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/*
* Copyright (C) 2023 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 "WebTransportSession.h"
#include "MessageSenderInlines.h"
#include "NetworkConnectionToWebProcessMessages.h"
#include "NetworkProcessConnection.h"
#include "NetworkTransportSessionMessages.h"
#include "WebProcess.h"
#include "WebTransportSendStreamSink.h"
#include <WebCore/Exception.h>
#include <WebCore/WebTransportBidirectionalStreamConstructionParameters.h>
#include <WebCore/WebTransportSessionClient.h>
#include <wtf/Ref.h>
#include <wtf/RunLoop.h>
namespace WebKit {
Ref<WebCore::WebTransportSessionPromise> WebTransportSession::initialize(Ref<IPC::Connection>&& connection, ThreadSafeWeakPtr<WebCore::WebTransportSessionClient>&& client, const URL& url, const WebPageProxyIdentifier& pageID, const WebCore::ClientOrigin& clientOrigin)
{
ASSERT(RunLoop::isMain());
return connection->sendWithPromisedReply(Messages::NetworkConnectionToWebProcess::InitializeWebTransportSession(url, pageID, clientOrigin))->whenSettled(RunLoop::protectedMain(), [connection, client = WTFMove(client)] (auto&& identifier) mutable {
ASSERT(RunLoop::isMain());
if (!identifier || !*identifier)
return WebCore::WebTransportSessionPromise::createAndReject();
return WebCore::WebTransportSessionPromise::createAndResolve(adoptRef(*new WebTransportSession(WTFMove(connection), WTFMove(client), **identifier)));
});
}
WebTransportSession::WebTransportSession(Ref<IPC::Connection>&& connection, ThreadSafeWeakPtr<WebCore::WebTransportSessionClient>&& client, WebTransportSessionIdentifier identifier)
: m_connection(WTFMove(connection))
, m_client(WTFMove(client))
, m_identifier(identifier)
{
ASSERT(RunLoop::isMain());
RELEASE_ASSERT(WebProcess::singleton().isWebTransportEnabled());
WebProcess::singleton().addWebTransportSession(m_identifier, *this);
}
WebTransportSession::~WebTransportSession()
{
ASSERT(RunLoop::isMain());
WebProcess::singleton().removeWebTransportSession(m_identifier);
m_connection->send(Messages::NetworkConnectionToWebProcess::DestroyWebTransportSession(m_identifier), 0);
}
IPC::Connection* WebTransportSession::messageSenderConnection() const
{
return m_connection.ptr();
}
uint64_t WebTransportSession::messageSenderDestinationID() const
{
return m_identifier.toUInt64();
}
void WebTransportSession::receiveDatagram(std::span<const uint8_t> datagram, bool withFin, std::optional<WebCore::Exception>&& exception)
{
ASSERT(RunLoop::isMain());
if (auto strongClient = m_client.get())
strongClient->receiveDatagram(datagram, withFin, WTFMove(exception));
else
ASSERT_NOT_REACHED();
}
void WebTransportSession::receiveIncomingUnidirectionalStream(WebCore::WebTransportStreamIdentifier identifier)
{
ASSERT(RunLoop::isMain());
if (RefPtr strongClient = m_client.get())
strongClient->receiveIncomingUnidirectionalStream(identifier);
else
ASSERT_NOT_REACHED();
}
void WebTransportSession::receiveBidirectionalStream(WebCore::WebTransportStreamIdentifier identifier)
{
ASSERT(RunLoop::isMain());
if (RefPtr strongClient = m_client.get()) {
strongClient->receiveBidirectionalStream(WebCore::WebTransportBidirectionalStreamConstructionParameters {
identifier,
WebTransportSendStreamSink::create(*this, identifier)
});
} else
ASSERT_NOT_REACHED();
}
void WebTransportSession::streamReceiveBytes(WebCore::WebTransportStreamIdentifier identifier, std::span<const uint8_t> bytes, bool withFin, std::optional<WebCore::Exception>&& exception)
{
ASSERT(RunLoop::isMain());
