2726fc9c73
The Fetch spec unfortunately will cause a name clash between the Request concept and the Request JS object - both cannot live in the Web::Fetch namespace, and WrapperGenerator generally assumes `Web::<Name>` for things living in the `<Name>/` subdirectory, so let's instead move infra code into its own namespace - it already sits in a (sub-)subdirectory anyway.
48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
/*
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* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2022, Kenneth Myhra <kennethmyhra@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/ByteBuffer.h>
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#include <AK/StringView.h>
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#include <LibRegex/Regex.h>
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#include <LibWeb/Fetch/Infrastructure/HTTP/Methods.h>
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#include <LibWeb/Infra/ByteSequences.h>
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namespace Web::Fetch::Infrastructure {
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// https://fetch.spec.whatwg.org/#concept-method
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bool is_method(ReadonlyBytes method)
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{
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// A method is a byte sequence that matches the method token production.
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Regex<ECMA262Parser> regex { R"~~~(^[A-Za-z0-9!#$%&'*+\-.^_`|~]+$)~~~" };
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return regex.has_match(StringView { method });
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}
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// https://fetch.spec.whatwg.org/#cors-safelisted-method
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bool is_cors_safelisted_method(ReadonlyBytes method)
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{
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// A CORS-safelisted method is a method that is `GET`, `HEAD`, or `POST`.
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return StringView { method }.is_one_of("GET"sv, "HEAD"sv, "POST"sv);
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}
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// https://fetch.spec.whatwg.org/#forbidden-method
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bool is_forbidden_method(ReadonlyBytes method)
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{
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// A forbidden method is a method that is a byte-case-insensitive match for `CONNECT`, `TRACE`, or `TRACK`.
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return StringView { method }.is_one_of_ignoring_case("CONNECT"sv, "TRACE"sv, "TRACK"sv);
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}
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// https://fetch.spec.whatwg.org/#concept-method-normalize
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ErrorOr<ByteBuffer> normalize_method(ReadonlyBytes method)
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{
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// To normalize a method, if it is a byte-case-insensitive match for `DELETE`, `GET`, `HEAD`, `OPTIONS`, `POST`, or `PUT`, byte-uppercase it.
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auto bytes = TRY(ByteBuffer::copy(method));
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if (StringView { method }.is_one_of_ignoring_case("DELETE"sv, "GET"sv, "HEAD"sv, "OPTIONS"sv, "POST"sv, "PUT"sv))
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Infra::byte_uppercase(bytes);
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return bytes;
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}
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}
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