Refactor markup render system (#32612)

This PR removes (almost) all path tricks, and introduces "renderhelper"
package.

Now we can clearly see the rendering behaviors for comment/file/wiki,
more details are in "renderhelper" tests.

Fix #31411 , fix #18592, fix #25632 and maybe more problems. (ps: fix
#32608 by the way)

assets/go-licenses.json

@@ -1090,8 +1090,8 @@
     "licenseText": "MIT License\n\nCopyright (c) 2017 Asher\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n"
   },
   {
-    "name": "github.com/stretchr/testify/assert",
-    "path": "github.com/stretchr/testify/assert/LICENSE",
+    "name": "github.com/stretchr/testify",
+    "path": "github.com/stretchr/testify/LICENSE",
     "licenseText": "MIT License\n\nCopyright (c) 2012-2020 Mat Ryer, Tyler Bunnell and contributors.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n"
   },
   {

models/activities/action.go

@@ -200,7 +200,7 @@ func (a *Action) LoadActUser(ctx context.Context) {
 	}
 }
 
-func (a *Action) loadRepo(ctx context.Context) {
+func (a *Action) LoadRepo(ctx context.Context) {
 	if a.Repo != nil {
 		return
 	}
@@ -250,7 +250,7 @@ func (a *Action) GetActDisplayNameTitle(ctx context.Context) string {
 
 // GetRepoUserName returns the name of the action repository owner.
 func (a *Action) GetRepoUserName(ctx context.Context) string {
-	a.loadRepo(ctx)
+	a.LoadRepo(ctx)
 	if a.Repo == nil {
 		return "(non-existing-repo)"
 	}
@@ -265,7 +265,7 @@ func (a *Action) ShortRepoUserName(ctx context.Context) string {
 
 // GetRepoName returns the name of the action repository.
 func (a *Action) GetRepoName(ctx context.Context) string {
-	a.loadRepo(ctx)
+	a.LoadRepo(ctx)
 	if a.Repo == nil {
 		return "(non-existing-repo)"
 	}
@@ -644,7 +644,7 @@ func NotifyWatchers(ctx context.Context, actions ...*Action) error {
 		}
 
 		if repoChanged {
-			act.loadRepo(ctx)
+			act.LoadRepo(ctx)
 			repo = act.Repo
 
 			// check repo owner exist.

models/issues/comment_code.go

@@ -7,8 +7,8 @@ import (
 	"context"
 
 	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/renderhelper"
 	user_model "code.gitea.io/gitea/models/user"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 
 	"xorm.io/builder"
@@ -112,12 +112,8 @@ func findCodeComments(ctx context.Context, opts FindCommentsOptions, issue *Issu
 		}
 
 		var err error
-		rctx := markup.NewRenderContext(ctx).
-			WithRepoFacade(issue.Repo).
-			WithLinks(markup.Links{Base: issue.Repo.Link()}).
-			WithMetas(issue.Repo.ComposeMetas(ctx))
-		if comment.RenderedContent, err = markdown.RenderString(rctx,
-			comment.Content); err != nil {
+		rctx := renderhelper.NewRenderContextRepoComment(ctx, issue.Repo)
+		if comment.RenderedContent, err = markdown.RenderString(rctx, comment.Content); err != nil {
 			return nil, err
 		}
 	}

models/renderhelper/commit_checker.go

@@ -0,0 +1,53 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"io"
+
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/gitrepo"
+	"code.gitea.io/gitea/modules/log"
+)
+
+type commitChecker struct {
+	ctx           context.Context
+	commitCache   map[string]bool
+	gitRepoFacade gitrepo.Repository
+
+	gitRepo       *git.Repository
+	gitRepoCloser io.Closer
+}
+
+func newCommitChecker(ctx context.Context, gitRepo gitrepo.Repository) *commitChecker {
+	return &commitChecker{ctx: ctx, commitCache: make(map[string]bool), gitRepoFacade: gitRepo}
+}
+
+func (c *commitChecker) Close() error {
+	if c != nil && c.gitRepoCloser != nil {
+		return c.gitRepoCloser.Close()
+	}
+	return nil
+}
+
+func (c *commitChecker) IsCommitIDExisting(commitID string) bool {
+	exist, inCache := c.commitCache[commitID]
+	if inCache {
+		return exist
+	}
+
+	if c.gitRepo == nil {
+		r, closer, err := gitrepo.RepositoryFromContextOrOpen(c.ctx, c.gitRepoFacade)
+		if err != nil {
+			log.Error("unable to open repository: %s Error: %v", gitrepo.RepoGitURL(c.gitRepoFacade), err)
+			return false
+		}
+		c.gitRepo, c.gitRepoCloser = r, closer
+	}
+
+	exist = c.gitRepo.IsReferenceExist(commitID) // Don't use IsObjectExist since it doesn't support short hashs with gogit edition.
+	c.commitCache[commitID] = exist
+	return exist
+}

models/renderhelper/main_test.go

@@ -0,0 +1,27 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/markup"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m, &unittest.TestOptions{
+		FixtureFiles: []string{"repository.yml", "user.yml"},
+		SetUp: func() error {
+			markup.RenderBehaviorForTesting.DisableAdditionalAttributes = true
+			markup.Init(&markup.RenderHelperFuncs{
+				IsUsernameMentionable: func(ctx context.Context, username string) bool {
+					return username == "user2"
+				},
+			})
+			return nil
+		},
+	})
+}

models/renderhelper/repo_comment.go

@@ -0,0 +1,73 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"fmt"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/util"
+)
+
+type RepoComment struct {
+	ctx  *markup.RenderContext
+	opts RepoCommentOptions
+
+	commitChecker *commitChecker
+	repoLink      string
+}
+
+func (r *RepoComment) CleanUp() {
+	_ = r.commitChecker.Close()
+}
+
+func (r *RepoComment) IsCommitIDExisting(commitID string) bool {
+	return r.commitChecker.IsCommitIDExisting(commitID)
+}
+
+func (r *RepoComment) ResolveLink(link string, likeType markup.LinkType) (finalLink string) {
+	switch likeType {
+	case markup.LinkTypeApp:
+		finalLink = r.ctx.ResolveLinkApp(link)
+	default:
+		finalLink = r.ctx.ResolveLinkRelative(r.repoLink, r.opts.CurrentRefPath, link)
+	}
+	return finalLink
+}
+
+var _ markup.RenderHelper = (*RepoComment)(nil)
+
+type RepoCommentOptions struct {
+	DeprecatedRepoName  string // it is only a patch for the non-standard "markup" api
+	DeprecatedOwnerName string // it is only a patch for the non-standard "markup" api
+	CurrentRefPath      string // eg: "branch/main" or "commit/11223344"
+}
+
+func NewRenderContextRepoComment(ctx context.Context, repo *repo_model.Repository, opts ...RepoCommentOptions) *markup.RenderContext {
+	helper := &RepoComment{
+		repoLink: repo.Link(),
+		opts:     util.OptionalArg(opts),
+	}
+	rctx := markup.NewRenderContext(ctx)
+	helper.ctx = rctx
+	if repo != nil {
+		helper.repoLink = repo.Link()
+		helper.commitChecker = newCommitChecker(ctx, repo)
+		rctx = rctx.WithMetas(repo.ComposeMetas(ctx))
+	} else {
+		// this is almost dead code, only to pass the incorrect tests
+		helper.repoLink = fmt.Sprintf("%s/%s", helper.opts.DeprecatedOwnerName, helper.opts.DeprecatedRepoName)
+		rctx = rctx.WithMetas(map[string]string{
+			"user": helper.opts.DeprecatedOwnerName,
+			"repo": helper.opts.DeprecatedRepoName,
+
+			"markdownLineBreakStyle":       "comment",
+			"markupAllowShortIssuePattern": "true",
+		})
+	}
+	rctx = rctx.WithHelper(helper)
+	return rctx
+}

models/renderhelper/repo_comment_test.go

@@ -0,0 +1,76 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"testing"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/markup/markdown"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRepoComment(t *testing.T) {
+	unittest.PrepareTestEnv(t)
+
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	t.Run("AutoLink", func(t *testing.T) {
+		rctx := NewRenderContextRepoComment(context.Background(), repo1).WithMarkupType(markdown.MarkupName)
+		rendered, err := markup.RenderString(rctx, `
+65f1bf27bc3bf70f64657658635e66094edbcb4d
+#1
+@user2
+`)
+		assert.NoError(t, err)
+		assert.Equal(t,
+			`<p><a href="/user2/repo1/commit/65f1bf27bc3bf70f64657658635e66094edbcb4d" rel="nofollow"><code>65f1bf27bc</code></a><br/>
+<a href="/user2/repo1/issues/1" class="ref-issue" rel="nofollow">#1</a><br/>
+<a href="/user2" rel="nofollow">@user2</a></p>
+`, rendered)
+	})
+
+	t.Run("AbsoluteAndRelative", func(t *testing.T) {
+		rctx := NewRenderContextRepoComment(context.Background(), repo1).WithMarkupType(markdown.MarkupName)
+
+		// It is Gitea's old behavior, the relative path is resolved to the repo path
+		// It is different from GitHub, GitHub resolves relative links to current page's path
+		rendered, err := markup.RenderString(rctx, `
+[/test](/test)
+[./test](./test)
+![/image](/image)
+![./image](./image)
+`)
+		assert.NoError(t, err)
+		assert.Equal(t,
+			`<p><a href="/user2/repo1/test" rel="nofollow">/test</a><br/>
+<a href="/user2/repo1/test" rel="nofollow">./test</a><br/>
+<a href="/user2/repo1/image" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/image" alt="/image"/></a><br/>
+<a href="/user2/repo1/image" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/image" alt="./image"/></a></p>
+`, rendered)
+	})
+
+	t.Run("WithCurrentRefPath", func(t *testing.T) {
+		rctx := NewRenderContextRepoComment(context.Background(), repo1, RepoCommentOptions{CurrentRefPath: "/commit/1234"}).
+			WithMarkupType(markdown.MarkupName)
+
+		// the ref path is only used to render commit message: a commit message is rendered at the commit page with its commit ID path
+		rendered, err := markup.RenderString(rctx, `
+[/test](/test)
+[./test](./test)
+![/image](/image)
+![./image](./image)
+`)
+		assert.NoError(t, err)
+		assert.Equal(t, `<p><a href="/user2/repo1/test" rel="nofollow">/test</a><br/>
+<a href="/user2/repo1/commit/1234/test" rel="nofollow">./test</a><br/>
+<a href="/user2/repo1/image" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/image" alt="/image"/></a><br/>
+<a href="/user2/repo1/commit/1234/image" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/commit/1234/image" alt="./image"/></a></p>
+`, rendered)
+	})
+}

models/renderhelper/repo_file.go

@@ -0,0 +1,77 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"fmt"
+	"path"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/util"
+)
+
+type RepoFile struct {
+	ctx  *markup.RenderContext
+	opts RepoFileOptions
+
+	commitChecker *commitChecker
+	repoLink      string
+}
+
+func (r *RepoFile) CleanUp() {
+	_ = r.commitChecker.Close()
+}
+
+func (r *RepoFile) IsCommitIDExisting(commitID string) bool {
+	return r.commitChecker.IsCommitIDExisting(commitID)
+}
+
+func (r *RepoFile) ResolveLink(link string, likeType markup.LinkType) string {
+	finalLink := link
+	switch likeType {
+	case markup.LinkTypeApp:
+		finalLink = r.ctx.ResolveLinkApp(link)
+	case markup.LinkTypeDefault:
+		finalLink = r.ctx.ResolveLinkRelative(path.Join(r.repoLink, "src", r.opts.CurrentRefPath), r.opts.CurrentTreePath, link)
+	case markup.LinkTypeRaw:
+		finalLink = r.ctx.ResolveLinkRelative(path.Join(r.repoLink, "raw", r.opts.CurrentRefPath), r.opts.CurrentTreePath, link)
+	case markup.LinkTypeMedia:
+		finalLink = r.ctx.ResolveLinkRelative(path.Join(r.repoLink, "media", r.opts.CurrentRefPath), r.opts.CurrentTreePath, link)
+	}
+	return finalLink
+}
+
+var _ markup.RenderHelper = (*RepoFile)(nil)
+
+type RepoFileOptions struct {
+	DeprecatedRepoName  string // it is only a patch for the non-standard "markup" api
+	DeprecatedOwnerName string // it is only a patch for the non-standard "markup" api
+
+	CurrentRefPath  string // eg: "branch/main"
+	CurrentTreePath string // eg: "path/to/file" in the repo
+}
+
+func NewRenderContextRepoFile(ctx context.Context, repo *repo_model.Repository, opts ...RepoFileOptions) *markup.RenderContext {
+	helper := &RepoFile{opts: util.OptionalArg(opts)}
+	rctx := markup.NewRenderContext(ctx)
+	helper.ctx = rctx
+	if repo != nil {
+		helper.repoLink = repo.Link()
+		helper.commitChecker = newCommitChecker(ctx, repo)
+		rctx = rctx.WithMetas(repo.ComposeDocumentMetas(ctx))
+	} else {
+		// this is almost dead code, only to pass the incorrect tests
+		helper.repoLink = fmt.Sprintf("%s/%s", helper.opts.DeprecatedOwnerName, helper.opts.DeprecatedRepoName)
+		rctx = rctx.WithMetas(map[string]string{
+			"user": helper.opts.DeprecatedOwnerName,
+			"repo": helper.opts.DeprecatedRepoName,
+
+			"markdownLineBreakStyle": "document",
+		})
+	}
+	rctx = rctx.WithHelper(helper)
+	return rctx
+}

models/renderhelper/repo_file_test.go

@@ -0,0 +1,83 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"testing"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/markup/markdown"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRepoFile(t *testing.T) {
+	unittest.PrepareTestEnv(t)
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	t.Run("AutoLink", func(t *testing.T) {
+		rctx := NewRenderContextRepoFile(context.Background(), repo1).WithMarkupType(markdown.MarkupName)
+		rendered, err := markup.RenderString(rctx, `
+65f1bf27bc3bf70f64657658635e66094edbcb4d
+#1
+@user2
+`)
+		assert.NoError(t, err)
+		assert.Equal(t,
+			`<p><a href="/user2/repo1/commit/65f1bf27bc3bf70f64657658635e66094edbcb4d" rel="nofollow"><code>65f1bf27bc</code></a>
+#1
+<a href="/user2" rel="nofollow">@user2</a></p>
+`, rendered)
+	})
+
+	t.Run("AbsoluteAndRelative", func(t *testing.T) {
+		rctx := NewRenderContextRepoFile(context.Background(), repo1, RepoFileOptions{CurrentRefPath: "branch/main"}).
+			WithMarkupType(markdown.MarkupName)
+		rendered, err := markup.RenderString(rctx, `
+[/test](/test)
+[./test](./test)
+![/image](/image)
+![./image](./image)
+`)
+		assert.NoError(t, err)
+		assert.Equal(t,
+			`<p><a href="/user2/repo1/src/branch/main/test" rel="nofollow">/test</a>
+<a href="/user2/repo1/src/branch/main/test" rel="nofollow">./test</a>
+<a href="/user2/repo1/media/branch/main/image" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/media/branch/main/image" alt="/image"/></a>
+<a href="/user2/repo1/media/branch/main/image" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/media/branch/main/image" alt="./image"/></a></p>
+`, rendered)
+	})
+
+	t.Run("WithCurrentRefPath", func(t *testing.T) {
+		rctx := NewRenderContextRepoFile(context.Background(), repo1, RepoFileOptions{CurrentRefPath: "/commit/1234"}).
+			WithMarkupType(markdown.MarkupName)
+		rendered, err := markup.RenderString(rctx, `
+[/test](/test)
+![/image](/image)
+`)
+		assert.NoError(t, err)
+		assert.Equal(t, `<p><a href="/user2/repo1/src/commit/1234/test" rel="nofollow">/test</a>
+<a href="/user2/repo1/media/commit/1234/image" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/media/commit/1234/image" alt="/image"/></a></p>
+`, rendered)
+	})
+
+	t.Run("WithCurrentRefPathByTag", func(t *testing.T) {
+		rctx := NewRenderContextRepoFile(context.Background(), repo1, RepoFileOptions{
+			CurrentRefPath:  "/commit/1234",
+			CurrentTreePath: "my-dir",
+		}).
+			WithMarkupType(markdown.MarkupName)
+		rendered, err := markup.RenderString(rctx, `
+<img src="LINK">
+<video src="LINK">
+`)
+		assert.NoError(t, err)
+		assert.Equal(t, `<a href="/user2/repo1/media/commit/1234/my-dir/LINK" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/media/commit/1234/my-dir/LINK"/></a>
+<video src="/user2/repo1/media/commit/1234/my-dir/LINK">
+</video>`, rendered)
+	})
+}

models/renderhelper/repo_wiki.go

@@ -0,0 +1,80 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"fmt"
+	"path"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/markup/markdown"
+	"code.gitea.io/gitea/modules/util"
+)
+
+type RepoWiki struct {
+	ctx  *markup.RenderContext
+	opts RepoWikiOptions
+
+	commitChecker *commitChecker
+	repoLink      string
+}
+
+func (r *RepoWiki) CleanUp() {
+	_ = r.commitChecker.Close()
+}
+
+func (r *RepoWiki) IsCommitIDExisting(commitID string) bool {
+	return r.commitChecker.IsCommitIDExisting(commitID)
+}
+
+func (r *RepoWiki) ResolveLink(link string, likeType markup.LinkType) string {
+	finalLink := link
+	switch likeType {
+	case markup.LinkTypeApp:
+		finalLink = r.ctx.ResolveLinkApp(link)
+	case markup.LinkTypeDefault:
+		finalLink = r.ctx.ResolveLinkRelative(path.Join(r.repoLink, "wiki", r.opts.currentRefPath), r.opts.currentTreePath, link)
+	case markup.LinkTypeMedia:
+		finalLink = r.ctx.ResolveLinkRelative(path.Join(r.repoLink, "wiki/raw", r.opts.currentRefPath), r.opts.currentTreePath, link)
+	case markup.LinkTypeRaw: // wiki doesn't use it
+	}
+
+	return finalLink
+}
+
+var _ markup.RenderHelper = (*RepoWiki)(nil)
+
+type RepoWikiOptions struct {
+	DeprecatedRepoName  string // it is only a patch for the non-standard "markup" api
+	DeprecatedOwnerName string // it is only a patch for the non-standard "markup" api
+
+	// these options are not used at the moment because Wiki doesn't support sub-path, nor branch
+	currentRefPath  string // eg: "branch/main"
+	currentTreePath string // eg: "path/to/file" in the repo
+}
+
+func NewRenderContextRepoWiki(ctx context.Context, repo *repo_model.Repository, opts ...RepoWikiOptions) *markup.RenderContext {
+	helper := &RepoWiki{opts: util.OptionalArg(opts)}
+	rctx := markup.NewRenderContext(ctx).WithMarkupType(markdown.MarkupName)
+	if repo != nil {
+		helper.repoLink = repo.Link()
+		helper.commitChecker = newCommitChecker(ctx, repo)
+		rctx = rctx.WithMetas(repo.ComposeWikiMetas(ctx))
+	} else {
+		// this is almost dead code, only to pass the incorrect tests
+		helper.repoLink = fmt.Sprintf("%s/%s", helper.opts.DeprecatedOwnerName, helper.opts.DeprecatedRepoName)
+		rctx = rctx.WithMetas(map[string]string{
+			"user": helper.opts.DeprecatedOwnerName,
+			"repo": helper.opts.DeprecatedRepoName,
+
+			"markdownLineBreakStyle":       "document",
+			"markupAllowShortIssuePattern": "true",
+		})
+	}
+	rctx = rctx.WithHelper(helper)
+	helper.ctx = rctx
+	return rctx
+}

