Fix incorrect message id for releaes email (#30825)

Make generateMessageIDForRelease outputs the same format as
generateMessageIDForIssue (old `createReference`)

services/mailer/mail.go

@@ -289,8 +289,8 @@ func composeIssueCommentMessages(ctx *mailCommentContext, lang string, recipient
 	}
 
 	// Make sure to compose independent messages to avoid leaking user emails
-	msgID := createReference(ctx.Issue, ctx.Comment, ctx.ActionType)
-	reference := createReference(ctx.Issue, nil, activities_model.ActionType(0))
+	msgID := generateMessageIDForIssue(ctx.Issue, ctx.Comment, ctx.ActionType)
+	reference := generateMessageIDForIssue(ctx.Issue, nil, activities_model.ActionType(0))
 
 	var replyPayload []byte
 	if ctx.Comment != nil {
@@ -362,7 +362,7 @@ func composeIssueCommentMessages(ctx *mailCommentContext, lang string, recipient
 	return msgs, nil
 }
 
-func createReference(issue *issues_model.Issue, comment *issues_model.Comment, actionType activities_model.ActionType) string {
+func generateMessageIDForIssue(issue *issues_model.Issue, comment *issues_model.Comment, actionType activities_model.ActionType) string {
 	var path string
 	if issue.IsPull {
 		path = "pulls"
@@ -389,6 +389,10 @@ func createReference(issue *issues_model.Issue, comment *issues_model.Comment, a
 	return fmt.Sprintf("<%s/%s/%d%s@%s>", issue.Repo.FullName(), path, issue.Index, extra, setting.Domain)
 }
 
+func generateMessageIDForRelease(release *repo_model.Release) string {
+	return fmt.Sprintf("<%s/releases/%d@%s>", release.Repo.FullName(), release.ID, setting.Domain)
+}
+
 func generateAdditionalHeaders(ctx *mailCommentContext, reason string, recipient *user_model.User) map[string]string {
 	repo := ctx.Issue.Repo
 

services/mailer/mail_release.go

@@ -86,11 +86,11 @@ func mailNewRelease(ctx context.Context, lang string, tos []string, rel *repo_mo
 
 	msgs := make([]*Message, 0, len(tos))
 	publisherName := rel.Publisher.DisplayName()
-	relURL := "<" + rel.HTMLURL() + ">"
+	msgID := generateMessageIDForRelease(rel)
 	for _, to := range tos {
 		msg := NewMessageFrom(to, publisherName, setting.MailService.FromEmail, subject, mailBody.String())
 		msg.Info = subject
-		msg.SetHeader("Message-ID", relURL)
+		msg.SetHeader("Message-ID", msgID)
 		msgs = append(msgs, msg)
 	}
 

services/mailer/mail_test.go

@@ -288,7 +288,7 @@ func TestGenerateAdditionalHeaders(t *testing.T) {
 	}
 }
 
-func Test_createReference(t *testing.T) {
+func TestGenerateMessageIDForIssue(t *testing.T) {
 	_, _, issue, comment := prepareMailerTest(t)
 	_, _, pullIssue, _ := prepareMailerTest(t)
 	pullIssue.IsPull = true
@@ -388,10 +388,18 @@ func Test_createReference(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got := createReference(tt.args.issue, tt.args.comment, tt.args.actionType)
+			got := generateMessageIDForIssue(tt.args.issue, tt.args.comment, tt.args.actionType)
 			if !strings.HasPrefix(got, tt.prefix) {
-				t.Errorf("createReference() = %v, want %v", got, tt.prefix)
+				t.Errorf("generateMessageIDForIssue() = %v, want %v", got, tt.prefix)
 			}
 		})
 	}
 }
+
+func TestGenerateMessageIDForRelease(t *testing.T) {
+	msgID := generateMessageIDForRelease(&repo_model.Release{
+		ID:   1,
+		Repo: &repo_model.Repository{OwnerName: "owner", Name: "repo"},
+	})
+	assert.Equal(t, "<owner/repo/releases/1@localhost>", msgID)
+}