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

1 files changed, 252 insertions, 0 deletions

diff --git a/Source/WebKit2/PluginProcess/PluginProcess.cpp b/Source/WebKit2/PluginProcess/PluginProcess.cpp
new file mode 100644
index 000000000..a366f5db7
--- /dev/null
+++ b/Source/WebKit2/PluginProcess/PluginProcess.cpp
@@ -0,0 +1,252 @@
+/*
+ * 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 "PluginProcess.h"
+
+#if ENABLE(PLUGIN_PROCESS)
+
+#include "ArgumentCoders.h"
+#include "Attachment.h"
+#include "NetscapePlugin.h"
+#include "NetscapePluginModule.h"
+#include "PluginProcessProxyMessages.h"
+#include "PluginProcessCreationParameters.h"
+#include "WebProcessConnection.h"
+#include <WebCore/NotImplemented.h>
+
+#if USE(UNIX_DOMAIN_SOCKETS)
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/resource.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#ifdef SOCK_SEQPACKET
+#define SOCKET_TYPE SOCK_SEQPACKET
+#else
+#if PLATFORM(GTK)
+#define SOCKET_TYPE SOCK_STREAM
+#else
+#define SOCKET_TYPE SOCK_DGRAM
+#endif
+#endif // SOCK_SEQPACKET
+#endif // USE(UNIX_DOMAIN_SOCKETS)
+
+namespace WebKit {
+
+static const double shutdownTimeout = 15.0;
+
+PluginProcess& PluginProcess::shared()
+{
+    DEFINE_STATIC_LOCAL(PluginProcess, pluginProcess, ());
+    return pluginProcess;
+}
+
+PluginProcess::PluginProcess()
+    : ChildProcess(shutdownTimeout)
+#if PLATFORM(MAC)
+    , m_compositingRenderServerPort(MACH_PORT_NULL)
+#endif
+{
+}
+
+PluginProcess::~PluginProcess()
+{
+}
+
+void PluginProcess::initialize(CoreIPC::Connection::Identifier serverIdentifier, RunLoop* runLoop)
+{
+    ASSERT(!m_connection);
+
+    m_connection = CoreIPC::Connection::createClientConnection(serverIdentifier, this, runLoop);
+    m_connection->setDidCloseOnConnectionWorkQueueCallback(didCloseOnConnectionWorkQueue);
+    m_connection->open();
+
+    NetscapePlugin::setSetExceptionFunction(WebProcessConnection::setGlobalException);
+}
+
+void PluginProcess::removeWebProcessConnection(WebProcessConnection* webProcessConnection)
+{
+    size_t vectorIndex = m_webProcessConnections.find(webProcessConnection);
+    ASSERT(vectorIndex != notFound);
+
+    m_webProcessConnections.remove(vectorIndex);
+    
+    if (m_webProcessConnections.isEmpty() && m_pluginModule) {
+        // Decrement the load count. This is balanced by a call to incrementLoadCount in createWebProcessConnection.
+        m_pluginModule->decrementLoadCount();
+    }        
+
+    enableTermination();
+}
+
+NetscapePluginModule* PluginProcess::netscapePluginModule()
+{
+    if (!m_pluginModule) {
+        ASSERT(!m_pluginPath.isNull());
+        m_pluginModule = NetscapePluginModule::getOrCreate(m_pluginPath);
+
+#if PLATFORM(MAC)
+        if (m_pluginModule) {
+            if (m_pluginModule->pluginQuirks().contains(PluginQuirks::PrognameShouldBeWebKitPluginHost))
+                setprogname("WebKitPluginHost");
+        }
+#endif
+    }
+
+    return m_pluginModule.get();
+}
+
+bool PluginProcess::shouldTerminate()
+{
+    ASSERT(m_webProcessConnections.isEmpty());
+
+    return true;
+}
+
+void PluginProcess::didReceiveMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments)
+{
+    didReceivePluginProcessMessage(connection, messageID, arguments);
+}
+
+void PluginProcess::didClose(CoreIPC::Connection*)
+{
+    // The UI process has crashed, just go ahead and quit.
+    // FIXME: If the plug-in is spinning in the main loop, we'll never get this message.