models/renderhelper/repo_wiki_test.go

@@ -0,0 +1,65 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"testing"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/markup/markdown"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRepoWiki(t *testing.T) {
+	unittest.PrepareTestEnv(t)
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	t.Run("AutoLink", func(t *testing.T) {
+		rctx := NewRenderContextRepoWiki(context.Background(), repo1).WithMarkupType(markdown.MarkupName)
+		rendered, err := markup.RenderString(rctx, `
+65f1bf27bc3bf70f64657658635e66094edbcb4d
+#1
+@user2
+`)
+		assert.NoError(t, err)
+		assert.Equal(t,
+			`<p><a href="/user2/repo1/commit/65f1bf27bc3bf70f64657658635e66094edbcb4d" rel="nofollow"><code>65f1bf27bc</code></a>
+<a href="/user2/repo1/issues/1" class="ref-issue" rel="nofollow">#1</a>
+<a href="/user2" rel="nofollow">@user2</a></p>
+`, rendered)
+	})
+
+	t.Run("AbsoluteAndRelative", func(t *testing.T) {
+		rctx := NewRenderContextRepoWiki(context.Background(), repo1).WithMarkupType(markdown.MarkupName)
+		rendered, err := markup.RenderString(rctx, `
+[/test](/test)
+[./test](./test)
+![/image](/image)
+![./image](./image)
+`)
+		assert.NoError(t, err)
+		assert.Equal(t,
+			`<p><a href="/user2/repo1/wiki/test" rel="nofollow">/test</a>
+<a href="/user2/repo1/wiki/test" rel="nofollow">./test</a>
+<a href="/user2/repo1/wiki/raw/image" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/wiki/raw/image" alt="/image"/></a>
+<a href="/user2/repo1/wiki/raw/image" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/wiki/raw/image" alt="./image"/></a></p>
+`, rendered)
+	})
+
+	t.Run("PathInTag", func(t *testing.T) {
+		rctx := NewRenderContextRepoWiki(context.Background(), repo1).WithMarkupType(markdown.MarkupName)
+		rendered, err := markup.RenderString(rctx, `
+<img src="LINK">
+<video src="LINK">
+`)
+		assert.NoError(t, err)
+		assert.Equal(t, `<a href="/user2/repo1/wiki/raw/LINK" target="_blank" rel="nofollow noopener"><img src="/user2/repo1/wiki/raw/LINK"/></a>
+<video src="/user2/repo1/wiki/raw/LINK">
+</video>`, rendered)
+	})
+}

models/renderhelper/simple_document.go

@@ -0,0 +1,29 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/modules/markup"
+)
+
+type SimpleDocument struct {
+	*markup.SimpleRenderHelper
+	ctx      *markup.RenderContext
+	baseLink string
+}
+
+func (r *SimpleDocument) ResolveLink(link string, likeType markup.LinkType) string {
+	return r.ctx.ResolveLinkRelative(r.baseLink, "", link)
+}
+
+var _ markup.RenderHelper = (*SimpleDocument)(nil)
+
+func NewRenderContextSimpleDocument(ctx context.Context, baseLink string) *markup.RenderContext {
+	helper := &SimpleDocument{baseLink: baseLink}
+	rctx := markup.NewRenderContext(ctx).WithHelper(helper).WithMetas(markup.ComposeSimpleDocumentMetas())
+	helper.ctx = rctx
+	return rctx
+}

models/renderhelper/simple_document_test.go

@@ -0,0 +1,40 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package renderhelper
+
+import (
+	"context"
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/markup/markdown"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSimpleDocument(t *testing.T) {
+	unittest.PrepareTestEnv(t)
+	rctx := NewRenderContextSimpleDocument(context.Background(), "/base").WithMarkupType(markdown.MarkupName)
+	rendered, err := markup.RenderString(rctx, `
+65f1bf27bc3bf70f64657658635e66094edbcb4d
+#1
+@user2
+
+[/test](/test)
+[./test](./test)
+![/image](/image)
+![./image](./image)
+`)
+	assert.NoError(t, err)
+	assert.Equal(t,
+		`<p>65f1bf27bc3bf70f64657658635e66094edbcb4d
+#1
+<a href="/base/user2" rel="nofollow">@user2</a></p>
+<p><a href="/base/test" rel="nofollow">/test</a>
+<a href="/base/test" rel="nofollow">./test</a>
+<a href="/base/image" target="_blank" rel="nofollow noopener"><img src="/base/image" alt="/image"/></a>
+<a href="/base/image" target="_blank" rel="nofollow noopener"><img src="/base/image" alt="./image"/></a></p>
+`, rendered)
+}

models/unittest/unit_tests.go

@@ -9,6 +9,7 @@ import (
 	"code.gitea.io/gitea/models/db"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 	"xorm.io/builder"
 )
 
@@ -64,10 +65,10 @@ func BeanExists(t assert.TestingT, bean any, conditions ...any) bool {
 }
 
 // AssertExistsAndLoadBean assert that a bean exists and load it from the test database
-func AssertExistsAndLoadBean[T any](t assert.TestingT, bean T, conditions ...any) T {
+func AssertExistsAndLoadBean[T any](t require.TestingT, bean T, conditions ...any) T {
 	exists, err := LoadBeanIfExists(bean, conditions...)
-	assert.NoError(t, err)
-	assert.True(t, exists,
+	require.NoError(t, err)
+	require.True(t, exists,
 		"Expected to find %+v (of type %T, with conditions %+v), but did not",
 		bean, bean, conditions)
 	return bean

modules/markup/csv/csv.go

@@ -133,7 +133,7 @@ func (r Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.W
 	// Check if maxRows or maxSize is reached, and if true, warn.
 	if (row >= maxRows && maxRows != 0) || (rd.InputOffset() >= maxSize && maxSize != 0) {
 		warn := `<table class="data-table"><tr><td>`
-		rawLink := ` <a href="` + ctx.RenderOptions.Links.RawLink() + `/` + util.PathEscapeSegments(ctx.RenderOptions.RelativePath) + `">`
+		rawLink := ` <a href="` + ctx.RenderHelper.ResolveLink(util.PathEscapeSegments(ctx.RenderOptions.RelativePath), markup.LinkTypeRaw) + `">`
 
 		// Try to get the user translation
 		if locale, ok := ctx.Value(translation.ContextKey).(translation.Locale); ok {

modules/markup/external/external.go

@@ -79,8 +79,8 @@ func envMark(envName string) string {
 func (p *Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error {
 	var (
 		command = strings.NewReplacer(
-			envMark("GITEA_PREFIX_SRC"), ctx.RenderOptions.Links.SrcLink(),
-			envMark("GITEA_PREFIX_RAW"), ctx.RenderOptions.Links.RawLink(),
+			envMark("GITEA_PREFIX_SRC"), ctx.RenderHelper.ResolveLink("", markup.LinkTypeDefault),
+			envMark("GITEA_PREFIX_RAW"), ctx.RenderHelper.ResolveLink("", markup.LinkTypeRaw),
 		).Replace(p.Command)
 		commands = strings.Fields(command)
 		args     = commands[1:]
@@ -112,14 +112,14 @@ func (p *Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.
 		args = append(args, f.Name())
 	}
 
-	processCtx, _, finished := process.GetManager().AddContext(ctx, fmt.Sprintf("Render [%s] for %s", commands[0], ctx.RenderOptions.Links.SrcLink()))
+	processCtx, _, finished := process.GetManager().AddContext(ctx, fmt.Sprintf("Render [%s] for %s", commands[0], ctx.RenderHelper.ResolveLink("", markup.LinkTypeDefault)))
 	defer finished()
 
 	cmd := exec.CommandContext(processCtx, commands[0], args...)
 	cmd.Env = append(
 		os.Environ(),
-		"GITEA_PREFIX_SRC="+ctx.RenderOptions.Links.SrcLink(),
-		"GITEA_PREFIX_RAW="+ctx.RenderOptions.Links.RawLink(),
+		"GITEA_PREFIX_SRC="+ctx.RenderHelper.ResolveLink("", markup.LinkTypeDefault),
+		"GITEA_PREFIX_RAW="+ctx.RenderHelper.ResolveLink("", markup.LinkTypeRaw),
 	)
 	if !p.IsInputFile {
 		cmd.Stdin = input

modules/markup/html.go

@@ -260,7 +260,6 @@ func RenderEmoji(ctx *RenderContext, content string) (string, error) {
 }
 
 func postProcess(ctx *RenderContext, procs []processor, input io.Reader, output io.Writer) error {
-	defer ctx.Cancel()
 	// FIXME: don't read all content to memory
 	rawHTML, err := io.ReadAll(input)
 	if err != nil {
@@ -396,7 +395,7 @@ func createLink(ctx *RenderContext, href, content, class string) *html.Node {
 		Data: atom.A.String(),
 		Attr: []html.Attribute{{Key: "href", Val: href}},
 	}
-	if !RenderBehaviorForTesting.DisableInternalAttributes {
+	if !RenderBehaviorForTesting.DisableAdditionalAttributes {
 		a.Attr = append(a.Attr, html.Attribute{Key: "data-markdown-generated-content"})
 	}
 	if class != "" {

modules/markup/html_codepreview.go

@@ -51,7 +51,7 @@ func renderCodeBlock(ctx *RenderContext, node *html.Node) (urlPosStart, urlPosSt
 	lineStart, _ := strconv.Atoi(strings.TrimPrefix(lineStartStr, "L"))
 	lineStop, _ := strconv.Atoi(strings.TrimPrefix(lineStopStr, "L"))
 	opts.LineStart, opts.LineStop = lineStart, lineStop
-	h, err := DefaultProcessorHelper.RenderRepoFileCodePreview(ctx, opts)
+	h, err := DefaultRenderHelperFuncs.RenderRepoFileCodePreview(ctx, opts)
 	return m[0], m[1], h, err
 }
 

modules/markup/html_codepreview_test.go

@@ -16,16 +16,16 @@ import (
 )
 
 func TestRenderCodePreview(t *testing.T) {
-	markup.Init(&markup.ProcessorHelper{
-		RenderRepoFileCodePreview: func(ctx context.Context, opts markup.RenderCodePreviewOptions) (template.HTML, error) {
+	markup.Init(&markup.RenderHelperFuncs{
+		RenderRepoFileCodePreview: func(ctx context.Context, options markup.RenderCodePreviewOptions) (template.HTML, error) {
 			return "<div>code preview</div>", nil
 		},
 	})
 	test := func(input, expected string) {
-		buffer, err := markup.RenderString(markup.NewRenderContext(context.Background()).WithMarkupType(markdown.MarkupName), input)
+		buffer, err := markup.RenderString(markup.NewTestRenderContext().WithMarkupType(markdown.MarkupName), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
 	}
 	test("http://localhost:3000/owner/repo/src/commit/0123456789/foo/bar.md#L10-L20", "<p><div>code preview</div></p>")
-	test("http://other/owner/repo/src/commit/0123456789/foo/bar.md#L10-L20", `<p><a href="http://other/owner/repo/src/commit/0123456789/foo/bar.md#L10-L20" data-markdown-generated-content="" rel="nofollow">http://other/owner/repo/src/commit/0123456789/foo/bar.md#L10-L20</a></p>`)
+	test("http://other/owner/repo/src/commit/0123456789/foo/bar.md#L10-L20", `<p><a href="http://other/owner/repo/src/commit/0123456789/foo/bar.md#L10-L20" rel="nofollow">http://other/owner/repo/src/commit/0123456789/foo/bar.md#L10-L20</a></p>`)
 }

modules/markup/html_commit.go

@@ -4,13 +4,10 @@
 package markup
 
 import (
-	"io"
 	"slices"
 	"strings"
 
 	"code.gitea.io/gitea/modules/base"
-	"code.gitea.io/gitea/modules/gitrepo"
-	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/util"
 
 	"golang.org/x/net/html"
@@ -163,15 +160,12 @@ func comparePatternProcessor(ctx *RenderContext, node *html.Node) {
 // hashCurrentPatternProcessor renders SHA1 strings to corresponding links that
 // are assumed to be in the same repository.
 func hashCurrentPatternProcessor(ctx *RenderContext, node *html.Node) {
-	if ctx.RenderOptions.Metas == nil || ctx.RenderOptions.Metas["user"] == "" || ctx.RenderOptions.Metas["repo"] == "" || (ctx.RenderHelper.repoFacade == nil && ctx.RenderHelper.gitRepo == nil) {
+	if ctx.RenderOptions.Metas == nil || ctx.RenderOptions.Metas["user"] == "" || ctx.RenderOptions.Metas["repo"] == "" || ctx.RenderHelper == nil {
 		return
 	}
 
 	start := 0
 	next := node.NextSibling
-	if ctx.RenderHelper.shaExistCache == nil {
-		ctx.RenderHelper.shaExistCache = make(map[string]bool)
-	}
 	for node != nil && node != next && start < len(node.Data) {
 		m := globalVars().hashCurrentPattern.FindStringSubmatchIndex(node.Data[start:])
 		if m == nil {
@@ -189,35 +183,12 @@ func hashCurrentPatternProcessor(ctx *RenderContext, node *html.Node) {
 		// as used by git and github for linking and thus we have to do similar.
 		// Because of this, we check to make sure that a matched hash is actually
 		// a commit in the repository before making it a link.
-
-		// check cache first
-		exist, inCache := ctx.RenderHelper.shaExistCache[hash]
-		if !inCache {
-			if ctx.RenderHelper.gitRepo == nil {
-				var err error
-				var closer io.Closer
-				ctx.RenderHelper.gitRepo, closer, err = gitrepo.RepositoryFromContextOrOpen(ctx, ctx.RenderHelper.repoFacade)
-				if err != nil {
-					log.Error("unable to open repository: %s Error: %v", gitrepo.RepoGitURL(ctx.RenderHelper.repoFacade), err)
-					return
-				}
-				ctx.AddCancel(func() {
-					_ = closer.Close()
-					ctx.RenderHelper.gitRepo = nil
-				})
-			}
-
-			// Don't use IsObjectExist since it doesn't support short hashs with gogit edition.
-			exist = ctx.RenderHelper.gitRepo.IsReferenceExist(hash)
-			ctx.RenderHelper.shaExistCache[hash] = exist
-		}
-
-		if !exist {
+		if !ctx.RenderHelper.IsCommitIDExisting(hash) {
 			start = m[3]
 			continue
 		}
 
-		link := util.URLJoin(ctx.RenderOptions.Links.Prefix(), ctx.RenderOptions.Metas["user"], ctx.RenderOptions.Metas["repo"], "commit", hash)
+		link := ctx.RenderHelper.ResolveLink(util.URLJoin(ctx.RenderOptions.Metas["user"], ctx.RenderOptions.Metas["repo"], "commit", hash), LinkTypeApp)
 		replaceContent(node, m[2], m[3], createCodeLink(link, base.ShortSha(hash), "commit"))
 		start = 0
 		node = node.NextSibling.NextSibling

modules/markup/html_internal_test.go

@@ -4,7 +4,6 @@
 package markup
 
 import (
-	"context"
 	"fmt"
 	"strconv"
 	"strings"
@@ -34,8 +33,7 @@ func numericIssueLink(baseURL, class string, index int, marker string) string {
 
 // link an HTML link
 func link(href, class, contents string) string {
-	extra := ` data-markdown-generated-content=""`
-	extra += util.Iif(class != "", ` class="`+class+`"`, "")
+	extra := util.Iif(class != "", ` class="`+class+`"`, "")
 	return fmt.Sprintf(`<a href="%s"%s>%s</a>`, href, extra, contents)
 }
 
@@ -69,22 +67,11 @@ var localMetas = map[string]string{
 	"markupAllowShortIssuePattern": "true",
 }
 
-var localWikiMetas = map[string]string{
-	"user":              "test-owner",
-	"repo":              "test-repo",
-	"markupContentMode": "wiki",
-}
-
 func TestRender_IssueIndexPattern(t *testing.T) {
 	// numeric: render inputs without valid mentions
 	test := func(s string) {
-		testRenderIssueIndexPattern(t, s, s, &RenderContext{
-			ctx: context.Background(),
-		})
-		testRenderIssueIndexPattern(t, s, s, &RenderContext{
-			ctx:           context.Background(),
-			RenderOptions: RenderOptions{Metas: numericMetas},
-		})
+		testRenderIssueIndexPattern(t, s, s, NewTestRenderContext())
+		testRenderIssueIndexPattern(t, s, s, NewTestRenderContext(numericMetas))
 	}
 
 	// should not render anything when there are no mentions
@@ -132,10 +119,7 @@ func TestRender_IssueIndexPattern2(t *testing.T) {
 			links[i] = numericIssueLink(util.URLJoin(TestRepoURL, path), "ref-issue", index, marker)
 		}
 		expectedNil := fmt.Sprintf(expectedFmt, links...)
-		testRenderIssueIndexPattern(t, s, expectedNil, &RenderContext{
-			ctx:           context.Background(),
-			RenderOptions: RenderOptions{Metas: localMetas},
-		})
+		testRenderIssueIndexPattern(t, s, expectedNil, NewTestRenderContext(TestAppURL, localMetas))
 
 		class := "ref-issue"
 		if isExternal {
@@ -146,10 +130,7 @@ func TestRender_IssueIndexPattern2(t *testing.T) {
 			links[i] = numericIssueLink(prefix, class, index, marker)
 		}
 		expectedNum := fmt.Sprintf(expectedFmt, links...)
-		testRenderIssueIndexPattern(t, s, expectedNum, &RenderContext{
-			ctx:           context.Background(),
-			RenderOptions: RenderOptions{Metas: numericMetas},
-		})
+		testRenderIssueIndexPattern(t, s, expectedNum, NewTestRenderContext(TestAppURL, numericMetas))
 	}
 
 	// should render freestanding mentions
@@ -183,10 +164,7 @@ func TestRender_IssueIndexPattern3(t *testing.T) {
 
 	// alphanumeric: render inputs without valid mentions
 	test := func(s string) {
-		testRenderIssueIndexPattern(t, s, s, &RenderContext{
-			ctx:           context.Background(),
-			RenderOptions: RenderOptions{Metas: alphanumericMetas},
-		})
+		testRenderIssueIndexPattern(t, s, s, NewTestRenderContext(alphanumericMetas))
 	}
 	test("")
 	test("this is a test")
@@ -216,10 +194,7 @@ func TestRender_IssueIndexPattern4(t *testing.T) {
 			links[i] = externalIssueLink("https://someurl.com/someUser/someRepo/", "ref-issue ref-external-issue", name)
 		}
 		expected := fmt.Sprintf(expectedFmt, links...)
-		testRenderIssueIndexPattern(t, s, expected, &RenderContext{
-			ctx:           context.Background(),
-			RenderOptions: RenderOptions{Metas: alphanumericMetas},
-		})
+		testRenderIssueIndexPattern(t, s, expected, NewTestRenderContext(alphanumericMetas))
 	}
 	test("OTT-1234 test", "%s test", "OTT-1234")
 	test("test T-12 issue", "test %s issue", "T-12")
@@ -239,10 +214,7 @@ func TestRender_IssueIndexPattern5(t *testing.T) {
 		}
 
 		expected := fmt.Sprintf(expectedFmt, links...)
-		testRenderIssueIndexPattern(t, s, expected, &RenderContext{
-			ctx:           context.Background(),
-			RenderOptions: RenderOptions{Metas: metas},
-		})
+		testRenderIssueIndexPattern(t, s, expected, NewTestRenderContext(metas))
 	}
 
 	test("abc ISSUE-123 def", "abc %s def",
@@ -263,10 +235,7 @@ func TestRender_IssueIndexPattern5(t *testing.T) {
 		[]string{"ISSUE-123"},
 	)
 
