeatedHasNil + } + return err + } + } + return state.err +} + +func size_slice_struct_message(p *Properties, base structPointer) (n int) { + s := structPointer_StructPointerSlice(base, p.field) + l := s.Len() + n += l * len(p.tagcode) + for i := 0; i < l; i++ { + structp := s.Index(i) + if structPointer_IsNil(structp) { + return // return the size up to this point + } + + // Can the object marshal itself? + if p.isMarshaler { + m := structPointer_Interface(structp, p.stype).(Marshaler) + data, _ := m.Marshal() + n += len(p.tagcode) + n += sizeRawBytes(data) + continue + } + + n0 := size_struct(p.sprop, structp) + n1 := sizeVarint(uint64(n0)) // size of encoded length + n += n0 + n1 + } + return +} + +// Encode a slice of group structs ([]*struct). +func (o *Buffer) enc_slice_struct_group(p *Properties, base structPointer) error { + var state errorState + s := structPointer_StructPointerSlice(base, p.field) + l := s.Len() + + for i := 0; i < l; i++ { + b := s.Index(i) + if structPointer_IsNil(b) { + return errRepeatedHasNil + } + + o.EncodeVarint(uint64((p.Tag << 3) | WireStartGroup)) + + err := o.enc_struct(p.sprop, b) + + if err != nil && !state.shouldContinue(err, nil) { + if err == ErrNil { + return errRepeatedHasNil + } + return err + } + + o.EncodeVarint(uint64((p.Tag << 3) | WireEndGroup)) + } + return state.err +} + +func size_slice_struct_group(p *Properties, base structPointer) (n int) { + s := structPointer_StructPointerSlice(base, p.field) + l := s.Len() + + n += l * sizeVarint(uint64((p.Tag<<3)|WireStartGroup)) + n += l * sizeVarint(uint64((p.Tag<<3)|WireEndGroup)) + for i := 0; i < l; i++ { + b := s.Index(i) + if structPointer_IsNil(b) { + return // return size up to this point + } + + n += size_struct(p.sprop, b) + } + return +} + +// Encode an extension map. +func (o *Buffer) enc_map(p *Properties, base structPointer) error { + exts := structPointer_ExtMap(base, p.field) + if err := encodeExtensionsMap(*exts); err != nil { + return err + } + + return o.enc_map_body(*exts) +} + +func (o *Buffer) enc_exts(p *Properties, base structPointer) error { + exts := structPointer_Extensions(base, p.field) + if err := encodeExtensions(exts); err != nil { + return err + } + v, _ := exts.extensionsRead() + + return o.enc_map_body(v) +} + +func (o *Buffer) enc_map_body(v map[int32]Extension) error { + // Fast-path for common cases: zero or one extensions. + if len(v) <= 1 { + for _, e := range v { + o.buf = append(o.buf, e.enc...) + } + return nil + } + + // Sort keys to provide a deterministic encoding. + keys := make([]int, 0, len(v)) + for k := range v { + keys = append(keys, int(k)) + } + sort.Ints(keys) + + for _, k := range keys { + o.buf = append(o.buf, v[int32(k)].enc...) + } + return nil +} + +func size_map(p *Properties, base structPointer) int { + v := structPointer_ExtMap(base, p.field) + return extensionsMapSize(*v) +} + +func size_exts(p *Properties, base structPointer) int { + v := structPointer_Extensions(base, p.field) + return extensionsSize(v) +} + +// Encode a map field. +func (o *Buffer) enc_new_map(p *Properties, base structPointer) error { + var state errorState // XXX: or do we need to plumb this through? + + /* + A map defined as + map map_field = N; + is encoded in the same way as + message MapFieldEntry { + key_type key = 1; + value_type value = 2; + } + repeated MapFieldEntry map_field = N; + */ + + v := structPointer_NewAt(base, p.field, p.mtype).Elem() // map[K]V + if v.Len() == 0 { + return nil + } + + keycopy, valcopy, keybase, valbase := mapEncodeScratch(p.mtype) + + enc := func() error { + if err := p.mkeyprop.enc(o, p.mkeyprop, keybase); err != nil { + return err + } + if err := p.mvalprop.enc(o, p.mvalprop, valbase); err != nil && err != ErrNil { + return err + } + return nil + } + + // Don't sort map keys. It is not required by the spec, and C++ doesn't do it. + for _, key := range v.MapKeys() { + val := v.MapIndex(key) + + keycopy.Set(key) + valcopy.Set(val) + + o.buf = append(o.buf, p.tagcode...) + if err := o.enc_len_thing(enc, &state); err != nil { + return err + } + } + return nil +} + +func size_new_map(p *Properties, base structPointer) int { + v := structPointer_NewAt(base, p.field, p.mtype).Elem() // map[K]V + + keycopy, valcopy, keybase, valbase := mapEncodeScratch(p.mtype) + + n := 0 + for _, key := range v.MapKeys() { + val := v.MapIndex(key) + keycopy.Set(key) + valcopy.Set(val) + + // Tag codes for key and val are the responsibility of the sub-sizer. + keysize := p.mkeyprop.size(p.mkeyprop, keybase) + valsize := p.mvalprop.size(p.mvalprop, valbase) + entry := keysize + valsize + // Add on tag code and length of map entry itself. + n += len(p.tagcode) + sizeVarint(uint64(entry)) + entry + } + return n +} + +// mapEncodeScratch returns a new reflect.Value matching the map's value type, +// and a structPointer suitable for passing to an encoder or sizer. +func mapEncodeScratch(mapType reflect.Type) (keycopy, valcopy reflect.Value, keybase, valbase structPointer) { + // Prepare addressable doubly-indirect placeholders for the key and value types. + // This is needed because the element-type encoders expect **T, but the map iteration produces T. + + keycopy = reflect.New(mapType.Key()).Elem() // addressable K + keyptr := reflect.New(reflect.PtrTo(keycopy.Type())).Elem() // addressable *K + keyptr.Set(keycopy.Addr()) // + keybase = toStructPointer(keyptr.Addr()) // **K + + // Value types are more varied and require special handling. + switch mapType.Elem().Kind() { + case reflect.Slice: + // []byte + var dummy []byte + valcopy = reflect.ValueOf(&dummy).Elem() // addressable []byte + valbase = toStructPointer(valcopy.Addr()) + case reflect.Ptr: + // message; the generated field type is map[K]*Msg (so V is *Msg), + // so we only need one level of indirection. + valcopy = reflect.New(mapType.Elem()).Elem() // addressable V + valbase = toStructPointer(valcopy.Addr()) + default: + // everything else + valcopy = reflect.New(mapType.Elem()).Elem() // addressable V + valptr := reflect.New(reflect.PtrTo(valcopy.Type())).Elem() // addressable *V + valptr.Set(valcopy.Addr()) // + valbase = toStructPointer(valptr.Addr()) // **V + } + return +} + +// Encode a struct. +func (o *Buffer) enc_struct(prop *StructProperties, base structPointer) error { + var state errorState + // Encode fields in tag order so that decoders may use optimizations + // that depend on the ordering. + // https://developers.google.com/protocol-buffers/docs/encoding#order + for _, i := range prop.order { + p := prop.Prop[i] + if p.enc != nil { + err := p.enc(o, p, base) + if err != nil { + if err == ErrNil { + if p.Required && state.err == nil { + state.err = &RequiredNotSetError{p.Name} + } + } else if err == errRepeatedHasNil { + // Give more context to nil values in repeated fields. + return errors.New("repeated field " + p.OrigName + " has nil element") + } else if !state.shouldContinue(err, p) { + return err + } + } + if len(o.buf) > maxMarshalSize { + return ErrTooLarge + } + } + } + + // Do oneof fields. + if prop.oneofMarshaler != nil { + m := structPointer_Interface(base, prop.stype).(Message) + if err := prop.oneofMarshaler(m, o); err == ErrNil { + return errOneofHasNil + } else if err != nil { + return err + } + } + + // Add unrecognized fields at the end. + if prop.unrecField.IsValid() { + v := *structPointer_Bytes(base, prop.unrecField) + if len(o.buf)+len(v) > maxMarshalSize { + return ErrTooLarge + } + if len(v) > 0 { + o.buf = append(o.buf, v...) + } + } + + return state.err +} + +func size_struct(prop *StructProperties, base structPointer) (n int) { + for _, i := range prop.order { + p := prop.Prop[i] + if p.size != nil { + n += p.size(p, base) + } + } + + // Add unrecognized fields at the end. + if prop.unrecField.IsValid() { + v := *structPointer_Bytes(base, prop.unrecField) + n += len(v) + } + + // Factor in any oneof fields. + if prop.oneofSizer != nil { + m := structPointer_Interface(base, prop.stype).(Message) + n += prop.oneofSizer(m) + } + + return +} + +var zeroes [20]byte // longer than any conceivable sizeVarint + +// Encode a struct, preceded by its encoded length (as a varint). +func (o *Buffer) enc_len_struct(prop *StructProperties, base structPointer, state *errorState) error { + return o.enc_len_thing(func() error { return o.enc_struct(prop, base) }, state) +} + +// Encode something, preceded by its encoded length (as a varint). +func (o *Buffer) enc_len_thing(enc func() error, state *errorState) error { + iLen := len(o.buf) + o.buf = append(o.buf, 0, 0, 0, 0) // reserve four bytes for length + iMsg := len(o.buf) + err := enc() + if err != nil && !state.shouldContinue(err, nil) { + return err + } + lMsg := len(o.buf) - iMsg + lLen := sizeVarint(uint64(lMsg)) + switch x := lLen - (iMsg - iLen); { + case x > 0: // actual length is x bytes larger than the space we reserved + // Move msg x bytes right. + o.buf = append(o.buf, zeroes[:x]...) + copy(o.buf[iMsg+x:], o.buf[iMsg:iMsg+lMsg]) + case x < 0: // actual length is x bytes smaller than the space we reserved + // Move msg x bytes left. + copy(o.buf[iMsg+x:], o.buf[iMsg:iMsg+lMsg]) + o.buf = o.buf[:len(o.buf)+x] // x is negative + } + // Encode the length in the reserved space. + o.buf = o.buf[:iLen] + o.EncodeVarint(uint64(lMsg)) + o.buf = o.buf[:len(o.buf)+lMsg] + return state.err +} + +// errorState maintains the first error that occurs and updates that error +// with additional context. +type errorState struct { + err error +} + +// shouldContinue reports whether encoding should continue upon encountering the +// given error. If the error is RequiredNotSetError, shouldContinue returns true +// and, if this is the first appearance of that error, remembers it for future +// reporting. +// +// If prop is not nil, it may update any error with additional context about the +// field with the error. +func (s *errorState) shouldContinue(err error, prop *Properties) bool { + // Ignore unset required fields. + reqNotSet, ok := err.(*RequiredNotSetError) + if !ok { + return false + } + if s.err == nil { + if prop != nil { + err = &RequiredNotSetError{prop.Name + "." + reqNotSet.field} + } + s.err = err + } + return true +} diff --git a/vendor/github.com/golang/protobuf/proto/equal.go b/vendor/github.com/golang/protobuf/proto/equal.go new file mode 100644 index 0000000..8b16f95 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/equal.go @@ -0,0 +1,296 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2011 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Protocol buffer comparison. + +package proto + +import ( + "bytes" + "log" + "reflect" + "strings" +) + +/* +Equal returns true iff protocol buffers a and b are equal. +The arguments must both be pointers to protocol buffer structs. + +Equality is defined in this way: + - Two messages are equal iff they are the same type, + corresponding fields are equal, unknown field sets + are equal, and extensions sets are equal. + - Two set scalar fields are equal iff their values are equal. + If the fields are of a floating-point type, remember that + NaN != x for all x, including NaN. If the message is defined + in a proto3 .proto file, fields are not "set"; specifically, + zero length proto3 "bytes" fields are equal (nil == {}). + - Two repeated fields are equal iff their lengths are the same, + and their corresponding elements are equal (a "bytes" field, + although represented by []byte, is not a repeated field) + - Two unset fields are equal. + - Two unknown field sets are equal if their current + encoded state is equal. + - Two extension sets are equal iff they have corresponding + elements that are pairwise equal. + - Every other combination of things are not equal. + +The return value is undefined if a and b are not protocol buffers. +*/ +func Equal(a, b Message) bool { + if a == nil || b == nil { + return a == b + } + v1, v2 := reflect.ValueOf(a), reflect.ValueOf(b) + if v1.Type() != v2.Type() { + return false + } + if v1.Kind() == reflect.Ptr { + if v1.IsNil() { + return v2.IsNil() + } + if v2.IsNil() { + return false + } + v1, v2 = v1.Elem(), v2.Elem() + } + if v1.Kind() != reflect.Struct { + return false + } + return equalStruct(v1, v2) +} + +// v1 and v2 are known to have the same type. +func equalStruct(v1, v2 reflect.Value) bool { + sprop := GetProperties(v1.Type()) + for i := 0; i < v1.NumField(); i++ { + f := v1.Type().Field(i) + if strings.HasPrefix(f.Name, "XXX_") { + continue + } + f1, f2 := v1.Field(i), v2.Field(i) + if f.Type.Kind() == reflect.Ptr { + if n1, n2 := f1.IsNil(), f2.IsNil(); n1 && n2 { + // both unset + continue + } else if n1 != n2 { + // set/unset mismatch + return false + } + b1, ok := f1.Interface().(raw) + if ok { + b2 := f2.Interface().(raw) + // RawMessage + if !bytes.Equal(b1.Bytes(), b2.Bytes()) { + return false + } + continue + } + f1, f2 = f1.Elem(), f2.Elem() + } + if !equalAny(f1, f2, sprop.Prop[i]) { + return false + } + } + + if em1 := v1.FieldByName("XXX_InternalExtensions"); em1.IsValid() { + em2 := v2.FieldByName("XXX_InternalExtensions") + if !equalExtensions(v1.Type(), em1.Interface().(XXX_InternalExtensions), em2.Interface().(XXX_InternalExtensions)) { + return false + } + } + + if em1 := v1.FieldByName("XXX_extensions"); em1.IsValid() { + em2 := v2.FieldByName("XXX_extensions") + if !equalExtMap(v1.Type(), em1.Interface().(map[int32]Extension), em2.Interface().(map[int32]Extension)) { + return false + } + } + + uf := v1.FieldByName("XXX_unrecognized") + if !uf.IsValid() { + return true + } + + u1 := uf.Bytes() + u2 := v2.FieldByName("XXX_unrecognized").Bytes() + if !bytes.Equal(u1, u2) { + return false + } + + return true +} + +// v1 and v2 are known to have the same type. +// prop may be nil. +func equalAny(v1, v2 reflect.Value, prop *Properties) bool { + if v1.Type() == protoMessageType { + m1, _ := v1.Interface().(Message) + m2, _ := v2.Interface().(Message) + return Equal(m1, m2) + } + switch v1.Kind() { + case reflect.Bool: + return v1.Bool() == v2.Bool() + case reflect.Float32, reflect.Float64: + return v1.Float() == v2.Float() + case reflect.Int32, reflect.Int64: + return v1.Int() == v2.Int() + case reflect.Interface: + // Probably a oneof field; compare the inner values. + n1, n2 := v1.IsNil(), v2.IsNil() + if n1 || n2 { + return n1 == n2 + } + e1, e2 := v1.Elem(), v2.Elem() + if e1.Type() != e2.Type() { + return false + } + return equalAny(e1, e2, nil) + case reflect.Map: + if v1.Len() != v2.Len() { + return false + } + for _, key := range v1.MapKeys() { + val2 := v2.MapIndex(key) + if !val2.IsValid() { + // This key was not found in the second map. + return false + } + if !equalAny(v1.MapIndex(key), val2, nil) { + return false + } + } + return true + case reflect.Ptr: + // Maps may have nil values in them, so check for nil. + if v1.IsNil() && v2.IsNil() { + return true + } + if v1.IsNil() != v2.IsNil() { + return false + } + return equalAny(v1.Elem(), v2.Elem(), prop) + case reflect.Slice: + if v1.Type().Elem().Kind() == reflect.Uint8 { + // short circuit: []byte + + // Edge case: if this is in a proto3 message, a zero length + // bytes field is considered the zero value. + if prop != nil && prop.proto3 && v1.Len() == 0 && v2.Len() == 0 { + return true + } + if v1.IsNil() != v2.IsNil() { + return false + } + return bytes.Equal(v1.Interface().([]byte), v2.Interface().([]byte)) + } + + if v1.Len() != v2.Len() { + return false + } + for i := 0; i < v1.Len(); i++ { + if !equalAny(v1.Index(i), v2.Index(i), prop) { + return false + } + } + return true + case reflect.String: + return v1.Interface().(string) == v2.Interface().(string) + case reflect.Struct: + return equalStruct(v1, v2) + case reflect.Uint32, reflect.Uint64: + return v1.Uint() == v2.Uint() + } + + // unknown type, so not a protocol buffer + log.Printf("proto: don't know how to compare %v", v1) + return false +} + +// base is the struct type that the extensions are based on. +// x1 and x2 are InternalExtensions. +func equalExtensions(base reflect.Type, x1, x2 XXX_InternalExtensions) bool { + em1, _ := x1.extensionsRead() + em2, _ := x2.extensionsRead() + return equalExtMap(base, em1, em2) +} + +func equalExtMap(base reflect.Type, em1, em2 map[int32]Extension) bool { + if len(em1) != len(em2) { + return false + } + + for extNum, e1 := range em1 { + e2, ok := em2[extNum] + if !ok { + return false + } + + m1, m2 := e1.value, e2.value + + if m1 != nil && m2 != nil { + // Both are unencoded. + if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) { + return false + } + continue + } + + // At least one is encoded. To do a semantically correct comparison + // we need to unmarshal them first. + var desc *ExtensionDesc + if m := extensionMaps[base]; m != nil { + desc = m[extNum] + } + if desc == nil { + log.Printf("proto: don't know how to compare extension %d of %v", extNum, base) + continue + } + var err error + if m1 == nil { + m1, err = decodeExtension(e1.enc, desc) + } + if m2 == nil && err == nil { + m2, err = decodeExtension(e2.enc, desc) + } + if err != nil { + // The encoded form is invalid. + log.Printf("proto: badly encoded extension %d of %v: %v", extNum, base, err) + return false + } + if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) { + return false + } + } + + return true +} diff --git a/vendor/github.com/golang/protobuf/proto/extensions.go b/vendor/github.com/golang/protobuf/proto/extensions.go new file mode 100644 index 0000000..9f484f5 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/extensions.go @@ -0,0 +1,555 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2010 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +package proto + +/* + * Types and routines for supporting protocol buffer extensions. + */ + +import ( + "errors" + "fmt" + "reflect" + "strconv" + "sync" +) + +// ErrMissingExtension is the error returned by GetExtension if the named extension is not in the message. +var ErrMissingExtension = errors.New("proto: missing extension") + +// ExtensionRange represents a range of message extensions for a protocol buffer. +// Used in code generated by the protocol compiler. +type ExtensionRange struct { + Start, End int32 // both inclusive +} + +// extendableProto is an interface implemented by any protocol buffer generated by the current +// proto compiler that may be extended. +type extendableProto interface { + Message + ExtensionRangeArray() []ExtensionRange + extensionsWrite() map[int32]Extension + extensionsRead() (map[int32]Extension, sync.Locker) +} + +// extendableProtoV1 is an interface implemented by a protocol buffer generated by the previous +// version of the proto compiler that may be extended. +type extendableProtoV1 interface { + Message + ExtensionRangeArray() []ExtensionRange + ExtensionMap() map[int32]Extension +} + +// extensionAdapter is a wrapper around extendableProtoV1 that implements extendableProto. +type extensionAdapter struct { + extendableProtoV1 +} + +func (e extensionAdapter) extensionsWrite() map[int32]Extension { + return e.ExtensionMap() +} + +func (e extensionAdapter) extensionsRead() (map[int32]Extension, sync.Locker) { + return e.ExtensionMap(), notLocker{} +} + +// notLocker is a sync.Locker whose Lock and Unlock methods are nops. +type notLocker struct{} + +func (n notLocker) Lock() {} +func (n notLocker) Unlock() {} + +// extendable returns the extendableProto interface for the given generated proto message. +// If the proto message has the old extension format, it returns a wrapper that implements +// the extendableProto interface. +func extendable(p interface{}) (extendableProto, bool) { + if ep, ok := p.(extendableProto); ok { + return ep, ok + } + if ep, ok := p.(extendableProtoV1); ok { + return extensionAdapter{ep}, ok + } + return nil, false +} + +// XXX_InternalExtensions is an internal representation of proto extensions. +// +// Each generated message struct type embeds an anonymous XXX_InternalExtensions field, +// thus gaining the unexported 'extensions' method, which can be called only from the proto package. +// +// The methods of XXX_InternalExtensions are not concurrency safe in general, +// but calls to logically read-only methods such as has and get may be executed concurrently. +type XXX_InternalExtensions struct { + // The struct must be indirect so that if a user inadvertently copies a + // generated message and its embedded XXX_InternalExtensions, they + // avoid the mayhem of a copied mutex. + // + // The mutex serializes all logically read-only operations to p.extensionMap. + // It is up to the client to ensure that write operations to p.extensionMap are + // mutually exclusive with other accesses. + p *struct { + mu sync.Mutex + extensionMap map[int32]Extension + } +} + +// extensionsWrite returns the extension map, creating it on first use. +func (e *XXX_InternalExtensions) extensionsWrite() map[int32]Extension { + if e.p == nil { + e.p = new(struct { + mu sync.Mutex + extensionMap map[int32]Extension + }) + e.p.extensionMap = make(map[int32]Extension) + } + return e.p.extensionMap +} + +// extensionsRead returns the extensions map for read-only use. It may be nil. +// The caller must hold the returned mutex's lock when accessing Elements within the map. +func (e *XXX_InternalExtensions) extensionsRead() (map[int32]Extension, sync.Locker) { + if e.p == nil { + return nil, nil + } + return e.p.extensionMap, &e.p.mu +} + +var extendableProtoType = reflect.TypeOf((*extendableProto)(nil)).Elem() +var extendableProtoV1Type = reflect.TypeOf((*extendableProtoV1)(nil)).Elem() + +// ExtensionDesc represents an extension specification. +// Used in generated code from the protocol compiler. +type ExtensionDesc struct { + ExtendedType Message // nil pointer to the type that is being extended + ExtensionType interface{} // nil pointer to the extension type + Field int32 // field number + Name string // fully-qualified name of extension, for text formatting + Tag string // protobuf tag style +} + +func (ed *ExtensionDesc) repeated() bool { + t := reflect.TypeOf(ed.ExtensionType) + return t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 +} + +// Extension represents an extension in a message. +type Extension struct { + // When an extension is stored in a message using SetExtension + // only desc and value are set. When the message is marshaled + // enc will be set to the encoded form of the message. + // + // When a message is unmarshaled and contains extensions, each + // extension will have only enc set. When such an extension is + // accessed using GetExtension (or GetExtensions) desc and value + // will be set. + desc *ExtensionDesc + value interface{} + enc []byte +} + +// SetRawExtension is for testing only. +func SetRawExtension(base Message, id int32, b []byte) { + epb, ok := extendable(base) + if !ok { + return + } + extmap := epb.extensionsWrite() + extmap[id] = Extension{enc: b} +} + +// isExtensionField returns true iff the given field number is in an extension range. +func isExtensionField(pb extendableProto, field int32) bool { + for _, er := range pb.ExtensionRangeArray() { + if er.Start <= field && field <= er.End { + return true + } + } + return false +} + +// checkExtensionTypes checks that the given extension is valid for pb. +func checkExtensionTypes(pb extendableProto, extension *ExtensionDesc) error { + var pbi interface{} = pb + // Check the extended type. + if ea, ok := pbi.(extensionAdapter); ok { + pbi = ea.extendableProtoV1 + } + if a, b := reflect.TypeOf(pbi), reflect.TypeOf(extension.ExtendedType); a != b { + return errors.New("proto: bad extended type; " + b.String() + " does not extend " + a.String()) + } + // Check the range. + if !isExtensionField(pb, extension.Field) { + return errors.New("proto: bad extension number; not in declared ranges") + } + return nil +} + +// extPropKey is sufficient to uniquely identify an extension. +type extPropKey struct { + base reflect.Type + field int32 +} + +var extProp = struct { + sync.RWMutex + m map[extPropKey]*Properties +}{ + m: make(map[extPropKey]*Properties), +} + +func extensionProperties(ed *ExtensionDesc) *Properties { + key := extPropKey{base: reflect.TypeOf(ed.ExtendedType), field: ed.Field} + + extProp.RLock() + if prop, ok := extProp.m[key]; ok { + extProp.RUnlock() + return prop + } + extProp.RUnlock() + + extProp.Lock() + defer extProp.Unlock() + // Check again. + if prop, ok := extProp.m[key]; ok { + return prop + } + + prop := new(Properties) + prop.Init(reflect.TypeOf(ed.ExtensionType), "unknown_name", ed.Tag, nil) + extProp.m[key] = prop + return prop +} + +// encode encodes any unmarshaled (unencoded) extensions in e. +func encodeExtensions(e *XXX_InternalExtensions) error { + m, mu := e.extensionsRead() + if m == nil { + return nil // fast path + } + mu.Lock() + defer mu.Unlock() + return encodeExtensionsMap(m) +} + +// encode encodes any unmarshaled (unencoded) extensions in e. +func encodeExtensionsMap(m map[int32]Extension) error { + for k, e := range m { + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + + et := reflect.TypeOf(e.desc.ExtensionType) + props := extensionProperties(e.desc) + + p := NewBuffer(nil) + // If e.value has type T, the encoder expects a *struct{ X T }. + // Pass a *T with a zero field and hope it all works out. + x := reflect.New(et) + x.Elem().Set(reflect.ValueOf(e.value)) + if err := props.enc(p, props, toStructPointer(x)); err != nil { + return err + } + e.enc = p.buf + m[k] = e + } + return nil +} + +func extensionsSize(e *XXX_InternalExtensions) (n int) { + m, mu := e.extensionsRead() + if m == nil { + return 0 + } + mu.Lock() + defer mu.Unlock() + return extensionsMapSize(m) +} + +func extensionsMapSize(m map[int32]Extension) (n int) { + for _, e := range m { + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + n += len(e.enc) + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + + et := reflect.TypeOf(e.desc.ExtensionType) + props := extensionProperties(e.desc) + + // If e.value has type T, the encoder expects a *struct{ X T }. + // Pass a *T with a zero field and hope it all works out. + x := reflect.New(et) + x.Elem().Set(reflect.ValueOf(e.value)) + n += props.size(props, toStructPointer(x)) + } + return +} + +// HasExtension returns whether the given extension is present in pb. +func HasExtension(pb Message, extension *ExtensionDesc) bool { + // TODO: Check types, field numbers, etc.? + epb, ok := extendable(pb) + if !ok { + return false + } + extmap, mu := epb.extensionsRead() + if extmap == nil { + return false + } + mu.Lock() + _, ok = extmap[extension.Field] + mu.Unlock() + return ok +} + +// ClearExtension removes the given extension from pb. +func ClearExtension(pb Message, extension *ExtensionDesc) { + epb, ok := extendable(pb) + if !ok { + return + } + // TODO: Check types, field numbers, etc.? + extmap := epb.extensionsWrite() + delete(extmap, extension.Field) +} + +// GetExtension parses and returns the given extension of pb. +// If the extension is not present and has no default value it returns ErrMissingExtension. +func GetExtension(pb Message, extension *ExtensionDesc) (interface{}, error) { + epb, ok := extendable(pb) + if !ok { + return nil, errors.New("proto: not an extendable proto") + } + + if err := checkExtensionTypes(epb, extension); err != nil { + return nil, err + } + + emap, mu := epb.extensionsRead() + if emap == nil { + return defaultExtensionValue(extension) + } + mu.Lock() + defer mu.Unlock() + e, ok := emap[extension.Field] + if !ok { + // defaultExtensionValue returns the default value or + // ErrMissingExtension if there is no default. + return defaultExtensionValue(extension) + } + + if e.value != nil { + // Already decoded. Check the descriptor, though. + if e.desc != extension { + // This shouldn't happen. If it does, it means that + // GetExtension was called twice with two different + // descriptors with the same field number. + return nil, errors.New("proto: descriptor conflict") + } + return e.value, nil + } + + v, err := decodeExtension(e.enc, extension) + if err != nil { + return nil, err + } + + // Remember the decoded version and drop the encoded version. + // That way it is safe to mutate what we return. + e.value = v + e.desc = extension + e.enc = nil + emap[extension.Field] = e + return e.value, nil +} + +// defaultExtensionValue returns the default value for extension. +// If no default for an extension is defined ErrMissingExtension is returned. +func defaultExtensionValue(extension *ExtensionDesc) (interface{}, error) { + t := reflect.TypeOf(extension.ExtensionType) + props := extensionProperties(extension) + + sf, _, err := fieldDefault(t, props) + if err != nil { + return nil, err + } + + if sf == nil || sf.value == nil { + // There is no default value. + return nil, ErrMissingExtension + } + + if t.Kind() != reflect.Ptr { + // We do not need to return a Ptr, we can directly return sf.value. + return sf.value, nil + } + + // We need to return an interface{} that is a pointer to sf.value. + value := reflect.New(t).Elem() + value.Set(reflect.New(value.Type().Elem())) + if sf.kind == reflect.Int32 { + // We may have an int32 or an enum, but the underlying data is int32. + // Since we can't set an int32 into a non int32 reflect.value directly + // set it as a int32. + value.Elem().SetInt(int64(sf.value.(int32))) + } else { + value.Elem().Set(reflect.ValueOf(sf.value)) + } + return value.Interface(), nil +} + +// decodeExtension decodes an extension encoded in b. +func decodeExtension(b []byte, extension *ExtensionDesc) (interface{}, error) { + o := NewBuffer(b) + + t := reflect.TypeOf(extension.ExtensionType) + + props := extensionProperties(extension) + + // t is a pointer to a struct, pointer to basic type or a slice. + // Allocate a "field" to store the pointer/slice itself; the + // pointer/slice will be stored here. We pass + // the address of this field to props.dec. + // This passes a zero field and a *t and lets props.dec + // interpret it as a *struct{ x t }. + value := reflect.New(t).Elem() + + for { + // Discard wire type and field number varint. It isn't needed. + if _, err := o.DecodeVarint(); err != nil { + return nil, err + } + + if err := props.dec(o, props, toStructPointer(value.Addr())); err != nil { + return nil, err + } + + if o.index >= len(o.buf) { + break + } + } + return value.Interface(), nil +} + +// GetExtensions returns a slice of the extensions present in pb that are also listed in es. +// The returned slice has the same length as es; missing extensions will appear as nil elements. +func GetExtensions(pb Message, es []*ExtensionDesc) (extensions []interface{}, err error) { + epb, ok := extendable(pb) + if !ok { + return nil, errors.New("proto: not an extendable proto") + } + extensions = make([]interface{}, len(es)) + for i, e := range es { + extensions[i], err = GetExtension(epb, e) + if err == ErrMissingExtension { + err = nil + } + if err != nil { + return + } + } + return +} + +// SetExtension sets the specified extension of pb to the specified value. +func SetExtension(pb Message, extension *ExtensionDesc, value interface{}) error { + epb, ok := extendable(pb) + if !ok { + return errors.New("proto: not an extendable proto") + } + if err := checkExtensionTypes(epb, extension); err != nil { + return err + } + typ := reflect.TypeOf(extension.ExtensionType) + if typ != reflect.TypeOf(value) { + return errors.New("proto: bad extension value type") + } + // nil extension values need to be caught early, because the + // encoder can't distinguish an ErrNil due to a nil extension + // from an ErrNil due to a missing field. Extensions are + // always optional, so the encoder would just swallow the error + // and drop all the extensions from the encoded message. + if reflect.ValueOf(value).IsNil() { + return fmt.Errorf("proto: SetExtension called with nil value of type %T", value) + } + + extmap := epb.extensionsWrite() + extmap[extension.Field] = Extension{desc: extension, value: value} + return nil +} + +// ClearAllExtensions clears all extensions from pb. +func ClearAllExtensions(pb Message) { + epb, ok := extendable(pb) + if !ok { + return + } + m := epb.extensionsWrite() + for k := range m { + delete(m, k) + } +} + +// A global registry of extensions. +// The generated code will register the generated descriptors by calling RegisterExtension. + +var extensionMaps = make(map[reflect.Type]map[int32]*ExtensionDesc) + +// RegisterExtension is called from the generated code. +func RegisterExtension(desc *ExtensionDesc) { + st := reflect.TypeOf(desc.ExtendedType).Elem() + m := extensionMaps[st] + if m == nil { + m = make(map[int32]*ExtensionDesc) + extensionMaps[st] = m + } + if _, ok := m[desc.Field]; ok { + panic("proto: duplicate extension registered: " + st.String() + " " + strconv.Itoa(int(desc.Field))) + } + m[desc.Field] = desc +} + +// RegisteredExtensions returns a map of the registered extensions of a +// protocol buffer struct, indexed by the extension number. +// The argument pb should be a nil pointer to the struct type. +func RegisteredExtensions(pb Message) map[int32]*ExtensionDesc { + return extensionMaps[reflect.TypeOf(pb).Elem()] +} diff --git a/vendor/github.com/golang/protobuf/proto/lib.go b/vendor/github.com/golang/protobuf/proto/lib.go new file mode 100644 index 0000000..170b8e8 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/lib.go @@ -0,0 +1,898 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2010 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +/* +Package proto converts data structures to and from the wire format of +protocol buffers. It works in concert with the Go source code generated +for .proto files by the protocol compiler. + +A summary of the properties of the protocol buffer interface +for a protocol buffer variable v: + + - Names are turned from camel_case to CamelCase for export. + - There are no methods on v to set fields; just treat + them as structure fields. + - There are getters that return a field's value if set, + and return the field's default value if unset. + The getters work even if the receiver is a nil message. + - The zero value for a struct is its correct initialization state. + All desired fields must be set before marshaling. + - A Reset() method will restore a protobuf struct to its zero state. + - Non-repeated fields are pointers to the values; nil means unset. + That is, optional or required field int32 f becomes F *int32. + - Repeated fields are slices. + - Helper functions are available to aid the setting of fields. + msg.Foo = proto.String("hello") // set field + - Constants are defined to hold the default values of all fields that + have them. They have the form Default_StructName_FieldName. + Because the getter methods handle defaulted values, + direct use of these constants should be rare. + - Enums are given type names and maps from names to values. + Enum values are prefixed by the enclosing message's name, or by the + enum's type name if it is a top-level enum. Enum types have a String + method, and a Enum method to assist in message construction. + - Nested messages, groups and enums have type names prefixed with the name of + the surrounding message type. + - Extensions are given descriptor names that start with E_, + followed by an underscore-delimited list of the nested messages + that contain it (if any) followed by the CamelCased name of the + extension field itself. HasExtension, ClearExtension, GetExtension + and SetExtension are functions for manipulating extensions. + - Oneof field sets are given a single field in their message, + with distinguished wrapper types for each possible field value. + - Marshal and Unmarshal are functions to encode and decode the wire format. + +When the .proto file specifies `syntax="proto3"`, there are some differences: + + - Non-repeated fields of non-message type are values instead of pointers. + - Getters are only generated for message and oneof fields. + - Enum types do not get an Enum method. + +The simplest way to describe this is to see an example. +Given file test.proto, containing + + package example; + + enum FOO { X = 17; } + + message Test { + required string label = 1; + optional int32 type = 2 [default=77]; + repeated int64 reps = 3; + optional group OptionalGroup = 4 { + required string RequiredField = 5; + } + oneof union { + int32 number = 6; + string name = 7; + } + } + +The resulting file, test.pb.go, is: + + package example + + import proto "github.com/golang/protobuf/proto" + import math "math" + + type FOO int32 + const ( + FOO_X FOO = 17 + ) + var FOO_name = map[int32]string{ + 17: "X", + } + var FOO_value = map[string]int32{ + "X": 17, + } + + func (x FOO) Enum() *FOO { + p := new(FOO) + *p = x + return p + } + func (x FOO) String() string { + return proto.EnumName(FOO_name, int32(x)) + } + func (x *FOO) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(FOO_value, data) + if err != nil { + return err + } + *x = FOO(value) + return nil + } + + type Test struct { + Label *string `protobuf:"bytes,1,req,name=label" json:"label,omitempty"` + Type *int32 `protobuf:"varint,2,opt,name=type,def=77" json:"type,omitempty"` + Reps []int64 `protobuf:"varint,3,rep,name=reps" json:"reps,omitempty"` + Optionalgroup *Test_OptionalGroup `protobuf:"group,4,opt,name=OptionalGroup" json:"optionalgroup,omitempty"` + // Types that are valid to be assigned to Union: + // *Test_Number + // *Test_Name + Union isTest_Union `protobuf_oneof:"union"` + XXX_unrecognized []byte `json:"-"` + } + func (m *Test) Reset() { *m = Test{} } + func (m *Test) String() string { return proto.CompactTextString(m) } + func (*Test) ProtoMessage() {} + + type isTest_Union interface { + isTest_Union() + } + + type Test_Number struct { + Number int32 `protobuf:"varint,6,opt,name=number"` + } + type Test_Name struct { + Name string `protobuf:"bytes,7,opt,name=name"` + } + + func (*Test_Number) isTest_Union() {} + func (*Test_Name) isTest_Union() {} + + func (m *Test) GetUnion() isTest_Union { + if m != nil { + return m.Union + } + return nil + } + const Default_Test_Type int32 = 77 + + func (m *Test) GetLabel() string { + if m != nil && m.Label != nil { + return *m.Label + } + return "" + } + + func (m *Test) GetType() int32 { + if m != nil && m.Type != nil { + return *m.Type + } + return Default_Test_Type + } + + func (m *Test) GetOptionalgroup() *Test_OptionalGroup { + if m != nil { + return m.Optionalgroup + } + return nil + } + + type Test_OptionalGroup struct { + RequiredField *string `protobuf:"bytes,5,req" json:"RequiredField,omitempty"` + } + func (m *Test_OptionalGroup) Reset() { *m = Test_OptionalGroup{} } + func (m *Test_OptionalGroup) String() string { return proto.CompactTextString(m) } + + func (m *Test_OptionalGroup) GetRequiredField() string { + if m != nil && m.RequiredField != nil { + return *m.RequiredField + } + return "" + } + + func (m *Test) GetNumber() int32 { + if x, ok := m.GetUnion().(*Test_Number); ok { + return x.Number + } + return 0 + } + + func (m *Test) GetName() string { + if x, ok := m.GetUnion().(*Test_Name); ok { + return x.Name + } + return "" + } + + func init() { + proto.RegisterEnum("example.FOO", FOO_name, FOO_value) + } + +To create and play with a Test object: + + package main + + import ( + "log" + + "github.com/golang/protobuf/proto" + pb "./example.pb" + ) + + func main() { + test := &pb.Test{ + Label: proto.String("hello"), + Type: proto.Int32(17), + Reps: []int64{1, 2, 3}, + Optionalgroup: &pb.Test_OptionalGroup{ + RequiredField: proto.String("good bye"), + }, + Union: &pb.Test_Name{"fred"}, + } + data, err := proto.Marshal(test) + if err != nil { + log.Fatal("marshaling error: ", err) + } + newTest := &pb.Test{} + err = proto.Unmarshal(data, newTest) + if err != nil { + log.Fatal("unmarshaling error: ", err) + } + // Now test and newTest contain the same data. + if test.GetLabel() != newTest.GetLabel() { + log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel()) + } + // Use a type switch to determine which oneof was set. + switch u := test.Union.(type) { + case *pb.Test_Number: // u.Number contains the number. + case *pb.Test_Name: // u.Name contains the string. + } + // etc. + } +*/ +package proto + +import ( + "encoding/json" + "fmt" + "log" + "reflect" + "sort" + "strconv" + "sync" +) + +// Message is implemented by generated protocol buffer messages. +type Message interface { + Reset() + String() string + ProtoMessage() +} + +// Stats records allocation details about the protocol buffer encoders +// and decoders. Useful for tuning the library itself. +type Stats struct { + Emalloc uint64 // mallocs in encode + Dmalloc uint64 // mallocs in decode + Encode uint64 // number of encodes + Decode uint64 // number of decodes + Chit uint64 // number of cache hits + Cmiss uint64 // number of cache misses + Size uint64 // number of sizes +} + +// Set to true to enable stats collection. +const collectStats = false + +var stats Stats + +// GetStats returns a copy of the global Stats structure. +func GetStats() Stats { return stats } + +// A Buffer is a buffer manager for marshaling and unmarshaling +// protocol buffers. It may be reused between invocations to +// reduce memory usage. It is not necessary to use a Buffer; +// the global functions Marshal and Unmarshal create a +// temporary Buffer and are fine for most applications. +type Buffer struct { + buf []byte // encode/decode byte stream + index int // write point + + // pools of basic types to amortize allocation. + bools []bool + uint32s []uint32 + uint64s []uint64 + + // extra pools, only used with pointer_reflect.go + int32s []int32 + int64s []int64 + float32s []float32 + float64s []float64 +} + +// NewBuffer allocates a new Buffer and initializes its internal data to +// the contents of the argument slice. +func NewBuffer(e []byte) *Buffer { + return &Buffer{buf: e} +} + +// Reset resets the Buffer, ready for marshaling a new protocol buffer. +func (p *Buffer) Reset() { + p.buf = p.buf[0:0] // for reading/writing + p.index = 0 // for reading +} + +// SetBuf replaces the internal buffer with the slice, +// ready for unmarshaling the contents of the slice. +func (p *Buffer) SetBuf(s []byte) { + p.buf = s + p.index = 0 +} + +// Bytes returns the contents of the Buffer. +func (p *Buffer) Bytes() []byte { return p.buf } + +/* + * Helper routines for simplifying the creation of optional fields of basic type. + */ + +// Bool is a helper routine that allocates a new bool value +// to store v and returns a pointer to it. +func Bool(v bool) *bool { + return &v +} + +// Int32 is a helper routine that allocates a new int32 value +// to store v and returns a pointer to it. +func Int32(v int32) *int32 { + return &v +} + +// Int is a helper routine that allocates a new int32 value +// to store v and returns a pointer to it, but unlike Int32 +// its argument value is an int. +func Int(v int) *int32 { + p := new(int32) + *p = int32(v) + return p +} + +// Int64 is a helper routine that allocates a new int64 value +// to store v and returns a pointer to it. +func Int64(v int64) *int64 { + return &v +} + +// Float32 is a helper routine that allocates a new float32 value +// to store v and returns a pointer to it. +func Float32(v float32) *float32 { + return &v +} + +// Float64 is a helper routine that allocates a new float64 value +// to store v and returns a pointer to it. +func Float64(v float64) *float64 { + return &v +} + +// Uint32 is a helper routine that allocates a new uint32 value +// to store v and returns a pointer to it. +func Uint32(v uint32) *uint32 { + return &v +} + +// Uint64 is a helper routine that allocates a new uint64 value +// to store v and returns a pointer to it. +func Uint64(v uint64) *uint64 { + return &v +} + +// String is a helper routine that allocates a new string value +// to store v and returns a pointer to it. +func String(v string) *string { + return &v +} + +// EnumName is a helper function to simplify printing protocol buffer enums +// by name. Given an enum map and a value, it returns a useful string. +func EnumName(m map[int32]string, v int32) string { + s, ok := m[v] + if ok { + return s + } + return strconv.Itoa(int(v)) +} + +// UnmarshalJSONEnum is a helper function to simplify recovering enum int values +// from their JSON-encoded representation. Given a map from the enum's symbolic +// names to its int values, and a byte buffer containing the JSON-encoded +// value, it returns an int32 that can be cast to the enum type by the caller. +// +// The function can deal with both JSON representations, numeric and symbolic. +func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) { + if data[0] == '"' { + // New style: enums are strings. + var repr string + if err := json.Unmarshal(data, &repr); err != nil { + return -1, err + } + val, ok := m[repr] + if !ok { + return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr) + } + return val, nil + } + // Old style: enums are ints. + var val int32 + if err := json.Unmarshal(data, &val); err != nil { + return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName) + } + return val, nil +} + +// DebugPrint dumps the encoded data in b in a debugging format with a header +// including the string s. Used in testing but made available for general debugging. +func (p *Buffer) DebugPrint(s string, b []byte) { + var u uint64 + + obuf := p.buf + index := p.index + p.buf = b + p.index = 0 + depth := 0 + + fmt.Printf("\n--- %s ---\n", s) + +out: + for { + for i := 0; i < depth; i++ { + fmt.Print(" ") + } + + index := p.index + if index == len(p.buf) { + break + } + + op, err := p.DecodeVarint() + if err != nil { + fmt.Printf("%3d: fetching op err %v\n", index, err) + break out + } + tag := op >> 3 + wire := op & 7 + + switch wire { + default: + fmt.Printf("%3d: t=%3d unknown wire=%d\n", + index, tag, wire) + break out + + case WireBytes: + var r []byte + + r, err = p.DecodeRawBytes(false) + if err != nil { + break out + } + fmt.Printf("%3d: t=%3d bytes [%d]", index, tag, len(r)) + if len(r) <= 6 { + for i := 0; i < len(r); i++ { + fmt.Printf(" %.2x", r[i]) + } + } else { + for i := 0; i < 3; i++ { + fmt.Printf(" %.2x", r[i]) + } + fmt.Printf(" ..") + for i := len(r) - 3; i < len(r); i++ { + fmt.Printf(" %.2x", r[i]) + } + } + fmt.Printf("\n") + + case WireFixed32: + u, err = p.DecodeFixed32() + if err != nil { + fmt.Printf("%3d: t=%3d fix32 err %v\n", index, tag, err) + break out + } + fmt.Printf("%3d: t=%3d fix32 %d\n", index, tag, u) + + case WireFixed64: + u, err = p.DecodeFixed64() + if err != nil { + fmt.Printf("%3d: t=%3d fix64 err %v\n", index, tag, err) + break out + } + fmt.Printf("%3d: t=%3d fix64 %d\n", index, tag, u) + + case WireVarint: + u, err = p.DecodeVarint() + if err != nil { + fmt.Printf("%3d: t=%3d varint err %v\n", index, tag, err) + break out + } + fmt.Printf("%3d: t=%3d varint %d\n", index, tag, u) + + case WireStartGroup: + fmt.Printf("%3d: t=%3d start\n", index, tag) + depth++ + + case WireEndGroup: + depth-- + fmt.Printf("%3d: t=%3d end\n", index, tag) + } + } + + if depth != 0 { + fmt.Printf("%3d: start-end not balanced %d\n", p.index, depth) + } + fmt.Printf("\n") + + p.buf = obuf + p.index = index +} + +// SetDefaults sets unset protocol buffer fields to their default values. +// It only modifies fields that are both unset and have defined defaults. +// It recursively sets default values in any non-nil sub-messages. +func SetDefaults(pb Message) { + setDefaults(reflect.ValueOf(pb), true, false) +} + +// v is a pointer to a struct. +func setDefaults(v reflect.Value, recur, zeros bool) { + v = v.Elem() + + defaultMu.RLock() + dm, ok := defaults[v.Type()] + defaultMu.RUnlock() + if !ok { + dm = buildDefaultMessage(v.Type()) + defaultMu.Lock() + defaults[v.Type()] = dm + defaultMu.Unlock() + } + + for _, sf := range dm.scalars { + f := v.Field(sf.index) + if !f.IsNil() { + // field already set + continue + } + dv := sf.value + if dv == nil && !zeros { + // no explicit default, and don't want to set zeros + continue + } + fptr := f.Addr().Interface() // **T + // TODO: Consider batching the allocations we do here. + switch sf.kind { + case reflect.Bool: + b := new(bool) + if dv != nil { + *b = dv.