+    RunLoop::current()->stop();
+}
+
+void PluginProcess::didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::MessageID)
+{
+}
+
+void PluginProcess::syncMessageSendTimedOut(CoreIPC::Connection*)
+{
+}
+
+void PluginProcess::initializePluginProcess(const PluginProcessCreationParameters& parameters)
+{
+    ASSERT(!m_pluginModule);
+
+    m_pluginPath = parameters.pluginPath;
+
+    platformInitialize(parameters);
+}
+
+void PluginProcess::createWebProcessConnection()
+{
+    bool didHaveAnyWebProcessConnections = !m_webProcessConnections.isEmpty();
+
+#if PLATFORM(MAC)
+    // Create the listening port.
+    mach_port_t listeningPort;
+    mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &listeningPort);
+
+    // Create a listening connection.
+    RefPtr<WebProcessConnection> connection = WebProcessConnection::create(listeningPort);
+    m_webProcessConnections.append(connection.release());
+
+    CoreIPC::Attachment clientPort(listeningPort, MACH_MSG_TYPE_MAKE_SEND);
+    m_connection->send(Messages::PluginProcessProxy::DidCreateWebProcessConnection(clientPort), 0);
+#elif USE(UNIX_DOMAIN_SOCKETS)
+    int sockets[2];
+    if (socketpair(AF_UNIX, SOCKET_TYPE, 0, sockets) == -1) {
+        ASSERT_NOT_REACHED();
+        return;
+    }
+
+    // Don't expose the plugin process socket to the web process.
+    while (fcntl(sockets[1], F_SETFD, FD_CLOEXEC)  == -1) {
+        if (errno != EINTR) {
+            ASSERT_NOT_REACHED();
+            while (close(sockets[0]) == -1 && errno == EINTR) { }
+            while (close(sockets[1]) == -1 && errno == EINTR) { }
+            return;
+        }
+    }
+
+    // Don't expose the web process socket to possible future web processes.
+    while (fcntl(sockets[0], F_SETFD, FD_CLOEXEC) == -1) {
+        if (errno != EINTR) {
+            ASSERT_NOT_REACHED();
+            while (close(sockets[0]) == -1 && errno == EINTR) { }
+            while (close(sockets[1]) == -1 && errno == EINTR) { }
+            return;
+        }
+    }
+
+    RefPtr<WebProcessConnection> connection = WebProcessConnection::create(sockets[1]);
+    m_webProcessConnections.append(connection.release());
+
+    CoreIPC::Attachment clientSocket(sockets[0]);
+    m_connection->send(Messages::PluginProcessProxy::DidCreateWebProcessConnection(clientSocket), 0);
+#else
+    notImplemented();
+#endif
+
+    if (NetscapePluginModule* module = netscapePluginModule()) {
+        if (!didHaveAnyWebProcessConnections) {
+            // Increment the load count. This is matched by a call to decrementLoadCount in removeWebProcessConnection.
+            // We do this so that the plug-in module's NP_Shutdown won't be called until right before exiting.
+            module->incrementLoadCount();
+        }
+    }
+
+    disableTermination();
+}
+
+void PluginProcess::getSitesWithData(uint64_t callbackID)
+{
+    LocalTerminationDisabler terminationDisabler(*this);
+
+    Vector<String> sites;
+    if (NetscapePluginModule* module = netscapePluginModule())
+        sites = module->sitesWithData();
+
+    m_connection->send(Messages::PluginProcessProxy::DidGetSitesWithData(sites, callbackID), 0);
+}
+
+void PluginProcess::clearSiteData(const Vector<String>& sites, uint64_t flags, uint64_t maxAgeInSeconds, uint64_t callbackID)
+{
+    LocalTerminationDisabler terminationDisabler(*this);
+
+    if (NetscapePluginModule* module = netscapePluginModule()) {
+        if (sites.isEmpty()) {
+            // Clear everything.
+            module->clearSiteData(String(), flags, maxAgeInSeconds);
+        } else {
+            for (size_t i = 0; i < sites.size(); ++i)
+                module->clearSiteData(sites[i], flags, maxAgeInSeconds);
+        }
+    }
+
+    m_connection->send(Messages::PluginProcessProxy::DidClearSiteData(callbackID), 0);
+}
+
+} // namespace WebKit
+
+#endif // ENABLE(PLUGIN_PROCESS)
+