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Support pull_request_target event (#25229)

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Fix #25088

This PR adds the support for
[`pull_request_target`](https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target)
workflow trigger. `pull_request_target` is similar to `pull_request`,
but the workflow triggered by the `pull_request_target` event runs in
the context of the base branch of the pull request rather than the head
branch. Since the workflow from the base is considered trusted, it can
access the secrets and doesn't need approvals to run.
This commit is contained in:
Zettat123 2023-06-26 14:33:18 +08:00 • committed by GitHub
parent e409e14bdf
commit 48e5a74f21
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10 changed files with 286 additions and 63 deletions
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52
services/actions/notifier_helper.go
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@ -142,13 +142,46 @@ func notify(ctx context.Context, input *notifyInput) error {
return fmt.Errorf("gitRepo.GetCommit: %w", err)
}
var detectedWorkflows []*actions_module.DetectedWorkflow
workflows, err := actions_module.DetectWorkflows(commit, input.Event, input.Payload)
if err != nil {
return fmt.Errorf("DetectWorkflows: %w", err)
}
if len(workflows) == 0 {
log.Trace("repo %s with commit %s couldn't find workflows", input.Repo.RepoPath(), commit.ID)
} else {
for _, wf := range workflows {
if wf.TriggerEvent != actions_module.GithubEventPullRequestTarget {
wf.Ref = ref
detectedWorkflows = append(detectedWorkflows, wf)
}
}
}
if input.PullRequest != nil {
// detect pull_request_target workflows
baseRef := git.BranchPrefix + input.PullRequest.BaseBranch
baseCommit, err := gitRepo.GetCommit(baseRef)
if err != nil {
return fmt.Errorf("gitRepo.GetCommit: %w", err)
}
baseWorkflows, err := actions_module.DetectWorkflows(baseCommit, input.Event, input.Payload)
if err != nil {
return fmt.Errorf("DetectWorkflows: %w", err)
}
if len(baseWorkflows) == 0 {
log.Trace("repo %s with commit %s couldn't find pull_request_target workflows", input.Repo.RepoPath(), baseCommit.ID)
} else {
for _, wf := range baseWorkflows {
if wf.TriggerEvent == actions_module.GithubEventPullRequestTarget {
wf.Ref = baseRef
detectedWorkflows = append(detectedWorkflows, wf)
}
}
}
}
if len(detectedWorkflows) == 0 {
return nil
}
@ -172,18 +205,19 @@ func notify(ctx context.Context, input *notifyInput) error {
}
}
for id, content := range workflows {
for _, dwf := range detectedWorkflows {
run := &actions_model.ActionRun{
Title: strings.SplitN(commit.CommitMessage, "\n", 2)[0],
RepoID: input.Repo.ID,
OwnerID: input.Repo.OwnerID,
WorkflowID: id,
WorkflowID: dwf.EntryName,
TriggerUserID: input.Doer.ID,
Ref: ref,
CommitSHA: commit.ID.String(),
Ref: dwf.Ref,
CommitSHA: dwf.Commit.ID.String(),
IsForkPullRequest: isForkPullRequest,
Event: input.Event,
EventPayload: string(p),
TriggerEvent: dwf.TriggerEvent,
Status: actions_model.StatusWaiting,
}
if need, err := ifNeedApproval(ctx, run, input.Repo, input.Doer); err != nil {
@ -193,7 +227,7 @@ func notify(ctx context.Context, input *notifyInput) error {
run.NeedApproval = need
}
jobs, err := jobparser.Parse(content)
jobs, err := jobparser.Parse(dwf.Content)
if err != nil {
log.Error("jobparser.Parse: %v", err)
continue
@ -259,8 +293,10 @@ func notifyPackage(ctx context.Context, sender *user_model.User, pd *packages_mo
}
func ifNeedApproval(ctx context.Context, run *actions_model.ActionRun, repo *repo_model.Repository, user *user_model.User) (bool, error) {
// don't need approval if it's not a fork PR
if !run.IsForkPullRequest {
// 1. don't need approval if it's not a fork PR
// 2. don't need approval if the event is `pull_request_target` since the workflow will run in the context of base branch
// see https://docs.github.com/en/actions/managing-workflow-runs/approving-workflow-runs-from-public-forks#about-workflow-runs-from-public-forks
if !run.IsForkPullRequest || run.TriggerEvent == actions_module.GithubEventPullRequestTarget {
return false, nil
}