(bool) + } + *(fptr.(**bool)) = b + case reflect.Float32: + f := new(float32) + if dv != nil { + *f = dv.(float32) + } + *(fptr.(**float32)) = f + case reflect.Float64: + f := new(float64) + if dv != nil { + *f = dv.(float64) + } + *(fptr.(**float64)) = f + case reflect.Int32: + // might be an enum + if ft := f.Type(); ft != int32PtrType { + // enum + f.Set(reflect.New(ft.Elem())) + if dv != nil { + f.Elem().SetInt(int64(dv.(int32))) + } + } else { + // int32 field + i := new(int32) + if dv != nil { + *i = dv.(int32) + } + *(fptr.(**int32)) = i + } + case reflect.Int64: + i := new(int64) + if dv != nil { + *i = dv.(int64) + } + *(fptr.(**int64)) = i + case reflect.String: + s := new(string) + if dv != nil { + *s = dv.(string) + } + *(fptr.(**string)) = s + case reflect.Uint8: + // exceptional case: []byte + var b []byte + if dv != nil { + db := dv.([]byte) + b = make([]byte, len(db)) + copy(b, db) + } else { + b = []byte{} + } + *(fptr.(*[]byte)) = b + case reflect.Uint32: + u := new(uint32) + if dv != nil { + *u = dv.(uint32) + } + *(fptr.(**uint32)) = u + case reflect.Uint64: + u := new(uint64) + if dv != nil { + *u = dv.(uint64) + } + *(fptr.(**uint64)) = u + default: + log.Printf("proto: can't set default for field %v (sf.kind=%v)", f, sf.kind) + } + } + + for _, ni := range dm.nested { + f := v.Field(ni) + // f is *T or []*T or map[T]*T + switch f.Kind() { + case reflect.Ptr: + if f.IsNil() { + continue + } + setDefaults(f, recur, zeros) + + case reflect.Slice: + for i := 0; i < f.Len(); i++ { + e := f.Index(i) + if e.IsNil() { + continue + } + setDefaults(e, recur, zeros) + } + + case reflect.Map: + for _, k := range f.MapKeys() { + e := f.MapIndex(k) + if e.IsNil() { + continue + } + setDefaults(e, recur, zeros) + } + } + } +} + +var ( + // defaults maps a protocol buffer struct type to a slice of the fields, + // with its scalar fields set to their proto-declared non-zero default values. + defaultMu sync.RWMutex + defaults = make(map[reflect.Type]defaultMessage) + + int32PtrType = reflect.TypeOf((*int32)(nil)) +) + +// defaultMessage represents information about the default values of a message. +type defaultMessage struct { + scalars []scalarField + nested []int // struct field index of nested messages +} + +type scalarField struct { + index int // struct field index + kind reflect.Kind // element type (the T in *T or []T) + value interface{} // the proto-declared default value, or nil +} + +// t is a struct type. +func buildDefaultMessage(t reflect.Type) (dm defaultMessage) { + sprop := GetProperties(t) + for _, prop := range sprop.Prop { + fi, ok := sprop.decoderTags.get(prop.Tag) + if !ok { + // XXX_unrecognized + continue + } + ft := t.Field(fi).Type + + sf, nested, err := fieldDefault(ft, prop) + switch { + case err != nil: + log.Print(err) + case nested: + dm.nested = append(dm.nested, fi) + case sf != nil: + sf.index = fi + dm.scalars = append(dm.scalars, *sf) + } + } + + return dm +} + +// fieldDefault returns the scalarField for field type ft. +// sf will be nil if the field can not have a default. +// nestedMessage will be true if this is a nested message. +// Note that sf.index is not set on return. +func fieldDefault(ft reflect.Type, prop *Properties) (sf *scalarField, nestedMessage bool, err error) { + var canHaveDefault bool + switch ft.Kind() { + case reflect.Ptr: + if ft.Elem().Kind() == reflect.Struct { + nestedMessage = true + } else { + canHaveDefault = true // proto2 scalar field + } + + case reflect.Slice: + switch ft.Elem().Kind() { + case reflect.Ptr: + nestedMessage = true // repeated message + case reflect.Uint8: + canHaveDefault = true // bytes field + } + + case reflect.Map: + if ft.Elem().Kind() == reflect.Ptr { + nestedMessage = true // map with message values + } + } + + if !canHaveDefault { + if nestedMessage { + return nil, true, nil + } + return nil, false, nil + } + + // We now know that ft is a pointer or slice. + sf = &scalarField{kind: ft.Elem().Kind()} + + // scalar fields without defaults + if !prop.HasDefault { + return sf, false, nil + } + + // a scalar field: either *T or []byte + switch ft.Elem().Kind() { + case reflect.Bool: + x, err := strconv.ParseBool(prop.Default) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default bool %q: %v", prop.Default, err) + } + sf.value = x + case reflect.Float32: + x, err := strconv.ParseFloat(prop.Default, 32) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default float32 %q: %v", prop.Default, err) + } + sf.value = float32(x) + case reflect.Float64: + x, err := strconv.ParseFloat(prop.Default, 64) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default float64 %q: %v", prop.Default, err) + } + sf.value = x + case reflect.Int32: + x, err := strconv.ParseInt(prop.Default, 10, 32) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default int32 %q: %v", prop.Default, err) + } + sf.value = int32(x) + case reflect.Int64: + x, err := strconv.ParseInt(prop.Default, 10, 64) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default int64 %q: %v", prop.Default, err) + } + sf.value = x + case reflect.String: + sf.value = prop.Default + case reflect.Uint8: + // []byte (not *uint8) + sf.value = []byte(prop.Default) + case reflect.Uint32: + x, err := strconv.ParseUint(prop.Default, 10, 32) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default uint32 %q: %v", prop.Default, err) + } + sf.value = uint32(x) + case reflect.Uint64: + x, err := strconv.ParseUint(prop.Default, 10, 64) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default uint64 %q: %v", prop.Default, err) + } + sf.value = x + default: + return nil, false, fmt.Errorf("proto: unhandled def kind %v", ft.Elem().Kind()) + } + + return sf, false, nil +} + +// Map fields may have key types of non-float scalars, strings and enums. +// The easiest way to sort them in some deterministic order is to use fmt. +// If this turns out to be inefficient we can always consider other options, +// such as doing a Schwartzian transform. + +func mapKeys(vs []reflect.Value) sort.Interface { + s := mapKeySorter{ + vs: vs, + // default Less function: textual comparison + less: func(a, b reflect.Value) bool { + return fmt.Sprint(a.Interface()) < fmt.Sprint(b.Interface()) + }, + } + + // Type specialization per https://developers.google.com/protocol-buffers/docs/proto#maps; + // numeric keys are sorted numerically. + if len(vs) == 0 { + return s + } + switch vs[0].Kind() { + case reflect.Int32, reflect.Int64: + s.less = func(a, b reflect.Value) bool { return a.Int() < b.Int() } + case reflect.Uint32, reflect.Uint64: + s.less = func(a, b reflect.Value) bool { return a.Uint() < b.Uint() } + } + + return s +} + +type mapKeySorter struct { + vs []reflect.Value + less func(a, b reflect.Value) bool +} + +func (s mapKeySorter) Len() int { return len(s.vs) } +func (s mapKeySorter) Swap(i, j int) { s.vs[i], s.vs[j] = s.vs[j], s.vs[i] } +func (s mapKeySorter) Less(i, j int) bool { + return s.less(s.vs[i], s.vs[j]) +} + +// isProto3Zero reports whether v is a zero proto3 value. +func isProto3Zero(v reflect.Value) bool { + switch v.Kind() { + case reflect.Bool: + return !v.Bool() + case reflect.Int32, reflect.Int64: + return v.Int() == 0 + case reflect.Uint32, reflect.Uint64: + return v.Uint() == 0 + case reflect.Float32, reflect.Float64: + return v.Float() == 0 + case reflect.String: + return v.String() == "" + } + return false +} + +// ProtoPackageIsVersion2 is referenced from generated protocol buffer files +// to assert that that code is compatible with this version of the proto package. +const ProtoPackageIsVersion2 = true + +// ProtoPackageIsVersion1 is referenced from generated protocol buffer files +// to assert that that code is compatible with this version of the proto package. +const ProtoPackageIsVersion1 = true diff --git a/vendor/github.com/golang/protobuf/proto/message_set.go b/vendor/github.com/golang/protobuf/proto/message_set.go new file mode 100644 index 0000000..fd982de --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/message_set.go @@ -0,0 +1,311 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2010 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +package proto + +/* + * Support for message sets. + */ + +import ( + "bytes" + "encoding/json" + "errors" + "fmt" + "reflect" + "sort" +) + +// errNoMessageTypeID occurs when a protocol buffer does not have a message type ID. +// A message type ID is required for storing a protocol buffer in a message set. +var errNoMessageTypeID = errors.New("proto does not have a message type ID") + +// The first two types (_MessageSet_Item and messageSet) +// model what the protocol compiler produces for the following protocol message: +// message MessageSet { +// repeated group Item = 1 { +// required int32 type_id = 2; +// required string message = 3; +// }; +// } +// That is the MessageSet wire format. We can't use a proto to generate these +// because that would introduce a circular dependency between it and this package. + +type _MessageSet_Item struct { + TypeId *int32 `protobuf:"varint,2,req,name=type_id"` + Message []byte `protobuf:"bytes,3,req,name=message"` +} + +type messageSet struct { + Item []*_MessageSet_Item `protobuf:"group,1,rep"` + XXX_unrecognized []byte + // TODO: caching? +} + +// Make sure messageSet is a Message. +var _ Message = (*messageSet)(nil) + +// messageTypeIder is an interface satisfied by a protocol buffer type +// that may be stored in a MessageSet. +type messageTypeIder interface { + MessageTypeId() int32 +} + +func (ms *messageSet) find(pb Message) *_MessageSet_Item { + mti, ok := pb.(messageTypeIder) + if !ok { + return nil + } + id := mti.MessageTypeId() + for _, item := range ms.Item { + if *item.TypeId == id { + return item + } + } + return nil +} + +func (ms *messageSet) Has(pb Message) bool { + if ms.find(pb) != nil { + return true + } + return false +} + +func (ms *messageSet) Unmarshal(pb Message) error { + if item := ms.find(pb); item != nil { + return Unmarshal(item.Message, pb) + } + if _, ok := pb.(messageTypeIder); !ok { + return errNoMessageTypeID + } + return nil // TODO: return error instead? +} + +func (ms *messageSet) Marshal(pb Message) error { + msg, err := Marshal(pb) + if err != nil { + return err + } + if item := ms.find(pb); item != nil { + // reuse existing item + item.Message = msg + return nil + } + + mti, ok := pb.(messageTypeIder) + if !ok { + return errNoMessageTypeID + } + + mtid := mti.MessageTypeId() + ms.Item = append(ms.Item, &_MessageSet_Item{ + TypeId: &mtid, + Message: msg, + }) + return nil +} + +func (ms *messageSet) Reset() { *ms = messageSet{} } +func (ms *messageSet) String() string { return CompactTextString(ms) } +func (*messageSet) ProtoMessage() {} + +// Support for the message_set_wire_format message option. + +func skipVarint(buf []byte) []byte { + i := 0 + for ; buf[i]&0x80 != 0; i++ { + } + return buf[i+1:] +} + +// MarshalMessageSet encodes the extension map represented by m in the message set wire format. +// It is called by generated Marshal methods on protocol buffer messages with the message_set_wire_format option. +func MarshalMessageSet(exts interface{}) ([]byte, error) { + var m map[int32]Extension + switch exts := exts.(type) { + case *XXX_InternalExtensions: + if err := encodeExtensions(exts); err != nil { + return nil, err + } + m, _ = exts.extensionsRead() + case map[int32]Extension: + if err := encodeExtensionsMap(exts); err != nil { + return nil, err + } + m = exts + default: + return nil, errors.New("proto: not an extension map") + } + + // Sort extension IDs to provide a deterministic encoding. + // See also enc_map in encode.go. + ids := make([]int, 0, len(m)) + for id := range m { + ids = append(ids, int(id)) + } + sort.Ints(ids) + + ms := &messageSet{Item: make([]*_MessageSet_Item, 0, len(m))} + for _, id := range ids { + e := m[int32(id)] + // Remove the wire type and field number varint, as well as the length varint. + msg := skipVarint(skipVarint(e.enc)) + + ms.Item = append(ms.Item, &_MessageSet_Item{ + TypeId: Int32(int32(id)), + Message: msg, + }) + } + return Marshal(ms) +} + +// UnmarshalMessageSet decodes the extension map encoded in buf in the message set wire format. +// It is called by generated Unmarshal methods on protocol buffer messages with the message_set_wire_format option. +func UnmarshalMessageSet(buf []byte, exts interface{}) error { + var m map[int32]Extension + switch exts := exts.(type) { + case *XXX_InternalExtensions: + m = exts.extensionsWrite() + case map[int32]Extension: + m = exts + default: + return errors.New("proto: not an extension map") + } + + ms := new(messageSet) + if err := Unmarshal(buf, ms); err != nil { + return err + } + for _, item := range ms.Item { + id := *item.TypeId + msg := item.Message + + // Restore wire type and field number varint, plus length varint. + // Be careful to preserve duplicate items. + b := EncodeVarint(uint64(id)<<3 | WireBytes) + if ext, ok := m[id]; ok { + // Existing data; rip off the tag and length varint + // so we join the new data correctly. + // We can assume that ext.enc is set because we are unmarshaling. + o := ext.enc[len(b):] // skip wire type and field number + _, n := DecodeVarint(o) // calculate length of length varint + o = o[n:] // skip length varint + msg = append(o, msg...) // join old data and new data + } + b = append(b, EncodeVarint(uint64(len(msg)))...) + b = append(b, msg...) + + m[id] = Extension{enc: b} + } + return nil +} + +// MarshalMessageSetJSON encodes the extension map represented by m in JSON format. +// It is called by generated MarshalJSON methods on protocol buffer messages with the message_set_wire_format option. +func MarshalMessageSetJSON(exts interface{}) ([]byte, error) { + var m map[int32]Extension + switch exts := exts.(type) { + case *XXX_InternalExtensions: + m, _ = exts.extensionsRead() + case map[int32]Extension: + m = exts + default: + return nil, errors.New("proto: not an extension map") + } + var b bytes.Buffer + b.WriteByte('{') + + // Process the map in key order for deterministic output. + ids := make([]int32, 0, len(m)) + for id := range m { + ids = append(ids, id) + } + sort.Sort(int32Slice(ids)) // int32Slice defined in text.go + + for i, id := range ids { + ext := m[id] + if i > 0 { + b.WriteByte(',') + } + + msd, ok := messageSetMap[id] + if !ok { + // Unknown type; we can't render it, so skip it. + continue + } + fmt.Fprintf(&b, `"[%s]":`, msd.name) + + x := ext.value + if x == nil { + x = reflect.New(msd.t.Elem()).Interface() + if err := Unmarshal(ext.enc, x.(Message)); err != nil { + return nil, err + } + } + d, err := json.Marshal(x) + if err != nil { + return nil, err + } + b.Write(d) + } + b.WriteByte('}') + return b.Bytes(), nil +} + +// UnmarshalMessageSetJSON decodes the extension map encoded in buf in JSON format. +// It is called by generated UnmarshalJSON methods on protocol buffer messages with the message_set_wire_format option. +func UnmarshalMessageSetJSON(buf []byte, exts interface{}) error { + // Common-case fast path. + if len(buf) == 0 || bytes.Equal(buf, []byte("{}")) { + return nil + } + + // This is fairly tricky, and it's not clear that it is needed. + return errors.New("TODO: UnmarshalMessageSetJSON not yet implemented") +} + +// A global registry of types that can be used in a MessageSet. + +var messageSetMap = make(map[int32]messageSetDesc) + +type messageSetDesc struct { + t reflect.Type // pointer to struct + name string +} + +// RegisterMessageSetType is called from the generated code. +func RegisterMessageSetType(m Message, fieldNum int32, name string) { + messageSetMap[fieldNum] = messageSetDesc{ + t: reflect.TypeOf(m), + name: name, + } +} diff --git a/vendor/github.com/golang/protobuf/proto/pointer_reflect.go b/vendor/github.com/golang/protobuf/proto/pointer_reflect.go new file mode 100644 index 0000000..fb512e2 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/pointer_reflect.go @@ -0,0 +1,484 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2012 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// +build appengine js + +// This file contains an implementation of proto field accesses using package reflect. +// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can +// be used on App Engine. + +package proto + +import ( + "math" + "reflect" +) + +// A structPointer is a pointer to a struct. +type structPointer struct { + v reflect.Value +} + +// toStructPointer returns a structPointer equivalent to the given reflect value. +// The reflect value must itself be a pointer to a struct. +func toStructPointer(v reflect.Value) structPointer { + return structPointer{v} +} + +// IsNil reports whether p is nil. +func structPointer_IsNil(p structPointer) bool { + return p.v.IsNil() +} + +// Interface returns the struct pointer as an interface value. +func structPointer_Interface(p structPointer, _ reflect.Type) interface{} { + return p.v.Interface() +} + +// A field identifies a field in a struct, accessible from a structPointer. +// In this implementation, a field is identified by the sequence of field indices +// passed to reflect's FieldByIndex. +type field []int + +// toField returns a field equivalent to the given reflect field. +func toField(f *reflect.StructField) field { + return f.Index +} + +// invalidField is an invalid field identifier. +var invalidField = field(nil) + +// IsValid reports whether the field identifier is valid. +func (f field) IsValid() bool { return f != nil } + +// field returns the given field in the struct as a reflect value. +func structPointer_field(p structPointer, f field) reflect.Value { + // Special case: an extension map entry with a value of type T + // passes a *T to the struct-handling code with a zero field, + // expecting that it will be treated as equivalent to *struct{ X T }, + // which has the same memory layout. We have to handle that case + // specially, because reflect will panic if we call FieldByIndex on a + // non-struct. + if f == nil { + return p.v.Elem() + } + + return p.v.Elem().FieldByIndex(f) +} + +// ifield returns the given field in the struct as an interface value. +func structPointer_ifield(p structPointer, f field) interface{} { + return structPointer_field(p, f).Addr().Interface() +} + +// Bytes returns the address of a []byte field in the struct. +func structPointer_Bytes(p structPointer, f field) *[]byte { + return structPointer_ifield(p, f).(*[]byte) +} + +// BytesSlice returns the address of a [][]byte field in the struct. +func structPointer_BytesSlice(p structPointer, f field) *[][]byte { + return structPointer_ifield(p, f).(*[][]byte) +} + +// Bool returns the address of a *bool field in the struct. +func structPointer_Bool(p structPointer, f field) **bool { + return structPointer_ifield(p, f).(**bool) +} + +// BoolVal returns the address of a bool field in the struct. +func structPointer_BoolVal(p structPointer, f field) *bool { + return structPointer_ifield(p, f).(*bool) +} + +// BoolSlice returns the address of a []bool field in the struct. +func structPointer_BoolSlice(p structPointer, f field) *[]bool { + return structPointer_ifield(p, f).(*[]bool) +} + +// String returns the address of a *string field in the struct. +func structPointer_String(p structPointer, f field) **string { + return structPointer_ifield(p, f).(**string) +} + +// StringVal returns the address of a string field in the struct. +func structPointer_StringVal(p structPointer, f field) *string { + return structPointer_ifield(p, f).(*string) +} + +// StringSlice returns the address of a []string field in the struct. +func structPointer_StringSlice(p structPointer, f field) *[]string { + return structPointer_ifield(p, f).(*[]string) +} + +// Extensions returns the address of an extension map field in the struct. +func structPointer_Extensions(p structPointer, f field) *XXX_InternalExtensions { + return structPointer_ifield(p, f).(*XXX_InternalExtensions) +} + +// ExtMap returns the address of an extension map field in the struct. +func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension { + return structPointer_ifield(p, f).(*map[int32]Extension) +} + +// NewAt returns the reflect.Value for a pointer to a field in the struct. +func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value { + return structPointer_field(p, f).Addr() +} + +// SetStructPointer writes a *struct field in the struct. +func structPointer_SetStructPointer(p structPointer, f field, q structPointer) { + structPointer_field(p, f).Set(q.v) +} + +// GetStructPointer reads a *struct field in the struct. +func structPointer_GetStructPointer(p structPointer, f field) structPointer { + return structPointer{structPointer_field(p, f)} +} + +// StructPointerSlice the address of a []*struct field in the struct. +func structPointer_StructPointerSlice(p structPointer, f field) structPointerSlice { + return structPointerSlice{structPointer_field(p, f)} +} + +// A structPointerSlice represents the address of a slice of pointers to structs +// (themselves messages or groups). That is, v.Type() is *[]*struct{...}. +type structPointerSlice struct { + v reflect.Value +} + +func (p structPointerSlice) Len() int { return p.v.Len() } +func (p structPointerSlice) Index(i int) structPointer { return structPointer{p.v.Index(i)} } +func (p structPointerSlice) Append(q structPointer) { + p.v.Set(reflect.Append(p.v, q.v)) +} + +var ( + int32Type = reflect.TypeOf(int32(0)) + uint32Type = reflect.TypeOf(uint32(0)) + float32Type = reflect.TypeOf(float32(0)) + int64Type = reflect.TypeOf(int64(0)) + uint64Type = reflect.TypeOf(uint64(0)) + float64Type = reflect.TypeOf(float64(0)) +) + +// A word32 represents a field of type *int32, *uint32, *float32, or *enum. +// That is, v.Type() is *int32, *uint32, *float32, or *enum and v is assignable. +type word32 struct { + v reflect.Value +} + +// IsNil reports whether p is nil. +func word32_IsNil(p word32) bool { + return p.v.IsNil() +} + +// Set sets p to point at a newly allocated word with bits set to x. +func word32_Set(p word32, o *Buffer, x uint32) { + t := p.v.Type().Elem() + switch t { + case int32Type: + if len(o.int32s) == 0 { + o.int32s = make([]int32, uint32PoolSize) + } + o.int32s[0] = int32(x) + p.v.Set(reflect.ValueOf(&o.int32s[0])) + o.int32s = o.int32s[1:] + return + case uint32Type: + if len(o.uint32s) == 0 { + o.uint32s = make([]uint32, uint32PoolSize) + } + o.uint32s[0] = x + p.v.Set(reflect.ValueOf(&o.uint32s[0])) + o.uint32s = o.uint32s[1:] + return + case float32Type: + if len(o.float32s) == 0 { + o.float32s = make([]float32, uint32PoolSize) + } + o.float32s[0] = math.Float32frombits(x) + p.v.Set(reflect.ValueOf(&o.float32s[0])) + o.float32s = o.float32s[1:] + return + } + + // must be enum + p.v.Set(reflect.New(t)) + p.v.Elem().SetInt(int64(int32(x))) +} + +// Get gets the bits pointed at by p, as a uint32. +func word32_Get(p word32) uint32 { + elem := p.v.Elem() + switch elem.Kind() { + case reflect.Int32: + return uint32(elem.Int()) + case reflect.Uint32: + return uint32(elem.Uint()) + case reflect.Float32: + return math.Float32bits(float32(elem.Float())) + } + panic("unreachable") +} + +// Word32 returns a reference to a *int32, *uint32, *float32, or *enum field in the struct. +func structPointer_Word32(p structPointer, f field) word32 { + return word32{structPointer_field(p, f)} +} + +// A word32Val represents a field of type int32, uint32, float32, or enum. +// That is, v.Type() is int32, uint32, float32, or enum and v is assignable. +type word32Val struct { + v reflect.Value +} + +// Set sets *p to x. +func word32Val_Set(p word32Val, x uint32) { + switch p.v.Type() { + case int32Type: + p.v.SetInt(int64(x)) + return + case uint32Type: + p.v.SetUint(uint64(x)) + return + case float32Type: + p.v.SetFloat(float64(math.Float32frombits(x))) + return + } + + // must be enum + p.v.SetInt(int64(int32(x))) +} + +// Get gets the bits pointed at by p, as a uint32. +func word32Val_Get(p word32Val) uint32 { + elem := p.v + switch elem.Kind() { + case reflect.Int32: + return uint32(elem.Int()) + case reflect.Uint32: + return uint32(elem.Uint()) + case reflect.Float32: + return math.Float32bits(float32(elem.Float())) + } + panic("unreachable") +} + +// Word32Val returns a reference to a int32, uint32, float32, or enum field in the struct. +func structPointer_Word32Val(p structPointer, f field) word32Val { + return word32Val{structPointer_field(p, f)} +} + +// A word32Slice is a slice of 32-bit values. +// That is, v.Type() is []int32, []uint32, []float32, or []enum. +type word32Slice struct { + v reflect.Value +} + +func (p word32Slice) Append(x uint32) { + n, m := p.v.Len(), p.v.Cap() + if n < m { + p.v.SetLen(n + 1) + } else { + t := p.v.Type().Elem() + p.v.Set(reflect.Append(p.v, reflect.Zero(t))) + } + elem := p.v.Index(n) + switch elem.Kind() { + case reflect.Int32: + elem.SetInt(int64(int32(x))) + case reflect.Uint32: + elem.SetUint(uint64(x)) + case reflect.Float32: + elem.SetFloat(float64(math.Float32frombits(x))) + } +} + +func (p word32Slice) Len() int { + return p.v.Len() +} + +func (p word32Slice) Index(i int) uint32 { + elem := p.v.Index(i) + switch elem.Kind() { + case reflect.Int32: + return uint32(elem.Int()) + case reflect.Uint32: + return uint32(elem.Uint()) + case reflect.Float32: + return math.Float32bits(float32(elem.Float())) + } + panic("unreachable") +} + +// Word32Slice returns a reference to a []int32, []uint32, []float32, or []enum field in the struct. +func structPointer_Word32Slice(p structPointer, f field) word32Slice { + return word32Slice{structPointer_field(p, f)} +} + +// word64 is like word32 but for 64-bit values. +type word64 struct { + v reflect.Value +} + +func word64_Set(p word64, o *Buffer, x uint64) { + t := p.v.Type().Elem() + switch t { + case int64Type: + if len(o.int64s) == 0 { + o.int64s = make([]int64, uint64PoolSize) + } + o.int64s[0] = int64(x) + p.v.Set(reflect.ValueOf(&o.int64s[0])) + o.int64s = o.int64s[1:] + return + case uint64Type: + if len(o.uint64s) == 0 { + o.uint64s = make([]uint64, uint64PoolSize) + } + o.uint64s[0] = x + p.v.Set(reflect.ValueOf(&o.uint64s[0])) + o.uint64s = o.uint64s[1:] + return + case float64Type: + if len(o.float64s) == 0 { + o.float64s = make([]float64, uint64PoolSize) + } + o.float64s[0] = math.Float64frombits(x) + p.v.Set(reflect.ValueOf(&o.float64s[0])) + o.float64s = o.float64s[1:] + return + } + panic("unreachable") +} + +func word64_IsNil(p word64) bool { + return p.v.IsNil() +} + +func word64_Get(p word64) uint64 { + elem := p.v.Elem() + switch elem.Kind() { + case reflect.Int64: + return uint64(elem.Int()) + case reflect.Uint64: + return elem.Uint() + case reflect.Float64: + return math.Float64bits(elem.Float()) + } + panic("unreachable") +} + +func structPointer_Word64(p structPointer, f field) word64 { + return word64{structPointer_field(p, f)} +} + +// word64Val is like word32Val but for 64-bit values. +type word64Val struct { + v reflect.Value +} + +func word64Val_Set(p word64Val, o *Buffer, x uint64) { + switch p.v.Type() { + case int64Type: + p.v.SetInt(int64(x)) + return + case uint64Type: + p.v.SetUint(x) + return + case float64Type: + p.v.SetFloat(math.Float64frombits(x)) + return + } + panic("unreachable") +} + +func word64Val_Get(p word64Val) uint64 { + elem := p.v + switch elem.Kind() { + case reflect.Int64: + return uint64(elem.Int()) + case reflect.Uint64: + return elem.Uint() + case reflect.Float64: + return math.Float64bits(elem.Float()) + } + panic("unreachable") +} + +func structPointer_Word64Val(p structPointer, f field) word64Val { + return word64Val{structPointer_field(p, f)} +} + +type word64Slice struct { + v reflect.Value +} + +func (p word64Slice) Append(x uint64) { + n, m := p.v.Len(), p.v.Cap() + if n < m { + p.v.SetLen(n + 1) + } else { + t := p.v.Type().Elem() + p.v.Set(reflect.Append(p.v, reflect.Zero(t))) + } + elem := p.v.Index(n) + switch elem.Kind() { + case reflect.Int64: + elem.SetInt(int64(int64(x))) + case reflect.Uint64: + elem.SetUint(uint64(x)) + case reflect.Float64: + elem.SetFloat(float64(math.Float64frombits(x))) + } +} + +func (p word64Slice) Len() int { + return p.v.Len() +} + +func (p word64Slice) Index(i int) uint64 { + elem := p.v.Index(i) + switch elem.Kind() { + case reflect.Int64: + return uint64(elem.Int()) + case reflect.Uint64: + return uint64(elem.Uint()) + case reflect.Float64: + return math.Float64bits(float64(elem.Float())) + } + panic("unreachable") +} + +func structPointer_Word64Slice(p structPointer, f field) word64Slice { + return word64Slice{structPointer_field(p, f)} +} diff --git a/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go b/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go new file mode 100644 index 0000000..6b5567d --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/pointer_unsafe.go @@ -0,0 +1,270 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2012 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// +build !appengine,!js + +// This file contains the implementation of the proto field accesses using package unsafe. + +package proto + +import ( + "reflect" + "unsafe" +) + +// NOTE: These type_Foo functions would more idiomatically be methods, +// but Go does not allow methods on pointer types, and we must preserve +// some pointer type for the garbage collector. We use these +// funcs with clunky names as our poor approximation to methods. +// +// An alternative would be +// type structPointer struct { p unsafe.Pointer } +// but that does not registerize as well. + +// A structPointer is a pointer to a struct. +type structPointer unsafe.Pointer + +// toStructPointer returns a structPointer equivalent to the given reflect value. +func toStructPointer(v reflect.Value) structPointer { + return structPointer(unsafe.Pointer(v.Pointer())) +} + +// IsNil reports whether p is nil. +func structPointer_IsNil(p structPointer) bool { + return p == nil +} + +// Interface returns the struct pointer, assumed to have element type t, +// as an interface value. +func structPointer_Interface(p structPointer, t reflect.Type) interface{} { + return reflect.NewAt(t, unsafe.Pointer(p)).Interface() +} + +// A field identifies a field in a struct, accessible from a structPointer. +// In this implementation, a field is identified by its byte offset from the start of the struct. +type field uintptr + +// toField returns a field equivalent to the given reflect field. +func toField(f *reflect.StructField) field { + return field(f.Offset) +} + +// invalidField is an invalid field identifier. +const invalidField = ^field(0) + +// IsValid reports whether the field identifier is valid. +func (f field) IsValid() bool { + return f != ^field(0) +} + +// Bytes returns the address of a []byte field in the struct. +func structPointer_Bytes(p structPointer, f field) *[]byte { + return (*[]byte)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// BytesSlice returns the address of a [][]byte field in the struct. +func structPointer_BytesSlice(p structPointer, f field) *[][]byte { + return (*[][]byte)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// Bool returns the address of a *bool field in the struct. +func structPointer_Bool(p structPointer, f field) **bool { + return (**bool)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// BoolVal returns the address of a bool field in the struct. +func structPointer_BoolVal(p structPointer, f field) *bool { + return (*bool)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// BoolSlice returns the address of a []bool field in the struct. +func structPointer_BoolSlice(p structPointer, f field) *[]bool { + return (*[]bool)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// String returns the address of a *string field in the struct. +func structPointer_String(p structPointer, f field) **string { + return (**string)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// StringVal returns the address of a string field in the struct. +func structPointer_StringVal(p structPointer, f field) *string { + return (*string)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// StringSlice returns the address of a []string field in the struct. +func structPointer_StringSlice(p structPointer, f field) *[]string { + return (*[]string)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// ExtMap returns the address of an extension map field in the struct. +func structPointer_Extensions(p structPointer, f field) *XXX_InternalExtensions { + return (*XXX_InternalExtensions)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension { + return (*map[int32]Extension)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// NewAt returns the reflect.Value for a pointer to a field in the struct. +func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value { + return reflect.NewAt(typ, unsafe.Pointer(uintptr(p)+uintptr(f))) +} + +// SetStructPointer writes a *struct field in the struct. +func structPointer_SetStructPointer(p structPointer, f field, q structPointer) { + *(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f))) = q +} + +// GetStructPointer reads a *struct field in the struct. +func structPointer_GetStructPointer(p structPointer, f field) structPointer { + return *(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// StructPointerSlice the address of a []*struct field in the struct. +func structPointer_StructPointerSlice(p structPointer, f field) *structPointerSlice { + return (*structPointerSlice)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// A structPointerSlice represents a slice of pointers to structs (themselves submessages or groups). +type structPointerSlice []structPointer + +func (v *structPointerSlice) Len() int { return len(*v) } +func (v *structPointerSlice) Index(i int) structPointer { return (*v)[i] } +func (v *structPointerSlice) Append(p structPointer) { *v = append(*v, p) } + +// A word32 is the address of a "pointer to 32-bit value" field. +type word32 **uint32 + +// IsNil reports whether *v is nil. +func word32_IsNil(p word32) bool { + return *p == nil +} + +// Set sets *v to point at a newly allocated word set to x. +func word32_Set(p word32, o *Buffer, x uint32) { + if len(o.uint32s) == 0 { + o.uint32s = make([]uint32, uint32PoolSize) + } + o.uint32s[0] = x + *p = &o.uint32s[0] + o.uint32s = o.uint32s[1:] +} + +// Get gets the value pointed at by *v. +func word32_Get(p word32) uint32 { + return **p +} + +// Word32 returns the address of a *int32, *uint32, *float32, or *enum field in the struct. +func structPointer_Word32(p structPointer, f field) word32 { + return word32((**uint32)(unsafe.Pointer(uintptr(p) + uintptr(f)))) +} + +// A word32Val is the address of a 32-bit value field. +type word32Val *uint32 + +// Set sets *p to x. +func word32Val_Set(p word32Val, x uint32) { + *p = x +} + +// Get gets the value pointed at by p. +func word32Val_Get(p word32Val) uint32 { + return *p +} + +// Word32Val returns the address of a *int32, *uint32, *float32, or *enum field in the struct. +func structPointer_Word32Val(p structPointer, f field) word32Val { + return word32Val((*uint32)(unsafe.Pointer(uintptr(p) + uintptr(f)))) +} + +// A word32Slice is a slice of 32-bit values. +type word32Slice []uint32 + +func (v *word32Slice) Append(x uint32) { *v = append(*v, x) } +func (v *word32Slice) Len() int { return len(*v) } +func (v *word32Slice) Index(i int) uint32 { return (*v)[i] } + +// Word32Slice returns the address of a []int32, []uint32, []float32, or []enum field in the struct. +func structPointer_Word32Slice(p structPointer, f field) *word32Slice { + return (*word32Slice)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} + +// word64 is like word32 but for 64-bit values. +type word64 **uint64 + +func word64_Set(p word64, o *Buffer, x uint64) { + if len(o.uint64s) == 0 { + o.uint64s = make([]uint64, uint64PoolSize) + } + o.uint64s[0] = x + *p = &o.uint64s[0] + o.uint64s = o.uint64s[1:] +} + +func word64_IsNil(p word64) bool { + return *p == nil +} + +func word64_Get(p word64) uint64 { + return **p +} + +func structPointer_Word64(p structPointer, f field) word64 { + return word64((**uint64)(unsafe.Pointer(uintptr(p) + uintptr(f)))) +} + +// word64Val is like word32Val but for 64-bit values. +type word64Val *uint64 + +func word64Val_Set(p word64Val, o *Buffer, x uint64) { + *p = x +} + +func word64Val_Get(p word64Val) uint64 { + return *p +} + +func structPointer_Word64Val(p structPointer, f field) word64Val { + return word64Val((*uint64)(unsafe.Pointer(uintptr(p) + uintptr(f)))) +} + +// word64Slice is like word32Slice but for 64-bit values. +type word64Slice []uint64 + +func (v *word64Slice) Append(x uint64) { *v = append(*v, x) } +func (v *word64Slice) Len() int { return len(*v) } +func (v *word64Slice) Index(i int) uint64 { return (*v)[i] } + +func structPointer_Word64Slice(p structPointer, f field) *word64Slice { + return (*word64Slice)(unsafe.Pointer(uintptr(p) + uintptr(f))) +} diff --git a/vendor/github.com/golang/protobuf/proto/properties.go b/vendor/github.com/golang/protobuf/proto/properties.go new file mode 100644 index 0000000..69ddda8 --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/properties.go @@ -0,0 +1,864 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2010 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +package proto + +/* + * Routines for encoding data into the wire format for protocol buffers. + */ + +import ( + "fmt" + "log" + "os" + "reflect" + "sort" + "strconv" + "strings" + "sync" +) + +const debug bool = false + +// Constants that identify the encoding of a value on the wire. +const ( + WireVarint = 0 + WireFixed64 = 1 + WireBytes = 2 + WireStartGroup = 3 + WireEndGroup = 4 + WireFixed32 = 5 +) + +const startSize = 10 // initial slice/string sizes + +// Encoders are defined in encode.go +// An encoder outputs the full representation of a field, including its +// tag and encoder type. +type encoder func(p *Buffer, prop *Properties, base structPointer) error + +// A valueEncoder encodes a single integer in a particular encoding. +type valueEncoder func(o *Buffer, x uint64) error + +// Sizers are defined in encode.go +// A sizer returns the encoded size of a field, including its tag and encoder +// type. +type sizer func(prop *Properties, base structPointer) int + +// A valueSizer returns the encoded size of a single integer in a particular +// encoding. +type valueSizer func(x uint64) int + +// Decoders are defined in decode.go +// A decoder creates a value from its wire representation. +// Unrecognized subelements are saved in unrec. +type decoder func(p *Buffer, prop *Properties, base structPointer) error + +// A valueDecoder decodes a single integer in a particular encoding. +type valueDecoder func(o *Buffer) (x uint64, err error) + +// A oneofMarshaler does the marshaling for all oneof fields in a message. +type oneofMarshaler func(Message, *Buffer) error + +// A oneofUnmarshaler does the unmarshaling for a oneof field in a message. +type oneofUnmarshaler func(Message, int, int, *Buffer) (bool, error) + +// A oneofSizer does the sizing for all oneof fields in a message. +type oneofSizer func(Message) int + +// tagMap is an optimization over map[int]int for typical protocol buffer +// use-cases. Encoded protocol buffers are often in tag order with small tag +// numbers. +type tagMap struct { + fastTags []int + slowTags map[int]int +} + +// tagMapFastLimit is the upper bound on the tag number that will be stored in +// the tagMap slice rather than its map. +const tagMapFastLimit = 1024 + +func (p *tagMap) get(t int) (int, bool) { + if t > 0 && t < tagMapFastLimit { + if t >= len(p.fastTags) { + return 0, false + } + fi := p.fastTags[t] + return fi, fi >= 0 + } + fi, ok := p.slowTags[t] + return fi, ok +} + +func (p *tagMap) put(t int, fi int) { + if t > 0 && t < tagMapFastLimit { + for len(p.fastTags) < t+1 { + p.fastTags = append(p.fastTags, -1) + } + p.fastTags[t] = fi + return + } + if p.slowTags == nil { + p.slowTags = make(map[int]int) + } + p.slowTags[t] = fi +} + +// StructProperties represents properties for all the fields of a struct. +// decoderTags and decoderOrigNames should only be used by the decoder. +type StructProperties struct { + Prop []*Properties // properties for each field + reqCount int // required count + decoderTags tagMap // map from proto tag to struct field number + decoderOrigNames map[string]int // map from original name to struct field number + order []int // list of struct field numbers in tag order + unrecField field // field id of the XXX_unrecognized []byte field + extendable bool // is this an extendable proto + + oneofMarshaler oneofMarshaler + oneofUnmarshaler oneofUnmarshaler + oneofSizer oneofSizer + stype reflect.Type + + // OneofTypes contains information about the oneof fields in this message. + // It is keyed by the original name of a field. + OneofTypes map[string]*OneofProperties +} + +// OneofProperties represents information about a specific field in a oneof. +type OneofProperties struct { + Type reflect.Type // pointer to generated struct type for this oneof field + Field int // struct field number of the containing oneof in the message + Prop *Properties +} + +// Implement the sorting interface so we can sort the fields in tag order, as recommended by the spec. +// See encode.go, (*Buffer).enc_struct. + +func (sp *StructProperties) Len() int { return len(sp.order) } +func (sp *StructProperties) Less(i, j int) bool { + return sp.Prop[sp.order[i]].Tag < sp.Prop[sp.order[j]].Tag +} +func (sp *StructProperties) Swap(i, j int) { sp.order[i], sp.order[j] = sp.order[j], sp.order[i] } + +// Properties represents the protocol-specific behavior of a single struct field. +type Properties struct { + Name string // name of the field, for error messages + OrigName string // original name before protocol compiler (always set) + JSONName string // name to use for JSON; determined by protoc + Wire string + WireType int + Tag int + Required bool + Optional bool + Repeated bool + Packed bool // relevant for repeated primitives only + Enum string // set for enum types only + proto3 bool // whether this is known to be a proto3 field; set for []byte only + oneof bool // whether this is a oneof field + + Default string // default value + HasDefault bool // whether an explicit default was provided + def_uint64 uint64 + + enc encoder + valEnc valueEncoder // set for bool and numeric types only + field field + tagcode []byte // encoding of EncodeVarint((Tag<<3)|WireType) + tagbuf [8]byte + stype reflect.Type // set for struct types only + sprop *StructProperties // set for struct types only + isMarshaler bool + isUnmarshaler bool + + mtype reflect.Type // set for map types only + mkeyprop *Properties // set for map types only + mvalprop *Properties // set for map types only + + size sizer + valSize valueSizer // set for bool and numeric types only + + dec decoder + valDec valueDecoder // set for bool and numeric types only + + // If this is a packable field, this will be the decoder for the packed version of the field. + packedDec decoder +} + +// String formats the properties in the protobuf struct field tag style. +func (p *Properties) String() string { + s := p.Wire + s = "," + s += strconv.Itoa(p.Tag) + if p.Required { + s += ",req" + } + if p.Optional { + s += ",opt" + } + if p.Repeated { + s += ",rep" + } + if p.Packed { + s += ",packed" + } + s += ",name=" + p.OrigName + if p.JSONName != p.OrigName { + s += ",json=" + p.JSONName + } + if p.proto3 { + s += ",proto3" + } + if p.oneof { + s += ",oneof" + } + if len(p.Enum) > 0 { + s += ",enum=" + p.Enum + } + if p.HasDefault { + s += ",def=" + p.Default + } + return s +} + +// Parse populates p by parsing a string in the protobuf struct field tag style. +func (p *Properties) Parse(s string) { + // "bytes,49,opt,name=foo,def=hello!" + fields := strings.Split(s, ",") // breaks def=, but handled below. + if len(fields) < 2 { + fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s) + return + } + + p.Wire = fields[0] + switch p.Wire { + case "varint": + p.WireType = WireVarint + p.valEnc = (*Buffer).EncodeVarint + p.valDec = (*Buffer).DecodeVarint + p.valSize = sizeVarint + case "fixed32": + p.WireType = WireFixed32 + p.valEnc = (*Buffer).EncodeFixed32 + p.valDec = (*Buffer).DecodeFixed32 + p.valSize = sizeFixed32 + case "fixed64": + p.WireType = WireFixed64 + p.valEnc = (*Buffer).EncodeFixed64 + p.valDec = (*Buffer).DecodeFixed64 + p.valSize = sizeFixed64 + case "zigzag32": + p.WireType = WireVarint + p.valEnc = (*Buffer).EncodeZigzag32 + p.valDec = (*Buffer).DecodeZigzag32 + p.valSize = sizeZigzag32 + case "zigzag64": + p.WireType = WireVarint + p.valEnc = (*Buffer).EncodeZigzag64 + p.valDec = (*Buffer).DecodeZigzag64 + p.valSize = sizeZigzag64 + case "bytes", "group": + p.WireType = WireBytes + // no numeric converter for non-numeric types + default: + fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s) + return + } + + var err error + p.Tag, err = strconv.Atoi(fields[1]) + if err != nil { + return + } + + for i := 2; i < len(fields); i++ { + f := fields[i] + switch { + case f == "req": + p.Required = true + case f == "opt": + p.Optional = true + case f == "rep": + p.Repeated = true + case f == "packed": + p.Packed = true + case strings.HasPrefix(f, "name="): + p.OrigName = f[5:] + case strings.HasPrefix(f, "json="): + p.JSONName = f[5:] + case strings.HasPrefix(f, "enum="): + p.Enum = f[5:] + case f == "proto3": + p.proto3 = true + case f == "oneof": + p.oneof = true + case strings.HasPrefix(f, "def="): + p.HasDefault = true + p.Default = f[4:] // rest of string + if i+1 < len(fields) { + // Commas aren't escaped, and def is always last. + p.Default += "," + strings.Join(fields[i+1:], ",") + break + } + } + } +} + +func logNoSliceEnc(t1, t2 reflect.Type) { + fmt.Fprintf(os.Stderr, "proto: no slice oenc for %T = []%T\n", t1, t2) +} + +var protoMessageType = reflect.TypeOf((*Message)(nil)).Elem() + +// Initialize the fields for encoding and decoding. +func (p *Properties) setEncAndDec(typ reflect.Type, f *reflect.StructField, lockGetProp bool) { + p.enc = nil + p.dec = nil + p.size = nil + + switch t1 := typ; t1.Kind() { + default: + fmt.Fprintf(os.Stderr, "proto: no coders for %v\n", t1) + + // proto3 scalar types + + case reflect.Bool: + p.enc = (*Buffer).enc_proto3_bool + p.dec = (*Buffer).dec_proto3_bool + p.size = size_proto3_bool + case reflect.Int32: + p.enc = (*Buffer).enc_proto3_int32 + p.dec = (*Buffer).dec_proto3_int32 + p.size = size_proto3_int32 + case reflect.Uint32: + p.enc = (*Buffer).enc_proto3_uint32 + p.dec = (*Buffer).dec_proto3_int32 // can reuse + p.size = size_proto3_uint32 + case reflect.Int64, reflect.Uint64: + p.enc = (*Buffer).enc_proto3_int64 + p.dec = (*Buffer).dec_proto3_int64 + p.size = size_proto3_int64 + case reflect.Float32: + p.enc = (*Buffer).enc_proto3_uint32 // can just treat them as bits + p.dec = (*Buffer).dec_proto3_int32 + p.size = size_proto3_uint32 + case reflect.Float64: + p.enc = (*Buffer).enc_proto3_int64 // can just treat them as bits + p.dec = (*Buffer).dec_proto3_int64 + p.size = size_proto3_int64 + case reflect.String: + p.enc = (*Buffer).enc_proto3_string + p.dec = (*Buffer).dec_proto3_string + p.size = size_proto3_string + + case reflect.Ptr: + switch t2 := t1.Elem(); t2.Kind() { + default: + fmt.Fprintf(os.Stderr, "proto: no encoder function for %v -> %v\n", t1, t2) + break + case reflect.Bool: + p.enc = (*Buffer).enc_bool + p.dec = (*Buffer).dec_bool + p.size = size_bool + case reflect.Int32: + p.enc = (*Buffer).enc_int32 + p.dec = (*Buffer).dec_int32 + p.size = size_int32 + case reflect.Uint32: + p.enc = (*Buffer).enc_uint32 + p.dec = (*Buffer).dec_int32 // can reuse + p.size = size_uint32 + case reflect.Int64, reflect.Uint64: + p.enc = (*Buffer).enc_int64 + p.dec = (*Buffer).dec_int64 + p.size = size_int64 + case reflect.Float32: + p.enc = (*Buffer).enc_uint32 // can just treat them as bits + p.dec = (*Buffer).dec_int32 + p.size = size_uint32 + case reflect.Float64: + p.enc = (*Buffer).enc_int64 // can just treat them as bits + p.dec = (*Buffer).dec_int64 + p.size = size_int64 + case reflect.String: + p.enc = (*Buffer).enc_string + p.dec = (*Buffer).dec_string + p.size = size_string + case reflect.Struct: + p.stype = t1.Elem() + p.isMarshaler = isMarshaler(t1) + p.isUnmarshaler = isUnmarshaler(t1) + if p.Wire == "bytes" { + p.enc = (*Buffer).enc_struct_message + p.dec = (*Buffer).dec_struct_message + p.size = size_struct_message + } else { + p.enc = (*Buffer).enc_struct_group + p.dec = (*Buffer).dec_struct_group + p.size = size_struct_group + } + } + + case reflect.Slice: + switch t2 := t1.Elem(); t2.Kind() { + default: + logNoSliceEnc(t1, t2) + break + case reflect.Bool: + if p.Packed { + p.enc = (*Buffer).enc_slice_packed_bool + p.size = size_slice_packed_bool + } else { + p.enc = (*Buffer).enc_slice_bool + p.size = size_slice_bool + } + p.dec = (*Buffer).dec_slice_bool + p.packedDec = (*Buffer).dec_slice_packed_bool + case reflect.Int32: + if p.Packed { + p.enc = (*Buffer).enc_slice_packed_int32 + p.size = size_slice_packed_int32 + } else { + p.enc = (*Buffer).enc_slice_int32 + p.size = size_slice_int32 + } + p.dec = (*Buffer).dec_slice_int32 + p.packedDec = (*Buffer).dec_slice_packed_int32 + case reflect.Uint32: + if p.Packed { + p.enc = (*Buffer).enc_slice_packed_uint32 + p.size = size_slice_packed_uint32 + } else { + p.enc = (*Buffer).enc_slice_uint32 + p.size = size_slice_uint32 + } + p.dec = (*Buffer).dec_slice_int32 + p.packedDec = (*Buffer).dec_slice_packed_int32 + case reflect.Int64, reflect.Uint64: + if p.Packed { + p.enc = (*Buffer).enc_slice_packed_int64 + p.size = size_slice_packed_int64 + } else { + p.enc = (*Buffer).enc_slice_int64 + p.size = size_slice_int64 + } + p.dec = (*Buffer).dec_slice_int64 + p.packedDec = (*Buffer).dec_slice_packed_int64 + case reflect.Uint8: + p.dec = (*Buffer).dec_slice_byte + if p.proto3 { + p.enc = (*Buffer).enc_proto3_slice_byte + p.size = size_proto3_slice_byte + } else { + p.enc = (*Buffer).enc_slice_byte + p.size = size_slice_byte + } + case reflect.Float32, reflect.Float64: + switch t2.Bits() { + case 32: + // can just treat them as bits + if p.Packed { + p.enc = (*Buffer).enc_slice_packed_uint32 + p.size = size_slice_packed_uint32 + } else { + p.enc = (*Buffer).enc_slice_uint32 + p.size = size_slice_uint32 + } + p.dec = (*Buffer).dec_slice_int32 + p.packedDec = (*Buffer).dec_slice_packed_int32 + case 64: + // can just treat them as bits + if p.Packed { + p.enc = (*Buffer).enc_slice_packed_int64 + p.size = size_slice_packed_int64 + } else { + p.enc = (*Buffer).enc_slice_int64 + p.size = size_slice_int64 + } + p.dec = (*Buffer).dec_slice_int64 + p.packedDec = (*Buffer).dec_slice_packed_int64 + default: + logNoSliceEnc(t1, t2) + break + } + case reflect.String: + p.enc = (*Buffer).enc_slice_string + p.dec = (*Buffer).dec_slice_string + p.size = size_slice_string + case reflect.Ptr: + switch t3 := t2.Elem(); t3.Kind() { + default: + fmt.Fprintf(os.Stderr, "proto: no ptr oenc for %T -> %T -> %T\n", t1, t2, t3) + break + case reflect.Struct: + p.stype = t2.Elem() + p.isMarshaler = isMarshaler(t2) + p.isUnmarshaler = isUnmarshaler(t2) + if p.Wire == "bytes" { + p.enc = (*Buffer).enc_slice_struct_message + p.dec = (*Buffer).dec_slice_struct_message + p.size = size_slice_struct_message + } else { + p.enc = (*Buffer).enc_slice_struct_group + p.dec = (*Buffer).dec_slice_struct_group + p.size = size_slice_struct_group + } + } + case reflect.Slice: + switch t2.Elem().Kind() { + default: + fmt.Fprintf(os.Stderr, "proto: no slice elem oenc for %T -> %T -> %T\n", t1, t2, t2.Elem()) + break + case reflect.Uint8: + p.enc = (*Buffer).enc_slice_slice_byte + p.dec = (*Buffer).dec_slice_slice_byte + p.size = size_slice_slice_byte + } + } + + case reflect.Map: + p.enc = (*Buffer).enc_new_map + p.dec = (*Buffer).dec_new_map + p.size = size_new_map + + p.mtype = t1 + p.mkeyprop = &Properties{} + p.mkeyprop.