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Merge branch 'oembed' into oembed-built

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This commit is contained in:
Kagami Sascha Rosylight 2023-03-11 15:09:10 +01:00
commit 51148cea27
3 changed files with 12 additions and 4 deletions
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12
src/general.ts
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@ -71,8 +71,16 @@ async function getOEmbedRich($: cheerio.CheerioAPI, pageUrl: string): Promise<OE
return null;
}
const allowedFeatures = (iframe.attr('allow') ?? '').split(/\s+/g);
const safeList = ['', 'fullscreen', 'encrypted-media', 'picture-in-picture'];
// TODO: This implementation only allows basic syntax of `allow`.
// Might need to implement better later.
const allowedFeatures = (iframe.attr('allow') ?? '').split(/\s*;\s*/g).filter(s => s);
const safeList = [
'autoplay',
'clipboard-write',
'fullscreen',
'encrypted-media',
'picture-in-picture'
];
if (allowedFeatures.some(allow => !safeList.includes(allow))) {
// This iframe is probably too powerful to be embedded
return null;

2
test/oembed/invalid/oembed-too-powerful2.json
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@ -1,6 +1,6 @@
{
"version": "1.0",
"type": "rich",
"html": "<iframe src='https://example.com/' allow='fullscreen camera'></iframe>",
"html": "<iframe src='https://example.com/' allow='fullscreen;camera'></iframe>",
"height": 300
}

2
test/oembed/oembed-allow-safelisted-features.json
View File

@ -1,6 +1,6 @@
{
"version": "1.0",
"type": "rich",
"html": "<iframe src='https://example.com/' allow='fullscreen encrypted-media picture-in-picture'></iframe>",
"html": "<iframe src='https://example.com/' allow='autoplay;clipboard-write;fullscreen;encrypted-media;picture-in-picture'></iframe>",
"height": 300
}