1/*
2 * Copyright (C) 2010-2018 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 "PluginProcessConnectionManager.h"
28
29#if ENABLE(NETSCAPE_PLUGIN_API)
30
31#include "Decoder.h"
32#include "Encoder.h"
33#include "PluginProcessConnection.h"
34#include "PluginProcessConnectionManagerMessages.h"
35#include "WebCoreArgumentCoders.h"
36#include "WebProcess.h"
37#include "WebProcessProxyMessages.h"
38
39#if OS(DARWIN) && !USE(UNIX_DOMAIN_SOCKETS)
40#include "MachPort.h"
41#endif
42
43namespace WebKit {
44
45Ref<PluginProcessConnectionManager> PluginProcessConnectionManager::create()
46{
47 return adoptRef(*new PluginProcessConnectionManager);
48}
49
50PluginProcessConnectionManager::PluginProcessConnectionManager()
51 : m_queue(WorkQueue::create("com.apple.WebKit.PluginProcessConnectionManager"))
52{
53}
54
55PluginProcessConnectionManager::~PluginProcessConnectionManager()
56{
57}
58
59void PluginProcessConnectionManager::initializeConnection(IPC::Connection* connection)
60{
61 connection->addWorkQueueMessageReceiver(Messages::PluginProcessConnectionManager::messageReceiverName(), m_queue.get(), this);
62}
63
64PluginProcessConnection* PluginProcessConnectionManager::getPluginProcessConnection(uint64_t pluginProcessToken)
65{
66 for (size_t i = 0; i < m_pluginProcessConnections.size(); ++i) {
67 if (m_pluginProcessConnections[i]->pluginProcessToken() == pluginProcessToken)
68 return m_pluginProcessConnections[i].get();
69 }
70
71 IPC::Attachment encodedConnectionIdentifier;
72 bool supportsAsynchronousInitialization;
73 if (!WebProcess::singleton().parentProcessConnection()->sendSync(Messages::WebProcessProxy::GetPluginProcessConnection(pluginProcessToken),
74 Messages::WebProcessProxy::GetPluginProcessConnection::Reply(encodedConnectionIdentifier, supportsAsynchronousInitialization), 0))
75 return nullptr;
76
77#if USE(UNIX_DOMAIN_SOCKETS)
78 IPC::Connection::Identifier connectionIdentifier = encodedConnectionIdentifier.releaseFileDescriptor();
79#elif OS(DARWIN)
80 IPC::Connection::Identifier connectionIdentifier(encodedConnectionIdentifier.port());
81#elif OS(WINDOWS)
82 IPC::Connection::Identifier connectionIdentifier = encodedConnectionIdentifier.handle();
83#endif
84 if (!IPC::Connection::identifierIsValid(connectionIdentifier))
85 return nullptr;
86
87 auto pluginProcessConnection = PluginProcessConnection::create(this, pluginProcessToken, connectionIdentifier, supportsAsynchronousInitialization);
88 m_pluginProcessConnections.append(pluginProcessConnection.copyRef());
89
90 {
91 LockHolder locker(m_tokensAndConnectionsMutex);
92 ASSERT(!m_tokensAndConnections.contains(pluginProcessToken));
93
94 m_tokensAndConnections.set(pluginProcessToken, pluginProcessConnection->connection());
95 }
96
97 return pluginProcessConnection.ptr();
98}
99
100void PluginProcessConnectionManager::removePluginProcessConnection(PluginProcessConnection* pluginProcessConnection)
101{
102 size_t vectorIndex = m_pluginProcessConnections.find(pluginProcessConnection);
103 ASSERT(vectorIndex != notFound);
104
105 {
106 LockHolder locker(m_tokensAndConnectionsMutex);
107 ASSERT(m_tokensAndConnections.contains(pluginProcessConnection->pluginProcessToken()));
108
109 m_tokensAndConnections.remove(pluginProcessConnection->pluginProcessToken());
110 }
111
112 m_pluginProcessConnections.remove(vectorIndex);
113}
114
115void PluginProcessConnectionManager::pluginProcessCrashed(uint64_t pluginProcessToken)
116{
117 LockHolder locker(m_tokensAndConnectionsMutex);
118 IPC::Connection* connection = m_tokensAndConnections.get(pluginProcessToken);
119
120 // It's OK for connection to be null here; it will happen if this web process doesn't know
121 // anything about the plug-in process.
122 if (!connection)
123 return;
124
125 connection->postConnectionDidCloseOnConnectionWorkQueue();
126}
127
128} // namespace WebKit
129
130#endif // ENABLE(NETSCAPE_PLUGIN_API)
131