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Rework markup link rendering (#26745)

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Fixes #26548

This PR refactors the rendering of markup links. The old code uses
`strings.Replace` to change some urls while the new code uses more
context to decide which link should be generated.

The added tests should ensure the same output for the old and new
behaviour (besides the bug).

We may need to refactor the rendering a bit more to make it clear how
the different helper methods render the input string. There are lots of
options (resolve links / images / mentions / git hashes / emojis / ...)
but you don't really know what helper uses which options. For example,
we currently support images in the user description which should not be
allowed I think:

<details>
  <summary>Profile</summary> 

https://try.gitea.io/KN4CK3R

![grafik](109ae422-496d-4200-b52e-b3a528f553e5)

</details>

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This commit is contained in:
KN4CK3R 2024-01-15 09:49:24 +01:00 • committed by GitHub
parent c7e4629c02
commit 637451a45e
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GPG key ID: 4AEE18F83AFDEB23
42 changed files with 967 additions and 395 deletions
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58
routers/web/repo/view.go
View file

@ -158,7 +158,7 @@ func findReadmeFileInEntries(ctx *context.Context, entries []*git.TreeEntry, try
return "", readmeFile, nil
}
func renderDirectory(ctx *context.Context, treeLink string) {
func renderDirectory(ctx *context.Context) {
entries := renderDirectoryFiles(ctx, 1*time.Second)
if ctx.Written() {
return
@ -175,7 +175,7 @@ func renderDirectory(ctx *context.Context, treeLink string) {
return
}
renderReadmeFile(ctx, subfolder, readmeFile, treeLink)
renderReadmeFile(ctx, subfolder, readmeFile)
}
// localizedExtensions prepends the provided language code with and without a
@ -259,7 +259,7 @@ func getFileReader(ctx gocontext.Context, repoID int64, blob *git.Blob) ([]byte,
return buf, dataRc, &fileInfo{st.IsText(), true, meta.Size, &meta.Pointer, st}, nil
}
func renderReadmeFile(ctx *context.Context, subfolder string, readmeFile *git.TreeEntry, readmeTreelink string) {
func renderReadmeFile(ctx *context.Context, subfolder string, readmeFile *git.TreeEntry) {
target := readmeFile
if readmeFile != nil && readmeFile.IsLink() {
target, _ = readmeFile.FollowLinks()
@ -312,9 +312,13 @@ func renderReadmeFile(ctx *context.Context, subfolder string, readmeFile *git.Tr
ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, &markup.RenderContext{
Ctx: ctx,
RelativePath: 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).
URLPrefix: path.Join(readmeTreelink, subfolder),
Metas: ctx.Repo.Repository.ComposeDocumentMetas(ctx),
GitRepo: ctx.Repo.GitRepo,
Links: markup.Links{
Base: ctx.Repo.RepoLink,
BranchPath: ctx.Repo.BranchNameSubURL(),
TreePath: path.Join(ctx.Repo.TreePath, subfolder),
},
Metas: ctx.Repo.Repository.ComposeDocumentMetas(ctx),
GitRepo: ctx.Repo.GitRepo,
}, rd)
if err != nil {
log.Error("Render failed for %s in %-v: %v Falling back to rendering source", readmeFile.Name(), ctx.Repo.Repository, err)
@ -337,7 +341,7 @@ func renderReadmeFile(ctx *context.Context, subfolder string, readmeFile *git.Tr
}
}
func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink string) {
func renderFile(ctx *context.Context, entry *git.TreeEntry) {
ctx.Data["IsViewFile"] = true
ctx.Data["HideRepoInfo"] = true
blob := entry.Blob()
@ -351,7 +355,7 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
ctx.Data["Title"] = ctx.Tr("repo.file.title", ctx.Repo.Repository.Name+"/"+path.Base(ctx.Repo.TreePath), ctx.Repo.RefName)
ctx.Data["FileIsSymlink"] = entry.IsLink()
ctx.Data["FileName"] = blob.Name()
ctx.Data["RawFileLink"] = rawLink + "/" + util.PathEscapeSegments(ctx.Repo.TreePath)
ctx.Data["RawFileLink"] = ctx.Repo.RepoLink + "/raw/" + ctx.Repo.BranchNameSubURL() + "/" + util.PathEscapeSegments(ctx.Repo.TreePath)
if ctx.Repo.TreePath == ".editorconfig" {
_, editorconfigWarning, editorconfigErr := ctx.Repo.GetEditorconfig(ctx.Repo.Commit)
@ -479,9 +483,13 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
Ctx: ctx,
Type: markupType,
RelativePath: ctx.Repo.TreePath,
URLPrefix: path.Dir(treeLink),
Metas: metas,
GitRepo: ctx.Repo.GitRepo,
Links: markup.Links{
Base: ctx.Repo.RepoLink,
BranchPath: ctx.Repo.BranchNameSubURL(),
TreePath: path.Dir(ctx.Repo.TreePath),
},
Metas: metas,
GitRepo: ctx.Repo.GitRepo,
}, rd)
if err != nil {
ctx.ServerError("Render", err)
@ -585,9 +593,13 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
ctx.Data["EscapeStatus"], ctx.Data["FileContent"], err = markupRender(ctx, &markup.RenderContext{
Ctx: ctx,
RelativePath: ctx.Repo.TreePath,
URLPrefix: path.Dir(treeLink),
Metas: ctx.Repo.Repository.ComposeDocumentMetas(ctx),
GitRepo: ctx.Repo.GitRepo,
Links: markup.Links{
Base: ctx.Repo.RepoLink,
BranchPath: ctx.Repo.BranchNameSubURL(),
TreePath: path.Dir(ctx.Repo.TreePath),
},
Metas: ctx.Repo.Repository.ComposeDocumentMetas(ctx),
GitRepo: ctx.Repo.GitRepo,
}, rd)
if err != nil {
ctx.ServerError("Render", err)
@ -945,14 +957,6 @@ func renderCode(ctx *context.Context) {
}
ctx.Data["Title"] = title
branchLink := ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchNameSubURL()
treeLink := branchLink
rawLink := ctx.Repo.RepoLink + "/raw/" + ctx.Repo.BranchNameSubURL()
if len(ctx.Repo.TreePath) > 0 {
treeLink += "/" + util.PathEscapeSegments(ctx.Repo.TreePath)
}
// Get Topics of this repo
renderRepoTopics(ctx)
if ctx.Written() {
@ -977,9 +981,9 @@ func renderCode(ctx *context.Context) {
}
if entry.IsDir() {
renderDirectory(ctx, treeLink)
renderDirectory(ctx)
} else {
renderFile(ctx, entry, treeLink, rawLink)
renderFile(ctx, entry)
}
if ctx.Written() {
return
@ -1020,6 +1024,12 @@ func renderCode(ctx *context.Context) {
}
ctx.Data["Paths"] = paths
branchLink := ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchNameSubURL()
treeLink := branchLink
if len(ctx.Repo.TreePath) > 0 {
treeLink += "/" + util.PathEscapeSegments(ctx.Repo.TreePath)
}
ctx.Data["TreeLink"] = treeLink
ctx.Data["TreeNames"] = treeNames
ctx.Data["BranchLink"] = branchLink