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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package actions
import (
"bytes"
"context"
"fmt"
"slices"
"strings"
actions_model "code.gitea.io/gitea/models/actions"
"code.gitea.io/gitea/models/db"
issues_model "code.gitea.io/gitea/models/issues"
packages_model "code.gitea.io/gitea/models/packages"
access_model "code.gitea.io/gitea/models/perm/access"
repo_model "code.gitea.io/gitea/models/repo"
unit_model "code.gitea.io/gitea/models/unit"
user_model "code.gitea.io/gitea/models/user"
actions_module "code.gitea.io/gitea/modules/actions"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/gitrepo"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
webhook_module "code.gitea.io/gitea/modules/webhook"
"code.gitea.io/gitea/services/convert"
"github.com/nektos/act/pkg/jobparser"
"github.com/nektos/act/pkg/model"
)
var methodCtxKey struct{}
// withMethod sets the notification method that this context currently executes.
// Used for debugging/ troubleshooting purposes.
func withMethod(ctx context.Context, method string) context.Context {
// don't overwrite
if v := ctx.Value(methodCtxKey); v != nil {
if _, ok := v.(string); ok {
return ctx
}
}
return context.WithValue(ctx, methodCtxKey, method)
}
// getMethod gets the notification method that this context currently executes.
// Default: "notify"
// Used for debugging/ troubleshooting purposes.
func getMethod(ctx context.Context) string {
if v := ctx.Value(methodCtxKey); v != nil {
if s, ok := v.(string); ok {
return s
}
}
return "notify"
}
type notifyInput struct {
// required
Repo *repo_model.Repository
Doer *user_model.User
Event webhook_module.HookEventType
// optional
Ref string
Payload api.Payloader
PullRequest *issues_model.PullRequest
}
func newNotifyInput(repo *repo_model.Repository, doer *user_model.User, event webhook_module.HookEventType) *notifyInput {
return ¬ifyInput{
Repo: repo,
Doer: doer,
Event: event,
}
}
func (input *notifyInput) WithDoer(doer *user_model.User) *notifyInput {
input.Doer = doer
return input
}
func (input *notifyInput) WithRef(ref string) *notifyInput {
input.Ref = ref
return input
}
func (input *notifyInput) WithPayload(payload api.Payloader) *notifyInput {
input.Payload = payload
return input
}
func (input *notifyInput) WithPullRequest(pr *issues_model.PullRequest) *notifyInput {
input.PullRequest = pr
if input.Ref == "" {
input.Ref = pr.GetGitRefName()
}
return input
}
func (input *notifyInput) Notify(ctx context.Context) {
log.Trace("execute %v for event %v whose doer is %v", getMethod(ctx), input.Event, input.Doer.Name)
if err := notify(ctx, input); err != nil {
log.Error("an error occurred while executing the %s actions method: %v", getMethod(ctx), err)
}
}
func notify(ctx context.Context, input *notifyInput) error {
if input.Doer.IsActions() {
// avoiding triggering cyclically, for example:
// a comment of an issue will trigger the runner to add a new comment as reply,
// and the new comment will trigger the runner again.
