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 "WebProcessConnection.h"
28
29 #if ENABLE(PLUGIN_PROCESS)
30
31 #include "NPRemoteObjectMap.h"
32 #include "PluginControllerProxy.h"
33 #include "PluginProcess.h"
34 #include "RunLoop.h"
35
36 namespace WebKit {
37
create(CoreIPC::Connection::Identifier connectionIdentifier)38 PassRefPtr<WebProcessConnection> WebProcessConnection::create(CoreIPC::Connection::Identifier connectionIdentifier)
39 {
40 return adoptRef(new WebProcessConnection(connectionIdentifier));
41 }
42
~WebProcessConnection()43 WebProcessConnection::~WebProcessConnection()
44 {
45 ASSERT(m_pluginControllers.isEmpty());
46 ASSERT(!m_npRemoteObjectMap);
47 ASSERT(!m_connection);
48 }
49
WebProcessConnection(CoreIPC::Connection::Identifier connectionIdentifier)50 WebProcessConnection::WebProcessConnection(CoreIPC::Connection::Identifier connectionIdentifier)
51 {
52 m_connection = CoreIPC::Connection::createServerConnection(connectionIdentifier, this, RunLoop::main());
53 m_npRemoteObjectMap = NPRemoteObjectMap::create(m_connection.get());
54
55 m_connection->setOnlySendMessagesAsDispatchWhenWaitingForSyncReplyWhenProcessingSuchAMessage(true);
56 m_connection->open();
57 }
58
addPluginControllerProxy(PassOwnPtr<PluginControllerProxy> pluginController)59 void WebProcessConnection::addPluginControllerProxy(PassOwnPtr<PluginControllerProxy> pluginController)
60 {
61 uint64_t pluginInstanceID = pluginController->pluginInstanceID();
62
63 ASSERT(!m_pluginControllers.contains(pluginInstanceID));
64 m_pluginControllers.set(pluginInstanceID, pluginController.leakPtr());
65 }
66
destroyPluginControllerProxy(PluginControllerProxy * pluginController)67 void WebProcessConnection::destroyPluginControllerProxy(PluginControllerProxy* pluginController)
68 {
69 // This may end up calling removePluginControllerProxy which ends up deleting
70 // the WebProcessConnection object if this was the last object.
71 pluginController->destroy();
72 }
73
removePluginControllerProxy(PluginControllerProxy * pluginController,Plugin * plugin)74 void WebProcessConnection::removePluginControllerProxy(PluginControllerProxy* pluginController, Plugin* plugin)
75 {
76 {
77 ASSERT(m_pluginControllers.contains(pluginController->pluginInstanceID()));
78
79 OwnPtr<PluginControllerProxy> pluginControllerOwnPtr = adoptPtr(m_pluginControllers.take(pluginController->pluginInstanceID()));
80 ASSERT(pluginControllerOwnPtr == pluginController);
81 }
82
83 // Invalidate all objects related to this plug-in.
84 if (plugin)
85 m_npRemoteObjectMap->pluginDestroyed(plugin);
86
87 if (!m_pluginControllers.isEmpty())
88 return;
89
90 m_npRemoteObjectMap = nullptr;
91
92 // The last plug-in went away, close this connection.
93 m_connection->invalidate();
94 m_connection = nullptr;
95
96 // This will cause us to be deleted.