-	testRenderIssueIndexPattern(t, "will not match", "will not match", &RenderContext{
-		ctx:           context.Background(),
-		RenderOptions: RenderOptions{Metas: regexpMetas},
-	})
+	testRenderIssueIndexPattern(t, "will not match", "will not match", NewTestRenderContext(regexpMetas))
 }
 
 func TestRender_IssueIndexPattern_NoShortPattern(t *testing.T) {
@@ -278,18 +247,9 @@ func TestRender_IssueIndexPattern_NoShortPattern(t *testing.T) {
 		"style":  IssueNameStyleNumeric,
 	}
 
-	testRenderIssueIndexPattern(t, "#1", "#1", &RenderContext{
-		ctx:           context.Background(),
-		RenderOptions: RenderOptions{Metas: metas},
-	})
-	testRenderIssueIndexPattern(t, "#1312", "#1312", &RenderContext{
-		ctx:           context.Background(),
-		RenderOptions: RenderOptions{Metas: metas},
-	})
-	testRenderIssueIndexPattern(t, "!1", "!1", &RenderContext{
-		ctx:           context.Background(),
-		RenderOptions: RenderOptions{Metas: metas},
-	})
+	testRenderIssueIndexPattern(t, "#1", "#1", NewTestRenderContext(metas))
+	testRenderIssueIndexPattern(t, "#1312", "#1312", NewTestRenderContext(metas))
+	testRenderIssueIndexPattern(t, "!1", "!1", NewTestRenderContext(metas))
 }
 
 func TestRender_RenderIssueTitle(t *testing.T) {
@@ -300,20 +260,12 @@ func TestRender_RenderIssueTitle(t *testing.T) {
 		"repo":   "someRepo",
 		"style":  IssueNameStyleNumeric,
 	}
-	actual, err := RenderIssueTitle(&RenderContext{
-		ctx:           context.Background(),
-		RenderOptions: RenderOptions{Metas: metas},
-	}, "#1")
+	actual, err := RenderIssueTitle(NewTestRenderContext(metas), "#1")
 	assert.NoError(t, err)
 	assert.Equal(t, "#1", actual)
 }
 
 func testRenderIssueIndexPattern(t *testing.T, input, expected string, ctx *RenderContext) {
-	ctx.RenderOptions.Links.AbsolutePrefix = true
-	if ctx.RenderOptions.Links.Base == "" {
-		ctx.RenderOptions.Links.Base = TestRepoURL
-	}
-
 	var buf strings.Builder
 	err := postProcess(ctx, []processor{issueIndexPatternProcessor}, strings.NewReader(input), &buf)
 	assert.NoError(t, err)
@@ -325,20 +277,12 @@ func TestRender_AutoLink(t *testing.T) {
 
 	test := func(input, expected string) {
 		var buffer strings.Builder
-		err := PostProcess(&RenderContext{
-			ctx: context.Background(),
-
-			RenderOptions: RenderOptions{Metas: localMetas, Links: Links{Base: TestRepoURL}},
-		}, strings.NewReader(input), &buffer)
+		err := PostProcess(NewTestRenderContext(localMetas), strings.NewReader(input), &buffer)
 		assert.Equal(t, err, nil)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer.String()))
 
 		buffer.Reset()
-		err = PostProcess(&RenderContext{
-			ctx: context.Background(),
-
-			RenderOptions: RenderOptions{Metas: localWikiMetas, Links: Links{Base: TestRepoURL}},
-		}, strings.NewReader(input), &buffer)
+		err = PostProcess(NewTestRenderContext(localMetas), strings.NewReader(input), &buffer)
 		assert.Equal(t, err, nil)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer.String()))
 	}
@@ -360,14 +304,10 @@ func TestRender_AutoLink(t *testing.T) {
 
 func TestRender_FullIssueURLs(t *testing.T) {
 	setting.AppURL = TestAppURL
-	defer testModule.MockVariableValue(&RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer testModule.MockVariableValue(&RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	test := func(input, expected string) {
 		var result strings.Builder
-		err := postProcess(&RenderContext{
-			ctx: context.Background(),
-
-			RenderOptions: RenderOptions{Metas: localMetas, Links: Links{Base: TestRepoURL}},
-		}, []processor{fullIssuePatternProcessor}, strings.NewReader(input), &result)
+		err := postProcess(NewTestRenderContext(localMetas), []processor{fullIssuePatternProcessor}, strings.NewReader(input), &result)
 		assert.NoError(t, err)
 		assert.Equal(t, expected, result.String())
 	}

modules/markup/html_issue.go

@@ -136,9 +136,11 @@ func issueIndexPatternProcessor(ctx *RenderContext, node *html.Node) {
 			// Gitea will redirect on click as appropriate.
 			issuePath := util.Iif(ref.IsPull, "pulls", "issues")
 			if ref.Owner == "" {
-				link = createLink(ctx, util.URLJoin(ctx.RenderOptions.Links.Prefix(), ctx.RenderOptions.Metas["user"], ctx.RenderOptions.Metas["repo"], issuePath, ref.Issue), reftext, "ref-issue")
+				linkHref := ctx.RenderHelper.ResolveLink(util.URLJoin(ctx.RenderOptions.Metas["user"], ctx.RenderOptions.Metas["repo"], issuePath, ref.Issue), LinkTypeApp)
+				link = createLink(ctx, linkHref, reftext, "ref-issue")
 			} else {
-				link = createLink(ctx, util.URLJoin(ctx.RenderOptions.Links.Prefix(), ref.Owner, ref.Name, issuePath, ref.Issue), reftext, "ref-issue")
+				linkHref := ctx.RenderHelper.ResolveLink(util.URLJoin(ref.Owner, ref.Name, issuePath, ref.Issue), LinkTypeApp)
+				link = createLink(ctx, linkHref, reftext, "ref-issue")
 			}
 		}
 
@@ -177,7 +179,8 @@ func commitCrossReferencePatternProcessor(ctx *RenderContext, node *html.Node) {
 		}
 
 		reftext := ref.Owner + "/" + ref.Name + "@" + base.ShortSha(ref.CommitSha)
-		link := createLink(ctx, util.URLJoin(ctx.RenderOptions.Links.Prefix(), ref.Owner, ref.Name, "commit", ref.CommitSha), reftext, "commit")
+		linkHref := ctx.RenderHelper.ResolveLink(util.URLJoin(ref.Owner, ref.Name, "commit", ref.CommitSha), LinkTypeApp)
+		link := createLink(ctx, linkHref, reftext, "commit")
 
 		replaceContent(node, ref.RefLocation.Start, ref.RefLocation.End, link)
 		node = node.NextSibling.NextSibling

modules/markup/html_link.go

@@ -6,37 +6,14 @@ package markup
 import (
 	"net/url"
 	"path"
-	"path/filepath"
 	"strings"
 
 	"code.gitea.io/gitea/modules/markup/common"
-	"code.gitea.io/gitea/modules/util"
 
 	"golang.org/x/net/html"
 	"golang.org/x/net/html/atom"
 )
 
-func ResolveLink(ctx *RenderContext, link, userContentAnchorPrefix string) (result string, resolved bool) {
-	isAnchorFragment := link != "" && link[0] == '#'
-	if !isAnchorFragment && !IsFullURLString(link) {
-		linkBase := ctx.RenderOptions.Links.Base
-		if ctx.IsMarkupContentWiki() {
-			// no need to check if the link should be resolved as a wiki link or a wiki raw link
-			// just use wiki link here, and it will be redirected to a wiki raw link if necessary
-			linkBase = ctx.RenderOptions.Links.WikiLink()
-		} else if ctx.RenderOptions.Links.BranchPath != "" || ctx.RenderOptions.Links.TreePath != "" {
-			// if there is no BranchPath, then the link will be something like "/owner/repo/src/{the-file-path}"
-			// and then this link will be handled by the "legacy-ref" code and be redirected to the default branch like "/owner/repo/src/branch/main/{the-file-path}"
-			linkBase = ctx.RenderOptions.Links.SrcLink()
-		}
-		link, resolved = util.URLJoin(linkBase, link), true
-	}
-	if isAnchorFragment && userContentAnchorPrefix != "" {
-		link, resolved = userContentAnchorPrefix+link[1:], true
-	}
-	return link, resolved
-}
-
 func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
 	next := node.NextSibling
 	for node != nil && node != next {
@@ -116,7 +93,7 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
 
 		name += tail
 		image := false
-		ext := filepath.Ext(link)
+		ext := path.Ext(link)
 		switch ext {
 		// fast path: empty string, ignore
 		case "":
@@ -139,6 +116,7 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
 			if image {
 				link = strings.ReplaceAll(link, " ", "+")
 			} else {
+				// the hacky wiki name encoding: space to "-"
 				link = strings.ReplaceAll(link, " ", "-") // FIXME: it should support dashes in the link, eg: "the-dash-support.-"
 			}
 			if !strings.Contains(link, "/") {
@@ -146,9 +124,7 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
 			}
 		}
 		if image {
-			if !absoluteLink {
-				link = util.URLJoin(ctx.RenderOptions.Links.ResolveMediaLink(ctx.IsMarkupContentWiki()), link)
-			}
+			link = ctx.RenderHelper.ResolveLink(link, LinkTypeMedia)
 			title := props["title"]
 			if title == "" {
 				title = props["alt"]
@@ -174,7 +150,7 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
 				childNode.Attr = childNode.Attr[:2]
 			}
 		} else {
-			link, _ = ResolveLink(ctx, link, "")
+			link = ctx.RenderHelper.ResolveLink(link, LinkTypeDefault)
 			childNode.Type = html.TextNode
 			childNode.Data = name
 		}

modules/markup/html_mention.go

@@ -33,7 +33,8 @@ func mentionProcessor(ctx *RenderContext, node *html.Node) {
 		if ok && strings.Contains(mention, "/") {
 			mentionOrgAndTeam := strings.Split(mention, "/")
 			if mentionOrgAndTeam[0][1:] == ctx.RenderOptions.Metas["org"] && strings.Contains(teams, ","+strings.ToLower(mentionOrgAndTeam[1])+",") {
-				replaceContent(node, loc.Start, loc.End, createLink(ctx, util.URLJoin(ctx.RenderOptions.Links.Prefix(), "org", ctx.RenderOptions.Metas["org"], "teams", mentionOrgAndTeam[1]), mention, "" /*mention*/))
+				link := ctx.RenderHelper.ResolveLink(util.URLJoin("org", ctx.RenderOptions.Metas["org"], "teams", mentionOrgAndTeam[1]), LinkTypeApp)
+				replaceContent(node, loc.Start, loc.End, createLink(ctx, link, mention, "" /*mention*/))
 				node = node.NextSibling.NextSibling
 				start = 0
 				continue
@@ -43,8 +44,9 @@ func mentionProcessor(ctx *RenderContext, node *html.Node) {
 		}
 		mentionedUsername := mention[1:]
 
-		if DefaultProcessorHelper.IsUsernameMentionable != nil && DefaultProcessorHelper.IsUsernameMentionable(ctx, mentionedUsername) {
-			replaceContent(node, loc.Start, loc.End, createLink(ctx, util.URLJoin(ctx.RenderOptions.Links.Prefix(), mentionedUsername), mention, "" /*mention*/))
+		if DefaultRenderHelperFuncs != nil && DefaultRenderHelperFuncs.IsUsernameMentionable(ctx, mentionedUsername) {
+			link := ctx.RenderHelper.ResolveLink(mentionedUsername, LinkTypeApp)
+			replaceContent(node, loc.Start, loc.End, createLink(ctx, link, mention, "" /*mention*/))
 			node = node.NextSibling.NextSibling
 			start = 0
 		} else {

modules/markup/html_node.go

@@ -4,8 +4,6 @@
 package markup
 
 import (
-	"code.gitea.io/gitea/modules/util"
-
 	"golang.org/x/net/html"
 )
 
@@ -17,7 +15,7 @@ func visitNodeImg(ctx *RenderContext, img *html.Node) (next *html.Node) {
 		}
 
 		if IsNonEmptyRelativePath(attr.Val) {
-			attr.Val = util.URLJoin(ctx.RenderOptions.Links.ResolveMediaLink(ctx.IsMarkupContentWiki()), attr.Val)
+			attr.Val = ctx.RenderHelper.ResolveLink(attr.Val, LinkTypeMedia)
 
 			// By default, the "<img>" tag should also be clickable,
 			// because frontend use `<img>` to paste the re-scaled image into the markdown,
@@ -53,7 +51,7 @@ func visitNodeVideo(ctx *RenderContext, node *html.Node) (next *html.Node) {
 			continue
 		}
 		if IsNonEmptyRelativePath(attr.Val) {
-			attr.Val = util.URLJoin(ctx.RenderOptions.Links.ResolveMediaLink(ctx.IsMarkupContentWiki()), attr.Val)
+			attr.Val = ctx.RenderHelper.ResolveLink(attr.Val, LinkTypeMedia)
 		}
 		attr.Val = camoHandleLink(attr.Val)
 		node.Attr[i] = attr

modules/markup/html_test.go

@@ -9,7 +9,6 @@ import (
 	"testing"
 
 	"code.gitea.io/gitea/modules/emoji"
-	"code.gitea.io/gitea/modules/gitrepo"
 	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/setting"
@@ -22,44 +21,13 @@ import (
 var (
 	testRepoOwnerName = "user13"
 	testRepoName      = "repo11"
-	localMetas        = map[string]string{
-		"user": testRepoOwnerName,
-		"repo": testRepoName,
-	}
-	localWikiMetas = map[string]string{
-		"user":              testRepoOwnerName,
-		"repo":              testRepoName,
-		"markupContentMode": "wiki",
-	}
+	localMetas        = map[string]string{"user": testRepoOwnerName, "repo": testRepoName}
 )
 
-type mockRepo struct {
-	OwnerName string
-	RepoName  string
-}
-
-func (m *mockRepo) GetOwnerName() string {
-	return m.OwnerName
-}
-
-func (m *mockRepo) GetName() string {
-	return m.RepoName
-}
-
-func newMockRepo(ownerName, repoName string) gitrepo.Repository {
-	return &mockRepo{
-		OwnerName: ownerName,
-		RepoName:  repoName,
-	}
-}
-
 func TestRender_Commits(t *testing.T) {
-	setting.AppURL = markup.TestAppURL
 	test := func(input, expected string) {
-		buffer, err := markup.RenderString(markup.NewTestRenderContext("a.md", localMetas, newMockRepo(testRepoOwnerName, testRepoName), markup.Links{
-			AbsolutePrefix: true,
-			Base:           markup.TestRepoURL,
-		}), input)
+		rctx := markup.NewTestRenderContext(markup.TestAppURL, localMetas).WithRelativePath("a.md")
+		buffer, err := markup.RenderString(rctx, input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
 	}
@@ -102,14 +70,10 @@ func TestRender_Commits(t *testing.T) {
 }
 
 func TestRender_CrossReferences(t *testing.T) {
-	setting.AppURL = markup.TestAppURL
-	defer testModule.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer testModule.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	test := func(input, expected string) {
-		buffer, err := markup.RenderString(markup.NewTestRenderContext("a.md", localMetas,
-			markup.Links{
-				AbsolutePrefix: true,
-				Base:           setting.AppSubURL,
-			}), input)
+		rctx := markup.NewTestRenderContext(markup.TestAppURL, localMetas).WithRelativePath("a.md")
+		buffer, err := markup.RenderString(rctx, input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
 	}
@@ -141,9 +105,9 @@ func TestRender_CrossReferences(t *testing.T) {
 
 func TestRender_links(t *testing.T) {
 	setting.AppURL = markup.TestAppURL
-	defer testModule.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer testModule.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	test := func(input, expected string) {
-		buffer, err := markup.RenderString(markup.NewTestRenderContext("a.md", markup.Links{Base: markup.TestRepoURL}), input)
+		buffer, err := markup.RenderString(markup.NewTestRenderContext().WithRelativePath("a.md"), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
 	}
@@ -246,9 +210,9 @@ func TestRender_links(t *testing.T) {
 
 func TestRender_email(t *testing.T) {
 	setting.AppURL = markup.TestAppURL
-	defer testModule.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer testModule.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	test := func(input, expected string) {
-		res, err := markup.RenderString(markup.NewTestRenderContext("a.md", markup.Links{Base: markup.TestRepoURL}), input)
+		res, err := markup.RenderString(markup.NewTestRenderContext().WithRelativePath("a.md"), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(res))
 	}
@@ -315,7 +279,7 @@ func TestRender_emoji(t *testing.T) {
 
 	test := func(input, expected string) {
 		expected = strings.ReplaceAll(expected, "&", "&")
-		buffer, err := markup.RenderString(markup.NewTestRenderContext("a.md", markup.Links{Base: markup.TestRepoURL}), input)
+		buffer, err := markup.RenderString(markup.NewTestRenderContext().WithRelativePath("a.md"), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
 	}
@@ -374,188 +338,133 @@ func TestRender_ShortLinks(t *testing.T) {
 	setting.AppURL = markup.TestAppURL
 	tree := util.URLJoin(markup.TestRepoURL, "src", "master")
 
-	test := func(input, expected, expectedWiki string) {
-		buffer, err := markdown.RenderString(markup.NewTestRenderContext(markup.Links{Base: markup.TestRepoURL, BranchPath: "master"}), input)
+	test := func(input, expected string) {
+		buffer, err := markdown.RenderString(markup.NewTestRenderContext(tree), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(string(buffer)))
-		buffer, err = markdown.RenderString(markup.NewTestRenderContext(markup.Links{Base: markup.TestRepoURL}, localWikiMetas), input)
-		assert.NoError(t, err)
-		assert.Equal(t, strings.TrimSpace(expectedWiki), strings.TrimSpace(string(buffer)))
 	}
 
