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/*
* Copyright (C) 2020 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 "RemoteLegacyCDMSessionProxy.h"
#if ENABLE(GPU_PROCESS) && ENABLE(LEGACY_ENCRYPTED_MEDIA)
#include "GPUConnectionToWebProcess.h"
#include "RemoteLegacyCDMFactoryProxy.h"
#include "RemoteLegacyCDMSessionMessages.h"
#include "SharedBufferCopy.h"
#include <JavaScriptCore/GenericTypedArrayViewInlines.h>
#include <WebCore/LegacyCDM.h>
#include <WebCore/SharedBuffer.h>
namespace WebKit {
using namespace WebCore;
std::unique_ptr<RemoteLegacyCDMSessionProxy> RemoteLegacyCDMSessionProxy::create(WeakPtr<RemoteLegacyCDMFactoryProxy>&& factory, RemoteLegacyCDMSessionIdentifier identifier, WebCore::LegacyCDM& cdm)
{
return std::unique_ptr<RemoteLegacyCDMSessionProxy>(new RemoteLegacyCDMSessionProxy(WTFMove(factory), identifier, cdm));
}
RemoteLegacyCDMSessionProxy::RemoteLegacyCDMSessionProxy(WeakPtr<RemoteLegacyCDMFactoryProxy>&& factory, RemoteLegacyCDMSessionIdentifier identifier, WebCore::LegacyCDM& cdm)
: m_factory(WTFMove(factory))
, m_identifier(identifier)
, m_session(cdm.createSession(*this))
{
}
RemoteLegacyCDMSessionProxy::~RemoteLegacyCDMSessionProxy() = default;
static RefPtr<Uint8Array> convertToUint8Array(IPC::SharedBufferCopy&& buffer)
{
if (!buffer.buffer())
return nullptr;
auto arrayBuffer = buffer.buffer()->tryCreateArrayBuffer();
if (!arrayBuffer)
return nullptr;
return Uint8Array::create(arrayBuffer.releaseNonNull(), 0, buffer.size());
}
template <typename T>
static std::optional<IPC::SharedBufferCopy> convertToOptionalSharedBuffer(T array)
{
if (!array)
return std::nullopt;
return { IPC::SharedBufferCopy(SharedBuffer::create((const char*)array->data(), array->byteLength())) };
}
void RemoteLegacyCDMSessionProxy::generateKeyRequest(const String& mimeType, IPC::SharedBufferCopy&& initData, GenerateKeyCallback&& completion)
{
auto initDataArray = convertToUint8Array(WTFMove(initData));
if (!initDataArray) {
completion({ }, emptyString(), 0, 0);
return;
}
String destinationURL;
unsigned short errorCode { 0 };
uint32_t systemCode { 0 };
auto keyRequest = m_session->generateKeyRequest(mimeType, initDataArray.get(), destinationURL, errorCode, systemCode);
destinationURL = "this is a test string"_s;
completion(convertToOptionalSharedBuffer(keyRequest), destinationURL, errorCode, systemCode);
}
void RemoteLegacyCDMSessionProxy::releaseKeys()
{
m_session->releaseKeys();
}
void RemoteLegacyCDMSessionProxy::update(IPC::SharedBufferCopy&& update, UpdateCallback&& completion)
{
auto updateArray = convertToUint8Array(WTFMove(update));
if (!updateArray) {
completion(false, std::nullopt, 0, 0);
return;
}
RefPtr<Uint8Array> nextMessage;
unsigned short errorCode { 0 };
uint32_t systemCode { 0 };
bool succeeded = m_session->update(updateArray.get(), nextMessage, errorCode, systemCode);
completion(succeeded, convertToOptionalSharedBuffer(nextMessage), errorCode, systemCode);
}
RefPtr<ArrayBuffer> RemoteLegacyCDMSessionProxy::getCachedKeyForKeyId(const String& keyId)
{
return m_session->cachedKeyForKeyID(keyId);
}
void RemoteLegacyCDMSessionProxy::cachedKeyForKeyID(String keyId, CachedKeyForKeyIDCallback&& completion)
{
completion(convertToOptionalSharedBuffer(getCachedKeyForKeyId(keyId)));
}
void RemoteLegacyCDMSessionProxy::sendMessage(Uint8Array* message, String destinationURL)
{
if (!m_factory)
return;
auto* gpuConnectionToWebProcess = m_factory->gpuConnectionToWebProcess();
if (!gpuConnectionToWebProcess)
return;
gpuConnectionToWebProcess->connection().send(Messages::RemoteLegacyCDMSession::SendMessage(convertToOptionalSharedBuffer(message), destinationURL), m_identifier);
}
void RemoteLegacyCDMSessionProxy::sendError(MediaKeyErrorCode errorCode, uint32_t systemCode)
{
if (!m_factory)
return;
auto* gpuConnectionToWebProcess = m_factory->gpuConnectionToWebProcess();
if (!gpuConnectionToWebProcess)
return;
gpuConnectionToWebProcess->connection().send(Messages::RemoteLegacyCDMSession::SendError(errorCode, systemCode), m_identifier);
}
String RemoteLegacyCDMSessionProxy::mediaKeysStorageDirectory() const
{
if (!m_factory)
return emptyString();
auto* gpuConnectionToWebProcess = m_factory->gpuConnectionToWebProcess();
if (!gpuConnectionToWebProcess)
return emptyString();
return gpuConnectionToWebProcess->mediaKeysStorageDirectory();
}
}
#endif
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