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LibWeb: Update revokeObjectURL for reported spec bugs

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The spec intends to pass through a URL record object as it needs to
be serialized on removal. This has no functional impact on our
implementation other than the double parsing of every URL being
revoked.

It is also missing an error check for an invalid URL being passed
through. This does not impact our implementation currently as we
just end up using an empty URL which is not part of the blob entry
map. This will cause problems once DOMURL::parse is updated to
return an Optional<URL::URL> however.
This commit is contained in:
Shannon Booth 2025-01-22 17:21:14 +13:00 • committed by Sam Atkins
parent 228750a9d2
commit b81d6945dc
Notes: github-actions[bot] 2025-01-22 12:35:04 +00:00
3 changed files with 9 additions and 4 deletions
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7
Libraries/LibWeb/DOMURL/DOMURL.cpp
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@ -132,6 +132,10 @@ void DOMURL::revoke_object_url(JS::VM&, StringView url)
// 1. Let url record be the result of parsing url.
auto url_record = parse(url);
// Spec Bug: https://github.com/w3c/FileAPI/issues/207, missing check for URL failure parsing.
if (!url_record.is_valid())
return;
// 2. If url record’s scheme is not "blob", return.
if (url_record.scheme() != "blob"sv)
return;
@ -151,7 +155,8 @@ void DOMURL::revoke_object_url(JS::VM&, StringView url)
return;
// 7. Remove an entry from the Blob URL Store for url.
FileAPI::remove_entry_from_blob_url_store(url);
// FIXME: Spec bug: https://github.com/w3c/FileAPI/issues/207, urlRecord should instead be passed through.
FileAPI::remove_entry_from_blob_url_store(url_record);
}
// https://url.spec.whatwg.org/#dom-url-canparse