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LibWeb/Fetch: Add missing fetch step for preloaded resources

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This is currently no-op and a FIXME exists to implement the "consume a
preloaded resource" AO.
This commit is contained in:
Jamie Mansfield 2024-07-12 19:35:06 +01:00 • committed by Andreas Kling
parent 9eb568eacb
commit aee77b975c
Notes: sideshowbarker 2024-07-16 20:21:48 +09:00
1 changed files with 33 additions and 0 deletions
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33
Userland/Libraries/LibWeb/Fetch/Fetching/Fetching.cpp
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@ -138,6 +138,39 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<Infrastructure::FetchController>> fetch(JS:
if (origin && *origin == Infrastructure::Request::Origin::Client)
request.set_origin(request.client()->origin());
// 11. If all of the following conditions are true:
if (
// - request’s URL’s scheme is an HTTP(S) scheme
Infrastructure::is_http_or_https_scheme(request.url().scheme())
// - request’s mode is "same-origin", "cors", or "no-cors"
&& (request.mode() == Infrastructure::Request::Mode::SameOrigin || request.mode() == Infrastructure::Request::Mode::CORS || request.mode() == Infrastructure::Request::Mode::NoCORS)
// - request’s window is an environment settings object
&& request.window().has<JS::GCPtr<HTML::EnvironmentSettingsObject>>()
// - request’s method is `GET`
&& StringView { request.method() }.equals_ignoring_ascii_case("GET"sv)
// - request’s unsafe-request flag is not set or request’s header list is empty
&& (!request.unsafe_request() || request.header_list()->is_empty())) {
// 1. Assert: request’s origin is same origin with request’s client’s origin.
VERIFY(request.origin().has<HTML::Origin>() && request.origin().get<HTML::Origin>().is_same_origin(request.client()->origin()));
// 2. Let onPreloadedResponseAvailable be an algorithm that runs the following step given a response
// response: set fetchParams’s preloaded response candidate to response.
auto on_preloaded_response_available = JS::create_heap_function(realm.heap(), [fetch_params](JS::NonnullGCPtr<Infrastructure::Response> response) {
fetch_params->set_preloaded_response_candidate(response);
});
// FIXME: 3. Let foundPreloadedResource be the result of invoking consume a preloaded resource for request’s
// window, given request’s URL, request’s destination, request’s mode, request’s credentials mode,
// request’s integrity metadata, and onPreloadedResponseAvailable.
auto found_preloaded_resource = false;
(void)on_preloaded_response_available;
// 4. If foundPreloadedResource is true and fetchParams’s preloaded response candidate is null, then set
// fetchParams’s preloaded response candidate to "pending".
if (found_preloaded_resource && fetch_params->preloaded_response_candidate().has<Empty>())
fetch_params->set_preloaded_response_candidate(Infrastructure::FetchParams::PreloadedResponseCandidatePendingTag {});
}
// 12. If request’s policy container is "client", then:
auto const* policy_container = request.policy_container().get_pointer<Infrastructure::Request::PolicyContainer>();
if (policy_container) {