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34d954e2d7
Add `ECMAScriptRegex`, LibRegex's C++ facade for ECMAScript regexes. The facade owns compilation, execution, captures, named groups, and error translation for the Rust backend, which lets callers stop depending on the legacy parser and matcher types directly. Use it in the remaining non-LibJS callers: URLPattern, HTML input pattern handling, and the places in LibHTTP that only needed token validation. Where a full regex engine was unnecessary, replace those call sites with direct character checks. Also update focused LibURL, LibHTTP, and WPT coverage for the migrated callers and corrected surrogate handling.
50 lines
1.6 KiB
C++
50 lines
1.6 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/AllOf.h>
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#include <LibHTTP/HTTP.h>
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#include <LibHTTP/Method.h>
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namespace HTTP {
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// https://fetch.spec.whatwg.org/#concept-method
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bool is_method(StringView 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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return !method.is_empty() && all_of(method, is_http_token_code_point);
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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(StringView 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 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(StringView 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 method.is_one_of_ignoring_ascii_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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ByteString normalize_method(StringView 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`,
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// or `PUT`, byte-uppercase it.
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static auto NORMALIZED_METHODS = to_array<ByteString>({ "DELETE"sv, "GET"sv, "HEAD"sv, "OPTIONS"sv, "POST"sv, "PUT"sv });
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for (auto const& normalized_method : NORMALIZED_METHODS) {
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if (normalized_method.equals_ignoring_ascii_case(method))
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return normalized_method;
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}
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return method;
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}
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}
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