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Fixed emoji alias not parsed in links (#16221)

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* Do not skip links.

* Restrict text in links to emojis.

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: zeripath <art27@cantab.net>
This commit is contained in:
KN4CK3R
2021-12-16 00:49:12 +01:00
committed by GitHub
parent f58e687a83
commit b748acf2a0
2 changed files with 17 additions and 10 deletions
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17
modules/markup/html.go
View File

@@ -322,7 +322,7 @@ func postProcess(ctx *RenderContext, procs []processor, input io.Reader, output
node = node.FirstChild node = node.FirstChild
} }
visitNode(ctx, procs, node, true) visitNode(ctx, procs, procs, node)
newNodes := make([]*html.Node, 0, 5) newNodes := make([]*html.Node, 0, 5)
@@ -354,7 +354,7 @@ func postProcess(ctx *RenderContext, procs []processor, input io.Reader, output
return nil return nil
} }
func visitNode(ctx *RenderContext, procs []processor, node *html.Node, visitText bool) { func visitNode(ctx *RenderContext, procs, textProcs []processor, node *html.Node) {
// Add user-content- to IDs if they don't already have them // Add user-content- to IDs if they don't already have them
for idx, attr := range node.Attr { for idx, attr := range node.Attr {
if attr.Key == "id" && !(strings.HasPrefix(attr.Val, "user-content-") || blackfridayExtRegex.MatchString(attr.Val)) { if attr.Key == "id" && !(strings.HasPrefix(attr.Val, "user-content-") || blackfridayExtRegex.MatchString(attr.Val)) {
@@ -362,16 +362,14 @@ func visitNode(ctx *RenderContext, procs []processor, node *html.Node, visitText
} }
if attr.Key == "class" && attr.Val == "emoji" { if attr.Key == "class" && attr.Val == "emoji" {
visitText = false textProcs = nil
} }
} }
// We ignore code, pre and already generated links. // We ignore code and pre.
switch node.Type { switch node.Type {
case html.TextNode: case html.TextNode:
if visitText { textNode(ctx, textProcs, node)
textNode(ctx, procs, node)
}
case html.ElementNode: case html.ElementNode:
if node.Data == "img" { if node.Data == "img" {
for i, attr := range node.Attr { for i, attr := range node.Attr {
@@ -390,7 +388,8 @@ func visitNode(ctx *RenderContext, procs []processor, node *html.Node, visitText
node.Attr[i] = attr node.Attr[i] = attr
} }
} else if node.Data == "a" { } else if node.Data == "a" {
visitText = false // Restrict text in links to emojis
textProcs = emojiProcessors
} else if node.Data == "code" || node.Data == "pre" { } else if node.Data == "code" || node.Data == "pre" {
return return
} else if node.Data == "i" { } else if node.Data == "i" {
@@ -416,7 +415,7 @@ func visitNode(ctx *RenderContext, procs []processor, node *html.Node, visitText
} }
} }
for n := node.FirstChild; n != nil; n = n.NextSibling { for n := node.FirstChild; n != nil; n = n.NextSibling {
visitNode(ctx, procs, n, visitText) visitNode(ctx, procs, textProcs, n)
} }
} }
// ignore everything else // ignore everything else

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

@@ -391,5 +391,13 @@ func TestRenderSiblingImages_Issue12925(t *testing.T) {
res, err := RenderRawString(&markup.RenderContext{}, testcase) res, err := RenderRawString(&markup.RenderContext{}, testcase)
assert.NoError(t, err) assert.NoError(t, err)
assert.Equal(t, expected, res) assert.Equal(t, expected, res)
}
func TestRenderEmojiInLinks_Issue12331(t *testing.T) {
testcase := `[Link with emoji :moon: in text](https://gitea.io)`
expected := `<p><a href="https://gitea.io" rel="nofollow">Link with emoji <span class="emoji" aria-label="waxing gibbous moon">🌔</span> in text</a></p>
`
res, err := RenderString(&markup.RenderContext{}, testcase)
assert.NoError(t, err)
assert.Equal(t, expected, res)
} }