From ff7c7be61e82bd063e5c9d2a2266bb31960db63b Mon Sep 17 00:00:00 2001
From: Chmouel Boudjnah <chmouel@redhat.com>
Date: Wed, 18 Dec 2024 17:42:19 +0100
Subject: [PATCH] Fix crash with bad payload

We were getting this crash on the controller:

```
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x1f99bc7]
pipelines-as-code/pkg/provider/github/parse_payload.go:277
```
TestSkippedEvent shows it but it wasn't detected that the controller was
crashing and hapily returned ok

Signed-off-by: Chmouel Boudjnah <chmouel@redhat.com>
---
 pkg/provider/github/parse_payload.go      | 15 +++++++++++++++
 pkg/provider/github/parse_payload_test.go | 18 ++++++++++++++++++
 test/invalid_event_test.go                |  2 +-
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/pkg/provider/github/parse_payload.go b/pkg/provider/github/parse_payload.go
index b6a6e3353..7623f25d4 100644
--- a/pkg/provider/github/parse_payload.go
+++ b/pkg/provider/github/parse_payload.go
@@ -254,6 +254,9 @@ func (v *Provider) processEvent(ctx context.Context, event *info.Event, eventInt
 			return nil, err
 		}
 	case *github.PushEvent:
+		if gitEvent.GetRepo() == nil {
+			return nil, errors.New("error parsing payload the repository should not be nil")
+		}
 		processedEvent.Organization = gitEvent.GetRepo().GetOwner().GetLogin()
 		processedEvent.Repository = gitEvent.GetRepo().GetName()
 		processedEvent.DefaultBranch = gitEvent.GetRepo().GetDefaultBranch()
@@ -274,6 +277,9 @@ func (v *Provider) processEvent(ctx context.Context, event *info.Event, eventInt
 		processedEvent.HeadURL = processedEvent.BaseURL // in push events Head URL is the same as BaseURL
 	case *github.PullRequestEvent:
 		processedEvent.Repository = gitEvent.GetRepo().GetName()
+		if gitEvent.GetRepo() == nil {
+			return nil, errors.New("error parsing payload the repository should not be nil")
+		}
 		processedEvent.Organization = gitEvent.GetRepo().Owner.GetLogin()
 		processedEvent.DefaultBranch = gitEvent.GetRepo().GetDefaultBranch()
 		processedEvent.SHA = gitEvent.GetPullRequest().Head.GetSHA()
@@ -309,6 +315,9 @@ func (v *Provider) processEvent(ctx context.Context, event *info.Event, eventInt
 
 func (v *Provider) handleReRequestEvent(ctx context.Context, event *github.CheckRunEvent) (*info.Event, error) {
 	runevent := info.NewEvent()
+	if event.GetRepo() == nil {
+		return nil, errors.New("error parsing payload the repository should not be nil")
+	}
 	runevent.Organization = event.GetRepo().GetOwner().GetLogin()
 	runevent.Repository = event.GetRepo().GetName()
 	runevent.URL = event.GetRepo().GetHTMLURL()
@@ -334,6 +343,9 @@ func (v *Provider) handleReRequestEvent(ctx context.Context, event *github.Check
 
 func (v *Provider) handleCheckSuites(ctx context.Context, event *github.CheckSuiteEvent) (*info.Event, error) {
 	runevent := info.NewEvent()
+	if event.GetRepo() == nil {
+		return nil, errors.New("error parsing payload the repository should not be nil")
+	}
 	runevent.Organization = event.GetRepo().GetOwner().GetLogin()
 	runevent.Repository = event.GetRepo().GetName()
 	runevent.URL = event.GetRepo().GetHTMLURL()
@@ -396,6 +408,9 @@ func (v *Provider) handleIssueCommentEvent(ctx context.Context, event *github.Is
 func (v *Provider) handleCommitCommentEvent(ctx context.Context, event *github.CommitCommentEvent) (*info.Event, error) {
 	action := "push"
 	runevent := info.NewEvent()
+	if event.GetRepo() == nil {
+		return nil, errors.New("error parsing payload the repository should not be nil")
+	}
 	runevent.Organization = event.GetRepo().GetOwner().GetLogin()
 	runevent.Repository = event.GetRepo().GetName()
 	runevent.Sender = event.GetSender().GetLogin()
diff --git a/pkg/provider/github/parse_payload_test.go b/pkg/provider/github/parse_payload_test.go
index 496e42796..997e80c17 100644
--- a/pkg/provider/github/parse_payload_test.go
+++ b/pkg/provider/github/parse_payload_test.go
@@ -91,6 +91,10 @@ var samplePRAnother = github.PullRequest{
 func TestParsePayLoad(t *testing.T) {
 	samplePrEventClosed := samplePRevent
 	samplePrEventClosed.Action = github.String("closed")
+
+	samplePRNoRepo := samplePRevent
+	samplePRNoRepo.Repo = nil
+
 	tests := []struct {
 		name                       string
 		wantErrString              string
@@ -188,6 +192,20 @@ func TestParsePayLoad(t *testing.T) {
 			},
 			shaRet: "samplePRsha",
 		},
+		{
+			name:               "bad/pull request",
+			eventType:          "pull_request",
+			triggerTarget:      triggertype.PullRequest.String(),
+			payloadEventStruct: samplePRNoRepo,
+			wantErrString:      "error parsing payload the repository should not be nil",
+		},
+		{
+			name:               "bad/push",
+			eventType:          "push",
+			triggerTarget:      triggertype.Push.String(),
+			payloadEventStruct: github.PushEvent{},
+			wantErrString:      "error parsing payload the repository should not be nil",
+		},
 		{
 			// specific run from a check_suite
 			name:          "good/rerequest check_run on pull request",
diff --git a/test/invalid_event_test.go b/test/invalid_event_test.go
index 0de2ff53e..4a3714377 100644
--- a/test/invalid_event_test.go
+++ b/test/invalid_event_test.go
@@ -82,7 +82,7 @@ func TestSkippedEvent(t *testing.T) {
 	assert.NilError(t, err)
 	defer resp.Body.Close()
 
-	assert.Equal(t, resp.StatusCode, http.StatusOK, "%s reply expected 200 OK", elURL)
+	assert.Equal(t, resp.StatusCode, http.StatusAccepted, "%s reply expected 202 OK", elURL)
 }
 
 func TestGETCall(t *testing.T) {