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Extend external media checks

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This commit is contained in:
Cohee
2024-01-24 19:14:40 +02:00
parent 9f81ea3c1f
commit 4985afd816
2 changed files with 37 additions and 6 deletions
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39
public/script.js
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@@ -301,17 +301,48 @@ DOMPurify.addHook('uponSanitizeElement', (node, _, config) => {
return;
}
if (!power_user.forbid_external_images) {
return;
}
switch (node.tagName) {
case 'AUDIO':
case 'VIDEO':
case 'SOURCE':
case 'TRACK':
case 'EMBED':
case 'OBJECT':
case 'IMG': {
const isExternalUrl = (url) => (url.indexOf('://') > 0 || url.indexOf('//') === 0) && !url.startsWith(window.location.origin);
const src = node.getAttribute('src');
const data = node.getAttribute('data');
const srcset = node.getAttribute('srcset');
if (power_user.forbid_external_images && isExternalUrl(src)) {
console.warn('External image blocked', src);
if (srcset) {
const srcsetUrls = srcset.split(',');
for (const srcsetUrl of srcsetUrls) {
const [url] = srcsetUrl.trim().split(' ');
if (isExternalUrl(url)) {
console.warn('External media blocked', url);
node.remove();
break;
}
}
}
if (src && isExternalUrl(src)) {
console.warn('External media blocked', src);
node.remove();
}
if (data && isExternalUrl(data)) {
console.warn('External media blocked', data);
node.remove();
}
}
break;
break;
}
});
@@ -1586,7 +1617,7 @@ function messageFormatting(mes, ch_name, isSystem, isUser) {
} else if (!isSystem) {
// Save double quotes in tags as a special character to prevent them from being encoded
if (!power_user.encode_tags) {
mes = mes.replace(/<([^>]+)>/g, function(_, contents){
mes = mes.replace(/<([^>]+)>/g, function (_, contents) {
return '<' + contents.replace(/"/g, '\ufffe') + '>';
});
}