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parse.go
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parse.go
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package github
import (
"bytes"
"encoding/json"
"io"
"io/ioutil"
"net/http"
"github.com/drone/drone/model"
)
const (
hookEvent = "X-Github-Event"
hookField = "payload"
hookDeploy = "deployment"
hookPush = "push"
hookPull = "pull_request"
actionOpen = "opened"
actionSync = "synchronize"
stateOpen = "open"
)
// parseHook parses a Bitbucket hook from an http.Request request and returns
// Repo and Build detail. If a hook type is unsupported nil values are returned.
func parseHook(r *http.Request, merge bool) (*model.Repo, *model.Build, error) {
var reader io.Reader = r.Body
if payload := r.FormValue(hookField); payload != "" {
reader = bytes.NewBufferString(payload)
}
raw, err := ioutil.ReadAll(reader)
if err != nil {
return nil, nil, err
}
switch r.Header.Get(hookEvent) {
case hookPush:
return parsePushHook(raw)
case hookDeploy:
return parseDeployHook(raw)
case hookPull:
return parsePullHook(raw, merge)
}
return nil, nil, nil
}
// parsePushHook parses a push hook and returns the Repo and Build details.
// If the commit type is unsupported nil values are returned.
func parsePushHook(payload []byte) (*model.Repo, *model.Build, error) {
hook := new(webhook)
err := json.Unmarshal(payload, hook)
if err != nil {
return nil, nil, err
}
if hook.Deleted {
return nil, nil, err
}
return convertRepoHook(hook), convertPushHook(hook), nil
}
// parseDeployHook parses a deployment and returns the Repo and Build details.
// If the commit type is unsupported nil values are returned.
func parseDeployHook(payload []byte) (*model.Repo, *model.Build, error) {
hook := new(webhook)
if err := json.Unmarshal(payload, hook); err != nil {
return nil, nil, err
}
return convertRepoHook(hook), convertDeployHook(hook), nil
}
// parsePullHook parses a pull request hook and returns the Repo and Build
// details. If the pull request is closed nil values are returned.
func parsePullHook(payload []byte, merge bool) (*model.Repo, *model.Build, error) {
hook := new(webhook)
err := json.Unmarshal(payload, hook)
if err != nil {
return nil, nil, err
}
// ignore these
if hook.Action != actionOpen && hook.Action != actionSync {
return nil, nil, nil
}
if hook.PullRequest.State != stateOpen {
return nil, nil, nil
}
return convertRepoHook(hook), convertPullHook(hook, merge), nil
}