blob: 4bf7b687885fcf2a21a550d631f5ea9bc3141963 [file] [log] [blame]
/*
* 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 "ContextDestructionObserver.h"
#include "MediaKeySessionType.h"
#include "MediaKeySystemConfiguration.h"
#include "MediaKeySystemMediaCapability.h"
#include "MediaKeysRestrictions.h"
#include "SharedBuffer.h"
#include <wtf/Function.h>
#include <wtf/HashSet.h>
#include <wtf/Ref.h>
#include <wtf/RefCounted.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class CDMFactory;
class CDMInstance;
class CDMPrivate;
class Document;
class ScriptExecutionContext;
class SharedBuffer;
class CDM : public RefCounted<CDM>, private ContextDestructionObserver {
public:
static bool supportsKeySystem(const String&);
static bool isPersistentType(MediaKeySessionType);
static Ref<CDM> create(Document&, const String& keySystem);
~CDM();
using SupportedConfigurationCallback = WTF::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 AtomicString&) const;
RefPtr<SharedBuffer> sanitizeInitData(const AtomicString& initDataType, const SharedBuffer&);
bool supportsInitData(const AtomicString& initDataType, const SharedBuffer&);
RefPtr<SharedBuffer> sanitizeResponse(const SharedBuffer&);
std::optional<String> sanitizeSessionId(const String& sessionId);
String storageDirectory() const;
private:
CDM(Document&, const String& keySystem);
enum class ConfigurationStatus {
Supported,
NotSupported,
ConsentDenied,
};
enum class ConsentStatus {
ConsentDenied,
InformUser,
Allowed,
};
enum class AudioVideoType {
Audio,
Video,
};
void doSupportedConfigurationStep(MediaKeySystemConfiguration&& candidateConfiguration, MediaKeysRestrictions&&, SupportedConfigurationCallback&&);
std::optional<MediaKeySystemConfiguration> getSupportedConfiguration(const MediaKeySystemConfiguration& candidateConfiguration, MediaKeysRestrictions&);
std::optional<Vector<MediaKeySystemMediaCapability>> getSupportedCapabilitiesForAudioVideoType(AudioVideoType, const Vector<MediaKeySystemMediaCapability>& requestedCapabilities, const MediaKeySystemConfiguration& partialConfiguration, MediaKeysRestrictions&);
WeakPtr<CDM> createWeakPtr() { return m_weakPtrFactory.createWeakPtr(*this); }
using ConsentStatusCallback = WTF::Function<void(ConsentStatus, MediaKeySystemConfiguration&&, MediaKeysRestrictions&&)>;
void getConsentStatus(MediaKeySystemConfiguration&& accumulatedConfiguration, MediaKeysRestrictions&&, ConsentStatusCallback&&);
String m_keySystem;
std::unique_ptr<CDMPrivate> m_private;
WeakPtrFactory<CDM> m_weakPtrFactory;
};
}
#endif