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/*
* Copyright (C) 2017 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 USE(LIBWEBRTC)
#include "Connection.h"
#include "DataReference.h"
#include "LibWebRTCResolverIdentifier.h"
#include "NetworkRTCMonitor.h"
#include "RTCNetwork.h"
#include "WebPageProxyIdentifier.h"
#include <WebCore/LibWebRTCMacros.h>
#include <WebCore/LibWebRTCSocketIdentifier.h>
#include <wtf/FunctionDispatcher.h>
#include <wtf/HashMap.h>
#include <wtf/StdMap.h>
#include <wtf/ThreadSafeRefCounted.h>
#include <wtf/UniqueRef.h>
#include <wtf/text/WTFString.h>
ALLOW_COMMA_BEGIN
#include <webrtc/p2p/base/basic_packet_socket_factory.h>
#include <webrtc/rtc_base/third_party/sigslot/sigslot.h>
ALLOW_COMMA_END
namespace IPC {
class Connection;
class Decoder;
}
namespace rtc {
class SocketAddress;
struct PacketOptions;
}
namespace WebCore {
class RegistrableDomain;
class FragmentedSharedBuffer;
}
namespace WebKit {
class NetworkConnectionToWebProcess;
class NetworkSession;
struct RTCPacketOptions;
struct SocketComparator {
bool operator()(const WebCore::LibWebRTCSocketIdentifier& a, const WebCore::LibWebRTCSocketIdentifier& b) const
{
return a.toUInt64() < b.toUInt64();
}
};
class NetworkRTCProvider : private FunctionDispatcher, private IPC::MessageReceiver, public ThreadSafeRefCounted<NetworkRTCProvider, WTF::DestructionThread::MainRunLoop> {
public:
static Ref<NetworkRTCProvider> create(NetworkConnectionToWebProcess& connection)
{
auto instance = adoptRef(*new NetworkRTCProvider(connection));
instance->startListeningForIPC();
return instance;
}
~NetworkRTCProvider();
void didReceiveNetworkRTCMonitorMessage(IPC::Connection& connection, IPC::Decoder& decoder) { m_rtcMonitor.didReceiveMessage(connection, decoder); }
class Socket {
public:
virtual ~Socket() = default;
enum class Type : uint8_t { UDP, ClientTCP, ServerConnectionTCP };
virtual Type type() const = 0;
virtual WebCore::LibWebRTCSocketIdentifier identifier() const = 0;
virtual void close() = 0;
virtual void setOption(int option, int value) = 0;
virtual void sendTo(const uint8_t*, size_t, const rtc::SocketAddress&, const rtc::PacketOptions&) = 0;
};
std::unique_ptr<Socket> takeSocket(WebCore::LibWebRTCSocketIdentifier);
void resolverDone(uint64_t);
void close();
void callOnRTCNetworkThread(Function<void()>&&);
void authorizeListeningSockets() { m_isListeningSocketAuthorized = true; }
IPC::Connection& connection() { return m_ipcConnection.get(); }
void closeSocket(WebCore::LibWebRTCSocketIdentifier);
void doSocketTaskOnRTCNetworkThread(WebCore::LibWebRTCSocketIdentifier, Function<void(Socket&)>&&);
#if PLATFORM(COCOA)
const std::optional<audit_token_t>& sourceApplicationAuditToken() const { return m_sourceApplicationAuditToken; }
const char* applicationBundleIdentifier() const { return m_applicationBundleIdentifier.data(); }
#endif
static rtc::Thread& rtcNetworkThread();
private:
explicit NetworkRTCProvider(NetworkConnectionToWebProcess&);
void startListeningForIPC();
void createUDPSocket(WebCore::LibWebRTCSocketIdentifier, const RTCNetwork::SocketAddress&, uint16_t, uint16_t, WebPageProxyIdentifier, bool isFirstParty, bool isRelayDisabled, WebCore::RegistrableDomain&&);
void createClientTCPSocket(WebCore::LibWebRTCSocketIdentifier, const RTCNetwork::SocketAddress&, const RTCNetwork::SocketAddress&, String&& userAgent, int, WebPageProxyIdentifier, bool isFirstParty, bool isRelayDisabled, WebCore::RegistrableDomain&&);
void wrapNewTCPConnection(WebCore::LibWebRTCSocketIdentifier identifier, WebCore::LibWebRTCSocketIdentifier newConnectionSocketIdentifier);
void sendToSocket(WebCore::LibWebRTCSocketIdentifier, const IPC::DataReference&, RTCNetwork::SocketAddress&&, RTCPacketOptions&&);
void setSocketOption(WebCore::LibWebRTCSocketIdentifier, int option, int value);
void setPlatformTCPSocketsEnabled(bool enabled) { m_platformTCPSocketsEnabled = enabled; }
void setPlatformUDPSocketsEnabled(bool enabled) { m_platformUDPSocketsEnabled = enabled; }
void createResolver(LibWebRTCResolverIdentifier, String&&);
void stopResolver(LibWebRTCResolverIdentifier);
void addSocket(WebCore::LibWebRTCSocketIdentifier, std::unique_ptr<Socket>&&);
void createSocket(WebCore::LibWebRTCSocketIdentifier, std::unique_ptr<rtc::AsyncPacketSocket>&&, Socket::Type, Ref<IPC::Connection>&&);
// FunctionDispatcher
void dispatch(Function<void()>&&) final;
// IPC::MessageReceiver
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
static rtc::ProxyInfo proxyInfoFromSession(const RTCNetwork::SocketAddress&, NetworkSession&);
#if PLATFORM(COCOA)
const String& attributedBundleIdentifierFromPageIdentifier(WebPageProxyIdentifier);
#endif
void signalSocketIsClosed(WebCore::LibWebRTCSocketIdentifier);
static constexpr size_t maxSockets { 256 };
StdMap<WebCore::LibWebRTCSocketIdentifier, std::unique_ptr<Socket>, SocketComparator> m_sockets;
WeakPtr<NetworkConnectionToWebProcess> m_connection;
Ref<IPC::Connection> m_ipcConnection;
bool m_isStarted { true };
NetworkRTCMonitor m_rtcMonitor;
rtc::Thread& m_rtcNetworkThread;
UniqueRef<rtc::BasicPacketSocketFactory> m_packetSocketFactory;
HashMap<WebCore::LibWebRTCSocketIdentifier, std::unique_ptr<rtc::AsyncPacketSocket>> m_pendingIncomingSockets;
bool m_isListeningSocketAuthorized { true };
bool m_platformTCPSocketsEnabled { false };
bool m_platformUDPSocketsEnabled { false };
#if PLATFORM(COCOA)
HashMap<WebPageProxyIdentifier, String> m_attributedBundleIdentifiers;
std::optional<audit_token_t> m_sourceApplicationAuditToken;
CString m_applicationBundleIdentifier;
#endif
};
} // namespace WebKit
#endif // USE(LIBWEBRTC)
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