-	mediatree := util.URLJoin(markup.TestRepoURL, "media", "master")
 	url := util.URLJoin(tree, "Link")
 	otherURL := util.URLJoin(tree, "Other-Link")
 	encodedURL := util.URLJoin(tree, "Link%3F")
-	imgurl := util.URLJoin(mediatree, "Link.jpg")
-	otherImgurl := util.URLJoin(mediatree, "Link+Other.jpg")
-	encodedImgurl := util.URLJoin(mediatree, "Link+%23.jpg")
-	notencodedImgurl := util.URLJoin(mediatree, "some", "path", "Link+#.jpg")
-	urlWiki := util.URLJoin(markup.TestRepoURL, "wiki", "Link")
-	otherURLWiki := util.URLJoin(markup.TestRepoURL, "wiki", "Other-Link")
-	encodedURLWiki := util.URLJoin(markup.TestRepoURL, "wiki", "Link%3F")
-	imgurlWiki := util.URLJoin(markup.TestRepoURL, "wiki", "raw", "Link.jpg")
-	otherImgurlWiki := util.URLJoin(markup.TestRepoURL, "wiki", "raw", "Link+Other.jpg")
-	encodedImgurlWiki := util.URLJoin(markup.TestRepoURL, "wiki", "raw", "Link+%23.jpg")
-	notencodedImgurlWiki := util.URLJoin(markup.TestRepoURL, "wiki", "raw", "some", "path", "Link+#.jpg")
+	imgurl := util.URLJoin(tree, "Link.jpg")
+	otherImgurl := util.URLJoin(tree, "Link+Other.jpg")
+	encodedImgurl := util.URLJoin(tree, "Link+%23.jpg")
+	notencodedImgurl := util.URLJoin(tree, "some", "path", "Link+#.jpg")
 	renderableFileURL := util.URLJoin(tree, "markdown_file.md")
-	renderableFileURLWiki := util.URLJoin(markup.TestRepoURL, "wiki", "markdown_file.md")
 	unrenderableFileURL := util.URLJoin(tree, "file.zip")
-	unrenderableFileURLWiki := util.URLJoin(markup.TestRepoURL, "wiki", "file.zip")
 	favicon := "http://google.com/favicon.ico"
 
 	test(
 		"[[Link]]",
 		`<p><a href="`+url+`" rel="nofollow">Link</a></p>`,
-		`<p><a href="`+urlWiki+`" rel="nofollow">Link</a></p>`)
+	)
 	test(
 		"[[Link.-]]",
 		`<p><a href="http://localhost:3000/test-owner/test-repo/src/master/Link.-" rel="nofollow">Link.-</a></p>`,
-		`<p><a href="http://localhost:3000/test-owner/test-repo/wiki/Link.-" rel="nofollow">Link.-</a></p>`)
+	)
 	test(
 		"[[Link.jpg]]",
 		`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Link.jpg" alt="Link.jpg"/></a></p>`,
-		`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Link.jpg" alt="Link.jpg"/></a></p>`)
+	)
 	test(
 		"[["+favicon+"]]",
 		`<p><a href="`+favicon+`" rel="nofollow"><img src="`+favicon+`" title="favicon.ico" alt="`+favicon+`"/></a></p>`,
-		`<p><a href="`+favicon+`" rel="nofollow"><img src="`+favicon+`" title="favicon.ico" alt="`+favicon+`"/></a></p>`)
+	)
 	test(
 		"[[Name|Link]]",
 		`<p><a href="`+url+`" rel="nofollow">Name</a></p>`,
-		`<p><a href="`+urlWiki+`" rel="nofollow">Name</a></p>`)
+	)
 	test(
 		"[[Name|Link.jpg]]",
 		`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Name" alt="Name"/></a></p>`,
-		`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Name" alt="Name"/></a></p>`)
+	)
 	test(
 		"[[Name|Link.jpg|alt=AltName]]",
 		`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="AltName" alt="AltName"/></a></p>`,
-		`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="AltName" alt="AltName"/></a></p>`)
+	)
 	test(
 		"[[Name|Link.jpg|title=Title]]",
 		`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Title" alt="Title"/></a></p>`,
-		`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Title" alt="Title"/></a></p>`)
+	)
 	test(
 		"[[Name|Link.jpg|alt=AltName|title=Title]]",
 		`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Title" alt="AltName"/></a></p>`,
-		`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Title" alt="AltName"/></a></p>`)
+	)
 	test(
 		"[[Name|Link.jpg|alt=\"AltName\"|title='Title']]",
 		`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Title" alt="AltName"/></a></p>`,
-		`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Title" alt="AltName"/></a></p>`)
+	)
 	test(
 		"[[Name|Link Other.jpg|alt=\"AltName\"|title='Title']]",
 		`<p><a href="`+otherImgurl+`" rel="nofollow"><img src="`+otherImgurl+`" title="Title" alt="AltName"/></a></p>`,
-		`<p><a href="`+otherImgurlWiki+`" rel="nofollow"><img src="`+otherImgurlWiki+`" title="Title" alt="AltName"/></a></p>`)
+	)
 	test(
 		"[[Link]] [[Other Link]]",
 		`<p><a href="`+url+`" rel="nofollow">Link</a> <a href="`+otherURL+`" rel="nofollow">Other Link</a></p>`,
-		`<p><a href="`+urlWiki+`" rel="nofollow">Link</a> <a href="`+otherURLWiki+`" rel="nofollow">Other Link</a></p>`)
+	)
 	test(
 		"[[Link?]]",
 		`<p><a href="`+encodedURL+`" rel="nofollow">Link?</a></p>`,
-		`<p><a href="`+encodedURLWiki+`" rel="nofollow">Link?</a></p>`)
+	)
 	test(
 		"[[Link]] [[Other Link]] [[Link?]]",
 		`<p><a href="`+url+`" rel="nofollow">Link</a> <a href="`+otherURL+`" rel="nofollow">Other Link</a> <a href="`+encodedURL+`" rel="nofollow">Link?</a></p>`,
-		`<p><a href="`+urlWiki+`" rel="nofollow">Link</a> <a href="`+otherURLWiki+`" rel="nofollow">Other Link</a> <a href="`+encodedURLWiki+`" rel="nofollow">Link?</a></p>`)
+	)
 	test(
 		"[[markdown_file.md]]",
 		`<p><a href="`+renderableFileURL+`" rel="nofollow">markdown_file.md</a></p>`,
-		`<p><a href="`+renderableFileURLWiki+`" rel="nofollow">markdown_file.md</a></p>`)
+	)
 	test(
 		"[[file.zip]]",
 		`<p><a href="`+unrenderableFileURL+`" rel="nofollow">file.zip</a></p>`,
-		`<p><a href="`+unrenderableFileURLWiki+`" rel="nofollow">file.zip</a></p>`)
+	)
 	test(
 		"[[Link #.jpg]]",
 		`<p><a href="`+encodedImgurl+`" rel="nofollow"><img src="`+encodedImgurl+`" title="Link #.jpg" alt="Link #.jpg"/></a></p>`,
-		`<p><a href="`+encodedImgurlWiki+`" rel="nofollow"><img src="`+encodedImgurlWiki+`" title="Link #.jpg" alt="Link #.jpg"/></a></p>`)
+	)
 	test(
 		"[[Name|Link #.jpg|alt=\"AltName\"|title='Title']]",
 		`<p><a href="`+encodedImgurl+`" rel="nofollow"><img src="`+encodedImgurl+`" title="Title" alt="AltName"/></a></p>`,
-		`<p><a href="`+encodedImgurlWiki+`" rel="nofollow"><img src="`+encodedImgurlWiki+`" title="Title" alt="AltName"/></a></p>`)
+	)
 	test(
 		"[[some/path/Link #.jpg]]",
 		`<p><a href="`+notencodedImgurl+`" rel="nofollow"><img src="`+notencodedImgurl+`" title="Link #.jpg" alt="some/path/Link #.jpg"/></a></p>`,
-		`<p><a href="`+notencodedImgurlWiki+`" rel="nofollow"><img src="`+notencodedImgurlWiki+`" title="Link #.jpg" alt="some/path/Link #.jpg"/></a></p>`)
+	)
 	test(
 		"<p><a href=\"https://example.org\">[[foobar]]</a></p>",
 		`<p><a href="https://example.org" rel="nofollow">[[foobar]]</a></p>`,
-		`<p><a href="https://example.org" rel="nofollow">[[foobar]]</a></p>`)
-}
-
-func TestRender_RelativeMedias(t *testing.T) {
-	render := func(input string, isWiki bool, links markup.Links) string {
-		buffer, err := markdown.RenderString(markup.NewTestRenderContext(links, util.Iif(isWiki, localWikiMetas, localMetas)), input)
-		assert.NoError(t, err)
-		return strings.TrimSpace(string(buffer))
-	}
-
-	out := render(`<img src="LINK">`, false, markup.Links{Base: "/test-owner/test-repo"})
-	assert.Equal(t, `<a href="/test-owner/test-repo/LINK" target="_blank" rel="nofollow noopener"><img src="/test-owner/test-repo/LINK"/></a>`, out)
-
-	out = render(`<img src="LINK">`, true, markup.Links{Base: "/test-owner/test-repo"})
-	assert.Equal(t, `<a href="/test-owner/test-repo/wiki/raw/LINK" target="_blank" rel="nofollow noopener"><img src="/test-owner/test-repo/wiki/raw/LINK"/></a>`, out)
-
-	out = render(`<img src="LINK">`, false, markup.Links{Base: "/test-owner/test-repo", BranchPath: "test-branch"})
-	assert.Equal(t, `<a href="/test-owner/test-repo/media/test-branch/LINK" target="_blank" rel="nofollow noopener"><img src="/test-owner/test-repo/media/test-branch/LINK"/></a>`, out)
-
-	out = render(`<img src="LINK">`, true, markup.Links{Base: "/test-owner/test-repo", BranchPath: "test-branch"})
-	assert.Equal(t, `<a href="/test-owner/test-repo/wiki/raw/LINK" target="_blank" rel="nofollow noopener"><img src="/test-owner/test-repo/wiki/raw/LINK"/></a>`, out)
-
-	out = render(`<img src="/LINK">`, true, markup.Links{Base: "/test-owner/test-repo", BranchPath: "test-branch"})
-	assert.Equal(t, `<img src="/LINK"/>`, out)
-
-	out = render(`<video src="LINK">`, false, markup.Links{Base: "/test-owner/test-repo"})
-	assert.Equal(t, `<video src="/test-owner/test-repo/LINK"></video>`, out)
-
-	out = render(`<video src="LINK">`, true, markup.Links{Base: "/test-owner/test-repo"})
-	assert.Equal(t, `<video src="/test-owner/test-repo/wiki/raw/LINK"></video>`, out)
-
-	out = render(`<video src="/LINK">`, false, markup.Links{Base: "/test-owner/test-repo"})
-	assert.Equal(t, `<video src="/LINK"></video>`, out)
+	)
 }
 
 func Test_ParseClusterFuzz(t *testing.T) {
 	setting.AppURL = markup.TestAppURL
 
-	localMetas := map[string]string{
-		"user": "go-gitea",
-		"repo": "gitea",
-	}
+	localMetas := map[string]string{"user": "go-gitea", "repo": "gitea"}
 
 	data := "<A><maTH><tr><MN><bodY ÿ><temPlate></template><tH><tr></A><tH><d<bodY "
 
 	var res strings.Builder
-	err := markup.PostProcess(markup.NewTestRenderContext(markup.Links{Base: "https://example.com"}, localMetas), strings.NewReader(data), &res)
+	err := markup.PostProcess(markup.NewTestRenderContext(localMetas), strings.NewReader(data), &res)
 	assert.NoError(t, err)
 	assert.NotContains(t, res.String(), "<html")
 
 	data = "<!DOCTYPE html>\n<A><maTH><tr><MN><bodY ÿ><temPlate></template><tH><tr></A><tH><d<bodY "
 
 	res.Reset()
-	err = markup.PostProcess(markup.NewTestRenderContext(markup.Links{Base: "https://example.com"}, localMetas), strings.NewReader(data), &res)
+	err = markup.PostProcess(markup.NewTestRenderContext(localMetas), strings.NewReader(data), &res)
 
 	assert.NoError(t, err)
 	assert.NotContains(t, res.String(), "<html")
 }
 
 func TestPostProcess_RenderDocument(t *testing.T) {
-	setting.AppURL = markup.TestAppURL
 	setting.StaticURLPrefix = markup.TestAppURL // can't run standalone
-	defer testModule.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer testModule.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 
 	test := func(input, expected string) {
 		var res strings.Builder
-		err := markup.PostProcess(markup.NewTestRenderContext(
-			markup.Links{
-				AbsolutePrefix: true,
-				Base:           "https://example.com",
-			},
-			map[string]string{"user": "go-gitea", "repo": "gitea"},
-		), strings.NewReader(input), &res)
+		err := markup.PostProcess(markup.NewTestRenderContext(markup.TestAppURL, map[string]string{"user": "go-gitea", "repo": "gitea"}), strings.NewReader(input), &res)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(res.String()))
 	}
@@ -612,15 +521,7 @@ func BenchmarkEmojiPostprocess(b *testing.B) {
 
 func TestFuzz(t *testing.T) {
 	s := "t/l/issues/8#/../../a"
-	renderContext := markup.NewTestRenderContext(
-		markup.Links{
-			Base: "https://example.com/go-gitea/gitea",
-		},
-		map[string]string{
-			"user": "go-gitea",
-			"repo": "gitea",
-		},
-	)
+	renderContext := markup.NewTestRenderContext()
 	err := markup.PostProcess(renderContext, strings.NewReader(s), io.Discard)
 	assert.NoError(t, err)
 }

modules/markup/main_test.go

@@ -4,11 +4,15 @@
 package markup_test
 
 import (
+	"os"
 	"testing"
 
-	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/setting"
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m)
+	setting.IsInTesting = true
+	markup.RenderBehaviorForTesting.DisableAdditionalAttributes = true
+	os.Exit(m.Run())
 }

modules/markup/markdown/goldmark.go

@@ -37,8 +37,8 @@ func NewASTTransformer(renderInternal *internal.RenderInternal) *ASTTransformer
 }
 
 func (g *ASTTransformer) applyElementDir(n ast.Node) {
-	if markup.DefaultProcessorHelper.ElementDir != "" {
-		n.SetAttributeString("dir", []byte(markup.DefaultProcessorHelper.ElementDir))
+	if !markup.RenderBehaviorForTesting.DisableAdditionalAttributes {
+		n.SetAttributeString("dir", "auto")
 	}
 }
 

modules/markup/markdown/main_test.go

@@ -4,18 +4,15 @@
 package markdown
 
 import (
-	"context"
+	"os"
 	"testing"
 
-	"code.gitea.io/gitea/models/unittest"
 	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/setting"
 )
 
 func TestMain(m *testing.M) {
-	markup.Init(&markup.ProcessorHelper{
-		IsUsernameMentionable: func(ctx context.Context, username string) bool {
-			return username == "r-lyeh"
-		},
-	})
-	unittest.MainTest(m)
+	setting.IsInTesting = true
+	markup.RenderBehaviorForTesting.DisableAdditionalAttributes = true
+	os.Exit(m.Run())
 }

modules/markup/markdown/markdown_test.go

@@ -4,11 +4,11 @@
 package markdown_test
 
 import (
+	"context"
 	"html/template"
 	"strings"
 	"testing"
 
-	"code.gitea.io/gitea/modules/gitrepo"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
@@ -35,60 +35,23 @@ var localMetas = map[string]string{
 	"repo": testRepoName,
 }
 
-var localWikiMetas = map[string]string{
-	"user":              testRepoOwnerName,
-	"repo":              testRepoName,
-	"markupContentMode": "wiki",
-}
-
-type mockRepo struct {
-	OwnerName string
-	RepoName  string
-}
-
-func (m *mockRepo) GetOwnerName() string {
-	return m.OwnerName
-}
-
-func (m *mockRepo) GetName() string {
-	return m.RepoName
-}
-
-func newMockRepo(ownerName, repoName string) gitrepo.Repository {
-	return &mockRepo{
-		OwnerName: ownerName,
-		RepoName:  repoName,
-	}
-}
-
 func TestRender_StandardLinks(t *testing.T) {
-	setting.AppURL = AppURL
-
-	test := func(input, expected, expectedWiki string) {
-		buffer, err := markdown.RenderString(markup.NewTestRenderContext(markup.Links{Base: FullURL}), input)
+	test := func(input, expected string) {
+		buffer, err := markdown.RenderString(markup.NewTestRenderContext(), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(string(buffer)))
-
-		buffer, err = markdown.RenderString(markup.NewTestRenderContext(markup.Links{Base: FullURL}, localWikiMetas), input)
-		assert.NoError(t, err)
-		assert.Equal(t, strings.TrimSpace(expectedWiki), strings.TrimSpace(string(buffer)))
 	}
 
 	googleRendered := `<p><a href="https://google.com/" rel="nofollow">https://google.com/</a></p>`
-	test("<https://google.com/>", googleRendered, googleRendered)
-
-	lnk := util.URLJoin(FullURL, "WikiPage")
-	lnkWiki := util.URLJoin(FullURL, "wiki", "WikiPage")
-	test("[WikiPage](WikiPage)",
-		`<p><a href="`+lnk+`" rel="nofollow">WikiPage</a></p>`,
-		`<p><a href="`+lnkWiki+`" rel="nofollow">WikiPage</a></p>`)
+	test("<https://google.com/>", googleRendered)
+	test("[Link](Link)", `<p><a href="/Link" rel="nofollow">Link</a></p>`)
 }
 
 func TestRender_Images(t *testing.T) {
 	setting.AppURL = AppURL
 
 	test := func(input, expected string) {
-		buffer, err := markdown.RenderString(markup.NewTestRenderContext(markup.Links{Base: FullURL}), input)
+		buffer, err := markdown.RenderString(markup.NewTestRenderContext(FullURL), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(string(buffer)))
 	}
@@ -122,12 +85,12 @@ func TestRender_Images(t *testing.T) {
 		`<p><a href="`+href+`" rel="nofollow"><img src="`+result+`" alt="`+title+`"/></a></p>`)
 }
 
-func testAnswers(baseURLContent, baseURLImages string) []string {
+func testAnswers(baseURL string) []string {
 	return []string{
 		`<p>Wiki! Enjoy :)</p>
 <ul>
-<li><a href="` + baseURLContent + `/Links" rel="nofollow">Links, Language bindings, Engine bindings</a></li>
-<li><a href="` + baseURLContent + `/Tips" rel="nofollow">Tips</a></li>
+<li><a href="` + baseURL + `/Links" rel="nofollow">Links, Language bindings, Engine bindings</a></li>
+<li><a href="` + baseURL + `/Tips" rel="nofollow">Tips</a></li>
 </ul>
 <p>See commit <a href="/` + testRepoOwnerName + `/` + testRepoName + `/commit/65f1bf27bc" rel="nofollow"><code>65f1bf27bc</code></a></p>
 <p>Ideas and codes</p>
@@ -135,8 +98,8 @@ func testAnswers(baseURLContent, baseURLImages string) []string {
 <li>Bezier widget (by <a href="/r-lyeh" rel="nofollow">@r-lyeh</a>) <a href="http://localhost:3000/ocornut/imgui/issues/786" class="ref-issue" rel="nofollow">ocornut/imgui#786</a></li>
 <li>Bezier widget (by <a href="/r-lyeh" rel="nofollow">@r-lyeh</a>) <a href="` + FullURL + `issues/786" class="ref-issue" rel="nofollow">#786</a></li>
 <li>Node graph editors <a href="https://github.com/ocornut/imgui/issues/306" rel="nofollow">https://github.com/ocornut/imgui/issues/306</a></li>
-<li><a href="` + baseURLContent + `/memory_editor_example" rel="nofollow">Memory Editor</a></li>
-<li><a href="` + baseURLContent + `/plot_var_example" rel="nofollow">Plot var helper</a></li>
+<li><a href="` + baseURL + `/memory_editor_example" rel="nofollow">Memory Editor</a></li>
+<li><a href="` + baseURL + `/plot_var_example" rel="nofollow">Plot var helper</a></li>
 </ul>
 `,
 		`<h2 id="user-content-what-is-wine-staging">What is Wine Staging?</h2>
@@ -146,14 +109,14 @@ func testAnswers(baseURLContent, baseURLImages string) []string {
 <table>
 <thead>
 <tr>
-<th><a href="` + baseURLImages + `/images/icon-install.png" rel="nofollow"><img src="` + baseURLImages + `/images/icon-install.png" title="icon-install.png" alt="images/icon-install.png"/></a></th>
-<th><a href="` + baseURLContent + `/Installation" rel="nofollow">Installation</a></th>
+<th><a href="` + baseURL + `/images/icon-install.png" rel="nofollow"><img src="` + baseURL + `/images/icon-install.png" title="icon-install.png" alt="images/icon-install.png"/></a></th>
+<th><a href="` + baseURL + `/Installation" rel="nofollow">Installation</a></th>
 </tr>
 </thead>
 <tbody>
 <tr>
-<td><a href="` + baseURLImages + `/images/icon-usage.png" rel="nofollow"><img src="` + baseURLImages + `/images/icon-usage.png" title="icon-usage.png" alt="images/icon-usage.png"/></a></td>
-<td><a href="` + baseURLContent + `/Usage" rel="nofollow">Usage</a></td>
+<td><a href="` + baseURL + `/images/icon-usage.png" rel="nofollow"><img src="` + baseURL + `/images/icon-usage.png" title="icon-usage.png" alt="images/icon-usage.png"/></a></td>
+<td><a href="` + baseURL + `/Usage" rel="nofollow">Usage</a></td>
 </tr>
 </tbody>
 </table>
@@ -161,9 +124,9 @@ func testAnswers(baseURLContent, baseURLImages string) []string {
 		`<p><a href="http://www.excelsiorjet.com/" rel="nofollow">Excelsior JET</a> allows you to create native executables for Windows, Linux and Mac OS X.</p>
 <ol>
 <li><a href="https://github.com/libgdx/libgdx/wiki/Gradle-on-the-Commandline#packaging-for-the-desktop" rel="nofollow">Package your libGDX application</a><br/>
-<a href="` + baseURLImages + `/images/1.png" rel="nofollow"><img src="` + baseURLImages + `/images/1.png" title="1.png" alt="images/1.png"/></a></li>
+<a href="` + baseURL + `/images/1.png" rel="nofollow"><img src="` + baseURL + `/images/1.png" title="1.png" alt="images/1.png"/></a></li>
 <li>Perform a test run by hitting the Run! button.<br/>
-<a href="` + baseURLImages + `/images/2.png" rel="nofollow"><img src="` + baseURLImages + `/images/2.png" title="2.png" alt="images/2.png"/></a></li>
+<a href="` + baseURL + `/images/2.png" rel="nofollow"><img src="` + baseURL + `/images/2.png" title="2.png" alt="images/2.png"/></a></li>
 </ol>
 <h2 id="user-content-custom-id">More tests</h2>
 <p>(from <a href="https://www.markdownguide.org/extended-syntax/" rel="nofollow">https://www.markdownguide.org/extended-syntax/</a>)</p>
@@ -284,66 +247,20 @@ This PR has been generated by [Renovate Bot](https://github.com/renovatebot/reno
 <!-- test-comment -->`,
 }
 
