API pull's head/base have correct permission (#17214)

close #17181

* for all pull requests API return permissions of caller
* for all webhook return empty permissions

Signed-off-by: Danila Kryukov <pricly_yellow@dismail.de>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: 6543 <6543@obermui.de>

4 files changed, 34 insertions, 22 deletions

diff --git a/modules/convert/pull.go b/modules/convert/pull.go
index 6c5d15c82e..ab17c13421 100644
--- a/modules/convert/pull.go
+++ b/modules/convert/pull.go
@@ -17,7 +17,7 @@ import (
 // ToAPIPullRequest assumes following fields have been assigned with valid values:
 // Required - Issue
 // Optional - Merger
-func ToAPIPullRequest(pr *models.PullRequest) *api.PullRequest {
+func ToAPIPullRequest(pr *models.PullRequest, doer *models.User) *api.PullRequest {
 	var (
 		baseBranch *git.Branch
 		headBranch *git.Branch
@@ -41,6 +41,12 @@ func ToAPIPullRequest(pr *models.PullRequest) *api.PullRequest {
 		return nil
 	}
 
+	perm, err := models.GetUserRepoPermission(pr.BaseRepo, doer)
+	if err != nil {
+		log.Error("GetUserRepoPermission[%d]: %v", pr.BaseRepoID, err)
+		perm.AccessMode = models.AccessModeNone
+	}
+
 	apiPullRequest := &api.PullRequest{
 		ID:        pr.ID,
 		URL:       pr.Issue.HTMLURL(),
@@ -68,7 +74,7 @@ func ToAPIPullRequest(pr *models.PullRequest) *api.PullRequest {
 			Name:       pr.BaseBranch,
 			Ref:        pr.BaseBranch,
 			RepoID:     pr.BaseRepoID,
-			Repository: ToRepo(pr.BaseRepo, models.AccessModeNone),
+			Repository: ToRepo(pr.BaseRepo, perm.AccessMode),
 		},
 		Head: &api.PRBranchInfo{
 			Name:   pr.HeadBranch,
@@ -114,8 +120,14 @@ func ToAPIPullRequest(pr *models.PullRequest) *api.PullRequest {
 	}
 
 	if pr.HeadRepo != nil && pr.Flow == models.PullRequestFlowGithub {
+		perm, err := models.GetUserRepoPermission(pr.HeadRepo, doer)
+		if err != nil {
+			log.Error("GetUserRepoPermission[%d]: %v", pr.HeadRepoID, err)
+			perm.AccessMode = models.AccessModeNone
+		}
+
 		apiPullRequest.Head.RepoID = pr.HeadRepo.ID
-		apiPullRequest.Head.Repository = ToRepo(pr.HeadRepo, models.AccessModeNone)
+		apiPullRequest.Head.Repository = ToRepo(pr.HeadRepo, perm.AccessMode)
 
 		headGitRepo, err := git.OpenRepository(pr.HeadRepo.RepoPath())
 		if err != nil {
diff --git a/modules/convert/pull_test.go b/modules/convert/pull_test.go
index 655fc76329..a2b1e12a37 100644
--- a/modules/convert/pull_test.go
+++ b/modules/convert/pull_test.go
@@ -21,14 +21,14 @@ func TestPullRequest_APIFormat(t *testing.T) {
 	pr := db.AssertExistsAndLoadBean(t, &models.PullRequest{ID: 1}).(*models.PullRequest)
 	assert.NoError(t, pr.LoadAttributes())
 	assert.NoError(t, pr.LoadIssue())
-	apiPullRequest := ToAPIPullRequest(pr)
+	apiPullRequest := ToAPIPullRequest(pr, nil)
 	assert.NotNil(t, apiPullRequest)
 	assert.EqualValues(t, &structs.PRBranchInfo{
 		Name:       "branch1",
 		Ref:        "refs/pull/2/head",
 		Sha:        "4a357436d925b5c974181ff12a994538ddc5a269",
 		RepoID:     1,
-		Repository: ToRepo(headRepo, models.AccessModeNone),
+		Repository: ToRepo(headRepo, models.AccessModeRead),
 	}, apiPullRequest.Head)
 
