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/*
* Copyright (C) 2017 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
#if ENABLE(ENCRYPTED_MEDIA)
#include "CDMKeyStatus.h"
#include "CDMMessageType.h"
#include "CDMSessionType.h"
#include <utility>
#include <wtf/AbstractRefCountedAndCanMakeWeakPtr.h>
#include <wtf/CompletionHandler.h>
#include <wtf/Forward.h>
#include <wtf/RefCounted.h>
#include <wtf/TypeCasts.h>
#if !RELEASE_LOG_DISABLED
namespace WTF {
class Logger;
}
#endif
namespace WebCore {
class CDMInstanceSession;
struct CDMKeySystemConfiguration;
class SharedBuffer;
class CDMInstanceClient : public AbstractRefCountedAndCanMakeWeakPtr<CDMInstanceClient> {
public:
virtual ~CDMInstanceClient() = default;
virtual void unrequestedInitializationDataReceived(const String&, Ref<SharedBuffer>&&) = 0;
#if !RELEASE_LOG_DISABLED
virtual const Logger& logger() const = 0;
virtual uint64_t logIdentifier() const = 0;
#endif
};
enum class CDMInstanceSuccessValue : bool {
Failed,
Succeeded,
};
enum class CDMInstanceAllowDistinctiveIdentifiers : bool {
No,
Yes,
};
enum class CDMInstanceAllowPersistentState : bool {
No,
Yes,
};
enum class CDMInstanceHDCPStatus : uint8_t {
Unknown,
Valid,
OutputRestricted,
OutputDownscaled,
};
// JavaScript's handle to a CDMInstance, must be used from the
// main-thread only!
class CDMInstance : public RefCounted<CDMInstance> {
public:
virtual ~CDMInstance() = default;
virtual void setClient(WeakPtr<CDMInstanceClient>&&) { }
virtual void clearClient() { }
#if !RELEASE_LOG_DISABLED
virtual void setLogIdentifier(uint64_t) { }
#endif
enum class ImplementationType {
Mock,
ClearKey,
FairPlayStreaming,
Remote,
#if ENABLE(THUNDER)
Thunder,
#endif
};
virtual ImplementationType implementationType() const = 0;
using SuccessValue = WebCore::CDMInstanceSuccessValue;
using SuccessCallback = CompletionHandler<void(SuccessValue)>;
using AllowDistinctiveIdentifiers = WebCore::CDMInstanceAllowDistinctiveIdentifiers;
using AllowPersistentState = WebCore::CDMInstanceAllowPersistentState;
virtual void initializeWithConfiguration(const CDMKeySystemConfiguration&, AllowDistinctiveIdentifiers, AllowPersistentState, SuccessCallback&&) = 0;
virtual void setServerCertificate(Ref<SharedBuffer>&&, SuccessCallback&&) = 0;
virtual void setStorageDirectory(const String&) = 0;
virtual const String& keySystem() const = 0;
virtual RefPtr<CDMInstanceSession> createSession() = 0;
using HDCPStatus = CDMInstanceHDCPStatus;
virtual SuccessValue setHDCPStatus(HDCPStatus) { return SuccessValue::Failed; }
};
} // namespace WebCore
#define SPECIALIZE_TYPE_TRAITS_CDM_INSTANCE(ToValueTypeName, ImplementationTypeName) \
SPECIALIZE_TYPE_TRAITS_BEGIN(ToValueTypeName) \
static bool isType(const WebCore::CDMInstance& instance) { return instance.implementationType() == ImplementationTypeName; } \
SPECIALIZE_TYPE_TRAITS_END()
#endif
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