if (RefPtr strongClient = m_client.get())
strongClient->streamReceiveBytes(identifier, bytes, withFin, WTFMove(exception));
else
ASSERT_NOT_REACHED();
}
Ref<WebCore::WebTransportSendPromise> WebTransportSession::sendDatagram(std::span<const uint8_t> datagram)
{
return sendWithPromisedReply(Messages::NetworkTransportSession::SendDatagram(datagram))->whenSettled(RunLoop::protectedMain(), [] (auto&& exception) {
ASSERT(RunLoop::isMain());
if (!exception)
return WebCore::WebTransportSendPromise::createAndReject();
return WebCore::WebTransportSendPromise::createAndResolve(*exception);
});
}
Ref<WebCore::WritableStreamPromise> WebTransportSession::createOutgoingUnidirectionalStream()
{
return sendWithPromisedReply(Messages::NetworkTransportSession::CreateOutgoingUnidirectionalStream())->whenSettled(RunLoop::protectedMain(), [weakThis = ThreadSafeWeakPtr { *this }] (auto&& identifier) mutable {
ASSERT(RunLoop::isMain());
RefPtr strongThis = weakThis.get();
if (!identifier || !*identifier || !strongThis)
return WebCore::WritableStreamPromise::createAndReject();
return WebCore::WritableStreamPromise::createAndResolve(WebTransportSendStreamSink::create(*strongThis, **identifier));
});
}
Ref<WebCore::BidirectionalStreamPromise> WebTransportSession::createBidirectionalStream()
{
return sendWithPromisedReply(Messages::NetworkTransportSession::CreateBidirectionalStream())->whenSettled(RunLoop::protectedMain(), [weakThis = ThreadSafeWeakPtr { *this }] (auto&& identifier) mutable {
ASSERT(RunLoop::isMain());
RefPtr strongThis = weakThis.get();
if (!identifier || !*identifier || !strongThis)
return WebCore::BidirectionalStreamPromise::createAndReject();
return WebCore::BidirectionalStreamPromise::createAndResolve(WebCore::WebTransportBidirectionalStreamConstructionParameters {
**identifier,
WebTransportSendStreamSink::create(*strongThis, **identifier)
});
});
}
Ref<WebCore::WebTransportSendPromise> WebTransportSession::streamSendBytes(WebCore::WebTransportStreamIdentifier identifier, std::span<const uint8_t> bytes, bool withFin)
{
return sendWithPromisedReply(Messages::NetworkTransportSession::StreamSendBytes(identifier, bytes, withFin))->whenSettled(RunLoop::protectedMain(), [] (auto&& exception) {
if (!exception)
return WebCore::WebTransportSendPromise::createAndReject();
return WebCore::WebTransportSendPromise::createAndResolve(*exception);
});
}
void WebTransportSession::terminate(WebCore::WebTransportSessionErrorCode code, CString&& reason)
{
send(Messages::NetworkTransportSession::Terminate(code, WTFMove(reason)));
}
void WebTransportSession::networkProcessCrashed()
{
ASSERT(RunLoop::isMain());
if (RefPtr strongClient = m_client.get())
strongClient->networkProcessCrashed();
}
void WebTransportSession::cancelReceiveStream(WebCore::WebTransportStreamIdentifier identifier, std::optional<WebCore::WebTransportStreamErrorCode> errorCode)
{
send(Messages::NetworkTransportSession::CancelReceiveStream(identifier, errorCode));
}
void WebTransportSession::cancelSendStream(WebCore::WebTransportStreamIdentifier identifier, std::optional<WebCore::WebTransportStreamErrorCode> errorCode)
{
send(Messages::NetworkTransportSession::CancelSendStream(identifier, errorCode));
}
void WebTransportSession::destroyStream(WebCore::WebTransportStreamIdentifier identifier, std::optional<WebCore::WebTransportStreamErrorCode> errorCode)
{
send(Messages::NetworkTransportSession::DestroyStream(identifier, errorCode));
}
}
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