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp) + p.mvalprop = &Properties{} + vtype := p.mtype.Elem() + if vtype.Kind() != reflect.Ptr && vtype.Kind() != reflect.Slice { + // The value type is not a message (*T) or bytes ([]byte), + // so we need encoders for the pointer to this type. + vtype = reflect.PtrTo(vtype) + } + p.mvalprop.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp) + } + + // precalculate tag code + wire := p.WireType + if p.Packed { + wire = WireBytes + } + x := uint32(p.Tag)<<3 | uint32(wire) + i := 0 + for i = 0; x > 127; i++ { + p.tagbuf[i] = 0x80 | uint8(x&0x7F) + x >>= 7 + } + p.tagbuf[i] = uint8(x) + p.tagcode = p.tagbuf[0 : i+1] + + if p.stype != nil { + if lockGetProp { + p.sprop = GetProperties(p.stype) + } else { + p.sprop = getPropertiesLocked(p.stype) + } + } +} + +var ( + marshalerType = reflect.TypeOf((*Marshaler)(nil)).Elem() + unmarshalerType = reflect.TypeOf((*Unmarshaler)(nil)).Elem() +) + +// isMarshaler reports whether type t implements Marshaler. +func isMarshaler(t reflect.Type) bool { + // We're checking for (likely) pointer-receiver methods + // so if t is not a pointer, something is very wrong. + // The calls above only invoke isMarshaler on pointer types. + if t.Kind() != reflect.Ptr { + panic("proto: misuse of isMarshaler") + } + return t.Implements(marshalerType) +} + +// isUnmarshaler reports whether type t implements Unmarshaler. +func isUnmarshaler(t reflect.Type) bool { + // We're checking for (likely) pointer-receiver methods + // so if t is not a pointer, something is very wrong. + // The calls above only invoke isUnmarshaler on pointer types. + if t.Kind() != reflect.Ptr { + panic("proto: misuse of isUnmarshaler") + } + return t.Implements(unmarshalerType) +} + +// Init populates the properties from a protocol buffer struct tag. +func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) { + p.init(typ, name, tag, f, true) +} + +func (p *Properties) init(typ reflect.Type, name, tag string, f *reflect.StructField, lockGetProp bool) { + // "bytes,49,opt,def=hello!" + p.Name = name + p.OrigName = name + if f != nil { + p.field = toField(f) + } + if tag == "" { + return + } + p.Parse(tag) + p.setEncAndDec(typ, f, lockGetProp) +} + +var ( + propertiesMu sync.RWMutex + propertiesMap = make(map[reflect.Type]*StructProperties) +) + +// GetProperties returns the list of properties for the type represented by t. +// t must represent a generated struct type of a protocol message. +func GetProperties(t reflect.Type) *StructProperties { + if t.Kind() != reflect.Struct { + panic("proto: type must have kind struct") + } + + // Most calls to GetProperties in a long-running program will be + // retrieving details for types we have seen before. + propertiesMu.RLock() + sprop, ok := propertiesMap[t] + propertiesMu.RUnlock() + if ok { + if collectStats { + stats.Chit++ + } + return sprop + } + + propertiesMu.Lock() + sprop = getPropertiesLocked(t) + propertiesMu.Unlock() + return sprop +} + +// getPropertiesLocked requires that propertiesMu is held. +func getPropertiesLocked(t reflect.Type) *StructProperties { + if prop, ok := propertiesMap[t]; ok { + if collectStats { + stats.Chit++ + } + return prop + } + if collectStats { + stats.Cmiss++ + } + + prop := new(StructProperties) + // in case of recursive protos, fill this in now. + propertiesMap[t] = prop + + // build properties + prop.extendable = reflect.PtrTo(t).Implements(extendableProtoType) || + reflect.PtrTo(t).Implements(extendableProtoV1Type) + prop.unrecField = invalidField + prop.Prop = make([]*Properties, t.NumField()) + prop.order = make([]int, t.NumField()) + + for i := 0; i < t.NumField(); i++ { + f := t.Field(i) + p := new(Properties) + name := f.Name + p.init(f.Type, name, f.Tag.Get("protobuf"), &f, false) + + if f.Name == "XXX_InternalExtensions" { // special case + p.enc = (*Buffer).enc_exts + p.dec = nil // not needed + p.size = size_exts + } else if f.Name == "XXX_extensions" { // special case + p.enc = (*Buffer).enc_map + p.dec = nil // not needed + p.size = size_map + } else if f.Name == "XXX_unrecognized" { // special case + prop.unrecField = toField(&f) + } + oneof := f.Tag.Get("protobuf_oneof") // special case + if oneof != "" { + // Oneof fields don't use the traditional protobuf tag. + p.OrigName = oneof + } + prop.Prop[i] = p + prop.order[i] = i + if debug { + print(i, " ", f.Name, " ", t.String(), " ") + if p.Tag > 0 { + print(p.String()) + } + print("\n") + } + if p.enc == nil && !strings.HasPrefix(f.Name, "XXX_") && oneof == "" { + fmt.Fprintln(os.Stderr, "proto: no encoder for", f.Name, f.Type.String(), "[GetProperties]") + } + } + + // Re-order prop.order. + sort.Sort(prop) + + type oneofMessage interface { + XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{}) + } + if om, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok { + var oots []interface{} + prop.oneofMarshaler, prop.oneofUnmarshaler, prop.oneofSizer, oots = om.XXX_OneofFuncs() + prop.stype = t + + // Interpret oneof metadata. + prop.OneofTypes = make(map[string]*OneofProperties) + for _, oot := range oots { + oop := &OneofProperties{ + Type: reflect.ValueOf(oot).Type(), // *T + Prop: new(Properties), + } + sft := oop.Type.Elem().Field(0) + oop.Prop.Name = sft.Name + oop.Prop.Parse(sft.Tag.Get("protobuf")) + // There will be exactly one interface field that + // this new value is assignable to. + for i := 0; i < t.NumField(); i++ { + f := t.Field(i) + if f.Type.Kind() != reflect.Interface { + continue + } + if !oop.Type.AssignableTo(f.Type) { + continue + } + oop.Field = i + break + } + prop.OneofTypes[oop.Prop.OrigName] = oop + } + } + + // build required counts + // build tags + reqCount := 0 + prop.decoderOrigNames = make(map[string]int) + for i, p := range prop.Prop { + if strings.HasPrefix(p.Name, "XXX_") { + // Internal fields should not appear in tags/origNames maps. + // They are handled specially when encoding and decoding. + continue + } + if p.Required { + reqCount++ + } + prop.decoderTags.put(p.Tag, i) + prop.decoderOrigNames[p.OrigName] = i + } + prop.reqCount = reqCount + + return prop +} + +// Return the Properties object for the x[0]'th field of the structure. +func propByIndex(t reflect.Type, x []int) *Properties { + if len(x) != 1 { + fmt.Fprintf(os.Stderr, "proto: field index dimension %d (not 1) for type %s\n", len(x), t) + return nil + } + prop := GetProperties(t) + return prop.Prop[x[0]] +} + +// Get the address and type of a pointer to a struct from an interface. +func getbase(pb Message) (t reflect.Type, b structPointer, err error) { + if pb == nil { + err = ErrNil + return + } + // get the reflect type of the pointer to the struct. + t = reflect.TypeOf(pb) + // get the address of the struct. + value := reflect.ValueOf(pb) + b = toStructPointer(value) + return +} + +// A global registry of enum types. +// The generated code will register the generated maps by calling RegisterEnum. + +var enumValueMaps = make(map[string]map[string]int32) + +// RegisterEnum is called from the generated code to install the enum descriptor +// maps into the global table to aid parsing text format protocol buffers. +func RegisterEnum(typeName string, unusedNameMap map[int32]string, valueMap map[string]int32) { + if _, ok := enumValueMaps[typeName]; ok { + panic("proto: duplicate enum registered: " + typeName) + } + enumValueMaps[typeName] = valueMap +} + +// EnumValueMap returns the mapping from names to integers of the +// enum type enumType, or a nil if not found. +func EnumValueMap(enumType string) map[string]int32 { + return enumValueMaps[enumType] +} + +// A registry of all linked message types. +// The string is a fully-qualified proto name ("pkg.Message"). +var ( + protoTypes = make(map[string]reflect.Type) + revProtoTypes = make(map[reflect.Type]string) +) + +// RegisterType is called from generated code and maps from the fully qualified +// proto name to the type (pointer to struct) of the protocol buffer. +func RegisterType(x Message, name string) { + if _, ok := protoTypes[name]; ok { + // TODO: Some day, make this a panic. + log.Printf("proto: duplicate proto type registered: %s", name) + return + } + t := reflect.TypeOf(x) + protoTypes[name] = t + revProtoTypes[t] = name +} + +// MessageName returns the fully-qualified proto name for the given message type. +func MessageName(x Message) string { return revProtoTypes[reflect.TypeOf(x)] } + +// MessageType returns the message type (pointer to struct) for a named message. +func MessageType(name string) reflect.Type { return protoTypes[name] } + +// A registry of all linked proto files. +var ( + protoFiles = make(map[string][]byte) // file name => fileDescriptor +) + +// RegisterFile is called from generated code and maps from the +// full file name of a .proto file to its compressed FileDescriptorProto. +func RegisterFile(filename string, fileDescriptor []byte) { + protoFiles[filename] = fileDescriptor +} + +// FileDescriptor returns the compressed FileDescriptorProto for a .proto file. +func FileDescriptor(filename string) []byte { return protoFiles[filename] } diff --git a/vendor/github.com/golang/protobuf/proto/text.go b/vendor/github.com/golang/protobuf/proto/text.go new file mode 100644 index 0000000..965876b --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/text.go @@ -0,0 +1,854 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2010 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +package proto + +// Functions for writing the text protocol buffer format. + +import ( + "bufio" + "bytes" + "encoding" + "errors" + "fmt" + "io" + "log" + "math" + "reflect" + "sort" + "strings" +) + +var ( + newline = []byte("\n") + spaces = []byte(" ") + gtNewline = []byte(">\n") + endBraceNewline = []byte("}\n") + backslashN = []byte{'\\', 'n'} + backslashR = []byte{'\\', 'r'} + backslashT = []byte{'\\', 't'} + backslashDQ = []byte{'\\', '"'} + backslashBS = []byte{'\\', '\\'} + posInf = []byte("inf") + negInf = []byte("-inf") + nan = []byte("nan") +) + +type writer interface { + io.Writer + WriteByte(byte) error +} + +// textWriter is an io.Writer that tracks its indentation level. +type textWriter struct { + ind int + complete bool // if the current position is a complete line + compact bool // whether to write out as a one-liner + w writer +} + +func (w *textWriter) WriteString(s string) (n int, err error) { + if !strings.Contains(s, "\n") { + if !w.compact && w.complete { + w.writeIndent() + } + w.complete = false + return io.WriteString(w.w, s) + } + // WriteString is typically called without newlines, so this + // codepath and its copy are rare. We copy to avoid + // duplicating all of Write's logic here. + return w.Write([]byte(s)) +} + +func (w *textWriter) Write(p []byte) (n int, err error) { + newlines := bytes.Count(p, newline) + if newlines == 0 { + if !w.compact && w.complete { + w.writeIndent() + } + n, err = w.w.Write(p) + w.complete = false + return n, err + } + + frags := bytes.SplitN(p, newline, newlines+1) + if w.compact { + for i, frag := range frags { + if i > 0 { + if err := w.w.WriteByte(' '); err != nil { + return n, err + } + n++ + } + nn, err := w.w.Write(frag) + n += nn + if err != nil { + return n, err + } + } + return n, nil + } + + for i, frag := range frags { + if w.complete { + w.writeIndent() + } + nn, err := w.w.Write(frag) + n += nn + if err != nil { + return n, err + } + if i+1 < len(frags) { + if err := w.w.WriteByte('\n'); err != nil { + return n, err + } + n++ + } + } + w.complete = len(frags[len(frags)-1]) == 0 + return n, nil +} + +func (w *textWriter) WriteByte(c byte) error { + if w.compact && c == '\n' { + c = ' ' + } + if !w.compact && w.complete { + w.writeIndent() + } + err := w.w.WriteByte(c) + w.complete = c == '\n' + return err +} + +func (w *textWriter) indent() { w.ind++ } + +func (w *textWriter) unindent() { + if w.ind == 0 { + log.Print("proto: textWriter unindented too far") + return + } + w.ind-- +} + +func writeName(w *textWriter, props *Properties) error { + if _, err := w.WriteString(props.OrigName); err != nil { + return err + } + if props.Wire != "group" { + return w.WriteByte(':') + } + return nil +} + +// raw is the interface satisfied by RawMessage. +type raw interface { + Bytes() []byte +} + +func requiresQuotes(u string) bool { + // When type URL contains any characters except [0-9A-Za-z./\-]*, it must be quoted. + for _, ch := range u { + switch { + case ch == '.' || ch == '/' || ch == '_': + continue + case '0' <= ch && ch <= '9': + continue + case 'A' <= ch && ch <= 'Z': + continue + case 'a' <= ch && ch <= 'z': + continue + default: + return true + } + } + return false +} + +// isAny reports whether sv is a google.protobuf.Any message +func isAny(sv reflect.Value) bool { + type wkt interface { + XXX_WellKnownType() string + } + t, ok := sv.Addr().Interface().(wkt) + return ok && t.XXX_WellKnownType() == "Any" +} + +// writeProto3Any writes an expanded google.protobuf.Any message. +// +// It returns (false, nil) if sv value can't be unmarshaled (e.g. because +// required messages are not linked in). +// +// It returns (true, error) when sv was written in expanded format or an error +// was encountered. +func (tm *TextMarshaler) writeProto3Any(w *textWriter, sv reflect.Value) (bool, error) { + turl := sv.FieldByName("TypeUrl") + val := sv.FieldByName("Value") + if !turl.IsValid() || !val.IsValid() { + return true, errors.New("proto: invalid google.protobuf.Any message") + } + + b, ok := val.Interface().([]byte) + if !ok { + return true, errors.New("proto: invalid google.protobuf.Any message") + } + + parts := strings.Split(turl.String(), "/") + mt := MessageType(parts[len(parts)-1]) + if mt == nil { + return false, nil + } + m := reflect.New(mt.Elem()) + if err := Unmarshal(b, m.Interface().(Message)); err != nil { + return false, nil + } + w.Write([]byte("[")) + u := turl.String() + if requiresQuotes(u) { + writeString(w, u) + } else { + w.Write([]byte(u)) + } + if w.compact { + w.Write([]byte("]:<")) + } else { + w.Write([]byte("]: <\n")) + w.ind++ + } + if err := tm.writeStruct(w, m.Elem()); err != nil { + return true, err + } + if w.compact { + w.Write([]byte("> ")) + } else { + w.ind-- + w.Write([]byte(">\n")) + } + return true, nil +} + +func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error { + if tm.ExpandAny && isAny(sv) { + if canExpand, err := tm.writeProto3Any(w, sv); canExpand { + return err + } + } + st := sv.Type() + sprops := GetProperties(st) + for i := 0; i < sv.NumField(); i++ { + fv := sv.Field(i) + props := sprops.Prop[i] + name := st.Field(i).Name + + if strings.HasPrefix(name, "XXX_") { + // There are two XXX_ fields: + // XXX_unrecognized []byte + // XXX_extensions map[int32]proto.Extension + // The first is handled here; + // the second is handled at the bottom of this function. + if name == "XXX_unrecognized" && !fv.IsNil() { + if err := writeUnknownStruct(w, fv.Interface().([]byte)); err != nil { + return err + } + } + continue + } + if fv.Kind() == reflect.Ptr && fv.IsNil() { + // Field not filled in. This could be an optional field or + // a required field that wasn't filled in. Either way, there + // isn't anything we can show for it. + continue + } + if fv.Kind() == reflect.Slice && fv.IsNil() { + // Repeated field that is empty, or a bytes field that is unused. + continue + } + + if props.Repeated && fv.Kind() == reflect.Slice { + // Repeated field. + for j := 0; j < fv.Len(); j++ { + if err := writeName(w, props); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + v := fv.Index(j) + if v.Kind() == reflect.Ptr && v.IsNil() { + // A nil message in a repeated field is not valid, + // but we can handle that more gracefully than panicking. + if _, err := w.Write([]byte("\n")); err != nil { + return err + } + continue + } + if err := tm.writeAny(w, v, props); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + } + continue + } + if fv.Kind() == reflect.Map { + // Map fields are rendered as a repeated struct with key/value fields. + keys := fv.MapKeys() + sort.Sort(mapKeys(keys)) + for _, key := range keys { + val := fv.MapIndex(key) + if err := writeName(w, props); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + // open struct + if err := w.WriteByte('<'); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte('\n'); err != nil { + return err + } + } + w.indent() + // key + if _, err := w.WriteString("key:"); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + if err := tm.writeAny(w, key, props.mkeyprop); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + // nil values aren't legal, but we can avoid panicking because of them. + if val.Kind() != reflect.Ptr || !val.IsNil() { + // value + if _, err := w.WriteString("value:"); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + if err := tm.writeAny(w, val, props.mvalprop); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + } + // close struct + w.unindent() + if err := w.WriteByte('>'); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + } + continue + } + if props.proto3 && fv.Kind() == reflect.Slice && fv.Len() == 0 { + // empty bytes field + continue + } + if fv.Kind() != reflect.Ptr && fv.Kind() != reflect.Slice { + // proto3 non-repeated scalar field; skip if zero value + if isProto3Zero(fv) { + continue + } + } + + if fv.Kind() == reflect.Interface { + // Check if it is a oneof. + if st.Field(i).Tag.Get("protobuf_oneof") != "" { + // fv is nil, or holds a pointer to generated struct. + // That generated struct has exactly one field, + // which has a protobuf struct tag. + if fv.IsNil() { + continue + } + inner := fv.Elem().Elem() // interface -> *T -> T + tag := inner.Type().Field(0).Tag.Get("protobuf") + props = new(Properties) // Overwrite the outer props var, but not its pointee. + props.Parse(tag) + // Write the value in the oneof, not the oneof itself. + fv = inner.Field(0) + + // Special case to cope with malformed messages gracefully: + // If the value in the oneof is a nil pointer, don't panic + // in writeAny. + if fv.Kind() == reflect.Ptr && fv.IsNil() { + // Use errors.New so writeAny won't render quotes. + msg := errors.New("/* nil */") + fv = reflect.ValueOf(&msg).Elem() + } + } + } + + if err := writeName(w, props); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + if b, ok := fv.Interface().(raw); ok { + if err := writeRaw(w, b.Bytes()); err != nil { + return err + } + continue + } + + // Enums have a String method, so writeAny will work fine. + if err := tm.writeAny(w, fv, props); err != nil { + return err + } + + if err := w.WriteByte('\n'); err != nil { + return err + } + } + + // Extensions (the XXX_extensions field). + pv := sv.Addr() + if _, ok := extendable(pv.Interface()); ok { + if err := tm.writeExtensions(w, pv); err != nil { + return err + } + } + + return nil +} + +// writeRaw writes an uninterpreted raw message. +func writeRaw(w *textWriter, b []byte) error { + if err := w.WriteByte('<'); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte('\n'); err != nil { + return err + } + } + w.indent() + if err := writeUnknownStruct(w, b); err != nil { + return err + } + w.unindent() + if err := w.WriteByte('>'); err != nil { + return err + } + return nil +} + +// writeAny writes an arbitrary field. +func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Properties) error { + v = reflect.Indirect(v) + + // Floats have special cases. + if v.Kind() == reflect.Float32 || v.Kind() == reflect.Float64 { + x := v.Float() + var b []byte + switch { + case math.IsInf(x, 1): + b = posInf + case math.IsInf(x, -1): + b = negInf + case math.IsNaN(x): + b = nan + } + if b != nil { + _, err := w.Write(b) + return err + } + // Other values are handled below. + } + + // We don't attempt to serialise every possible value type; only those + // that can occur in protocol buffers. + switch v.Kind() { + case reflect.Slice: + // Should only be a []byte; repeated fields are handled in writeStruct. + if err := writeString(w, string(v.Bytes())); err != nil { + return err + } + case reflect.String: + if err := writeString(w, v.String()); err != nil { + return err + } + case reflect.Struct: + // Required/optional group/message. + var bra, ket byte = '<', '>' + if props != nil && props.Wire == "group" { + bra, ket = '{', '}' + } + if err := w.WriteByte(bra); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte('\n'); err != nil { + return err + } + } + w.indent() + if etm, ok := v.Interface().(encoding.TextMarshaler); ok { + text, err := etm.MarshalText() + if err != nil { + return err + } + if _, err = w.Write(text); err != nil { + return err + } + } else if err := tm.writeStruct(w, v); err != nil { + return err + } + w.unindent() + if err := w.WriteByte(ket); err != nil { + return err + } + default: + _, err := fmt.Fprint(w, v.Interface()) + return err + } + return nil +} + +// equivalent to C's isprint. +func isprint(c byte) bool { + return c >= 0x20 && c < 0x7f +} + +// writeString writes a string in the protocol buffer text format. +// It is similar to strconv.Quote except we don't use Go escape sequences, +// we treat the string as a byte sequence, and we use octal escapes. +// These differences are to maintain interoperability with the other +// languages' implementations of the text format. +func writeString(w *textWriter, s string) error { + // use WriteByte here to get any needed indent + if err := w.WriteByte('"'); err != nil { + return err + } + // Loop over the bytes, not the runes. + for i := 0; i < len(s); i++ { + var err error + // Divergence from C++: we don't escape apostrophes. + // There's no need to escape them, and the C++ parser + // copes with a naked apostrophe. + switch c := s[i]; c { + case '\n': + _, err = w.w.Write(backslashN) + case '\r': + _, err = w.w.Write(backslashR) + case '\t': + _, err = w.w.Write(backslashT) + case '"': + _, err = w.w.Write(backslashDQ) + case '\\': + _, err = w.w.Write(backslashBS) + default: + if isprint(c) { + err = w.w.WriteByte(c) + } else { + _, err = fmt.Fprintf(w.w, "\\%03o", c) + } + } + if err != nil { + return err + } + } + return w.WriteByte('"') +} + +func writeUnknownStruct(w *textWriter, data []byte) (err error) { + if !w.compact { + if _, err := fmt.Fprintf(w, "/* %d unknown bytes */\n", len(data)); err != nil { + return err + } + } + b := NewBuffer(data) + for b.index < len(b.buf) { + x, err := b.DecodeVarint() + if err != nil { + _, err := fmt.Fprintf(w, "/* %v */\n", err) + return err + } + wire, tag := x&7, x>>3 + if wire == WireEndGroup { + w.unindent() + if _, err := w.Write(endBraceNewline); err != nil { + return err + } + continue + } + if _, err := fmt.Fprint(w, tag); err != nil { + return err + } + if wire != WireStartGroup { + if err := w.WriteByte(':'); err != nil { + return err + } + } + if !w.compact || wire == WireStartGroup { + if err := w.WriteByte(' '); err != nil { + return err + } + } + switch wire { + case WireBytes: + buf, e := b.DecodeRawBytes(false) + if e == nil { + _, err = fmt.Fprintf(w, "%q", buf) + } else { + _, err = fmt.Fprintf(w, "/* %v */", e) + } + case WireFixed32: + x, err = b.DecodeFixed32() + err = writeUnknownInt(w, x, err) + case WireFixed64: + x, err = b.DecodeFixed64() + err = writeUnknownInt(w, x, err) + case WireStartGroup: + err = w.WriteByte('{') + w.indent() + case WireVarint: + x, err = b.DecodeVarint() + err = writeUnknownInt(w, x, err) + default: + _, err = fmt.Fprintf(w, "/* unknown wire type %d */", wire) + } + if err != nil { + return err + } + if err = w.WriteByte('\n'); err != nil { + return err + } + } + return nil +} + +func writeUnknownInt(w *textWriter, x uint64, err error) error { + if err == nil { + _, err = fmt.Fprint(w, x) + } else { + _, err = fmt.Fprintf(w, "/* %v */", err) + } + return err +} + +type int32Slice []int32 + +func (s int32Slice) Len() int { return len(s) } +func (s int32Slice) Less(i, j int) bool { return s[i] < s[j] } +func (s int32Slice) Swap(i, j int) { s[i], s[j] = s[j], s[i] } + +// writeExtensions writes all the extensions in pv. +// pv is assumed to be a pointer to a protocol message struct that is extendable. +func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error { + emap := extensionMaps[pv.Type().Elem()] + ep, _ := extendable(pv.Interface()) + + // Order the extensions by ID. + // This isn't strictly necessary, but it will give us + // canonical output, which will also make testing easier. + m, mu := ep.extensionsRead() + if m == nil { + return nil + } + mu.Lock() + ids := make([]int32, 0, len(m)) + for id := range m { + ids = append(ids, id) + } + sort.Sort(int32Slice(ids)) + mu.Unlock() + + for _, extNum := range ids { + ext := m[extNum] + var desc *ExtensionDesc + if emap != nil { + desc = emap[extNum] + } + if desc == nil { + // Unknown extension. + if err := writeUnknownStruct(w, ext.enc); err != nil { + return err + } + continue + } + + pb, err := GetExtension(ep, desc) + if err != nil { + return fmt.Errorf("failed getting extension: %v", err) + } + + // Repeated extensions will appear as a slice. + if !desc.repeated() { + if err := tm.writeExtension(w, desc.Name, pb); err != nil { + return err + } + } else { + v := reflect.ValueOf(pb) + for i := 0; i < v.Len(); i++ { + if err := tm.writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil { + return err + } + } + } + } + return nil +} + +func (tm *TextMarshaler) writeExtension(w *textWriter, name string, pb interface{}) error { + if _, err := fmt.Fprintf(w, "[%s]:", name); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + if err := tm.writeAny(w, reflect.ValueOf(pb), nil); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + return nil +} + +func (w *textWriter) writeIndent() { + if !w.complete { + return + } + remain := w.ind * 2 + for remain > 0 { + n := remain + if n > len(spaces) { + n = len(spaces) + } + w.w.Write(spaces[:n]) + remain -= n + } + w.complete = false +} + +// TextMarshaler is a configurable text format marshaler. +type TextMarshaler struct { + Compact bool // use compact text format (one line). + ExpandAny bool // expand google.protobuf.Any messages of known types +} + +// Marshal writes a given protocol buffer in text format. +// The only errors returned are from w. +func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error { + val := reflect.ValueOf(pb) + if pb == nil || val.IsNil() { + w.Write([]byte("")) + return nil + } + var bw *bufio.Writer + ww, ok := w.(writer) + if !ok { + bw = bufio.NewWriter(w) + ww = bw + } + aw := &textWriter{ + w: ww, + complete: true, + compact: tm.Compact, + } + + if etm, ok := pb.(encoding.TextMarshaler); ok { + text, err := etm.MarshalText() + if err != nil { + return err + } + if _, err = aw.Write(text); err != nil { + return err + } + if bw != nil { + return bw.Flush() + } + return nil + } + // Dereference the received pointer so we don't have outer < and >. + v := reflect.Indirect(val) + if err := tm.writeStruct(aw, v); err != nil { + return err + } + if bw != nil { + return bw.Flush() + } + return nil +} + +// Text is the same as Marshal, but returns the string directly. +func (tm *TextMarshaler) Text(pb Message) string { + var buf bytes.Buffer + tm.Marshal(&buf, pb) + return buf.String() +} + +var ( + defaultTextMarshaler = TextMarshaler{} + compactTextMarshaler = TextMarshaler{Compact: true} +) + +// TODO: consider removing some of the Marshal functions below. + +// MarshalText writes a given protocol buffer in text format. +// The only errors returned are from w. +func MarshalText(w io.Writer, pb Message) error { return defaultTextMarshaler.Marshal(w, pb) } + +// MarshalTextString is the same as MarshalText, but returns the string directly. +func MarshalTextString(pb Message) string { return defaultTextMarshaler.Text(pb) } + +// CompactText writes a given protocol buffer in compact text format (one line). +func CompactText(w io.Writer, pb Message) error { return compactTextMarshaler.Marshal(w, pb) } + +// CompactTextString is the same as CompactText, but returns the string directly. +func CompactTextString(pb Message) string { return compactTextMarshaler.Text(pb) } diff --git a/vendor/github.com/golang/protobuf/proto/text_parser.go b/vendor/github.com/golang/protobuf/proto/text_parser.go new file mode 100644 index 0000000..0b8c59f --- /dev/null +++ b/vendor/github.com/golang/protobuf/proto/text_parser.go @@ -0,0 +1,880 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2010 The Go Authors. All rights reserved. +// https://github.com/golang/protobuf +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +package proto + +// Functions for parsing the Text protocol buffer format. +// TODO: message sets. + +import ( + "encoding" + "errors" + "fmt" + "reflect" + "strconv" + "strings" + "unicode/utf8" +) + +type ParseError struct { + Message string + Line int // 1-based line number + Offset int // 0-based byte offset from start of input +} + +func (p *ParseError) Error() string { + if p.Line == 1 { + // show offset only for first line + return fmt.Sprintf("line 1.%d: %v", p.Offset, p.Message) + } + return fmt.Sprintf("line %d: %v", p.Line, p.Message) +} + +type token struct { + value string + err *ParseError + line int // line number + offset int // byte number from start of input, not start of line + unquoted string // the unquoted version of value, if it was a quoted string +} + +func (t *token) String() string { + if t.err == nil { + return fmt.Sprintf("%q (line=%d, offset=%d)", t.value, t.line, t.offset) + } + return fmt.Sprintf("parse error: %v", t.err) +} + +type textParser struct { + s string // remaining input + done bool // whether the parsing is finished (success or error) + backed bool // whether back() was called + offset, line int + cur token +} + +func newTextParser(s string) *textParser { + p := new(textParser) + p.s = s + p.line = 1 + p.cur.line = 1 + return p +} + +func (p *textParser) errorf(format string, a ...interface{}) *ParseError { + pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset} + p.cur.err = pe + p.done = true + return pe +} + +// Numbers and identifiers are matched by [-+._A-Za-z0-9] +func isIdentOrNumberChar(c byte) bool { + switch { + case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z': + return true + case '0' <= c && c <= '9': + return true + } + switch c { + case '-', '+', '.', '_': + return true + } + return false +} + +func isWhitespace(c byte) bool { + switch c { + case ' ', '\t', '\n', '\r': + return true + } + return false +} + +func isQuote(c byte) bool { + switch c { + case '"', '\'': + return true + } + return false +} + +func (p *textParser) skipWhitespace() { + i := 0 + for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') { + if p.s[i] == '#' { + // comment; skip to end of line or input + for i < len(p.s) && p.s[i] != '\n' { + i++ + } + if i == len(p.s) { + break + } + } + if p.s[i] == '\n' { + p.line++ + } + i++ + } + p.offset += i + p.s = p.s[i:len(p.s)] + if len(p.s) == 0 { + p.done = true + } +} + +func (p *textParser) advance() { + // Skip whitespace + p.skipWhitespace() + if p.done { + return + } + + // Start of non-whitespace + p.cur.err = nil + p.cur.offset, p.cur.line = p.offset, p.line + p.cur.unquoted = "" + switch p.s[0] { + case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/': + // Single symbol + p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)] + case '"', '\'': + // Quoted string + i := 1 + for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' { + if p.s[i] == '\\' && i+1 < len(p.s) { + // skip escaped char + i++ + } + i++ + } + if i >= len(p.s) || p.s[i] != p.s[0] { + p.errorf("unmatched quote") + return + } + unq, err := unquoteC(p.s[1:i], rune(p.s[0])) + if err != nil { + p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err) + return + } + p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)] + p.cur.unquoted = unq + default: + i := 0 + for i < len(p.s) && isIdentOrNumberChar(p.s[i]) { + i++ + } + if i == 0 { + p.errorf("unexpected byte %#x", p.s[0]) + return + } + p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)] + } + p.offset += len(p.cur.value) +} + +var ( + errBadUTF8 = errors.New("proto: bad UTF-8") + errBadHex = errors.New("proto: bad hexadecimal") +) + +func unquoteC(s string, quote rune) (string, error) { + // This is based on C++'s tokenizer.cc. + // Despite its name, this is *not* parsing C syntax. + // For instance, "\0" is an invalid quoted string. + + // Avoid allocation in trivial cases. + simple := true + for _, r := range s { + if r == '\\' || r == quote { + simple = false + break + } + } + if simple { + return s, nil + } + + buf := make([]byte, 0, 3*len(s)/2) + for len(s) > 0 { + r, n := utf8.DecodeRuneInString(s) + if r == utf8.RuneError && n == 1 { + return "", errBadUTF8 + } + s = s[n:] + if r != '\\' { + if r < utf8.RuneSelf { + buf = append(buf, byte(r)) + } else { + buf = append(buf, string(r)...) + } + continue + } + + ch, tail, err := unescape(s) + if err != nil { + return "", err + } + buf = append(buf, ch...) + s = tail + } + return string(buf), nil +} + +func unescape(s string) (ch string, tail string, err error) { + r, n := utf8.DecodeRuneInString(s) + if r == utf8.RuneError && n == 1 { + return "", "", errBadUTF8 + } + s = s[n:] + switch r { + case 'a': + return "\a", s, nil + case 'b': + return "\b", s, nil + case 'f': + return "\f", s, nil + case 'n': + return "\n", s, nil + case 'r': + return "\r", s, nil + case 't': + return "\t", s, nil + case 'v': + return "\v", s, nil + case '?': + return "?", s, nil // trigraph workaround + case '\'', '"', '\\': + return string(r), s, nil + case '0', '1', '2', '3', '4', '5', '6', '7', 'x', 'X': + if len(s) < 2 { + return "", "", fmt.Errorf(`\%c requires 2 following digits`, r) + } + base := 8 + ss := s[:2] + s = s[2:] + if r == 'x' || r == 'X' { + base = 16 + } else { + ss = string(r) + ss + } + i, err := strconv.ParseUint(ss, base, 8) + if err != nil { + return "", "", err + } + return string([]byte{byte(i)}), s, nil + case 'u', 'U': + n := 4 + if r == 'U' { + n = 8 + } + if len(s) < n { + return "", "", fmt.Errorf(`\%c requires %d digits`, r, n) + } + + bs := make([]byte, n/2) + for i := 0; i < n; i += 2 { + a, ok1 := unhex(s[i]) + b, ok2 := unhex(s[i+1]) + if !ok1 || !ok2 { + return "", "", errBadHex + } + bs[i/2] = a<<4 | b + } + s = s[n:] + return string(bs), s, nil + } + return "", "", fmt.Errorf(`unknown escape \%c`, r) +} + +// Adapted from src/pkg/strconv/quote.go. +func unhex(b byte) (v byte, ok bool) { + switch { + case '0' <= b && b <= '9': + return b - '0', true + case 'a' <= b && b <= 'f': + return b - 'a' + 10, true + case 'A' <= b && b <= 'F': + return b - 'A' + 10, true + } + return 0, false +} + +// Back off the parser by one token. Can only be done between calls to next(). +// It makes the next advance() a no-op. +func (p *textParser) back() { p.backed = true } + +// Advances the parser and returns the new current token. +func (p *textParser) next() *token { + if p.backed || p.done { + p.backed = false + return &p.cur + } + p.advance() + if p.done { + p.cur.value = "" + } else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) { + // Look for multiple quoted strings separated by whitespace, + // and concatenate them. + cat := p.cur + for { + p.skipWhitespace() + if p.done || !isQuote(p.s[0]) { + break + } + p.advance() + if p.cur.err != nil { + return &p.cur + } + cat.value += " " + p.cur.value + cat.unquoted += p.cur.unquoted + } + p.done = false // parser may have seen EOF, but we want to return cat + p.cur = cat + } + return &p.cur +} + +func (p *textParser) consumeToken(s string) error { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value != s { + p.back() + return p.errorf("expected %q, found %q", s, tok.value) + } + return nil +} + +// Return a RequiredNotSetError indicating which required field was not set. +func (p *textParser) missingRequiredFieldError(sv reflect.Value) *RequiredNotSetError { + st := sv.Type() + sprops := GetProperties(st) + for i := 0; i < st.NumField(); i++ { + if !isNil(sv.Field(i)) { + continue + } + + props := sprops.Prop[i] + if props.Required { + return &RequiredNotSetError{fmt.Sprintf("%v.%v", st, props.OrigName)} + } + } + return &RequiredNotSetError{fmt.Sprintf("%v.", st)} // should not happen +} + +// Returns the index in the struct for the named field, as well as the parsed tag properties. +func structFieldByName(sprops *StructProperties, name string) (int, *Properties, bool) { + i, ok := sprops.decoderOrigNames[name] + if ok { + return i, sprops.Prop[i], true + } + return -1, nil, false +} + +// Consume a ':' from the input stream (if the next token is a colon), +// returning an error if a colon is needed but not present. +func (p *textParser) checkForColon(props *Properties, typ reflect.Type) *ParseError { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value != ":" { + // Colon is optional when the field is a group or message. + needColon := true + switch props.Wire { + case "group": + needColon = false + case "bytes": + // A "bytes" field is either a message, a string, or a repeated field; + // those three become *T, *string and []T respectively, so we can check for + // this field being a pointer to a non-string. + if typ.Kind() == reflect.Ptr { + // *T or *string + if typ.Elem().Kind() == reflect.String { + break + } + } else if typ.Kind() == reflect.Slice { + // []T or []*T + if typ.Elem().Kind() != reflect.Ptr { + break + } + } else if typ.Kind() == reflect.String { + // The proto3 exception is for a string field, + // which requires a colon. + break + } + needColon = false + } + if needColon { + return p.errorf("expected ':', found %q", tok.value) + } + p.back() + } + return nil +} + +func (p *textParser) readStruct(sv reflect.Value, terminator string) error { + st := sv.Type() + sprops := GetProperties(st) + reqCount := sprops.reqCount + var reqFieldErr error + fieldSet := make(map[string]bool) + // A struct is a sequence of "name: value", terminated by one of + // '>' or '}', or the end of the input. A name may also be + // "[extension]" or "[type/url]". + // + // The whole struct can also be an expanded Any message, like: + // [type/url] < ... struct contents ... > + for { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value == terminator { + break + } + if tok.value == "[" { + // Looks like an extension or an Any. + // + // TODO: Check whether we need to handle + // namespace rooted names (e.g. ".something.Foo"). + extName, err := p.consumeExtName() + if err != nil { + return err + } + + if s := strings.LastIndex(extName, "/"); s >= 0 { + // If it contains a slash, it's an Any type URL. + messageName := extName[s+1:] + mt := MessageType(messageName) + if mt == nil { + return p.errorf("unrecognized message %q in google.protobuf.Any", messageName) + } + tok = p.next() + if tok.err != nil { + return tok.err + } + // consume an optional colon + if tok.value == ":" { + tok = p.next() + if tok.err != nil { + return tok.err + } + } + var terminator string + switch tok.value { + case "<": + terminator = ">" + case "{": + terminator = "}" + default: + return p.errorf("expected '{' or '<', found %q", tok.value) + } + v := reflect.New(mt.Elem()) + if pe := p.readStruct(v.Elem(), terminator); pe != nil { + return pe + } + b, err := Marshal(v.Interface().(Message)) + if err != nil { + return p.errorf("failed to marshal message of type %q: %v", messageName, err) + } + sv.FieldByName("TypeUrl").SetString(extName) + sv.FieldByName("Value").SetBytes(b) + continue + } + + var desc *ExtensionDesc + // This could be faster, but it's functional. + // TODO: Do something smarter than a linear scan. + for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) { + if d.Name == extName { + desc = d + break + } + } + if desc == nil { + return p.errorf("unrecognized extension %q", extName) + } + + props := &Properties{} + props.Parse(desc.Tag) + + typ := reflect.TypeOf(desc.ExtensionType) + if err := p.checkForColon(props, typ); err != nil { + return err + } + + rep := desc.repeated() + + // Read the extension structure, and set it in + // the value we're constructing. + var ext reflect.Value + if !rep { + ext = reflect.New(typ).Elem() + } else { + ext = reflect.New(typ.Elem()).Elem() + } + if err := p.readAny(ext, props); err != nil { + if _, ok := err.(*RequiredNotSetError); !ok { + return err + } + reqFieldErr = err + } + ep := sv.Addr().Interface().(Message) + if !rep { + SetExtension(ep, desc, ext.Interface()) + } else { + old, err := GetExtension(ep, desc) + var sl reflect.Value + if err == nil { + sl = reflect.ValueOf(old) // existing slice + } else { + sl = reflect.MakeSlice(typ, 0, 1) + } + sl = reflect.Append(sl, ext) + SetExtension(ep, desc, sl.Interface()) + } + if err := p.consumeOptionalSeparator(); err != nil { + return err + } + continue + } + + // This is a normal, non-extension field. + name := tok.value + var dst reflect.Value + fi, props, ok := structFieldByName(sprops, name) + if ok { + dst = sv.Field(fi) + } else if oop, ok := sprops.OneofTypes[name]; ok { + // It is a oneof. + props = oop.Prop + nv := reflect.New(oop.Type.Elem()) + dst = nv.Elem().Field(0) + sv.Field(oop.Field).Set(nv) + } + if !dst.IsValid() { + return p.errorf("unknown field name %q in %v", name, st) + } + + if dst.Kind() == reflect.Map { + // Consume any colon. + if err := p.checkForColon(props, dst.Type()); err != nil { + return err + } + + // Construct the map if it doesn't already exist. + if dst.IsNil() { + dst.Set(reflect.MakeMap(dst.Type())) + } + key := reflect.New(dst.Type().Key()).Elem() + val := reflect.New(dst.Type().Elem()).Elem() + + // The map entry should be this sequence of tokens: + // < key : KEY value : VALUE > + // However, implementations may omit key or value, and technically + // we should support them in any order. See b/28924776 for a time + // this went wrong. + + tok := p.next() + var terminator string + switch tok.value { + case "<": + terminator = ">" + case "{": + terminator = "}" + default: + return p.errorf("expected '{' or '<', found %q", tok.value) + } + for { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value == terminator { + break + } + switch tok.value { + case "key": + if err := p.consumeToken(":"); err != nil { + return err + } + if err := p.readAny(key, props.mkeyprop); err != nil { + return err + } + if err := p.consumeOptionalSeparator(); err != nil { + return err + } + case "value": + if err := p.checkForColon(props.mvalprop, dst.Type().Elem()); err != nil { + return err + } + if err := p.readAny(val, props.mvalprop); err != nil { + return err + } + if err := p.consumeOptionalSeparator(); err != nil { + return err + } + default: + p.back() + return p.errorf(`expected "key", "value", or %q, found %q`, terminator, tok.value) + } + } + + dst.SetMapIndex(key, val) + continue + } + + // Check that it's not already set if it's not a repeated field. + if !props.Repeated && fieldSet[name] { + return p.errorf("non-repeated field %q was repeated", name) + } + + if err := p.checkForColon(props, dst.Type()); err != nil { + return err + } + + // Parse into the field. + fieldSet[name] = true + if err := p.readAny(dst, props); err != nil { + if _, ok := err.