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handle invalid feeds

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This commit is contained in:
Nazar Kanaev 2020-09-08 22:36:41 +01:00
parent da0626df4e
commit 996bcdc90d
1 changed files with 5 additions and 2 deletions
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7
assets/javascripts/app.js
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@ -22,6 +22,9 @@ var debounce = function(callback, wait) {
} }
var sanitize = function(content, base) { var sanitize = function(content, base) {
// NOTE: `item.link` is not always a valid url
try { new URL(base) } catch(err) { base = null }
var sanitizer = new DOMPurify var sanitizer = new DOMPurify
sanitizer.addHook('afterSanitizeAttributes', function(node) { sanitizer.addHook('afterSanitizeAttributes', function(node) {
// set all elements owning target to target=_blank // set all elements owning target to target=_blank
@ -32,9 +35,9 @@ var sanitize = function(content, base) {
node.setAttribute('xlink:show', 'new') node.setAttribute('xlink:show', 'new')
// set absolute urls // set absolute urls
if (node.attributes.href && node.attributes.href.value) if (base && node.attributes.href && node.attributes.href.value)
node.href = new URL(node.attributes.href.value, base).toString() node.href = new URL(node.attributes.href.value, base).toString()
if (node.attributes.src && node.attributes.src.value) if (base && node.attributes.src && node.attributes.src.value)
node.src = new URL(node.attributes.src.value, base).toString() node.src = new URL(node.attributes.src.value, base).toString()
}) })
return sanitizer.sanitize(content, {FORBID_TAGS: ['style'], FORBID_ATTR: ['style', 'class']}) return sanitizer.sanitize(content, {FORBID_TAGS: ['style'], FORBID_ATTR: ['style', 'class']})