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Fix rendered wiki page link (#31398)

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Fix #31395
This commit is contained in:
wxiaoguang 2024-06-18 11:09:20 +08:00 committed by GitHub
parent 37a4b233a0
commit 21783a5752
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GPG Key ID: B5690EEEBB952194
10 changed files with 58 additions and 73 deletions
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27
modules/markup/html.go
View File

@ -748,10 +748,10 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
if image {
link = strings.ReplaceAll(link, " ", "+")
} else {
link = strings.ReplaceAll(link, " ", "-")
link = strings.ReplaceAll(link, " ", "-") // FIXME: it should support dashes in the link, eg: "the-dash-support.-"
}
if !strings.Contains(link, "/") {
link = url.PathEscape(link)
link = url.PathEscape(link) // FIXME: it doesn't seem right and it might cause double-escaping
}
}
if image {
@ -783,28 +783,7 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
childNode.Attr = childNode.Attr[:2]
}
} else {
if !absoluteLink {
var base string
if ctx.IsWiki {
switch ext {
case "":
// no file extension, create a regular wiki link
base = ctx.Links.WikiLink()
default:
// we have a file extension:
// return a regular wiki link if it's a renderable file (extension),
// raw link otherwise
if Type(link) != "" {
base = ctx.Links.WikiLink()
} else {
base = ctx.Links.WikiRawLink()
}
}
} else {
base = ctx.Links.SrcLink()
}
link = util.URLJoin(base, link)
}
link, _ = ResolveLink(ctx, link, "")
childNode.Type = html.TextNode
childNode.Data = name
}

35
modules/markup/html_link.go Normal file
View File

@ -0,0 +1,35 @@
// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package markup
import (
"path"
"code.gitea.io/gitea/modules/util"
)
func ResolveLink(ctx *RenderContext, link, userContentAnchorPrefix string) (result string, resolved bool) {
isAnchorFragment := link != "" && link[0] == '#'
if !isAnchorFragment && !IsFullURLString(link) {
linkBase := ctx.Links.Base
if ctx.IsWiki {
if ext := path.Ext(link); ext == "" || ext == ".-" {
linkBase = ctx.Links.WikiLink() // the link is for a wiki page
} else if DetectMarkupTypeByFileName(link) != "" {
linkBase = ctx.Links.WikiLink() // the link is renderable as a wiki page
} else {
linkBase = ctx.Links.WikiRawLink() // otherwise, use a raw link instead to view&download medias
}
} else if ctx.Links.BranchPath != "" || ctx.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.Links.SrcLink()
}
link, resolved = util.URLJoin(linkBase, link), true
}
if isAnchorFragment && userContentAnchorPrefix != "" {
link, resolved = userContentAnchorPrefix+link[1:], true
}
return link, resolved
}

4
modules/markup/html_test.go
View File

@ -444,6 +444,10 @@ func TestRender_ShortLinks(t *testing.T) {
"[[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>`,

10
modules/markup/markdown/markdown_test.go
View File

@ -635,7 +635,7 @@ mail@domain.com
<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
<a href="/file.bin" rel="nofollow">local link</a><br/>
<a href="https://example.com" rel="nofollow">remote link</a><br/>
<a href="/src/file.bin" rel="nofollow">local link</a><br/>
<a href="/file.bin" rel="nofollow">local link</a><br/>
<a href="https://example.com" rel="nofollow">remote link</a><br/>
<a href="/image.jpg" target="_blank" rel="nofollow noopener"><img src="/image.jpg" alt="local image"/></a><br/>
<a href="/path/file" target="_blank" rel="nofollow noopener"><img src="/path/file" alt="local image"/></a><br/>
@ -691,7 +691,7 @@ space</p>
<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/src/file.bin" rel="nofollow">local 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/>
@ -749,7 +749,7 @@ space</p>
<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/src/file.bin" rel="nofollow">local 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/>
@ -866,7 +866,7 @@ space</p>
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/file.bin" rel="nofollow">local 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/src/sub/folder/file.bin" rel="nofollow">local link</a><br/>
<a href="https://example.com" rel="nofollow">remote link</a><br/>
@ -984,7 +984,7 @@ space</p>
for i, c := range cases {
result, err := markdown.RenderString(&markup.RenderContext{Ctx: context.Background(), Links: c.Links, IsWiki: c.IsWiki}, input)
assert.NoError(t, err, "Unexpected error in testcase: %v", i)
assert.Equal(t, template.HTML(c.Expected), result, "Unexpected result in testcase %v", i)
assert.Equal(t, c.Expected, string(result), "Unexpected result in testcase %v", i)
}
}

29
modules/markup/markdown/transform_link.go
View File

@ -4,38 +4,13 @@
package markdown
import (
"path/filepath"
"code.gitea.io/gitea/modules/markup"
giteautil "code.gitea.io/gitea/modules/util"
"github.com/yuin/goldmark/ast"
)
func (g *ASTTransformer) transformLink(ctx *markup.RenderContext, v *ast.Link) {
// Links need their href to munged to be a real value
link := v.Destination
isAnchorFragment := len(link) > 0 && link[0] == '#'
if !isAnchorFragment && !markup.IsFullURLBytes(link) {
base := ctx.Links.Base
if ctx.IsWiki {
if filepath.Ext(string(link)) == "" {
// This link doesn't have a file extension - assume a regular wiki link
base = ctx.Links.WikiLink()
} else if markup.Type(string(link)) != "" {
// If it's a file type we can render, use a regular wiki link
base = ctx.Links.WikiLink()
} else {
// Otherwise, use a raw link instead
base = ctx.Links.WikiRawLink()
}
} else if ctx.Links.HasBranchInfo() {
base = ctx.Links.SrcLink()
}
link = []byte(giteautil.URLJoin(base, string(link)))
if link, resolved := markup.ResolveLink(ctx, string(v.Destination), "#user-content-"); resolved {
v.Destination = []byte(link)
}
if isAnchorFragment {
link = []byte("#user-content-" + string(link)[1:])
}
v.Destination = link
}

