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/*
* Copyright (C) 2013 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(LEGACY_ENCRYPTED_MEDIA)
#include "ActiveDOMObject.h"
#include "ContextDestructionObserverInlines.h"
#include "EventTarget.h"
#include "ExceptionOr.h"
#include "LegacyCDMSession.h"
#include "Timer.h"
#include <JavaScriptCore/Forward.h>
#include <wtf/Deque.h>
namespace WebCore {
class WebKitMediaKeyError;
class WebKitMediaKeys;
class WebKitMediaKeySession final : public RefCounted<WebKitMediaKeySession>, public EventTarget, public ActiveDOMObject, private LegacyCDMSessionClient {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(WebKitMediaKeySession);
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
static Ref<WebKitMediaKeySession> create(Document&, WebKitMediaKeys&, const String& keySystem);
~WebKitMediaKeySession();
WebKitMediaKeyError* error() { return m_error.get(); }
const String& keySystem() const { return m_keySystem; }
const String& sessionId() const { return m_sessionId; }
ExceptionOr<void> update(Ref<Uint8Array>&& key);
void close();
LegacyCDMSession* session() { return m_session.get(); }
void detachKeys() { m_keys = nullptr; }
void generateKeyRequest(const String& mimeType, Ref<Uint8Array>&& initData);
RefPtr<ArrayBuffer> cachedKeyForKeyId(const String& keyId) const;
private:
WebKitMediaKeySession(Document&, WebKitMediaKeys&, const String& keySystem);
void keyRequestTimerFired();
void addKeyTimerFired();
void sendMessage(Uint8Array*, String destinationURL) final;
void sendError(MediaKeyErrorCode, uint32_t systemCode) final;
String mediaKeysStorageDirectory() const final;
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
// ActiveDOMObject.
void stop() final;
bool virtualHasPendingActivity() const final;
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::WebKitMediaKeySession; }
ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
#if !RELEASE_LOG_DISABLED
const Logger& logger() const final { return m_logger; }
uint64_t logIdentifier() const final { return m_logIdentifier; }
ASCIILiteral logClassName() const { return "WebKitMediaKeySession"_s; }
WTFLogChannel& logChannel() const;
Ref<Logger> m_logger;
const uint64_t m_logIdentifier;
#endif
WebKitMediaKeys* m_keys;
String m_keySystem;
String m_sessionId;
RefPtr<WebKitMediaKeyError> m_error;
RefPtr<LegacyCDMSession> m_session;
struct PendingKeyRequest {
String mimeType;
Ref<Uint8Array> initData;
};
Deque<PendingKeyRequest> m_pendingKeyRequests;
Timer m_keyRequestTimer;
Deque<Ref<Uint8Array>> m_pendingKeys;
Timer m_addKeyTimer;
};
}
#endif // ENABLE(LEGACY_ENCRYPTED_MEDIA)
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