log.Debug("ignore executing %v for event %v whose doer is %v", getMethod(ctx), input.Event, input.Doer.Name)
return nil
}
if input.Repo.IsEmpty {
return nil
}
if unit_model.TypeActions.UnitGlobalDisabled() {
if err := actions_model.CleanRepoScheduleTasks(ctx, input.Repo); err != nil {
log.Error("CleanRepoScheduleTasks: %v", err)
}
return nil
}
if err := input.Repo.LoadUnits(ctx); err != nil {
return fmt.Errorf("repo.LoadUnits: %w", err)
} else if !input.Repo.UnitEnabled(ctx, unit_model.TypeActions) {
return nil
}
gitRepo, err := gitrepo.OpenRepository(context.Background(), input.Repo)
if err != nil {
return fmt.Errorf("git.OpenRepository: %w", err)
}
defer gitRepo.Close()
ref := input.Ref
if ref != input.Repo.DefaultBranch && actions_module.IsDefaultBranchWorkflow(input.Event) {
if ref != "" {
log.Warn("Event %q should only trigger workflows on the default branch, but its ref is %q. Will fall back to the default branch",
input.Event, ref)
}
ref = input.Repo.DefaultBranch
}
if ref == "" {
log.Warn("Ref of event %q is empty, will fall back to the default branch", input.Event)
ref = input.Repo.DefaultBranch
}
// Get the commit object for the ref
commit, err := gitRepo.GetCommit(ref)
if err != nil {
return fmt.Errorf("gitRepo.GetCommit: %w", err)
}
if skipWorkflowsForCommit(input, commit) {
return nil
}
var detectedWorkflows []*actions_module.DetectedWorkflow
actionsConfig := input.Repo.MustGetUnit(ctx, unit_model.TypeActions).ActionsConfig()
shouldDetectSchedules := input.Event == webhook_module.HookEventPush && git.RefName(input.Ref).BranchName() == input.Repo.DefaultBranch
workflows, schedules, err := actions_module.DetectWorkflows(gitRepo, commit,
input.Event,
input.Payload,
shouldDetectSchedules,
)
if err != nil {
return fmt.Errorf("DetectWorkflows: %w", err)
}
log.Trace("repo %s with commit %s event %s find %d workflows and %d schedules",
input.Repo.RepoPath(),
commit.ID,
input.Event,
len(workflows),
len(schedules),
)
for _, wf := range workflows {
if actionsConfig.IsWorkflowDisabled(wf.EntryName) {
log.Trace("repo %s has disable workflows %s", input.Repo.RepoPath(), wf.EntryName)
continue
}
if wf.TriggerEvent.Name != actions_module.GithubEventPullRequestTarget {
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(gitRepo, baseCommit, input.Event, input.Payload, false)
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.Name == actions_module.GithubEventPullRequestTarget {
detectedWorkflows = append(detectedWorkflows, wf)
}
}
}
}
if shouldDetectSchedules {
if err := handleSchedules(ctx, schedules, commit, input, ref); err != nil {
return err
}
}
return handleWorkflows(ctx, detectedWorkflows, commit, input, ref)
}
func skipWorkflowsForCommit(input *notifyInput, commit *git.Commit) bool {
// skip workflow runs with a configured skip-ci string in commit message if the event is push or pull_request(_sync)
// https://docs.github.com/en/actions/managing-workflow-runs/skipping-workflow-runs
skipWorkflowEvents := []webhook_module.HookEventType{
webhook_module.HookEventPush,
webhook_module.HookEventPullRequest,
webhook_module.HookEventPullRequestSync,
}
if slices.Contains(skipWorkflowEvents, input.Event) {
for _, s := range setting.Actions.SkipWorkflowStrings {
if strings.Contains(commit.CommitMessage, s) {
log.Debug("repo %s with commit %s: skipped run because of %s string", input.Repo.RepoPath(), commit.ID, s)
return true
}
}
}
return false
}
func handleWorkflows(
ctx context.Context,
detectedWorkflows []*actions_module.DetectedWorkflow,
commit *git.Commit,
input *notifyInput,
ref string,
) error {
if len(detectedWorkflows) == 0 {
log.Trace("repo %s with commit %s couldn't find workflows", input.Repo.RepoPath(), commit.ID)
return nil
}
p, err := json.Marshal(input.Payload)
if err != nil {
return fmt.Errorf("json.Marshal: %w", err)
}
isForkPullRequest := false
if pr := input.PullRequest; pr != nil {
switch pr.Flow {
case issues_model.PullRequestFlowGithub:
isForkPullRequest = pr.IsFromFork()
case issues_model.PullRequestFlowAGit:
// There is no fork concept in agit flow, anyone with read permission can push refs/for/<target-branch>/<topic-branch> to the repo.
