Adding upstream version 9.0.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

3 files changed, 158 insertions, 0 deletions

diff --git a/services/markup/main_test.go b/services/markup/main_test.go
new file mode 100644
index 0000000..89fe3e7
--- /dev/null
+++ b/services/markup/main_test.go
@@ -0,0 +1,16 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package markup
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m, &unittest.TestOptions{
+		FixtureFiles: []string{"user.yml"},
+	})
+}
diff --git a/services/markup/processorhelper.go b/services/markup/processorhelper.go
new file mode 100644
index 0000000..40bf1d6
--- /dev/null
+++ b/services/markup/processorhelper.go
@@ -0,0 +1,87 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package markup
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/perm/access"
+	"code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/gitrepo"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/markup"
+	gitea_context "code.gitea.io/gitea/services/context"
+	file_service "code.gitea.io/gitea/services/repository/files"
+)
+
+func ProcessorHelper() *markup.ProcessorHelper {
+	return &markup.ProcessorHelper{
+		ElementDir: "auto", // set dir="auto" for necessary (eg: <p>, <h?>, etc) tags
+		IsUsernameMentionable: func(ctx context.Context, username string) bool {
+			mentionedUser, err := user.GetUserByName(ctx, username)
+			if err != nil {
+				return false
+			}
+
+			giteaCtx, ok := ctx.(*gitea_context.Context)
+			if !ok {
+				// when using general context, use user's visibility to check
+				return mentionedUser.Visibility.IsPublic()
+			}
+
+			// when using gitea context (web context), use user's visibility and user's permission to check
+			return user.IsUserVisibleToViewer(giteaCtx, mentionedUser, giteaCtx.Doer)
+		},
+		GetRepoFileBlob: func(ctx context.Context, ownerName, repoName, commitSha, filePath string, language *string) (*git.Blob, error) {
+			repo, err := repo.GetRepositoryByOwnerAndName(ctx, ownerName, repoName)
+			if err != nil {
+				return nil, err
+			}
+
+			var user *user.User
+
+			giteaCtx, ok := ctx.(*gitea_context.Context)
+			if ok {
+				user = giteaCtx.Doer
+			}
+
+			perms, err := access.GetUserRepoPermission(ctx, repo, user)
+			if err != nil {
+				return nil, err
+			}
+			if !perms.CanRead(unit.TypeCode) {
+				return nil, fmt.Errorf("cannot access repository code")
+			}
+
+			gitRepo, err := gitrepo.OpenRepository(ctx, repo)
+			if err != nil {
+				return nil, err
+			}
+			defer gitRepo.Close()
+
+			commit, err := gitRepo.GetCommit(commitSha)
+			if err != nil {
+				return nil, err
+			}
+
+			if language != nil {
+				*language, err = file_service.TryGetContentLanguage(gitRepo, commitSha, filePath)
+				if err != nil {
+					log.Error("Unable to get file language for %-v:%s. Error: %v", repo, filePath, err)
+				}
+			}
+
+			blob, err := commit.GetBlobByPath(filePath)
+			if err != nil {
+				return nil, err
+			}
+
+			return blob, nil
+		},
+	}
+}
diff --git a/services/markup/processorhelper_test.go b/services/markup/processorhelper_test.go
new file mode 100644
index 0000000..fafde74
--- /dev/null
+++ b/services/markup/processorhelper_test.go
@@ -0,0 +1,55 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package markup
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/models/user"
+	gitea_context "code.gitea.io/gitea/services/context"
+	"code.gitea.io/gitea/services/contexttest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProcessorHelper(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	userPublic := "user1"
+	userPrivate := "user31"
+	userLimited := "user33"
+	userNoSuch := "no-such-user"
+
+	unittest.AssertCount(t, &user.User{Name: userPublic}, 1)
+	unittest.AssertCount(t, &user.User{Name: userPrivate}, 1)
+	unittest.AssertCount(t, &user.User{Name: userLimited}, 1)
+	unittest.AssertCount(t, &user.User{Name: userNoSuch}, 0)
+
+	// when using general context, use user's visibility to check
+	assert.True(t, ProcessorHelper().IsUsernameMentionable(context.Background(), userPublic))
+	assert.False(t, ProcessorHelper().IsUsernameMentionable(context.Background(), userLimited))
+	assert.False(t, ProcessorHelper().IsUsernameMentionable(context.Background(), userPrivate))
+	assert.False(t, ProcessorHelper().IsUsernameMentionable(context.Background(), userNoSuch))
+
+	// when using web context, use user.IsUserVisibleToViewer to check
+	req, err := http.NewRequest("GET", "/", nil)
+	require.NoError(t, err)
+	base, baseCleanUp := gitea_context.NewBaseContext(httptest.NewRecorder(), req)
+	defer baseCleanUp()
+	giteaCtx := gitea_context.NewWebContext(base, &contexttest.MockRender{}, nil)
+
+	assert.True(t, ProcessorHelper().IsUsernameMentionable(giteaCtx, userPublic))
+	assert.False(t, ProcessorHelper().IsUsernameMentionable(giteaCtx, userPrivate))
+
+	giteaCtx.Doer, err = user.GetUserByName(db.DefaultContext, userPrivate)
+	require.NoError(t, err)
+	assert.True(t, ProcessorHelper().IsUsernameMentionable(giteaCtx, userPublic))
+	assert.True(t, ProcessorHelper().IsUsernameMentionable(giteaCtx, userPrivate))
+}