(*RequiredNotSetError); !ok { + return err + } + reqFieldErr = err + } + if props.Required { + reqCount-- + } + + if err := p.consumeOptionalSeparator(); err != nil { + return err + } + + } + + if reqCount > 0 { + return p.missingRequiredFieldError(sv) + } + return reqFieldErr +} + +// consumeExtName consumes extension name or expanded Any type URL and the +// following ']'. It returns the name or URL consumed. +func (p *textParser) consumeExtName() (string, error) { + tok := p.next() + if tok.err != nil { + return "", tok.err + } + + // If extension name or type url is quoted, it's a single token. + if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] { + name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0])) + if err != nil { + return "", err + } + return name, p.consumeToken("]") + } + + // Consume everything up to "]" + var parts []string + for tok.value != "]" { + parts = append(parts, tok.value) + tok = p.next() + if tok.err != nil { + return "", p.errorf("unrecognized type_url or extension name: %s", tok.err) + } + } + return strings.Join(parts, ""), nil +} + +// consumeOptionalSeparator consumes an optional semicolon or comma. +// It is used in readStruct to provide backward compatibility. +func (p *textParser) consumeOptionalSeparator() error { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value != ";" && tok.value != "," { + p.back() + } + return nil +} + +func (p *textParser) readAny(v reflect.Value, props *Properties) error { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value == "" { + return p.errorf("unexpected EOF") + } + + switch fv := v; fv.Kind() { + case reflect.Slice: + at := v.Type() + if at.Elem().Kind() == reflect.Uint8 { + // Special case for []byte + if tok.value[0] != '"' && tok.value[0] != '\'' { + // Deliberately written out here, as the error after + // this switch statement would write "invalid []byte: ...", + // which is not as user-friendly. + return p.errorf("invalid string: %v", tok.value) + } + bytes := []byte(tok.unquoted) + fv.Set(reflect.ValueOf(bytes)) + return nil + } + // Repeated field. + if tok.value == "[" { + // Repeated field with list notation, like [1,2,3]. + for { + fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem())) + err := p.readAny(fv.Index(fv.Len()-1), props) + if err != nil { + return err + } + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value == "]" { + break + } + if tok.value != "," { + return p.errorf("Expected ']' or ',' found %q", tok.value) + } + } + return nil + } + // One value of the repeated field. + p.back() + fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem())) + return p.readAny(fv.Index(fv.Len()-1), props) + case reflect.Bool: + // Either "true", "false", 1 or 0. + switch tok.value { + case "true", "1": + fv.SetBool(true) + return nil + case "false", "0": + fv.SetBool(false) + return nil + } + case reflect.Float32, reflect.Float64: + v := tok.value + // Ignore 'f' for compatibility with output generated by C++, but don't + // remove 'f' when the value is "-inf" or "inf". + if strings.HasSuffix(v, "f") && tok.value != "-inf" && tok.value != "inf" { + v = v[:len(v)-1] + } + if f, err := strconv.ParseFloat(v, fv.Type().Bits()); err == nil { + fv.SetFloat(f) + return nil + } + case reflect.Int32: + if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil { + fv.SetInt(x) + return nil + } + + if len(props.Enum) == 0 { + break + } + m, ok := enumValueMaps[props.Enum] + if !ok { + break + } + x, ok := m[tok.value] + if !ok { + break + } + fv.SetInt(int64(x)) + return nil + case reflect.Int64: + if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil { + fv.SetInt(x) + return nil + } + + case reflect.Ptr: + // A basic field (indirected through pointer), or a repeated message/group + p.back() + fv.Set(reflect.New(fv.Type().Elem())) + return p.readAny(fv.Elem(), props) + case reflect.String: + if tok.value[0] == '"' || tok.value[0] == '\'' { + fv.SetString(tok.unquoted) + return nil + } + case reflect.Struct: + var terminator string + switch tok.value { + case "{": + terminator = "}" + case "<": + terminator = ">" + default: + return p.errorf("expected '{' or '<', found %q", tok.value) + } + // TODO: Handle nested messages which implement encoding.TextUnmarshaler. + return p.readStruct(fv, terminator) + case reflect.Uint32: + if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil { + fv.SetUint(uint64(x)) + return nil + } + case reflect.Uint64: + if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil { + fv.SetUint(x) + return nil + } + } + return p.errorf("invalid %v: %v", v.Type(), tok.value) +} + +// UnmarshalText reads a protocol buffer in Text format. UnmarshalText resets pb +// before starting to unmarshal, so any existing data in pb is always removed. +// If a required field is not set and no other error occurs, +// UnmarshalText returns *RequiredNotSetError. +func UnmarshalText(s string, pb Message) error { + if um, ok := pb.(encoding.TextUnmarshaler); ok { + err := um.UnmarshalText([]byte(s)) + return err + } + pb.Reset() + v := reflect.ValueOf(pb) + if pe := newTextParser(s).readStruct(v.Elem(), ""); pe != nil { + return pe + } + return nil +} diff --git a/vendor/golang.org/x/net/AUTHORS b/vendor/golang.org/x/net/AUTHORS new file mode 100644 index 0000000..15167cd --- /dev/null +++ b/vendor/golang.org/x/net/AUTHORS @@ -0,0 +1,3 @@ +# This source code refers to The Go Authors for copyright purposes. +# The master list of authors is in the main Go distribution, +# visible at http://tip.golang.org/AUTHORS. diff --git a/vendor/golang.org/x/net/CONTRIBUTING.md b/vendor/golang.org/x/net/CONTRIBUTING.md new file mode 100644 index 0000000..88dff59 --- /dev/null +++ b/vendor/golang.org/x/net/CONTRIBUTING.md @@ -0,0 +1,31 @@ +# Contributing to Go + +Go is an open source project. + +It is the work of hundreds of contributors. We appreciate your help! + + +## Filing issues + +When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions: + +1. What version of Go are you using (`go version`)? +2. What operating system and processor architecture are you using? +3. What did you do? +4. What did you expect to see? +5. What did you see instead? + +General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker. +The gophers there will answer or ask you to file an issue if you've tripped over a bug. + +## Contributing code + +Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html) +before sending patches. + +**We do not accept GitHub pull requests** +(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review). + +Unless otherwise noted, the Go source files are distributed under +the BSD-style license found in the LICENSE file. + diff --git a/vendor/golang.org/x/net/CONTRIBUTORS b/vendor/golang.org/x/net/CONTRIBUTORS new file mode 100644 index 0000000..1c4577e --- /dev/null +++ b/vendor/golang.org/x/net/CONTRIBUTORS @@ -0,0 +1,3 @@ +# This source code was written by the Go contributors. +# The master list of contributors is in the main Go distribution, +# visible at http://tip.golang.org/CONTRIBUTORS. diff --git a/vendor/golang.org/x/net/LICENSE b/vendor/golang.org/x/net/LICENSE new file mode 100644 index 0000000..6a66aea --- /dev/null +++ b/vendor/golang.org/x/net/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2009 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/golang.org/x/net/PATENTS b/vendor/golang.org/x/net/PATENTS new file mode 100644 index 0000000..7330990 --- /dev/null +++ b/vendor/golang.org/x/net/PATENTS @@ -0,0 +1,22 @@ +Additional IP Rights Grant (Patents) + +"This implementation" means the copyrightable works distributed by +Google as part of the Go project. + +Google hereby grants to You a perpetual, worldwide, non-exclusive, +no-charge, royalty-free, irrevocable (except as stated in this section) +patent license to make, have made, use, offer to sell, sell, import, +transfer and otherwise run, modify and propagate the contents of this +implementation of Go, where such license applies only to those patent +claims, both currently owned or controlled by Google and acquired in +the future, licensable by Google that are necessarily infringed by this +implementation of Go. This grant does not include claims that would be +infringed only as a consequence of further modification of this +implementation. If you or your agent or exclusive licensee institute or +order or agree to the institution of patent litigation against any +entity (including a cross-claim or counterclaim in a lawsuit) alleging +that this implementation of Go or any code incorporated within this +implementation of Go constitutes direct or contributory patent +infringement, or inducement of patent infringement, then any patent +rights granted to you under this License for this implementation of Go +shall terminate as of the date such litigation is filed. diff --git a/vendor/golang.org/x/net/README b/vendor/golang.org/x/net/README new file mode 100644 index 0000000..6b13d8e --- /dev/null +++ b/vendor/golang.org/x/net/README @@ -0,0 +1,3 @@ +This repository holds supplementary Go networking libraries. + +To submit changes to this repository, see http://golang.org/doc/contribute.html. diff --git a/vendor/golang.org/x/net/codereview.cfg b/vendor/golang.org/x/net/codereview.cfg new file mode 100644 index 0000000..3f8b14b --- /dev/null +++ b/vendor/golang.org/x/net/codereview.cfg @@ -0,0 +1 @@ +issuerepo: golang/go diff --git a/vendor/golang.org/x/net/context/context.go b/vendor/golang.org/x/net/context/context.go new file mode 100644 index 0000000..134654c --- /dev/null +++ b/vendor/golang.org/x/net/context/context.go @@ -0,0 +1,156 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package context defines the Context type, which carries deadlines, +// cancelation signals, and other request-scoped values across API boundaries +// and between processes. +// +// Incoming requests to a server should create a Context, and outgoing calls to +// servers should accept a Context. The chain of function calls between must +// propagate the Context, optionally replacing it with a modified copy created +// using WithDeadline, WithTimeout, WithCancel, or WithValue. +// +// Programs that use Contexts should follow these rules to keep interfaces +// consistent across packages and enable static analysis tools to check context +// propagation: +// +// Do not store Contexts inside a struct type; instead, pass a Context +// explicitly to each function that needs it. The Context should be the first +// parameter, typically named ctx: +// +// func DoSomething(ctx context.Context, arg Arg) error { +// // ... use ctx ... +// } +// +// Do not pass a nil Context, even if a function permits it. Pass context.TODO +// if you are unsure about which Context to use. +// +// Use context Values only for request-scoped data that transits processes and +// APIs, not for passing optional parameters to functions. +// +// The same Context may be passed to functions running in different goroutines; +// Contexts are safe for simultaneous use by multiple goroutines. +// +// See http://blog.golang.org/context for example code for a server that uses +// Contexts. +package context // import "golang.org/x/net/context" + +import "time" + +// A Context carries a deadline, a cancelation signal, and other values across +// API boundaries. +// +// Context's methods may be called by multiple goroutines simultaneously. +type Context interface { + // Deadline returns the time when work done on behalf of this context + // should be canceled. Deadline returns ok==false when no deadline is + // set. Successive calls to Deadline return the same results. + Deadline() (deadline time.Time, ok bool) + + // Done returns a channel that's closed when work done on behalf of this + // context should be canceled. Done may return nil if this context can + // never be canceled. Successive calls to Done return the same value. + // + // WithCancel arranges for Done to be closed when cancel is called; + // WithDeadline arranges for Done to be closed when the deadline + // expires; WithTimeout arranges for Done to be closed when the timeout + // elapses. + // + // Done is provided for use in select statements: + // + // // Stream generates values with DoSomething and sends them to out + // // until DoSomething returns an error or ctx.Done is closed. + // func Stream(ctx context.Context, out chan<- Value) error { + // for { + // v, err := DoSomething(ctx) + // if err != nil { + // return err + // } + // select { + // case <-ctx.Done(): + // return ctx.Err() + // case out <- v: + // } + // } + // } + // + // See http://blog.golang.org/pipelines for more examples of how to use + // a Done channel for cancelation. + Done() <-chan struct{} + + // Err returns a non-nil error value after Done is closed. Err returns + // Canceled if the context was canceled or DeadlineExceeded if the + // context's deadline passed. No other values for Err are defined. + // After Done is closed, successive calls to Err return the same value. + Err() error + + // Value returns the value associated with this context for key, or nil + // if no value is associated with key. Successive calls to Value with + // the same key returns the same result. + // + // Use context values only for request-scoped data that transits + // processes and API boundaries, not for passing optional parameters to + // functions. + // + // A key identifies a specific value in a Context. Functions that wish + // to store values in Context typically allocate a key in a global + // variable then use that key as the argument to context.WithValue and + // Context.Value. A key can be any type that supports equality; + // packages should define keys as an unexported type to avoid + // collisions. + // + // Packages that define a Context key should provide type-safe accessors + // for the values stores using that key: + // + // // Package user defines a User type that's stored in Contexts. + // package user + // + // import "golang.org/x/net/context" + // + // // User is the type of value stored in the Contexts. + // type User struct {...} + // + // // key is an unexported type for keys defined in this package. + // // This prevents collisions with keys defined in other packages. + // type key int + // + // // userKey is the key for user.User values in Contexts. It is + // // unexported; clients use user.NewContext and user.FromContext + // // instead of using this key directly. + // var userKey key = 0 + // + // // NewContext returns a new Context that carries value u. + // func NewContext(ctx context.Context, u *User) context.Context { + // return context.WithValue(ctx, userKey, u) + // } + // + // // FromContext returns the User value stored in ctx, if any. + // func FromContext(ctx context.Context) (*User, bool) { + // u, ok := ctx.Value(userKey).(*User) + // return u, ok + // } + Value(key interface{}) interface{} +} + +// Background returns a non-nil, empty Context. It is never canceled, has no +// values, and has no deadline. It is typically used by the main function, +// initialization, and tests, and as the top-level Context for incoming +// requests. +func Background() Context { + return background +} + +// TODO returns a non-nil, empty Context. Code should use context.TODO when +// it's unclear which Context to use or it is not yet available (because the +// surrounding function has not yet been extended to accept a Context +// parameter). TODO is recognized by static analysis tools that determine +// whether Contexts are propagated correctly in a program. +func TODO() Context { + return todo +} + +// A CancelFunc tells an operation to abandon its work. +// A CancelFunc does not wait for the work to stop. +// After the first call, subsequent calls to a CancelFunc do nothing. +type CancelFunc func() diff --git a/vendor/golang.org/x/net/context/go17.go b/vendor/golang.org/x/net/context/go17.go new file mode 100644 index 0000000..f8cda19 --- /dev/null +++ b/vendor/golang.org/x/net/context/go17.go @@ -0,0 +1,72 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build go1.7 + +package context + +import ( + "context" // standard library's context, as of Go 1.7 + "time" +) + +var ( + todo = context.TODO() + background = context.Background() +) + +// Canceled is the error returned by Context.Err when the context is canceled. +var Canceled = context.Canceled + +// DeadlineExceeded is the error returned by Context.Err when the context's +// deadline passes. +var DeadlineExceeded = context.DeadlineExceeded + +// WithCancel returns a copy of parent with a new Done channel. The returned +// context's Done channel is closed when the returned cancel function is called +// or when the parent context's Done channel is closed, whichever happens first. +// +// Canceling this context releases resources associated with it, so code should +// call cancel as soon as the operations running in this Context complete. +func WithCancel(parent Context) (ctx Context, cancel CancelFunc) { + ctx, f := context.WithCancel(parent) + return ctx, CancelFunc(f) +} + +// WithDeadline returns a copy of the parent context with the deadline adjusted +// to be no later than d. If the parent's deadline is already earlier than d, +// WithDeadline(parent, d) is semantically equivalent to parent. The returned +// context's Done channel is closed when the deadline expires, when the returned +// cancel function is called, or when the parent context's Done channel is +// closed, whichever happens first. +// +// Canceling this context releases resources associated with it, so code should +// call cancel as soon as the operations running in this Context complete. +func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) { + ctx, f := context.WithDeadline(parent, deadline) + return ctx, CancelFunc(f) +} + +// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)). +// +// Canceling this context releases resources associated with it, so code should +// call cancel as soon as the operations running in this Context complete: +// +// func slowOperationWithTimeout(ctx context.Context) (Result, error) { +// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond) +// defer cancel() // releases resources if slowOperation completes before timeout elapses +// return slowOperation(ctx) +// } +func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) { + return WithDeadline(parent, time.Now().Add(timeout)) +} + +// WithValue returns a copy of parent in which the value associated with key is +// val. +// +// Use context Values only for request-scoped data that transits processes and +// APIs, not for passing optional parameters to functions. +func WithValue(parent Context, key interface{}, val interface{}) Context { + return context.WithValue(parent, key, val) +} diff --git a/vendor/golang.org/x/net/context/pre_go17.go b/vendor/golang.org/x/net/context/pre_go17.go new file mode 100644 index 0000000..5a30aca --- /dev/null +++ b/vendor/golang.org/x/net/context/pre_go17.go @@ -0,0 +1,300 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build !go1.7 + +package context + +import ( + "errors" + "fmt" + "sync" + "time" +) + +// An emptyCtx is never canceled, has no values, and has no deadline. It is not +// struct{}, since vars of this type must have distinct addresses. +type emptyCtx int + +func (*emptyCtx) Deadline() (deadline time.Time, ok bool) { + return +} + +func (*emptyCtx) Done() <-chan struct{} { + return nil +} + +func (*emptyCtx) Err() error { + return nil +} + +func (*emptyCtx) Value(key interface{}) interface{} { + return nil +} + +func (e *emptyCtx) String() string { + switch e { + case background: + return "context.Background" + case todo: + return "context.TODO" + } + return "unknown empty Context" +} + +var ( + background = new(emptyCtx) + todo = new(emptyCtx) +) + +// Canceled is the error returned by Context.Err when the context is canceled. +var Canceled = errors.New("context canceled") + +// DeadlineExceeded is the error returned by Context.Err when the context's +// deadline passes. +var DeadlineExceeded = errors.New("context deadline exceeded") + +// WithCancel returns a copy of parent with a new Done channel. The returned +// context's Done channel is closed when the returned cancel function is called +// or when the parent context's Done channel is closed, whichever happens first. +// +// Canceling this context releases resources associated with it, so code should +// call cancel as soon as the operations running in this Context complete. +func WithCancel(parent Context) (ctx Context, cancel CancelFunc) { + c := newCancelCtx(parent) + propagateCancel(parent, c) + return c, func() { c.cancel(true, Canceled) } +} + +// newCancelCtx returns an initialized cancelCtx. +func newCancelCtx(parent Context) *cancelCtx { + return &cancelCtx{ + Context: parent, + done: make(chan struct{}), + } +} + +// propagateCancel arranges for child to be canceled when parent is. +func propagateCancel(parent Context, child canceler) { + if parent.Done() == nil { + return // parent is never canceled + } + if p, ok := parentCancelCtx(parent); ok { + p.mu.Lock() + if p.err != nil { + // parent has already been canceled + child.cancel(false, p.err) + } else { + if p.children == nil { + p.children = make(map[canceler]bool) + } + p.children[child] = true + } + p.mu.Unlock() + } else { + go func() { + select { + case <-parent.Done(): + child.cancel(false, parent.Err()) + case <-child.Done(): + } + }() + } +} + +// parentCancelCtx follows a chain of parent references until it finds a +// *cancelCtx. This function understands how each of the concrete types in this +// package represents its parent. +func parentCancelCtx(parent Context) (*cancelCtx, bool) { + for { + switch c := parent.(type) { + case *cancelCtx: + return c, true + case *timerCtx: + return c.cancelCtx, true + case *valueCtx: + parent = c.Context + default: + return nil, false + } + } +} + +// removeChild removes a context from its parent. +func removeChild(parent Context, child canceler) { + p, ok := parentCancelCtx(parent) + if !ok { + return + } + p.mu.Lock() + if p.children != nil { + delete(p.children, child) + } + p.mu.Unlock() +} + +// A canceler is a context type that can be canceled directly. The +// implementations are *cancelCtx and *timerCtx. +type canceler interface { + cancel(removeFromParent bool, err error) + Done() <-chan struct{} +} + +// A cancelCtx can be canceled. When canceled, it also cancels any children +// that implement canceler. +type cancelCtx struct { + Context + + done chan struct{} // closed by the first cancel call. + + mu sync.Mutex + children map[canceler]bool // set to nil by the first cancel call + err error // set to non-nil by the first cancel call +} + +func (c *cancelCtx) Done() <-chan struct{} { + return c.done +} + +func (c *cancelCtx) Err() error { + c.mu.Lock() + defer c.mu.Unlock() + return c.err +} + +func (c *cancelCtx) String() string { + return fmt.Sprintf("%v.WithCancel", c.Context) +} + +// cancel closes c.done, cancels each of c's children, and, if +// removeFromParent is true, removes c from its parent's children. +func (c *cancelCtx) cancel(removeFromParent bool, err error) { + if err == nil { + panic("context: internal error: missing cancel error") + } + c.mu.Lock() + if c.err != nil { + c.mu.Unlock() + return // already canceled + } + c.err = err + close(c.done) + for child := range c.children { + // NOTE: acquiring the child's lock while holding parent's lock. + child.cancel(false, err) + } + c.children = nil + c.mu.Unlock() + + if removeFromParent { + removeChild(c.Context, c) + } +} + +// WithDeadline returns a copy of the parent context with the deadline adjusted +// to be no later than d. If the parent's deadline is already earlier than d, +// WithDeadline(parent, d) is semantically equivalent to parent. The returned +// context's Done channel is closed when the deadline expires, when the returned +// cancel function is called, or when the parent context's Done channel is +// closed, whichever happens first. +// +// Canceling this context releases resources associated with it, so code should +// call cancel as soon as the operations running in this Context complete. +func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) { + if cur, ok := parent.Deadline(); ok && cur.Before(deadline) { + // The current deadline is already sooner than the new one. + return WithCancel(parent) + } + c := &timerCtx{ + cancelCtx: newCancelCtx(parent), + deadline: deadline, + } + propagateCancel(parent, c) + d := deadline.Sub(time.Now()) + if d <= 0 { + c.cancel(true, DeadlineExceeded) // deadline has already passed + return c, func() { c.cancel(true, Canceled) } + } + c.mu.Lock() + defer c.mu.Unlock() + if c.err == nil { + c.timer = time.AfterFunc(d, func() { + c.cancel(true, DeadlineExceeded) + }) + } + return c, func() { c.cancel(true, Canceled) } +} + +// A timerCtx carries a timer and a deadline. It embeds a cancelCtx to +// implement Done and Err. It implements cancel by stopping its timer then +// delegating to cancelCtx.cancel. +type timerCtx struct { + *cancelCtx + timer *time.Timer // Under cancelCtx.mu. + + deadline time.Time +} + +func (c *timerCtx) Deadline() (deadline time.Time, ok bool) { + return c.deadline, true +} + +func (c *timerCtx) String() string { + return fmt.Sprintf("%v.WithDeadline(%s [%s])", c.cancelCtx.Context, c.deadline, c.deadline.Sub(time.Now())) +} + +func (c *timerCtx) cancel(removeFromParent bool, err error) { + c.cancelCtx.cancel(false, err) + if removeFromParent { + // Remove this timerCtx from its parent cancelCtx's children. + removeChild(c.cancelCtx.Context, c) + } + c.mu.Lock() + if c.timer != nil { + c.timer.Stop() + c.timer = nil + } + c.mu.Unlock() +} + +// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)). +// +// Canceling this context releases resources associated with it, so code should +// call cancel as soon as the operations running in this Context complete: +// +// func slowOperationWithTimeout(ctx context.Context) (Result, error) { +// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond) +// defer cancel() // releases resources if slowOperation completes before timeout elapses +// return slowOperation(ctx) +// } +func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) { + return WithDeadline(parent, time.Now().Add(timeout)) +} + +// WithValue returns a copy of parent in which the value associated with key is +// val. +// +// Use context Values only for request-scoped data that transits processes and +// APIs, not for passing optional parameters to functions. +func WithValue(parent Context, key interface{}, val interface{}) Context { + return &valueCtx{parent, key, val} +} + +// A valueCtx carries a key-value pair. It implements Value for that key and +// delegates all other calls to the embedded Context. +type valueCtx struct { + Context + key, val interface{} +} + +func (c *valueCtx) String() string { + return fmt.Sprintf("%v.WithValue(%#v, %#v)", c.Context, c.key, c.val) +} + +func (c *valueCtx) Value(key interface{}) interface{} { + if c.key == key { + return c.val + } + return c.Context.Value(key) +} diff --git a/vendor/golang.org/x/oauth2/AUTHORS b/vendor/golang.org/x/oauth2/AUTHORS new file mode 100644 index 0000000..15167cd --- /dev/null +++ b/vendor/golang.org/x/oauth2/AUTHORS @@ -0,0 +1,3 @@ +# This source code refers to The Go Authors for copyright purposes. +# The master list of authors is in the main Go distribution, +# visible at http://tip.golang.org/AUTHORS. diff --git a/vendor/golang.org/x/oauth2/CONTRIBUTING.md b/vendor/golang.org/x/oauth2/CONTRIBUTING.md new file mode 100644 index 0000000..46aa2b1 --- /dev/null +++ b/vendor/golang.org/x/oauth2/CONTRIBUTING.md @@ -0,0 +1,31 @@ +# Contributing to Go + +Go is an open source project. + +It is the work of hundreds of contributors. We appreciate your help! + + +## Filing issues + +When [filing an issue](https://github.com/golang/oauth2/issues), make sure to answer these five questions: + +1. What version of Go are you using (`go version`)? +2. What operating system and processor architecture are you using? +3. What did you do? +4. What did you expect to see? +5. What did you see instead? + +General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker. +The gophers there will answer or ask you to file an issue if you've tripped over a bug. + +## Contributing code + +Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html) +before sending patches. + +**We do not accept GitHub pull requests** +(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review). + +Unless otherwise noted, the Go source files are distributed under +the BSD-style license found in the LICENSE file. + diff --git a/vendor/golang.org/x/oauth2/CONTRIBUTORS b/vendor/golang.org/x/oauth2/CONTRIBUTORS new file mode 100644 index 0000000..1c4577e --- /dev/null +++ b/vendor/golang.org/x/oauth2/CONTRIBUTORS @@ -0,0 +1,3 @@ +# This source code was written by the Go contributors. +# The master list of contributors is in the main Go distribution, +# visible at http://tip.golang.org/CONTRIBUTORS. diff --git a/vendor/golang.org/x/oauth2/LICENSE b/vendor/golang.org/x/oauth2/LICENSE new file mode 100644 index 0000000..d02f24f --- /dev/null +++ b/vendor/golang.org/x/oauth2/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2009 The oauth2 Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/golang.org/x/oauth2/README.md b/vendor/golang.org/x/oauth2/README.md new file mode 100644 index 0000000..0d51417 --- /dev/null +++ b/vendor/golang.org/x/oauth2/README.md @@ -0,0 +1,64 @@ +# OAuth2 for Go + +[![Build Status](https://travis-ci.org/golang/oauth2.svg?branch=master)](https://travis-ci.org/golang/oauth2) + +oauth2 package contains a client implementation for OAuth 2.0 spec. + +## Installation + +~~~~ +go get golang.org/x/oauth2 +~~~~ + +See godoc for further documentation and examples. + +* [godoc.org/golang.org/x/oauth2](http://godoc.org/golang.org/x/oauth2) +* [godoc.org/golang.org/x/oauth2/google](http://godoc.org/golang.org/x/oauth2/google) + + +## App Engine + +In change 96e89be (March 2015) we removed the `oauth2.Context2` type in favor +of the [`context.Context`](https://golang.org/x/net/context#Context) type from +the `golang.org/x/net/context` package + +This means its no longer possible to use the "Classic App Engine" +`appengine.Context` type with the `oauth2` package. (You're using +Classic App Engine if you import the package `"appengine"`.) + +To work around this, you may use the new `"google.golang.org/appengine"` +package. This package has almost the same API as the `"appengine"` package, +but it can be fetched with `go get` and used on "Managed VMs" and well as +Classic App Engine. + +See the [new `appengine` package's readme](https://github.com/golang/appengine#updating-a-go-app-engine-app) +for information on updating your app. + +If you don't want to update your entire app to use the new App Engine packages, +you may use both sets of packages in parallel, using only the new packages +with the `oauth2` package. + + import ( + "golang.org/x/net/context" + "golang.org/x/oauth2" + "golang.org/x/oauth2/google" + newappengine "google.golang.org/appengine" + newurlfetch "google.golang.org/appengine/urlfetch" + + "appengine" + ) + + func handler(w http.ResponseWriter, r *http.Request) { + var c appengine.Context = appengine.NewContext(r) + c.Infof("Logging a message with the old package") + + var ctx context.Context = newappengine.NewContext(r) + client := &http.Client{ + Transport: &oauth2.Transport{ + Source: google.AppEngineTokenSource(ctx, "scope"), + Base: &newurlfetch.Transport{Context: ctx}, + }, + } + client.Get("...") + } + diff --git a/vendor/golang.org/x/oauth2/client_appengine.go b/vendor/golang.org/x/oauth2/client_appengine.go new file mode 100644 index 0000000..8962c49 --- /dev/null +++ b/vendor/golang.org/x/oauth2/client_appengine.go @@ -0,0 +1,25 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build appengine + +// App Engine hooks. + +package oauth2 + +import ( + "net/http" + + "golang.org/x/net/context" + "golang.org/x/oauth2/internal" + "google.golang.org/appengine/urlfetch" +) + +func init() { + internal.RegisterContextClientFunc(contextClientAppEngine) +} + +func contextClientAppEngine(ctx context.Context) (*http.Client, error) { + return urlfetch.Client(ctx), nil +} diff --git a/vendor/golang.org/x/oauth2/internal/oauth2.go b/vendor/golang.org/x/oauth2/internal/oauth2.go new file mode 100644 index 0000000..fbe1028 --- /dev/null +++ b/vendor/golang.org/x/oauth2/internal/oauth2.go @@ -0,0 +1,76 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package internal contains support packages for oauth2 package. +package internal + +import ( + "bufio" + "crypto/rsa" + "crypto/x509" + "encoding/pem" + "errors" + "fmt" + "io" + "strings" +) + +// ParseKey converts the binary contents of a private key file +// to an *rsa.PrivateKey. It detects whether the private key is in a +// PEM container or not. If so, it extracts the the private key +// from PEM container before conversion. It only supports PEM +// containers with no passphrase. +func ParseKey(key []byte) (*rsa.PrivateKey, error) { + block, _ := pem.Decode(key) + if block != nil { + key = block.Bytes + } + parsedKey, err := x509.ParsePKCS8PrivateKey(key) + if err != nil { + parsedKey, err = x509.ParsePKCS1PrivateKey(key) + if err != nil { + return nil, fmt.Errorf("private key should be a PEM or plain PKSC1 or PKCS8; parse error: %v", err) + } + } + parsed, ok := parsedKey.(*rsa.PrivateKey) + if !ok { + return nil, errors.New("private key is invalid") + } + return parsed, nil +} + +func ParseINI(ini io.Reader) (map[string]map[string]string, error) { + result := map[string]map[string]string{ + "": map[string]string{}, // root section + } + scanner := bufio.NewScanner(ini) + currentSection := "" + for scanner.Scan() { + line := strings.TrimSpace(scanner.Text()) + if strings.HasPrefix(line, ";") { + // comment. + continue + } + if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") { + currentSection = strings.TrimSpace(line[1 : len(line)-1]) + result[currentSection] = map[string]string{} + continue + } + parts := strings.SplitN(line, "=", 2) + if len(parts) == 2 && parts[0] != "" { + result[currentSection][strings.TrimSpace(parts[0])] = strings.TrimSpace(parts[1]) + } + } + if err := scanner.Err(); err != nil { + return nil, fmt.Errorf("error scanning ini: %v", err) + } + return result, nil +} + +func CondVal(v string) []string { + if v == "" { + return nil + } + return []string{v} +} diff --git a/vendor/golang.org/x/oauth2/internal/token.go b/vendor/golang.org/x/oauth2/internal/token.go new file mode 100644 index 0000000..a6ed3cc --- /dev/null +++ b/vendor/golang.org/x/oauth2/internal/token.go @@ -0,0 +1,225 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package internal contains support packages for oauth2 package. +package internal + +import ( + "encoding/json" + "fmt" + "io" + "io/ioutil" + "mime" + "net/http" + "net/url" + "strconv" + "strings" + "time" + + "golang.org/x/net/context" +) + +// Token represents the crendentials used to authorize +// the requests to access protected resources on the OAuth 2.0 +// provider's backend. +// +// This type is a mirror of oauth2.Token and exists to break +// an otherwise-circular dependency. Other internal packages +// should convert this Token into an oauth2.Token before use. +type Token struct { + // AccessToken is the token that authorizes and authenticates + // the requests. + AccessToken string + + // TokenType is the type of token. + // The Type method returns either this or "Bearer", the default. + TokenType string + + // RefreshToken is a token that's used by the application + // (as opposed to the user) to refresh the access token + // if it expires. + RefreshToken string + + // Expiry is the optional expiration time of the access token. + // + // If zero, TokenSource implementations will reuse the same + // token forever and RefreshToken or equivalent + // mechanisms for that TokenSource will not be used. + Expiry time.Time + + // Raw optionally contains extra metadata from the server + // when updating a token. + Raw interface{} +} + +// tokenJSON is the struct representing the HTTP response from OAuth2 +// providers returning a token in JSON form. +type tokenJSON struct { + AccessToken string `json:"access_token"` + TokenType string `json:"token_type"` + RefreshToken string `json:"refresh_token"` + ExpiresIn expirationTime `json:"expires_in"` // at least PayPal returns string, while most return number + Expires expirationTime `json:"expires"` // broken Facebook spelling of expires_in +} + +func (e *tokenJSON) expiry() (t time.Time) { + if v := e.ExpiresIn; v != 0 { + return time.Now().Add(time.Duration(v) * time.Second) + } + if v := e.Expires; v != 0 { + return time.Now().Add(time.Duration(v) * time.Second) + } + return +} + +type expirationTime int32 + +func (e *expirationTime) UnmarshalJSON(b []byte) error { + var n json.Number + err := json.Unmarshal(b, &n) + if err != nil { + return err + } + i, err := n.Int64() + if err != nil { + return err + } + *e = expirationTime(i) + return nil +} + +var brokenAuthHeaderProviders = []string{ + "https://accounts.google.com/", + "https://api.dropbox.com/", + "https://api.dropboxapi.com/", + "https://api.instagram.com/", + "https://api.netatmo.net/", + "https://api.odnoklassniki.ru/", + "https://api.pushbullet.com/", + "https://api.soundcloud.com/", + "https://api.twitch.tv/", + "https://app.box.com/", + "https://connect.stripe.com/", + "https://login.microsoftonline.com/", + "https://login.salesforce.com/", + "https://oauth.sandbox.trainingpeaks.com/", + "https://oauth.trainingpeaks.com/", + "https://oauth.vk.com/", + "https://openapi.baidu.com/", + "https://slack.com/", + "https://test-sandbox.auth.corp.google.com", + "https://test.salesforce.com/", + "https://user.gini.net/", + "https://www.douban.com/", + "https://www.googleapis.com/", + "https://www.linkedin.com/", + "https://www.strava.com/oauth/", + "https://www.wunderlist.com/oauth/", + "https://api.patreon.com/", +} + +func RegisterBrokenAuthHeaderProvider(tokenURL string) { + brokenAuthHeaderProviders = append(brokenAuthHeaderProviders, tokenURL) +} + +// providerAuthHeaderWorks reports whether the OAuth2 server identified by the tokenURL +// implements the OAuth2 spec correctly +// See https://code.google.com/p/goauth2/issues/detail?id=31 for background. +// In summary: +// - Reddit only accepts client secret in the Authorization header +// - Dropbox accepts either it in URL param or Auth header, but not both. +// - Google only accepts URL param (not spec compliant?), not Auth header +// - Stripe only accepts client secret in Auth header with Bearer method, not Basic +func providerAuthHeaderWorks(tokenURL string) bool { + for _, s := range brokenAuthHeaderProviders { + if strings.HasPrefix(tokenURL, s) { + // Some sites fail to implement the OAuth2 spec fully. + return false + } + } + + // Assume the provider implements the spec properly + // otherwise. We can add more exceptions as they're + // discovered. We will _not_ be adding configurable hooks + // to this package to let users select server bugs. + return true +} + +func RetrieveToken(ctx context.Context, ClientID, ClientSecret, TokenURL string, v url.Values) (*Token, error) { + hc, err := ContextClient(ctx) + if err != nil { + return nil, err + } + v.Set("client_id", ClientID) + bustedAuth := !providerAuthHeaderWorks(TokenURL) + if bustedAuth && ClientSecret != "" { + v.Set("client_secret", ClientSecret) + } + req, err := http.NewRequest("POST", TokenURL, strings.NewReader(v.Encode())) + if err != nil { + return nil, err + } + req.Header.Set("Content-Type", "application/x-www-form-urlencoded") + if !bustedAuth { + req.SetBasicAuth(ClientID, ClientSecret) + } + r, err := hc.Do(req) + if err != nil { + return nil, err + } + defer r.Body.Close() + body, err := ioutil.ReadAll(io.LimitReader(r.Body, 1<<20)) + if err != nil { + return nil, fmt.Errorf("oauth2: cannot fetch token: %v", err) + } + if code := r.StatusCode; code < 200 || code > 299 { + return nil, fmt.Errorf("oauth2: cannot fetch token: %v\nResponse: %s", r.Status, body) + } + + var token *Token + content, _, _ := mime.ParseMediaType(r.Header.Get("Content-Type")) + switch content { + case "application/x-www-form-urlencoded", "text/plain": + vals, err := url.ParseQuery(string(body)) + if err != nil { + return nil, err + } + token = &Token{ + AccessToken: vals.Get("access_token"), + TokenType: vals.Get("token_type"), + RefreshToken: vals.Get("refresh_token"), + Raw: vals, + } + e := vals.Get("expires_in") + if e == "" { + // TODO(jbd): Facebook's OAuth2 implementation is broken and + // returns expires_in field in expires. Remove the fallback to expires, + // when Facebook fixes their implementation. + e = vals.Get("expires") + } + expires, _ := strconv.Atoi(e) + if expires != 0 { + token.Expiry = time.Now().Add(time.Duration(expires) * time.Second) + } + default: + var tj tokenJSON + if err = json.Unmarshal(body, &tj); err != nil { + return nil, err + } + token = &Token{ + AccessToken: tj.AccessToken, + TokenType: tj.TokenType, + RefreshToken: tj.RefreshToken, + Expiry: tj.expiry(), + Raw: make(map[string]interface{}), + } + json.Unmarshal(body, &token.Raw) // no error checks for optional fields + } + // Don't overwrite `RefreshToken` with an empty value + // if this was a token refreshing request. + if token.RefreshToken == "" { + token.RefreshToken = v.Get("refresh_token") + } + return token, nil +} diff --git a/vendor/golang.org/x/oauth2/internal/transport.go b/vendor/golang.org/x/oauth2/internal/transport.go new file mode 100644 index 0000000..f1f173e --- /dev/null +++ b/vendor/golang.org/x/oauth2/internal/transport.go @@ -0,0 +1,69 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package internal contains support packages for oauth2 package. +package internal + +import ( + "net/http" + + "golang.org/x/net/context" +) + +// HTTPClient is the context key to use with golang.org/x/net/context's +// WithValue function to associate an *http.Client value with a context. +var HTTPClient ContextKey + +// ContextKey is just an empty struct. It exists so HTTPClient can be +// an immutable public variable with a unique type. It's immutable +// because nobody else can create a ContextKey, being unexported. +type ContextKey struct{} + +// ContextClientFunc is a func which tries to return an *http.Client +// given a Context value. If it returns an error, the search stops +// with that error. If it returns (nil, nil), the search continues +// down the list of registered funcs. +type ContextClientFunc func(context.Context) (*http.Client, error) + +var contextClientFuncs []ContextClientFunc + +func RegisterContextClientFunc(fn ContextClientFunc) { + contextClientFuncs = append(contextClientFuncs, fn) +} + +func ContextClient(ctx context.Context) (*http.Client, error) { + if ctx != nil { + if hc, ok := ctx.Value(HTTPClient).