Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 178 insertions, 0 deletions

diff --git a/Source/WebKit2/WebProcess/Plugins/PluginProcessConnection.cpp b/Source/WebKit2/WebProcess/Plugins/PluginProcessConnection.cpp
new file mode 100644
index 000000000..b2152713b
--- /dev/null
+++ b/Source/WebKit2/WebProcess/Plugins/PluginProcessConnection.cpp
@@ -0,0 +1,178 @@
+/*
+ * 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.
+ */
+
+#include "config.h"
+#include "PluginProcessConnection.h"
+
+#if ENABLE(PLUGIN_PROCESS)
+
+#include "NPRemoteObjectMap.h"
+#include "NPRuntimeObjectMap.h"
+#include "PluginProcessConnectionManager.h"
+#include "PluginProxy.h"
+#include "WebProcess.h"
+#include "WebProcessProxyMessages.h"
+#include <WebCore/FileSystem.h>
+
+using namespace WebCore;
+
+namespace WebKit {
+
+// The timeout, in seconds, when sending sync messages to the plug-in.
+static const double syncMessageTimeout = 45;
+
+static double defaultSyncMessageTimeout(const String& pluginPath)
+{
+    // FIXME: We should key this off something other than the path.
+
+    // We don't want a message timeout for the AppleConnect plug-in.
+    if (pathGetFileName(pluginPath) == "AppleConnect.plugin")
+        return CoreIPC::Connection::NoTimeout;
+
+    // We don't want a message timeout for the Microsoft SharePoint plug-in
+    // since it can spin a nested run loop in response to an NPN_Invoke, making it seem like
+    // the plug-in process is hung. See <rdar://problem/9536303>.
+    // FIXME: Instead of changing the default sync message timeout, CoreIPC could send an
+    // asynchronous message which the other process would have to reply to on the main thread.
+    // This way we could check if the plug-in process is actually hung or not.
+    if (pathGetFileName(pluginPath) == "SharePointBrowserPlugin.plugin")
+        return CoreIPC::Connection::NoTimeout;
+
+    // We don't want a message timeout for the BankID plug-in since it can spin a nested
+    // run loop when it's waiting for a reply to an AppleEvent.
+    if (pathGetFileName(pluginPath) == "PersonalPlugin.bundle")
+        return CoreIPC::Connection::NoTimeout;
+
+    if (WebProcess::shared().disablePluginProcessMessageTimeout())
+        return CoreIPC::Connection::NoTimeout;
+
+    return syncMessageTimeout;
+}
+
+PluginProcessConnection::PluginProcessConnection(PluginProcessConnectionManager* pluginProcessConnectionManager, const String& pluginPath, CoreIPC::Connection::Identifier connectionIdentifier)
+    : m_pluginProcessConnectionManager(pluginProcessConnectionManager)
+    , m_pluginPath(pluginPath)
+{
+    m_connection = CoreIPC::Connection::createClientConnection(connectionIdentifier, this, WebProcess::shared().runLoop());
+
+    m_connection->setDefaultSyncMessageTimeout(defaultSyncMessageTimeout(m_pluginPath));
+    m_npRemoteObjectMap = NPRemoteObjectMap::create(m_connection.get());
+
+    m_connection->open();
+}
+
+PluginProcessConnection::~PluginProcessConnection()
+{
+    ASSERT(!m_connection);
+    ASSERT(!m_npRemoteObjectMap);
+}
+
+void PluginProcessConnection::addPluginProxy(PluginProxy* plugin)
+{
+    ASSERT(!m_plugins.contains(plugin->pluginInstanceID()));
+    m_plugins.set(plugin->pluginInstanceID(), plugin);
+}
+
+void PluginProcessConnection::removePluginProxy(PluginProxy* plugin)
+{
+    ASSERT(m_plugins.contains(plugin->pluginInstanceID()));
+    m_plugins.remove(plugin->pluginInstanceID());
+
+    // Invalidate all objects related to this plug-in.
+    m_npRemoteObjectMap->pluginDestroyed(plugin);
+
+    if (!m_plugins.isEmpty())
+        return;
+
+    m_npRemoteObjectMap = nullptr;
+
+    // We have no more plug-ins, invalidate the connection to the plug-in process.
+    ASSERT(m_connection);
+    m_connection->invalidate();
+    m_connection = nullptr;
+
+    // This will cause us to be deleted.
+    m_pluginProcessConnectionManager->removePluginProcessConnection(this);
+}
+
+void PluginProcessConnection::didReceiveMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments)
+{
+    ASSERT(arguments->destinationID());
+
+    PluginProxy* pluginProxy = m_plugins.get(arguments->destinationID());
+    if (!pluginProxy)
+        return;
+
+    pluginProxy->didReceivePluginProxyMessage(connection, messageID, arguments);
+}
+
+void PluginProcessConnection::didReceiveSyncMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments, OwnPtr<CoreIPC::ArgumentEncoder>& reply)
+{
+    if (messageID.is<CoreIPC::MessageClassNPObjectMessageReceiver>()) {
+        m_npRemoteObjectMap->didReceiveSyncMessage(connection, messageID, arguments, reply);
+        return;
+    }
+
+    uint64_t destinationID = arguments->destinationID();
+
+    if (!destinationID) {
+        didReceiveSyncPluginProcessConnectionMessage(connection, messageID, arguments, reply);
+        return;
+    }
+
+    PluginProxy* pluginProxy = m_plugins.get(destinationID);
+    if (!pluginProxy)
+        return;
+
+    pluginProxy->didReceiveSyncPluginProxyMessage(connection, messageID, arguments, reply);
+}
+
+void PluginProcessConnection::didClose(CoreIPC::Connection*)
+{
+    // The plug-in process must have crashed.
+    for (HashMap<uint64_t, PluginProxy*>::const_iterator::Values it = m_plugins.begin().values(), end = m_plugins.end().values(); it != end; ++it) {
+        PluginProxy* pluginProxy = (*it);
+
+        pluginProxy->pluginProcessCrashed();
+    }
+}
+
+void PluginProcessConnection::didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::MessageID)
+{
+}
+
+void PluginProcessConnection::syncMessageSendTimedOut(CoreIPC::Connection*)
+{
+    WebProcess::shared().connection()->send(Messages::WebProcessProxy::PluginSyncMessageSendTimedOut(m_pluginPath), 0);
+}
+
+void PluginProcessConnection::setException(const String& exceptionString)
+{
+    NPRuntimeObjectMap::setGlobalException(exceptionString);
+}
+
+} // namespace WebKit
+
+#endif // ENABLE(PLUGIN_PROCESS)