nune/gitea
nune/gitea
0
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

Fix markdown color code detection (#30208)

Browse source 
When reviewing PRs, some color names might be mentioned, the
`transformCodeSpan` (which calls `css.ColorHandler`) considered it as a
valid color, but actually it shouldn't be rendered as a color codespan.
This commit is contained in:
wxiaoguang 2024-03-31 19:17:34 +08:00 • committed by GitHub
parent 6d34ce25b1
commit ab028356c7
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
2 changed files with 26 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

21
modules/markup/markdown/transform_codespan.go
View file

@ -49,9 +49,28 @@ func (r *HTMLRenderer) renderCodeSpan(w util.BufWriter, source []byte, n ast.Nod
return ast.WalkContinue, nil
}
// cssColorHandler checks if a string is a render-able CSS color value.
// The code is from "github.com/microcosm-cc/bluemonday/css.ColorHandler", except that it doesn't handle color words like "red".
func cssColorHandler(value string) bool {
value = strings.ToLower(value)
if css.HexRGB.MatchString(value) {
return true
}
if css.RGB.MatchString(value) {
return true
}
if css.RGBA.MatchString(value) {
return true
}
if css.HSL.MatchString(value) {
return true
}
return css.HSLA.MatchString(value)
}
func (g *ASTTransformer) transformCodeSpan(ctx *markup.RenderContext, v *ast.CodeSpan, reader text.Reader) {
colorContent := v.Text(reader.Source())
if css.ColorHandler(strings.ToLower(string(colorContent))) {
if cssColorHandler(string(colorContent)) {
v.AppendChild(v, NewColorPreview(colorContent))
}
}