 	//withOut HeadRepo
@@ -38,7 +38,7 @@ func TestPullRequest_APIFormat(t *testing.T) {
 	// simulate fork deletion
 	pr.HeadRepo = nil
 	pr.HeadRepoID = 100000
-	apiPullRequest = ToAPIPullRequest(pr)
+	apiPullRequest = ToAPIPullRequest(pr, nil)
 	assert.NotNil(t, apiPullRequest)
 	assert.Nil(t, apiPullRequest.Head.Repository)
 	assert.EqualValues(t, -1, apiPullRequest.Head.RepoID)
diff --git a/modules/notification/webhook/webhook.go b/modules/notification/webhook/webhook.go
index acdb91efe3..c767acf134 100644
--- a/modules/notification/webhook/webhook.go
+++ b/modules/notification/webhook/webhook.go
@@ -51,7 +51,7 @@ func (m *webhookNotifier) NotifyIssueClearLabels(doer *models.User, issue *model
 		err = webhook_services.PrepareWebhooks(issue.Repo, models.HookEventPullRequestLabel, &api.PullRequestPayload{
 			Action:      api.HookIssueLabelCleared,
 			Index:       issue.Index,
-			PullRequest: convert.ToAPIPullRequest(issue.PullRequest),
+			PullRequest: convert.ToAPIPullRequest(issue.PullRequest, nil),
 			Repository:  convert.ToRepo(issue.Repo, mode),
 			Sender:      convert.ToUser(doer, nil),
 		})
@@ -145,7 +145,7 @@ func (m *webhookNotifier) NotifyIssueChangeAssignee(doer *models.User, issue *mo
 		issue.PullRequest.Issue = issue
 		apiPullRequest := &api.PullRequestPayload{
 			Index:       issue.Index,
-			PullRequest: convert.ToAPIPullRequest(issue.PullRequest),
+			PullRequest: convert.ToAPIPullRequest(issue.PullRequest, nil),
 			Repository:  convert.ToRepo(issue.Repo, mode),
 			Sender:      convert.ToUser(doer, nil),
 		}
@@ -197,7 +197,7 @@ func (m *webhookNotifier) NotifyIssueChangeTitle(doer *models.User, issue *model
 					From: oldTitle,
 				},
 			},
-			PullRequest: convert.ToAPIPullRequest(issue.PullRequest),
+			PullRequest: convert.ToAPIPullRequest(issue.PullRequest, nil),
 			Repository:  convert.ToRepo(issue.Repo, mode),
 			Sender:      convert.ToUser(doer, nil),
 		})
@@ -232,7 +232,7 @@ func (m *webhookNotifier) NotifyIssueChangeStatus(doer *models.User, issue *mode
 		// Merge pull request calls issue.changeStatus so we need to handle separately.
 		apiPullRequest := &api.PullRequestPayload{
 			Index:       issue.Index,
-			PullRequest: convert.ToAPIPullRequest(issue.PullRequest),
+			PullRequest: convert.ToAPIPullRequest(issue.PullRequest, nil),
 			Repository:  convert.ToRepo(issue.Repo, mode),
 			Sender:      convert.ToUser(doer, nil),
 		}
@@ -301,7 +301,7 @@ func (m *webhookNotifier) NotifyNewPullRequest(pull *models.PullRequest, mention
 	if err := webhook_services.PrepareWebhooks(pull.Issue.Repo, models.HookEventPullRequest, &api.PullRequestPayload{
 		Action:      api.HookIssueOpened,
 		Index:       pull.Issue.Index,
-		PullRequest: convert.ToAPIPullRequest(pull),
+		PullRequest: convert.ToAPIPullRequest(pull, nil),
 		Repository:  convert.ToRepo(pull.Issue.Repo, mode),
 		Sender:      convert.ToUser(pull.Issue.Poster, nil),
 	}); err != nil {
@@ -322,7 +322,7 @@ func (m *webhookNotifier) NotifyIssueChangeContent(doer *models.User, issue *mod
 					From: oldContent,
 				},
 			},
-			PullRequest: convert.ToAPIPullRequest(issue.PullRequest),
+			PullRequest: convert.ToAPIPullRequest(issue.PullRequest, nil),
 			Repository:  convert.ToRepo(issue.Repo, mode),
 			Sender:      convert.ToUser(doer, nil),
 		})
@@ -500,7 +500,7 @@ func (m *webhookNotifier) NotifyIssueChangeLabels(doer *models.User, issue *mode
 		err = webhook_services.PrepareWebhooks(issue.Repo, models.HookEventPullRequestLabel, &api.PullRequestPayload{
 			Action:      api.HookIssueLabelUpdated,
 			Index:       issue.Index,
-			PullRequest: convert.ToAPIPullRequest(issue.PullRequest),
+			PullRequest: convert.ToAPIPullRequest(issue.PullRequest, nil),
 			Repository:  convert.ToRepo(issue.Repo, models.AccessModeNone),
 			Sender:      convert.ToUser(doer, nil),
 		})
@@ -542,7 +542,7 @@ func (m *webhookNotifier) NotifyIssueChangeMilestone(doer *models.User, issue *m
 		err = webhook_services.PrepareWebhooks(issue.Repo, models.HookEventPullRequestMilestone, &api.PullRequestPayload{
 			Action:      hookAction,
 			Index:       issue.Index,
-			PullRequest: convert.ToAPIPullRequest(issue.PullRequest),
+			PullRequest: convert.ToAPIPullRequest(issue.PullRequest, nil),
 			Repository:  convert.ToRepo(issue.Repo, mode),
 			Sender:      convert.ToUser(doer, nil),
 		})
@@ -609,7 +609,7 @@ func (*webhookNotifier) NotifyMergePullRequest(pr *models.PullRequest, doer *mod
 	// Merge pull request calls issue.changeStatus so we need to handle separately.
 	apiPullRequest := &api.PullRequestPayload{
 		Index:       pr.Issue.Index,
-		PullRequest: convert.ToAPIPullRequest(pr),
+		PullRequest: convert.ToAPIPullRequest(pr, nil),
 		Repository:  convert.ToRepo(pr.Issue.Repo, mode),
 		Sender:      convert.ToUser(doer, nil),
 		Action:      api.HookIssueClosed,
@@ -642,7 +642,7 @@ func (m *webhookNotifier) NotifyPullRequestChangeTargetBranch(doer *models.User,
 				From: oldBranch,
 			},
 		},
-		PullRequest: convert.ToAPIPullRequest(issue.PullRequest),
+		PullRequest: convert.ToAPIPullRequest(issue.PullRequest, nil),
 		Repository:  convert.ToRepo(issue.Repo, mode),
 		Sender:      convert.ToUser(doer, nil),
 	})
@@ -681,7 +681,7 @@ func (m *webhookNotifier) NotifyPullRequestReview(pr *models.PullRequest, review
 	if err := webhook_services.PrepareWebhooks(review.Issue.Repo, reviewHookType, &api.PullRequestPayload{
 		Action:      api.HookIssueReviewed,
 		Index:       review.Issue.Index,
-		PullRequest: convert.ToAPIPullRequest(pr),
+		PullRequest: convert.ToAPIPullRequest(pr, nil),
 		Repository:  convert.ToRepo(review.Issue.Repo, mode),
 		Sender:      convert.ToUser(review.Reviewer, nil),
 		Review: &api.ReviewPayload{
@@ -736,7 +736,7 @@ func (m *webhookNotifier) NotifyPullRequestSynchronized(doer *models.User, pr *m
 	if err := webhook_services.PrepareWebhooks(pr.Issue.Repo, models.HookEventPullRequestSync, &api.PullRequestPayload{
 		Action:      api.HookIssueSynchronized,
 		Index:       pr.Issue.Index,
-		PullRequest: convert.ToAPIPullRequest(pr),
+		PullRequest: convert.ToAPIPullRequest(pr, nil),
 		Repository:  convert.ToRepo(pr.Issue.Repo, models.AccessModeNone),
 		Sender:      convert.ToUser(doer, nil),
 	}); err != nil {
diff --git a/routers/api/v1/repo/pull.go b/routers/api/v1/repo/pull.go
index 6718224d7d..d8e0d8099a 100644
--- a/routers/api/v1/repo/pull.go
+++ b/routers/api/v1/repo/pull.go
@@ -115,7 +115,7 @@ func ListPullRequests(ctx *context.APIContext) {
 			ctx.Error(http.StatusInternalServerError, "LoadHeadRepo", err)
 			return
 		}
-		apiPrs[i] = convert.ToAPIPullRequest(prs[i])
+		apiPrs[i] = convert.ToAPIPullRequest(prs[i], ctx.User)
 	}
 
