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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 "CDMInstance.h"
#include "CDMRequirement.h"
#include "CDMSessionType.h"
#include <wtf/Forward.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class CDMPrivate;
}
namespace WTF {
template<typename T> struct IsDeprecatedWeakRefSmartPointerException;
template<> struct IsDeprecatedWeakRefSmartPointerException<WebCore::CDMPrivate> : std::true_type { };
}
#if !RELEASE_LOG_DISABLED
namespace WTF {
class Logger;
}
#endif
namespace WebCore {
struct CDMKeySystemConfiguration;
struct CDMMediaCapability;
struct CDMRestrictions;
class SharedBuffer;
class CDMPrivateClient {
public:
virtual ~CDMPrivateClient() = default;
#if !RELEASE_LOG_DISABLED
virtual const Logger& logger() const = 0;
#endif
};
class CDMPrivate : public CanMakeWeakPtr<CDMPrivate> {
public:
WEBCORE_EXPORT virtual ~CDMPrivate();
#if !RELEASE_LOG_DISABLED
virtual void setLogIdentifier(uint64_t) { };
#endif
enum class LocalStorageAccess : bool {
NotAllowed,
Allowed,
};
using SupportedConfigurationCallback = Function<void(std::optional<CDMKeySystemConfiguration>)>;
WEBCORE_EXPORT virtual void getSupportedConfiguration(CDMKeySystemConfiguration&& candidateConfiguration, LocalStorageAccess, SupportedConfigurationCallback&&);
virtual Vector<AtomString> supportedInitDataTypes() const = 0;
virtual bool supportsConfiguration(const CDMKeySystemConfiguration&) const = 0;
virtual bool supportsConfigurationWithRestrictions(const CDMKeySystemConfiguration&, const CDMRestrictions&) const = 0;
virtual bool supportsSessionTypeWithConfiguration(const CDMSessionType&, const CDMKeySystemConfiguration&) const = 0;
virtual Vector<AtomString> supportedRobustnesses() const = 0;
virtual CDMRequirement distinctiveIdentifiersRequirement(const CDMKeySystemConfiguration&, const CDMRestrictions&) const = 0;
virtual CDMRequirement persistentStateRequirement(const CDMKeySystemConfiguration&, const CDMRestrictions&) const = 0;
virtual bool distinctiveIdentifiersAreUniquePerOriginAndClearable(const CDMKeySystemConfiguration&) const = 0;
virtual RefPtr<CDMInstance> createInstance() = 0;
virtual void loadAndInitialize() = 0;
virtual bool supportsServerCertificates() const = 0;
virtual bool supportsSessions() const = 0;
virtual bool supportsInitData(const AtomString&, const SharedBuffer&) const = 0;
virtual RefPtr<SharedBuffer> sanitizeResponse(const SharedBuffer&) const = 0;
virtual std::optional<String> sanitizeSessionId(const String&) const = 0;
protected:
WEBCORE_EXPORT CDMPrivate();
static bool isPersistentType(CDMSessionType);
enum class ConfigurationStatus {
Supported,
NotSupported,
ConsentDenied,
};
enum class ConsentStatus {
ConsentDenied,
InformUser,
Allowed,
};
enum class AudioVideoType {
Audio,
Video,
};
void doSupportedConfigurationStep(CDMKeySystemConfiguration&& candidateConfiguration, CDMRestrictions&&, LocalStorageAccess, SupportedConfigurationCallback&&);
std::optional<CDMKeySystemConfiguration> getSupportedConfiguration(const CDMKeySystemConfiguration& candidateConfiguration, CDMRestrictions&, LocalStorageAccess);
std::optional<Vector<CDMMediaCapability>> getSupportedCapabilitiesForAudioVideoType(AudioVideoType, const Vector<CDMMediaCapability>& requestedCapabilities, const CDMKeySystemConfiguration& partialConfiguration, CDMRestrictions&);
using ConsentStatusCallback = Function<void(ConsentStatus, CDMKeySystemConfiguration&&, CDMRestrictions&&)>;
void getConsentStatus(CDMKeySystemConfiguration&& accumulatedConfiguration, CDMRestrictions&&, LocalStorageAccess, ConsentStatusCallback&&);
};
}
#endif
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