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Fix the bug when getting files changed for pull_request_target event (
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#26320)

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#26290 (comment)

The bug is that we cannot get changed files for the
`pull_request_target` event. This event runs in the context of the base
branch, so we won't get any changes if we call
`GetFilesChangedSinceCommit` with `PullRequest.Base.Ref`.
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@Zettat123
Zettat123 authored Aug 5, 2023
1 parent 5db4c8d commit 9a8af92
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Showing 4 changed files with 77 additions and 13 deletions.
30 changes: 21 additions & 9 deletions modules/actions/workflows.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,7 @@ func GetEventsFromContent(content []byte) ([]*jobparser.Event, error) {
return events, nil
}

func DetectWorkflows(commit *git.Commit, triggedEvent webhook_module.HookEventType, payload api.Payloader) ([]*DetectedWorkflow, error) {
func DetectWorkflows(gitRepo *git.Repository, commit *git.Commit, triggedEvent webhook_module.HookEventType, payload api.Payloader) ([]*DetectedWorkflow, error) {
entries, err := ListWorkflows(commit)
if err != nil {
return nil, err
Expand All @@ -114,7 +114,7 @@ func DetectWorkflows(commit *git.Commit, triggedEvent webhook_module.HookEventTy
}
for _, evt := range events {
log.Trace("detect workflow %q for event %#v matching %q", entry.Name(), evt, triggedEvent)
if detectMatched(commit, triggedEvent, payload, evt) {
if detectMatched(gitRepo, commit, triggedEvent, payload, evt) {
dwf := &DetectedWorkflow{
EntryName: entry.Name(),
TriggerEvent: evt.Name,
Expand All @@ -128,7 +128,7 @@ func DetectWorkflows(commit *git.Commit, triggedEvent webhook_module.HookEventTy
return workflows, nil
}

func detectMatched(commit *git.Commit, triggedEvent webhook_module.HookEventType, payload api.Payloader, evt *jobparser.Event) bool {
func detectMatched(gitRepo *git.Repository, commit *git.Commit, triggedEvent webhook_module.HookEventType, payload api.Payloader, evt *jobparser.Event) bool {
if !canGithubEventMatch(evt.Name, triggedEvent) {
return false
}
Expand Down Expand Up @@ -168,7 +168,7 @@ func detectMatched(commit *git.Commit, triggedEvent webhook_module.HookEventType
webhook_module.HookEventPullRequestSync,
webhook_module.HookEventPullRequestAssign,
webhook_module.HookEventPullRequestLabel:
return matchPullRequestEvent(commit, payload.(*api.PullRequestPayload), evt)
return matchPullRequestEvent(gitRepo, commit, payload.(*api.PullRequestPayload), evt)

case // pull_request_review
webhook_module.HookEventPullRequestReviewApproved,
Expand Down Expand Up @@ -331,7 +331,7 @@ func matchIssuesEvent(commit *git.Commit, issuePayload *api.IssuePayload, evt *j
return matchTimes == len(evt.Acts())
}

func matchPullRequestEvent(commit *git.Commit, prPayload *api.PullRequestPayload, evt *jobparser.Event) bool {
func matchPullRequestEvent(gitRepo *git.Repository, commit *git.Commit, prPayload *api.PullRequestPayload, evt *jobparser.Event) bool {
acts := evt.Acts()
activityTypeMatched := false
matchTimes := 0
Expand Down Expand Up @@ -370,6 +370,18 @@ func matchPullRequestEvent(commit *git.Commit, prPayload *api.PullRequestPayload
}
}

var (
headCommit = commit
err error
)
if evt.Name == GithubEventPullRequestTarget && (len(acts["paths"]) > 0 || len(acts["paths-ignore"]) > 0) {
headCommit, err = gitRepo.GetCommit(prPayload.PullRequest.Head.Sha)
if err != nil {
log.Error("GetCommit [ref: %s]: %v", prPayload.PullRequest.Head.Sha, err)
return false
}
}

// all acts conditions should be satisfied
for cond, vals := range acts {
switch cond {
Expand All @@ -392,9 +404,9 @@ func matchPullRequestEvent(commit *git.Commit, prPayload *api.PullRequestPayload
matchTimes++
}
case "paths":
filesChanged, err := commit.GetFilesChangedSinceCommit(prPayload.PullRequest.Base.Ref)
filesChanged, err := headCommit.GetFilesChangedSinceCommit(prPayload.PullRequest.Base.Ref)
if err != nil {
log.Error("GetFilesChangedSinceCommit [commit_sha1: %s]: %v", commit.ID.String(), err)
log.Error("GetFilesChangedSinceCommit [commit_sha1: %s]: %v", headCommit.ID.String(), err)
} else {
patterns, err := workflowpattern.CompilePatterns(vals...)
if err != nil {
Expand All @@ -405,9 +417,9 @@ func matchPullRequestEvent(commit *git.Commit, prPayload *api.PullRequestPayload
}
}
case "paths-ignore":
filesChanged, err := commit.GetFilesChangedSinceCommit(prPayload.PullRequest.Base.Ref)
filesChanged, err := headCommit.GetFilesChangedSinceCommit(prPayload.PullRequest.Base.Ref)
if err != nil {
log.Error("GetFilesChangedSinceCommit [commit_sha1: %s]: %v", commit.ID.String(), err)
log.Error("GetFilesChangedSinceCommit [commit_sha1: %s]: %v", headCommit.ID.String(), err)
} else {
patterns, err := workflowpattern.CompilePatterns(vals...)
if err != nil {
Expand Down
2 changes: 1 addition & 1 deletion modules/actions/workflows_test.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -125,7 +125,7 @@ func TestDetectMatched(t *testing.T) {
evts, err := GetEventsFromContent([]byte(tc.yamlOn))
assert.NoError(t, err)
assert.Len(t, evts, 1)
assert.Equal(t, tc.expected, detectMatched(tc.commit, tc.triggedEvent, tc.payload, evts[0]))
assert.Equal(t, tc.expected, detectMatched(nil, tc.commit, tc.triggedEvent, tc.payload, evts[0]))
})
}
}
4 changes: 2 additions & 2 deletions services/actions/notifier_helper.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -143,7 +143,7 @@ func notify(ctx context.Context, input *notifyInput) error {
}