// So we can treat it as a fork pull request because it may be from an untrusted user
isForkPullRequest = true
default:
// unknown flow, assume it's a fork pull request to be safe
isForkPullRequest = true
}
}
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: dwf.EntryName,
TriggerUserID: input.Doer.ID,
Ref: ref,
CommitSHA: commit.ID.String(),
IsForkPullRequest: isForkPullRequest,
Event: input.Event,
EventPayload: string(p),
TriggerEvent: dwf.TriggerEvent.Name,
Status: actions_model.StatusWaiting,
}
if need, err := ifNeedApproval(ctx, run, input.Repo, input.Doer); err != nil {
log.Error("check if need approval for repo %d with user %d: %v", input.Repo.ID, input.Doer.ID, err)
continue
} else {
run.NeedApproval = need
}
jobs, err := jobparser.Parse(dwf.Content)
if err != nil {
log.Error("jobparser.Parse: %v", err)
continue
}
// cancel running jobs if the event is push
if run.Event == webhook_module.HookEventPush {
// cancel running jobs of the same workflow
if err := actions_model.CancelRunningJobs(
ctx,
run.RepoID,
run.Ref,
run.WorkflowID,
run.Event,
); err != nil {
log.Error("CancelRunningJobs: %v", err)
}
}
if err := actions_model.InsertRun(ctx, run, jobs); err != nil {
log.Error("InsertRun: %v", err)
continue
}
alljobs, err := db.Find[actions_model.ActionRunJob](ctx, actions_model.FindRunJobOptions{RunID: run.ID})
if err != nil {
log.Error("FindRunJobs: %v", err)
continue
}
CreateCommitStatus(ctx, alljobs...)
}
return nil
}
func newNotifyInputFromIssue(issue *issues_model.Issue, event webhook_module.HookEventType) *notifyInput {
return newNotifyInput(issue.Repo, issue.Poster, event)
}
func notifyRelease(ctx context.Context, doer *user_model.User, rel *repo_model.Release, action api.HookReleaseAction) {
if err := rel.LoadAttributes(ctx); err != nil {
log.Error("LoadAttributes: %v", err)
return
}
permission, _ := access_model.GetUserRepoPermission(ctx, rel.Repo, doer)
newNotifyInput(rel.Repo, doer, webhook_module.HookEventRelease).
WithRef(git.RefNameFromTag(rel.TagName).String()).
WithPayload(&api.ReleasePayload{
Action: action,
Release: convert.ToAPIRelease(ctx, rel.Repo, rel),
Repository: convert.ToRepo(ctx, rel.Repo, permission),
Sender: convert.ToUser(ctx, doer, nil),
}).
Notify(ctx)
}
func notifyPackage(ctx context.Context, sender *user_model.User, pd *packages_model.PackageDescriptor, action api.HookPackageAction) {
if pd.Repository == nil {
// When a package is uploaded to an organization, it could trigger an event to notify.
// So the repository could be nil, however, actions can't support that yet.
// See https://github.com/go-gitea/gitea/pull/17940
return
}
apiPackage, err := convert.ToPackage(ctx, pd, sender)
if err != nil {
log.Error("Error converting package: %v", err)
return
}
newNotifyInput(pd.Repository, sender, webhook_module.HookEventPackage).
WithPayload(&api.PackagePayload{
Action: action,
Package: apiPackage,
Sender: convert.ToUser(ctx, sender, nil),
}).