-func TestTotal_RenderWiki(t *testing.T) {
-	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.ForceHardLineBreak, true)()
-	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
-	setting.AppURL = AppURL
-	answers := testAnswers(util.URLJoin(FullURL, "wiki"), util.URLJoin(FullURL, "wiki", "raw"))
-	for i := 0; i < len(sameCases); i++ {
-		line, err := markdown.RenderString(markup.NewTestRenderContext(
-			markup.Links{Base: FullURL},
-			newMockRepo(testRepoOwnerName, testRepoName),
-			localWikiMetas,
-		), sameCases[i])
-		assert.NoError(t, err)
-		assert.Equal(t, answers[i], string(line))
-	}
-
-	testCases := []string{
-		// Guard wiki sidebar: special syntax
-		`[[Guardfile-DSL / Configuring-Guard|Guardfile-DSL---Configuring-Guard]]`,
-		// rendered
-		`<p><a href="` + FullURL + `wiki/Guardfile-DSL---Configuring-Guard" rel="nofollow">Guardfile-DSL / Configuring-Guard</a></p>
-`,
-		// special syntax
-		`[[Name|Link]]`,
-		// rendered
-		`<p><a href="` + FullURL + `wiki/Link" rel="nofollow">Name</a></p>
-`,
-	}
-
-	for i := 0; i < len(testCases); i += 2 {
-		line, err := markdown.RenderString(markup.NewTestRenderContext(markup.Links{Base: FullURL}, localWikiMetas), testCases[i])
-		assert.NoError(t, err)
-		assert.EqualValues(t, testCases[i+1], string(line))
-	}
-}
-
 func TestTotal_RenderString(t *testing.T) {
 	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.ForceHardLineBreak, true)()
-	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
-	setting.AppURL = AppURL
-	answers := testAnswers(util.URLJoin(FullURL, "src", "master"), util.URLJoin(FullURL, "media", "master"))
-	for i := 0; i < len(sameCases); i++ {
-		line, err := markdown.RenderString(markup.NewTestRenderContext(
-			markup.Links{
-				Base:       FullURL,
-				BranchPath: "master",
+	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
+	markup.Init(&markup.RenderHelperFuncs{
+		IsUsernameMentionable: func(ctx context.Context, username string) bool {
+			return username == "r-lyeh"
 		},
-			newMockRepo(testRepoOwnerName, testRepoName),
-			localMetas,
-		), sameCases[i])
+	})
+	answers := testAnswers("")
+	for i := 0; i < len(sameCases); i++ {
+		line, err := markdown.RenderString(markup.NewTestRenderContext(localMetas), sameCases[i])
 		assert.NoError(t, err)
 		assert.Equal(t, answers[i], string(line))
 	}
-
-	testCases := []string{}
-
-	for i := 0; i < len(testCases); i += 2 {
-		line, err := markdown.RenderString(markup.NewTestRenderContext(markup.Links{Base: FullURL}), testCases[i])
-		assert.NoError(t, err)
-		assert.Equal(t, template.HTML(testCases[i+1]), line)
-	}
 }
 
 func TestRender_RenderParagraphs(t *testing.T) {
@@ -609,13 +526,9 @@ mail@domain.com
 `
 	input = strings.ReplaceAll(input, "${SPACE}", " ") // replace ${SPACE} with " ", to avoid some editor's auto-trimming
 	cases := []struct {
-		Links    markup.Links
-		IsWiki   bool
 		Expected string
 	}{
-		{ // 0
-			Links:  markup.Links{},
-			IsWiki: false,
+		{
 			Expected: `<p>space @mention-user<br/>
 /just/a/path.bin<br/>
 <a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
@@ -638,339 +551,14 @@ com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
 @mention-user test<br/>
 #123<br/>
 space</p>
-`,
-		},
-		{ // 1
-			Links:  markup.Links{},
-			IsWiki: true,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/wiki/raw/image.jpg" alt="local image"/></a><br/>
-<a href="/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="/wiki/raw/image.jpg" rel="nofollow"><img src="/wiki/raw/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 2
-			Links: markup.Links{
-				Base: "https://gitea.io/",
-			},
-			IsWiki: false,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="https://gitea.io/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="https://gitea.io/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="https://gitea.io/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://gitea.io/image.jpg" alt="local image"/></a><br/>
-<a href="https://gitea.io/path/file" target="_blank" rel="nofollow noopener"><img src="https://gitea.io/path/file" alt="local image"/></a><br/>
-<a href="https://gitea.io/path/file" target="_blank" rel="nofollow noopener"><img src="https://gitea.io/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="https://gitea.io/image.jpg" rel="nofollow"><img src="https://gitea.io/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 3
-			Links: markup.Links{
-				Base: "https://gitea.io/",
-			},
-			IsWiki: true,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="https://gitea.io/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="https://gitea.io/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="https://gitea.io/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://gitea.io/wiki/raw/image.jpg" alt="local image"/></a><br/>
-<a href="https://gitea.io/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="https://gitea.io/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="https://gitea.io/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="https://gitea.io/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="https://gitea.io/wiki/raw/image.jpg" rel="nofollow"><img src="https://gitea.io/wiki/raw/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 4
-			Links: markup.Links{
-				Base: "/relative/path",
-			},
-			IsWiki: false,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="/relative/path/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/image.jpg" target="_blank" rel="nofollow noopener"><img src="/relative/path/image.jpg" alt="local image"/></a><br/>
-<a href="/relative/path/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/path/file" alt="local image"/></a><br/>
-<a href="/relative/path/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="/relative/path/image.jpg" rel="nofollow"><img src="/relative/path/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 5
-			Links: markup.Links{
-				Base: "/relative/path",
-			},
-			IsWiki: true,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/image.jpg" alt="local image"/></a><br/>
-<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="/relative/path/wiki/raw/image.jpg" rel="nofollow"><img src="/relative/path/wiki/raw/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 6
-			Links: markup.Links{
-				Base:       "/user/repo",
-				BranchPath: "branch/main",
-			},
-			IsWiki: false,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="/user/repo/src/branch/main/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/user/repo/src/branch/main/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/user/repo/media/branch/main/image.jpg" target="_blank" rel="nofollow noopener"><img src="/user/repo/media/branch/main/image.jpg" alt="local image"/></a><br/>
-<a href="/user/repo/media/branch/main/path/file" target="_blank" rel="nofollow noopener"><img src="/user/repo/media/branch/main/path/file" alt="local image"/></a><br/>
-<a href="/user/repo/media/branch/main/path/file" target="_blank" rel="nofollow noopener"><img src="/user/repo/media/branch/main/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="/user/repo/media/branch/main/image.jpg" rel="nofollow"><img src="/user/repo/media/branch/main/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 7
-			Links: markup.Links{
-				Base:       "/relative/path",
-				BranchPath: "branch/main",
-			},
-			IsWiki: true,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/image.jpg" alt="local image"/></a><br/>
-<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="/relative/path/wiki/raw/image.jpg" rel="nofollow"><img src="/relative/path/wiki/raw/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 8
-			Links: markup.Links{
-				Base:     "/user/repo",
-				TreePath: "sub/folder",
-			},
-			IsWiki: false,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="/user/repo/src/sub/folder/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/user/repo/src/sub/folder/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/user/repo/image.jpg" target="_blank" rel="nofollow noopener"><img src="/user/repo/image.jpg" alt="local image"/></a><br/>
-<a href="/user/repo/path/file" target="_blank" rel="nofollow noopener"><img src="/user/repo/path/file" alt="local image"/></a><br/>
-<a href="/user/repo/path/file" target="_blank" rel="nofollow noopener"><img src="/user/repo/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="/user/repo/image.jpg" rel="nofollow"><img src="/user/repo/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 9
-			Links: markup.Links{
-				Base:     "/relative/path",
-				TreePath: "sub/folder",
-			},
-			IsWiki: true,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/image.jpg" alt="local image"/></a><br/>
-<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="/relative/path/wiki/raw/image.jpg" rel="nofollow"><img src="/relative/path/wiki/raw/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 10
-			Links: markup.Links{
-				Base:       "/user/repo",
-				BranchPath: "branch/main",
-				TreePath:   "sub/folder",
-			},
-			IsWiki: false,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="/user/repo/src/branch/main/sub/folder/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/user/repo/src/branch/main/sub/folder/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/user/repo/media/branch/main/sub/folder/image.jpg" target="_blank" rel="nofollow noopener"><img src="/user/repo/media/branch/main/sub/folder/image.jpg" alt="local image"/></a><br/>
-<a href="/user/repo/media/branch/main/sub/folder/path/file" target="_blank" rel="nofollow noopener"><img src="/user/repo/media/branch/main/sub/folder/path/file" alt="local image"/></a><br/>
-<a href="/user/repo/media/branch/main/sub/folder/path/file" target="_blank" rel="nofollow noopener"><img src="/user/repo/media/branch/main/sub/folder/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="/user/repo/media/branch/main/sub/folder/image.jpg" rel="nofollow"><img src="/user/repo/media/branch/main/sub/folder/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
-`,
-		},
-		{ // 11
-			Links: markup.Links{
-				Base:       "/relative/path",
-				BranchPath: "branch/main",
-				TreePath:   "sub/folder",
-			},
-			IsWiki: true,
-			Expected: `<p>space @mention-user<br/>
-/just/a/path.bin<br/>
-<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
-<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
-<a href="https://example.com" rel="nofollow">remote link</a><br/>
-<a href="/relative/path/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/image.jpg" alt="local image"/></a><br/>
-<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a><br/>
-<a href="/relative/path/wiki/raw/image.jpg" rel="nofollow"><img src="/relative/path/wiki/raw/image.jpg" title="local image" alt="local image"/></a><br/>
-<a href="https://example.com/image.jpg" rel="nofollow"><img src="https://example.com/image.jpg" title="remote link" alt="remote link"/></a><br/>
-<a href="https://example.com/user/repo/compare/88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb#hash" rel="nofollow"><code>88fc37a3c0...12fc37a3c0 (hash)</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb...12fc37a3c0a4dda553bdcfc80c178a58247f42fb pare<br/>
-<a href="https://example.com/user/repo/commit/88fc37a3c0a4dda553bdcfc80c178a58247f42fb" rel="nofollow"><code>88fc37a3c0</code></a><br/>
-com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit<br/>
-<span class="emoji" aria-label="thumbs up">👍</span><br/>
-<a href="mailto:mail@domain.com" rel="nofollow">mail@domain.com</a><br/>
-@mention-user test<br/>
-#123<br/>
-space</p>
 `,
 		},
 	}
 
 	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.ForceHardLineBreak, true)()
-	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	for i, c := range cases {
-		result, err := markdown.RenderString(markup.NewTestRenderContext(c.Links, util.Iif(c.IsWiki, map[string]string{"markupContentMode": "wiki"}, map[string]string{})), input)
+		result, err := markdown.RenderString(markup.NewTestRenderContext(localMetas), input)
 		assert.NoError(t, err, "Unexpected error in testcase: %v", i)
 		assert.Equal(t, c.Expected, string(result), "Unexpected result in testcase %v", i)
 	}

modules/markup/markdown/transform_image.go

@@ -4,10 +4,7 @@
 package markdown
 
 import (
-	"strings"
-
 	"code.gitea.io/gitea/modules/markup"
-	giteautil "code.gitea.io/gitea/modules/util"
 
 	"github.com/yuin/goldmark/ast"
 )
@@ -20,10 +17,7 @@ func (g *ASTTransformer) transformImage(ctx *markup.RenderContext, v *ast.Image)
 
 	// Check if the destination is a real link
 	if len(v.Destination) > 0 && !markup.IsFullURLBytes(v.Destination) {
-		v.Destination = []byte(giteautil.URLJoin(
-			ctx.RenderOptions.Links.ResolveMediaLink(ctx.IsMarkupContentWiki()),
-			strings.TrimLeft(string(v.Destination), "/"),
-		))
+		v.Destination = []byte(ctx.RenderHelper.ResolveLink(string(v.Destination), markup.LinkTypeMedia))
 	}
 
 	parent := v.Parent()

modules/markup/markdown/transform_link.go

@@ -9,8 +9,19 @@ import (
 	"github.com/yuin/goldmark/ast"
 )
 
+func resolveLink(ctx *markup.RenderContext, link, userContentAnchorPrefix string) (result string, resolved bool) {
+	isAnchorFragment := link != "" && link[0] == '#'
+	if !isAnchorFragment && !markup.IsFullURLString(link) {
+		link, resolved = ctx.RenderHelper.ResolveLink(link, markup.LinkTypeDefault), true
+	}
+	if isAnchorFragment && userContentAnchorPrefix != "" {
+		link, resolved = userContentAnchorPrefix+link[1:], true
+	}
+	return link, resolved
+}
+
 func (g *ASTTransformer) transformLink(ctx *markup.RenderContext, v *ast.Link) {
-	if link, resolved := markup.ResolveLink(ctx, string(v.Destination), "#user-content-"); resolved {
+	if link, resolved := resolveLink(ctx, string(v.Destination), "#user-content-"); resolved {
 		v.Destination = []byte(link)
 	}
 }

modules/markup/orgmode/orgmode.go

@@ -13,7 +13,6 @@ import (
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/setting"
-	"code.gitea.io/gitea/modules/util"
 
 	"github.com/alecthomas/chroma/v2"
 	"github.com/alecthomas/chroma/v2/lexers"
@@ -142,19 +141,11 @@ func (r *Writer) resolveLink(kind, link string) string {
 			// so we need to try to guess the link kind again here
 			kind = org.RegularLink{URL: link}.Kind()
 		}
-
-		base := r.Ctx.RenderOptions.Links.Base
-		if r.Ctx.IsMarkupContentWiki() {
-			base = r.Ctx.RenderOptions.Links.WikiLink()
-		} else if r.Ctx.RenderOptions.Links.HasBranchInfo() {
-			base = r.Ctx.RenderOptions.Links.SrcLink()
-		}
-
 		if kind == "image" || kind == "video" {
-			base = r.Ctx.RenderOptions.Links.ResolveMediaLink(r.Ctx.IsMarkupContentWiki())
+			link = r.Ctx.RenderHelper.ResolveLink(link, markup.LinkTypeMedia)
+		} else {
+			link = r.Ctx.RenderHelper.ResolveLink(link, markup.LinkTypeDefault)
 		}
-
-		link = util.URLJoin(base, link)
 	}
 	return link
 }

modules/markup/orgmode/orgmode_test.go

@@ -10,7 +10,6 @@ import (
 
 	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/setting"
-	"code.gitea.io/gitea/modules/util"
 
 	"github.com/stretchr/testify/assert"
 )
@@ -22,34 +21,21 @@ func TestMain(m *testing.M) {
 }
 
 func TestRender_StandardLinks(t *testing.T) {
-	test := func(input, expected string, isWiki bool) {
-		buffer, err := RenderString(markup.NewTestRenderContext(
-			markup.Links{
-				Base:       "/relative-path",
-				BranchPath: "branch/main",
-			},
-			map[string]string{"markupContentMode": util.Iif(isWiki, "wiki", "")},
-		), input)
+	test := func(input, expected string) {
+		buffer, err := RenderString(markup.NewTestRenderContext("/relative-path/media/branch/main/"), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
 	}
 
 	test("[[https://google.com/]]",
-		`<p><a href="https://google.com/">https://google.com/</a></p>`, false)
-	test("[[WikiPage][The WikiPage Desc]]",
-		`<p><a href="/relative-path/wiki/WikiPage">The WikiPage Desc</a></p>`, true)
+		`<p><a href="https://google.com/">https://google.com/</a></p>`)
 	test("[[ImageLink.svg][The Image Desc]]",
-		`<p><a href="/relative-path/media/branch/main/ImageLink.svg">The Image Desc</a></p>`, false)
+		`<p><a href="/relative-path/media/branch/main/ImageLink.svg">The Image Desc</a></p>`)
 }
 
 func TestRender_InternalLinks(t *testing.T) {
 	test := func(input, expected string) {
-		buffer, err := RenderString(markup.NewTestRenderContext(
-			markup.Links{
-				Base:       "/relative-path",
-				BranchPath: "branch/main",
-			},
-		), input)
+		buffer, err := RenderString(markup.NewTestRenderContext("/relative-path/src/branch/main"), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
 	}
@@ -66,7 +52,7 @@ func TestRender_InternalLinks(t *testing.T) {
 
 func TestRender_Media(t *testing.T) {
 	test := func(input, expected string) {
-		buffer, err := RenderString(markup.NewTestRenderContext(markup.Links{Base: "./relative-path"}), input)
+		buffer, err := RenderString(markup.NewTestRenderContext("./relative-path"), input)
 		assert.NoError(t, err)
 		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
 	}

modules/markup/render.go

@@ -11,8 +11,6 @@ import (
 	"strings"
 	"time"
 
-	"code.gitea.io/gitea/modules/git"
-	"code.gitea.io/gitea/modules/gitrepo"
 	"code.gitea.io/gitea/modules/markup/internal"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/util"
@@ -38,12 +36,14 @@ var RenderBehaviorForTesting struct {
 	// * However, many places render the content without setting "mode" in Metas, all these places used comment line break setting incorrectly
 	ForceHardLineBreak bool
 
-	// Gitea will emit some internal attributes for various purposes, these attributes don't affect rendering.
+	// Gitea will emit some additional attributes for various purposes, these attributes don't affect rendering.
 	// But there are too many hard-coded test cases, to avoid changing all of them again and again, we can disable emitting these internal attributes.
-	DisableInternalAttributes bool
+	DisableAdditionalAttributes bool
 }
 
 type RenderOptions struct {
+	UseAbsoluteLink bool
+
 	// relative path from tree root of the branch
 	RelativePath string
 
@@ -51,12 +51,9 @@ type RenderOptions struct {
 	// for file mode, it could be left as empty, and will be detected by file extension in RelativePath
 	MarkupType string
 
-	// special link references for rendering, especially when there is a branch/tree path
-	Links Links
-
 	// user&repo, format&style&regexp (for external issue pattern), teams&org (for mention)
 	// BranchNameSubURL (for iframe&asciicast)
-	// markupAllowShortIssuePattern, markupContentMode (wiki)
+	// markupAllowShortIssuePattern
 	// markdownLineBreakStyle (comment, document)
 	Metas map[string]string
 
