mirror of
https://github.com/LadybirdBrowser/ladybird.git
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e0c0668f3d
isomorphic encoding a value that has already been encoded will result in garbage data. `response_headers` is already encoded in ISO-8859-1/latin1, we cannot use `from_string_pair`, as it triggers ISO-8859-1/latin1 encoding. Follow-up of https://github.com/LadybirdBrowser/ladybird/pull/1893
101 lines
3.9 KiB
C++
101 lines
3.9 KiB
C++
/*
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* Copyright (c) 2022-2023, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/ByteBuffer.h>
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#include <AK/Error.h>
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#include <AK/Forward.h>
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#include <AK/HashTable.h>
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#include <AK/Optional.h>
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#include <AK/String.h>
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#include <AK/Vector.h>
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#include <LibGC/Heap.h>
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#include <LibGC/Ptr.h>
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#include <LibJS/Forward.h>
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#include <LibJS/Heap/Cell.h>
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#include <LibWeb/MimeSniff/MimeType.h>
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namespace Web::Fetch::Infrastructure {
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// https://fetch.spec.whatwg.org/#concept-header
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// A header is a tuple that consists of a name (a header name) and value (a header value).
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struct Header {
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ByteBuffer name;
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ByteBuffer value;
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[[nodiscard]] static Header copy(Header const&);
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[[nodiscard]] static Header from_string_pair(StringView, StringView);
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[[nodiscard]] static Header from_latin1_pair(StringView, StringView);
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};
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// https://fetch.spec.whatwg.org/#concept-header-list
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// A header list is a list of zero or more headers. It is initially the empty list.
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class HeaderList final
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: public JS::Cell
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, public Vector<Header> {
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GC_CELL(HeaderList, JS::Cell);
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GC_DECLARE_ALLOCATOR(HeaderList);
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public:
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using Vector::begin;
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using Vector::clear;
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using Vector::end;
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using Vector::is_empty;
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[[nodiscard]] static GC::Ref<HeaderList> create(JS::VM&);
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[[nodiscard]] bool contains(ReadonlyBytes) const;
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[[nodiscard]] Optional<ByteBuffer> get(ReadonlyBytes) const;
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[[nodiscard]] Optional<Vector<String>> get_decode_and_split(ReadonlyBytes) const;
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void append(Header);
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void delete_(ReadonlyBytes name);
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void set(Header);
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void combine(Header);
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[[nodiscard]] Vector<Header> sort_and_combine() const;
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struct ExtractLengthFailure { };
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using ExtractLengthResult = Variant<u64, ExtractLengthFailure, Empty>;
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[[nodiscard]] ExtractLengthResult extract_length() const;
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[[nodiscard]] Optional<MimeSniff::MimeType> extract_mime_type() const;
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[[nodiscard]] Vector<ByteBuffer> unique_names() const;
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};
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struct RangeHeaderValue {
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Optional<u64> start;
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Optional<u64> end;
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};
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struct ExtractHeaderParseFailure {
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};
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[[nodiscard]] StringView legacy_extract_an_encoding(Optional<MimeSniff::MimeType> const& mime_type, StringView fallback_encoding);
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[[nodiscard]] Optional<Vector<String>> get_decode_and_split_header_value(ReadonlyBytes);
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[[nodiscard]] OrderedHashTable<ByteBuffer> convert_header_names_to_a_sorted_lowercase_set(Span<ReadonlyBytes>);
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[[nodiscard]] bool is_header_name(ReadonlyBytes);
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[[nodiscard]] bool is_header_value(ReadonlyBytes);
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[[nodiscard]] ByteBuffer normalize_header_value(ReadonlyBytes);
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[[nodiscard]] bool is_cors_safelisted_request_header(Header const&);
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[[nodiscard]] bool is_cors_unsafe_request_header_byte(u8);
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[[nodiscard]] OrderedHashTable<ByteBuffer> get_cors_unsafe_header_names(HeaderList const&);
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[[nodiscard]] bool is_cors_non_wildcard_request_header_name(ReadonlyBytes);
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[[nodiscard]] bool is_privileged_no_cors_request_header_name(ReadonlyBytes);
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[[nodiscard]] bool is_cors_safelisted_response_header_name(ReadonlyBytes, Span<ReadonlyBytes>);
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[[nodiscard]] bool is_no_cors_safelisted_request_header_name(ReadonlyBytes);
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[[nodiscard]] bool is_no_cors_safelisted_request_header(Header const&);
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[[nodiscard]] bool is_forbidden_request_header(Header const&);
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[[nodiscard]] bool is_forbidden_response_header_name(ReadonlyBytes);
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[[nodiscard]] bool is_request_body_header_name(ReadonlyBytes);
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[[nodiscard]] Optional<Vector<ByteBuffer>> extract_header_values(Header const&);
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[[nodiscard]] Variant<Vector<ByteBuffer>, ExtractHeaderParseFailure, Empty> extract_header_list_values(ReadonlyBytes, HeaderList const&);
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[[nodiscard]] ByteString build_content_range(u64 const& range_start, u64 const& range_end, u64 const& full_length);
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[[nodiscard]] Optional<RangeHeaderValue> parse_single_range_header_value(ReadonlyBytes, bool);
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[[nodiscard]] ByteBuffer default_user_agent_value();
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}
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