 	ctx.SetLinkHeader(int(maxResults), listOptions.PageSize)
@@ -171,7 +171,7 @@ func GetPullRequest(ctx *context.APIContext) {
 		ctx.Error(http.StatusInternalServerError, "LoadHeadRepo", err)
 		return
 	}
-	ctx.JSON(http.StatusOK, convert.ToAPIPullRequest(pr))
+	ctx.JSON(http.StatusOK, convert.ToAPIPullRequest(pr, ctx.User))
 }
 
 // DownloadPullDiffOrPatch render a pull's raw diff or patch
@@ -417,7 +417,7 @@ func CreatePullRequest(ctx *context.APIContext) {
 	}
 
 	log.Trace("Pull request created: %d/%d", repo.ID, prIssue.ID)
-	ctx.JSON(http.StatusCreated, convert.ToAPIPullRequest(pr))
+	ctx.JSON(http.StatusCreated, convert.ToAPIPullRequest(pr, ctx.User))
 }
 
 // EditPullRequest does what it says
@@ -624,7 +624,7 @@ func EditPullRequest(ctx *context.APIContext) {
 	}
 
 	// TODO this should be 200, not 201
-	ctx.JSON(http.StatusCreated, convert.ToAPIPullRequest(pr))
+	ctx.JSON(http.StatusCreated, convert.ToAPIPullRequest(pr, ctx.User))
 }
 
 // IsPullRequestMerged checks if a PR exists given an index