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/*
* Copyright (C) 2021 Apple Inc.
*
* 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 "RTCDataChannelRemoteHandler.h"
#if ENABLE(WEB_RTC)
#include "ProcessQualified.h"
#include "RTCDataChannelHandlerClient.h"
#include "RTCDataChannelRemoteHandlerConnection.h"
#include "ScriptExecutionContextIdentifier.h"
#include "SharedBuffer.h"
namespace WebCore {
std::unique_ptr<RTCDataChannelRemoteHandler> RTCDataChannelRemoteHandler::create(RTCDataChannelIdentifier remoteIdentifier, RefPtr<RTCDataChannelRemoteHandlerConnection>&& connection)
{
if (!connection)
return nullptr;
return makeUnique<RTCDataChannelRemoteHandler>(remoteIdentifier, connection.releaseNonNull());
}
RTCDataChannelRemoteHandler::RTCDataChannelRemoteHandler(RTCDataChannelIdentifier remoteIdentifier, Ref<RTCDataChannelRemoteHandlerConnection>&& connection)
: m_remoteIdentifier(remoteIdentifier)
, m_connection(WTFMove(connection))
{
}
RTCDataChannelRemoteHandler::~RTCDataChannelRemoteHandler() = default;
void RTCDataChannelRemoteHandler::didChangeReadyState(RTCDataChannelState state)
{
m_client->didChangeReadyState(state);
}
void RTCDataChannelRemoteHandler::didReceiveStringData(String&& text)
{
m_client->didReceiveStringData(text);
}
void RTCDataChannelRemoteHandler::didReceiveRawData(std::span<const uint8_t> data)
{
m_client->didReceiveRawData(data);
}
void RTCDataChannelRemoteHandler::didDetectError(Ref<RTCError>&& error)
{
m_client->didDetectError(WTFMove(error));
}
void RTCDataChannelRemoteHandler::bufferedAmountIsDecreasing(size_t amount)
{
m_client->bufferedAmountIsDecreasing(amount);
}
void RTCDataChannelRemoteHandler::readyToSend()
{
m_isReadyToSend = true;
for (auto& message : m_pendingMessages)
m_connection->sendData(m_remoteIdentifier, message.isRaw, message.buffer->makeContiguous()->span());
m_pendingMessages.clear();
if (m_isPendingClose)
m_connection->close(m_remoteIdentifier);
}
void RTCDataChannelRemoteHandler::setClient(RTCDataChannelHandlerClient& client, ScriptExecutionContextIdentifier contextIdentifier)
{
m_client = &client;
ASSERT(m_localIdentifier.channelIdentifier);
m_connection->connectToSource(*this, contextIdentifier, m_localIdentifier, m_remoteIdentifier);
}
bool RTCDataChannelRemoteHandler::sendStringData(const CString& text)
{
if (!m_isReadyToSend) {
m_pendingMessages.append(Message { false, SharedBuffer::create(text.span()) });
return true;
}
m_connection->sendData(m_remoteIdentifier, false, text.span());
return true;
}
bool RTCDataChannelRemoteHandler::sendRawData(std::span<const uint8_t> data)
{
if (!m_isReadyToSend) {
m_pendingMessages.append(Message { true, SharedBuffer::create(data) });
return true;
}
m_connection->sendData(m_remoteIdentifier, true, data);
return true;
}
void RTCDataChannelRemoteHandler::close()
{
if (!m_isReadyToSend) {
m_isPendingClose = true;
return;
}
m_connection->close(m_remoteIdentifier);
}
} // namespace WebCore
#endif // ENABLE(WEB_RTC)
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