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c82f4b46a2
To prepare for introducing a CSS::URL type, we need to qualify any use of LibURL as `::URL::foo` instead of `URL::foo` so the compiler doesn't get confused. Many of these uses will be replaced, but I don't want to mix this in with what will likely already be a large change.
62 lines
3.1 KiB
C++
62 lines
3.1 KiB
C++
/*
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* Copyright (c) 2024, Sam Atkins <sam@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibURL/Parser.h>
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#include <LibWeb/CSS/CSSStyleSheet.h>
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#include <LibWeb/CSS/Fetch.h>
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#include <LibWeb/Fetch/Fetching/Fetching.h>
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namespace Web::CSS {
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// https://drafts.csswg.org/css-values-4/#fetch-a-style-resource
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void fetch_a_style_resource(String const& url_value, CSSStyleSheet const& sheet, Fetch::Infrastructure::Request::Destination destination, CorsMode cors_mode, Fetch::Infrastructure::FetchAlgorithms::ProcessResponseConsumeBodyFunction process_response)
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{
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auto& vm = sheet.vm();
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// 1. Let environmentSettings be sheet’s relevant settings object.
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auto& environment_settings = HTML::relevant_settings_object(sheet);
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// 2. Let base be sheet’s stylesheet base URL if it is not null, otherwise environmentSettings’s API base URL. [CSSOM]
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auto base = sheet.base_url().value_or(environment_settings.api_base_url());
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// 3. Let parsedUrl be the result of the URL parser steps with urlValue’s url and base. If the algorithm returns an error, return.
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auto parsed_url = ::URL::Parser::basic_parse(url_value, base);
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if (!parsed_url.has_value())
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return;
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// 4. Let req be a new request whose url is parsedUrl, whose destination is destination, mode is corsMode,
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// origin is environmentSettings’s origin, credentials mode is "same-origin", use-url-credentials flag is set,
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// client is environmentSettings, and whose referrer is environmentSettings’s API base URL.
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auto request = Fetch::Infrastructure::Request::create(vm);
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request->set_url(parsed_url.release_value());
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request->set_destination(destination);
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request->set_mode(cors_mode == CorsMode::Cors ? Fetch::Infrastructure::Request::Mode::CORS : Fetch::Infrastructure::Request::Mode::NoCORS);
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request->set_origin(environment_settings.origin());
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request->set_credentials_mode(Fetch::Infrastructure::Request::CredentialsMode::SameOrigin);
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request->set_use_url_credentials(true);
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request->set_client(&environment_settings);
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request->set_referrer(environment_settings.api_base_url());
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// 5. Apply any URL request modifier steps that apply to this request.
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// FIXME: No specs seem to define these yet. When they do, implement them.
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// 6. If req’s mode is "cors", set req’s referrer to sheet’s location. [CSSOM]
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if (request->mode() == Fetch::Infrastructure::Request::Mode::CORS) {
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// FIXME: sheet's location is an optional string, what do we do here?
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}
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// 7. If sheet’s origin-clean flag is set, set req’s initiator type to "css". [CSSOM]
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if (sheet.is_origin_clean())
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request->set_initiator_type(Fetch::Infrastructure::Request::InitiatorType::CSS);
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// 8. Fetch req, with processresponseconsumebody set to processResponse.
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Fetch::Infrastructure::FetchAlgorithms::Input fetch_algorithms_input {};
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fetch_algorithms_input.process_response_consume_body = move(process_response);
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(void)Fetch::Fetching::fetch(environment_settings.realm(), request, Fetch::Infrastructure::FetchAlgorithms::create(vm, move(fetch_algorithms_input)));
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}
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}
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