97 PluginProcess::shared().removeWebProcessConnection(this);
98 }
99
didReceiveMessage(CoreIPC::Connection * connection,CoreIPC::MessageID messageID,CoreIPC::ArgumentDecoder * arguments)100 void WebProcessConnection::didReceiveMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments)
101 {
102 if (!arguments->destinationID()) {
103 ASSERT_NOT_REACHED();
104 return;
105 }
106
107 PluginControllerProxy* pluginControllerProxy = m_pluginControllers.get(arguments->destinationID());
108 if (!pluginControllerProxy)
109 return;
110
111 PluginController::PluginDestructionProtector protector(pluginControllerProxy->asPluginController());
112
113 pluginControllerProxy->didReceivePluginControllerProxyMessage(connection, messageID, arguments);
114 }
115
didReceiveSyncMessage(CoreIPC::Connection * connection,CoreIPC::MessageID messageID,CoreIPC::ArgumentDecoder * arguments,CoreIPC::ArgumentEncoder * reply)116 CoreIPC::SyncReplyMode WebProcessConnection::didReceiveSyncMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments, CoreIPC::ArgumentEncoder* reply)
117 {
118 uint64_t destinationID = arguments->destinationID();
119
120 if (!destinationID)
121 return didReceiveSyncWebProcessConnectionMessage(connection, messageID, arguments, reply);
122
123 if (messageID.is<CoreIPC::MessageClassNPObjectMessageReceiver>())
124 return m_npRemoteObjectMap->didReceiveSyncMessage(connection, messageID, arguments, reply);
125
126 PluginControllerProxy* pluginControllerProxy = m_pluginControllers.get(arguments->destinationID());
127 if (!pluginControllerProxy)
128 return CoreIPC::AutomaticReply;
129
130 PluginController::PluginDestructionProtector protector(pluginControllerProxy->asPluginController());
131 CoreIPC::SyncReplyMode replyMode = pluginControllerProxy->didReceiveSyncPluginControllerProxyMessage(connection, messageID, arguments, reply);
132
133 return replyMode;
134 }
135
didClose(CoreIPC::Connection *)136 void WebProcessConnection::didClose(CoreIPC::Connection*)
137 {
138 // The web process crashed. Destroy all the plug-in controllers. Destroying the last plug-in controller
139 // will cause the web process connection itself to be destroyed.
140 Vector<PluginControllerProxy*> pluginControllers;
141 copyValuesToVector(m_pluginControllers, pluginControllers);
142
143 for (size_t i = 0; i < pluginControllers.size(); ++i)
144 destroyPluginControllerProxy(pluginControllers[i]);
145 }
146
destroyPlugin(uint64_t pluginInstanceID)147 void WebProcessConnection::destroyPlugin(uint64_t pluginInstanceID)
148 {
149 PluginControllerProxy* pluginControllerProxy = m_pluginControllers.get(pluginInstanceID);
150 ASSERT(pluginControllerProxy);
151
152 destroyPluginControllerProxy(pluginControllerProxy);
153 }
154
didReceiveInvalidMessage(CoreIPC::Connection *,CoreIPC::MessageID)155 void WebProcessConnection::didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::MessageID)
156 {
157 // FIXME: Implement.
158 }
159
syncMessageSendTimedOut(CoreIPC::Connection *)160 void WebProcessConnection::syncMessageSendTimedOut(CoreIPC::Connection*)
161 {
162 }
163
createPlugin(uint64_t pluginInstanceID,const Plugin::Parameters & parameters,const String & userAgent,bool isPrivateBrowsingEnabled,bool isAcceleratedCompositingEnabled,bool & result,uint32_t & remoteLayerClientID)164 void WebProcessConnection::createPlugin(uint64_t pluginInstanceID, const Plugin::Parameters& parameters, const String& userAgent, bool isPrivateBrowsingEnabled, bool isAcceleratedCompositingEnabled, bool& result, uint32_t& remoteLayerClientID)
165 {
166 OwnPtr<PluginControllerProxy> pluginControllerProxy = PluginControllerProxy::create(this, pluginInstanceID, userAgent, isPrivateBrowsingEnabled, isAcceleratedCompositingEnabled);
167
168 PluginControllerProxy* pluginControllerProxyPtr = pluginControllerProxy.get();
169
170 // Make sure to add the proxy to the map before initializing it, since the plug-in might call out to the web process from
171 // its NPP_New function. This will hand over ownership of the proxy to the web process connection.
172 addPluginControllerProxy(pluginControllerProxy.release());
173
174 // Now try to initialize the plug-in.
175 result = pluginControllerProxyPtr->initialize(parameters);
176
177 if (!result)
178 return;
179
180 #if PLATFORM(MAC)
181 remoteLayerClientID = pluginControllerProxyPtr->remoteLayerClientID();
182 #endif
183 }
184
185 } // namespace WebKit
186
187 #endif // ENABLE(PLUGIN_PROCESS)
188