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LibWeb/MimeSniff: Add sniffing in a browsing context

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This commit is contained in:
Kemal Zebari 2023-11-30 12:44:27 -08:00 • committed by Andrew Kaster
parent f6d3ea33fa
commit ea15501f37
3 changed files with 29 additions and 2 deletions
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16
Userland/Libraries/LibWeb/MimeSniff/Resource.cpp
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@ -370,7 +370,7 @@ ErrorOr<Resource> Resource::create(ReadonlyBytes data, SniffingConfiguration con
auto resource = Resource { data, configuration.no_sniff, move(default_computed_mime_type) };
TRY(resource.supplied_mime_type_detection_algorithm(configuration.scheme, move(configuration.supplied_type)));
TRY(resource.mime_type_sniffing_algorithm());
TRY(resource.context_specific_sniffing_algorithm(configuration.sniffing_context));
return resource;
}
@ -520,4 +520,18 @@ ErrorOr<void> Resource::mime_type_sniffing_algorithm()
return {};
}
// https://mimesniff.spec.whatwg.org/#context-specific-sniffing-algorithm
ErrorOr<void> Resource::context_specific_sniffing_algorithm(SniffingContext sniffing_context)
{
// A context-specific sniffing algorithm determines the computed MIME type of a resource only if
// the resource is a MIME type relevant to a particular context.
if (sniffing_context == SniffingContext::None || sniffing_context == SniffingContext::Browsing) {
// https://mimesniff.spec.whatwg.org/#sniffing-in-a-browsing-context
// Use the MIME type sniffing algorithm.
return mime_type_sniffing_algorithm();
}
return {};
}
}