From e68b9d00a6e05b3a941f63ffb696f91e554ac5ec Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel@debian.org>
Date: Fri, 18 Oct 2024 20:33:49 +0200
Subject: Adding upstream version 9.0.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>
---
 services/markup/processorhelper.go | 87 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 services/markup/processorhelper.go

(limited to 'services/markup/processorhelper.go')

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
+		},
+	}
+}
-- 
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