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21bbbacd07
We currently have two ongoing implementations of RFC 9111, HTTP caching. In order to consolidate these, this patch moves the implementation from RequestServer to LibHTTP for re-use within LibWeb.
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
/*
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* Copyright (c) 2025, Tim Flynn <trflynn89@ladybird.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/LexicalPath.h>
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#include <AK/StringView.h>
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#include <AK/Time.h>
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#include <AK/Types.h>
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#include <LibHTTP/Forward.h>
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#include <LibHTTP/HeaderList.h>
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#include <LibURL/Forward.h>
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namespace HTTP {
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constexpr inline auto TEST_CACHE_ENABLED_HEADER = "X-Ladybird-Enable-Disk-Cache"sv;
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constexpr inline auto TEST_CACHE_STATUS_HEADER = "X-Ladybird-Disk-Cache-Status"sv;
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constexpr inline auto TEST_CACHE_REQUEST_TIME_OFFSET = "X-Ladybird-Request-Time-Offset"sv;
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String serialize_url_for_cache_storage(URL::URL const&);
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u64 create_cache_key(StringView url, StringView method);
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LexicalPath path_for_cache_key(LexicalPath const& cache_directory, u64 cache_key);
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bool is_cacheable(StringView method);
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bool is_cacheable(u32 status_code, HeaderList const&);
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bool is_header_exempted_from_storage(StringView name);
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AK::Duration calculate_freshness_lifetime(u32 status_code, HeaderList const&, AK::Duration current_time_offset_for_testing);
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AK::Duration calculate_age(HeaderList const&, UnixDateTime request_time, UnixDateTime response_time, AK::Duration current_time_offset_for_testing);
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enum class CacheLifetimeStatus {
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Fresh,
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Expired,
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MustRevalidate,
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};
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CacheLifetimeStatus cache_lifetime_status(HeaderList const&, AK::Duration freshness_lifetime, AK::Duration current_age);
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struct RevalidationAttributes {
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static RevalidationAttributes create(HeaderList const&);
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Optional<ByteString> etag;
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Optional<UnixDateTime> last_modified;
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};
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void update_header_fields(HeaderList&, HeaderList const&);
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AK::Duration compute_current_time_offset_for_testing(Optional<DiskCache&>, HeaderList const& request_headers);
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}
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