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Merge pull request #58102 from nextcloud/backport/58100/stable32

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[stable32] chore: Improve SVG handling in link previews
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Julius Knorr 2026-02-05 15:59:04 +01:00 committed by GitHub
commit 0882ca5145
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1 changed files with 7 additions and 1 deletions
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8
lib/public/Collaboration/Reference/LinkReferenceProvider.php
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@ -191,8 +191,14 @@ class LinkReferenceProvider implements IReferenceProvider, IPublicReferenceProvi
if (in_array($contentType, self::ALLOWED_CONTENT_TYPES, true) && $contentLength < self::MAX_CONTENT_LENGTH) {
$stream = Utils::streamFor($response->getBody());
$bodyStream = new LimitStream($stream, self::MAX_CONTENT_LENGTH, 0);
$content = $bodyStream->getContents();
if ($contentType === 'image/svg+xml' && stripos(html_entity_decode($content, ENT_XML1), 'XSL/Transform') !== false) {
return;
}
$reference->setImageContentType($contentType);
$folder->newFile(md5($reference->getId()), $bodyStream->getContents());
$folder->newFile(md5($reference->getId()), $content);
$reference->setImageUrl($this->urlGenerator->linkToRouteAbsolute('core.Reference.preview', ['referenceId' => md5($reference->getId())]));
}
} catch (\Exception $e) {