Notify(ctx)
}
func ifNeedApproval(ctx context.Context, run *actions_model.ActionRun, repo *repo_model.Repository, user *user_model.User) (bool, error) {
// 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
}
// always need approval if the user is restricted
if user.IsRestricted {
log.Trace("need approval because user %d is restricted", user.ID)
return true, nil
}
// don't need approval if the user can write
if perm, err := access_model.GetUserRepoPermission(ctx, repo, user); err != nil {
return false, fmt.Errorf("GetUserRepoPermission: %w", err)
} else if perm.CanWrite(unit_model.TypeActions) {
log.Trace("do not need approval because user %d can write", user.ID)
return false, nil
}
// don't need approval if the user has been approved before
if count, err := db.Count[actions_model.ActionRun](ctx, actions_model.FindRunOptions{
RepoID: repo.ID,
TriggerUserID: user.ID,
Approved: true,
}); err != nil {
return false, fmt.Errorf("CountRuns: %w", err)
} else if count > 0 {
log.Trace("do not need approval because user %d has been approved before", user.ID)
return false, nil
}
// otherwise, need approval
log.Trace("need approval because it's the first time user %d triggered actions", user.ID)
return true, nil
}
func handleSchedules(
ctx context.Context,
detectedWorkflows []*actions_module.DetectedWorkflow,
commit *git.Commit,
input *notifyInput,
ref string,
) error {
branch, err := commit.GetBranchName()
if err != nil {
return err
}
if branch != input.Repo.DefaultBranch {
log.Trace("commit branch is not default branch in repo")
return nil
}
if count, err := db.Count[actions_model.ActionSchedule](ctx, actions_model.FindScheduleOptions{RepoID: input.Repo.ID}); err != nil {
log.Error("CountSchedules: %v", err)
return err
} else if count > 0 {
if err := actions_model.CleanRepoScheduleTasks(ctx, input.Repo); err != nil {
log.Error("CleanRepoScheduleTasks: %v", err)
}
}
if len(detectedWorkflows) == 0 {
log.Trace("repo %s with commit %s couldn't find schedules", input.Repo.RepoPath(), commit.ID)
return nil
}
p, err := json.Marshal(input.Payload)
if err != nil {
return fmt.Errorf("json.Marshal: %w", err)
}
crons := make([]*actions_model.ActionSchedule, 0, len(detectedWorkflows))
for _, dwf := range detectedWorkflows {
// Check cron job condition. Only working in default branch
workflow, err := model.ReadWorkflow(bytes.NewReader(dwf.Content))
if err != nil {
log.Error("ReadWorkflow: %v", err)
continue
}
schedules := workflow.OnSchedule()
if len(schedules) == 0 {
log.Warn("no schedule event")
continue
}
run := &actions_model.ActionSchedule{
Title: strings.SplitN(commit.CommitMessage, "\n", 2)[0],
RepoID: input.Repo.ID,
OwnerID: input.Repo.OwnerID,
WorkflowID: dwf.EntryName,
TriggerUserID: input.Doer.ID,
Ref: ref,
CommitSHA: commit.ID.String(),
Event: input.Event,
EventPayload: string(p),
Specs: schedules,
Content: dwf.Content,
}
crons = append(crons, run)
}
return actions_model.CreateScheduleTask(ctx, crons)
}
// DetectAndHandleSchedules detects the schedule workflows on the default branch and create schedule tasks
func DetectAndHandleSchedules(ctx context.Context, repo *repo_model.Repository) error {
if repo.IsEmpty {
return nil
}
gitRepo, err := gitrepo.OpenRepository(context.Background(), repo)
if err != nil {
return fmt.Errorf("git.OpenRepository: %w", err)
}
defer gitRepo.Close()
// Only detect schedule workflows on the default branch
commit, err := gitRepo.GetCommit(repo.DefaultBranch)
if err != nil {
return fmt.Errorf("gitRepo.GetCommit: %w", err)
}
scheduleWorkflows, err := actions_module.DetectScheduledWorkflows(gitRepo, commit)
if err != nil {
return fmt.Errorf("detect schedule workflows: %w", err)
}
if len(scheduleWorkflows) == 0 {
return nil
}
// We need a notifyInput to call handleSchedules
// Here we use the commit author as the Doer of the notifyInput
commitUser, err := user_model.GetUserByEmail(ctx, commit.Author.Email)
if err != nil {
return fmt.Errorf("get user by email: %w", err)
}
notifyInput := newNotifyInput(repo, commitUser, webhook_module.HookEventSchedule)
return handleSchedules(ctx, scheduleWorkflows, commit, notifyInput, repo.DefaultBranch)
}
|