1 /*
2 * Copyright (C) 2010 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 "PluginProcessConnection.h"
28
29 #if ENABLE(PLUGIN_PROCESS)
30
31 #include "NPRemoteObjectMap.h"
32 #include "PluginProcessConnectionManager.h"
33 #include "PluginProxy.h"
34 #include "WebProcess.h"
35 #include "WebProcessProxyMessages.h"
36 #include <WebCore/FileSystem.h>
37
38 using namespace WebCore;
39
40 namespace WebKit {
41
42 // The timeout, in seconds, when sending sync messages to the plug-in.
43 static const double syncMessageTimeout = 45;
44
defaultSyncMessageTimeout(const String & pluginPath)45 static double defaultSyncMessageTimeout(const String& pluginPath)
46 {
47 // We don't want a message timeout for the AppleConnect plug-in.
48 // FIXME: We should key this off something other than the path.
49 if (pathGetFileName(pluginPath) == "AppleConnect.plugin")
50 return CoreIPC::Connection::NoTimeout;
51
52 return syncMessageTimeout;
53 }
54
PluginProcessConnection(PluginProcessConnectionManager * pluginProcessConnectionManager,const String & pluginPath,CoreIPC::Connection::Identifier connectionIdentifier)55 PluginProcessConnection::PluginProcessConnection(PluginProcessConnectionManager* pluginProcessConnectionManager, const String& pluginPath, CoreIPC::Connection::Identifier connectionIdentifier)
56 : m_pluginProcessConnectionManager(pluginProcessConnectionManager)
57 , m_pluginPath(pluginPath)
58 {
59 m_connection = CoreIPC::Connection::createClientConnection(connectionIdentifier, this, WebProcess::shared().runLoop());
60
61 m_connection->setDefaultSyncMessageTimeout(defaultSyncMessageTimeout(m_pluginPath));
62 m_npRemoteObjectMap = NPRemoteObjectMap::create(m_connection.get());
63
64 m_connection->open();
65 }
66
~PluginProcessConnection()67 PluginProcessConnection::~PluginProcessConnection()
68 {
69 ASSERT(!m_connection);
70 ASSERT(!m_npRemoteObjectMap);
71 }
72
addPluginProxy(PluginProxy * plugin)73 void PluginProcessConnection::addPluginProxy(PluginProxy* plugin)
74 {
75 ASSERT(!m_plugins.contains(plugin->pluginInstanceID()));
76 m_plugins.set(plugin->pluginInstanceID(), plugin);
77 }
78
removePluginProxy(PluginProxy * plugin)79 void PluginProcessConnection::removePluginProxy(PluginProxy* plugin)
80 {
81 ASSERT(m_plugins.contains(plugin->pluginInstanceID()));
82 m_plugins.remove(plugin->pluginInstanceID());
83
84 // Invalidate all objects related to this plug-in.
85 m_npRemoteObjectMap->pluginDestroyed(plugin);
86
87 if (!m_plugins.isEmpty())
88 return;
89
90 m_npRemoteObjectMap = nullptr;
91
92 // We have no more plug-ins, invalidate the connection to the plug-in process.
93 ASSERT(m_connection);
94 m_connection->invalidate();
95 m_connection = nullptr;
96
97 // This will cause us to be deleted.
98 m_pluginProcessConnectionManager->removePluginProcessConnection(this);
99 }
100
didReceiveMessage(CoreIPC::Connection * connection,CoreIPC::MessageID messageID,CoreIPC::ArgumentDecoder * arguments)101 void PluginProcessConnection::didReceiveMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments)
102 {
103 if (arguments->destinationID()) {
104 if (PluginProxy* pluginProxy = m_plugins.get(arguments->destinationID()))
105 pluginProxy->didReceivePluginProxyMessage(connection, messageID, arguments);
106 return;
107 }
108
109 ASSERT_NOT_REACHED();
110 }
111
didReceiveSyncMessage(CoreIPC::Connection * connection,CoreIPC::MessageID messageID,CoreIPC::ArgumentDecoder * arguments,CoreIPC::ArgumentEncoder * reply)112 CoreIPC::SyncReplyMode PluginProcessConnection::didReceiveSyncMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments, CoreIPC::ArgumentEncoder* reply)
113 {
114 if (messageID.is<CoreIPC::MessageClassNPObjectMessageReceiver>())
115 return m_npRemoteObjectMap->didReceiveSyncMessage(connection, messageID, arguments, reply);
116
117 if (PluginProxy* pluginProxy = m_plugins.get(arguments->destinationID()))
118 return pluginProxy->didReceiveSyncPluginProxyMessage(connection, messageID, arguments, reply);
119
120 ASSERT_NOT_REACHED();
121 return CoreIPC::AutomaticReply;
122 }
123
didClose(CoreIPC::Connection *)124 void PluginProcessConnection::didClose(CoreIPC::Connection*)
125 {
126 // The plug-in process must have crashed.
127 for (HashMap<uint64_t, PluginProxy*>::const_iterator::Values it = m_plugins.begin().values(), end = m_plugins.end().values(); it != end; ++it) {
128 PluginProxy* pluginProxy = (*it);
129
130 pluginProxy->pluginProcessCrashed();
131 }
132 }
133
didReceiveInvalidMessage(CoreIPC::Connection *,CoreIPC::MessageID)134 void PluginProcessConnection::didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::MessageID)
135 {
136 }
137
syncMessageSendTimedOut(CoreIPC::Connection *)138 void PluginProcessConnection::syncMessageSendTimedOut(CoreIPC::Connection*)
139 {
140 WebProcess::shared().connection()->send(Messages::WebProcessProxy::PluginSyncMessageSendTimedOut(m_pluginPath), 0);
141 }
142
143 } // namespace WebKit
144
145 #endif // ENABLE(PLUGIN_PROCESS)
146