var detectedWorkflows []*actions_module.DetectedWorkflow
workflows, err := actions_module.DetectWorkflows(commit, input.Event, input.Payload)
workflows, err := actions_module.DetectWorkflows(gitRepo, commit, input.Event, input.Payload)
if err != nil {
return fmt.Errorf("DetectWorkflows: %w", err)
}
Expand All @@ -164,7 +164,7 @@ func notify(ctx context.Context, input *notifyInput) error {
if err != nil {
return fmt.Errorf("gitRepo.GetCommit: %w", err)
}
baseWorkflows, err := actions_module.DetectWorkflows(baseCommit, input.Event, input.Payload)
baseWorkflows, err := actions_module.DetectWorkflows(gitRepo, baseCommit, input.Event, input.Payload)
if err != nil {
return fmt.Errorf("DetectWorkflows: %w", err)
}
Expand Down
54 changes: 53 additions & 1 deletion tests/integration/actions_trigger_test.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ func TestPullRequestTargetEvent(t *testing.T) {
{
Operation: "create",
TreePath: ".gitea/workflows/pr.yml",
ContentReader: strings.NewReader("name: test\non: pull_request_target\njobs:\n test:\n runs-on: ubuntu-latest\n steps:\n - run: echo helloworld\n"),
ContentReader: strings.NewReader("name: test\non:\n pull_request_target:\n paths:\n - 'file_*.txt'\njobs:\n test:\n runs-on: ubuntu-latest\n steps:\n - run: echo helloworld\n"),
},
},
Message: "add workflow",
Expand Down Expand Up @@ -138,8 +138,60 @@ func TestPullRequestTargetEvent(t *testing.T) {
assert.NoError(t, err)

// load and compare ActionRun
assert.Equal(t, 1, unittest.GetCount(t, &actions_model.ActionRun{RepoID: baseRepo.ID}))
actionRun := unittest.AssertExistsAndLoadBean(t, &actions_model.ActionRun{RepoID: baseRepo.ID})
assert.Equal(t, addFileToForkedResp.Commit.SHA, actionRun.CommitSHA)
assert.Equal(t, actions_module.GithubEventPullRequestTarget, actionRun.TriggerEvent)

// add another file whose name cannot match the specified path
addFileToForkedResp, err = files_service.ChangeRepoFiles(git.DefaultContext, forkedRepo, user3, &files_service.ChangeRepoFilesOptions{
Files: []*files_service.ChangeRepoFile{
{
Operation: "create",
TreePath: "foo.txt",
ContentReader: strings.NewReader("foo"),
},
},
Message: "add foo.txt",
OldBranch: "main",
NewBranch: "fork-branch-2",
Author: &files_service.IdentityOptions{
Name: user3.Name,
Email: user3.Email,
},
Committer: &files_service.IdentityOptions{
Name: user3.Name,
Email: user3.Email,
},
Dates: &files_service.CommitDateOptions{
Author: time.Now(),
Committer: time.Now(),
},
})
assert.NoError(t, err)
assert.NotEmpty(t, addFileToForkedResp)

// create Pull
pullIssue = &issues_model.Issue{
RepoID: baseRepo.ID,
Title: "A mismatched path cannot trigger pull-request-target-event",
PosterID: user3.ID,
Poster: user3,
IsPull: true,
}
pullRequest = &issues_model.PullRequest{
HeadRepoID: forkedRepo.ID,
BaseRepoID: baseRepo.ID,
HeadBranch: "fork-branch-2",
BaseBranch: "main",
HeadRepo: forkedRepo,
BaseRepo: baseRepo,
Type: issues_model.PullRequestGitea,
}
err = pull_service.NewPullRequest(git.DefaultContext, baseRepo, pullIssue, nil, nil, pullRequest, nil)
assert.NoError(t, err)

// the new pull request cannot trigger actions, so there is still only 1 record
assert.Equal(t, 1, unittest.GetCount(t, &actions_model.ActionRun{RepoID: baseRepo.ID}))
})
}

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