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 "WebRTCMonitor.h"
28
29#if USE(LIBWEBRTC)
30
31#include "NetworkConnectionToWebProcessMessages.h"
32#include "NetworkProcessConnection.h"
33#include "NetworkRTCMonitorMessages.h"
34#include "WebProcess.h"
35#include <WebCore/LibWebRTCMacros.h>
36#include <webrtc/rtc_base/nethelpers.h>
37#include <wtf/MainThread.h>
38
39namespace WebKit {
40
41void WebRTCMonitor::sendOnMainThread(Function<void(IPC::Connection&)>&& callback)
42{
43 callOnMainThread([callback = WTFMove(callback)]() {
44 callback(WebProcess::singleton().ensureNetworkProcessConnection().connection());
45 });
46}
47
48void WebRTCMonitor::StartUpdating()
49{
50 if (m_clientCount) {
51 // Need to signal new client that we already have the network list, let's do it asynchronously
52 if (m_receivedNetworkList) {
53 WebCore::LibWebRTCProvider::callOnWebRTCNetworkThread([this] {
54 SignalNetworksChanged();
55 });
56 }
57 } else {
58 m_receivedNetworkList = false;
59 sendOnMainThread([](IPC::Connection& connection) {
60 connection.send(Messages::NetworkRTCMonitor::StartUpdating(), 0);
61 });
62 }
63 ++m_clientCount;
64}
65
66void WebRTCMonitor::StopUpdating()
67{
68 ASSERT(m_clientCount);
69 if (--m_clientCount)
70 return;
71
72 sendOnMainThread([](IPC::Connection& connection) {
73 connection.send(Messages::NetworkRTCMonitor::StopUpdating(), 0);
74 });
75}
76
77void WebRTCMonitor::networksChanged(const Vector<RTCNetwork>& networks, const RTCNetwork::IPAddress& ipv4, const RTCNetwork::IPAddress& ipv6)
78{
79 // No need to protect 'this' as it has the lifetime of LibWebRTC which has the lifetime of the web process.
80 WebCore::LibWebRTCProvider::callOnWebRTCNetworkThread([this, networks, ipv4, ipv6] {
81 std::vector<rtc::Network*> networkList(networks.size());
82 for (size_t index = 0; index < networks.size(); ++index)
83 networkList[index] = new rtc::Network(networks[index].value());
84
85 bool forceSignaling = !m_receivedNetworkList;
86 m_receivedNetworkList = true;
87
88 bool hasChanged;
89 set_default_local_addresses(ipv4.value, ipv6.value);
90 MergeNetworkList(networkList, &hasChanged);
91 if (hasChanged || forceSignaling)
92 SignalNetworksChanged();
93
94 });
95}
96
97} // namespace WebKit
98
99#endif // USE(LIBWEBRTC)
100