(*http.Client); ok { + return hc, nil + } + } + for _, fn := range contextClientFuncs { + c, err := fn(ctx) + if err != nil { + return nil, err + } + if c != nil { + return c, nil + } + } + return http.DefaultClient, nil +} + +func ContextTransport(ctx context.Context) http.RoundTripper { + hc, err := ContextClient(ctx) + // This is a rare error case (somebody using nil on App Engine). + if err != nil { + return ErrorTransport{err} + } + return hc.Transport +} + +// ErrorTransport returns the specified error on RoundTrip. +// This RoundTripper should be used in rare error cases where +// error handling can be postponed to response handling time. +type ErrorTransport struct{ Err error } + +func (t ErrorTransport) RoundTrip(*http.Request) (*http.Response, error) { + return nil, t.Err +} diff --git a/vendor/golang.org/x/oauth2/oauth2.go b/vendor/golang.org/x/oauth2/oauth2.go new file mode 100644 index 0000000..a682896 --- /dev/null +++ b/vendor/golang.org/x/oauth2/oauth2.go @@ -0,0 +1,337 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package oauth2 provides support for making +// OAuth2 authorized and authenticated HTTP requests. +// It can additionally grant authorization with Bearer JWT. +package oauth2 // import "golang.org/x/oauth2" + +import ( + "bytes" + "errors" + "net/http" + "net/url" + "strings" + "sync" + + "golang.org/x/net/context" + "golang.org/x/oauth2/internal" +) + +// NoContext is the default context you should supply if not using +// your own context.Context (see https://golang.org/x/net/context). +var NoContext = context.TODO() + +// RegisterBrokenAuthHeaderProvider registers an OAuth2 server +// identified by the tokenURL prefix as an OAuth2 implementation +// which doesn't support the HTTP Basic authentication +// scheme to authenticate with the authorization server. +// Once a server is registered, credentials (client_id and client_secret) +// will be passed as query parameters rather than being present +// in the Authorization header. +// See https://code.google.com/p/goauth2/issues/detail?id=31 for background. +func RegisterBrokenAuthHeaderProvider(tokenURL string) { + internal.RegisterBrokenAuthHeaderProvider(tokenURL) +} + +// Config describes a typical 3-legged OAuth2 flow, with both the +// client application information and the server's endpoint URLs. +type Config struct { + // ClientID is the application's ID. + ClientID string + + // ClientSecret is the application's secret. + ClientSecret string + + // Endpoint contains the resource server's token endpoint + // URLs. These are constants specific to each server and are + // often available via site-specific packages, such as + // google.Endpoint or github.Endpoint. + Endpoint Endpoint + + // RedirectURL is the URL to redirect users going through + // the OAuth flow, after the resource owner's URLs. + RedirectURL string + + // Scope specifies optional requested permissions. + Scopes []string +} + +// A TokenSource is anything that can return a token. +type TokenSource interface { + // Token returns a token or an error. + // Token must be safe for concurrent use by multiple goroutines. + // The returned Token must not be modified. + Token() (*Token, error) +} + +// Endpoint contains the OAuth 2.0 provider's authorization and token +// endpoint URLs. +type Endpoint struct { + AuthURL string + TokenURL string +} + +var ( + // AccessTypeOnline and AccessTypeOffline are options passed + // to the Options.AuthCodeURL method. They modify the + // "access_type" field that gets sent in the URL returned by + // AuthCodeURL. + // + // Online is the default if neither is specified. If your + // application needs to refresh access tokens when the user + // is not present at the browser, then use offline. This will + // result in your application obtaining a refresh token the + // first time your application exchanges an authorization + // code for a user. + AccessTypeOnline AuthCodeOption = SetAuthURLParam("access_type", "online") + AccessTypeOffline AuthCodeOption = SetAuthURLParam("access_type", "offline") + + // ApprovalForce forces the users to view the consent dialog + // and confirm the permissions request at the URL returned + // from AuthCodeURL, even if they've already done so. + ApprovalForce AuthCodeOption = SetAuthURLParam("approval_prompt", "force") +) + +// An AuthCodeOption is passed to Config.AuthCodeURL. +type AuthCodeOption interface { + setValue(url.Values) +} + +type setParam struct{ k, v string } + +func (p setParam) setValue(m url.Values) { m.Set(p.k, p.v) } + +// SetAuthURLParam builds an AuthCodeOption which passes key/value parameters +// to a provider's authorization endpoint. +func SetAuthURLParam(key, value string) AuthCodeOption { + return setParam{key, value} +} + +// AuthCodeURL returns a URL to OAuth 2.0 provider's consent page +// that asks for permissions for the required scopes explicitly. +// +// State is a token to protect the user from CSRF attacks. You must +// always provide a non-zero string and validate that it matches the +// the state query parameter on your redirect callback. +// See http://tools.ietf.org/html/rfc6749#section-10.12 for more info. +// +// Opts may include AccessTypeOnline or AccessTypeOffline, as well +// as ApprovalForce. +func (c *Config) AuthCodeURL(state string, opts ...AuthCodeOption) string { + var buf bytes.Buffer + buf.WriteString(c.Endpoint.AuthURL) + v := url.Values{ + "response_type": {"code"}, + "client_id": {c.ClientID}, + "redirect_uri": internal.CondVal(c.RedirectURL), + "scope": internal.CondVal(strings.Join(c.Scopes, " ")), + "state": internal.CondVal(state), + } + for _, opt := range opts { + opt.setValue(v) + } + if strings.Contains(c.Endpoint.AuthURL, "?") { + buf.WriteByte('&') + } else { + buf.WriteByte('?') + } + buf.WriteString(v.Encode()) + return buf.String() +} + +// PasswordCredentialsToken converts a resource owner username and password +// pair into a token. +// +// Per the RFC, this grant type should only be used "when there is a high +// degree of trust between the resource owner and the client (e.g., the client +// is part of the device operating system or a highly privileged application), +// and when other authorization grant types are not available." +// See https://tools.ietf.org/html/rfc6749#section-4.3 for more info. +// +// The HTTP client to use is derived from the context. +// If nil, http.DefaultClient is used. +func (c *Config) PasswordCredentialsToken(ctx context.Context, username, password string) (*Token, error) { + return retrieveToken(ctx, c, url.Values{ + "grant_type": {"password"}, + "username": {username}, + "password": {password}, + "scope": internal.CondVal(strings.Join(c.Scopes, " ")), + }) +} + +// Exchange converts an authorization code into a token. +// +// It is used after a resource provider redirects the user back +// to the Redirect URI (the URL obtained from AuthCodeURL). +// +// The HTTP client to use is derived from the context. +// If a client is not provided via the context, http.DefaultClient is used. +// +// The code will be in the *http.Request.FormValue("code"). Before +// calling Exchange, be sure to validate FormValue("state"). +func (c *Config) Exchange(ctx context.Context, code string) (*Token, error) { + return retrieveToken(ctx, c, url.Values{ + "grant_type": {"authorization_code"}, + "code": {code}, + "redirect_uri": internal.CondVal(c.RedirectURL), + "scope": internal.CondVal(strings.Join(c.Scopes, " ")), + }) +} + +// Client returns an HTTP client using the provided token. +// The token will auto-refresh as necessary. The underlying +// HTTP transport will be obtained using the provided context. +// The returned client and its Transport should not be modified. +func (c *Config) Client(ctx context.Context, t *Token) *http.Client { + return NewClient(ctx, c.TokenSource(ctx, t)) +} + +// TokenSource returns a TokenSource that returns t until t expires, +// automatically refreshing it as necessary using the provided context. +// +// Most users will use Config.Client instead. +func (c *Config) TokenSource(ctx context.Context, t *Token) TokenSource { + tkr := &tokenRefresher{ + ctx: ctx, + conf: c, + } + if t != nil { + tkr.refreshToken = t.RefreshToken + } + return &reuseTokenSource{ + t: t, + new: tkr, + } +} + +// tokenRefresher is a TokenSource that makes "grant_type"=="refresh_token" +// HTTP requests to renew a token using a RefreshToken. +type tokenRefresher struct { + ctx context.Context // used to get HTTP requests + conf *Config + refreshToken string +} + +// WARNING: Token is not safe for concurrent access, as it +// updates the tokenRefresher's refreshToken field. +// Within this package, it is used by reuseTokenSource which +// synchronizes calls to this method with its own mutex. +func (tf *tokenRefresher) Token() (*Token, error) { + if tf.refreshToken == "" { + return nil, errors.New("oauth2: token expired and refresh token is not set") + } + + tk, err := retrieveToken(tf.ctx, tf.conf, url.Values{ + "grant_type": {"refresh_token"}, + "refresh_token": {tf.refreshToken}, + }) + + if err != nil { + return nil, err + } + if tf.refreshToken != tk.RefreshToken { + tf.refreshToken = tk.RefreshToken + } + return tk, err +} + +// reuseTokenSource is a TokenSource that holds a single token in memory +// and validates its expiry before each call to retrieve it with +// Token. If it's expired, it will be auto-refreshed using the +// new TokenSource. +type reuseTokenSource struct { + new TokenSource // called when t is expired. + + mu sync.Mutex // guards t + t *Token +} + +// Token returns the current token if it's still valid, else will +// refresh the current token (using r.Context for HTTP client +// information) and return the new one. +func (s *reuseTokenSource) Token() (*Token, error) { + s.mu.Lock() + defer s.mu.Unlock() + if s.t.Valid() { + return s.t, nil + } + t, err := s.new.Token() + if err != nil { + return nil, err + } + s.t = t + return t, nil +} + +// StaticTokenSource returns a TokenSource that always returns the same token. +// Because the provided token t is never refreshed, StaticTokenSource is only +// useful for tokens that never expire. +func StaticTokenSource(t *Token) TokenSource { + return staticTokenSource{t} +} + +// staticTokenSource is a TokenSource that always returns the same Token. +type staticTokenSource struct { + t *Token +} + +func (s staticTokenSource) Token() (*Token, error) { + return s.t, nil +} + +// HTTPClient is the context key to use with golang.org/x/net/context's +// WithValue function to associate an *http.Client value with a context. +var HTTPClient internal.ContextKey + +// NewClient creates an *http.Client from a Context and TokenSource. +// The returned client is not valid beyond the lifetime of the context. +// +// As a special case, if src is nil, a non-OAuth2 client is returned +// using the provided context. This exists to support related OAuth2 +// packages. +func NewClient(ctx context.Context, src TokenSource) *http.Client { + if src == nil { + c, err := internal.ContextClient(ctx) + if err != nil { + return &http.Client{Transport: internal.ErrorTransport{err}} + } + return c + } + return &http.Client{ + Transport: &Transport{ + Base: internal.ContextTransport(ctx), + Source: ReuseTokenSource(nil, src), + }, + } +} + +// ReuseTokenSource returns a TokenSource which repeatedly returns the +// same token as long as it's valid, starting with t. +// When its cached token is invalid, a new token is obtained from src. +// +// ReuseTokenSource is typically used to reuse tokens from a cache +// (such as a file on disk) between runs of a program, rather than +// obtaining new tokens unnecessarily. +// +// The initial token t may be nil, in which case the TokenSource is +// wrapped in a caching version if it isn't one already. This also +// means it's always safe to wrap ReuseTokenSource around any other +// TokenSource without adverse effects. +func ReuseTokenSource(t *Token, src TokenSource) TokenSource { + // Don't wrap a reuseTokenSource in itself. That would work, + // but cause an unnecessary number of mutex operations. + // Just build the equivalent one. + if rt, ok := src.(*reuseTokenSource); ok { + if t == nil { + // Just use it directly. + return rt + } + src = rt.new + } + return &reuseTokenSource{ + t: t, + new: src, + } +} diff --git a/vendor/golang.org/x/oauth2/token.go b/vendor/golang.org/x/oauth2/token.go new file mode 100644 index 0000000..7a3167f --- /dev/null +++ b/vendor/golang.org/x/oauth2/token.go @@ -0,0 +1,158 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package oauth2 + +import ( + "net/http" + "net/url" + "strconv" + "strings" + "time" + + "golang.org/x/net/context" + "golang.org/x/oauth2/internal" +) + +// expiryDelta determines how earlier a token should be considered +// expired than its actual expiration time. It is used to avoid late +// expirations due to client-server time mismatches. +const expiryDelta = 10 * time.Second + +// Token represents the crendentials used to authorize +// the requests to access protected resources on the OAuth 2.0 +// provider's backend. +// +// Most users of this package should not access fields of Token +// directly. They're exported mostly for use by related packages +// implementing derivative OAuth2 flows. +type Token struct { + // AccessToken is the token that authorizes and authenticates + // the requests. + AccessToken string `json:"access_token"` + + // TokenType is the type of token. + // The Type method returns either this or "Bearer", the default. + TokenType string `json:"token_type,omitempty"` + + // RefreshToken is a token that's used by the application + // (as opposed to the user) to refresh the access token + // if it expires. + RefreshToken string `json:"refresh_token,omitempty"` + + // Expiry is the optional expiration time of the access token. + // + // If zero, TokenSource implementations will reuse the same + // token forever and RefreshToken or equivalent + // mechanisms for that TokenSource will not be used. + Expiry time.Time `json:"expiry,omitempty"` + + // raw optionally contains extra metadata from the server + // when updating a token. + raw interface{} +} + +// Type returns t.TokenType if non-empty, else "Bearer". +func (t *Token) Type() string { + if strings.EqualFold(t.TokenType, "bearer") { + return "Bearer" + } + if strings.EqualFold(t.TokenType, "mac") { + return "MAC" + } + if strings.EqualFold(t.TokenType, "basic") { + return "Basic" + } + if t.TokenType != "" { + return t.TokenType + } + return "Bearer" +} + +// SetAuthHeader sets the Authorization header to r using the access +// token in t. +// +// This method is unnecessary when using Transport or an HTTP Client +// returned by this package. +func (t *Token) SetAuthHeader(r *http.Request) { + r.Header.Set("Authorization", t.Type()+" "+t.AccessToken) +} + +// WithExtra returns a new Token that's a clone of t, but using the +// provided raw extra map. This is only intended for use by packages +// implementing derivative OAuth2 flows. +func (t *Token) WithExtra(extra interface{}) *Token { + t2 := new(Token) + *t2 = *t + t2.raw = extra + return t2 +} + +// Extra returns an extra field. +// Extra fields are key-value pairs returned by the server as a +// part of the token retrieval response. +func (t *Token) Extra(key string) interface{} { + if raw, ok := t.raw.(map[string]interface{}); ok { + return raw[key] + } + + vals, ok := t.raw.(url.Values) + if !ok { + return nil + } + + v := vals.Get(key) + switch s := strings.TrimSpace(v); strings.Count(s, ".") { + case 0: // Contains no "."; try to parse as int + if i, err := strconv.ParseInt(s, 10, 64); err == nil { + return i + } + case 1: // Contains a single "."; try to parse as float + if f, err := strconv.ParseFloat(s, 64); err == nil { + return f + } + } + + return v +} + +// expired reports whether the token is expired. +// t must be non-nil. +func (t *Token) expired() bool { + if t.Expiry.IsZero() { + return false + } + return t.Expiry.Add(-expiryDelta).Before(time.Now()) +} + +// Valid reports whether t is non-nil, has an AccessToken, and is not expired. +func (t *Token) Valid() bool { + return t != nil && t.AccessToken != "" && !t.expired() +} + +// tokenFromInternal maps an *internal.Token struct into +// a *Token struct. +func tokenFromInternal(t *internal.Token) *Token { + if t == nil { + return nil + } + return &Token{ + AccessToken: t.AccessToken, + TokenType: t.TokenType, + RefreshToken: t.RefreshToken, + Expiry: t.Expiry, + raw: t.Raw, + } +} + +// retrieveToken takes a *Config and uses that to retrieve an *internal.Token. +// This token is then mapped from *internal.Token into an *oauth2.Token which is returned along +// with an error.. +func retrieveToken(ctx context.Context, c *Config, v url.Values) (*Token, error) { + tk, err := internal.RetrieveToken(ctx, c.ClientID, c.ClientSecret, c.Endpoint.TokenURL, v) + if err != nil { + return nil, err + } + return tokenFromInternal(tk), nil +} diff --git a/vendor/golang.org/x/oauth2/transport.go b/vendor/golang.org/x/oauth2/transport.go new file mode 100644 index 0000000..92ac7e2 --- /dev/null +++ b/vendor/golang.org/x/oauth2/transport.go @@ -0,0 +1,132 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package oauth2 + +import ( + "errors" + "io" + "net/http" + "sync" +) + +// Transport is an http.RoundTripper that makes OAuth 2.0 HTTP requests, +// wrapping a base RoundTripper and adding an Authorization header +// with a token from the supplied Sources. +// +// Transport is a low-level mechanism. Most code will use the +// higher-level Config.Client method instead. +type Transport struct { + // Source supplies the token to add to outgoing requests' + // Authorization headers. + Source TokenSource + + // Base is the base RoundTripper used to make HTTP requests. + // If nil, http.DefaultTransport is used. + Base http.RoundTripper + + mu sync.Mutex // guards modReq + modReq map[*http.Request]*http.Request // original -> modified +} + +// RoundTrip authorizes and authenticates the request with an +// access token. If no token exists or token is expired, +// tries to refresh/fetch a new token. +func (t *Transport) RoundTrip(req *http.Request) (*http.Response, error) { + if t.Source == nil { + return nil, errors.New("oauth2: Transport's Source is nil") + } + token, err := t.Source.Token() + if err != nil { + return nil, err + } + + req2 := cloneRequest(req) // per RoundTripper contract + token.SetAuthHeader(req2) + t.setModReq(req, req2) + res, err := t.base().RoundTrip(req2) + if err != nil { + t.setModReq(req, nil) + return nil, err + } + res.Body = &onEOFReader{ + rc: res.Body, + fn: func() { t.setModReq(req, nil) }, + } + return res, nil +} + +// CancelRequest cancels an in-flight request by closing its connection. +func (t *Transport) CancelRequest(req *http.Request) { + type canceler interface { + CancelRequest(*http.Request) + } + if cr, ok := t.base().(canceler); ok { + t.mu.Lock() + modReq := t.modReq[req] + delete(t.modReq, req) + t.mu.Unlock() + cr.CancelRequest(modReq) + } +} + +func (t *Transport) base() http.RoundTripper { + if t.Base != nil { + return t.Base + } + return http.DefaultTransport +} + +func (t *Transport) setModReq(orig, mod *http.Request) { + t.mu.Lock() + defer t.mu.Unlock() + if t.modReq == nil { + t.modReq = make(map[*http.Request]*http.Request) + } + if mod == nil { + delete(t.modReq, orig) + } else { + t.modReq[orig] = mod + } +} + +// cloneRequest returns a clone of the provided *http.Request. +// The clone is a shallow copy of the struct and its Header map. +func cloneRequest(r *http.Request) *http.Request { + // shallow copy of the struct + r2 := new(http.Request) + *r2 = *r + // deep copy of the Header + r2.Header = make(http.Header, len(r.Header)) + for k, s := range r.Header { + r2.Header[k] = append([]string(nil), s...) + } + return r2 +} + +type onEOFReader struct { + rc io.ReadCloser + fn func() +} + +func (r *onEOFReader) Read(p []byte) (n int, err error) { + n, err = r.rc.Read(p) + if err == io.EOF { + r.runFunc() + } + return +} + +func (r *onEOFReader) Close() error { + err := r.rc.Close() + r.runFunc() + return err +} + +func (r *onEOFReader) runFunc() { + if fn := r.fn; fn != nil { + fn() + r.fn = nil + } +} diff --git a/vendor/google.golang.org/appengine/LICENSE b/vendor/google.golang.org/appengine/LICENSE new file mode 100644 index 0000000..d645695 --- /dev/null +++ b/vendor/google.golang.org/appengine/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/google.golang.org/appengine/README.md b/vendor/google.golang.org/appengine/README.md new file mode 100644 index 0000000..1efd955 --- /dev/null +++ b/vendor/google.golang.org/appengine/README.md @@ -0,0 +1,71 @@ +# Go App Engine packages + +[![Build Status](https://travis-ci.org/golang/appengine.svg)](https://travis-ci.org/golang/appengine) + +This repository supports the Go runtime on App Engine, +including both the standard App Engine and the +"App Engine flexible environment" (formerly known as "Managed VMs"). +It provides APIs for interacting with App Engine services. +Its canonical import path is `google.golang.org/appengine`. + +See https://cloud.google.com/appengine/docs/go/ +for more information. + +File issue reports and feature requests on the [Google App Engine issue +tracker](https://code.google.com/p/googleappengine/issues/entry?template=Go%20defect). + +## Directory structure +The top level directory of this repository is the `appengine` package. It +contains the +basic APIs (e.g. `appengine.NewContext`) that apply across APIs. Specific API +packages are in subdirectories (e.g. `datastore`). + +There is an `internal` subdirectory that contains service protocol buffers, +plus packages required for connectivity to make API calls. App Engine apps +should not directly import any package under `internal`. + +## Updating a Go App Engine app + +This section describes how to update an older Go App Engine app to use +these packages. A provided tool, `aefix`, can help automate steps 2 and 3 +(run `go get google.golang.org/appengine/cmd/aefix` to install it), but +read the details below since `aefix` can't perform all the changes. + +### 1. Update YAML files (App Engine flexible environment / Managed VMs only) + +The `app.yaml` file (and YAML files for modules) should have these new lines added: +``` +vm: true +``` +See https://cloud.google.com/appengine/docs/go/modules/#Go_Instance_scaling_and_class for details. + +### 2. Update import paths + +The import paths for App Engine packages are now fully qualified, based at `google.golang.org/appengine`. +You will need to update your code to use import paths starting with that; for instance, +code importing `appengine/datastore` will now need to import `google.golang.org/appengine/datastore`. + +### 3. Update code using deprecated, removed or modified APIs + +Most App Engine services are available with exactly the same API. +A few APIs were cleaned up, and some are not available yet. +This list summarises the differences: + +* `appengine.Context` has been replaced with the `Context` type from `golang.org/x/net/context`. +* Logging methods that were on `appengine.Context` are now functions in `google.golang.org/appengine/log`. +* `appengine.Timeout` has been removed. Use `context.WithTimeout` instead. +* `appengine.Datacenter` now takes a `context.Context` argument. +* `datastore.PropertyLoadSaver` has been simplified to use slices in place of channels. +* `delay.Call` now returns an error. +* `search.FieldLoadSaver` now handles document metadata. +* `urlfetch.Transport` no longer has a Deadline field; set a deadline on the + `context.Context` instead. +* `aetest` no longer declares its own Context type, and uses the standard one instead. +* `taskqueue.QueueStats` no longer takes a maxTasks argument. That argument has been + deprecated and unused for a long time. +* `appengine.BackendHostname` and `appengine.BackendInstance` were for the deprecated backends feature. + Use `appengine.ModuleHostname`and `appengine.ModuleName` instead. +* Most of `appengine/file` and parts of `appengine/blobstore` are deprecated. + Use [Google Cloud Storage](https://godoc.org/google.golang.org/cloud/storage) instead. +* `appengine/socket` is not required on App Engine flexible environment / Managed VMs. + Use the standard `net` package instead. diff --git a/vendor/google.golang.org/appengine/appengine.go b/vendor/google.golang.org/appengine/appengine.go new file mode 100644 index 0000000..aa23a7a --- /dev/null +++ b/vendor/google.golang.org/appengine/appengine.go @@ -0,0 +1,76 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// Package appengine provides basic functionality for Google App Engine. +// +// For more information on how to write Go apps for Google App Engine, see: +// https://cloud.google.com/appengine/docs/go/ +package appengine // import "google.golang.org/appengine" + +import ( + "net/http" + + "github.com/golang/protobuf/proto" + "golang.org/x/net/context" + + "google.golang.org/appengine/internal" +) + +// IsDevAppServer reports whether the App Engine app is running in the +// development App Server. +func IsDevAppServer() bool { + return internal.IsDevAppServer() +} + +// NewContext returns a context for an in-flight HTTP request. +// This function is cheap. +func NewContext(req *http.Request) context.Context { + return WithContext(context.Background(), req) +} + +// WithContext returns a copy of the parent context +// and associates it with an in-flight HTTP request. +// This function is cheap. +func WithContext(parent context.Context, req *http.Request) context.Context { + return internal.WithContext(parent, req) +} + +// TODO(dsymonds): Add a Call function here? Otherwise other packages can't access internal.Call. + +// BlobKey is a key for a blobstore blob. +// +// Conceptually, this type belongs in the blobstore package, but it lives in +// the appengine package to avoid a circular dependency: blobstore depends on +// datastore, and datastore needs to refer to the BlobKey type. +type BlobKey string + +// GeoPoint represents a location as latitude/longitude in degrees. +type GeoPoint struct { + Lat, Lng float64 +} + +// Valid returns whether a GeoPoint is within [-90, 90] latitude and [-180, 180] longitude. +func (g GeoPoint) Valid() bool { + return -90 <= g.Lat && g.Lat <= 90 && -180 <= g.Lng && g.Lng <= 180 +} + +// APICallFunc defines a function type for handling an API call. +// See WithCallOverride. +type APICallFunc func(ctx context.Context, service, method string, in, out proto.Message) error + +// WithAPICallFunc returns a copy of the parent context +// that will cause API calls to invoke f instead of their normal operation. +// +// This is intended for advanced users only. +func WithAPICallFunc(ctx context.Context, f APICallFunc) context.Context { + return internal.WithCallOverride(ctx, internal.CallOverrideFunc(f)) +} + +// APICall performs an API call. +// +// This is not intended for general use; it is exported for use in conjunction +// with WithAPICallFunc. +func APICall(ctx context.Context, service, method string, in, out proto.Message) error { + return internal.Call(ctx, service, method, in, out) +} diff --git a/vendor/google.golang.org/appengine/appengine_vm.go b/vendor/google.golang.org/appengine/appengine_vm.go new file mode 100644 index 0000000..e4399ed --- /dev/null +++ b/vendor/google.golang.org/appengine/appengine_vm.go @@ -0,0 +1,56 @@ +// Copyright 2015 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// +build !appengine + +package appengine + +import ( + "golang.org/x/net/context" + + "google.golang.org/appengine/internal" +) + +// The comment below must not be changed. +// It is used by go-app-builder to recognise that this package has +// the Main function to use in the synthetic main. +// The gophers party all night; the rabbits provide the beats. + +// Main is the principal entry point for an app running in App Engine "flexible environment". +// It installs a trivial health checker if one isn't already registered, +// and starts listening on port 8080 (overridden by the $PORT environment +// variable). +// +// See https://cloud.google.com/appengine/docs/flexible/custom-runtimes#health_check_requests +// for details on how to do your own health checking. +// +// Main never returns. +// +// Main is designed so that the app's main package looks like this: +// +// package main +// +// import ( +// "google.golang.org/appengine" +// +// _ "myapp/package0" +// _ "myapp/package1" +// ) +// +// func main() { +// appengine.Main() +// } +// +// The "myapp/packageX" packages are expected to register HTTP handlers +// in their init functions. +func Main() { + internal.Main() +} + +// BackgroundContext returns a context not associated with a request. +// This should only be used when not servicing a request. +// This only works in App Engine "flexible environment". +func BackgroundContext() context.Context { + return internal.BackgroundContext() +} diff --git a/vendor/google.golang.org/appengine/errors.go b/vendor/google.golang.org/appengine/errors.go new file mode 100644 index 0000000..16d0772 --- /dev/null +++ b/vendor/google.golang.org/appengine/errors.go @@ -0,0 +1,46 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// This file provides error functions for common API failure modes. + +package appengine + +import ( + "fmt" + + "google.golang.org/appengine/internal" +) + +// IsOverQuota reports whether err represents an API call failure +// due to insufficient available quota. +func IsOverQuota(err error) bool { + callErr, ok := err.(*internal.CallError) + return ok && callErr.Code == 4 +} + +// MultiError is returned by batch operations when there are errors with +// particular elements. Errors will be in a one-to-one correspondence with +// the input elements; successful elements will have a nil entry. +type MultiError []error + +func (m MultiError) Error() string { + s, n := "", 0 + for _, e := range m { + if e != nil { + if n == 0 { + s = e.Error() + } + n++ + } + } + switch n { + case 0: + return "(0 errors)" + case 1: + return s + case 2: + return s + " (and 1 other error)" + } + return fmt.Sprintf("%s (and %d other errors)", s, n-1) +} diff --git a/vendor/google.golang.org/appengine/identity.go b/vendor/google.golang.org/appengine/identity.go new file mode 100644 index 0000000..b8dcf8f --- /dev/null +++ b/vendor/google.golang.org/appengine/identity.go @@ -0,0 +1,142 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package appengine + +import ( + "time" + + "golang.org/x/net/context" + + "google.golang.org/appengine/internal" + pb "google.golang.org/appengine/internal/app_identity" + modpb "google.golang.org/appengine/internal/modules" +) + +// AppID returns the application ID for the current application. +// The string will be a plain application ID (e.g. "appid"), with a +// domain prefix for custom domain deployments (e.g. "example.com:appid"). +func AppID(c context.Context) string { return internal.AppID(c) } + +// DefaultVersionHostname returns the standard hostname of the default version +// of the current application (e.g. "my-app.appspot.com"). This is suitable for +// use in constructing URLs. +func DefaultVersionHostname(c context.Context) string { + return internal.DefaultVersionHostname(c) +} + +// ModuleName returns the module name of the current instance. +func ModuleName(c context.Context) string { + return internal.ModuleName(c) +} + +// ModuleHostname returns a hostname of a module instance. +// If module is the empty string, it refers to the module of the current instance. +// If version is empty, it refers to the version of the current instance if valid, +// or the default version of the module of the current instance. +// If instance is empty, ModuleHostname returns the load-balancing hostname. +func ModuleHostname(c context.Context, module, version, instance string) (string, error) { + req := &modpb.GetHostnameRequest{} + if module != "" { + req.Module = &module + } + if version != "" { + req.Version = &version + } + if instance != "" { + req.Instance = &instance + } + res := &modpb.GetHostnameResponse{} + if err := internal.Call(c, "modules", "GetHostname", req, res); err != nil { + return "", err + } + return *res.Hostname, nil +} + +// VersionID returns the version ID for the current application. +// It will be of the form "X.Y", where X is specified in app.yaml, +// and Y is a number generated when each version of the app is uploaded. +// It does not include a module name. +func VersionID(c context.Context) string { return internal.VersionID(c) } + +// InstanceID returns a mostly-unique identifier for this instance. +func InstanceID() string { return internal.InstanceID() } + +// Datacenter returns an identifier for the datacenter that the instance is running in. +func Datacenter(c context.Context) string { return internal.Datacenter(c) } + +// ServerSoftware returns the App Engine release version. +// In production, it looks like "Google App Engine/X.Y.Z". +// In the development appserver, it looks like "Development/X.Y". +func ServerSoftware() string { return internal.ServerSoftware() } + +// RequestID returns a string that uniquely identifies the request. +func RequestID(c context.Context) string { return internal.RequestID(c) } + +// AccessToken generates an OAuth2 access token for the specified scopes on +// behalf of service account of this application. This token will expire after +// the returned time. +func AccessToken(c context.Context, scopes ...string) (token string, expiry time.Time, err error) { + req := &pb.GetAccessTokenRequest{Scope: scopes} + res := &pb.GetAccessTokenResponse{} + + err = internal.Call(c, "app_identity_service", "GetAccessToken", req, res) + if err != nil { + return "", time.Time{}, err + } + return res.GetAccessToken(), time.Unix(res.GetExpirationTime(), 0), nil +} + +// Certificate represents a public certificate for the app. +type Certificate struct { + KeyName string + Data []byte // PEM-encoded X.509 certificate +} + +// PublicCertificates retrieves the public certificates for the app. +// They can be used to verify a signature returned by SignBytes. +func PublicCertificates(c context.Context) ([]Certificate, error) { + req := &pb.GetPublicCertificateForAppRequest{} + res := &pb.GetPublicCertificateForAppResponse{} + if err := internal.Call(c, "app_identity_service", "GetPublicCertificatesForApp", req, res); err != nil { + return nil, err + } + var cs []Certificate + for _, pc := range res.PublicCertificateList { + cs = append(cs, Certificate{ + KeyName: pc.GetKeyName(), + Data: []byte(pc.GetX509CertificatePem()), + }) + } + return cs, nil +} + +// ServiceAccount returns a string representing the service account name, in +// the form of an email address (typically app_id@appspot.gserviceaccount.com). +func ServiceAccount(c context.Context) (string, error) { + req := &pb.GetServiceAccountNameRequest{} + res := &pb.GetServiceAccountNameResponse{} + + err := internal.Call(c, "app_identity_service", "GetServiceAccountName", req, res) + if err != nil { + return "", err + } + return res.GetServiceAccountName(), err +} + +// SignBytes signs bytes using a private key unique to your application. +func SignBytes(c context.Context, bytes []byte) (keyName string, signature []byte, err error) { + req := &pb.SignForAppRequest{BytesToSign: bytes} + res := &pb.SignForAppResponse{} + + if err := internal.Call(c, "app_identity_service", "SignForApp", req, res); err != nil { + return "", nil, err + } + return res.GetKeyName(), res.GetSignatureBytes(), nil +} + +func init() { + internal.RegisterErrorCodeMap("app_identity_service", pb.AppIdentityServiceError_ErrorCode_name) + internal.RegisterErrorCodeMap("modules", modpb.ModulesServiceError_ErrorCode_name) +} diff --git a/vendor/google.golang.org/appengine/internal/api.go b/vendor/google.golang.org/appengine/internal/api.go new file mode 100644 index 0000000..a2a4b4c --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/api.go @@ -0,0 +1,509 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// +build !appengine + +package internal + +import ( + "bytes" + "errors" + "fmt" + "io/ioutil" + "log" + "net" + "net/http" + "net/url" + "os" + "runtime" + "strconv" + "strings" + "sync" + "sync/atomic" + "time" + + "github.com/golang/protobuf/proto" + netcontext "golang.org/x/net/context" + + remotepb "google.golang.org/appengine/internal/remote_api" +) + +const ( + apiPath = "/rpc_http" +) + +var ( + // Incoming headers. + ticketHeader = http.CanonicalHeaderKey("X-AppEngine-API-Ticket") + dapperHeader = http.CanonicalHeaderKey("X-Google-DapperTraceInfo") + traceHeader = http.CanonicalHeaderKey("X-Cloud-Trace-Context") + curNamespaceHeader = http.CanonicalHeaderKey("X-AppEngine-Current-Namespace") + userIPHeader = http.CanonicalHeaderKey("X-AppEngine-User-IP") + remoteAddrHeader = http.CanonicalHeaderKey("X-AppEngine-Remote-Addr") + + // Outgoing headers. + apiEndpointHeader = http.CanonicalHeaderKey("X-Google-RPC-Service-Endpoint") + apiEndpointHeaderValue = []string{"app-engine-apis"} + apiMethodHeader = http.CanonicalHeaderKey("X-Google-RPC-Service-Method") + apiMethodHeaderValue = []string{"/VMRemoteAPI.CallRemoteAPI"} + apiDeadlineHeader = http.CanonicalHeaderKey("X-Google-RPC-Service-Deadline") + apiContentType = http.CanonicalHeaderKey("Content-Type") + apiContentTypeValue = []string{"application/octet-stream"} + + apiHTTPClient = &http.Client{ + Transport: &http.Transport{ + Proxy: http.ProxyFromEnvironment, + Dial: limitDial, + }, + } +) + +func apiURL() *url.URL { + host, port := "appengine.googleapis.internal", "10001" + if h := os.Getenv("API_HOST"); h != "" { + host = h + } + if p := os.Getenv("API_PORT"); p != "" { + port = p + } + return &url.URL{ + Scheme: "http", + Host: host + ":" + port, + Path: apiPath, + } +} + +func handleHTTP(w http.ResponseWriter, r *http.Request) { + c := &context{ + req: r, + outHeader: w.Header(), + apiURL: apiURL(), + logger: globalLogger(), + } + + ctxs.Lock() + ctxs.m[r] = c + ctxs.Unlock() + defer func() { + ctxs.Lock() + delete(ctxs.m, r) + ctxs.Unlock() + }() + + // Patch up RemoteAddr so it looks reasonable. + if addr := r.Header.Get(userIPHeader); addr != "" { + r.RemoteAddr = addr + } else if addr = r.Header.Get(remoteAddrHeader); addr != "" { + r.RemoteAddr = addr + } else { + // Should not normally reach here, but pick a sensible default anyway. + r.RemoteAddr = "127.0.0.1" + } + // The address in the headers will most likely be of these forms: + // 123.123.123.123 + // 2001:db8::1 + // net/http.Request.RemoteAddr is specified to be in "IP:port" form. + if _, _, err := net.SplitHostPort(r.RemoteAddr); err != nil { + // Assume the remote address is only a host; add a default port. + r.RemoteAddr = net.JoinHostPort(r.RemoteAddr, "80") + } + + executeRequestSafely(c, r) + c.outHeader = nil // make sure header changes aren't respected any more + + // Avoid nil Write call if c.Write is never called. + if c.outCode != 0 { + w.WriteHeader(c.outCode) + } + if c.outBody != nil { + w.Write(c.outBody) + } +} + +func executeRequestSafely(c *context, r *http.Request) { + defer func() { + if x := recover(); x != nil { + logf(c, 4, "%s", renderPanic(x)) // 4 == critical + c.outCode = 500 + } + }() + + http.DefaultServeMux.ServeHTTP(c, r) +} + +func renderPanic(x interface{}) string { + buf := make([]byte, 16<<10) // 16 KB should be plenty + buf = buf[:runtime.Stack(buf, false)] + + // Remove the first few stack frames: + // this func + // the recover closure in the caller + // That will root the stack trace at the site of the panic. + const ( + skipStart = "internal.renderPanic" + skipFrames = 2 + ) + start := bytes.Index(buf, []byte(skipStart)) + p := start + for i := 0; i < skipFrames*2 && p+1 < len(buf); i++ { + p = bytes.IndexByte(buf[p+1:], '\n') + p + 1 + if p < 0 { + break + } + } + if p >= 0 { + // buf[start:p+1] is the block to remove. + // Copy buf[p+1:] over buf[start:] and shrink buf. + copy(buf[start:], buf[p+1:]) + buf = buf[:len(buf)-(p+1-start)] + } + + // Add panic heading. + head := fmt.Sprintf("panic: %v\n\n", x) + if len(head) > len(buf) { + // Extremely unlikely to happen. + return head + } + copy(buf[len(head):], buf) + copy(buf, head) + + return string(buf) +} + +var ctxs = struct { + sync.Mutex + m map[*http.Request]*context + bg *context // background context, lazily initialized + // dec is used by tests to decorate the netcontext.Context returned + // for a given request. This allows tests to add overrides (such as + // WithAppIDOverride) to the context. The map is nil outside tests. + dec map[*http.Request]func(netcontext.Context) netcontext.Context +}{ + m: make(map[*http.Request]*context), +} + +// context represents the context of an in-flight HTTP request. +// It implements the appengine.Context and http.ResponseWriter interfaces. +type context struct { + req *http.Request + logger *jsonLogger + + outCode int + outHeader http.Header + outBody []byte + + apiURL *url.URL +} + +var contextKey = "holds a *context" + +func fromContext(ctx netcontext.Context) *context { + c, _ := ctx.Value(&contextKey).(*context) + return c +} + +func withContext(parent netcontext.Context, c *context) netcontext.Context { + ctx := netcontext.WithValue(parent, &contextKey, c) + if ns := c.req.Header.Get(curNamespaceHeader); ns != "" { + ctx = withNamespace(ctx, ns) + } + return ctx +} + +func toContext(c *context) netcontext.Context { + return withContext(netcontext.Background(), c) +} + +func IncomingHeaders(ctx netcontext.Context) http.Header { + if c := fromContext(ctx); c != nil { + return c.req.Header + } + return nil +} + +func WithContext(parent netcontext.Context, req *http.Request) netcontext.Context { + ctxs.Lock() + c := ctxs.m[req] + d := ctxs.dec[req] + ctxs.Unlock() + + if d != nil { + parent = d(parent) + } + + if c == nil { + // Someone passed in an http.Request that is not in-flight. + // We panic here rather than panicking at a later point + // so that stack traces will be more sensible. + log.Panic("appengine: NewContext passed an unknown http.Request") + } + return withContext(parent, c) +} + +func BackgroundContext() netcontext.Context { + ctxs.Lock() + defer ctxs.Unlock() + + if ctxs.bg != nil { + return toContext(ctxs.bg) + } + + // Compute background security ticket. + appID := partitionlessAppID() + escAppID := strings.Replace(strings.Replace(appID, ":", "_", -1), ".", "_", -1) + majVersion := VersionID(nil) + if i := strings.Index(majVersion, "."); i > 0 { + majVersion = majVersion[:i] + } + ticket := fmt.Sprintf("%s/%s.%s.%s", escAppID, ModuleName(nil), majVersion, InstanceID()) + + ctxs.bg = &context{ + req: &http.Request{ + Header: http.Header{ + ticketHeader: []string{ticket}, + }, + }, + apiURL: apiURL(), + logger: globalLogger(), + } + + return toContext(ctxs.bg) +} + +// RegisterTestRequest registers the HTTP request req for testing, such that +// any API calls are sent to the provided URL. It returns a closure to delete +// the registration. +// It should only be used by aetest package. +func RegisterTestRequest(req *http.Request, apiURL *url.URL, decorate func(netcontext.Context) netcontext.Context) func() { + c := &context{ + req: req, + apiURL: apiURL, + logger: globalLogger(), + } + ctxs.Lock() + defer ctxs.Unlock() + if _, ok := ctxs.m[req]; ok { + log.Panic("req already associated with context") + } + if _, ok := ctxs.dec[req]; ok { + log.Panic("req already associated with context") + } + if ctxs.dec == nil { + ctxs.dec = make(map[*http.Request]func(netcontext.Context) netcontext.Context) + } + ctxs.m[req] = c + ctxs.dec[req] = decorate + + return func() { + ctxs.Lock() + delete(ctxs.m, req) + delete(ctxs.dec, req) + ctxs.Unlock() + } +} + +var errTimeout = &CallError{ + Detail: "Deadline exceeded", + Code: int32(remotepb.RpcError_CANCELLED), + Timeout: true, +} + +func (c *context) Header() http.Header { return c.outHeader } + +// Copied from $GOROOT/src/pkg/net/http/transfer.go. Some response status +// codes do not permit a response body (nor response entity headers such as +// Content-Length, Content-Type, etc). +func bodyAllowedForStatus(status int) bool { + switch { + case status >= 100 && status <= 199: + return false + case status == 204: + return false + case status == 304: + return false + } + return true +} + +func (c *context) Write(b []byte) (int, error) { + if c.outCode == 0 { + c.WriteHeader(http.StatusOK) + } + if len(b) > 0 && !bodyAllowedForStatus(c.outCode) { + return 0, http.ErrBodyNotAllowed + } + c.outBody = append(c.outBody, b...) + return len(b), nil +} + +func (c *context) WriteHeader(code int) { + if c.outCode != 0 { + logf(c, 3, "WriteHeader called multiple times on request.") // error level + return + } + c.outCode = code +} + +func (c *context) post(body []byte, timeout time.Duration) (b []byte, err error) { + hreq := &http.Request{ + Method: "POST", + URL: c.apiURL, + Header: http.Header{ + apiEndpointHeader: apiEndpointHeaderValue, + apiMethodHeader: apiMethodHeaderValue, + apiContentType: apiContentTypeValue, + apiDeadlineHeader: []string{strconv.FormatFloat(timeout.Seconds(), 'f', -1, 64)}, + }, + Body: ioutil.NopCloser(bytes.NewReader(body)), + ContentLength: int64(len(body)), + Host: c.apiURL.Host, + } + if info := c.req.Header.Get(dapperHeader); info != "" { + hreq.Header.Set(dapperHeader, info) + } + if info := c.req.Header.Get(traceHeader); info != "" { + hreq.Header.Set(traceHeader, info) + } + + tr := apiHTTPClient.Transport.(*http.Transport) + + var timedOut int32 // atomic; set to 1 if timed out + t := time.AfterFunc(timeout, func() { + atomic.StoreInt32(&timedOut, 1) + tr.CancelRequest(hreq) + }) + defer t.Stop() + defer func() { + // Check if timeout was exceeded. + if atomic.LoadInt32(&timedOut) != 0 { + err = errTimeout + } + }() + + hresp, err := apiHTTPClient.Do(hreq) + if err != nil { + return nil, &CallError{ + Detail: fmt.Sprintf("service bridge HTTP failed: %v", err), + Code: int32(remotepb.RpcError_UNKNOWN), + } + } + defer hresp.Body.Close() + hrespBody, err := ioutil.ReadAll(hresp.Body) + if hresp.StatusCode != 200 { + return nil, &CallError{ + Detail: fmt.Sprintf("service bridge returned HTTP %d (%q)", hresp.StatusCode, hrespBody), + Code: int32(remotepb.RpcError_UNKNOWN), + } + } + if err != nil { + return nil, &CallError{ + Detail: fmt.Sprintf("service bridge response bad: %v", err), + Code: int32(remotepb.RpcError_UNKNOWN), + } + } + return hrespBody, nil +} + +func Call(ctx netcontext.Context, service, method string, in, out proto.Message) error { + if ns := NamespaceFromContext(ctx); ns != "" { + if fn, ok := NamespaceMods[service]; ok { + fn(in, ns) + } + } + + if f, ctx, ok := callOverrideFromContext(ctx); ok { + return f(ctx, service, method, in, out) + } + + // Handle already-done contexts quickly. + select { + case <-ctx.Done(): + return ctx.Err() + default: + } + + c := fromContext(ctx) + if c == nil { + // Give a good error message rather than a panic lower down. + return errors.New("not an App Engine context") + } + + // Apply transaction modifications if we're in a transaction. + if t := transactionFromContext(ctx); t != nil { + if t.finished { + return errors.New("transaction context has expired") + } + applyTransaction(in, &t.transaction) + } + + // Default RPC timeout is 60s. + timeout := 60 * time.Second + if deadline, ok := ctx.Deadline(); ok { + timeout = deadline.Sub(time.Now()) + } + + data, err := proto.Marshal(in) + if err != nil { + return err + } + + ticket := c.req.Header.Get(ticketHeader) + req := &remotepb.Request{ + ServiceName: &service, + Method: &method, + Request: data, + RequestId: &ticket, + } + hreqBody, err := proto.Marshal(req) + if err != nil { + return err + } + + hrespBody, err := c.post(hreqBody, timeout) + if err != nil { + return err + } + + res := &remotepb.Response{} + if err := proto.Unmarshal(hrespBody, res); err != nil { + return err + } + if res.RpcError != nil { + ce := &CallError{ + Detail: res.RpcError.GetDetail(), + Code: *res.RpcError.Code, + } + switch remotepb.RpcError_ErrorCode(ce.Code) { + case remotepb.RpcError_CANCELLED, remotepb.RpcError_DEADLINE_EXCEEDED: + ce.Timeout = true + } + return ce + } + if res.ApplicationError != nil { + return &APIError{ + Service: *req.ServiceName, + Detail: res.ApplicationError.GetDetail(), + Code: *res.ApplicationError.Code, + } + } + if res.Exception != nil || res.JavaException != nil { + // This shouldn't happen, but let's be defensive. + return &CallError{ + Detail: "service bridge returned exception", + Code: int32(remotepb.RpcError_UNKNOWN), + } + } + return proto.Unmarshal(res.Response, out) +} + +func (c *context) Request() *http.Request { + return c.req +} + +func ContextForTesting(req *http.Request) netcontext.Context { + return toContext(&context{ + req: req, + logger: testLogger, + }) +} diff --git a/vendor/google.golang.org/appengine/internal/api_classic.go b/vendor/google.golang.org/appengine/internal/api_classic.go new file mode 100644 index 0000000..597f66e --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/api_classic.go @@ -0,0 +1,159 @@ +// Copyright 2015 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// +build appengine + +package internal + +import ( + "errors" + "fmt" + "net/http" + "time" + + "appengine" + "appengine_internal" + basepb "appengine_internal/base" + + "github.com/golang/protobuf/proto" + netcontext "golang.org/x/net/context" +) + +var contextKey = "holds an appengine.Context" + +func fromContext(ctx netcontext.Context) appengine.Context { + c, _ := ctx.Value(&contextKey).(appengine.Context) + return c +} + +// This is only for classic App Engine adapters. +func ClassicContextFromContext(ctx netcontext.Context) appengine.Context { + return fromContext(ctx) +} + +func withContext(parent netcontext.Context, c appengine.Context) netcontext.Context { + ctx := netcontext.WithValue(parent, &contextKey, c) + + s := &basepb.StringProto{} + c.Call("__go__", "GetNamespace", &basepb.VoidProto{}, s, nil) + if ns := s.GetValue(); ns != "" { + ctx = NamespacedContext(ctx, ns) + } + + return ctx +} + +func IncomingHeaders(ctx netcontext.Context) http.Header { + if c := fromContext(ctx); c != nil { + if req, ok := c.Request().(*http.Request); ok { + return req.Header + } + } + return nil +} + +func WithContext(parent netcontext.Context, req *http.Request) netcontext.Context { + c := appengine.NewContext(req) + return withContext(parent, c) +} + +type testingContext struct { + appengine.Context + + req *http.Request +} + +func (t *testingContext) FullyQualifiedAppID() string { return "dev~testcontext" } +func (t *testingContext) Call(service, method string, _, _ appengine_internal.ProtoMessage, _ *appengine_internal.CallOptions) error { + if service == "__go__" && method == "GetNamespace" { + return nil + } + return fmt.Errorf("testingContext: unsupported Call") +} +func (t *testingContext) Request() interface{} { return t.req } + +func ContextForTesting(req *http.Request) netcontext.Context { + return withContext(netcontext.Background(), &testingContext{req: req}) +} + +func Call(ctx netcontext.Context, service, method string, in, out proto.Message) error { + if ns := NamespaceFromContext(ctx); ns != "" { + if fn, ok := NamespaceMods[service]; ok { + fn(in, ns) + } + } + + if f, ctx, ok := callOverrideFromContext(ctx); ok { + return f(ctx, service, method, in, out) + } + + // Handle already-done contexts quickly. + select { + case <-ctx.Done(): + return ctx.Err() + default: + } + + c := fromContext(ctx) + if c == nil { + // Give a good error message rather than a panic lower down. + return errors.New("not an App Engine context") + } + + // Apply transaction modifications if we're in a transaction. + if t := transactionFromContext(ctx); t != nil { + if t.finished { + return errors.New("transaction context has expired") + } + applyTransaction(in, &t.transaction) + } + + var opts *appengine_internal.CallOptions + if d, ok := ctx.Deadline(); ok { + opts = &appengine_internal.CallOptions{ + Timeout: d.Sub(time.Now()), + } + } + + err := c.Call(service, method, in, out, opts) + switch v := err.