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/*
* Copyright (C) 2008-2020 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. ``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
* 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 "HTTPHeaderNames.h"
#include "ReferrerPolicy.h"
#include "ResourceResponse.h"
#include "StoredCredentialsPolicy.h"
#include <wtf/Expected.h>
#include <wtf/Forward.h>
#include <wtf/OptionSet.h>
namespace PAL {
class SessionID;
}
namespace WebCore {
class CachedResourceRequest;
class Document;
class HTTPHeaderMap;
class OriginAccessPatterns;
class ResourceError;
class ResourceRequest;
class ResourceResponse;
class SecurityOrigin;
struct ResourceLoaderOptions;
enum class CrossOriginEmbedderPolicyValue : bool;
WEBCORE_EXPORT bool isSimpleCrossOriginAccessRequest(const String& method, const HTTPHeaderMap&);
bool isOnAccessControlSimpleRequestMethodAllowlist(const String&);
void updateRequestReferrer(ResourceRequest&, ReferrerPolicy, const URL&, const OriginAccessPatterns&);
WEBCORE_EXPORT void updateRequestForAccessControl(ResourceRequest&, SecurityOrigin&, StoredCredentialsPolicy);
WEBCORE_EXPORT ResourceRequest createAccessControlPreflightRequest(const ResourceRequest&, SecurityOrigin&, const String&, bool includeFetchMetadata);
enum class SameOriginFlag : bool { No, Yes };
CachedResourceRequest createPotentialAccessControlRequest(ResourceRequest&&, ResourceLoaderOptions&&, Document&, const String& crossOriginAttribute, SameOriginFlag = SameOriginFlag::No);
enum class HTTPHeadersToKeepFromCleaning : uint8_t {
ContentType = 1 << 0,
Referer = 1 << 1,
Origin = 1 << 2,
UserAgent = 1 << 3,
AcceptEncoding = 1 << 4,
CacheControl = 1 << 5,
Pragma = 1 << 6
};
OptionSet<HTTPHeadersToKeepFromCleaning> httpHeadersToKeepFromCleaning(const HTTPHeaderMap&);
WEBCORE_EXPORT void cleanHTTPRequestHeadersForAccessControl(ResourceRequest&, OptionSet<HTTPHeadersToKeepFromCleaning>);
class WEBCORE_EXPORT CrossOriginAccessControlCheckDisabler {
public:
static CrossOriginAccessControlCheckDisabler& singleton();
virtual ~CrossOriginAccessControlCheckDisabler() = default;
void setCrossOriginAccessControlCheckEnabled(bool);
virtual bool crossOriginAccessControlCheckEnabled() const;
private:
bool m_accessControlCheckEnabled { true };
};
WEBCORE_EXPORT Expected<void, String> passesAccessControlCheck(const ResourceResponse&, StoredCredentialsPolicy, const SecurityOrigin&, const CrossOriginAccessControlCheckDisabler*);
WEBCORE_EXPORT Expected<void, String> validatePreflightResponse(PAL::SessionID, const ResourceRequest&, const ResourceResponse&, StoredCredentialsPolicy, const SecurityOrigin& topOrigin, const SecurityOrigin& securityOrigin, const CrossOriginAccessControlCheckDisabler*);
enum class ForNavigation : bool { No, Yes };
WEBCORE_EXPORT std::optional<ResourceError> validateCrossOriginResourcePolicy(CrossOriginEmbedderPolicyValue, const SecurityOrigin&, const URL&, const ResourceResponse&, ForNavigation, const OriginAccessPatterns&);
WEBCORE_EXPORT std::optional<ResourceError> validateCrossOriginResourcePolicy(CrossOriginEmbedderPolicyValue, const SecurityOrigin&, const URL&, bool isResponseNull, const URL& responseURL, const String& crossOriginResourcePolicyHeaderValue, ForNavigation, const OriginAccessPatterns&);
std::optional<ResourceError> validateRangeRequestedFlag(const ResourceRequest&, const ResourceResponse&);
String validateCrossOriginRedirectionURL(const URL&);
} // namespace WebCore
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