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LibWeb: Implement 'create a potential-CORS request' algorithm

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Srikavin Ramkumar 2023-01-14 19:00:42 +05:30 • committed by Linus Groh
parent 3e2e94bd01
commit f7176463b5
6 changed files with 122 additions and 0 deletions
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44
Userland/Libraries/LibWeb/HTML/PotentialCORSRequest.cpp Normal file
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/*
* Copyright (c) 2023, Srikavin Ramkumar <me@srikavin.me>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/HTML/CORSSettingAttribute.h>
#include <LibWeb/HTML/PotentialCORSRequest.h>
namespace Web::HTML {
// https://html.spec.whatwg.org/multipage/urls-and-fetching.html#create-a-potential-cors-request
JS::NonnullGCPtr<Fetch::Infrastructure::Request>
create_potential_CORS_request(JS::VM& vm, AK::URL const& url, Optional<Fetch::Infrastructure::Request::Destination> destination, CORSSettingAttribute cors_attribute_state, SameOriginFallbackFlag same_origin_fallback_flag)
{
// 1. Let mode be "no-cors" if corsAttributeState is No CORS, and "cors" otherwise.
auto mode = cors_attribute_state == CORSSettingAttribute::NoCORS
? Fetch::Infrastructure::Request::Mode::NoCORS
: Fetch::Infrastructure::Request::Mode::CORS;
// 2. If same-origin fallback flag is set and mode is "no-cors", set mode to "same-origin".
if (same_origin_fallback_flag == SameOriginFallbackFlag::Yes && mode == Fetch::Infrastructure::Request::Mode::NoCORS)
mode = Fetch::Infrastructure::Request::Mode::SameOrigin;
// 3. Let credentialsMode be "include".
auto credentials_mode = Fetch::Infrastructure::Request::CredentialsMode::Include;
// 4. If corsAttributeState is Anonymous, set credentialsMode to "same-origin".
if (cors_attribute_state == CORSSettingAttribute::Anonymous)
credentials_mode = Fetch::Infrastructure::Request::CredentialsMode::SameOrigin;
// 5. Let request be a new request whose URL is url, destination is destination, mode is mode, credentials mode is credentialsMode,
// and whose use-URL-credentials flag is set.
auto request = Fetch::Infrastructure::Request::create(vm);
request->set_url(url);
request->set_destination(destination);
request->set_mode(mode);
request->set_credentials_mode(credentials_mode);
request->set_use_url_credentials(true);
return request;
}
}