@@ -64,13 +61,6 @@ type RenderOptions struct {
 	InStandalonePage bool
 }
 
-type RenderHelper struct {
-	gitRepo       *git.Repository
-	repoFacade    gitrepo.Repository
-	shaExistCache map[string]bool
-	cancelFn      func()
-}
-
 // RenderContext represents a render context
 type RenderContext struct {
 	ctx context.Context
@@ -101,7 +91,7 @@ func (ctx *RenderContext) Value(key any) any {
 var _ context.Context = (*RenderContext)(nil)
 
 func NewRenderContext(ctx context.Context) *RenderContext {
-	return &RenderContext{ctx: ctx}
+	return &RenderContext{ctx: ctx, RenderHelper: &SimpleRenderHelper{}}
 }
 
 func (ctx *RenderContext) WithMarkupType(typ string) *RenderContext {
@@ -114,11 +104,6 @@ func (ctx *RenderContext) WithRelativePath(path string) *RenderContext {
 	return ctx
 }
 
-func (ctx *RenderContext) WithLinks(links Links) *RenderContext {
-	ctx.RenderOptions.Links = links
-	return ctx
-}
-
 func (ctx *RenderContext) WithMetas(metas map[string]string) *RenderContext {
 	ctx.RenderOptions.Metas = metas
 	return ctx
@@ -129,48 +114,16 @@ func (ctx *RenderContext) WithInStandalonePage(v bool) *RenderContext {
 	return ctx
 }
 
-func (ctx *RenderContext) WithGitRepo(r *git.Repository) *RenderContext {
-	ctx.RenderHelper.gitRepo = r
+func (ctx *RenderContext) WithUseAbsoluteLink(v bool) *RenderContext {
+	ctx.RenderOptions.UseAbsoluteLink = v
 	return ctx
 }
 
-func (ctx *RenderContext) WithRepoFacade(r gitrepo.Repository) *RenderContext {
-	ctx.RenderHelper.repoFacade = r
+func (ctx *RenderContext) WithHelper(helper RenderHelper) *RenderContext {
+	ctx.RenderHelper = helper
 	return ctx
 }
 
-// Cancel runs any cleanup functions that have been registered for this Ctx
-func (ctx *RenderContext) Cancel() {
-	if ctx == nil {
-		return
-	}
-	ctx.RenderHelper.shaExistCache = map[string]bool{}
-	if ctx.RenderHelper.cancelFn == nil {
-		return
-	}
-	ctx.RenderHelper.cancelFn()
-}
-
-// AddCancel adds the provided fn as a Cleanup for this Ctx
-func (ctx *RenderContext) AddCancel(fn func()) {
-	if ctx == nil {
-		return
-	}
-	oldCancelFn := ctx.RenderHelper.cancelFn
-	if oldCancelFn == nil {
-		ctx.RenderHelper.cancelFn = fn
-		return
-	}
-	ctx.RenderHelper.cancelFn = func() {
-		defer oldCancelFn()
-		fn()
-	}
-}
-
-func (ctx *RenderContext) IsMarkupContentWiki() bool {
-	return ctx.RenderOptions.Metas != nil && ctx.RenderOptions.Metas["markupContentMode"] == "wiki"
-}
-
 // Render renders markup file to HTML with all specific handling stuff.
 func Render(ctx *RenderContext, input io.Reader, output io.Writer) error {
 	if ctx.RenderOptions.MarkupType == "" && ctx.RenderOptions.RelativePath != "" {
@@ -237,6 +190,10 @@ func pipes() (io.ReadCloser, io.WriteCloser, func()) {
 }
 
 func render(ctx *RenderContext, renderer Renderer, input io.Reader, output io.Writer) error {
+	if ctx.RenderHelper != nil {
+		defer ctx.RenderHelper.CleanUp()
+	}
+
 	finalProcessor := ctx.RenderInternal.Init(output)
 	defer finalProcessor.Close()
 
@@ -278,11 +235,8 @@ func render(ctx *RenderContext, renderer Renderer, input io.Reader, output io.Wr
 }
 
 // Init initializes the render global variables
-func Init(ph *ProcessorHelper) {
-	if ph != nil {
-		DefaultProcessorHelper = *ph
-	}
-
+func Init(renderHelpFuncs *RenderHelperFuncs) {
+	DefaultRenderHelperFuncs = renderHelpFuncs
 	if len(setting.Markdown.CustomURLSchemes) > 0 {
 		CustomLinkURLSchemes(setting.Markdown.CustomURLSchemes)
 	}
@@ -300,23 +254,38 @@ func ComposeSimpleDocumentMetas() map[string]string {
 	return map[string]string{"markdownLineBreakStyle": "document"}
 }
 
+type TestRenderHelper struct {
+	ctx      *RenderContext
+	BaseLink string
+}
+
+func (r *TestRenderHelper) CleanUp() {}
+
+func (r *TestRenderHelper) IsCommitIDExisting(commitID string) bool {
+	return strings.HasPrefix(commitID, "65f1bf2") //|| strings.HasPrefix(commitID, "88fc37a")
+}
+
+func (r *TestRenderHelper) ResolveLink(link string, likeType LinkType) string {
+	return r.ctx.ResolveLinkRelative(r.BaseLink, "", link)
+}
+
+var _ RenderHelper = (*TestRenderHelper)(nil)
+
 // NewTestRenderContext is a helper function to create a RenderContext for testing purpose
-// It accepts string (RelativePath), Links, map[string]string (Metas), gitrepo.Repository
-func NewTestRenderContext(a ...any) *RenderContext {
+// It accepts string (BaseLink), map[string]string (Metas)
+func NewTestRenderContext(baseLinkOrMetas ...any) *RenderContext {
 	if !setting.IsInTesting {
 		panic("NewTestRenderContext should only be used in testing")
 	}
-	ctx := NewRenderContext(context.Background())
-	for _, v := range a {
+	helper := &TestRenderHelper{}
+	ctx := NewRenderContext(context.Background()).WithHelper(helper)
+	helper.ctx = ctx
+	for _, v := range baseLinkOrMetas {
 		switch v := v.(type) {
 		case string:
-			ctx = ctx.WithRelativePath(v)
-		case Links:
-			ctx = ctx.WithLinks(v)
+			helper.BaseLink = v
 		case map[string]string:
 			ctx = ctx.WithMetas(v)
-		case gitrepo.Repository:
-			ctx = ctx.WithRepoFacade(v)
 		default:
 			panic(fmt.Sprintf("unknown type %T", v))
 		}

modules/markup/render_helper.go

@@ -6,16 +6,52 @@ package markup
 import (
 	"context"
 	"html/template"
+
+	"code.gitea.io/gitea/modules/setting"
 )
 
-// ProcessorHelper is a helper for the rendering processors (it could be renamed to RenderHelper in the future).
-// The main purpose of this helper is to decouple some functions which are not directly available in this package.
-type ProcessorHelper struct {
+type LinkType string
+
+const (
+	LinkTypeApp     LinkType = "app"     // the link is relative to the AppSubURL
+	LinkTypeDefault LinkType = "default" // the link is relative to the default base (eg: repo link, or current ref tree path)
+	LinkTypeMedia   LinkType = "media"   // the link should be used to access media files (images, videos)
+	LinkTypeRaw     LinkType = "raw"     // not really useful, mainly for environment GITEA_PREFIX_RAW for external renders
+)
+
+type RenderHelper interface {
+	CleanUp()
+
+	// TODO: such dependency is not ideal. We should decouple the processors step by step.
+	// It should make the render choose different processors for different purposes,
+	// but not make processors to guess "is it rendering a comment or a wiki?" or "does it need to check commit ID?"
+
+	IsCommitIDExisting(commitID string) bool
+	ResolveLink(link string, likeType LinkType) string
+}
+
+// RenderHelperFuncs is used to decouple cycle-import
+// At the moment there are different packages:
+// modules/markup: basic markup rendering
+// models/renderhelper: need to access models and git repo, and models/issues needs it
+// services/markup: some real helper functions could only be provided here because it needs to access various services & templates
+type RenderHelperFuncs struct {
 	IsUsernameMentionable     func(ctx context.Context, username string) bool
-
-	ElementDir string // the direction of the elements, eg: "ltr", "rtl", "auto", default to no direction attribute
-
 	RenderRepoFileCodePreview func(ctx context.Context, options RenderCodePreviewOptions) (template.HTML, error)
 }
 
-var DefaultProcessorHelper ProcessorHelper
+var DefaultRenderHelperFuncs *RenderHelperFuncs
+
+type SimpleRenderHelper struct{}
+
+func (r *SimpleRenderHelper) CleanUp() {}
+
+func (r *SimpleRenderHelper) IsCommitIDExisting(commitID string) bool {
+	return false
+}
+
+func (r *SimpleRenderHelper) ResolveLink(link string, likeType LinkType) string {
+	return resolveLinkRelative(context.Background(), setting.AppSubURL+"/", "", link, false)
+}
+
+var _ RenderHelper = (*SimpleRenderHelper)(nil)

modules/markup/render_link.go

@@ -0,0 +1,42 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package markup
+
+import (
+	"context"
+	"strings"
+
+	"code.gitea.io/gitea/modules/httplib"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+)
+
+func resolveLinkRelative(ctx context.Context, base, cur, link string, absolute bool) (finalLink string) {
+	if IsFullURLString(link) {
+		return link
+	}
+	if strings.HasPrefix(link, "/") {
+		if strings.HasPrefix(link, base) && strings.Count(base, "/") >= 4 {
+			// a trick to tolerate that some users were using absolut paths (the old gitea's behavior)
+			finalLink = link
+		} else {
+			finalLink = util.URLJoin(base, "./", link)
+		}
+	} else {
+		finalLink = util.URLJoin(base, "./", cur, link)
+	}
+	finalLink = strings.TrimSuffix(finalLink, "/")
+	if absolute {
+		finalLink = httplib.MakeAbsoluteURL(ctx, finalLink)
+	}
+	return finalLink
+}
+
+func (ctx *RenderContext) ResolveLinkRelative(base, cur, link string) (finalLink string) {
+	return resolveLinkRelative(ctx, base, cur, link, ctx.RenderOptions.UseAbsoluteLink)
+}
+
+func (ctx *RenderContext) ResolveLinkApp(link string) string {
+	return ctx.ResolveLinkRelative(setting.AppSubURL+"/", "", link)
+}

modules/markup/render_link_test.go

@@ -0,0 +1,27 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package markup
+
+import (
+	"context"
+	"testing"
+
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestResolveLinkRelative(t *testing.T) {
+	ctx := context.Background()
+	setting.AppURL = "http://localhost:3000"
+	assert.Equal(t, "/a", resolveLinkRelative(ctx, "/a", "", "", false))
+	assert.Equal(t, "/a/b", resolveLinkRelative(ctx, "/a", "b", "", false))
+	assert.Equal(t, "/a/b/c", resolveLinkRelative(ctx, "/a", "b", "c", false))
+	assert.Equal(t, "/a/c", resolveLinkRelative(ctx, "/a", "b", "/c", false))
+	assert.Equal(t, "http://localhost:3000/a", resolveLinkRelative(ctx, "/a", "", "", true))
+
+	// some users might have used absolute paths a lot, so if the prefix overlaps and has enough slashes, we should tolerate it
+	assert.Equal(t, "/owner/repo/foo/owner/repo/foo/bar/xxx", resolveLinkRelative(ctx, "/owner/repo/foo", "", "/owner/repo/foo/bar/xxx", false))
+	assert.Equal(t, "/owner/repo/foo/bar/xxx", resolveLinkRelative(ctx, "/owner/repo/foo/bar", "", "/owner/repo/foo/bar/xxx", false))
+}

modules/markup/render_links.go

@@ -1,56 +0,0 @@
-// Copyright 2024 The Gitea Authors. All rights reserved.
-// SPDX-License-Identifier: MIT
-
-package markup
-
-import (
-	"code.gitea.io/gitea/modules/setting"
-	"code.gitea.io/gitea/modules/util"
-)
-
-type Links struct {
-	AbsolutePrefix bool   // add absolute URL prefix to auto-resolved links like "#issue", but not for pre-provided links and medias
-	Base           string // base prefix for pre-provided links and medias (images, videos), usually it is the path to the repo
-	BranchPath     string // actually it is the ref path, eg: "branch/features/feat-12", "tag/v1.0"
-	TreePath       string // the dir of the file, eg: "doc" if the file "doc/CHANGE.md" is being rendered
-}
-
-func (l *Links) Prefix() string {
-	if l.AbsolutePrefix {
-		return setting.AppURL
-	}
-	return setting.AppSubURL
-}
-
-func (l *Links) HasBranchInfo() bool {
-	return l.BranchPath != ""
-}
-
-func (l *Links) SrcLink() string {
-	return util.URLJoin(l.Base, "src", l.BranchPath, l.TreePath)
-}
-
-func (l *Links) MediaLink() string {
-	return util.URLJoin(l.Base, "media", l.BranchPath, l.TreePath)
-}
-
-func (l *Links) RawLink() string {
-	return util.URLJoin(l.Base, "raw", l.BranchPath, l.TreePath)
-}
-
-func (l *Links) WikiLink() string {
-	return util.URLJoin(l.Base, "wiki")
-}
-
-func (l *Links) WikiRawLink() string {
-	return util.URLJoin(l.Base, "wiki/raw")
-}
-
-func (l *Links) ResolveMediaLink(isWiki bool) string {
-	if isWiki {
-		return l.WikiRawLink()
-	} else if l.HasBranchInfo() {
-		return l.MediaLink()
-	}
-	return l.Base
-}

modules/markup/renderer.go

@@ -6,7 +6,7 @@ package markup
 import (
 	"bytes"
 	"io"
-	"path/filepath"
+	"path"
 	"strings"
 
 	"code.gitea.io/gitea/modules/setting"
@@ -55,7 +55,7 @@ func RegisterRenderer(renderer Renderer) {
 
 // GetRendererByFileName get renderer by filename
 func GetRendererByFileName(filename string) Renderer {
-	extension := strings.ToLower(filepath.Ext(filename))
+	extension := strings.ToLower(path.Ext(filename))
 	return extRenderers[extension]
 }
 

modules/markup/sanitizer_default.go

@@ -26,6 +26,9 @@ func (st *Sanitizer) createDefaultPolicy() *bluemonday.Policy {
 	policy.AllowAttrs("type").Matching(regexp.MustCompile(`^checkbox$`)).OnElements("input")
 	policy.AllowAttrs("checked", "disabled", "data-source-position").OnElements("input")
 
+	// Chroma always uses 1-2 letters for style names, we could tolerate it at the moment
+	policy.AllowAttrs("class").Matching(regexp.MustCompile(`^\w{0,2}$`)).OnElements("span")
+
 	// Custom URL-Schemes
 	if len(setting.Markdown.CustomURLSchemes) > 0 {
 		policy.AllowURLSchemes(setting.Markdown.CustomURLSchemes...)

modules/markup/sanitizer_default_test.go

@@ -19,6 +19,7 @@ func TestSanitizer(t *testing.T) {
 		// Code highlighting class
 		`<code class="random string"></code>`, `<code></code>`,
 		`<code class="language-random ui tab active menu attached animating sidebar following bar center"></code>`, `<code></code>`,
+		`<span class="k"></span><span class="nb"></span>`, `<span class="k"></span><span class="nb"></span>`,
 
 		// Input checkbox
 		`<input type="hidden">`, ``,

modules/templates/util_render_test.go

@@ -59,7 +59,7 @@ func TestMain(m *testing.M) {
 	if err := git.InitSimple(context.Background()); err != nil {
 		log.Fatal("git init failed, err: %v", err)
 	}
-	markup.Init(&markup.ProcessorHelper{
+	markup.Init(&markup.RenderHelperFuncs{
 		IsUsernameMentionable: func(ctx context.Context, username string) bool {
 			return username == "mention-user"
 		},
@@ -74,7 +74,7 @@ func newTestRenderUtils() *RenderUtils {
 }
 
 func TestRenderCommitBody(t *testing.T) {
-	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	type args struct {
 		msg string
 	}
@@ -145,7 +145,7 @@ func TestRenderCommitMessageLinkSubject(t *testing.T) {
 }
 
 func TestRenderIssueTitle(t *testing.T) {
-	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	expected := `  space @mention-user<SPACE><SPACE>
 /just/a/path.bin
 https://example.com/file.bin
@@ -172,7 +172,7 @@ mail@domain.com
 }
 
 func TestRenderMarkdownToHtml(t *testing.T) {
-	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	expected := `<p>space <a href="/mention-user" rel="nofollow">@mention-user</a><br/>
 /just/a/path.bin
 <a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a>
@@ -211,6 +211,7 @@ func TestRenderLabels(t *testing.T) {
 }
 
 func TestUserMention(t *testing.T) {
+	markup.RenderBehaviorForTesting.DisableAdditionalAttributes = true
 	rendered := newTestRenderUtils().MarkdownToHtml("@no-such-user @mention-user @mention-user")
-	assert.EqualValues(t, `<p>@no-such-user <a href="/mention-user" data-markdown-generated-content="" rel="nofollow">@mention-user</a> <a href="/mention-user" data-markdown-generated-content="" rel="nofollow">@mention-user</a></p>`, strings.TrimSpace(string(rendered)))
+	assert.EqualValues(t, `<p>@no-such-user <a href="/mention-user" rel="nofollow">@mention-user</a> <a href="/mention-user" rel="nofollow">@mention-user</a></p>`, strings.TrimSpace(string(rendered)))
 }

routers/api/v1/misc/markup_test.go

@@ -25,7 +25,7 @@ const AppURL = "http://localhost:3000/"
 
 func testRenderMarkup(t *testing.T, mode string, wiki bool, filePath, text, expectedBody string, expectedCode int) {
 	setting.AppURL = AppURL
-	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	context := "/gogits/gogs"
 	if !wiki {
 		context += path.Join("/src/branch/main", path.Dir(filePath))
@@ -46,7 +46,7 @@ func testRenderMarkup(t *testing.T, mode string, wiki bool, filePath, text, expe
 }
 
 func testRenderMarkdown(t *testing.T, mode string, wiki bool, text, responseBody string, responseCode int) {
-	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableInternalAttributes, true)()
+	defer test.MockVariableValue(&markup.RenderBehaviorForTesting.DisableAdditionalAttributes, true)()
 	setting.AppURL = AppURL
 	context := "/gogits/gogs"
 	if !wiki {
@@ -67,7 +67,7 @@ func testRenderMarkdown(t *testing.T, mode string, wiki bool, text, responseBody
 }
 
 func TestAPI_RenderGFM(t *testing.T) {
-	markup.Init(&markup.ProcessorHelper{
+	markup.Init(&markup.RenderHelperFuncs{
 		IsUsernameMentionable: func(ctx go_context.Context, username string) bool {
 			return username == "r-lyeh"
 		},
@@ -182,6 +182,7 @@ var simpleCases = []string{
 
 func TestAPI_RenderSimple(t *testing.T) {
 	setting.AppURL = AppURL
+	markup.RenderBehaviorForTesting.DisableAdditionalAttributes = true
 	options := api.MarkdownOption{
 		Mode:    "markdown",
 		Text:    "",
@@ -199,6 +200,7 @@ func TestAPI_RenderSimple(t *testing.T) {
 
 func TestAPI_RenderRaw(t *testing.T) {
 	setting.AppURL = AppURL
+	markup.RenderBehaviorForTesting.DisableAdditionalAttributes = true
 	ctx, resp := contexttest.MockAPIContext(t, "POST /api/v1/markdown")
 	for i := 0; i < len(simpleCases); i += 2 {
 		ctx.Req.Body = io.NopCloser(strings.NewReader(simpleCases[i]))

routers/common/markup.go

@@ -11,6 +11,8 @@ import (
 	"path"
 	"strings"
 
+	"code.gitea.io/gitea/models/renderhelper"
+	"code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/modules/httplib"
 	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
@@ -20,7 +22,7 @@ import (
 )
 