(type) { + case *appengine_internal.APIError: + return &APIError{ + Service: v.Service, + Detail: v.Detail, + Code: v.Code, + } + case *appengine_internal.CallError: + return &CallError{ + Detail: v.Detail, + Code: v.Code, + Timeout: v.Timeout, + } + } + return err +} + +func handleHTTP(w http.ResponseWriter, r *http.Request) { + panic("handleHTTP called; this should be impossible") +} + +func logf(c appengine.Context, level int64, format string, args ...interface{}) { + var fn func(format string, args ...interface{}) + switch level { + case 0: + fn = c.Debugf + case 1: + fn = c.Infof + case 2: + fn = c.Warningf + case 3: + fn = c.Errorf + case 4: + fn = c.Criticalf + default: + // This shouldn't happen. + fn = c.Criticalf + } + fn(format, args...) +} diff --git a/vendor/google.golang.org/appengine/internal/api_common.go b/vendor/google.golang.org/appengine/internal/api_common.go new file mode 100644 index 0000000..2db33a7 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/api_common.go @@ -0,0 +1,86 @@ +// Copyright 2015 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package internal + +import ( + "github.com/golang/protobuf/proto" + netcontext "golang.org/x/net/context" +) + +type CallOverrideFunc func(ctx netcontext.Context, service, method string, in, out proto.Message) error + +var callOverrideKey = "holds []CallOverrideFunc" + +func WithCallOverride(ctx netcontext.Context, f CallOverrideFunc) netcontext.Context { + // We avoid appending to any existing call override + // so we don't risk overwriting a popped stack below. + var cofs []CallOverrideFunc + if uf, ok := ctx.Value(&callOverrideKey).([]CallOverrideFunc); ok { + cofs = append(cofs, uf...) + } + cofs = append(cofs, f) + return netcontext.WithValue(ctx, &callOverrideKey, cofs) +} + +func callOverrideFromContext(ctx netcontext.Context) (CallOverrideFunc, netcontext.Context, bool) { + cofs, _ := ctx.Value(&callOverrideKey).([]CallOverrideFunc) + if len(cofs) == 0 { + return nil, nil, false + } + // We found a list of overrides; grab the last, and reconstitute a + // context that will hide it. + f := cofs[len(cofs)-1] + ctx = netcontext.WithValue(ctx, &callOverrideKey, cofs[:len(cofs)-1]) + return f, ctx, true +} + +type logOverrideFunc func(level int64, format string, args ...interface{}) + +var logOverrideKey = "holds a logOverrideFunc" + +func WithLogOverride(ctx netcontext.Context, f logOverrideFunc) netcontext.Context { + return netcontext.WithValue(ctx, &logOverrideKey, f) +} + +var appIDOverrideKey = "holds a string, being the full app ID" + +func WithAppIDOverride(ctx netcontext.Context, appID string) netcontext.Context { + return netcontext.WithValue(ctx, &appIDOverrideKey, appID) +} + +var namespaceKey = "holds the namespace string" + +func withNamespace(ctx netcontext.Context, ns string) netcontext.Context { + return netcontext.WithValue(ctx, &namespaceKey, ns) +} + +func NamespaceFromContext(ctx netcontext.Context) string { + // If there's no namespace, return the empty string. + ns, _ := ctx.Value(&namespaceKey).(string) + return ns +} + +// FullyQualifiedAppID returns the fully-qualified application ID. +// This may contain a partition prefix (e.g. "s~" for High Replication apps), +// or a domain prefix (e.g. "example.com:"). +func FullyQualifiedAppID(ctx netcontext.Context) string { + if id, ok := ctx.Value(&appIDOverrideKey).(string); ok { + return id + } + return fullyQualifiedAppID(ctx) +} + +func Logf(ctx netcontext.Context, level int64, format string, args ...interface{}) { + if f, ok := ctx.Value(&logOverrideKey).(logOverrideFunc); ok { + f(level, format, args...) + return + } + logf(fromContext(ctx), level, format, args...) +} + +// NamespacedContext wraps a Context to support namespaces. +func NamespacedContext(ctx netcontext.Context, namespace string) netcontext.Context { + return withNamespace(ctx, namespace) +} diff --git a/vendor/google.golang.org/appengine/internal/app_id.go b/vendor/google.golang.org/appengine/internal/app_id.go new file mode 100644 index 0000000..11df8c0 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/app_id.go @@ -0,0 +1,28 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package internal + +import ( + "strings" +) + +func parseFullAppID(appid string) (partition, domain, displayID string) { + if i := strings.Index(appid, "~"); i != -1 { + partition, appid = appid[:i], appid[i+1:] + } + if i := strings.Index(appid, ":"); i != -1 { + domain, appid = appid[:i], appid[i+1:] + } + return partition, domain, appid +} + +// appID returns "appid" or "domain.com:appid". +func appID(fullAppID string) string { + _, dom, dis := parseFullAppID(fullAppID) + if dom != "" { + return dom + ":" + dis + } + return dis +} diff --git a/vendor/google.golang.org/appengine/internal/base/api_base.pb.go b/vendor/google.golang.org/appengine/internal/base/api_base.pb.go new file mode 100644 index 0000000..36a1956 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/base/api_base.pb.go @@ -0,0 +1,133 @@ +// Code generated by protoc-gen-go. +// source: google.golang.org/appengine/internal/base/api_base.proto +// DO NOT EDIT! + +/* +Package base is a generated protocol buffer package. + +It is generated from these files: + google.golang.org/appengine/internal/base/api_base.proto + +It has these top-level messages: + StringProto + Integer32Proto + Integer64Proto + BoolProto + DoubleProto + BytesProto + VoidProto +*/ +package base + +import proto "github.com/golang/protobuf/proto" +import fmt "fmt" +import math "math" + +// Reference imports to suppress errors if they are not otherwise used. +var _ = proto.Marshal +var _ = fmt.Errorf +var _ = math.Inf + +type StringProto struct { + Value *string `protobuf:"bytes,1,req,name=value" json:"value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *StringProto) Reset() { *m = StringProto{} } +func (m *StringProto) String() string { return proto.CompactTextString(m) } +func (*StringProto) ProtoMessage() {} + +func (m *StringProto) GetValue() string { + if m != nil && m.Value != nil { + return *m.Value + } + return "" +} + +type Integer32Proto struct { + Value *int32 `protobuf:"varint,1,req,name=value" json:"value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Integer32Proto) Reset() { *m = Integer32Proto{} } +func (m *Integer32Proto) String() string { return proto.CompactTextString(m) } +func (*Integer32Proto) ProtoMessage() {} + +func (m *Integer32Proto) GetValue() int32 { + if m != nil && m.Value != nil { + return *m.Value + } + return 0 +} + +type Integer64Proto struct { + Value *int64 `protobuf:"varint,1,req,name=value" json:"value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Integer64Proto) Reset() { *m = Integer64Proto{} } +func (m *Integer64Proto) String() string { return proto.CompactTextString(m) } +func (*Integer64Proto) ProtoMessage() {} + +func (m *Integer64Proto) GetValue() int64 { + if m != nil && m.Value != nil { + return *m.Value + } + return 0 +} + +type BoolProto struct { + Value *bool `protobuf:"varint,1,req,name=value" json:"value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *BoolProto) Reset() { *m = BoolProto{} } +func (m *BoolProto) String() string { return proto.CompactTextString(m) } +func (*BoolProto) ProtoMessage() {} + +func (m *BoolProto) GetValue() bool { + if m != nil && m.Value != nil { + return *m.Value + } + return false +} + +type DoubleProto struct { + Value *float64 `protobuf:"fixed64,1,req,name=value" json:"value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *DoubleProto) Reset() { *m = DoubleProto{} } +func (m *DoubleProto) String() string { return proto.CompactTextString(m) } +func (*DoubleProto) ProtoMessage() {} + +func (m *DoubleProto) GetValue() float64 { + if m != nil && m.Value != nil { + return *m.Value + } + return 0 +} + +type BytesProto struct { + Value []byte `protobuf:"bytes,1,req,name=value" json:"value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *BytesProto) Reset() { *m = BytesProto{} } +func (m *BytesProto) String() string { return proto.CompactTextString(m) } +func (*BytesProto) ProtoMessage() {} + +func (m *BytesProto) GetValue() []byte { + if m != nil { + return m.Value + } + return nil +} + +type VoidProto struct { + XXX_unrecognized []byte `json:"-"` +} + +func (m *VoidProto) Reset() { *m = VoidProto{} } +func (m *VoidProto) String() string { return proto.CompactTextString(m) } +func (*VoidProto) ProtoMessage() {} diff --git a/vendor/google.golang.org/appengine/internal/base/api_base.proto b/vendor/google.golang.org/appengine/internal/base/api_base.proto new file mode 100644 index 0000000..56cd7a3 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/base/api_base.proto @@ -0,0 +1,33 @@ +// Built-in base types for API calls. Primarily useful as return types. + +syntax = "proto2"; +option go_package = "base"; + +package appengine.base; + +message StringProto { + required string value = 1; +} + +message Integer32Proto { + required int32 value = 1; +} + +message Integer64Proto { + required int64 value = 1; +} + +message BoolProto { + required bool value = 1; +} + +message DoubleProto { + required double value = 1; +} + +message BytesProto { + required bytes value = 1 [ctype=CORD]; +} + +message VoidProto { +} diff --git a/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.pb.go b/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.pb.go new file mode 100644 index 0000000..8613cb7 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.pb.go @@ -0,0 +1,2778 @@ +// Code generated by protoc-gen-go. +// source: google.golang.org/appengine/internal/datastore/datastore_v3.proto +// DO NOT EDIT! + +/* +Package datastore is a generated protocol buffer package. + +It is generated from these files: + google.golang.org/appengine/internal/datastore/datastore_v3.proto + +It has these top-level messages: + Action + PropertyValue + Property + Path + Reference + User + EntityProto + CompositeProperty + Index + CompositeIndex + IndexPostfix + IndexPosition + Snapshot + InternalHeader + Transaction + Query + CompiledQuery + CompiledCursor + Cursor + Error + Cost + GetRequest + GetResponse + PutRequest + PutResponse + TouchRequest + TouchResponse + DeleteRequest + DeleteResponse + NextRequest + QueryResult + AllocateIdsRequest + AllocateIdsResponse + CompositeIndices + AddActionsRequest + AddActionsResponse + BeginTransactionRequest + CommitResponse +*/ +package datastore + +import proto "github.com/golang/protobuf/proto" +import fmt "fmt" +import math "math" + +// Reference imports to suppress errors if they are not otherwise used. +var _ = proto.Marshal +var _ = fmt.Errorf +var _ = math.Inf + +type Property_Meaning int32 + +const ( + Property_NO_MEANING Property_Meaning = 0 + Property_BLOB Property_Meaning = 14 + Property_TEXT Property_Meaning = 15 + Property_BYTESTRING Property_Meaning = 16 + Property_ATOM_CATEGORY Property_Meaning = 1 + Property_ATOM_LINK Property_Meaning = 2 + Property_ATOM_TITLE Property_Meaning = 3 + Property_ATOM_CONTENT Property_Meaning = 4 + Property_ATOM_SUMMARY Property_Meaning = 5 + Property_ATOM_AUTHOR Property_Meaning = 6 + Property_GD_WHEN Property_Meaning = 7 + Property_GD_EMAIL Property_Meaning = 8 + Property_GEORSS_POINT Property_Meaning = 9 + Property_GD_IM Property_Meaning = 10 + Property_GD_PHONENUMBER Property_Meaning = 11 + Property_GD_POSTALADDRESS Property_Meaning = 12 + Property_GD_RATING Property_Meaning = 13 + Property_BLOBKEY Property_Meaning = 17 + Property_ENTITY_PROTO Property_Meaning = 19 + Property_INDEX_VALUE Property_Meaning = 18 +) + +var Property_Meaning_name = map[int32]string{ + 0: "NO_MEANING", + 14: "BLOB", + 15: "TEXT", + 16: "BYTESTRING", + 1: "ATOM_CATEGORY", + 2: "ATOM_LINK", + 3: "ATOM_TITLE", + 4: "ATOM_CONTENT", + 5: "ATOM_SUMMARY", + 6: "ATOM_AUTHOR", + 7: "GD_WHEN", + 8: "GD_EMAIL", + 9: "GEORSS_POINT", + 10: "GD_IM", + 11: "GD_PHONENUMBER", + 12: "GD_POSTALADDRESS", + 13: "GD_RATING", + 17: "BLOBKEY", + 19: "ENTITY_PROTO", + 18: "INDEX_VALUE", +} +var Property_Meaning_value = map[string]int32{ + "NO_MEANING": 0, + "BLOB": 14, + "TEXT": 15, + "BYTESTRING": 16, + "ATOM_CATEGORY": 1, + "ATOM_LINK": 2, + "ATOM_TITLE": 3, + "ATOM_CONTENT": 4, + "ATOM_SUMMARY": 5, + "ATOM_AUTHOR": 6, + "GD_WHEN": 7, + "GD_EMAIL": 8, + "GEORSS_POINT": 9, + "GD_IM": 10, + "GD_PHONENUMBER": 11, + "GD_POSTALADDRESS": 12, + "GD_RATING": 13, + "BLOBKEY": 17, + "ENTITY_PROTO": 19, + "INDEX_VALUE": 18, +} + +func (x Property_Meaning) Enum() *Property_Meaning { + p := new(Property_Meaning) + *p = x + return p +} +func (x Property_Meaning) String() string { + return proto.EnumName(Property_Meaning_name, int32(x)) +} +func (x *Property_Meaning) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Property_Meaning_value, data, "Property_Meaning") + if err != nil { + return err + } + *x = Property_Meaning(value) + return nil +} + +type Property_FtsTokenizationOption int32 + +const ( + Property_HTML Property_FtsTokenizationOption = 1 + Property_ATOM Property_FtsTokenizationOption = 2 +) + +var Property_FtsTokenizationOption_name = map[int32]string{ + 1: "HTML", + 2: "ATOM", +} +var Property_FtsTokenizationOption_value = map[string]int32{ + "HTML": 1, + "ATOM": 2, +} + +func (x Property_FtsTokenizationOption) Enum() *Property_FtsTokenizationOption { + p := new(Property_FtsTokenizationOption) + *p = x + return p +} +func (x Property_FtsTokenizationOption) String() string { + return proto.EnumName(Property_FtsTokenizationOption_name, int32(x)) +} +func (x *Property_FtsTokenizationOption) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Property_FtsTokenizationOption_value, data, "Property_FtsTokenizationOption") + if err != nil { + return err + } + *x = Property_FtsTokenizationOption(value) + return nil +} + +type EntityProto_Kind int32 + +const ( + EntityProto_GD_CONTACT EntityProto_Kind = 1 + EntityProto_GD_EVENT EntityProto_Kind = 2 + EntityProto_GD_MESSAGE EntityProto_Kind = 3 +) + +var EntityProto_Kind_name = map[int32]string{ + 1: "GD_CONTACT", + 2: "GD_EVENT", + 3: "GD_MESSAGE", +} +var EntityProto_Kind_value = map[string]int32{ + "GD_CONTACT": 1, + "GD_EVENT": 2, + "GD_MESSAGE": 3, +} + +func (x EntityProto_Kind) Enum() *EntityProto_Kind { + p := new(EntityProto_Kind) + *p = x + return p +} +func (x EntityProto_Kind) String() string { + return proto.EnumName(EntityProto_Kind_name, int32(x)) +} +func (x *EntityProto_Kind) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(EntityProto_Kind_value, data, "EntityProto_Kind") + if err != nil { + return err + } + *x = EntityProto_Kind(value) + return nil +} + +type Index_Property_Direction int32 + +const ( + Index_Property_ASCENDING Index_Property_Direction = 1 + Index_Property_DESCENDING Index_Property_Direction = 2 +) + +var Index_Property_Direction_name = map[int32]string{ + 1: "ASCENDING", + 2: "DESCENDING", +} +var Index_Property_Direction_value = map[string]int32{ + "ASCENDING": 1, + "DESCENDING": 2, +} + +func (x Index_Property_Direction) Enum() *Index_Property_Direction { + p := new(Index_Property_Direction) + *p = x + return p +} +func (x Index_Property_Direction) String() string { + return proto.EnumName(Index_Property_Direction_name, int32(x)) +} +func (x *Index_Property_Direction) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Index_Property_Direction_value, data, "Index_Property_Direction") + if err != nil { + return err + } + *x = Index_Property_Direction(value) + return nil +} + +type CompositeIndex_State int32 + +const ( + CompositeIndex_WRITE_ONLY CompositeIndex_State = 1 + CompositeIndex_READ_WRITE CompositeIndex_State = 2 + CompositeIndex_DELETED CompositeIndex_State = 3 + CompositeIndex_ERROR CompositeIndex_State = 4 +) + +var CompositeIndex_State_name = map[int32]string{ + 1: "WRITE_ONLY", + 2: "READ_WRITE", + 3: "DELETED", + 4: "ERROR", +} +var CompositeIndex_State_value = map[string]int32{ + "WRITE_ONLY": 1, + "READ_WRITE": 2, + "DELETED": 3, + "ERROR": 4, +} + +func (x CompositeIndex_State) Enum() *CompositeIndex_State { + p := new(CompositeIndex_State) + *p = x + return p +} +func (x CompositeIndex_State) String() string { + return proto.EnumName(CompositeIndex_State_name, int32(x)) +} +func (x *CompositeIndex_State) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(CompositeIndex_State_value, data, "CompositeIndex_State") + if err != nil { + return err + } + *x = CompositeIndex_State(value) + return nil +} + +type Snapshot_Status int32 + +const ( + Snapshot_INACTIVE Snapshot_Status = 0 + Snapshot_ACTIVE Snapshot_Status = 1 +) + +var Snapshot_Status_name = map[int32]string{ + 0: "INACTIVE", + 1: "ACTIVE", +} +var Snapshot_Status_value = map[string]int32{ + "INACTIVE": 0, + "ACTIVE": 1, +} + +func (x Snapshot_Status) Enum() *Snapshot_Status { + p := new(Snapshot_Status) + *p = x + return p +} +func (x Snapshot_Status) String() string { + return proto.EnumName(Snapshot_Status_name, int32(x)) +} +func (x *Snapshot_Status) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Snapshot_Status_value, data, "Snapshot_Status") + if err != nil { + return err + } + *x = Snapshot_Status(value) + return nil +} + +type Query_Hint int32 + +const ( + Query_ORDER_FIRST Query_Hint = 1 + Query_ANCESTOR_FIRST Query_Hint = 2 + Query_FILTER_FIRST Query_Hint = 3 +) + +var Query_Hint_name = map[int32]string{ + 1: "ORDER_FIRST", + 2: "ANCESTOR_FIRST", + 3: "FILTER_FIRST", +} +var Query_Hint_value = map[string]int32{ + "ORDER_FIRST": 1, + "ANCESTOR_FIRST": 2, + "FILTER_FIRST": 3, +} + +func (x Query_Hint) Enum() *Query_Hint { + p := new(Query_Hint) + *p = x + return p +} +func (x Query_Hint) String() string { + return proto.EnumName(Query_Hint_name, int32(x)) +} +func (x *Query_Hint) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Query_Hint_value, data, "Query_Hint") + if err != nil { + return err + } + *x = Query_Hint(value) + return nil +} + +type Query_Filter_Operator int32 + +const ( + Query_Filter_LESS_THAN Query_Filter_Operator = 1 + Query_Filter_LESS_THAN_OR_EQUAL Query_Filter_Operator = 2 + Query_Filter_GREATER_THAN Query_Filter_Operator = 3 + Query_Filter_GREATER_THAN_OR_EQUAL Query_Filter_Operator = 4 + Query_Filter_EQUAL Query_Filter_Operator = 5 + Query_Filter_IN Query_Filter_Operator = 6 + Query_Filter_EXISTS Query_Filter_Operator = 7 +) + +var Query_Filter_Operator_name = map[int32]string{ + 1: "LESS_THAN", + 2: "LESS_THAN_OR_EQUAL", + 3: "GREATER_THAN", + 4: "GREATER_THAN_OR_EQUAL", + 5: "EQUAL", + 6: "IN", + 7: "EXISTS", +} +var Query_Filter_Operator_value = map[string]int32{ + "LESS_THAN": 1, + "LESS_THAN_OR_EQUAL": 2, + "GREATER_THAN": 3, + "GREATER_THAN_OR_EQUAL": 4, + "EQUAL": 5, + "IN": 6, + "EXISTS": 7, +} + +func (x Query_Filter_Operator) Enum() *Query_Filter_Operator { + p := new(Query_Filter_Operator) + *p = x + return p +} +func (x Query_Filter_Operator) String() string { + return proto.EnumName(Query_Filter_Operator_name, int32(x)) +} +func (x *Query_Filter_Operator) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Query_Filter_Operator_value, data, "Query_Filter_Operator") + if err != nil { + return err + } + *x = Query_Filter_Operator(value) + return nil +} + +type Query_Order_Direction int32 + +const ( + Query_Order_ASCENDING Query_Order_Direction = 1 + Query_Order_DESCENDING Query_Order_Direction = 2 +) + +var Query_Order_Direction_name = map[int32]string{ + 1: "ASCENDING", + 2: "DESCENDING", +} +var Query_Order_Direction_value = map[string]int32{ + "ASCENDING": 1, + "DESCENDING": 2, +} + +func (x Query_Order_Direction) Enum() *Query_Order_Direction { + p := new(Query_Order_Direction) + *p = x + return p +} +func (x Query_Order_Direction) String() string { + return proto.EnumName(Query_Order_Direction_name, int32(x)) +} +func (x *Query_Order_Direction) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Query_Order_Direction_value, data, "Query_Order_Direction") + if err != nil { + return err + } + *x = Query_Order_Direction(value) + return nil +} + +type Error_ErrorCode int32 + +const ( + Error_BAD_REQUEST Error_ErrorCode = 1 + Error_CONCURRENT_TRANSACTION Error_ErrorCode = 2 + Error_INTERNAL_ERROR Error_ErrorCode = 3 + Error_NEED_INDEX Error_ErrorCode = 4 + Error_TIMEOUT Error_ErrorCode = 5 + Error_PERMISSION_DENIED Error_ErrorCode = 6 + Error_BIGTABLE_ERROR Error_ErrorCode = 7 + Error_COMMITTED_BUT_STILL_APPLYING Error_ErrorCode = 8 + Error_CAPABILITY_DISABLED Error_ErrorCode = 9 + Error_TRY_ALTERNATE_BACKEND Error_ErrorCode = 10 + Error_SAFE_TIME_TOO_OLD Error_ErrorCode = 11 +) + +var Error_ErrorCode_name = map[int32]string{ + 1: "BAD_REQUEST", + 2: "CONCURRENT_TRANSACTION", + 3: "INTERNAL_ERROR", + 4: "NEED_INDEX", + 5: "TIMEOUT", + 6: "PERMISSION_DENIED", + 7: "BIGTABLE_ERROR", + 8: "COMMITTED_BUT_STILL_APPLYING", + 9: "CAPABILITY_DISABLED", + 10: "TRY_ALTERNATE_BACKEND", + 11: "SAFE_TIME_TOO_OLD", +} +var Error_ErrorCode_value = map[string]int32{ + "BAD_REQUEST": 1, + "CONCURRENT_TRANSACTION": 2, + "INTERNAL_ERROR": 3, + "NEED_INDEX": 4, + "TIMEOUT": 5, + "PERMISSION_DENIED": 6, + "BIGTABLE_ERROR": 7, + "COMMITTED_BUT_STILL_APPLYING": 8, + "CAPABILITY_DISABLED": 9, + "TRY_ALTERNATE_BACKEND": 10, + "SAFE_TIME_TOO_OLD": 11, +} + +func (x Error_ErrorCode) Enum() *Error_ErrorCode { + p := new(Error_ErrorCode) + *p = x + return p +} +func (x Error_ErrorCode) String() string { + return proto.EnumName(Error_ErrorCode_name, int32(x)) +} +func (x *Error_ErrorCode) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Error_ErrorCode_value, data, "Error_ErrorCode") + if err != nil { + return err + } + *x = Error_ErrorCode(value) + return nil +} + +type PutRequest_AutoIdPolicy int32 + +const ( + PutRequest_CURRENT PutRequest_AutoIdPolicy = 0 + PutRequest_SEQUENTIAL PutRequest_AutoIdPolicy = 1 +) + +var PutRequest_AutoIdPolicy_name = map[int32]string{ + 0: "CURRENT", + 1: "SEQUENTIAL", +} +var PutRequest_AutoIdPolicy_value = map[string]int32{ + "CURRENT": 0, + "SEQUENTIAL": 1, +} + +func (x PutRequest_AutoIdPolicy) Enum() *PutRequest_AutoIdPolicy { + p := new(PutRequest_AutoIdPolicy) + *p = x + return p +} +func (x PutRequest_AutoIdPolicy) String() string { + return proto.EnumName(PutRequest_AutoIdPolicy_name, int32(x)) +} +func (x *PutRequest_AutoIdPolicy) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(PutRequest_AutoIdPolicy_value, data, "PutRequest_AutoIdPolicy") + if err != nil { + return err + } + *x = PutRequest_AutoIdPolicy(value) + return nil +} + +type Action struct { + XXX_unrecognized []byte `json:"-"` +} + +func (m *Action) Reset() { *m = Action{} } +func (m *Action) String() string { return proto.CompactTextString(m) } +func (*Action) ProtoMessage() {} + +type PropertyValue struct { + Int64Value *int64 `protobuf:"varint,1,opt,name=int64Value" json:"int64Value,omitempty"` + BooleanValue *bool `protobuf:"varint,2,opt,name=booleanValue" json:"booleanValue,omitempty"` + StringValue *string `protobuf:"bytes,3,opt,name=stringValue" json:"stringValue,omitempty"` + DoubleValue *float64 `protobuf:"fixed64,4,opt,name=doubleValue" json:"doubleValue,omitempty"` + Pointvalue *PropertyValue_PointValue `protobuf:"group,5,opt,name=PointValue" json:"pointvalue,omitempty"` + Uservalue *PropertyValue_UserValue `protobuf:"group,8,opt,name=UserValue" json:"uservalue,omitempty"` + Referencevalue *PropertyValue_ReferenceValue `protobuf:"group,12,opt,name=ReferenceValue" json:"referencevalue,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *PropertyValue) Reset() { *m = PropertyValue{} } +func (m *PropertyValue) String() string { return proto.CompactTextString(m) } +func (*PropertyValue) ProtoMessage() {} + +func (m *PropertyValue) GetInt64Value() int64 { + if m != nil && m.Int64Value != nil { + return *m.Int64Value + } + return 0 +} + +func (m *PropertyValue) GetBooleanValue() bool { + if m != nil && m.BooleanValue != nil { + return *m.BooleanValue + } + return false +} + +func (m *PropertyValue) GetStringValue() string { + if m != nil && m.StringValue != nil { + return *m.StringValue + } + return "" +} + +func (m *PropertyValue) GetDoubleValue() float64 { + if m != nil && m.DoubleValue != nil { + return *m.DoubleValue + } + return 0 +} + +func (m *PropertyValue) GetPointvalue() *PropertyValue_PointValue { + if m != nil { + return m.Pointvalue + } + return nil +} + +func (m *PropertyValue) GetUservalue() *PropertyValue_UserValue { + if m != nil { + return m.Uservalue + } + return nil +} + +func (m *PropertyValue) GetReferencevalue() *PropertyValue_ReferenceValue { + if m != nil { + return m.Referencevalue + } + return nil +} + +type PropertyValue_PointValue struct { + X *float64 `protobuf:"fixed64,6,req,name=x" json:"x,omitempty"` + Y *float64 `protobuf:"fixed64,7,req,name=y" json:"y,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *PropertyValue_PointValue) Reset() { *m = PropertyValue_PointValue{} } +func (m *PropertyValue_PointValue) String() string { return proto.CompactTextString(m) } +func (*PropertyValue_PointValue) ProtoMessage() {} + +func (m *PropertyValue_PointValue) GetX() float64 { + if m != nil && m.X != nil { + return *m.X + } + return 0 +} + +func (m *PropertyValue_PointValue) GetY() float64 { + if m != nil && m.Y != nil { + return *m.Y + } + return 0 +} + +type PropertyValue_UserValue struct { + Email *string `protobuf:"bytes,9,req,name=email" json:"email,omitempty"` + AuthDomain *string `protobuf:"bytes,10,req,name=auth_domain" json:"auth_domain,omitempty"` + Nickname *string `protobuf:"bytes,11,opt,name=nickname" json:"nickname,omitempty"` + FederatedIdentity *string `protobuf:"bytes,21,opt,name=federated_identity" json:"federated_identity,omitempty"` + FederatedProvider *string `protobuf:"bytes,22,opt,name=federated_provider" json:"federated_provider,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *PropertyValue_UserValue) Reset() { *m = PropertyValue_UserValue{} } +func (m *PropertyValue_UserValue) String() string { return proto.CompactTextString(m) } +func (*PropertyValue_UserValue) ProtoMessage() {} + +func (m *PropertyValue_UserValue) GetEmail() string { + if m != nil && m.Email != nil { + return *m.Email + } + return "" +} + +func (m *PropertyValue_UserValue) GetAuthDomain() string { + if m != nil && m.AuthDomain != nil { + return *m.AuthDomain + } + return "" +} + +func (m *PropertyValue_UserValue) GetNickname() string { + if m != nil && m.Nickname != nil { + return *m.Nickname + } + return "" +} + +func (m *PropertyValue_UserValue) GetFederatedIdentity() string { + if m != nil && m.FederatedIdentity != nil { + return *m.FederatedIdentity + } + return "" +} + +func (m *PropertyValue_UserValue) GetFederatedProvider() string { + if m != nil && m.FederatedProvider != nil { + return *m.FederatedProvider + } + return "" +} + +type PropertyValue_ReferenceValue struct { + App *string `protobuf:"bytes,13,req,name=app" json:"app,omitempty"` + NameSpace *string `protobuf:"bytes,20,opt,name=name_space" json:"name_space,omitempty"` + Pathelement []*PropertyValue_ReferenceValue_PathElement `protobuf:"group,14,rep,name=PathElement" json:"pathelement,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *PropertyValue_ReferenceValue) Reset() { *m = PropertyValue_ReferenceValue{} } +func (m *PropertyValue_ReferenceValue) String() string { return proto.CompactTextString(m) } +func (*PropertyValue_ReferenceValue) ProtoMessage() {} + +func (m *PropertyValue_ReferenceValue) GetApp() string { + if m != nil && m.App != nil { + return *m.App + } + return "" +} + +func (m *PropertyValue_ReferenceValue) GetNameSpace() string { + if m != nil && m.NameSpace != nil { + return *m.NameSpace + } + return "" +} + +func (m *PropertyValue_ReferenceValue) GetPathelement() []*PropertyValue_ReferenceValue_PathElement { + if m != nil { + return m.Pathelement + } + return nil +} + +type PropertyValue_ReferenceValue_PathElement struct { + Type *string `protobuf:"bytes,15,req,name=type" json:"type,omitempty"` + Id *int64 `protobuf:"varint,16,opt,name=id" json:"id,omitempty"` + Name *string `protobuf:"bytes,17,opt,name=name" json:"name,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *PropertyValue_ReferenceValue_PathElement) Reset() { + *m = PropertyValue_ReferenceValue_PathElement{} +} +func (m *PropertyValue_ReferenceValue_PathElement) String() string { return proto.CompactTextString(m) } +func (*PropertyValue_ReferenceValue_PathElement) ProtoMessage() {} + +func (m *PropertyValue_ReferenceValue_PathElement) GetType() string { + if m != nil && m.Type != nil { + return *m.Type + } + return "" +} + +func (m *PropertyValue_ReferenceValue_PathElement) GetId() int64 { + if m != nil && m.Id != nil { + return *m.Id + } + return 0 +} + +func (m *PropertyValue_ReferenceValue_PathElement) GetName() string { + if m != nil && m.Name != nil { + return *m.Name + } + return "" +} + +type Property struct { + Meaning *Property_Meaning `protobuf:"varint,1,opt,name=meaning,enum=appengine.Property_Meaning,def=0" json:"meaning,omitempty"` + MeaningUri *string `protobuf:"bytes,2,opt,name=meaning_uri" json:"meaning_uri,omitempty"` + Name *string `protobuf:"bytes,3,req,name=name" json:"name,omitempty"` + Value *PropertyValue `protobuf:"bytes,5,req,name=value" json:"value,omitempty"` + Multiple *bool `protobuf:"varint,4,req,name=multiple" json:"multiple,omitempty"` + Searchable *bool `protobuf:"varint,6,opt,name=searchable,def=0" json:"searchable,omitempty"` + FtsTokenizationOption *Property_FtsTokenizationOption `protobuf:"varint,8,opt,name=fts_tokenization_option,enum=appengine.Property_FtsTokenizationOption" json:"fts_tokenization_option,omitempty"` + Locale *string `protobuf:"bytes,9,opt,name=locale,def=en" json:"locale,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Property) Reset() { *m = Property{} } +func (m *Property) String() string { return proto.CompactTextString(m) } +func (*Property) ProtoMessage() {} + +const Default_Property_Meaning Property_Meaning = Property_NO_MEANING +const Default_Property_Searchable bool = false +const Default_Property_Locale string = "en" + +func (m *Property) GetMeaning() Property_Meaning { + if m != nil && m.Meaning != nil { + return *m.Meaning + } + return Default_Property_Meaning +} + +func (m *Property) GetMeaningUri() string { + if m != nil && m.MeaningUri != nil { + return *m.MeaningUri + } + return "" +} + +func (m *Property) GetName() string { + if m != nil && m.Name != nil { + return *m.Name + } + return "" +} + +func (m *Property) GetValue() *PropertyValue { + if m != nil { + return m.Value + } + return nil +} + +func (m *Property) GetMultiple() bool { + if m != nil && m.Multiple != nil { + return *m.Multiple + } + return false +} + +func (m *Property) GetSearchable() bool { + if m != nil && m.Searchable != nil { + return *m.Searchable + } + return Default_Property_Searchable +} + +func (m *Property) GetFtsTokenizationOption() Property_FtsTokenizationOption { + if m != nil && m.FtsTokenizationOption != nil { + return *m.FtsTokenizationOption + } + return Property_HTML +} + +func (m *Property) GetLocale() string { + if m != nil && m.Locale != nil { + return *m.Locale + } + return Default_Property_Locale +} + +type Path struct { + Element []*Path_Element `protobuf:"group,1,rep,name=Element" json:"element,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Path) Reset() { *m = Path{} } +func (m *Path) String() string { return proto.CompactTextString(m) } +func (*Path) ProtoMessage() {} + +func (m *Path) GetElement() []*Path_Element { + if m != nil { + return m.Element + } + return nil +} + +type Path_Element struct { + Type *string `protobuf:"bytes,2,req,name=type" json:"type,omitempty"` + Id *int64 `protobuf:"varint,3,opt,name=id" json:"id,omitempty"` + Name *string `protobuf:"bytes,4,opt,name=name" json:"name,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Path_Element) Reset() { *m = Path_Element{} } +func (m *Path_Element) String() string { return proto.CompactTextString(m) } +func (*Path_Element) ProtoMessage() {} + +func (m *Path_Element) GetType() string { + if m != nil && m.Type != nil { + return *m.Type + } + return "" +} + +func (m *Path_Element) GetId() int64 { + if m != nil && m.Id != nil { + return *m.Id + } + return 0 +} + +func (m *Path_Element) GetName() string { + if m != nil && m.Name != nil { + return *m.Name + } + return "" +} + +type Reference struct { + App *string `protobuf:"bytes,13,req,name=app" json:"app,omitempty"` + NameSpace *string `protobuf:"bytes,20,opt,name=name_space" json:"name_space,omitempty"` + Path *Path `protobuf:"bytes,14,req,name=path" json:"path,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Reference) Reset() { *m = Reference{} } +func (m *Reference) String() string { return proto.CompactTextString(m) } +func (*Reference) ProtoMessage() {} + +func (m *Reference) GetApp() string { + if m != nil && m.App != nil { + return *m.App + } + return "" +} + +func (m *Reference) GetNameSpace() string { + if m != nil && m.NameSpace != nil { + return *m.NameSpace + } + return "" +} + +func (m *Reference) GetPath() *Path { + if m != nil { + return m.Path + } + return nil +} + +type User struct { + Email *string `protobuf:"bytes,1,req,name=email" json:"email,omitempty"` + AuthDomain *string `protobuf:"bytes,2,req,name=auth_domain" json:"auth_domain,omitempty"` + Nickname *string `protobuf:"bytes,3,opt,name=nickname" json:"nickname,omitempty"` + FederatedIdentity *string `protobuf:"bytes,6,opt,name=federated_identity" json:"federated_identity,omitempty"` + FederatedProvider *string `protobuf:"bytes,7,opt,name=federated_provider" json:"federated_provider,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *User) Reset() { *m = User{} } +func (m *User) String() string { return proto.CompactTextString(m) } +func (*User) ProtoMessage() {} + +func (m *User) GetEmail() string { + if m != nil && m.Email != nil { + return *m.Email + } + return "" +} + +func (m *User) GetAuthDomain() string { + if m != nil && m.AuthDomain != nil { + return *m.AuthDomain + } + return "" +} + +func (m *User) GetNickname() string { + if m != nil && m.Nickname != nil { + return *m.Nickname + } + return "" +} + +func (m *User) GetFederatedIdentity() string { + if m != nil && m.FederatedIdentity != nil { + return *m.FederatedIdentity + } + return "" +} + +func (m *User) GetFederatedProvider() string { + if m != nil && m.FederatedProvider != nil { + return *m.FederatedProvider + } + return "" +} + +type EntityProto struct { + Key *Reference `protobuf:"bytes,13,req,name=key" json:"key,omitempty"` + EntityGroup *Path `protobuf:"bytes,16,req,name=entity_group" json:"entity_group,omitempty"` + Owner *User `protobuf:"bytes,17,opt,name=owner" json:"owner,omitempty"` + Kind *EntityProto_Kind `protobuf:"varint,4,opt,name=kind,enum=appengine.EntityProto_Kind" json:"kind,omitempty"` + KindUri *string `protobuf:"bytes,5,opt,name=kind_uri" json:"kind_uri,omitempty"` + Property []*Property `protobuf:"bytes,14,rep,name=property" json:"property,omitempty"` + RawProperty []*Property `protobuf:"bytes,15,rep,name=raw_property" json:"raw_property,omitempty"` + Rank *int32 `protobuf:"varint,18,opt,name=rank" json:"rank,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *EntityProto) Reset() { *m = EntityProto{} } +func (m *EntityProto) String() string { return proto.CompactTextString(m) } +func (*EntityProto) ProtoMessage() {} + +func (m *EntityProto) GetKey() *Reference { + if m != nil { + return m.Key + } + return nil +} + +func (m *EntityProto) GetEntityGroup() *Path { + if m != nil { + return m.EntityGroup + } + return nil +} + +func (m *EntityProto) GetOwner() *User { + if m != nil { + return m.Owner + } + return nil +} + +func (m *EntityProto) GetKind() EntityProto_Kind { + if m != nil && m.Kind != nil { + return *m.Kind + } + return EntityProto_GD_CONTACT +} + +func (m *EntityProto) GetKindUri() string { + if m != nil && m.KindUri != nil { + return *m.KindUri + } + return "" +} + +func (m *EntityProto) GetProperty() []*Property { + if m != nil { + return m.Property + } + return nil +} + +func (m *EntityProto) GetRawProperty() []*Property { + if m != nil { + return m.RawProperty + } + return nil +} + +func (m *EntityProto) GetRank() int32 { + if m != nil && m.Rank != nil { + return *m.Rank + } + return 0 +} + +type CompositeProperty struct { + IndexId *int64 `protobuf:"varint,1,req,name=index_id" json:"index_id,omitempty"` + Value []string `protobuf:"bytes,2,rep,name=value" json:"value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompositeProperty) Reset() { *m = CompositeProperty{} } +func (m *CompositeProperty) String() string { return proto.CompactTextString(m) } +func (*CompositeProperty) ProtoMessage() {} + +func (m *CompositeProperty) GetIndexId() int64 { + if m != nil && m.IndexId != nil { + return *m.IndexId + } + return 0 +} + +func (m *CompositeProperty) GetValue() []string { + if m != nil { + return m.Value + } + return nil +} + +type Index struct { + EntityType *string `protobuf:"bytes,1,req,name=entity_type" json:"entity_type,omitempty"` + Ancestor *bool `protobuf:"varint,5,req,name=ancestor" json:"ancestor,omitempty"` + Property []*Index_Property `protobuf:"group,2,rep,name=Property" json:"property,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Index) Reset() { *m = Index{} } +func (m *Index) String() string { return proto.CompactTextString(m) } +func (*Index) ProtoMessage() {} + +func (m *Index) GetEntityType() string { + if m != nil && m.EntityType != nil { + return *m.EntityType + } + return "" +} + +func (m *Index) GetAncestor() bool { + if m != nil && m.Ancestor != nil { + return *m.Ancestor + } + return false +} + +func (m *Index) GetProperty() []*Index_Property { + if m != nil { + return m.Property + } + return nil +} + +type Index_Property struct { + Name *string `protobuf:"bytes,3,req,name=name" json:"name,omitempty"` + Direction *Index_Property_Direction `protobuf:"varint,4,opt,name=direction,enum=appengine.Index_Property_Direction,def=1" json:"direction,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Index_Property) Reset() { *m = Index_Property{} } +func (m *Index_Property) String() string { return proto.CompactTextString(m) } +func (*Index_Property) ProtoMessage() {} + +const Default_Index_Property_Direction Index_Property_Direction = Index_Property_ASCENDING + +func (m *Index_Property) GetName() string { + if m != nil && m.Name != nil { + return *m.Name + } + return "" +} + +func (m *Index_Property) GetDirection() Index_Property_Direction { + if m != nil && m.Direction != nil { + return *m.Direction + } + return Default_Index_Property_Direction +} + +type CompositeIndex struct { + AppId *string `protobuf:"bytes,1,req,name=app_id" json:"app_id,omitempty"` + Id *int64 `protobuf:"varint,2,req,name=id" json:"id,omitempty"` + Definition *Index `protobuf:"bytes,3,req,name=definition" json:"definition,omitempty"` + State *CompositeIndex_State `protobuf:"varint,4,req,name=state,enum=appengine.CompositeIndex_State" json:"state,omitempty"` + OnlyUseIfRequired *bool `protobuf:"varint,6,opt,name=only_use_if_required,def=0" json:"only_use_if_required,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompositeIndex) Reset() { *m = CompositeIndex{} } +func (m *CompositeIndex) String() string { return proto.CompactTextString(m) } +func (*CompositeIndex) ProtoMessage() {} + +const Default_CompositeIndex_OnlyUseIfRequired bool = false + +func (m *CompositeIndex) GetAppId() string { + if m != nil && m.AppId != nil { + return *m.AppId + } + return "" +} + +func (m *CompositeIndex) GetId() int64 { + if m != nil && m.Id != nil { + return *m.Id + } + return 0 +} + +func (m *CompositeIndex) GetDefinition() *Index { + if m != nil { + return m.Definition + } + return nil +} + +func (m *CompositeIndex) GetState() CompositeIndex_State { + if m != nil && m.State != nil { + return *m.State + } + return CompositeIndex_WRITE_ONLY +} + +func (m *CompositeIndex) GetOnlyUseIfRequired() bool { + if m != nil && m.OnlyUseIfRequired != nil { + return *m.OnlyUseIfRequired + } + return Default_CompositeIndex_OnlyUseIfRequired +} + +type IndexPostfix struct { + IndexValue []*IndexPostfix_IndexValue `protobuf:"bytes,1,rep,name=index_value" json:"index_value,omitempty"` + Key *Reference `protobuf:"bytes,2,opt,name=key" json:"key,omitempty"` + Before *bool `protobuf:"varint,3,opt,name=before,def=1" json:"before,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *IndexPostfix) Reset() { *m = IndexPostfix{} } +func (m *IndexPostfix) String() string { return proto.CompactTextString(m) } +func (*IndexPostfix) ProtoMessage() {} + +const Default_IndexPostfix_Before bool = true + +func (m *IndexPostfix) GetIndexValue() []*IndexPostfix_IndexValue { + if m != nil { + return m.IndexValue + } + return nil +} + +func (m *IndexPostfix) GetKey() *Reference { + if m != nil { + return m.Key + } + return nil +} + +func (m *IndexPostfix) GetBefore() bool { + if m != nil && m.Before != nil { + return *m.Before + } + return Default_IndexPostfix_Before +} + +type IndexPostfix_IndexValue struct { + PropertyName *string `protobuf:"bytes,1,req,name=property_name" json:"property_name,omitempty"` + Value *PropertyValue `protobuf:"bytes,2,req,name=value" json:"value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *IndexPostfix_IndexValue) Reset() { *m = IndexPostfix_IndexValue{} } +func (m *IndexPostfix_IndexValue) String() string { return proto.CompactTextString(m) } +func (*IndexPostfix_IndexValue) ProtoMessage() {} + +func (m *IndexPostfix_IndexValue) GetPropertyName() string { + if m != nil && m.PropertyName != nil { + return *m.PropertyName + } + return "" +} + +func (m *IndexPostfix_IndexValue) GetValue() *PropertyValue { + if m != nil { + return m.Value + } + return nil +} + +type IndexPosition struct { + Key *string `protobuf:"bytes,1,opt,name=key" json:"key,omitempty"` + Before *bool `protobuf:"varint,2,opt,name=before,def=1" json:"before,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *IndexPosition) Reset() { *m = IndexPosition{} } +func (m *IndexPosition) String() string { return proto.CompactTextString(m) } +func (*IndexPosition) ProtoMessage() {} + +const Default_IndexPosition_Before bool = true + +func (m *IndexPosition) GetKey() string { + if m != nil && m.Key != nil { + return *m.Key + } + return "" +} + +func (m *IndexPosition) GetBefore() bool { + if m != nil && m.Before != nil { + return *m.Before + } + return Default_IndexPosition_Before +} + +type Snapshot struct { + Ts *int64 `protobuf:"varint,1,req,name=ts" json:"ts,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Snapshot) Reset() { *m = Snapshot{} } +func (m *Snapshot) String() string { return proto.CompactTextString(m) } +func (*Snapshot) ProtoMessage() {} + +func (m *Snapshot) GetTs() int64 { + if m != nil && m.Ts != nil { + return *m.Ts + } + return 0 +} + +type InternalHeader struct { + Qos *string `protobuf:"bytes,1,opt,name=qos" json:"qos,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *InternalHeader) Reset() { *m = InternalHeader{} } +func (m *InternalHeader) String() string { return proto.CompactTextString(m) } +func (*InternalHeader) ProtoMessage() {} + +func (m *InternalHeader) GetQos() string { + if m != nil && m.Qos != nil { + return *m.Qos + } + return "" +} + +type Transaction struct { + Header *InternalHeader `protobuf:"bytes,4,opt,name=header" json:"header,omitempty"` + Handle *uint64 `protobuf:"fixed64,1,req,name=handle" json:"handle,omitempty"` + App *string `protobuf:"bytes,2,req,name=app" json:"app,omitempty"` + MarkChanges *bool `protobuf:"varint,3,opt,name=mark_changes,def=0" json:"mark_changes,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Transaction) Reset() { *m = Transaction{} } +func (m *Transaction) String() string { return proto.CompactTextString(m) } +func (*Transaction) ProtoMessage() {} + +const Default_Transaction_MarkChanges bool = false + +func (m *Transaction) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *Transaction) GetHandle() uint64 { + if m != nil && m.Handle != nil { + return *m.Handle + } + return 0 +} + +func (m *Transaction) GetApp() string { + if m != nil && m.App != nil { + return *m.App + } + return "" +} + +func (m *Transaction) GetMarkChanges() bool { + if m != nil && m.MarkChanges != nil { + return *m.MarkChanges + } + return Default_Transaction_MarkChanges +} + +type Query struct { + Header *InternalHeader `protobuf:"bytes,39,opt,name=header" json:"header,omitempty"` + App *string `protobuf:"bytes,1,req,name=app" json:"app,omitempty"` + NameSpace *string `protobuf:"bytes,29,opt,name=name_space" json:"name_space,omitempty"` + Kind *string `protobuf:"bytes,3,opt,name=kind" json:"kind,omitempty"` + Ancestor *Reference `protobuf:"bytes,17,opt,name=ancestor" json:"ancestor,omitempty"` + Filter []*Query_Filter `protobuf:"group,4,rep,name=Filter" json:"filter,omitempty"` + SearchQuery *string `protobuf:"bytes,8,opt,name=search_query" json:"search_query,omitempty"` + Order []*Query_Order `protobuf:"group,9,rep,name=Order" json:"order,omitempty"` + Hint *Query_Hint `protobuf:"varint,18,opt,name=hint,enum=appengine.Query_Hint" json:"hint,omitempty"` + Count *int32 `protobuf:"varint,23,opt,name=count" json:"count,omitempty"` + Offset *int32 `protobuf:"varint,12,opt,name=offset,def=0" json:"offset,omitempty"` + Limit *int32 `protobuf:"varint,16,opt,name=limit" json:"limit,omitempty"` + CompiledCursor *CompiledCursor `protobuf:"bytes,30,opt,name=compiled_cursor" json:"compiled_cursor,omitempty"` + EndCompiledCursor *CompiledCursor `protobuf:"bytes,31,opt,name=end_compiled_cursor" json:"end_compiled_cursor,omitempty"` + CompositeIndex []*CompositeIndex `protobuf:"bytes,19,rep,name=composite_index" json:"composite_index,omitempty"` + RequirePerfectPlan *bool `protobuf:"varint,20,opt,name=require_perfect_plan,def=0" json:"require_perfect_plan,omitempty"` + KeysOnly *bool `protobuf:"varint,21,opt,name=keys_only,def=0" json:"keys_only,omitempty"` + Transaction *Transaction `protobuf:"bytes,22,opt,name=transaction" json:"transaction,omitempty"` + Compile *bool `protobuf:"varint,25,opt,name=compile,def=0" json:"compile,omitempty"` + FailoverMs *int64 `protobuf:"varint,26,opt,name=failover_ms" json:"failover_ms,omitempty"` + Strong *bool `protobuf:"varint,32,opt,name=strong" json:"strong,omitempty"` + PropertyName []string `protobuf:"bytes,33,rep,name=property_name" json:"property_name,omitempty"` + GroupByPropertyName []string `protobuf:"bytes,34,rep,name=group_by_property_name" json:"group_by_property_name,omitempty"` + Distinct *bool `protobuf:"varint,24,opt,name=distinct" json:"distinct,omitempty"` + MinSafeTimeSeconds *int64 `protobuf:"varint,35,opt,name=min_safe_time_seconds" json:"min_safe_time_seconds,omitempty"` + SafeReplicaName []string `protobuf:"bytes,36,rep,name=safe_replica_name" json:"safe_replica_name,omitempty"` + PersistOffset *bool `protobuf:"varint,37,opt,name=persist_offset,def=0" json:"persist_offset,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Query) Reset() { *m = Query{} } +func (m *Query) String() string { return proto.CompactTextString(m) } +func (*Query) ProtoMessage() {} + +const Default_Query_Offset int32 = 0 +const Default_Query_RequirePerfectPlan bool = false +const Default_Query_KeysOnly bool = false +const Default_Query_Compile bool = false +const Default_Query_PersistOffset bool = false + +func (m *Query) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *Query) GetApp() string { + if m != nil && m.App != nil { + return *m.App + } + return "" +} + +func (m *Query) GetNameSpace() string { + if m != nil && m.NameSpace != nil { + return *m.NameSpace + } + return "" +} + +func (m *Query) GetKind() string { + if m != nil && m.Kind != nil { + return *m.Kind + } + return "" +} + +func (m *Query) GetAncestor() *Reference { + if m != nil { + return m.Ancestor + } + return nil +} + +func (m *Query) GetFilter() []*Query_Filter { + if m != nil { + return m.Filter + } + return nil +} + +func (m *Query) GetSearchQuery() string { + if m != nil && m.SearchQuery != nil { + return *m.SearchQuery + } + return "" +} + +func (m *Query) GetOrder() []*Query_Order { + if m != nil { + return m.Order + } + return nil +} + +func (m *Query) GetHint() Query_Hint { + if m != nil && m.Hint != nil { + return *m.Hint + } + return Query_ORDER_FIRST +} + +func (m *Query) GetCount() int32 { + if m != nil && m.Count != nil { + return *m.Count + } + return 0 +} + +func (m *Query) GetOffset() int32 { + if m != nil && m.Offset != nil { + return *m.Offset + } + return