12
modules/markup/renderer.go
View File

@ -372,22 +372,14 @@ func renderFile(ctx *RenderContext, input io.Reader, output io.Writer) error {
return ErrUnsupportedRenderExtension{extension}
}
// Type returns if markup format via the filename
func Type(filename string) string {
// DetectMarkupTypeByFileName returns the possible markup format type via the filename
func DetectMarkupTypeByFileName(filename string) string {
if parser := GetRendererByFileName(filename); parser != nil {
return parser.Name()
}
return ""
}
// IsMarkupFile reports whether file is a markup type file
func IsMarkupFile(name, markup string) bool {
if parser := GetRendererByFileName(name); parser != nil {
return parser.Name() == markup
}
return false
}
func PreviewableExtensions() []string {
extensions := make([]string, 0, len(extRenderers))
for extension := range extRenderers {

4
modules/templates/util_render_test.go
View File

@ -174,7 +174,7 @@ func TestRenderMarkdownToHtml(t *testing.T) {
<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a>
<a href="/file.bin" rel="nofollow">local link</a>
<a href="https://example.com" rel="nofollow">remote link</a>
<a href="/src/file.bin" rel="nofollow">local link</a>
<a href="/file.bin" rel="nofollow">local link</a>
<a href="https://example.com" rel="nofollow">remote link</a>
<a href="/image.jpg" target="_blank" rel="nofollow noopener"><img src="/image.jpg" alt="local image"/></a>
<a href="https://example.com/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://example.com/image.jpg" alt="remote image"/></a>
@ -190,7 +190,7 @@ com 88fc37a3c0a4dda553bdcfc80c178a58247f42fb mit
#123
space</p>
`
assert.EqualValues(t, expected, RenderMarkdownToHtml(context.Background(), testInput()))
assert.Equal(t, expected, string(RenderMarkdownToHtml(context.Background(), testInput())))
}
func TestRenderLabels(t *testing.T) {

2
routers/web/repo/render.go
View File

@ -47,7 +47,7 @@ func RenderFile(ctx *context.Context) {
rd := charset.ToUTF8WithFallbackReader(io.MultiReader(bytes.NewReader(buf), dataRc), charset.ConvertOpts{})
ctx.Resp.Header().Add("Content-Security-Policy", "frame-src 'self'; sandbox allow-scripts")
if markupType := markup.Type(blob.Name()); markupType == "" {
if markupType := markup.DetectMarkupTypeByFileName(blob.Name()); markupType == "" {
if isTextFile {
_, _ = io.Copy(ctx.Resp, rd)
} else {

6
routers/web/repo/view.go
View File

@ -307,7 +307,7 @@ func renderReadmeFile(ctx *context.Context, subfolder string, readmeFile *git.Tr
rd := charset.ToUTF8WithFallbackReader(io.MultiReader(bytes.NewReader(buf), dataRc), charset.ConvertOpts{})
if markupType := markup.Type(readmeFile.Name()); markupType != "" {
if markupType := markup.DetectMarkupTypeByFileName(readmeFile.Name()); markupType != "" {
ctx.Data["IsMarkup"] = true
ctx.Data["MarkupType"] = markupType
@ -499,7 +499,7 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry) {
readmeExist := util.IsReadmeFileName(blob.Name())
ctx.Data["ReadmeExist"] = readmeExist
markupType := markup.Type(blob.Name())
markupType := markup.DetectMarkupTypeByFileName(blob.Name())
// If the markup is detected by custom markup renderer it should not be reset later on
// to not pass it down to the render context.
detected := false
@ -607,7 +607,7 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry) {
// TODO: this logic duplicates with "isRepresentableAsText=true", it is not the same as "LFSFileGet" in "lfs.go"
// It is used by "external renders", markupRender will execute external programs to get rendered content.
if markupType := markup.Type(blob.Name()); markupType != "" {
if markupType := markup.DetectMarkupTypeByFileName(blob.Name()); markupType != "" {
rd := io.MultiReader(bytes.NewReader(buf), dataRc)
ctx.Data["IsMarkup"] = true
ctx.Data["MarkupType"] = markupType

2
routers/web/repo/wiki.go
View File

@ -532,7 +532,7 @@ func Wiki(ctx *context.Context) {
}
wikiPath := entry.Name()
if markup.Type(wikiPath) != markdown.MarkupName {
if markup.DetectMarkupTypeByFileName(wikiPath) != markdown.MarkupName {
ext := strings.ToUpper(filepath.Ext(wikiPath))
ctx.Data["FormatWarning"] = fmt.Sprintf("%s rendering is not supported at the moment. Rendered as Markdown.", ext)
}