 // RenderMarkup renders markup text for the /markup and /markdown endpoints
-func RenderMarkup(ctx *context.Base, repo *context.Repository, mode, text, urlPathContext, filePath string) {
+func RenderMarkup(ctx *context.Base, ctxRepo *context.Repository, mode, text, urlPathContext, filePath string) {
 	// urlPathContext format is "/subpath/{user}/{repo}/src/{branch, commit, tag}/{identifier/path}/{file/dir}"
 	// filePath is the path of the file to render if the end user is trying to preview a repo file (mode == "file")
 	// filePath will be used as RenderContext.RelativePath
@@ -28,60 +30,67 @@ func RenderMarkup(ctx *context.Base, repo *context.Repository, mode, text, urlPa
 	// for example, when previewing file "/gitea/owner/repo/src/branch/features/feat-123/doc/CHANGE.md", then filePath is "doc/CHANGE.md"
 	// and the urlPathContext is "/gitea/owner/repo/src/branch/features/feat-123/doc"
 
-	renderCtx := markup.NewRenderContext(ctx).
-		WithLinks(markup.Links{AbsolutePrefix: true}).
-		WithMarkupType(markdown.MarkupName)
-
-	if urlPathContext != "" {
-		renderCtx.RenderOptions.Links.Base = fmt.Sprintf("%s%s", httplib.GuessCurrentHostURL(ctx), urlPathContext)
-	}
-
 	if mode == "" || mode == "markdown" {
 		// raw markdown doesn't need any special handling
-		if err := markdown.RenderRaw(renderCtx, strings.NewReader(text), ctx.Resp); err != nil {
+		baseLink := urlPathContext
+		if baseLink == "" {
+			baseLink = fmt.Sprintf("%s%s", httplib.GuessCurrentHostURL(ctx), urlPathContext)
+		}
+		rctx := renderhelper.NewRenderContextSimpleDocument(ctx, baseLink).WithUseAbsoluteLink(true).
+			WithMarkupType(markdown.MarkupName)
+		if err := markdown.RenderRaw(rctx, strings.NewReader(text), ctx.Resp); err != nil {
 			ctx.Error(http.StatusInternalServerError, err.Error())
 		}
 		return
 	}
+
+	// Ideally, this handler should be called with RepoAssigment and get the related repo from context "/owner/repo/markup"
+	// then render could use the repo to do various things (the permission check has passed)
+	//
+	// However, this handler is also exposed as "/markup" without any repo context,
+	// then since there is no permission check, so we can't use the repo from "context" parameter,
+	// in this case, only the "path" information could be used which doesn't cause security problems.
+	var repoModel *repo.Repository
+	if ctxRepo != nil {
+		repoModel = ctxRepo.Repository
+	}
+	var repoOwnerName, repoName, refPath, treePath string
+	repoLinkPath := strings.TrimPrefix(urlPathContext, setting.AppSubURL+"/")
+	fields := strings.SplitN(repoLinkPath, "/", 5)
+	if len(fields) == 5 && fields[2] == "src" && (fields[3] == "branch" || fields[3] == "commit" || fields[3] == "tag") {
+		// absolute base prefix is something like "https://host/subpath/{user}/{repo}"
+		repoOwnerName, repoName = fields[0], fields[1]
+		treePath = path.Dir(filePath)                       // it is "doc" if filePath is "doc/CHANGE.md"
+		refPath = strings.Join(fields[3:], "/")             // it is "branch/features/feat-12/doc"
+		refPath = strings.TrimSuffix(refPath, "/"+treePath) // now we get the correct branch path: "branch/features/feat-12"
+	} else if fields = strings.SplitN(repoLinkPath, "/", 3); len(fields) == 2 {
+		repoOwnerName, repoName = fields[0], fields[1]
+	}
+
+	var rctx *markup.RenderContext
 	switch mode {
-	case "gfm": // legacy mode, do nothing
+	case "gfm": // legacy mode
+		rctx = renderhelper.NewRenderContextRepoFile(ctx, repoModel, renderhelper.RepoFileOptions{
+			DeprecatedOwnerName: repoOwnerName, DeprecatedRepoName: repoName,
+			CurrentRefPath: refPath, CurrentTreePath: treePath,
+		})
+		rctx = rctx.WithMarkupType(markdown.MarkupName)
 	case "comment":
-		renderCtx = renderCtx.WithMetas(map[string]string{"markdownLineBreakStyle": "comment"})
+		rctx = renderhelper.NewRenderContextRepoComment(ctx, repoModel, renderhelper.RepoCommentOptions{DeprecatedOwnerName: repoOwnerName, DeprecatedRepoName: repoName})
 	case "wiki":
-		renderCtx = renderCtx.WithMetas(map[string]string{"markdownLineBreakStyle": "document", "markupContentMode": "wiki"})
+		rctx = renderhelper.NewRenderContextRepoWiki(ctx, repoModel, renderhelper.RepoWikiOptions{DeprecatedOwnerName: repoOwnerName, DeprecatedRepoName: repoName})
 	case "file":
-		// render the repo file content by its extension
-		renderCtx = renderCtx.WithMetas(map[string]string{"markdownLineBreakStyle": "document"}).
-			WithMarkupType("").
-			WithRelativePath(filePath)
+		rctx = renderhelper.NewRenderContextRepoFile(ctx, repoModel, renderhelper.RepoFileOptions{
+			DeprecatedOwnerName: repoOwnerName, DeprecatedRepoName: repoName,
+			CurrentRefPath: refPath, CurrentTreePath: treePath,
+		})
+		rctx = rctx.WithMarkupType("").WithRelativePath(filePath) // render the repo file content by its extension
 	default:
 		ctx.Error(http.StatusUnprocessableEntity, fmt.Sprintf("Unknown mode: %s", mode))
 		return
 	}
-
-	fields := strings.SplitN(strings.TrimPrefix(urlPathContext, setting.AppSubURL+"/"), "/", 5)
-	if len(fields) == 5 && fields[2] == "src" && (fields[3] == "branch" || fields[3] == "commit" || fields[3] == "tag") {
-		// absolute base prefix is something like "https://host/subpath/{user}/{repo}"
-		absoluteBasePrefix := fmt.Sprintf("%s%s/%s", httplib.GuessCurrentAppURL(ctx), fields[0], fields[1])
-
-		fileDir := path.Dir(filePath)                      // it is "doc" if filePath is "doc/CHANGE.md"
-		refPath := strings.Join(fields[3:], "/")           // it is "branch/features/feat-12/doc"
-		refPath = strings.TrimSuffix(refPath, "/"+fileDir) // now we get the correct branch path: "branch/features/feat-12"
-
-		renderCtx = renderCtx.WithLinks(markup.Links{AbsolutePrefix: true, Base: absoluteBasePrefix, BranchPath: refPath, TreePath: fileDir})
-	}
-
-	if repo != nil && repo.Repository != nil {
-		renderCtx = renderCtx.WithRepoFacade(repo.Repository)
-		if mode == "file" {
-			renderCtx = renderCtx.WithMetas(repo.Repository.ComposeDocumentMetas(ctx))
-		} else if mode == "wiki" {
-			renderCtx = renderCtx.WithMetas(repo.Repository.ComposeWikiMetas(ctx))
-		} else if mode == "comment" {
-			renderCtx = renderCtx.WithMetas(repo.Repository.ComposeMetas(ctx))
-		}
-	}
-	if err := markup.Render(renderCtx, strings.NewReader(text), ctx.Resp); err != nil {
+	rctx = rctx.WithUseAbsoluteLink(true)
+	if err := markup.Render(rctx, strings.NewReader(text), ctx.Resp); err != nil {
 		if errors.Is(err, util.ErrInvalidArgument) {
 			ctx.Error(http.StatusUnprocessableEntity, err.Error())
 		} else {

routers/web/feed/convert.go

@@ -13,8 +13,8 @@ import (
 	"strings"
 
 	activities_model "code.gitea.io/gitea/models/activities"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/templates"
@@ -48,22 +48,18 @@ func toReleaseLink(ctx *context.Context, act *activities_model.Action) string {
 	return act.GetRepoAbsoluteLink(ctx) + "/releases/tag/" + util.PathEscapeSegments(act.GetBranch())
 }
 
-// renderMarkdown creates a minimal markdown render context from an action.
-// If rendering fails, the original markdown text is returned
-func renderMarkdown(ctx *context.Context, act *activities_model.Action, content string) template.HTML {
-	markdownCtx := markup.NewRenderContext(ctx).
-		WithLinks(markup.Links{
-			Base: act.GetRepoLink(ctx),
-		}).
-		WithMetas(map[string]string{ // FIXME: not right here, it should use issue to compose the metas
-			"user": act.GetRepoUserName(ctx),
-			"repo": act.GetRepoName(ctx),
-		})
-	markdown, err := markdown.RenderString(markdownCtx, content)
-	if err != nil {
-		return templates.SanitizeHTML(content) // old code did so: use SanitizeHTML to render in tmpl
+// renderCommentMarkdown renders the comment markdown to html
+func renderCommentMarkdown(ctx *context.Context, act *activities_model.Action, content string) template.HTML {
+	act.LoadRepo(ctx)
+	if act.Repo == nil {
+		return ""
 	}
-	return markdown
+	rctx := renderhelper.NewRenderContextRepoComment(ctx, act.Repo).WithUseAbsoluteLink(true)
+	rendered, err := markdown.RenderString(rctx, content)
+	if err != nil {
+		return ""
+	}
+	return rendered
 }
 
 // feedActionsToFeedItems convert gitea's Action feed to feeds Item
@@ -225,12 +221,12 @@ func feedActionsToFeedItems(ctx *context.Context, actions activities_model.Actio
 
 			case activities_model.ActionCreateIssue, activities_model.ActionCreatePullRequest:
 				desc = strings.Join(act.GetIssueInfos(), "#")
-				content = renderMarkdown(ctx, act, act.GetIssueContent(ctx))
+				content = renderCommentMarkdown(ctx, act, act.GetIssueContent(ctx))
 			case activities_model.ActionCommentIssue, activities_model.ActionApprovePullRequest, activities_model.ActionRejectPullRequest, activities_model.ActionCommentPull:
 				desc = act.GetIssueTitle(ctx)
 				comment := act.GetIssueInfos()[1]
 				if len(comment) != 0 {
-					desc += "\n\n" + string(renderMarkdown(ctx, act, comment))
+					desc += "\n\n" + string(renderCommentMarkdown(ctx, act, comment))
 				}
 			case activities_model.ActionMergePullRequest, activities_model.ActionAutoMergePullRequest:
 				desc = act.GetIssueInfos()[1]
@@ -294,12 +290,8 @@ func releasesToFeedItems(ctx *context.Context, releases []*repo_model.Release) (
 		}
 
 		link := &feeds.Link{Href: rel.HTMLURL()}
-		content, err = markdown.RenderString(markup.NewRenderContext(ctx).
-			WithRepoFacade(rel.Repo).
-			WithLinks(markup.Links{
-				Base: rel.Repo.Link(),
-			}).
-			WithMetas(rel.Repo.ComposeMetas(ctx)),
+		rctx := renderhelper.NewRenderContextRepoComment(ctx, rel.Repo).WithUseAbsoluteLink(true)
+		content, err = markdown.RenderString(rctx,
 			rel.Note)
 		if err != nil {
 			return nil, err

routers/web/feed/profile.go

@@ -7,7 +7,7 @@ import (
 	"time"
 
 	activities_model "code.gitea.io/gitea/models/activities"
-	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/models/renderhelper"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/services/context"
 
@@ -41,9 +41,8 @@ func showUserFeed(ctx *context.Context, formatType string) {
 		return
 	}
 
-	ctxUserDescription, err := markdown.RenderString(markup.NewRenderContext(ctx).
-		WithLinks(markup.Links{Base: ctx.ContextUser.HTMLURL()}).
-		WithMetas(markup.ComposeSimpleDocumentMetas()),
+	rctx := renderhelper.NewRenderContextSimpleDocument(ctx, ctx.ContextUser.HTMLURL())
+	ctxUserDescription, err := markdown.RenderString(rctx,
 		ctx.ContextUser.Description)
 	if err != nil {
 		ctx.ServerError("RenderString", err)

routers/web/org/home.go

@@ -11,10 +11,10 @@ import (
 
 	"code.gitea.io/gitea/models/db"
 	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/util"
@@ -180,16 +180,10 @@ func prepareOrgProfileReadme(ctx *context.Context, viewRepositories bool) bool {
 	if bytes, err := profileReadme.GetBlobContent(setting.UI.MaxDisplayFileSize); err != nil {
 		log.Error("failed to GetBlobContent: %v", err)
 	} else {
-		if profileContent, err := markdown.RenderString(markup.NewRenderContext(ctx).
-			WithGitRepo(profileGitRepo).
-			WithLinks(markup.Links{
-				// Pass repo link to markdown render for the full link of media elements.
-				// The profile of default branch would be shown.
-				Base:       profileDbRepo.Link(),
-				BranchPath: path.Join("branch", util.PathEscapeSegments(profileDbRepo.DefaultBranch)),
-			}).
-			WithMetas(markup.ComposeSimpleDocumentMetas()),
-			bytes); err != nil {
+		rctx := renderhelper.NewRenderContextRepoFile(ctx, profileDbRepo, renderhelper.RepoFileOptions{
+			CurrentRefPath: path.Join("branch", util.PathEscapeSegments(profileDbRepo.DefaultBranch)),
+		})
+		if profileContent, err := markdown.RenderString(rctx, bytes); err != nil {
 			log.Error("failed to RenderString: %v", err)
 		} else {
 			ctx.Data["ProfileReadme"] = profileContent

routers/web/repo/commit.go

@@ -15,6 +15,7 @@ import (
 	asymkey_model "code.gitea.io/gitea/models/asymkey"
 	"code.gitea.io/gitea/models/db"
 	git_model "code.gitea.io/gitea/models/git"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	unit_model "code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -392,15 +393,8 @@ func Diff(ctx *context.Context) {
 	if err == nil {
 		ctx.Data["NoteCommit"] = note.Commit
 		ctx.Data["NoteAuthor"] = user_model.ValidateCommitWithEmail(ctx, note.Commit)
-		ctx.Data["NoteRendered"], err = markup.RenderCommitMessage(markup.NewRenderContext(ctx).
-			WithLinks(markup.Links{
-				Base:       ctx.Repo.RepoLink,
-				BranchPath: path.Join("commit", util.PathEscapeSegments(commitID)),
-			}).
-			WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-			WithGitRepo(ctx.Repo.GitRepo).
-			WithRepoFacade(ctx.Repo.Repository),
-			template.HTMLEscapeString(string(charset.ToUTF8WithFallback(note.Message, charset.ConvertOpts{}))))
+		rctx := renderhelper.NewRenderContextRepoComment(ctx, ctx.Repo.Repository, renderhelper.RepoCommentOptions{CurrentRefPath: path.Join("commit", util.PathEscapeSegments(commitID))})
+		ctx.Data["NoteRendered"], err = markup.RenderCommitMessage(rctx, template.HTMLEscapeString(string(charset.ToUTF8WithFallback(note.Message, charset.ConvertOpts{}))))
 		if err != nil {
 			ctx.ServerError("RenderCommitMessage", err)
 			return

routers/web/repo/issue.go

@@ -18,12 +18,12 @@ import (
 	"code.gitea.io/gitea/models/organization"
 	access_model "code.gitea.io/gitea/models/perm/access"
 	project_model "code.gitea.io/gitea/models/project"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/optional"
 	api "code.gitea.io/gitea/modules/structs"
@@ -366,12 +366,8 @@ func UpdateIssueContent(ctx *context.Context) {
 		}
 	}
 
-	content, err := markdown.RenderString(markup.NewRenderContext(ctx).
-		WithLinks(markup.Links{Base: ctx.FormString("context")}).
-		WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-		WithGitRepo(ctx.Repo.GitRepo).
-		WithRepoFacade(ctx.Repo.Repository),
-		issue.Content)
+	rctx := renderhelper.NewRenderContextRepoComment(ctx, ctx.Repo.Repository)
+	content, err := markdown.RenderString(rctx, issue.Content)
 	if err != nil {
 		ctx.ServerError("RenderString", err)
 		return

routers/web/repo/issue_comment.go

@@ -10,10 +10,10 @@ import (
 	"net/http"
 
 	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/renderhelper"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	repo_module "code.gitea.io/gitea/modules/repository"
 	"code.gitea.io/gitea/modules/setting"
@@ -267,12 +267,8 @@ func UpdateCommentContent(ctx *context.Context) {
 
 	var renderedContent template.HTML
 	if comment.Content != "" {
-		renderedContent, err = markdown.RenderString(markup.NewRenderContext(ctx).
-			WithLinks(markup.Links{Base: ctx.FormString("context")}).
-			WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-			WithGitRepo(ctx.Repo.GitRepo).
-			WithRepoFacade(ctx.Repo.Repository),
-			comment.Content)
+		rctx := renderhelper.NewRenderContextRepoComment(ctx, ctx.Repo.Repository)
+		renderedContent, err = markdown.RenderString(rctx, comment.Content)
 		if err != nil {
 			ctx.ServerError("RenderString", err)
 			return

routers/web/repo/issue_view.go

@@ -19,6 +19,7 @@ import (
 	access_model "code.gitea.io/gitea/models/perm/access"
 	project_model "code.gitea.io/gitea/models/project"
 	pull_model "code.gitea.io/gitea/models/pull"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -359,12 +360,8 @@ func ViewIssue(ctx *context.Context) {
 		}
 	}
 	ctx.Data["IssueWatch"] = iw
-	issue.RenderedContent, err = markdown.RenderString(markup.NewRenderContext(ctx).
-		WithLinks(markup.Links{Base: ctx.Repo.RepoLink}).
-		WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-		WithGitRepo(ctx.Repo.GitRepo).
-		WithRepoFacade(ctx.Repo.Repository),
-		issue.Content)
+	rctx := renderhelper.NewRenderContextRepoComment(ctx, ctx.Repo.Repository)
+	issue.RenderedContent, err = markdown.RenderString(rctx, issue.Content)
 	if err != nil {
 		ctx.ServerError("RenderString", err)
 		return
@@ -464,14 +461,8 @@ func ViewIssue(ctx *context.Context) {
 		comment.Issue = issue
 
 		if comment.Type == issues_model.CommentTypeComment || comment.Type == issues_model.CommentTypeReview {
-			comment.RenderedContent, err = markdown.RenderString(markup.NewRenderContext(ctx).
-				WithLinks(markup.Links{
-					Base: ctx.Repo.RepoLink,
-				}).
-				WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-				WithGitRepo(ctx.Repo.GitRepo).
-				WithRepoFacade(ctx.Repo.Repository),
-				comment.Content)
+			rctx = renderhelper.NewRenderContextRepoComment(ctx, repo)
+			comment.RenderedContent, err = markdown.RenderString(rctx, comment.Content)
 			if err != nil {
 				ctx.ServerError("RenderString", err)
 				return
@@ -546,12 +537,8 @@ func ViewIssue(ctx *context.Context) {
 				}
 			}
 		} else if comment.Type.HasContentSupport() {
-			comment.RenderedContent, err = markdown.RenderString(markup.NewRenderContext(ctx).
-				WithLinks(markup.Links{Base: ctx.Repo.RepoLink}).
-				WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-				WithGitRepo(ctx.Repo.GitRepo).
-				WithRepoFacade(ctx.Repo.Repository),
-				comment.Content)
+			rctx = renderhelper.NewRenderContextRepoComment(ctx, repo)
+			comment.RenderedContent, err = markdown.RenderString(rctx, comment.Content)
 			if err != nil {
 				ctx.ServerError("RenderString", err)
 				return

routers/web/repo/milestone.go

@@ -10,8 +10,8 @@ import (
 
 	"code.gitea.io/gitea/models/db"
 	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/renderhelper"
 	"code.gitea.io/gitea/modules/base"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/optional"
 	"code.gitea.io/gitea/modules/setting"
@@ -79,12 +79,8 @@ func Milestones(ctx *context.Context) {
 		}
 	}
 	for _, m := range miles {
-		m.RenderedContent, err = markdown.RenderString(markup.NewRenderContext(ctx).
-			WithLinks(markup.Links{Base: ctx.Repo.RepoLink}).
-			WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-			WithGitRepo(ctx.Repo.GitRepo).
-			WithRepoFacade(ctx.Repo.Repository),
-			m.Content)
+		rctx := renderhelper.NewRenderContextRepoComment(ctx, ctx.Repo.Repository)
+		m.RenderedContent, err = markdown.RenderString(rctx, m.Content)
 		if err != nil {
 			ctx.ServerError("RenderString", err)
 			return
@@ -265,12 +261,8 @@ func MilestoneIssuesAndPulls(ctx *context.Context) {
 		return
 	}
 
