mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-26 01:35:08 +02:00
40800fd91e
Our previous implementation was a bit too tolerant of bad header values. For example, extracting a "max-age" from a header value of "abmax-agecd" would have incorrectly parsed successfully. We now find exact (case-insensitive) directive matches. We also handle quoted string values, which may contain important delimeters that we would have previously split on.
63 lines
2.4 KiB
C++
63 lines
2.4 KiB
C++
/*
|
|
* Copyright (c) 2025-2026, Tim Flynn <trflynn89@ladybird.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/LexicalPath.h>
|
|
#include <AK/StringView.h>
|
|
#include <AK/Time.h>
|
|
#include <AK/Types.h>
|
|
#include <LibHTTP/Forward.h>
|
|
#include <LibHTTP/HeaderList.h>
|
|
#include <LibURL/Forward.h>
|
|
|
|
namespace HTTP {
|
|
|
|
constexpr inline auto TEST_CACHE_ENABLED_HEADER = "X-Ladybird-Enable-Disk-Cache"sv;
|
|
constexpr inline auto TEST_CACHE_STATUS_HEADER = "X-Ladybird-Disk-Cache-Status"sv;
|
|
constexpr inline auto TEST_CACHE_REVALIDATION_STATUS_HEADER = "X-Ladybird-Revalidation-Status"sv;
|
|
constexpr inline auto TEST_CACHE_REQUEST_TIME_OFFSET = "X-Ladybird-Request-Time-Offset"sv;
|
|
|
|
String serialize_url_for_cache_storage(URL::URL const&);
|
|
u64 create_cache_key(StringView url, StringView method);
|
|
u64 create_vary_key(HeaderList const& request_headers, HeaderList const& response_headers);
|
|
LexicalPath path_for_cache_entry(LexicalPath const& cache_directory, u64 cache_key, u64 vary_key);
|
|
|
|
bool is_cacheable(StringView method, HeaderList const&);
|
|
bool is_cacheable(u32 status_code, HeaderList const&);
|
|
bool is_header_exempted_from_storage(StringView name);
|
|
|
|
AK::Duration calculate_freshness_lifetime(u32 status_code, HeaderList const&, AK::Duration current_time_offset_for_testing = {});
|
|
AK::Duration calculate_age(HeaderList const&, UnixDateTime request_time, UnixDateTime response_time, AK::Duration current_time_offset_for_testing = {});
|
|
AK::Duration calculate_stale_while_revalidate_lifetime(HeaderList const&, AK::Duration freshness_lifetime);
|
|
|
|
enum class CacheLifetimeStatus {
|
|
Fresh,
|
|
Expired,
|
|
MustRevalidate,
|
|
StaleWhileRevalidate,
|
|
};
|
|
CacheLifetimeStatus cache_lifetime_status(HeaderList const&, AK::Duration freshness_lifetime, AK::Duration current_age);
|
|
|
|
struct RevalidationAttributes {
|
|
static RevalidationAttributes create(HeaderList const&);
|
|
|
|
Optional<ByteString> etag;
|
|
Optional<UnixDateTime> last_modified;
|
|
};
|
|
|
|
void store_header_and_trailer_fields(HeaderList&, HeaderList const&);
|
|
void update_header_fields(HeaderList&, HeaderList const&);
|
|
|
|
bool contains_cache_control_directive(StringView cache_control, StringView directive);
|
|
Optional<StringView> extract_cache_control_directive(StringView cache_control, StringView directive);
|
|
|
|
ByteString normalize_request_vary_header_values(StringView header, HeaderList const& request_headers);
|
|
|
|
AK::Duration compute_current_time_offset_for_testing(Optional<DiskCache&>, HeaderList const& request_headers);
|
|
|
|
}
|