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merge: Extract inline media from remote posts (resolves #1074, #1104, and #1105) (!1113)

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View MR for information: https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/1113

Closes #1074, #1104, and #1105

Approved-by: dakkar <dakkar@thenautilus.net>
Approved-by: Marie <github@yuugi.dev>
This commit is contained in:
Hazelnoot 2025-06-19 23:36:44 +00:00
commit 8926ba06a6
16 changed files with 960 additions and 181 deletions
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32
packages/backend/src/core/MfmService.ts
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@ -335,6 +335,38 @@ export class MfmService {
break;
}
// Replace iframe with link so we can generate previews.
// We shouldn't normally see this, but federated blogging platforms (WordPress, MicroBlog.Pub) can send it.
case 'iframe': {
const txt: string | undefined = node.attribs.title || node.attribs.alt;
const href: string | undefined = node.attribs.src;
if (href) {
if (href.match(/[\s>]/)) {
if (txt) {
// href is invalid + has a label => render a pseudo-link
text += `${text} (${href})`;
} else {
// href is invalid + no label => render plain text
text += href;
}
} else {
if (txt) {
// href is valid + has a label => render a link
const label = txt
.replaceAll('[', '(')
.replaceAll(']', ')')
.replaceAll(/\r?\n/, ' ')
.replaceAll('`', '\'');
text += `[${label}](<${href}>)`;
} else {
// href is valid + no label => render a plain URL
text += `<${href}>`;
}
}
}
break;
}
default: // includes inline elements
{
appendChildren(node.childNodes);