-	milestone.RenderedContent, err = markdown.RenderString(markup.NewRenderContext(ctx).
-		WithLinks(markup.Links{Base: ctx.Repo.RepoLink}).
-		WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-		WithGitRepo(ctx.Repo.GitRepo).
-		WithRepoFacade(ctx.Repo.Repository),
-		milestone.Content)
+	rctx := renderhelper.NewRenderContextRepoComment(ctx, ctx.Repo.Repository)
+	milestone.RenderedContent, err = markdown.RenderString(rctx, milestone.Content)
 	if err != nil {
 		ctx.ServerError("RenderString", err)
 		return

routers/web/repo/projects.go

@@ -13,11 +13,11 @@ import (
 	issues_model "code.gitea.io/gitea/models/issues"
 	"code.gitea.io/gitea/models/perm"
 	project_model "code.gitea.io/gitea/models/project"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/json"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/optional"
 	"code.gitea.io/gitea/modules/setting"
@@ -92,12 +92,8 @@ func Projects(ctx *context.Context) {
 	}
 
 	for i := range projects {
-		projects[i].RenderedContent, err = markdown.RenderString(markup.NewRenderContext(ctx).
-			WithLinks(markup.Links{Base: ctx.Repo.RepoLink}).
-			WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-			WithGitRepo(ctx.Repo.GitRepo).
-			WithRepoFacade(ctx.Repo.Repository),
-			projects[i].Description)
+		rctx := renderhelper.NewRenderContextRepoComment(ctx, repo)
+		projects[i].RenderedContent, err = markdown.RenderString(rctx, projects[i].Description)
 		if err != nil {
 			ctx.ServerError("RenderString", err)
 			return
@@ -422,12 +418,8 @@ func ViewProject(ctx *context.Context) {
 	ctx.Data["SelectLabels"] = selectLabels
 	ctx.Data["AssigneeID"] = assigneeID
 
-	project.RenderedContent, err = markdown.RenderString(markup.NewRenderContext(ctx).
-		WithLinks(markup.Links{Base: ctx.Repo.RepoLink}).
-		WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-		WithGitRepo(ctx.Repo.GitRepo).
-		WithRepoFacade(ctx.Repo.Repository),
-		project.Description)
+	rctx := renderhelper.NewRenderContextRepoComment(ctx, ctx.Repo.Repository)
+	project.RenderedContent, err = markdown.RenderString(rctx, project.Description)
 	if err != nil {
 		ctx.ServerError("RenderString", err)
 		return

routers/web/repo/release.go

@@ -13,13 +13,13 @@ import (
 	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/models/db"
 	git_model "code.gitea.io/gitea/models/git"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/optional"
 	"code.gitea.io/gitea/modules/setting"
@@ -114,12 +114,8 @@ func getReleaseInfos(ctx *context.Context, opts *repo_model.FindReleasesOptions)
 			cacheUsers[r.PublisherID] = r.Publisher
 		}
 
-		r.RenderedNote, err = markdown.RenderString(markup.NewRenderContext(ctx).
-			WithLinks(markup.Links{Base: ctx.Repo.RepoLink}).
-			WithMetas(ctx.Repo.Repository.ComposeMetas(ctx)).
-			WithGitRepo(ctx.Repo.GitRepo).
-			WithRepoFacade(ctx.Repo.Repository),
-			r.Note)
+		rctx := renderhelper.NewRenderContextRepoComment(ctx, r.Repo)
+		r.RenderedNote, err = markdown.RenderString(rctx, r.Note)
 		if err != nil {
 			return nil, err
 		}

routers/web/repo/render.go

@@ -9,6 +9,7 @@ import (
 	"net/http"
 	"path"
 
+	"code.gitea.io/gitea/models/renderhelper"
 	"code.gitea.io/gitea/modules/charset"
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
@@ -56,17 +57,12 @@ func RenderFile(ctx *context.Context) {
 		return
 	}
 
-	err = markup.Render(markup.NewRenderContext(ctx).
-		WithRelativePath(ctx.Repo.TreePath).
-		WithLinks(markup.Links{
-			Base:       ctx.Repo.RepoLink,
-			BranchPath: ctx.Repo.BranchNameSubURL(),
-			TreePath:   path.Dir(ctx.Repo.TreePath),
-		}).
-		WithMetas(ctx.Repo.Repository.ComposeDocumentMetas(ctx)).
-		WithGitRepo(ctx.Repo.GitRepo).
-		WithInStandalonePage(true),
-		rd, ctx.Resp)
+	rctx := renderhelper.NewRenderContextRepoFile(ctx, ctx.Repo.Repository, renderhelper.RepoFileOptions{
+		CurrentRefPath:  ctx.Repo.BranchNameSubURL(),
+		CurrentTreePath: path.Dir(ctx.Repo.TreePath),
+	}).WithRelativePath(ctx.Repo.TreePath).WithInStandalonePage(true)
+
+	err = markup.Render(rctx, rd, ctx.Resp)
 	if err != nil {
 		log.Error("Failed to render file %q: %v", ctx.Repo.TreePath, err)
 		http.Error(ctx.Resp, "Failed to render file", http.StatusInternalServerError)

routers/web/repo/view.go

@@ -31,6 +31,7 @@ import (
 	git_model "code.gitea.io/gitea/models/git"
 	issue_model "code.gitea.io/gitea/models/issues"
 	access_model "code.gitea.io/gitea/models/perm/access"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	unit_model "code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -310,17 +311,14 @@ func renderReadmeFile(ctx *context.Context, subfolder string, readmeFile *git.Tr
 		ctx.Data["IsMarkup"] = true
 		ctx.Data["MarkupType"] = markupType
 
-		ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, markup.NewRenderContext(ctx).
-			WithMarkupType(markupType).
-			WithRelativePath(path.Join(ctx.Repo.TreePath, readmeFile.Name())). // ctx.Repo.TreePath is the directory not the Readme so we must append the Readme filename (and path).
-			WithLinks(markup.Links{
-				Base:       ctx.Repo.RepoLink,
-				BranchPath: ctx.Repo.BranchNameSubURL(),
-				TreePath:   path.Join(ctx.Repo.TreePath, subfolder),
+		rctx := renderhelper.NewRenderContextRepoFile(ctx, ctx.Repo.Repository, renderhelper.RepoFileOptions{
+			CurrentRefPath:  ctx.Repo.BranchNameSubURL(),
+			CurrentTreePath: path.Join(ctx.Repo.TreePath, subfolder),
 		}).
-			WithMetas(ctx.Repo.Repository.ComposeDocumentMetas(ctx)).
-			WithGitRepo(ctx.Repo.GitRepo),
-			rd)
+			WithMarkupType(markupType).
+			WithRelativePath(path.Join(ctx.Repo.TreePath, subfolder, readmeFile.Name())) // ctx.Repo.TreePath is the directory not the Readme so we must append the Readme filename (and path).
+
+		ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, rctx, rd)
 		if err != nil {
 			log.Error("Render failed for %s in %-v: %v Falling back to rendering source", readmeFile.Name(), ctx.Repo.Repository, err)
 			delete(ctx.Data, "IsMarkup")
@@ -513,17 +511,15 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry) {
 			ctx.Data["MarkupType"] = markupType
 			metas := ctx.Repo.Repository.ComposeDocumentMetas(ctx)
 			metas["BranchNameSubURL"] = ctx.Repo.BranchNameSubURL()
-			ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, markup.NewRenderContext(ctx).
+			rctx := renderhelper.NewRenderContextRepoFile(ctx, ctx.Repo.Repository, renderhelper.RepoFileOptions{
+				CurrentRefPath:  ctx.Repo.BranchNameSubURL(),
+				CurrentTreePath: path.Dir(ctx.Repo.TreePath),
+			}).
 				WithMarkupType(markupType).
 				WithRelativePath(ctx.Repo.TreePath).
-				WithLinks(markup.Links{
-					Base:       ctx.Repo.RepoLink,
-					BranchPath: ctx.Repo.BranchNameSubURL(),
-					TreePath:   path.Dir(ctx.Repo.TreePath),
-				}).
-				WithMetas(metas).
-				WithGitRepo(ctx.Repo.GitRepo),
-				rd)
+				WithMetas(metas)
+
+			ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, rctx, rd)
 			if err != nil {
 				ctx.ServerError("Render", err)
 				return
@@ -604,17 +600,15 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry) {
 			rd := io.MultiReader(bytes.NewReader(buf), dataRc)
 			ctx.Data["IsMarkup"] = true
 			ctx.Data["MarkupType"] = markupType
-			ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, markup.NewRenderContext(ctx).
-				WithMarkupType(markupType).
-				WithRelativePath(ctx.Repo.TreePath).
-				WithLinks(markup.Links{
-					Base:       ctx.Repo.RepoLink,
-					BranchPath: ctx.Repo.BranchNameSubURL(),
-					TreePath:   path.Dir(ctx.Repo.TreePath),
+
+			rctx := renderhelper.NewRenderContextRepoFile(ctx, ctx.Repo.Repository, renderhelper.RepoFileOptions{
+				CurrentRefPath:  ctx.Repo.BranchNameSubURL(),
+				CurrentTreePath: path.Dir(ctx.Repo.TreePath),
 			}).
-				WithMetas(ctx.Repo.Repository.ComposeDocumentMetas(ctx)).
-				WithGitRepo(ctx.Repo.GitRepo),
-				rd)
+				WithMarkupType(markupType).
+				WithRelativePath(ctx.Repo.TreePath)
+
+			ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, rctx, rd)
 			if err != nil {
 				ctx.ServerError("Render", err)
 				return

routers/web/repo/wiki.go

@@ -14,6 +14,7 @@ import (
 	"strings"
 
 	git_model "code.gitea.io/gitea/models/git"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	"code.gitea.io/gitea/modules/base"
@@ -288,11 +289,9 @@ func renderViewPage(ctx *context.Context) (*git.Repository, *git.TreeEntry) {
 		footerContent = data
 	}
 
-	rctx := markup.NewRenderContext(ctx).
-		WithMetas(ctx.Repo.Repository.ComposeWikiMetas(ctx)).
-		WithLinks(markup.Links{Base: ctx.Repo.RepoLink})
-	buf := &strings.Builder{}
+	rctx := renderhelper.NewRenderContextRepoWiki(ctx, ctx.Repo.Repository)
 
+	buf := &strings.Builder{}
 	renderFn := func(data []byte) (escaped *charset.EscapeStatus, output string, err error) {
 		markupRd, markupWr := io.Pipe()
 		defer markupWr.Close()

routers/web/user/home.go

@@ -20,6 +20,7 @@ import (
 	git_model "code.gitea.io/gitea/models/git"
 	issues_model "code.gitea.io/gitea/models/issues"
 	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -27,7 +28,6 @@ import (
 	"code.gitea.io/gitea/modules/container"
 	issue_indexer "code.gitea.io/gitea/modules/indexer/issues"
 	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/optional"
 	"code.gitea.io/gitea/modules/setting"
@@ -257,11 +257,8 @@ func Milestones(ctx *context.Context) {
 			continue
 		}
 
-		milestones[i].RenderedContent, err = markdown.RenderString(markup.NewRenderContext(ctx).
-			WithLinks(markup.Links{Base: milestones[i].Repo.Link()}).
-			WithMetas(milestones[i].Repo.ComposeMetas(ctx)).
-			WithRepoFacade(milestones[i].Repo),
-			milestones[i].Content)
+		rctx := renderhelper.NewRenderContextRepoComment(ctx, milestones[i].Repo)
+		milestones[i].RenderedContent, err = markdown.RenderString(rctx, milestones[i].Content)
 		if err != nil {
 			ctx.ServerError("RenderString", err)
 			return

routers/web/user/profile.go

@@ -12,12 +12,12 @@ import (
 
 	activities_model "code.gitea.io/gitea/models/activities"
 	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/optional"
 	"code.gitea.io/gitea/modules/setting"
@@ -72,17 +72,17 @@ func userProfile(ctx *context.Context) {
 		ctx.Data["HeatmapTotalContributions"] = activities_model.GetTotalContributionsInHeatmap(data)
 	}
 
-	profileDbRepo, profileGitRepo, profileReadmeBlob, profileClose := shared_user.FindUserProfileReadme(ctx, ctx.Doer)
+	profileDbRepo, _ /*profileGitRepo*/, profileReadmeBlob, profileClose := shared_user.FindUserProfileReadme(ctx, ctx.Doer)
 	defer profileClose()
 
 	showPrivate := ctx.IsSigned && (ctx.Doer.IsAdmin || ctx.Doer.ID == ctx.ContextUser.ID)
-	prepareUserProfileTabData(ctx, showPrivate, profileDbRepo, profileGitRepo, profileReadmeBlob)
+	prepareUserProfileTabData(ctx, showPrivate, profileDbRepo, profileReadmeBlob)
 	// call PrepareContextForProfileBigAvatar later to avoid re-querying the NumFollowers & NumFollowing
 	shared_user.PrepareContextForProfileBigAvatar(ctx)
 	ctx.HTML(http.StatusOK, tplProfile)
 }
 
-func prepareUserProfileTabData(ctx *context.Context, showPrivate bool, profileDbRepo *repo_model.Repository, profileGitRepo *git.Repository, profileReadme *git.Blob) {
+func prepareUserProfileTabData(ctx *context.Context, showPrivate bool, profileDbRepo *repo_model.Repository, profileReadme *git.Blob) {
 	// if there is a profile readme, default to "overview" page, otherwise, default to "repositories" page
 	// if there is not a profile readme, the overview tab should be treated as the repositories tab
 	tab := ctx.FormString("tab")
@@ -246,18 +246,10 @@ func prepareUserProfileTabData(ctx *context.Context, showPrivate bool, profileDb
 		if bytes, err := profileReadme.GetBlobContent(setting.UI.MaxDisplayFileSize); err != nil {
 			log.Error("failed to GetBlobContent: %v", err)
 		} else {
-			if profileContent, err := markdown.RenderString(markup.NewRenderContext(ctx).
-				WithGitRepo(profileGitRepo).
-				WithLinks(markup.Links{
-					// Give the repo link to the markdown render for the full link of media element.
-					// the media link usually be like /[user]/[repoName]/media/branch/[branchName],
-					// 	Eg. /Tom/.profile/media/branch/main
-					// The branch shown on the profile page is the default branch, this need to be in sync with doc, see:
-					//	https://docs.gitea.com/usage/profile-readme
-					Base:       profileDbRepo.Link(),
-					BranchPath: path.Join("branch", util.PathEscapeSegments(profileDbRepo.DefaultBranch)),
-				}),
-				bytes); err != nil {
+			rctx := renderhelper.NewRenderContextRepoFile(ctx, profileDbRepo, renderhelper.RepoFileOptions{
+				CurrentRefPath: path.Join("branch", util.PathEscapeSegments(profileDbRepo.DefaultBranch)),
+			})
+			if profileContent, err := markdown.RenderString(rctx, bytes); err != nil {
 				log.Error("failed to RenderString: %v", err)
 			} else {
 				ctx.Data["ProfileReadme"] = profileContent

services/mailer/mail.go

@@ -18,12 +18,12 @@ import (
 
 	activities_model "code.gitea.io/gitea/models/activities"
 	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/emoji"
 	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/timeutil"
@@ -219,10 +219,8 @@ func composeIssueCommentMessages(ctx *mailCommentContext, lang string, recipient
 	}
 
 	// This is the body of the new issue or comment, not the mail body
-	body, err := markdown.RenderString(markup.NewRenderContext(ctx).
-		WithRepoFacade(ctx.Issue.Repo).
-		WithLinks(markup.Links{AbsolutePrefix: true, Base: ctx.Issue.Repo.HTMLURL()}).
-		WithMetas(ctx.Issue.Repo.ComposeMetas(ctx)),
+	rctx := renderhelper.NewRenderContextRepoComment(ctx.Context, ctx.Issue.Repo).WithUseAbsoluteLink(true)
+	body, err := markdown.RenderString(rctx,
 		ctx.Content)
 	if err != nil {
 		return nil, err

services/mailer/mail_release.go

@@ -7,11 +7,11 @@ import (
 	"bytes"
 	"context"
 
+	"code.gitea.io/gitea/models/renderhelper"
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/markup"
 	"code.gitea.io/gitea/modules/markup/markdown"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/translation"
@@ -56,10 +56,8 @@ func mailNewRelease(ctx context.Context, lang string, tos []*user_model.User, re
 	locale := translation.NewLocale(lang)
 
 	var err error
-	rel.RenderedNote, err = markdown.RenderString(markup.NewRenderContext(ctx).
-		WithRepoFacade(rel.Repo).
-		WithLinks(markup.Links{Base: rel.Repo.HTMLURL()}).
-		WithMetas(rel.Repo.ComposeMetas(ctx)),
+	rctx := renderhelper.NewRenderContextRepoComment(ctx, rel.Repo).WithUseAbsoluteLink(true)
+	rel.RenderedNote, err = markdown.RenderString(rctx,
 		rel.Note)
 	if err != nil {
 		log.Error("markdown.RenderString(%d): %v", rel.RepoID, err)

services/mailer/mail_test.go

@@ -70,7 +70,7 @@ func prepareMailerTest(t *testing.T) (doer *user_model.User, repo *repo_model.Re
 func TestComposeIssueCommentMessage(t *testing.T) {
 	doer, _, issue, comment := prepareMailerTest(t)
 
-	markup.Init(&markup.ProcessorHelper{
+	markup.Init(&markup.RenderHelperFuncs{
 		IsUsernameMentionable: func(ctx context.Context, username string) bool {
 			return username == doer.Name
 		},

services/markup/processorhelper.go

@@ -11,10 +11,8 @@ import (
 	gitea_context "code.gitea.io/gitea/services/context"
 )
 
-func ProcessorHelper() *markup.ProcessorHelper {
-	return &markup.ProcessorHelper{
-		ElementDir: "auto", // set dir="auto" for necessary (eg: <p>, <h?>, etc) tags
-
+func ProcessorHelper() *markup.RenderHelperFuncs {
+	return &markup.RenderHelperFuncs{
 		RenderRepoFileCodePreview: renderRepoFileCodePreview,
 		IsUsernameMentionable: func(ctx context.Context, username string) bool {
 			mentionedUser, err := user.GetUserByName(ctx, username)

tests/fuzz/fuzz_test.go

@@ -5,7 +5,6 @@ package fuzz
 
 import (
 	"bytes"
-	"context"
 	"io"
 	"testing"
 
@@ -15,9 +14,7 @@ import (
 )
 
 func newFuzzRenderContext() *markup.RenderContext {
-	return markup.NewRenderContext(context.Background()).
-		WithLinks(markup.Links{Base: "https://example.com/go-gitea/gitea"}).
-		WithMetas(map[string]string{"user": "go-gitea", "repo": "gitea"})
+	return markup.NewTestRenderContext("https://example.com/go-gitea/gitea", map[string]string{"user": "go-gitea", "repo": "gitea"})
 }
 
 func FuzzMarkdownRenderRaw(f *testing.F) {