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/*
* Copyright (C) 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
#if ENABLE(ENCRYPTED_MEDIA)
#include "CDMPrivate.h"
#include "ContextDestructionObserver.h"
#include "MediaKeySessionType.h"
#include "MediaKeySystemConfiguration.h"
#include "MediaKeySystemMediaCapability.h"
#include "MediaKeysRestrictions.h"
#include <wtf/Function.h>
#include <wtf/Ref.h>
#include <wtf/RefCountedAndCanMakeWeakPtr.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/WTFString.h>
#if !RELEASE_LOG_DISABLED
namespace WTF {
class Logger;
}
#endif
namespace WebCore {
class CDMFactory;
class CDMInstance;
class CDMPrivate;
class Document;
class ScriptExecutionContext;
class SharedBuffer;
class CDM : public RefCountedAndCanMakeWeakPtr<CDM>, public CDMPrivateClient, private ContextDestructionObserver {
public:
static bool supportsKeySystem(const String&);
static bool isPersistentType(MediaKeySessionType);
static Ref<CDM> create(Document&, const String& keySystem, const String& mediaKeysHashSalt);
~CDM();
using SupportedConfigurationCallback = Function<void(std::optional<MediaKeySystemConfiguration>)>;
void getSupportedConfiguration(MediaKeySystemConfiguration&& candidateConfiguration, SupportedConfigurationCallback&&);
const String& keySystem() const { return m_keySystem; }
void loadAndInitialize();
RefPtr<CDMInstance> createInstance();
bool supportsServerCertificates() const;
bool supportsSessions() const;
bool supportsInitDataType(const AtomString&) const;
RefPtr<SharedBuffer> sanitizeInitData(const AtomString& initDataType, const SharedBuffer&);
bool supportsInitData(const AtomString& initDataType, const SharedBuffer&);
RefPtr<SharedBuffer> sanitizeResponse(const SharedBuffer&);
std::optional<String> sanitizeSessionId(const String& sessionId);
String storageDirectory() const;
const String& mediaKeysHashSalt() const { return m_mediaKeysHashSalt; }
#if !RELEASE_LOG_DISABLED
const Logger& logger() const final { return m_logger; }
uint64_t logIdentifier() const { return m_logIdentifier; }
#endif
private:
CDM(Document&, const String& keySystem, const String& mediaKeysHashSalt);
#if !RELEASE_LOG_DISABLED
Ref<const Logger> m_logger;
const uint64_t m_logIdentifier;
#endif
String m_keySystem;
String m_mediaKeysHashSalt;
std::unique_ptr<CDMPrivate> m_private;
};
}
#endif
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