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/*
* Copyright (C) 2020-2022 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.
*/
#include "config.h"
#include "RemoteCDMFactoryProxy.h"
#if ENABLE(GPU_PROCESS) && ENABLE(ENCRYPTED_MEDIA)
#include "GPUProcess.h"
#include "RemoteCDMConfiguration.h"
#include "RemoteCDMInstanceProxy.h"
#include "RemoteCDMInstanceSessionProxy.h"
#include "RemoteCDMProxy.h"
#include <WebCore/CDMFactory.h>
#include <wtf/Algorithms.h>
namespace WebKit {
using namespace WebCore;
RemoteCDMFactoryProxy::RemoteCDMFactoryProxy(GPUConnectionToWebProcess& connection)
: m_gpuConnectionToWebProcess(connection)
{
}
RemoteCDMFactoryProxy::~RemoteCDMFactoryProxy()
{
clear();
}
void RemoteCDMFactoryProxy::clear()
{
m_proxies.clear();
}
static CDMFactory* factoryForKeySystem(const String& keySystem)
{
auto& factories = CDMFactory::registeredFactories();
auto foundIndex = factories.findIf([&] (auto& factory) { return factory->supportsKeySystem(keySystem); });
if (foundIndex == notFound)
return nullptr;
return factories[foundIndex];
}
void RemoteCDMFactoryProxy::createCDM(const String& keySystem, CompletionHandler<void(RemoteCDMIdentifier&&, RemoteCDMConfiguration&&)>&& completion)
{
auto factory = factoryForKeySystem(keySystem);
if (!factory) {
completion({ }, { });
return;
}
auto privateCDM = factory->createCDM(keySystem, *this);
if (!privateCDM) {
completion({ }, { });
return;
}
auto proxy = RemoteCDMProxy::create(*this, WTFMove(privateCDM));
auto identifier = RemoteCDMIdentifier::generate();
RemoteCDMConfiguration configuration = proxy->configuration();
addProxy(identifier, WTFMove(proxy));
completion(WTFMove(identifier), WTFMove(configuration));
}
void RemoteCDMFactoryProxy::supportsKeySystem(const String& keySystem, CompletionHandler<void(bool)>&& completion)
{
completion(factoryForKeySystem(keySystem));
}
void RemoteCDMFactoryProxy::didReceiveCDMMessage(IPC::Connection& connection, IPC::Decoder& decoder)
{
if (auto* proxy = m_proxies.get(ObjectIdentifier<RemoteCDMIdentifierType>(decoder.destinationID())))
proxy->didReceiveMessage(connection, decoder);
}
void RemoteCDMFactoryProxy::didReceiveCDMInstanceMessage(IPC::Connection& connection, IPC::Decoder& decoder)
{
if (auto* instance = m_instances.get(ObjectIdentifier<RemoteCDMInstanceIdentifierType>(decoder.destinationID())))
instance->didReceiveMessage(connection, decoder);
}
void RemoteCDMFactoryProxy::didReceiveCDMInstanceSessionMessage(IPC::Connection& connection, IPC::Decoder& decoder)
{
if (auto* session = m_sessions.get(ObjectIdentifier<RemoteCDMInstanceSessionIdentifierType>(decoder.destinationID())))
session->didReceiveMessage(connection, decoder);
}
bool RemoteCDMFactoryProxy::didReceiveSyncCDMMessage(IPC::Connection& connection, IPC::Decoder& decoder, UniqueRef<IPC::Encoder>& encoder)
{
if (auto* proxy = m_proxies.get(ObjectIdentifier<RemoteCDMIdentifierType>(decoder.destinationID())))
return proxy->didReceiveSyncMessage(connection, decoder, encoder);
return false;
}
bool RemoteCDMFactoryProxy::didReceiveSyncCDMInstanceMessage(IPC::Connection& connection, IPC::Decoder& decoder, UniqueRef<IPC::Encoder>& encoder)
{
if (auto* instance = m_instances.get(ObjectIdentifier<RemoteCDMInstanceIdentifierType>(decoder.destinationID())))
return instance->didReceiveSyncMessage(connection, decoder, encoder);
return false;
}
bool RemoteCDMFactoryProxy::didReceiveSyncCDMInstanceSessionMessage(IPC::Connection& connection, IPC::Decoder& decoder, UniqueRef<IPC::Encoder>& encoder)
{
if (auto* session = m_sessions.get(ObjectIdentifier<RemoteCDMInstanceSessionIdentifierType>(decoder.destinationID())))
return session->didReceiveSyncMessage(connection, decoder, encoder);
return false;
}
void RemoteCDMFactoryProxy::addProxy(const RemoteCDMIdentifier& identifier, std::unique_ptr<RemoteCDMProxy>&& proxy)
{
ASSERT(!m_proxies.contains(identifier));
m_proxies.set(identifier, WTFMove(proxy));
}
void RemoteCDMFactoryProxy::removeProxy(const RemoteCDMIdentifier& identifier)
{
ASSERT(m_proxies.contains(identifier));
m_proxies.remove(identifier);
}
void RemoteCDMFactoryProxy::addInstance(const RemoteCDMInstanceIdentifier& identifier, std::unique_ptr<RemoteCDMInstanceProxy>&& instance)
{
ASSERT(!m_instances.contains(identifier));
m_instances.set(identifier, WTFMove(instance));
}
void RemoteCDMFactoryProxy::removeInstance(const RemoteCDMInstanceIdentifier& identifier)
{
ASSERT(m_instances.contains(identifier));
m_instances.remove(identifier);
if (m_gpuConnectionToWebProcess && allowsExitUnderMemoryPressure())
m_gpuConnectionToWebProcess->gpuProcess().tryExitIfUnusedAndUnderMemoryPressure();
}
RemoteCDMInstanceProxy* RemoteCDMFactoryProxy::getInstance(const RemoteCDMInstanceIdentifier& identifier)
{
return m_instances.get(identifier);
}
void RemoteCDMFactoryProxy::addSession(const RemoteCDMInstanceSessionIdentifier& identifier, std::unique_ptr<RemoteCDMInstanceSessionProxy>&& session)
{
ASSERT(!m_sessions.contains(identifier));
m_sessions.set(identifier, WTFMove(session));
}
void RemoteCDMFactoryProxy::removeSession(const RemoteCDMInstanceSessionIdentifier& identifier)
{
ASSERT(m_sessions.contains(identifier));
m_sessions.remove(identifier);
}
bool RemoteCDMFactoryProxy::allowsExitUnderMemoryPressure() const
{
return m_instances.isEmpty();
}
#if !RELEASE_LOG_DISABLED
const Logger& RemoteCDMFactoryProxy::logger() const
{
if (!m_logger) {
m_logger = Logger::create(this);
m_logger->setEnabled(this, m_gpuConnectionToWebProcess ? m_gpuConnectionToWebProcess->sessionID().isAlwaysOnLoggingAllowed() : false);
}
return *m_logger;
}
#endif
}
#endif
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