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 "LibWebRTCResolver.h"
28
29#if USE(LIBWEBRTC)
30
31#include "LibWebRTCNetwork.h"
32#include "NetworkProcessConnection.h"
33#include "NetworkRTCProviderMessages.h"
34#include "WebProcess.h"
35#include <wtf/MainThread.h>
36
37namespace WebKit {
38
39void LibWebRTCResolver::sendOnMainThread(Function<void(IPC::Connection&)>&& callback)
40{
41 callOnMainThread([callback = WTFMove(callback)]() {
42 callback(WebProcess::singleton().ensureNetworkProcessConnection().connection());
43 });
44}
45
46void LibWebRTCResolver::Start(const rtc::SocketAddress& address)
47{
48 m_isResolving = true;
49 m_addressToResolve = address;
50 m_port = address.port();
51 auto identifier = m_identifier;
52 sendOnMainThread([identifier, address](IPC::Connection& connection) {
53 auto addressString = address.HostAsURIString();
54 connection.send(Messages::NetworkRTCProvider::CreateResolver(identifier, String(addressString.data(), addressString.length())), 0);
55 });
56}
57
58bool LibWebRTCResolver::GetResolvedAddress(int family, rtc::SocketAddress* address) const
59{
60 ASSERT(address);
61 if (m_error || !m_addresses.size())
62 return false;
63
64 *address = m_addressToResolve;
65 for (auto& ipAddress : m_addresses) {
66 if (family == ipAddress.family()) {
67 address->SetResolvedIP(ipAddress);
68 address->SetPort(m_port);
69 return true;
70 }
71 }
72 return false;
73}
74
75void LibWebRTCResolver::Destroy(bool)
76{
77 if (!isResolving())
78 return;
79
80 if (m_isProvidingResults) {
81 m_shouldDestroy = true;
82 return;
83 }
84
85 auto identifier = m_identifier;
86 sendOnMainThread([identifier](IPC::Connection& connection) {
87 connection.send(Messages::NetworkRTCProvider::StopResolver(identifier), 0);
88 });
89
90 doDestroy();
91}
92
93void LibWebRTCResolver::doDestroy()
94{
95 // Let's take the resolver so that it gets destroyed at the end of this function.
96 auto resolver = WebProcess::singleton().libWebRTCNetwork().socketFactory().takeResolver(m_identifier);
97 ASSERT(resolver);
98}
99
100void LibWebRTCResolver::setResolvedAddress(const Vector<rtc::IPAddress>& addresses)
101{
102 m_addresses = addresses;
103 m_isProvidingResults = true;
104 SignalDone(this);
105 m_isProvidingResults = false;
106 if (m_shouldDestroy)
107 doDestroy();
108}
109
110void LibWebRTCResolver::setError(int error)
111{
112 m_error = error;
113 m_isProvidingResults = true;
114 SignalDone(this);
115 m_isProvidingResults = false;
116 if (m_shouldDestroy)
117 doDestroy();
118}
119
120} // namespace WebKit
121
122#endif // USE(LIBWEBRTC)
123