Default_Query_Offset +} + +func (m *Query) GetLimit() int32 { + if m != nil && m.Limit != nil { + return *m.Limit + } + return 0 +} + +func (m *Query) GetCompiledCursor() *CompiledCursor { + if m != nil { + return m.CompiledCursor + } + return nil +} + +func (m *Query) GetEndCompiledCursor() *CompiledCursor { + if m != nil { + return m.EndCompiledCursor + } + return nil +} + +func (m *Query) GetCompositeIndex() []*CompositeIndex { + if m != nil { + return m.CompositeIndex + } + return nil +} + +func (m *Query) GetRequirePerfectPlan() bool { + if m != nil && m.RequirePerfectPlan != nil { + return *m.RequirePerfectPlan + } + return Default_Query_RequirePerfectPlan +} + +func (m *Query) GetKeysOnly() bool { + if m != nil && m.KeysOnly != nil { + return *m.KeysOnly + } + return Default_Query_KeysOnly +} + +func (m *Query) GetTransaction() *Transaction { + if m != nil { + return m.Transaction + } + return nil +} + +func (m *Query) GetCompile() bool { + if m != nil && m.Compile != nil { + return *m.Compile + } + return Default_Query_Compile +} + +func (m *Query) GetFailoverMs() int64 { + if m != nil && m.FailoverMs != nil { + return *m.FailoverMs + } + return 0 +} + +func (m *Query) GetStrong() bool { + if m != nil && m.Strong != nil { + return *m.Strong + } + return false +} + +func (m *Query) GetPropertyName() []string { + if m != nil { + return m.PropertyName + } + return nil +} + +func (m *Query) GetGroupByPropertyName() []string { + if m != nil { + return m.GroupByPropertyName + } + return nil +} + +func (m *Query) GetDistinct() bool { + if m != nil && m.Distinct != nil { + return *m.Distinct + } + return false +} + +func (m *Query) GetMinSafeTimeSeconds() int64 { + if m != nil && m.MinSafeTimeSeconds != nil { + return *m.MinSafeTimeSeconds + } + return 0 +} + +func (m *Query) GetSafeReplicaName() []string { + if m != nil { + return m.SafeReplicaName + } + return nil +} + +func (m *Query) GetPersistOffset() bool { + if m != nil && m.PersistOffset != nil { + return *m.PersistOffset + } + return Default_Query_PersistOffset +} + +type Query_Filter struct { + Op *Query_Filter_Operator `protobuf:"varint,6,req,name=op,enum=appengine.Query_Filter_Operator" json:"op,omitempty"` + Property []*Property `protobuf:"bytes,14,rep,name=property" json:"property,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Query_Filter) Reset() { *m = Query_Filter{} } +func (m *Query_Filter) String() string { return proto.CompactTextString(m) } +func (*Query_Filter) ProtoMessage() {} + +func (m *Query_Filter) GetOp() Query_Filter_Operator { + if m != nil && m.Op != nil { + return *m.Op + } + return Query_Filter_LESS_THAN +} + +func (m *Query_Filter) GetProperty() []*Property { + if m != nil { + return m.Property + } + return nil +} + +type Query_Order struct { + Property *string `protobuf:"bytes,10,req,name=property" json:"property,omitempty"` + Direction *Query_Order_Direction `protobuf:"varint,11,opt,name=direction,enum=appengine.Query_Order_Direction,def=1" json:"direction,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Query_Order) Reset() { *m = Query_Order{} } +func (m *Query_Order) String() string { return proto.CompactTextString(m) } +func (*Query_Order) ProtoMessage() {} + +const Default_Query_Order_Direction Query_Order_Direction = Query_Order_ASCENDING + +func (m *Query_Order) GetProperty() string { + if m != nil && m.Property != nil { + return *m.Property + } + return "" +} + +func (m *Query_Order) GetDirection() Query_Order_Direction { + if m != nil && m.Direction != nil { + return *m.Direction + } + return Default_Query_Order_Direction +} + +type CompiledQuery struct { + Primaryscan *CompiledQuery_PrimaryScan `protobuf:"group,1,req,name=PrimaryScan" json:"primaryscan,omitempty"` + Mergejoinscan []*CompiledQuery_MergeJoinScan `protobuf:"group,7,rep,name=MergeJoinScan" json:"mergejoinscan,omitempty"` + IndexDef *Index `protobuf:"bytes,21,opt,name=index_def" json:"index_def,omitempty"` + Offset *int32 `protobuf:"varint,10,opt,name=offset,def=0" json:"offset,omitempty"` + Limit *int32 `protobuf:"varint,11,opt,name=limit" json:"limit,omitempty"` + KeysOnly *bool `protobuf:"varint,12,req,name=keys_only" json:"keys_only,omitempty"` + PropertyName []string `protobuf:"bytes,24,rep,name=property_name" json:"property_name,omitempty"` + DistinctInfixSize *int32 `protobuf:"varint,25,opt,name=distinct_infix_size" json:"distinct_infix_size,omitempty"` + Entityfilter *CompiledQuery_EntityFilter `protobuf:"group,13,opt,name=EntityFilter" json:"entityfilter,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompiledQuery) Reset() { *m = CompiledQuery{} } +func (m *CompiledQuery) String() string { return proto.CompactTextString(m) } +func (*CompiledQuery) ProtoMessage() {} + +const Default_CompiledQuery_Offset int32 = 0 + +func (m *CompiledQuery) GetPrimaryscan() *CompiledQuery_PrimaryScan { + if m != nil { + return m.Primaryscan + } + return nil +} + +func (m *CompiledQuery) GetMergejoinscan() []*CompiledQuery_MergeJoinScan { + if m != nil { + return m.Mergejoinscan + } + return nil +} + +func (m *CompiledQuery) GetIndexDef() *Index { + if m != nil { + return m.IndexDef + } + return nil +} + +func (m *CompiledQuery) GetOffset() int32 { + if m != nil && m.Offset != nil { + return *m.Offset + } + return Default_CompiledQuery_Offset +} + +func (m *CompiledQuery) GetLimit() int32 { + if m != nil && m.Limit != nil { + return *m.Limit + } + return 0 +} + +func (m *CompiledQuery) GetKeysOnly() bool { + if m != nil && m.KeysOnly != nil { + return *m.KeysOnly + } + return false +} + +func (m *CompiledQuery) GetPropertyName() []string { + if m != nil { + return m.PropertyName + } + return nil +} + +func (m *CompiledQuery) GetDistinctInfixSize() int32 { + if m != nil && m.DistinctInfixSize != nil { + return *m.DistinctInfixSize + } + return 0 +} + +func (m *CompiledQuery) GetEntityfilter() *CompiledQuery_EntityFilter { + if m != nil { + return m.Entityfilter + } + return nil +} + +type CompiledQuery_PrimaryScan struct { + IndexName *string `protobuf:"bytes,2,opt,name=index_name" json:"index_name,omitempty"` + StartKey *string `protobuf:"bytes,3,opt,name=start_key" json:"start_key,omitempty"` + StartInclusive *bool `protobuf:"varint,4,opt,name=start_inclusive" json:"start_inclusive,omitempty"` + EndKey *string `protobuf:"bytes,5,opt,name=end_key" json:"end_key,omitempty"` + EndInclusive *bool `protobuf:"varint,6,opt,name=end_inclusive" json:"end_inclusive,omitempty"` + StartPostfixValue []string `protobuf:"bytes,22,rep,name=start_postfix_value" json:"start_postfix_value,omitempty"` + EndPostfixValue []string `protobuf:"bytes,23,rep,name=end_postfix_value" json:"end_postfix_value,omitempty"` + EndUnappliedLogTimestampUs *int64 `protobuf:"varint,19,opt,name=end_unapplied_log_timestamp_us" json:"end_unapplied_log_timestamp_us,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompiledQuery_PrimaryScan) Reset() { *m = CompiledQuery_PrimaryScan{} } +func (m *CompiledQuery_PrimaryScan) String() string { return proto.CompactTextString(m) } +func (*CompiledQuery_PrimaryScan) ProtoMessage() {} + +func (m *CompiledQuery_PrimaryScan) GetIndexName() string { + if m != nil && m.IndexName != nil { + return *m.IndexName + } + return "" +} + +func (m *CompiledQuery_PrimaryScan) GetStartKey() string { + if m != nil && m.StartKey != nil { + return *m.StartKey + } + return "" +} + +func (m *CompiledQuery_PrimaryScan) GetStartInclusive() bool { + if m != nil && m.StartInclusive != nil { + return *m.StartInclusive + } + return false +} + +func (m *CompiledQuery_PrimaryScan) GetEndKey() string { + if m != nil && m.EndKey != nil { + return *m.EndKey + } + return "" +} + +func (m *CompiledQuery_PrimaryScan) GetEndInclusive() bool { + if m != nil && m.EndInclusive != nil { + return *m.EndInclusive + } + return false +} + +func (m *CompiledQuery_PrimaryScan) GetStartPostfixValue() []string { + if m != nil { + return m.StartPostfixValue + } + return nil +} + +func (m *CompiledQuery_PrimaryScan) GetEndPostfixValue() []string { + if m != nil { + return m.EndPostfixValue + } + return nil +} + +func (m *CompiledQuery_PrimaryScan) GetEndUnappliedLogTimestampUs() int64 { + if m != nil && m.EndUnappliedLogTimestampUs != nil { + return *m.EndUnappliedLogTimestampUs + } + return 0 +} + +type CompiledQuery_MergeJoinScan struct { + IndexName *string `protobuf:"bytes,8,req,name=index_name" json:"index_name,omitempty"` + PrefixValue []string `protobuf:"bytes,9,rep,name=prefix_value" json:"prefix_value,omitempty"` + ValuePrefix *bool `protobuf:"varint,20,opt,name=value_prefix,def=0" json:"value_prefix,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompiledQuery_MergeJoinScan) Reset() { *m = CompiledQuery_MergeJoinScan{} } +func (m *CompiledQuery_MergeJoinScan) String() string { return proto.CompactTextString(m) } +func (*CompiledQuery_MergeJoinScan) ProtoMessage() {} + +const Default_CompiledQuery_MergeJoinScan_ValuePrefix bool = false + +func (m *CompiledQuery_MergeJoinScan) GetIndexName() string { + if m != nil && m.IndexName != nil { + return *m.IndexName + } + return "" +} + +func (m *CompiledQuery_MergeJoinScan) GetPrefixValue() []string { + if m != nil { + return m.PrefixValue + } + return nil +} + +func (m *CompiledQuery_MergeJoinScan) GetValuePrefix() bool { + if m != nil && m.ValuePrefix != nil { + return *m.ValuePrefix + } + return Default_CompiledQuery_MergeJoinScan_ValuePrefix +} + +type CompiledQuery_EntityFilter struct { + Distinct *bool `protobuf:"varint,14,opt,name=distinct,def=0" json:"distinct,omitempty"` + Kind *string `protobuf:"bytes,17,opt,name=kind" json:"kind,omitempty"` + Ancestor *Reference `protobuf:"bytes,18,opt,name=ancestor" json:"ancestor,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompiledQuery_EntityFilter) Reset() { *m = CompiledQuery_EntityFilter{} } +func (m *CompiledQuery_EntityFilter) String() string { return proto.CompactTextString(m) } +func (*CompiledQuery_EntityFilter) ProtoMessage() {} + +const Default_CompiledQuery_EntityFilter_Distinct bool = false + +func (m *CompiledQuery_EntityFilter) GetDistinct() bool { + if m != nil && m.Distinct != nil { + return *m.Distinct + } + return Default_CompiledQuery_EntityFilter_Distinct +} + +func (m *CompiledQuery_EntityFilter) GetKind() string { + if m != nil && m.Kind != nil { + return *m.Kind + } + return "" +} + +func (m *CompiledQuery_EntityFilter) GetAncestor() *Reference { + if m != nil { + return m.Ancestor + } + return nil +} + +type CompiledCursor struct { + Position *CompiledCursor_Position `protobuf:"group,2,opt,name=Position" json:"position,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompiledCursor) Reset() { *m = CompiledCursor{} } +func (m *CompiledCursor) String() string { return proto.CompactTextString(m) } +func (*CompiledCursor) ProtoMessage() {} + +func (m *CompiledCursor) GetPosition() *CompiledCursor_Position { + if m != nil { + return m.Position + } + return nil +} + +type CompiledCursor_Position struct { + StartKey *string `protobuf:"bytes,27,opt,name=start_key" json:"start_key,omitempty"` + Indexvalue []*CompiledCursor_Position_IndexValue `protobuf:"group,29,rep,name=IndexValue" json:"indexvalue,omitempty"` + Key *Reference `protobuf:"bytes,32,opt,name=key" json:"key,omitempty"` + StartInclusive *bool `protobuf:"varint,28,opt,name=start_inclusive,def=1" json:"start_inclusive,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompiledCursor_Position) Reset() { *m = CompiledCursor_Position{} } +func (m *CompiledCursor_Position) String() string { return proto.CompactTextString(m) } +func (*CompiledCursor_Position) ProtoMessage() {} + +const Default_CompiledCursor_Position_StartInclusive bool = true + +func (m *CompiledCursor_Position) GetStartKey() string { + if m != nil && m.StartKey != nil { + return *m.StartKey + } + return "" +} + +func (m *CompiledCursor_Position) GetIndexvalue() []*CompiledCursor_Position_IndexValue { + if m != nil { + return m.Indexvalue + } + return nil +} + +func (m *CompiledCursor_Position) GetKey() *Reference { + if m != nil { + return m.Key + } + return nil +} + +func (m *CompiledCursor_Position) GetStartInclusive() bool { + if m != nil && m.StartInclusive != nil { + return *m.StartInclusive + } + return Default_CompiledCursor_Position_StartInclusive +} + +type CompiledCursor_Position_IndexValue struct { + Property *string `protobuf:"bytes,30,opt,name=property" json:"property,omitempty"` + Value *PropertyValue `protobuf:"bytes,31,req,name=value" json:"value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompiledCursor_Position_IndexValue) Reset() { *m = CompiledCursor_Position_IndexValue{} } +func (m *CompiledCursor_Position_IndexValue) String() string { return proto.CompactTextString(m) } +func (*CompiledCursor_Position_IndexValue) ProtoMessage() {} + +func (m *CompiledCursor_Position_IndexValue) GetProperty() string { + if m != nil && m.Property != nil { + return *m.Property + } + return "" +} + +func (m *CompiledCursor_Position_IndexValue) GetValue() *PropertyValue { + if m != nil { + return m.Value + } + return nil +} + +type Cursor struct { + Cursor *uint64 `protobuf:"fixed64,1,req,name=cursor" json:"cursor,omitempty"` + App *string `protobuf:"bytes,2,opt,name=app" json:"app,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Cursor) Reset() { *m = Cursor{} } +func (m *Cursor) String() string { return proto.CompactTextString(m) } +func (*Cursor) ProtoMessage() {} + +func (m *Cursor) GetCursor() uint64 { + if m != nil && m.Cursor != nil { + return *m.Cursor + } + return 0 +} + +func (m *Cursor) GetApp() string { + if m != nil && m.App != nil { + return *m.App + } + return "" +} + +type Error struct { + XXX_unrecognized []byte `json:"-"` +} + +func (m *Error) Reset() { *m = Error{} } +func (m *Error) String() string { return proto.CompactTextString(m) } +func (*Error) ProtoMessage() {} + +type Cost struct { + IndexWrites *int32 `protobuf:"varint,1,opt,name=index_writes" json:"index_writes,omitempty"` + IndexWriteBytes *int32 `protobuf:"varint,2,opt,name=index_write_bytes" json:"index_write_bytes,omitempty"` + EntityWrites *int32 `protobuf:"varint,3,opt,name=entity_writes" json:"entity_writes,omitempty"` + EntityWriteBytes *int32 `protobuf:"varint,4,opt,name=entity_write_bytes" json:"entity_write_bytes,omitempty"` + Commitcost *Cost_CommitCost `protobuf:"group,5,opt,name=CommitCost" json:"commitcost,omitempty"` + ApproximateStorageDelta *int32 `protobuf:"varint,8,opt,name=approximate_storage_delta" json:"approximate_storage_delta,omitempty"` + IdSequenceUpdates *int32 `protobuf:"varint,9,opt,name=id_sequence_updates" json:"id_sequence_updates,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Cost) Reset() { *m = Cost{} } +func (m *Cost) String() string { return proto.CompactTextString(m) } +func (*Cost) ProtoMessage() {} + +func (m *Cost) GetIndexWrites() int32 { + if m != nil && m.IndexWrites != nil { + return *m.IndexWrites + } + return 0 +} + +func (m *Cost) GetIndexWriteBytes() int32 { + if m != nil && m.IndexWriteBytes != nil { + return *m.IndexWriteBytes + } + return 0 +} + +func (m *Cost) GetEntityWrites() int32 { + if m != nil && m.EntityWrites != nil { + return *m.EntityWrites + } + return 0 +} + +func (m *Cost) GetEntityWriteBytes() int32 { + if m != nil && m.EntityWriteBytes != nil { + return *m.EntityWriteBytes + } + return 0 +} + +func (m *Cost) GetCommitcost() *Cost_CommitCost { + if m != nil { + return m.Commitcost + } + return nil +} + +func (m *Cost) GetApproximateStorageDelta() int32 { + if m != nil && m.ApproximateStorageDelta != nil { + return *m.ApproximateStorageDelta + } + return 0 +} + +func (m *Cost) GetIdSequenceUpdates() int32 { + if m != nil && m.IdSequenceUpdates != nil { + return *m.IdSequenceUpdates + } + return 0 +} + +type Cost_CommitCost struct { + RequestedEntityPuts *int32 `protobuf:"varint,6,opt,name=requested_entity_puts" json:"requested_entity_puts,omitempty"` + RequestedEntityDeletes *int32 `protobuf:"varint,7,opt,name=requested_entity_deletes" json:"requested_entity_deletes,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Cost_CommitCost) Reset() { *m = Cost_CommitCost{} } +func (m *Cost_CommitCost) String() string { return proto.CompactTextString(m) } +func (*Cost_CommitCost) ProtoMessage() {} + +func (m *Cost_CommitCost) GetRequestedEntityPuts() int32 { + if m != nil && m.RequestedEntityPuts != nil { + return *m.RequestedEntityPuts + } + return 0 +} + +func (m *Cost_CommitCost) GetRequestedEntityDeletes() int32 { + if m != nil && m.RequestedEntityDeletes != nil { + return *m.RequestedEntityDeletes + } + return 0 +} + +type GetRequest struct { + Header *InternalHeader `protobuf:"bytes,6,opt,name=header" json:"header,omitempty"` + Key []*Reference `protobuf:"bytes,1,rep,name=key" json:"key,omitempty"` + Transaction *Transaction `protobuf:"bytes,2,opt,name=transaction" json:"transaction,omitempty"` + FailoverMs *int64 `protobuf:"varint,3,opt,name=failover_ms" json:"failover_ms,omitempty"` + Strong *bool `protobuf:"varint,4,opt,name=strong" json:"strong,omitempty"` + AllowDeferred *bool `protobuf:"varint,5,opt,name=allow_deferred,def=0" json:"allow_deferred,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *GetRequest) Reset() { *m = GetRequest{} } +func (m *GetRequest) String() string { return proto.CompactTextString(m) } +func (*GetRequest) ProtoMessage() {} + +const Default_GetRequest_AllowDeferred bool = false + +func (m *GetRequest) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *GetRequest) GetKey() []*Reference { + if m != nil { + return m.Key + } + return nil +} + +func (m *GetRequest) GetTransaction() *Transaction { + if m != nil { + return m.Transaction + } + return nil +} + +func (m *GetRequest) GetFailoverMs() int64 { + if m != nil && m.FailoverMs != nil { + return *m.FailoverMs + } + return 0 +} + +func (m *GetRequest) GetStrong() bool { + if m != nil && m.Strong != nil { + return *m.Strong + } + return false +} + +func (m *GetRequest) GetAllowDeferred() bool { + if m != nil && m.AllowDeferred != nil { + return *m.AllowDeferred + } + return Default_GetRequest_AllowDeferred +} + +type GetResponse struct { + Entity []*GetResponse_Entity `protobuf:"group,1,rep,name=Entity" json:"entity,omitempty"` + Deferred []*Reference `protobuf:"bytes,5,rep,name=deferred" json:"deferred,omitempty"` + InOrder *bool `protobuf:"varint,6,opt,name=in_order,def=1" json:"in_order,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *GetResponse) Reset() { *m = GetResponse{} } +func (m *GetResponse) String() string { return proto.CompactTextString(m) } +func (*GetResponse) ProtoMessage() {} + +const Default_GetResponse_InOrder bool = true + +func (m *GetResponse) GetEntity() []*GetResponse_Entity { + if m != nil { + return m.Entity + } + return nil +} + +func (m *GetResponse) GetDeferred() []*Reference { + if m != nil { + return m.Deferred + } + return nil +} + +func (m *GetResponse) GetInOrder() bool { + if m != nil && m.InOrder != nil { + return *m.InOrder + } + return Default_GetResponse_InOrder +} + +type GetResponse_Entity struct { + Entity *EntityProto `protobuf:"bytes,2,opt,name=entity" json:"entity,omitempty"` + Key *Reference `protobuf:"bytes,4,opt,name=key" json:"key,omitempty"` + Version *int64 `protobuf:"varint,3,opt,name=version" json:"version,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *GetResponse_Entity) Reset() { *m = GetResponse_Entity{} } +func (m *GetResponse_Entity) String() string { return proto.CompactTextString(m) } +func (*GetResponse_Entity) ProtoMessage() {} + +func (m *GetResponse_Entity) GetEntity() *EntityProto { + if m != nil { + return m.Entity + } + return nil +} + +func (m *GetResponse_Entity) GetKey() *Reference { + if m != nil { + return m.Key + } + return nil +} + +func (m *GetResponse_Entity) GetVersion() int64 { + if m != nil && m.Version != nil { + return *m.Version + } + return 0 +} + +type PutRequest struct { + Header *InternalHeader `protobuf:"bytes,11,opt,name=header" json:"header,omitempty"` + Entity []*EntityProto `protobuf:"bytes,1,rep,name=entity" json:"entity,omitempty"` + Transaction *Transaction `protobuf:"bytes,2,opt,name=transaction" json:"transaction,omitempty"` + CompositeIndex []*CompositeIndex `protobuf:"bytes,3,rep,name=composite_index" json:"composite_index,omitempty"` + Trusted *bool `protobuf:"varint,4,opt,name=trusted,def=0" json:"trusted,omitempty"` + Force *bool `protobuf:"varint,7,opt,name=force,def=0" json:"force,omitempty"` + MarkChanges *bool `protobuf:"varint,8,opt,name=mark_changes,def=0" json:"mark_changes,omitempty"` + Snapshot []*Snapshot `protobuf:"bytes,9,rep,name=snapshot" json:"snapshot,omitempty"` + AutoIdPolicy *PutRequest_AutoIdPolicy `protobuf:"varint,10,opt,name=auto_id_policy,enum=appengine.PutRequest_AutoIdPolicy,def=0" json:"auto_id_policy,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *PutRequest) Reset() { *m = PutRequest{} } +func (m *PutRequest) String() string { return proto.CompactTextString(m) } +func (*PutRequest) ProtoMessage() {} + +const Default_PutRequest_Trusted bool = false +const Default_PutRequest_Force bool = false +const Default_PutRequest_MarkChanges bool = false +const Default_PutRequest_AutoIdPolicy PutRequest_AutoIdPolicy = PutRequest_CURRENT + +func (m *PutRequest) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *PutRequest) GetEntity() []*EntityProto { + if m != nil { + return m.Entity + } + return nil +} + +func (m *PutRequest) GetTransaction() *Transaction { + if m != nil { + return m.Transaction + } + return nil +} + +func (m *PutRequest) GetCompositeIndex() []*CompositeIndex { + if m != nil { + return m.CompositeIndex + } + return nil +} + +func (m *PutRequest) GetTrusted() bool { + if m != nil && m.Trusted != nil { + return *m.Trusted + } + return Default_PutRequest_Trusted +} + +func (m *PutRequest) GetForce() bool { + if m != nil && m.Force != nil { + return *m.Force + } + return Default_PutRequest_Force +} + +func (m *PutRequest) GetMarkChanges() bool { + if m != nil && m.MarkChanges != nil { + return *m.MarkChanges + } + return Default_PutRequest_MarkChanges +} + +func (m *PutRequest) GetSnapshot() []*Snapshot { + if m != nil { + return m.Snapshot + } + return nil +} + +func (m *PutRequest) GetAutoIdPolicy() PutRequest_AutoIdPolicy { + if m != nil && m.AutoIdPolicy != nil { + return *m.AutoIdPolicy + } + return Default_PutRequest_AutoIdPolicy +} + +type PutResponse struct { + Key []*Reference `protobuf:"bytes,1,rep,name=key" json:"key,omitempty"` + Cost *Cost `protobuf:"bytes,2,opt,name=cost" json:"cost,omitempty"` + Version []int64 `protobuf:"varint,3,rep,name=version" json:"version,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *PutResponse) Reset() { *m = PutResponse{} } +func (m *PutResponse) String() string { return proto.CompactTextString(m) } +func (*PutResponse) ProtoMessage() {} + +func (m *PutResponse) GetKey() []*Reference { + if m != nil { + return m.Key + } + return nil +} + +func (m *PutResponse) GetCost() *Cost { + if m != nil { + return m.Cost + } + return nil +} + +func (m *PutResponse) GetVersion() []int64 { + if m != nil { + return m.Version + } + return nil +} + +type TouchRequest struct { + Header *InternalHeader `protobuf:"bytes,10,opt,name=header" json:"header,omitempty"` + Key []*Reference `protobuf:"bytes,1,rep,name=key" json:"key,omitempty"` + CompositeIndex []*CompositeIndex `protobuf:"bytes,2,rep,name=composite_index" json:"composite_index,omitempty"` + Force *bool `protobuf:"varint,3,opt,name=force,def=0" json:"force,omitempty"` + Snapshot []*Snapshot `protobuf:"bytes,9,rep,name=snapshot" json:"snapshot,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *TouchRequest) Reset() { *m = TouchRequest{} } +func (m *TouchRequest) String() string { return proto.CompactTextString(m) } +func (*TouchRequest) ProtoMessage() {} + +const Default_TouchRequest_Force bool = false + +func (m *TouchRequest) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *TouchRequest) GetKey() []*Reference { + if m != nil { + return m.Key + } + return nil +} + +func (m *TouchRequest) GetCompositeIndex() []*CompositeIndex { + if m != nil { + return m.CompositeIndex + } + return nil +} + +func (m *TouchRequest) GetForce() bool { + if m != nil && m.Force != nil { + return *m.Force + } + return Default_TouchRequest_Force +} + +func (m *TouchRequest) GetSnapshot() []*Snapshot { + if m != nil { + return m.Snapshot + } + return nil +} + +type TouchResponse struct { + Cost *Cost `protobuf:"bytes,1,opt,name=cost" json:"cost,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *TouchResponse) Reset() { *m = TouchResponse{} } +func (m *TouchResponse) String() string { return proto.CompactTextString(m) } +func (*TouchResponse) ProtoMessage() {} + +func (m *TouchResponse) GetCost() *Cost { + if m != nil { + return m.Cost + } + return nil +} + +type DeleteRequest struct { + Header *InternalHeader `protobuf:"bytes,10,opt,name=header" json:"header,omitempty"` + Key []*Reference `protobuf:"bytes,6,rep,name=key" json:"key,omitempty"` + Transaction *Transaction `protobuf:"bytes,5,opt,name=transaction" json:"transaction,omitempty"` + Trusted *bool `protobuf:"varint,4,opt,name=trusted,def=0" json:"trusted,omitempty"` + Force *bool `protobuf:"varint,7,opt,name=force,def=0" json:"force,omitempty"` + MarkChanges *bool `protobuf:"varint,8,opt,name=mark_changes,def=0" json:"mark_changes,omitempty"` + Snapshot []*Snapshot `protobuf:"bytes,9,rep,name=snapshot" json:"snapshot,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *DeleteRequest) Reset() { *m = DeleteRequest{} } +func (m *DeleteRequest) String() string { return proto.CompactTextString(m) } +func (*DeleteRequest) ProtoMessage() {} + +const Default_DeleteRequest_Trusted bool = false +const Default_DeleteRequest_Force bool = false +const Default_DeleteRequest_MarkChanges bool = false + +func (m *DeleteRequest) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *DeleteRequest) GetKey() []*Reference { + if m != nil { + return m.Key + } + return nil +} + +func (m *DeleteRequest) GetTransaction() *Transaction { + if m != nil { + return m.Transaction + } + return nil +} + +func (m *DeleteRequest) GetTrusted() bool { + if m != nil && m.Trusted != nil { + return *m.Trusted + } + return Default_DeleteRequest_Trusted +} + +func (m *DeleteRequest) GetForce() bool { + if m != nil && m.Force != nil { + return *m.Force + } + return Default_DeleteRequest_Force +} + +func (m *DeleteRequest) GetMarkChanges() bool { + if m != nil && m.MarkChanges != nil { + return *m.MarkChanges + } + return Default_DeleteRequest_MarkChanges +} + +func (m *DeleteRequest) GetSnapshot() []*Snapshot { + if m != nil { + return m.Snapshot + } + return nil +} + +type DeleteResponse struct { + Cost *Cost `protobuf:"bytes,1,opt,name=cost" json:"cost,omitempty"` + Version []int64 `protobuf:"varint,3,rep,name=version" json:"version,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *DeleteResponse) Reset() { *m = DeleteResponse{} } +func (m *DeleteResponse) String() string { return proto.CompactTextString(m) } +func (*DeleteResponse) ProtoMessage() {} + +func (m *DeleteResponse) GetCost() *Cost { + if m != nil { + return m.Cost + } + return nil +} + +func (m *DeleteResponse) GetVersion() []int64 { + if m != nil { + return m.Version + } + return nil +} + +type NextRequest struct { + Header *InternalHeader `protobuf:"bytes,5,opt,name=header" json:"header,omitempty"` + Cursor *Cursor `protobuf:"bytes,1,req,name=cursor" json:"cursor,omitempty"` + Count *int32 `protobuf:"varint,2,opt,name=count" json:"count,omitempty"` + Offset *int32 `protobuf:"varint,4,opt,name=offset,def=0" json:"offset,omitempty"` + Compile *bool `protobuf:"varint,3,opt,name=compile,def=0" json:"compile,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *NextRequest) Reset() { *m = NextRequest{} } +func (m *NextRequest) String() string { return proto.CompactTextString(m) } +func (*NextRequest) ProtoMessage() {} + +const Default_NextRequest_Offset int32 = 0 +const Default_NextRequest_Compile bool = false + +func (m *NextRequest) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *NextRequest) GetCursor() *Cursor { + if m != nil { + return m.Cursor + } + return nil +} + +func (m *NextRequest) GetCount() int32 { + if m != nil && m.Count != nil { + return *m.Count + } + return 0 +} + +func (m *NextRequest) GetOffset() int32 { + if m != nil && m.Offset != nil { + return *m.Offset + } + return Default_NextRequest_Offset +} + +func (m *NextRequest) GetCompile() bool { + if m != nil && m.Compile != nil { + return *m.Compile + } + return Default_NextRequest_Compile +} + +type QueryResult struct { + Cursor *Cursor `protobuf:"bytes,1,opt,name=cursor" json:"cursor,omitempty"` + Result []*EntityProto `protobuf:"bytes,2,rep,name=result" json:"result,omitempty"` + SkippedResults *int32 `protobuf:"varint,7,opt,name=skipped_results" json:"skipped_results,omitempty"` + MoreResults *bool `protobuf:"varint,3,req,name=more_results" json:"more_results,omitempty"` + KeysOnly *bool `protobuf:"varint,4,opt,name=keys_only" json:"keys_only,omitempty"` + IndexOnly *bool `protobuf:"varint,9,opt,name=index_only" json:"index_only,omitempty"` + SmallOps *bool `protobuf:"varint,10,opt,name=small_ops" json:"small_ops,omitempty"` + CompiledQuery *CompiledQuery `protobuf:"bytes,5,opt,name=compiled_query" json:"compiled_query,omitempty"` + CompiledCursor *CompiledCursor `protobuf:"bytes,6,opt,name=compiled_cursor" json:"compiled_cursor,omitempty"` + Index []*CompositeIndex `protobuf:"bytes,8,rep,name=index" json:"index,omitempty"` + Version []int64 `protobuf:"varint,11,rep,name=version" json:"version,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *QueryResult) Reset() { *m = QueryResult{} } +func (m *QueryResult) String() string { return proto.CompactTextString(m) } +func (*QueryResult) ProtoMessage() {} + +func (m *QueryResult) GetCursor() *Cursor { + if m != nil { + return m.Cursor + } + return nil +} + +func (m *QueryResult) GetResult() []*EntityProto { + if m != nil { + return m.Result + } + return nil +} + +func (m *QueryResult) GetSkippedResults() int32 { + if m != nil && m.SkippedResults != nil { + return *m.SkippedResults + } + return 0 +} + +func (m *QueryResult) GetMoreResults() bool { + if m != nil && m.MoreResults != nil { + return *m.MoreResults + } + return false +} + +func (m *QueryResult) GetKeysOnly() bool { + if m != nil && m.KeysOnly != nil { + return *m.KeysOnly + } + return false +} + +func (m *QueryResult) GetIndexOnly() bool { + if m != nil && m.IndexOnly != nil { + return *m.IndexOnly + } + return false +} + +func (m *QueryResult) GetSmallOps() bool { + if m != nil && m.SmallOps != nil { + return *m.SmallOps + } + return false +} + +func (m *QueryResult) GetCompiledQuery() *CompiledQuery { + if m != nil { + return m.CompiledQuery + } + return nil +} + +func (m *QueryResult) GetCompiledCursor() *CompiledCursor { + if m != nil { + return m.CompiledCursor + } + return nil +} + +func (m *QueryResult) GetIndex() []*CompositeIndex { + if m != nil { + return m.Index + } + return nil +} + +func (m *QueryResult) GetVersion() []int64 { + if m != nil { + return m.Version + } + return nil +} + +type AllocateIdsRequest struct { + Header *InternalHeader `protobuf:"bytes,4,opt,name=header" json:"header,omitempty"` + ModelKey *Reference `protobuf:"bytes,1,opt,name=model_key" json:"model_key,omitempty"` + Size *int64 `protobuf:"varint,2,opt,name=size" json:"size,omitempty"` + Max *int64 `protobuf:"varint,3,opt,name=max" json:"max,omitempty"` + Reserve []*Reference `protobuf:"bytes,5,rep,name=reserve" json:"reserve,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *AllocateIdsRequest) Reset() { *m = AllocateIdsRequest{} } +func (m *AllocateIdsRequest) String() string { return proto.CompactTextString(m) } +func (*AllocateIdsRequest) ProtoMessage() {} + +func (m *AllocateIdsRequest) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *AllocateIdsRequest) GetModelKey() *Reference { + if m != nil { + return m.ModelKey + } + return nil +} + +func (m *AllocateIdsRequest) GetSize() int64 { + if m != nil && m.Size != nil { + return *m.Size + } + return 0 +} + +func (m *AllocateIdsRequest) GetMax() int64 { + if m != nil && m.Max != nil { + return *m.Max + } + return 0 +} + +func (m *AllocateIdsRequest) GetReserve() []*Reference { + if m != nil { + return m.Reserve + } + return nil +} + +type AllocateIdsResponse struct { + Start *int64 `protobuf:"varint,1,req,name=start" json:"start,omitempty"` + End *int64 `protobuf:"varint,2,req,name=end" json:"end,omitempty"` + Cost *Cost `protobuf:"bytes,3,opt,name=cost" json:"cost,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *AllocateIdsResponse) Reset() { *m = AllocateIdsResponse{} } +func (m *AllocateIdsResponse) String() string { return proto.CompactTextString(m) } +func (*AllocateIdsResponse) ProtoMessage() {} + +func (m *AllocateIdsResponse) GetStart() int64 { + if m != nil && m.Start != nil { + return *m.Start + } + return 0 +} + +func (m *AllocateIdsResponse) GetEnd() int64 { + if m != nil && m.End != nil { + return *m.End + } + return 0 +} + +func (m *AllocateIdsResponse) GetCost() *Cost { + if m != nil { + return m.Cost + } + return nil +} + +type CompositeIndices struct { + Index []*CompositeIndex `protobuf:"bytes,1,rep,name=index" json:"index,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CompositeIndices) Reset() { *m = CompositeIndices{} } +func (m *CompositeIndices) String() string { return proto.CompactTextString(m) } +func (*CompositeIndices) ProtoMessage() {} + +func (m *CompositeIndices) GetIndex() []*CompositeIndex { + if m != nil { + return m.Index + } + return nil +} + +type AddActionsRequest struct { + Header *InternalHeader `protobuf:"bytes,3,opt,name=header" json:"header,omitempty"` + Transaction *Transaction `protobuf:"bytes,1,req,name=transaction" json:"transaction,omitempty"` + Action []*Action `protobuf:"bytes,2,rep,name=action" json:"action,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *AddActionsRequest) Reset() { *m = AddActionsRequest{} } +func (m *AddActionsRequest) String() string { return proto.CompactTextString(m) } +func (*AddActionsRequest) ProtoMessage() {} + +func (m *AddActionsRequest) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *AddActionsRequest) GetTransaction() *Transaction { + if m != nil { + return m.Transaction + } + return nil +} + +func (m *AddActionsRequest) GetAction() []*Action { + if m != nil { + return m.Action + } + return nil +} + +type AddActionsResponse struct { + XXX_unrecognized []byte `json:"-"` +} + +func (m *AddActionsResponse) Reset() { *m = AddActionsResponse{} } +func (m *AddActionsResponse) String() string { return proto.CompactTextString(m) } +func (*AddActionsResponse) ProtoMessage() {} + +type BeginTransactionRequest struct { + Header *InternalHeader `protobuf:"bytes,3,opt,name=header" json:"header,omitempty"` + App *string `protobuf:"bytes,1,req,name=app" json:"app,omitempty"` + AllowMultipleEg *bool `protobuf:"varint,2,opt,name=allow_multiple_eg,def=0" json:"allow_multiple_eg,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *BeginTransactionRequest) Reset() { *m = BeginTransactionRequest{} } +func (m *BeginTransactionRequest) String() string { return proto.CompactTextString(m) } +func (*BeginTransactionRequest) ProtoMessage() {} + +const Default_BeginTransactionRequest_AllowMultipleEg bool = false + +func (m *BeginTransactionRequest) GetHeader() *InternalHeader { + if m != nil { + return m.Header + } + return nil +} + +func (m *BeginTransactionRequest) GetApp() string { + if m != nil && m.App != nil { + return *m.App + } + return "" +} + +func (m *BeginTransactionRequest) GetAllowMultipleEg() bool { + if m != nil && m.AllowMultipleEg != nil { + return *m.AllowMultipleEg + } + return Default_BeginTransactionRequest_AllowMultipleEg +} + +type CommitResponse struct { + Cost *Cost `protobuf:"bytes,1,opt,name=cost" json:"cost,omitempty"` + Version []*CommitResponse_Version `protobuf:"group,3,rep,name=Version" json:"version,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CommitResponse) Reset() { *m = CommitResponse{} } +func (m *CommitResponse) String() string { return proto.CompactTextString(m) } +func (*CommitResponse) ProtoMessage() {} + +func (m *CommitResponse) GetCost() *Cost { + if m != nil { + return m.Cost + } + return nil +} + +func (m *CommitResponse) GetVersion() []*CommitResponse_Version { + if m != nil { + return m.Version + } + return nil +} + +type CommitResponse_Version struct { + RootEntityKey *Reference `protobuf:"bytes,4,req,name=root_entity_key" json:"root_entity_key,omitempty"` + Version *int64 `protobuf:"varint,5,req,name=version" json:"version,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *CommitResponse_Version) Reset() { *m = CommitResponse_Version{} } +func (m *CommitResponse_Version) String() string { return proto.CompactTextString(m) } +func (*CommitResponse_Version) ProtoMessage() {} + +func (m *CommitResponse_Version) GetRootEntityKey() *Reference { + if m != nil { + return m.RootEntityKey + } + return nil +} + +func (m *CommitResponse_Version) GetVersion() int64 { + if m != nil && m.Version != nil { + return *m.Version + } + return 0 +} + +func init() { +} diff --git a/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.proto b/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.proto new file mode 100755 index 0000000..e76f126 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.proto @@ -0,0 +1,541 @@ +syntax = "proto2"; +option go_package = "datastore"; + +package appengine; + +message Action{} + +message PropertyValue { + optional int64 int64Value = 1; + optional bool booleanValue = 2; + optional string stringValue = 3; + optional double doubleValue = 4; + + optional group PointValue = 5 { + required double x = 6; + required double y = 7; + } + + optional group UserValue = 8 { + required string email = 9; + required string auth_domain = 10; + optional string nickname = 11; + optional string federated_identity = 21; + optional string federated_provider = 22; + } + + optional group ReferenceValue = 12 { + required string app = 13; + optional string name_space = 20; + repeated group PathElement = 14 { + required string type = 15; + optional int64 id = 16; + optional string name = 17; + } + } +} + +message Property { + enum Meaning { + NO_MEANING = 0; + BLOB = 14; + TEXT = 15; + BYTESTRING = 16; + + ATOM_CATEGORY = 1; + ATOM_LINK = 2; + ATOM_TITLE = 3; + ATOM_CONTENT = 4; + ATOM_SUMMARY = 5; + ATOM_AUTHOR = 6; + + GD_WHEN = 7; + GD_EMAIL = 8; + GEORSS_POINT = 9; + GD_IM = 10; + + GD_PHONENUMBER = 11; + GD_POSTALADDRESS = 12; + + GD_RATING = 13; + + BLOBKEY = 17; + ENTITY_PROTO = 19; + + INDEX_VALUE = 18; + }; + + optional Meaning meaning = 1 [default = NO_MEANING]; + optional string meaning_uri = 2; + + required string name = 3; + + required PropertyValue value = 5; + + required bool multiple = 4; + + optional bool searchable = 6 [default=false]; + + enum FtsTokenizationOption { + HTML = 1; + ATOM = 2; + } + + optional FtsTokenizationOption fts_tokenization_option = 8; + + optional string locale = 9 [default = "en"]; +} + +message Path { + repeated group Element = 1 { + required string type = 2; + optional int64 id = 3; + optional string name = 4; + } +} + +message Reference { + required string app = 13; + optional string name_space = 20; + required Path path = 14; +} + +message User { + required string email = 1; + required string auth_domain = 2; + optional string nickname = 3; + optional string federated_identity = 6; + optional string federated_provider = 7; +} + +message EntityProto { + required Reference key = 13; + required Path entity_group = 16; + optional User owner = 17; + + enum Kind { + GD_CONTACT = 1; + GD_EVENT = 2; + GD_MESSAGE = 3; + } + optional Kind kind = 4; + optional string kind_uri = 5; + + repeated Property property = 14; + repeated Property raw_property = 15; + + optional int32 rank = 18; +} + +message CompositeProperty { + required int64 index_id = 1; + repeated string value = 2; +} + +message Index { + required string entity_type = 1; + required bool ancestor = 5; + repeated group Property = 2 { + required string name = 3; + enum Direction { + ASCENDING = 1; + DESCENDING = 2; + } + optional Direction direction = 4 [default = ASCENDING]; + } +} + +message CompositeIndex { + required string app_id = 1; + required int64 id = 2; + required Index definition = 3; + + enum State { + WRITE_ONLY = 1; + READ_WRITE = 2; + DELETED = 3; + ERROR = 4; + } + required State state = 4; + + optional bool only_use_if_required = 6 [default = false]; +} + +message IndexPostfix { + message IndexValue { + required string property_name = 1; + required PropertyValue value = 2; + } + + repeated IndexValue index_value = 1; + + optional Reference key = 2; + + optional bool before = 3 [default=true]; +} + +message IndexPosition { + optional string key = 1; + + optional bool before = 2 [default=true]; +} + +message Snapshot { + enum Status { + INACTIVE = 0; + ACTIVE = 1; + } + + required int64 ts = 1; +} + +message InternalHeader { + optional string qos = 1; +} + +message Transaction { + optional InternalHeader header = 4; + required fixed64 handle = 1; + required string app = 2; + optional bool mark_changes = 3 [default = false]; +} + +message Query { + optional InternalHeader header = 39; + + required string app = 1; + optional string name_space = 29; + + optional string kind = 3; + optional Reference ancestor = 17; + + repeated group Filter = 4 { + enum Operator { + LESS_THAN = 1; + LESS_THAN_OR_EQUAL = 2; + GREATER_THAN = 3; + GREATER_THAN_OR_EQUAL = 4; + EQUAL = 5; + IN = 6; + EXISTS = 7; + } + + required Operator op = 6; + repeated Property property = 14; + } + + optional string search_query = 8; + + repeated group Order = 9 { + enum Direction { + ASCENDING = 1; + DESCENDING = 2; + } + + required string property = 10; + optional Direction direction = 11 [default = ASCENDING]; + } + + enum Hint { + ORDER_FIRST = 1; + ANCESTOR_FIRST = 2; + FILTER_FIRST = 3; + } + optional Hint hint = 18; + + optional int32 count = 23; + + optional int32 offset = 12 [default = 0]; + + optional int32 limit = 16; + + optional CompiledCursor compiled_cursor = 30; + optional CompiledCursor end_compiled_cursor = 31; + + repeated CompositeIndex composite_index = 19; + + optional bool require_perfect_plan = 20 [default = false]; + + optional bool keys_only = 21 [default = false]; + + optional Transaction transaction = 22; + + optional bool compile = 25 [default = false]; + + optional int64 failover_ms = 26; + + optional bool strong = 32; + + repeated string property_name = 33; + + repeated string group_by_property_name = 34; + + optional bool distinct = 24; + + optional int64 min_safe_time_seconds = 35; + + repeated string safe_replica_name = 36; + + optional bool persist_offset = 37 [default=false]; +} + +message CompiledQuery { + required group PrimaryScan = 1 { + optional string index_name = 2; + + optional string start_key = 3; + optional bool start_inclusive = 4; + optional string end_key = 5; + optional bool end_inclusive = 6; + + repeated string start_postfix_value = 22; + repeated string end_postfix_value = 23; + + optional int64 end_unapplied_log_timestamp_us = 19; + } + + repeated group MergeJoinScan = 7 { + required string index_name = 8; + + repeated string prefix_value = 9; + + optional bool value_prefix = 20 [default=false]; + } + + optional Index index_def = 21; + + optional int32 offset = 10 [default = 0]; + + optional int32 limit = 11; + + required bool keys_only = 12; + + repeated string property_name = 24; + + optional int32 distinct_infix_size = 25; + + optional group EntityFilter = 13 { + optional bool distinct = 14 [default=false]; + + optional string kind = 17; + optional Reference ancestor = 18; + } +} + +message CompiledCursor { + optional group Position = 2 { + optional string start_key = 27; + + repeated group IndexValue = 29 { + optional string property = 30; + required PropertyValue value = 31; + } + + optional Reference key = 32; + + optional bool start_inclusive = 28 [default=true]; + } +} + +message Cursor { + required fixed64 cursor = 1; + + optional string app = 2; +} + +message Error { + enum ErrorCode { + BAD_REQUEST = 1; + CONCURRENT_TRANSACTION = 2; + INTERNAL_ERROR = 3; + NEED_INDEX = 4; + TIMEOUT = 5; + PERMISSION_DENIED = 6; + BIGTABLE_ERROR = 7; + COMMITTED_BUT_STILL_APPLYING = 8; + CAPABILITY_DISABLED = 9; + TRY_ALTERNATE_BACKEND = 10; + SAFE_TIME_TOO_OLD = 11; + } +} + +message Cost { + optional int32 index_writes = 1; + optional int32 index_write_bytes = 2; + optional int32 entity_writes = 3; + optional int32 entity_write_bytes = 4; + optional group CommitCost = 5 { + optional int32 requested_entity_puts = 6; + optional int32 requested_entity_deletes = 7; + }; + optional int32 approximate_storage_delta = 8; + optional int32 id_sequence_updates = 9; +} + +message GetRequest { + optional InternalHeader header = 6; + + repeated Reference key = 1; + optional Transaction transaction = 2; + + optional int64 failover_ms = 3; + + optional bool strong = 4; + + optional bool allow_deferred = 5 [default=false]; +} + +message GetResponse { + repeated group Entity = 1 { + optional EntityProto entity = 2; + optional Reference key = 4; + + optional int64 version = 3; + } + + repeated Reference deferred = 5; + + optional bool in_order = 6 [default=true]; +} + +message PutRequest { + optional InternalHeader header = 11; + + repeated EntityProto entity = 1; + optional Transaction transaction = 2; + repeated CompositeIndex composite_index = 3; + + optional bool trusted = 4 [default = false]; + + optional bool force = 7 [default = false]; + + optional bool mark_changes = 8 [default = false]; + repeated Snapshot snapshot = 9; + + enum AutoIdPolicy { + CURRENT = 0; + SEQUENTIAL = 1; + } + optional AutoIdPolicy auto_id_policy = 10 [default = CURRENT]; +} + +message PutResponse { + repeated Reference key = 1; + optional Cost cost = 2; + repeated int64 version = 3; +} + +message TouchRequest { + optional InternalHeader header = 10; + + repeated Reference key = 1; + repeated CompositeIndex composite_index = 2; + optional bool force = 3 [default = false]; + repeated Snapshot snapshot = 9; +} + +message TouchResponse { + optional Cost cost = 1; +} + +message DeleteRequest { + optional InternalHeader header = 10; + + repeated Reference key = 6; + optional Transaction transaction = 5; + + optional bool trusted = 4 [default = false]; + + optional bool force = 7 [default = false]; + + optional bool mark_changes = 8 [default = false]; + repeated Snapshot snapshot = 9; +} + +message DeleteResponse { + optional Cost cost = 1; + repeated int64 version = 3; +} + +message NextRequest { + optional InternalHeader header = 5; + + required Cursor cursor = 1; + optional int32 count = 2; + + optional int32 offset = 4 [default = 0]; + + optional bool compile = 3 [default = false]; +} + +message QueryResult { + optional Cursor cursor = 1; + + repeated EntityProto result = 2; + + optional int32 skipped_results = 7; + + required bool more_results = 3; + + optional bool keys_only = 4; + + optional bool index_only = 9; + + optional bool small_ops = 10; + + optional CompiledQuery compiled_query = 5; + + optional CompiledCursor compiled_cursor = 6; + + repeated CompositeIndex index = 8; + + repeated int64 version = 11; +} + +message AllocateIdsRequest { + optional InternalHeader header = 4; + + optional Reference model_key = 1; + + optional int64 size = 2; + + optional int64 max = 3; + + repeated Reference reserve = 5; +} + +message AllocateIdsResponse { + required int64 start = 1; + required int64 end = 2; + optional Cost cost = 3; +} + +message CompositeIndices { + repeated CompositeIndex index = 1; +} + +message AddActionsRequest { + optional InternalHeader header = 3; + + required Transaction transaction = 