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Merge branch 'harden-parser' into 'develop'

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fix regex misinterpreting tag name in badly formed HTML

See merge request pleroma/pleroma-fe!1835

(cherry picked from commit 624af7ed00)

00b47e16 fix regex misinterpreting tag name in badly formed HTML, prevent rich
5e656cc0 Merge remote-tracking branch 'origin/develop' into harden-parser
10e28f6c changelog
0109724a case insensititvy
This commit is contained in:
HJ 2023-06-05 19:04:30 +00:00
parent 3a507ba9b2
commit 4bc7873e03
3 changed files with 5 additions and 2 deletions
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1
changelog.d/parser.fix Normal file
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@ -0,0 +1 @@
fix regex issue in HTML parser/renderer

4
src/components/rich_content/rich_content.jsx
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@ -149,7 +149,9 @@ export default {
// Handle tag nodes
if (Array.isArray(item)) {
const [opener, children, closer] = item
const Tag = getTagName(opener)
let Tag = getTagName(opener)
if (Tag.toLowerCase() === 'script') Tag = 'js-exploit'
if (Tag.toLowerCase() === 'style') Tag = 'css-exploit'
const fullAttrs = getAttrs(opener, () => true)
const attrs = getAttrs(opener)
const previouslyMentions = currentMentions !== null

2
src/services/html_converter/utility.service.js
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@ -5,7 +5,7 @@
* @return {String} - tagname, i.e. "div"
*/
export const getTagName = (tag) => {
const result = /(?:<\/(\w+)>|<(\w+)\s?.*?\/?>)/gi.exec(tag)
const result = /(?:<\/(\w+)>|<(\w+)\s?.*?\/?>)/gis.exec(tag)
return result && (result[1] || result[2])
}