137 lines
3.1 KiB
Go
137 lines
3.1 KiB
Go
package main
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/url"
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"os"
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"github.com/drone/drone-go/drone"
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"github.com/drone/drone-go/plugin"
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"github.com/drone/drone-go/template"
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)
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var (
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build string
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buildDate string
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)
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func main() {
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fmt.Printf("Drone Webhook Plugin built at %s\n", buildDate)
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system := drone.System{}
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repo := drone.Repo{}
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build := drone.Build{}
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vargs := Params{}
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plugin.Param("system", &system)
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plugin.Param("repo", &repo)
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plugin.Param("build", &build)
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plugin.Param("vargs", &vargs)
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plugin.MustParse()
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if len(vargs.Method) == 0 {
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vargs.Method = "POST"
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}
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if len(vargs.ContentType) == 0 {
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vargs.ContentType = "application/json"
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}
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data := struct {
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System drone.System `json:"system"`
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Repo drone.Repo `json:"repo"`
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Build drone.Build `json:"build"`
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}{system, repo, build}
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// creates the payload. by default the payload
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// is the build details in json format, but a custom
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// template may also be used.
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var buf bytes.Buffer
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if len(vargs.Template) == 0 {
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if err := json.NewEncoder(&buf).Encode(&data); err != nil {
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fmt.Printf("Error encoding json payload. %s\n", err)
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os.Exit(1)
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}
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} else {
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err := template.Write(&buf, vargs.Template, &drone.Payload{
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Build: &build,
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Repo: &repo,
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System: &system,
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})
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if err != nil {
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fmt.Printf("Error executing content template. %s\n", err)
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os.Exit(1)
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}
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}
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// build and execute a request for each url.
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// all auth, headers, method, template (payload),
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// and content_type values will be applied to
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// every webhook request.
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for i, rawurl := range vargs.Urls {
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uri, err := url.Parse(rawurl)
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if err != nil {
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fmt.Printf("Error parsing hook url. %s\n", err)
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os.Exit(1)
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}
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b := buf.Bytes()
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r := bytes.NewReader(b)
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req, err := http.NewRequest(vargs.Method, uri.String(), r)
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if err != nil {
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fmt.Printf("Error creating http request. %s\n", err)
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os.Exit(1)
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}
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req.Header.Set("Content-Type", vargs.ContentType)
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for key, value := range vargs.Headers {
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req.Header.Set(key, value)
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}
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if len(vargs.Auth.Username) > 0 {
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if len(vargs.Auth.Password) > 0 {
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req.SetBasicAuth(vargs.Auth.Username, vargs.Auth.Password)
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} else {
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req.SetBasicAuth(vargs.Auth.Username, "")
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}
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}
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resp, err := http.DefaultClient.Do(req)
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if err != nil {
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fmt.Printf("Error executing http request. %s\n", err)
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os.Exit(1)
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}
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defer resp.Body.Close()
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if vargs.Debug || resp.StatusCode >= http.StatusBadRequest {
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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// I do not think we need to os.Exit(1) if we are
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// unable to read a http response body.
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fmt.Printf("Error reading http response body. %s\n", err)
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}
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if vargs.Debug {
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fmt.Printf("[debug] Webhook %d\n URL: %s\n METHOD: %s\n HEADERS: %s\n REQUEST BODY: %s\n RESPONSE STATUS: %s\n RESPONSE BODY: %s\n", i+1, req.URL, req.Method, req.Header, string(b), resp.Status, string(body))
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} else {
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fmt.Printf("[info] Webhook %d\n URL: %s\n RESPONSE STATUS: %s\n RESPONSE BODY: %s\n", i+1, req.URL, resp.Status, string(body))
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}
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}
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}
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}
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