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/*
* Copyright (C) 2014-2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <wtf/Forward.h>
#include <wtf/Markable.h>
#include <wtf/WallTime.h>
namespace WebCore {
class CookieJar;
class HTTPHeaderMap;
class NetworkStorageSession;
class ResourceRequest;
class ResourceResponse;
struct RedirectChainCacheStatus {
enum class Status : uint8_t {
NoRedirection,
NotCachedRedirection,
CachedRedirection
};
RedirectChainCacheStatus()
: endOfValidity(WallTime::infinity())
, status(Status::NoRedirection)
{ }
WallTime endOfValidity;
Status status;
};
WEBCORE_EXPORT Seconds computeCurrentAge(const ResourceResponse&, WallTime responseTimestamp);
WEBCORE_EXPORT Seconds computeFreshnessLifetimeForHTTPFamily(const ResourceResponse&, WallTime responseTimestamp);
WEBCORE_EXPORT void updateResponseHeadersAfterRevalidation(ResourceResponse&, const ResourceResponse& validatingResponse);
WEBCORE_EXPORT void updateRedirectChainStatus(RedirectChainCacheStatus&, const ResourceResponse&);
enum ReuseExpiredRedirectionOrNot { DoNotReuseExpiredRedirection, ReuseExpiredRedirection };
WEBCORE_EXPORT bool redirectChainAllowsReuse(RedirectChainCacheStatus, ReuseExpiredRedirectionOrNot);
struct CacheControlDirectives {
constexpr CacheControlDirectives()
: noCache(false)
, noStore(false)
, mustRevalidate(false)
, immutable(false)
{ }
Markable<Seconds, Seconds::MarkableTraits> maxAge;
Markable<Seconds, Seconds::MarkableTraits> maxStale;
Markable<Seconds, Seconds::MarkableTraits> staleWhileRevalidate;
bool noCache : 1;
bool noStore : 1;
bool mustRevalidate : 1;
bool immutable : 1;
};
WEBCORE_EXPORT CacheControlDirectives parseCacheControlDirectives(const HTTPHeaderMap&);
WEBCORE_EXPORT Vector<std::pair<String, String>> collectVaryingRequestHeaders(NetworkStorageSession*, const ResourceRequest&, const ResourceResponse&);
WEBCORE_EXPORT Vector<std::pair<String, String>> collectVaryingRequestHeaders(const CookieJar*, const ResourceRequest&, const ResourceResponse&);
WEBCORE_EXPORT bool verifyVaryingRequestHeaders(NetworkStorageSession*, const Vector<std::pair<String, String>>& varyingRequestHeaders, const ResourceRequest&);
WEBCORE_EXPORT bool verifyVaryingRequestHeaders(const CookieJar*, const Vector<std::pair<String, String>>& varyingRequestHeaders, const ResourceRequest&);
WEBCORE_EXPORT bool isStatusCodeCacheableByDefault(int statusCode);
WEBCORE_EXPORT bool isStatusCodePotentiallyCacheable(int statusCode);
}