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/*
* Copyright (C) 2018 Igalia S.L. 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 "UserMediaPermissionCheckProxy.h"
#include <WebCore/KeyedCoding.h>
#include <WebCore/SecurityOrigin.h>
#include <wtf/CompletionHandler.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/Ref.h>
#include <wtf/WorkQueue.h>
namespace WebKit {
class DeviceIdHashSaltStorage : public ThreadSafeRefCounted<DeviceIdHashSaltStorage, WTF::DestructionThread::MainRunLoop> {
public:
static Ref<DeviceIdHashSaltStorage> create(const String& deviceIdHashSaltStorageDirectory);
~DeviceIdHashSaltStorage();
void deviceIdHashSaltForOrigin(const WebCore::SecurityOrigin& documentOrigin, const WebCore::SecurityOrigin& parentOrigin, CompletionHandler<void(String&&)>&&);
void getDeviceIdHashSaltOrigins(CompletionHandler<void(HashSet<WebCore::SecurityOriginData>&&)>&&);
void deleteDeviceIdHashSaltForOrigins(const Vector<WebCore::SecurityOriginData>&, CompletionHandler<void()>&&);
void deleteDeviceIdHashSaltOriginsModifiedSince(WallTime, CompletionHandler<void()>&&);
private:
struct HashSaltForOrigin {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
HashSaltForOrigin(WebCore::SecurityOriginData&& documentOrigin, WebCore::SecurityOriginData&& parentOrigin, String&& deviceIdHashSalt, WallTime lastTimeUsed = WallTime::now())
: documentOrigin(WTFMove(documentOrigin))
, parentOrigin(WTFMove(parentOrigin))
, deviceIdHashSalt(WTFMove(deviceIdHashSalt))
, lastTimeUsed(lastTimeUsed)
{ }
HashSaltForOrigin isolatedCopy() const & { return { documentOrigin.isolatedCopy(), parentOrigin.isolatedCopy(), deviceIdHashSalt.isolatedCopy(), lastTimeUsed }; }
HashSaltForOrigin isolatedCopy() && { return { WTFMove(documentOrigin).isolatedCopy(), WTFMove(parentOrigin).isolatedCopy(), WTFMove(deviceIdHashSalt).isolatedCopy(), lastTimeUsed }; }
WebCore::SecurityOriginData documentOrigin;
WebCore::SecurityOriginData parentOrigin;
String deviceIdHashSalt;
WallTime lastTimeUsed;
};
DeviceIdHashSaltStorage(const String& deviceIdHashSaltStorageDirectory);
void loadStorageFromDisk(CompletionHandler<void(HashMap<String, std::unique_ptr<HashSaltForOrigin>>&&)>&&);
void storeHashSaltToDisk(const HashSaltForOrigin&);
void deleteHashSaltFromDisk(const HashSaltForOrigin&);
std::unique_ptr<WebCore::KeyedEncoder> createEncoderFromData(const HashSaltForOrigin&) const;
std::unique_ptr<HashSaltForOrigin> getDataFromDecoder(WebCore::KeyedDecoder*, String&& deviceIdHashSalt) const;
void completePendingHandler(CompletionHandler<void(HashSet<WebCore::SecurityOriginData>&&)>&&);
void completeDeviceIdHashSaltForOriginCall(WebCore::SecurityOriginData&& documentOrigin, WebCore::SecurityOriginData&& parentOrigin, CompletionHandler<void(String&&)>&&);
Ref<WorkQueue> m_queue;
HashMap<String, std::unique_ptr<HashSaltForOrigin>> m_deviceIdHashSaltForOrigins;
bool m_isLoaded { false };
bool m_isClosed { false };
Vector<CompletionHandler<void()>> m_pendingCompletionHandlers;
const String m_deviceIdHashSaltStorageDirectory;
};
} // namespace WebKit
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