1 files changed, 172 insertions, 0 deletions
diff --git a/Source/WebKit2/PluginProcess/WebProcessConnection.cpp b/Source/WebKit2/PluginProcess/WebProcessConnection.cpp
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+++ b/Source/WebKit2/PluginProcess/WebProcessConnection.cpp
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+/*
+ * Copyright (C) 2010 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if ENABLE(PLUGIN_PROCESS)
+
+#include "WebProcessConnection.h"
+
+#include "NPRemoteObjectMap.h"
+#include "PluginControllerProxy.h"
+#include "PluginProcess.h"
+#include "RunLoop.h"
+
+namespace WebKit {
+
+PassRefPtr<WebProcessConnection> WebProcessConnection::create(CoreIPC::Connection::Identifier connectionIdentifier)
+{
+    return adoptRef(new WebProcessConnection(connectionIdentifier));
+}
+
+WebProcessConnection::~WebProcessConnection()
+{
+    ASSERT(m_pluginControllers.isEmpty());
+    ASSERT(!m_npRemoteObjectMap);
+    ASSERT(!m_connection);
+}
+    
+WebProcessConnection::WebProcessConnection(CoreIPC::Connection::Identifier connectionIdentifier)
+{
+    m_connection = CoreIPC::Connection::createServerConnection(connectionIdentifier, this, RunLoop::main());
+    m_npRemoteObjectMap = NPRemoteObjectMap::create(m_connection.get());
+
+    m_connection->open();
+}
+
+void WebProcessConnection::addPluginControllerProxy(PassOwnPtr<PluginControllerProxy> pluginController)
+{
+    uint64_t pluginInstanceID = pluginController->pluginInstanceID();
+
+    ASSERT(!m_pluginControllers.contains(pluginInstanceID));
+    m_pluginControllers.set(pluginInstanceID, pluginController.leakPtr());
+}
+
+void WebProcessConnection::destroyPluginControllerProxy(PluginControllerProxy* pluginController)
+{
+    pluginController->destroy();
+    
+    // This will delete the plug-in controller proxy object.
+    removePluginControllerProxy(pluginController);
+}
+
+void WebProcessConnection::removePluginControllerProxy(PluginControllerProxy* pluginController)
+{
+    {
+        ASSERT(m_pluginControllers.contains(pluginController->pluginInstanceID()));
+
+        OwnPtr<PluginControllerProxy> pluginControllerOwnPtr = adoptPtr(m_pluginControllers.take(pluginController->pluginInstanceID()));
+        ASSERT(pluginControllerOwnPtr == pluginController);
+    }
+    
+    if (!m_pluginControllers.isEmpty())
+        return;
+
+    // Invalidate our remote object map.
+    m_npRemoteObjectMap->invalidate();
+    m_npRemoteObjectMap = nullptr;
+
+    // The last plug-in went away, close this connection.
+    m_connection->invalidate();
+    m_connection = nullptr;
+
+    // This will cause us to be deleted.    
+    PluginProcess::shared().removeWebProcessConnection(this);
+}
+
+void WebProcessConnection::didReceiveMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments)
+{
+    if (!arguments->destinationID()) {
+        ASSERT_NOT_REACHED();
+        return;
+    }
+    
+    if (PluginControllerProxy* pluginControllerProxy = m_pluginControllers.get(arguments->destinationID()))
+        pluginControllerProxy->didReceivePluginControllerProxyMessage(connection, messageID, arguments);
+}
+
+CoreIPC::SyncReplyMode WebProcessConnection::didReceiveSyncMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments, CoreIPC::ArgumentEncoder* reply)
+{
+    uint64_t destinationID = arguments->destinationID();
+
+    if (!destinationID)
+        return didReceiveSyncWebProcessConnectionMessage(connection, messageID, arguments, reply);
+
+    if (messageID.is<CoreIPC::MessageClassNPObjectMessageReceiver>())
+        return m_npRemoteObjectMap->didReceiveSyncMessage(connection, messageID, arguments, reply);
+
+    if (PluginControllerProxy* pluginControllerProxy = m_pluginControllers.get(destinationID))
+        return pluginControllerProxy->didReceiveSyncPluginControllerProxyMessage(connection, messageID, arguments, reply);
+
+    return CoreIPC::AutomaticReply;
+}
+
+void WebProcessConnection::didClose(CoreIPC::Connection*)
+{
+    // The web process crashed. Destroy all the plug-in controllers. Destroying the last plug-in controller
+    // will cause the web process connection itself to be destroyed.
+    Vector<PluginControllerProxy*> pluginControllers;
+    copyValuesToVector(m_pluginControllers, pluginControllers);
+
+    for (size_t i = 0; i < pluginControllers.size(); ++i)
+        destroyPluginControllerProxy(pluginControllers[i]);
+}
+
+void WebProcessConnection::destroyPlugin(uint64_t pluginInstanceID)
+{
+    PluginControllerProxy* pluginControllerProxy = m_pluginControllers.get(pluginInstanceID);
+    ASSERT(pluginControllerProxy);
+
+    destroyPluginControllerProxy(pluginControllerProxy);
+}
+
+void WebProcessConnection::didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::MessageID)
+{
+    // FIXME: Implement.
+}
+
+void WebProcessConnection::createPlugin(uint64_t pluginInstanceID, const Plugin::Parameters& parameters, const String& userAgent, bool isPrivateBrowsingEnabled, bool isAcceleratedCompositingEnabled, bool& result, uint32_t& remoteLayerClientID)
+{
+    OwnPtr<PluginControllerProxy> pluginControllerProxy = PluginControllerProxy::create(this, pluginInstanceID, userAgent, isPrivateBrowsingEnabled, isAcceleratedCompositingEnabled);
+
+    PluginControllerProxy* pluginControllerProxyPtr = pluginControllerProxy.get();
+
+    // Make sure to add the proxy to the map before initializing it, since the plug-in might call out to the web process from 
+    // its NPP_New function. This will hand over ownership of the proxy to the web process connection.
+    addPluginControllerProxy(pluginControllerProxy.release());
+
+    // Now try to initialize the plug-in.
+    result = pluginControllerProxyPtr->initialize(parameters);
+
+    if (result) {
+        remoteLayerClientID = pluginControllerProxyPtr->remoteLayerClientID();
+        return;
+    }
+
+    // We failed to initialize, remove the plug-in controller. This could cause us to be deleted.
+    removePluginControllerProxy(pluginControllerProxyPtr);
+}
+
+} // namespace WebKit
+
+#endif // ENABLE(PLUGIN_PROCESS)