1/*
2 * Copyright (C) 2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "LibWebRTCSocketClient.h"
28
29#if USE(LIBWEBRTC)
30
31#include "Connection.h"
32#include "DataReference.h"
33#include "NetworkRTCProvider.h"
34#include "WebRTCSocketMessages.h"
35#include <WebCore/SharedBuffer.h>
36#include <wtf/Function.h>
37
38namespace WebKit {
39
40LibWebRTCSocketClient::LibWebRTCSocketClient(uint64_t identifier, NetworkRTCProvider& rtcProvider, std::unique_ptr<rtc::AsyncPacketSocket>&& socket, Type type)
41 : m_identifier(identifier)
42 , m_type(type)
43 , m_rtcProvider(rtcProvider)
44 , m_socket(WTFMove(socket))
45{
46 ASSERT(m_socket);
47
48 m_socket->SignalReadPacket.connect(this, &LibWebRTCSocketClient::signalReadPacket);
49 m_socket->SignalSentPacket.connect(this, &LibWebRTCSocketClient::signalSentPacket);
50 m_socket->SignalClose.connect(this, &LibWebRTCSocketClient::signalClose);
51
52 switch (type) {
53 case Type::ServerConnectionTCP:
54 return;
55 case Type::ClientTCP:
56 m_socket->SignalConnect.connect(this, &LibWebRTCSocketClient::signalConnect);
57 m_socket->SignalAddressReady.connect(this, &LibWebRTCSocketClient::signalAddressReady);
58 return;
59 case Type::ServerTCP:
60 m_socket->SignalConnect.connect(this, &LibWebRTCSocketClient::signalConnect);
61 m_socket->SignalNewConnection.connect(this, &LibWebRTCSocketClient::signalNewConnection);
62 signalAddressReady();
63 return;
64 case Type::UDP:
65 m_socket->SignalConnect.connect(this, &LibWebRTCSocketClient::signalConnect);
66 signalAddressReady();
67 return;
68 }
69}
70
71void LibWebRTCSocketClient::sendTo(const WebCore::SharedBuffer& buffer, const rtc::SocketAddress& socketAddress, const rtc::PacketOptions& options)
72{
73 m_socket->SendTo(reinterpret_cast<const uint8_t*>(buffer.data()), buffer.size(), socketAddress, options);
74}
75
76void LibWebRTCSocketClient::close()
77{
78 ASSERT(m_socket);
79 m_socket->Close();
80 m_rtcProvider.takeSocket(m_identifier);
81}
82
83void LibWebRTCSocketClient::setOption(int option, int value)
84{
85 ASSERT(m_socket);
86 m_socket->SetOption(static_cast<rtc::Socket::Option>(option), value);
87}
88
89void LibWebRTCSocketClient::signalReadPacket(rtc::AsyncPacketSocket* socket, const char* value, size_t length, const rtc::SocketAddress& address, const rtc::PacketTime& packetTime)
90{
91 ASSERT_UNUSED(socket, m_socket.get() == socket);
92 auto buffer = WebCore::SharedBuffer::create(value, length);
93 m_rtcProvider.sendFromMainThread([identifier = m_identifier, buffer = WTFMove(buffer), address = RTCNetwork::isolatedCopy(address), packetTime](IPC::Connection& connection) {
94 IPC::DataReference data(reinterpret_cast<const uint8_t*>(buffer->data()), buffer->size());
95 connection.send(Messages::WebRTCSocket::SignalReadPacket(data, RTCNetwork::IPAddress(address.ipaddr()), address.port(), packetTime), identifier);
96 });
97}
98
99void LibWebRTCSocketClient::signalSentPacket(rtc::AsyncPacketSocket* socket, const rtc::SentPacket& sentPacket)
100{
101 ASSERT_UNUSED(socket, m_socket.get() == socket);
102 m_rtcProvider.sendFromMainThread([identifier = m_identifier, sentPacket](IPC::Connection& connection) {
103 connection.send(Messages::WebRTCSocket::SignalSentPacket(sentPacket.packet_id, sentPacket.send_time_ms), identifier);
104 });
105}
106
107void LibWebRTCSocketClient::signalNewConnection(rtc::AsyncPacketSocket* socket, rtc::AsyncPacketSocket* newSocket)
108{
109 ASSERT_UNUSED(socket, m_socket.get() == socket);
110 m_rtcProvider.newConnection(*this, std::unique_ptr<rtc::AsyncPacketSocket>(newSocket));
111}
112
113void LibWebRTCSocketClient::signalAddressReady(rtc::AsyncPacketSocket* socket, const rtc::SocketAddress& address)
114{
115 ASSERT_UNUSED(socket, m_socket.get() == socket);
116 m_rtcProvider.sendFromMainThread([identifier = m_identifier, address = RTCNetwork::isolatedCopy(address)](IPC::Connection& connection) {
117 connection.send(Messages::WebRTCSocket::SignalAddressReady(RTCNetwork::SocketAddress(address)), identifier);
118 });
119}
120
121void LibWebRTCSocketClient::signalAddressReady()
122{
123 signalAddressReady(m_socket.get(), m_socket->GetLocalAddress());
124}
125
126void LibWebRTCSocketClient::signalConnect(rtc::AsyncPacketSocket* socket)
127{
128 ASSERT_UNUSED(socket, m_socket.get() == socket);
129 m_rtcProvider.sendFromMainThread([identifier = m_identifier](IPC::Connection& connection) {
130 connection.send(Messages::WebRTCSocket::SignalConnect(), identifier);
131 });
132}
133
134void LibWebRTCSocketClient::signalClose(rtc::AsyncPacketSocket* socket, int error)
135{
136 ASSERT_UNUSED(socket, m_socket.get() == socket);
137 m_rtcProvider.sendFromMainThread([identifier = m_identifier, error](IPC::Connection& connection) {
138 connection.send(Messages::WebRTCSocket::SignalClose(error), identifier);
139 });
140 // We want to remove 'this' from the socket map now but we will destroy it asynchronously
141 // so that the socket parameter of signalClose remains alive as the caller of signalClose may actually being using it afterwards.
142 m_rtcProvider.callOnRTCNetworkThread([socket = m_rtcProvider.takeSocket(m_identifier)] { });
143}
144
145} // namespace WebKit
146
147#endif // USE(LIBWEBRTC)
148