1; + repeated Action action = 2; +} + +message AddActionsResponse { +} + +message BeginTransactionRequest { + optional InternalHeader header = 3; + + required string app = 1; + optional bool allow_multiple_eg = 2 [default = false]; +} + +message CommitResponse { + optional Cost cost = 1; + + repeated group Version = 3 { + required Reference root_entity_key = 4; + required int64 version = 5; + } +} diff --git a/vendor/google.golang.org/appengine/internal/identity.go b/vendor/google.golang.org/appengine/internal/identity.go new file mode 100644 index 0000000..d538701 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/identity.go @@ -0,0 +1,14 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package internal + +import netcontext "golang.org/x/net/context" + +// These functions are implementations of the wrapper functions +// in ../appengine/identity.go. See that file for commentary. + +func AppID(c netcontext.Context) string { + return appID(FullyQualifiedAppID(c)) +} diff --git a/vendor/google.golang.org/appengine/internal/identity_classic.go b/vendor/google.golang.org/appengine/internal/identity_classic.go new file mode 100644 index 0000000..e6b9227 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/identity_classic.go @@ -0,0 +1,27 @@ +// Copyright 2015 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// +build appengine + +package internal + +import ( + "appengine" + + netcontext "golang.org/x/net/context" +) + +func DefaultVersionHostname(ctx netcontext.Context) string { + return appengine.DefaultVersionHostname(fromContext(ctx)) +} + +func RequestID(ctx netcontext.Context) string { return appengine.RequestID(fromContext(ctx)) } +func Datacenter(_ netcontext.Context) string { return appengine.Datacenter() } +func ServerSoftware() string { return appengine.ServerSoftware() } +func ModuleName(ctx netcontext.Context) string { return appengine.ModuleName(fromContext(ctx)) } +func VersionID(ctx netcontext.Context) string { return appengine.VersionID(fromContext(ctx)) } +func InstanceID() string { return appengine.InstanceID() } +func IsDevAppServer() bool { return appengine.IsDevAppServer() } + +func fullyQualifiedAppID(ctx netcontext.Context) string { return fromContext(ctx).FullyQualifiedAppID() } diff --git a/vendor/google.golang.org/appengine/internal/identity_vm.go b/vendor/google.golang.org/appengine/internal/identity_vm.go new file mode 100644 index 0000000..ebe68b7 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/identity_vm.go @@ -0,0 +1,97 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// +build !appengine + +package internal + +import ( + "net/http" + "os" + + netcontext "golang.org/x/net/context" +) + +// These functions are implementations of the wrapper functions +// in ../appengine/identity.go. See that file for commentary. + +const ( + hDefaultVersionHostname = "X-AppEngine-Default-Version-Hostname" + hRequestLogId = "X-AppEngine-Request-Log-Id" + hDatacenter = "X-AppEngine-Datacenter" +) + +func ctxHeaders(ctx netcontext.Context) http.Header { + return fromContext(ctx).Request().Header +} + +func DefaultVersionHostname(ctx netcontext.Context) string { + return ctxHeaders(ctx).Get(hDefaultVersionHostname) +} + +func RequestID(ctx netcontext.Context) string { + return ctxHeaders(ctx).Get(hRequestLogId) +} + +func Datacenter(ctx netcontext.Context) string { + return ctxHeaders(ctx).Get(hDatacenter) +} + +func ServerSoftware() string { + // TODO(dsymonds): Remove fallback when we've verified this. + if s := os.Getenv("SERVER_SOFTWARE"); s != "" { + return s + } + return "Google App Engine/1.x.x" +} + +// TODO(dsymonds): Remove the metadata fetches. + +func ModuleName(_ netcontext.Context) string { + if s := os.Getenv("GAE_MODULE_NAME"); s != "" { + return s + } + return string(mustGetMetadata("instance/attributes/gae_backend_name")) +} + +func VersionID(_ netcontext.Context) string { + if s1, s2 := os.Getenv("GAE_MODULE_VERSION"), os.Getenv("GAE_MINOR_VERSION"); s1 != "" && s2 != "" { + return s1 + "." + s2 + } + return string(mustGetMetadata("instance/attributes/gae_backend_version")) + "." + string(mustGetMetadata("instance/attributes/gae_backend_minor_version")) +} + +func InstanceID() string { + if s := os.Getenv("GAE_MODULE_INSTANCE"); s != "" { + return s + } + return string(mustGetMetadata("instance/attributes/gae_backend_instance")) +} + +func partitionlessAppID() string { + // gae_project has everything except the partition prefix. + appID := os.Getenv("GAE_LONG_APP_ID") + if appID == "" { + appID = string(mustGetMetadata("instance/attributes/gae_project")) + } + return appID +} + +func fullyQualifiedAppID(_ netcontext.Context) string { + appID := partitionlessAppID() + + part := os.Getenv("GAE_PARTITION") + if part == "" { + part = string(mustGetMetadata("instance/attributes/gae_partition")) + } + + if part != "" { + appID = part + "~" + appID + } + return appID +} + +func IsDevAppServer() bool { + return os.Getenv("RUN_WITH_DEVAPPSERVER") != "" +} diff --git a/vendor/google.golang.org/appengine/internal/internal.go b/vendor/google.golang.org/appengine/internal/internal.go new file mode 100644 index 0000000..66e8d76 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/internal.go @@ -0,0 +1,144 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// Package internal provides support for package appengine. +// +// Programs should not use this package directly. Its API is not stable. +// Use packages appengine and appengine/* instead. +package internal + +import ( + "fmt" + "io" + "log" + "net/http" + "net/url" + "os" + + "github.com/golang/protobuf/proto" + + remotepb "google.golang.org/appengine/internal/remote_api" +) + +// errorCodeMaps is a map of service name to the error code map for the service. +var errorCodeMaps = make(map[string]map[int32]string) + +// RegisterErrorCodeMap is called from API implementations to register their +// error code map. This should only be called from init functions. +func RegisterErrorCodeMap(service string, m map[int32]string) { + errorCodeMaps[service] = m +} + +type timeoutCodeKey struct { + service string + code int32 +} + +// timeoutCodes is the set of service+code pairs that represent timeouts. +var timeoutCodes = make(map[timeoutCodeKey]bool) + +func RegisterTimeoutErrorCode(service string, code int32) { + timeoutCodes[timeoutCodeKey{service, code}] = true +} + +// APIError is the type returned by appengine.Context's Call method +// when an API call fails in an API-specific way. This may be, for instance, +// a taskqueue API call failing with TaskQueueServiceError::UNKNOWN_QUEUE. +type APIError struct { + Service string + Detail string + Code int32 // API-specific error code +} + +func (e *APIError) Error() string { + if e.Code == 0 { + if e.Detail == "" { + return "APIError " + } + return e.Detail + } + s := fmt.Sprintf("API error %d", e.Code) + if m, ok := errorCodeMaps[e.Service]; ok { + s += " (" + e.Service + ": " + m[e.Code] + ")" + } else { + // Shouldn't happen, but provide a bit more detail if it does. + s = e.Service + " " + s + } + if e.Detail != "" { + s += ": " + e.Detail + } + return s +} + +func (e *APIError) IsTimeout() bool { + return timeoutCodes[timeoutCodeKey{e.Service, e.Code}] +} + +// CallError is the type returned by appengine.Context's Call method when an +// API call fails in a generic way, such as RpcError::CAPABILITY_DISABLED. +type CallError struct { + Detail string + Code int32 + // TODO: Remove this if we get a distinguishable error code. + Timeout bool +} + +func (e *CallError) Error() string { + var msg string + switch remotepb.RpcError_ErrorCode(e.Code) { + case remotepb.RpcError_UNKNOWN: + return e.Detail + case remotepb.RpcError_OVER_QUOTA: + msg = "Over quota" + case remotepb.RpcError_CAPABILITY_DISABLED: + msg = "Capability disabled" + case remotepb.RpcError_CANCELLED: + msg = "Canceled" + default: + msg = fmt.Sprintf("Call error %d", e.Code) + } + s := msg + ": " + e.Detail + if e.Timeout { + s += " (timeout)" + } + return s +} + +func (e *CallError) IsTimeout() bool { + return e.Timeout +} + +func Main() { + installHealthChecker(http.DefaultServeMux) + + port := "8080" + if s := os.Getenv("PORT"); s != "" { + port = s + } + + if err := http.ListenAndServe(":"+port, http.HandlerFunc(handleHTTP)); err != nil { + log.Fatalf("http.ListenAndServe: %v", err) + } +} + +func installHealthChecker(mux *http.ServeMux) { + // If no health check handler has been installed by this point, add a trivial one. + const healthPath = "/_ah/health" + hreq := &http.Request{ + Method: "GET", + URL: &url.URL{ + Path: healthPath, + }, + } + if _, pat := mux.Handler(hreq); pat != healthPath { + mux.HandleFunc(healthPath, func(w http.ResponseWriter, r *http.Request) { + io.WriteString(w, "ok") + }) + } +} + +// NamespaceMods is a map from API service to a function that will mutate an RPC request to attach a namespace. +// The function should be prepared to be called on the same message more than once; it should only modify the +// RPC request the first time. +var NamespaceMods = make(map[string]func(m proto.Message, namespace string)) diff --git a/vendor/google.golang.org/appengine/internal/log_vm.go b/vendor/google.golang.org/appengine/internal/log_vm.go new file mode 100644 index 0000000..1e7c9f2 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/log_vm.go @@ -0,0 +1,109 @@ +// Copyright 2016 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// +build !appengine + +package internal + +import ( + "encoding/json" + "fmt" + "io" + "io/ioutil" + "log" + "os" + "strings" + "sync" + "time" +) + +// jsonLogger writes logs in the JSON format required for Flex Logging. It can +// be used concurrently. +type jsonLogger struct { + mu sync.Mutex + enc *json.Encoder +} + +type logLine struct { + Message string `json:"message"` + Timestamp logTimestamp `json:"timestamp"` + Severity string `json:"severity"` + TraceID string `json:"traceId,omitempty"` +} + +type logTimestamp struct { + Seconds int64 `json:"seconds"` + Nanos int `json:"nanos"` +} + +var ( + logger *jsonLogger + loggerOnce sync.Once + + logPath = "/var/log/app_engine/app.json" + stderrLogger = newJSONLogger(os.Stderr) + testLogger = newJSONLogger(ioutil.Discard) + + levels = map[int64]string{ + 0: "DEBUG", + 1: "INFO", + 2: "WARNING", + 3: "ERROR", + 4: "CRITICAL", + } +) + +func globalLogger() *jsonLogger { + loggerOnce.Do(func() { + f, err := os.OpenFile(logPath, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666) + if err != nil { + log.Printf("failed to open/create log file, logging to stderr: %v", err) + logger = stderrLogger + return + } + + logger = newJSONLogger(f) + }) + + return logger +} + +func logf(ctx *context, level int64, format string, args ...interface{}) { + s := strings.TrimSpace(fmt.Sprintf(format, args...)) + now := time.Now() + + trace := ctx.req.Header.Get(traceHeader) + if i := strings.Index(trace, "/"); i > -1 { + trace = trace[:i] + } + + line := &logLine{ + Message: s, + Timestamp: logTimestamp{ + Seconds: now.Unix(), + Nanos: now.Nanosecond(), + }, + Severity: levels[level], + TraceID: trace, + } + + if err := ctx.logger.emit(line); err != nil { + log.Printf("failed to write log line to file: %v", err) + } + + log.Print(levels[level] + ": " + s) +} + +func newJSONLogger(w io.Writer) *jsonLogger { + return &jsonLogger{ + enc: json.NewEncoder(w), + } +} + +func (l *jsonLogger) emit(line *logLine) error { + l.mu.Lock() + defer l.mu.Unlock() + + return l.enc.Encode(line) +} diff --git a/vendor/google.golang.org/appengine/internal/metadata.go b/vendor/google.golang.org/appengine/internal/metadata.go new file mode 100644 index 0000000..9cc1f71 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/metadata.go @@ -0,0 +1,61 @@ +// Copyright 2014 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package internal + +// This file has code for accessing metadata. +// +// References: +// https://cloud.google.com/compute/docs/metadata + +import ( + "fmt" + "io/ioutil" + "log" + "net/http" + "net/url" +) + +const ( + metadataHost = "metadata" + metadataPath = "/computeMetadata/v1/" +) + +var ( + metadataRequestHeaders = http.Header{ + "Metadata-Flavor": []string{"Google"}, + } +) + +// TODO(dsymonds): Do we need to support default values, like Python? +func mustGetMetadata(key string) []byte { + b, err := getMetadata(key) + if err != nil { + log.Fatalf("Metadata fetch failed: %v", err) + } + return b +} + +func getMetadata(key string) ([]byte, error) { + // TODO(dsymonds): May need to use url.Parse to support keys with query args. + req := &http.Request{ + Method: "GET", + URL: &url.URL{ + Scheme: "http", + Host: metadataHost, + Path: metadataPath + key, + }, + Header: metadataRequestHeaders, + Host: metadataHost, + } + resp, err := http.DefaultClient.Do(req) + if err != nil { + return nil, err + } + defer resp.Body.Close() + if resp.StatusCode != 200 { + return nil, fmt.Errorf("metadata server returned HTTP %d", resp.StatusCode) + } + return ioutil.ReadAll(resp.Body) +} diff --git a/vendor/google.golang.org/appengine/internal/net.go b/vendor/google.golang.org/appengine/internal/net.go new file mode 100644 index 0000000..3b94cf0 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/net.go @@ -0,0 +1,56 @@ +// Copyright 2014 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package internal + +// This file implements a network dialer that limits the number of concurrent connections. +// It is only used for API calls. + +import ( + "log" + "net" + "runtime" + "sync" + "time" +) + +var limitSem = make(chan int, 100) // TODO(dsymonds): Use environment variable. + +func limitRelease() { + // non-blocking + select { + case <-limitSem: + default: + // This should not normally happen. + log.Print("appengine: unbalanced limitSem release!") + } +} + +func limitDial(network, addr string) (net.Conn, error) { + limitSem <- 1 + + // Dial with a timeout in case the API host is MIA. + // The connection should normally be very fast. + conn, err := net.DialTimeout(network, addr, 500*time.Millisecond) + if err != nil { + limitRelease() + return nil, err + } + lc := &limitConn{Conn: conn} + runtime.SetFinalizer(lc, (*limitConn).Close) // shouldn't usually be required + return lc, nil +} + +type limitConn struct { + close sync.Once + net.Conn +} + +func (lc *limitConn) Close() error { + defer lc.close.Do(func() { + limitRelease() + runtime.SetFinalizer(lc, nil) + }) + return lc.Conn.Close() +} diff --git a/vendor/google.golang.org/appengine/internal/regen.sh b/vendor/google.golang.org/appengine/internal/regen.sh new file mode 100755 index 0000000..2fdb546 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/regen.sh @@ -0,0 +1,40 @@ +#!/bin/bash -e +# +# This script rebuilds the generated code for the protocol buffers. +# To run this you will need protoc and goprotobuf installed; +# see https://github.com/golang/protobuf for instructions. + +PKG=google.golang.org/appengine + +function die() { + echo 1>&2 $* + exit 1 +} + +# Sanity check that the right tools are accessible. +for tool in go protoc protoc-gen-go; do + q=$(which $tool) || die "didn't find $tool" + echo 1>&2 "$tool: $q" +done + +echo -n 1>&2 "finding package dir... " +pkgdir=$(go list -f '{{.Dir}}' $PKG) +echo 1>&2 $pkgdir +base=$(echo $pkgdir | sed "s,/$PKG\$,,") +echo 1>&2 "base: $base" +cd $base + +# Run protoc once per package. +for dir in $(find $PKG/internal -name '*.proto' | xargs dirname | sort | uniq); do + echo 1>&2 "* $dir" + protoc --go_out=. $dir/*.proto +done + +for f in $(find $PKG/internal -name '*.pb.go'); do + # Remove proto.RegisterEnum calls. + # These cause duplicate registration panics when these packages + # are used on classic App Engine. proto.RegisterEnum only affects + # parsing the text format; we don't care about that. + # https://code.google.com/p/googleappengine/issues/detail?id=11670#c17 + sed -i '/proto.RegisterEnum/d' $f +done diff --git a/vendor/google.golang.org/appengine/internal/remote_api/remote_api.pb.go b/vendor/google.golang.org/appengine/internal/remote_api/remote_api.pb.go new file mode 100644 index 0000000..526bd39 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/remote_api/remote_api.pb.go @@ -0,0 +1,231 @@ +// Code generated by protoc-gen-go. +// source: google.golang.org/appengine/internal/remote_api/remote_api.proto +// DO NOT EDIT! + +/* +Package remote_api is a generated protocol buffer package. + +It is generated from these files: + google.golang.org/appengine/internal/remote_api/remote_api.proto + +It has these top-level messages: + Request + ApplicationError + RpcError + Response +*/ +package remote_api + +import proto "github.com/golang/protobuf/proto" +import fmt "fmt" +import math "math" + +// Reference imports to suppress errors if they are not otherwise used. +var _ = proto.Marshal +var _ = fmt.Errorf +var _ = math.Inf + +type RpcError_ErrorCode int32 + +const ( + RpcError_UNKNOWN RpcError_ErrorCode = 0 + RpcError_CALL_NOT_FOUND RpcError_ErrorCode = 1 + RpcError_PARSE_ERROR RpcError_ErrorCode = 2 + RpcError_SECURITY_VIOLATION RpcError_ErrorCode = 3 + RpcError_OVER_QUOTA RpcError_ErrorCode = 4 + RpcError_REQUEST_TOO_LARGE RpcError_ErrorCode = 5 + RpcError_CAPABILITY_DISABLED RpcError_ErrorCode = 6 + RpcError_FEATURE_DISABLED RpcError_ErrorCode = 7 + RpcError_BAD_REQUEST RpcError_ErrorCode = 8 + RpcError_RESPONSE_TOO_LARGE RpcError_ErrorCode = 9 + RpcError_CANCELLED RpcError_ErrorCode = 10 + RpcError_REPLAY_ERROR RpcError_ErrorCode = 11 + RpcError_DEADLINE_EXCEEDED RpcError_ErrorCode = 12 +) + +var RpcError_ErrorCode_name = map[int32]string{ + 0: "UNKNOWN", + 1: "CALL_NOT_FOUND", + 2: "PARSE_ERROR", + 3: "SECURITY_VIOLATION", + 4: "OVER_QUOTA", + 5: "REQUEST_TOO_LARGE", + 6: "CAPABILITY_DISABLED", + 7: "FEATURE_DISABLED", + 8: "BAD_REQUEST", + 9: "RESPONSE_TOO_LARGE", + 10: "CANCELLED", + 11: "REPLAY_ERROR", + 12: "DEADLINE_EXCEEDED", +} +var RpcError_ErrorCode_value = map[string]int32{ + "UNKNOWN": 0, + "CALL_NOT_FOUND": 1, + "PARSE_ERROR": 2, + "SECURITY_VIOLATION": 3, + "OVER_QUOTA": 4, + "REQUEST_TOO_LARGE": 5, + "CAPABILITY_DISABLED": 6, + "FEATURE_DISABLED": 7, + "BAD_REQUEST": 8, + "RESPONSE_TOO_LARGE": 9, + "CANCELLED": 10, + "REPLAY_ERROR": 11, + "DEADLINE_EXCEEDED": 12, +} + +func (x RpcError_ErrorCode) Enum() *RpcError_ErrorCode { + p := new(RpcError_ErrorCode) + *p = x + return p +} +func (x RpcError_ErrorCode) String() string { + return proto.EnumName(RpcError_ErrorCode_name, int32(x)) +} +func (x *RpcError_ErrorCode) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(RpcError_ErrorCode_value, data, "RpcError_ErrorCode") + if err != nil { + return err + } + *x = RpcError_ErrorCode(value) + return nil +} + +type Request struct { + ServiceName *string `protobuf:"bytes,2,req,name=service_name" json:"service_name,omitempty"` + Method *string `protobuf:"bytes,3,req,name=method" json:"method,omitempty"` + Request []byte `protobuf:"bytes,4,req,name=request" json:"request,omitempty"` + RequestId *string `protobuf:"bytes,5,opt,name=request_id" json:"request_id,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Request) Reset() { *m = Request{} } +func (m *Request) String() string { return proto.CompactTextString(m) } +func (*Request) ProtoMessage() {} + +func (m *Request) GetServiceName() string { + if m != nil && m.ServiceName != nil { + return *m.ServiceName + } + return "" +} + +func (m *Request) GetMethod() string { + if m != nil && m.Method != nil { + return *m.Method + } + return "" +} + +func (m *Request) GetRequest() []byte { + if m != nil { + return m.Request + } + return nil +} + +func (m *Request) GetRequestId() string { + if m != nil && m.RequestId != nil { + return *m.RequestId + } + return "" +} + +type ApplicationError struct { + Code *int32 `protobuf:"varint,1,req,name=code" json:"code,omitempty"` + Detail *string `protobuf:"bytes,2,req,name=detail" json:"detail,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *ApplicationError) Reset() { *m = ApplicationError{} } +func (m *ApplicationError) String() string { return proto.CompactTextString(m) } +func (*ApplicationError) ProtoMessage() {} + +func (m *ApplicationError) GetCode() int32 { + if m != nil && m.Code != nil { + return *m.Code + } + return 0 +} + +func (m *ApplicationError) GetDetail() string { + if m != nil && m.Detail != nil { + return *m.Detail + } + return "" +} + +type RpcError struct { + Code *int32 `protobuf:"varint,1,req,name=code" json:"code,omitempty"` + Detail *string `protobuf:"bytes,2,opt,name=detail" json:"detail,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *RpcError) Reset() { *m = RpcError{} } +func (m *RpcError) String() string { return proto.CompactTextString(m) } +func (*RpcError) ProtoMessage() {} + +func (m *RpcError) GetCode() int32 { + if m != nil && m.Code != nil { + return *m.Code + } + return 0 +} + +func (m *RpcError) GetDetail() string { + if m != nil && m.Detail != nil { + return *m.Detail + } + return "" +} + +type Response struct { + Response []byte `protobuf:"bytes,1,opt,name=response" json:"response,omitempty"` + Exception []byte `protobuf:"bytes,2,opt,name=exception" json:"exception,omitempty"` + ApplicationError *ApplicationError `protobuf:"bytes,3,opt,name=application_error" json:"application_error,omitempty"` + JavaException []byte `protobuf:"bytes,4,opt,name=java_exception" json:"java_exception,omitempty"` + RpcError *RpcError `protobuf:"bytes,5,opt,name=rpc_error" json:"rpc_error,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Response) Reset() { *m = Response{} } +func (m *Response) String() string { return proto.CompactTextString(m) } +func (*Response) ProtoMessage() {} + +func (m *Response) GetResponse() []byte { + if m != nil { + return m.Response + } + return nil +} + +func (m *Response) GetException() []byte { + if m != nil { + return m.Exception + } + return nil +} + +func (m *Response) GetApplicationError() *ApplicationError { + if m != nil { + return m.ApplicationError + } + return nil +} + +func (m *Response) GetJavaException() []byte { + if m != nil { + return m.JavaException + } + return nil +} + +func (m *Response) GetRpcError() *RpcError { + if m != nil { + return m.RpcError + } + return nil +} + +func init() { +} diff --git a/vendor/google.golang.org/appengine/internal/remote_api/remote_api.proto b/vendor/google.golang.org/appengine/internal/remote_api/remote_api.proto new file mode 100644 index 0000000..f21763a --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/remote_api/remote_api.proto @@ -0,0 +1,44 @@ +syntax = "proto2"; +option go_package = "remote_api"; + +package remote_api; + +message Request { + required string service_name = 2; + required string method = 3; + required bytes request = 4; + optional string request_id = 5; +} + +message ApplicationError { + required int32 code = 1; + required string detail = 2; +} + +message RpcError { + enum ErrorCode { + UNKNOWN = 0; + CALL_NOT_FOUND = 1; + PARSE_ERROR = 2; + SECURITY_VIOLATION = 3; + OVER_QUOTA = 4; + REQUEST_TOO_LARGE = 5; + CAPABILITY_DISABLED = 6; + FEATURE_DISABLED = 7; + BAD_REQUEST = 8; + RESPONSE_TOO_LARGE = 9; + CANCELLED = 10; + REPLAY_ERROR = 11; + DEADLINE_EXCEEDED = 12; + } + required int32 code = 1; + optional string detail = 2; +} + +message Response { + optional bytes response = 1; + optional bytes exception = 2; + optional ApplicationError application_error = 3; + optional bytes java_exception = 4; + optional RpcError rpc_error = 5; +} diff --git a/vendor/google.golang.org/appengine/internal/transaction.go b/vendor/google.golang.org/appengine/internal/transaction.go new file mode 100644 index 0000000..28a6d18 --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/transaction.go @@ -0,0 +1,107 @@ +// Copyright 2014 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package internal + +// This file implements hooks for applying datastore transactions. + +import ( + "errors" + "reflect" + + "github.com/golang/protobuf/proto" + netcontext "golang.org/x/net/context" + + basepb "google.golang.org/appengine/internal/base" + pb "google.golang.org/appengine/internal/datastore" +) + +var transactionSetters = make(map[reflect.Type]reflect.Value) + +// RegisterTransactionSetter registers a function that sets transaction information +// in a protocol buffer message. f should be a function with two arguments, +// the first being a protocol buffer type, and the second being *datastore.Transaction. +func RegisterTransactionSetter(f interface{}) { + v := reflect.ValueOf(f) + transactionSetters[v.Type().In(0)] = v +} + +// applyTransaction applies the transaction t to message pb +// by using the relevant setter passed to RegisterTransactionSetter. +func applyTransaction(pb proto.Message, t *pb.Transaction) { + v := reflect.ValueOf(pb) + if f, ok := transactionSetters[v.Type()]; ok { + f.Call([]reflect.Value{v, reflect.ValueOf(t)}) + } +} + +var transactionKey = "used for *Transaction" + +func transactionFromContext(ctx netcontext.Context) *transaction { + t, _ := ctx.Value(&transactionKey).(*transaction) + return t +} + +func withTransaction(ctx netcontext.Context, t *transaction) netcontext.Context { + return netcontext.WithValue(ctx, &transactionKey, t) +} + +type transaction struct { + transaction pb.Transaction + finished bool +} + +var ErrConcurrentTransaction = errors.New("internal: concurrent transaction") + +func RunTransactionOnce(c netcontext.Context, f func(netcontext.Context) error, xg bool) error { + if transactionFromContext(c) != nil { + return errors.New("nested transactions are not supported") + } + + // Begin the transaction. + t := &transaction{} + req := &pb.BeginTransactionRequest{ + App: proto.String(FullyQualifiedAppID(c)), + } + if xg { + req.AllowMultipleEg = proto.Bool(true) + } + if err := Call(c, "datastore_v3", "BeginTransaction", req, &t.transaction); err != nil { + return err + } + + // Call f, rolling back the transaction if f returns a non-nil error, or panics. + // The panic is not recovered. + defer func() { + if t.finished { + return + } + t.finished = true + // Ignore the error return value, since we are already returning a non-nil + // error (or we're panicking). + Call(c, "datastore_v3", "Rollback", &t.transaction, &basepb.VoidProto{}) + }() + if err := f(withTransaction(c, t)); err != nil { + return err + } + t.finished = true + + // Commit the transaction. + res := &pb.CommitResponse{} + err := Call(c, "datastore_v3", "Commit", &t.transaction, res) + if ae, ok := err.(*APIError); ok { + /* TODO: restore this conditional + if appengine.IsDevAppServer() { + */ + // The Python Dev AppServer raises an ApplicationError with error code 2 (which is + // Error.CONCURRENT_TRANSACTION) and message "Concurrency exception.". + if ae.Code == int32(pb.Error_BAD_REQUEST) && ae.Detail == "ApplicationError: 2 Concurrency exception." { + return ErrConcurrentTransaction + } + if ae.Code == int32(pb.Error_CONCURRENT_TRANSACTION) { + return ErrConcurrentTransaction + } + } + return err +} diff --git a/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go new file mode 100644 index 0000000..af463fb --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go @@ -0,0 +1,355 @@ +// Code generated by protoc-gen-go. +// source: google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto +// DO NOT EDIT! + +/* +Package urlfetch is a generated protocol buffer package. + +It is generated from these files: + google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto + +It has these top-level messages: + URLFetchServiceError + URLFetchRequest + URLFetchResponse +*/ +package urlfetch + +import proto "github.com/golang/protobuf/proto" +import fmt "fmt" +import math "math" + +// Reference imports to suppress errors if they are not otherwise used. +var _ = proto.Marshal +var _ = fmt.Errorf +var _ = math.Inf + +type URLFetchServiceError_ErrorCode int32 + +const ( + URLFetchServiceError_OK URLFetchServiceError_ErrorCode = 0 + URLFetchServiceError_INVALID_URL URLFetchServiceError_ErrorCode = 1 + URLFetchServiceError_FETCH_ERROR URLFetchServiceError_ErrorCode = 2 + URLFetchServiceError_UNSPECIFIED_ERROR URLFetchServiceError_ErrorCode = 3 + URLFetchServiceError_RESPONSE_TOO_LARGE URLFetchServiceError_ErrorCode = 4 + URLFetchServiceError_DEADLINE_EXCEEDED URLFetchServiceError_ErrorCode = 5 + URLFetchServiceError_SSL_CERTIFICATE_ERROR URLFetchServiceError_ErrorCode = 6 + URLFetchServiceError_DNS_ERROR URLFetchServiceError_ErrorCode = 7 + URLFetchServiceError_CLOSED URLFetchServiceError_ErrorCode = 8 + URLFetchServiceError_INTERNAL_TRANSIENT_ERROR URLFetchServiceError_ErrorCode = 9 + URLFetchServiceError_TOO_MANY_REDIRECTS URLFetchServiceError_ErrorCode = 10 + URLFetchServiceError_MALFORMED_REPLY URLFetchServiceError_ErrorCode = 11 + URLFetchServiceError_CONNECTION_ERROR URLFetchServiceError_ErrorCode = 12 +) + +var URLFetchServiceError_ErrorCode_name = map[int32]string{ + 0: "OK", + 1: "INVALID_URL", + 2: "FETCH_ERROR", + 3: "UNSPECIFIED_ERROR", + 4: "RESPONSE_TOO_LARGE", + 5: "DEADLINE_EXCEEDED", + 6: "SSL_CERTIFICATE_ERROR", + 7: "DNS_ERROR", + 8: "CLOSED", + 9: "INTERNAL_TRANSIENT_ERROR", + 10: "TOO_MANY_REDIRECTS", + 11: "MALFORMED_REPLY", + 12: "CONNECTION_ERROR", +} +var URLFetchServiceError_ErrorCode_value = map[string]int32{ + "OK": 0, + "INVALID_URL": 1, + "FETCH_ERROR": 2, + "UNSPECIFIED_ERROR": 3, + "RESPONSE_TOO_LARGE": 4, + "DEADLINE_EXCEEDED": 5, + "SSL_CERTIFICATE_ERROR": 6, + "DNS_ERROR": 7, + "CLOSED": 8, + "INTERNAL_TRANSIENT_ERROR": 9, + "TOO_MANY_REDIRECTS": 10, + "MALFORMED_REPLY": 11, + "CONNECTION_ERROR": 12, +} + +func (x URLFetchServiceError_ErrorCode) Enum() *URLFetchServiceError_ErrorCode { + p := new(URLFetchServiceError_ErrorCode) + *p = x + return p +} +func (x URLFetchServiceError_ErrorCode) String() string { + return proto.EnumName(URLFetchServiceError_ErrorCode_name, int32(x)) +} +func (x *URLFetchServiceError_ErrorCode) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(URLFetchServiceError_ErrorCode_value, data, "URLFetchServiceError_ErrorCode") + if err != nil { + return err + } + *x = URLFetchServiceError_ErrorCode(value) + return nil +} + +type URLFetchRequest_RequestMethod int32 + +const ( + URLFetchRequest_GET URLFetchRequest_RequestMethod = 1 + URLFetchRequest_POST URLFetchRequest_RequestMethod = 2 + URLFetchRequest_HEAD URLFetchRequest_RequestMethod = 3 + URLFetchRequest_PUT URLFetchRequest_RequestMethod = 4 + URLFetchRequest_DELETE URLFetchRequest_RequestMethod = 5 + URLFetchRequest_PATCH URLFetchRequest_RequestMethod = 6 +) + +var URLFetchRequest_RequestMethod_name = map[int32]string{ + 1: "GET", + 2: "POST", + 3: "HEAD", + 4: "PUT", + 5: "DELETE", + 6: "PATCH", +} +var URLFetchRequest_RequestMethod_value = map[string]int32{ + "GET": 1, + "POST": 2, + "HEAD": 3, + "PUT": 4, + "DELETE": 5, + "PATCH": 6, +} + +func (x URLFetchRequest_RequestMethod) Enum() *URLFetchRequest_RequestMethod { + p := new(URLFetchRequest_RequestMethod) + *p = x + return p +} +func (x URLFetchRequest_RequestMethod) String() string { + return proto.EnumName(URLFetchRequest_RequestMethod_name, int32(x)) +} +func (x *URLFetchRequest_RequestMethod) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(URLFetchRequest_RequestMethod_value, data, "URLFetchRequest_RequestMethod") + if err != nil { + return err + } + *x = URLFetchRequest_RequestMethod(value) + return nil +} + +type URLFetchServiceError struct { + XXX_unrecognized []byte `json:"-"` +} + +func (m *URLFetchServiceError) Reset() { *m = URLFetchServiceError{} } +func (m *URLFetchServiceError) String() string { return proto.CompactTextString(m) } +func (*URLFetchServiceError) ProtoMessage() {} + +type URLFetchRequest struct { + Method *URLFetchRequest_RequestMethod `protobuf:"varint,1,req,name=Method,enum=appengine.URLFetchRequest_RequestMethod" json:"Method,omitempty"` + Url *string `protobuf:"bytes,2,req,name=Url" json:"Url,omitempty"` + Header []*URLFetchRequest_Header `protobuf:"group,3,rep,name=Header" json:"header,omitempty"` + Payload []byte `protobuf:"bytes,6,opt,name=Payload" json:"Payload,omitempty"` + FollowRedirects *bool `protobuf:"varint,7,opt,name=FollowRedirects,def=1" json:"FollowRedirects,omitempty"` + Deadline *float64 `protobuf:"fixed64,8,opt,name=Deadline" json:"Deadline,omitempty"` + MustValidateServerCertificate *bool `protobuf:"varint,9,opt,name=MustValidateServerCertificate,def=1" json:"MustValidateServerCertificate,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *URLFetchRequest) Reset() { *m = URLFetchRequest{} } +func (m *URLFetchRequest) String() string { return proto.CompactTextString(m) } +func (*URLFetchRequest) ProtoMessage() {} + +const Default_URLFetchRequest_FollowRedirects bool = true +const Default_URLFetchRequest_MustValidateServerCertificate bool = true + +func (m *URLFetchRequest) GetMethod() URLFetchRequest_RequestMethod { + if m != nil && m.Method != nil { + return *m.Method + } + return URLFetchRequest_GET +} + +func (m *URLFetchRequest) GetUrl() string { + if m != nil && m.Url != nil { + return *m.Url + } + return "" +} + +func (m *URLFetchRequest) GetHeader() []*URLFetchRequest_Header { + if m != nil { + return m.Header + } + return nil +} + +func (m *URLFetchRequest) GetPayload() []byte { + if m != nil { + return m.Payload + } + return nil +} + +func (m *URLFetchRequest) GetFollowRedirects() bool { + if m != nil && m.FollowRedirects != nil { + return *m.FollowRedirects + } + return Default_URLFetchRequest_FollowRedirects +} + +func (m *URLFetchRequest) GetDeadline() float64 { + if m != nil && m.Deadline != nil { + return *m.Deadline + } + return 0 +} + +func (m *URLFetchRequest) GetMustValidateServerCertificate() bool { + if m != nil && m.MustValidateServerCertificate != nil { + return *m.MustValidateServerCertificate + } + return Default_URLFetchRequest_MustValidateServerCertificate +} + +type URLFetchRequest_Header struct { + Key *string `protobuf:"bytes,4,req,name=Key" json:"Key,omitempty"` + Value *string `protobuf:"bytes,5,req,name=Value" json:"Value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *URLFetchRequest_Header) Reset() { *m = URLFetchRequest_Header{} } +func (m *URLFetchRequest_Header) String() string { return proto.CompactTextString(m) } +func (*URLFetchRequest_Header) ProtoMessage() {} + +func (m *URLFetchRequest_Header) GetKey() string { + if m != nil && m.Key != nil { + return *m.Key + } + return "" +} + +func (m *URLFetchRequest_Header) GetValue() string { + if m != nil && m.Value != nil { + return *m.Value + } + return "" +} + +type URLFetchResponse struct { + Content []byte `protobuf:"bytes,1,opt,name=Content" json:"Content,omitempty"` + StatusCode *int32 `protobuf:"varint,2,req,name=StatusCode" json:"StatusCode,omitempty"` + Header []*URLFetchResponse_Header `protobuf:"group,3,rep,name=Header" json:"header,omitempty"` + ContentWasTruncated *bool `protobuf:"varint,6,opt,name=ContentWasTruncated,def=0" json:"ContentWasTruncated,omitempty"` + ExternalBytesSent *int64 `protobuf:"varint,7,opt,name=ExternalBytesSent" json:"ExternalBytesSent,omitempty"` + ExternalBytesReceived *int64 `protobuf:"varint,8,opt,name=ExternalBytesReceived" json:"ExternalBytesReceived,omitempty"` + FinalUrl *string `protobuf:"bytes,9,opt,name=FinalUrl" json:"FinalUrl,omitempty"` + ApiCpuMilliseconds *int64 `protobuf:"varint,10,opt,name=ApiCpuMilliseconds,def=0" json:"ApiCpuMilliseconds,omitempty"` + ApiBytesSent *int64 `protobuf:"varint,11,opt,name=ApiBytesSent,def=0" json:"ApiBytesSent,omitempty"` + ApiBytesReceived *int64 `protobuf:"varint,12,opt,name=ApiBytesReceived,def=0" json:"ApiBytesReceived,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *URLFetchResponse) Reset() { *m = URLFetchResponse{} } +func (m *URLFetchResponse) String() string { return proto.CompactTextString(m) } +func (*URLFetchResponse) ProtoMessage() {} + +const Default_URLFetchResponse_ContentWasTruncated bool = false +const Default_URLFetchResponse_ApiCpuMilliseconds int64 = 0 +const Default_URLFetchResponse_ApiBytesSent int64 = 0 +const Default_URLFetchResponse_ApiBytesReceived int64 = 0 + +func (m *URLFetchResponse) GetContent() []byte { + if m != nil { + return m.Content + } + return nil +} + +func (m *URLFetchResponse) GetStatusCode() int32 { + if m != nil && m.StatusCode != nil { + return *m.StatusCode + } + return 0 +} + +func (m *URLFetchResponse) GetHeader() []*URLFetchResponse_Header { + if m != nil { + return m.Header + } + return nil +} + +func (m *URLFetchResponse) GetContentWasTruncated() bool { + if m != nil && m.ContentWasTruncated != nil { + return *m.ContentWasTruncated + } + return Default_URLFetchResponse_ContentWasTruncated +} + +func (m *URLFetchResponse) GetExternalBytesSent() int64 { + if m != nil && m.ExternalBytesSent != nil { + return *m.ExternalBytesSent + } + return 0 +} + +func (m *URLFetchResponse) GetExternalBytesReceived() int64 { + if m != nil && m.ExternalBytesReceived != nil { + return *m.ExternalBytesReceived + } + return 0 +} + +func (m *URLFetchResponse) GetFinalUrl() string { + if m != nil && m.FinalUrl != nil { + return *m.FinalUrl + } + return "" +} + +func (m *URLFetchResponse) GetApiCpuMilliseconds() int64 { + if m != nil && m.ApiCpuMilliseconds != nil { + return *m.ApiCpuMilliseconds + } + return Default_URLFetchResponse_ApiCpuMilliseconds +} + +func (m *URLFetchResponse) GetApiBytesSent() int64 { + if m != nil && m.ApiBytesSent != nil { + return *m.ApiBytesSent + } + return Default_URLFetchResponse_ApiBytesSent +} + +func (m *URLFetchResponse) GetApiBytesReceived() int64 { + if m != nil && m.ApiBytesReceived != nil { + return *m.ApiBytesReceived + } + return Default_URLFetchResponse_ApiBytesReceived +} + +type URLFetchResponse_Header struct { + Key *string `protobuf:"bytes,4,req,name=Key" json:"Key,omitempty"` + Value *string `protobuf:"bytes,5,req,name=Value" json:"Value,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *URLFetchResponse_Header) Reset() { *m = URLFetchResponse_Header{} } +func (m *URLFetchResponse_Header) String() string { return proto.CompactTextString(m) } +func (*URLFetchResponse_Header) ProtoMessage() {} + +func (m *URLFetchResponse_Header) GetKey() string { + if m != nil && m.Key != nil { + return *m.Key + } + return "" +} + +func (m *URLFetchResponse_Header) GetValue() string { + if m != nil && m.Value != nil { + return *m.Value + } + return "" +} + +func init() { +} diff --git a/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto new file mode 100644 index 0000000..f695edf --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto @@ -0,0 +1,64 @@ +syntax = "proto2"; +option go_package = "urlfetch"; + +package appengine; + +message URLFetchServiceError { + enum ErrorCode { + OK = 0; + INVALID_URL = 1; + FETCH_ERROR = 2; + UNSPECIFIED_ERROR = 3; + RESPONSE_TOO_LARGE = 4; + DEADLINE_EXCEEDED = 5; + SSL_CERTIFICATE_ERROR = 6; + DNS_ERROR = 7; + CLOSED = 8; + INTERNAL_TRANSIENT_ERROR = 9; + TOO_MANY_REDIRECTS = 10; + MALFORMED_REPLY = 11; + CONNECTION_ERROR = 12; + } +} + +message URLFetchRequest { + enum RequestMethod { + GET = 1; + POST = 2; + HEAD = 3; + PUT = 4; + DELETE = 5; + PATCH = 6; + } + required RequestMethod Method = 1; + required string Url = 2; + repeated group Header = 3 { + required string Key = 4; + required string Value = 5; + } + optional bytes Payload = 6 [ctype=CORD]; + + optional bool FollowRedirects = 7 [default=true]; + + optional double Deadline = 8; + + optional bool MustValidateServerCertificate = 9 [default=true]; +} + +message URLFetchResponse { + optional bytes Content = 1; + required int32 StatusCode = 2; + repeated group Header = 3 { + required string Key = 4; + required string Value = 5; + } + optional bool ContentWasTruncated = 6 [default=false]; + optional int64 ExternalBytesSent = 7; + optional int64 ExternalBytesReceived = 8; + + optional string FinalUrl = 9; + + optional int64 ApiCpuMilliseconds = 10 [default=0]; + optional int64 ApiBytesSent = 11 [default=0]; + optional int64 ApiBytesReceived = 12 [default=0]; +} diff --git a/vendor/google.golang.org/appengine/namespace.go b/vendor/google.golang.org/appengine/namespace.go new file mode 100644 index 0000000..21860ca --- /dev/null +++ b/vendor/google.golang.org/appengine/namespace.go @@ -0,0 +1,25 @@ +// Copyright 2012 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package appengine + +import ( + "fmt" + "regexp" + + "golang.org/x/net/context" + + "google.golang.org/appengine/internal" +) + +// Namespace returns a replacement context that operates within the given namespace. +func Namespace(c context.Context, namespace string) (context.Context, error) { + if !validNamespace.MatchString(namespace) { + return nil, fmt.Errorf("appengine: namespace %q does not match /%s/", namespace, validNamespace) + } + return internal.NamespacedContext(c, namespace), nil +} + +// validNamespace matches valid namespace names. +var validNamespace = regexp.MustCompile(`^[0-9A-Za-z._-]{0,100}$`) diff --git a/vendor/google.golang.org/appengine/timeout.go b/vendor/google.golang.org/appengine/timeout.go new file mode 100644 index 0000000..05642a9 --- /dev/null +++ b/vendor/google.golang.org/appengine/timeout.go @@ -0,0 +1,20 @@ +// Copyright 2013 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package appengine + +import "golang.org/x/net/context" + +// IsTimeoutError reports whether err is a timeout error. +func IsTimeoutError(err error) bool { + if err == context.DeadlineExceeded { + return true + } + if t, ok := err.(interface { + IsTimeout() bool + }); ok { + return t.IsTimeout() + } + return false +} diff --git a/vendor/google.golang.org/appengine/urlfetch/urlfetch.go b/vendor/google.golang.org/appengine/urlfetch/urlfetch.go new file mode 100644 index 0000000..6ffe1e6 --- /dev/null +++ b/vendor/google.golang.org/appengine/urlfetch/urlfetch.go @@ -0,0 +1,210 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// Package urlfetch provides an http.RoundTripper implementation +// for fetching URLs via App Engine's urlfetch service. +package urlfetch // import "google.golang.org/appengine/urlfetch" + +import ( + "errors" + "fmt" + "io" + "io/ioutil" + "net/http" + "net/url" + "strconv" + "strings" + "time" + + "github.com/golang/protobuf/proto" + "golang.org/x/net/context" + + "google.golang.org/appengine/internal" + pb "google.golang.org/appengine/internal/urlfetch" +) + +// Transport is an implementation of http.RoundTripper for +// App Engine. Users should generally create an http.Client using +// this transport and use the Client rather than using this transport +// directly. +type Transport struct { + Context context.Context + + // Controls whether the application checks the validity of SSL certificates + // over HTTPS connections. A value of false (the default) instructs the + // application to send a request to the server only if the certificate is + // valid and signed by a trusted certificate authority (CA), and also + // includes a hostname that matches the certificate. A value of true + // instructs the application to perform no certificate validation. + AllowInvalidServerCertificate bool +} + +// Verify statically that *Transport implements http.RoundTripper. +var _ http.RoundTripper = (*Transport)(nil) + +// Client returns an *http.Client using a default urlfetch Transport. This +// client will have the default deadline of 5 seconds, and will check the +// validity of SSL certificates. +// +// Any deadline of the provided context will be used for requests through this client; +// if the client does not have a deadline then a 5 second default is used. +func Client(ctx context.Context) *http.Client { + return &http.Client{ + Transport: &Transport{ + Context: ctx, + }, + } +} + +type bodyReader struct { + content []byte + truncated bool + closed bool +} + +// ErrTruncatedBody is the error returned after the final Read() from a +// response's Body if the body has been truncated by App Engine's proxy. +var ErrTruncatedBody = errors.New("urlfetch: truncated body") + +func statusCodeToText(code int) string { + if t := http.StatusText(code); t != "" { + return t + } + return strconv.Itoa(code) +} + +func (br *bodyReader) Read(p []byte) (n int, err error) { + if br.closed { + if br.truncated { + return 0, ErrTruncatedBody + } + return 0, io.EOF + } + n = copy(p, br.content) + if n > 0 { + br.content = br.content[n:] + return + } + if br.truncated { + br.closed = true + return 0, ErrTruncatedBody + } + return 0, io.EOF +} + +func (br *bodyReader) Close() error { + br.closed = true + br.content = nil + return nil +} + +// A map of the URL Fetch-accepted methods that take a request body. +var methodAcceptsRequestBody = map[string]bool{ + "POST": true, + "PUT": true, + "PATCH": true, +} + +// urlString returns a valid string given a URL. This function is necessary because +// the String method of URL doesn't correctly handle URLs with non-empty Opaque values. +// See http://code.google.com/p/go/issues/detail?id=4860. +func urlString(u *url.URL) string { + if u.Opaque == "" || strings.HasPrefix(u.Opaque, "//") { + return u.String() + } + aux := *u + aux.Opaque = "//" + aux.Host + aux.Opaque + return aux.String() +} + +// RoundTrip issues a single HTTP request and returns its response. Per the +// http.RoundTripper interface, RoundTrip only returns an error if there +// was an unsupported request or the URL Fetch proxy fails. +// Note that HTTP response codes such as 5xx, 403, 404, etc are not +// errors as far as the transport is concerned and will be returned +// with err set to nil. +func (t *Transport) RoundTrip(req *http.Request) (res *http.Response, err error) { + methNum, ok := pb.URLFetchRequest_RequestMethod_value[req.Method] + if !ok { + return nil, fmt.Errorf("urlfetch: unsupported HTTP method %q", req.Method) + } + + method := pb.URLFetchRequest_RequestMethod(methNum) + + freq := &pb.URLFetchRequest{ + Method: &method, + Url: proto.String(urlString(req.URL)), + FollowRedirects: proto.Bool(false), // http.Client's responsibility + MustValidateServerCertificate: proto.Bool(!t.AllowInvalidServerCertificate), + } + if deadline, ok := t.Context.Deadline(); ok { + freq.Deadline = proto.Float64(deadline.Sub(time.Now()).Seconds()) + } + + for k, vals := range req.Header { + for _, val := range vals { + freq.Header = append(freq.Header, &pb.URLFetchRequest_Header{ + Key: proto.String(k), + Value: proto.String(val), + }) + } + } + if methodAcceptsRequestBody[req.Method] && req.Body != nil { + // Avoid a []byte copy if req.Body has a Bytes method. + switch b := req.Body.(type) { + case interface { + Bytes() []byte + }: + freq.Payload = b.Bytes() + default: + freq.Payload, err = ioutil.ReadAll(req.Body) + if err != nil { + return nil, err + } + } + } + + fres := &pb.URLFetchResponse{} + if err := internal.Call(t.Context, "urlfetch", "Fetch", freq, fres); err != nil { + return nil, err + } + + res = &http.Response{} + res.StatusCode = int(*fres.StatusCode) + res.Status = fmt.Sprintf("%d %s", res.StatusCode, statusCodeToText(res.StatusCode)) + res.Header = make(http.Header) + res.Request = req + + // Faked: + res.ProtoMajor = 1 + res.ProtoMinor = 1 + res.Proto = "HTTP/1.1" + res.Close = true + + for _, h := range fres.Header { + hkey := http.CanonicalHeaderKey(*h.Key) + hval := *h.Value + if hkey == "Content-Length" { + // Will get filled in below for all but HEAD requests. + if req.Method == "HEAD" { + res.ContentLength, _ = strconv.ParseInt(hval, 10, 64) + } + continue + } + res.Header.Add(hkey, hval) + } + + if req.Method != "HEAD" { + res.ContentLength = int64(len(fres.Content)) + } + + truncated := fres.GetContentWasTruncated() + res.Body = &bodyReader{content: fres.Content, truncated: truncated} + return +} + +func init() { + internal.RegisterErrorCodeMap("urlfetch", pb.URLFetchServiceError_ErrorCode_name) + internal.RegisterTimeoutErrorCode("urlfetch", int32(pb.URLFetchServiceError_DEADLINE_EXCEEDED)) +}