Source/WebKit/mac/Plugins/Hosted/NetscapePluginHostManager.mm - platform/external/webkit - Git at Google

 /*
  * Copyright (C) 2008 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. ``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
  * 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 USE(PLUGIN_HOST_PROCESS) && ENABLE(NETSCAPE_PLUGIN_API)

 #import "NetscapePluginHostManager.h"

 #import "NetscapePluginHostProxy.h"
 #import "NetscapePluginInstanceProxy.h"
 #import "WebLocalizableStringsInternal.h"
 #import "WebKitSystemInterface.h"
 #import "WebNetscapePluginPackage.h"
 #import <mach/mach_port.h>
 #import <servers/bootstrap.h>
 #import <spawn.h>
 #import <wtf/Assertions.h>
 #import <wtf/RetainPtr.h>
 #import <wtf/StdLibExtras.h>

 extern "C" {
 #import "WebKitPluginAgent.h"
 #import "WebKitPluginHost.h"
 }

 using namespace std;
 using namespace WebCore;

 namespace WebKit {

 NetscapePluginHostManager& NetscapePluginHostManager::shared()
 {
     DEFINE_STATIC_LOCAL(NetscapePluginHostManager, pluginHostManager, ());

     return pluginHostManager;
 }

 static NSString * const pluginHostAppName = @"WebKitPluginHost.app";

 NetscapePluginHostManager::NetscapePluginHostManager()
     : m_pluginVendorPort(MACH_PORT_NULL)
 {
 }

 NetscapePluginHostManager::~NetscapePluginHostManager()
 {
 }

 NetscapePluginHostProxy* NetscapePluginHostManager::hostForPlugin(const WTF::String& pluginPath, cpu_type_t pluginArchitecture, const String& bundleIdentifier)
 {
     pair<PluginHostMap::iterator, bool> result = m_pluginHosts.add(pluginPath, 0);

     // The package was already in the map, just return it.
     if (!result.second)
         return result.first->second;

     mach_port_t clientPort;
     if (mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &clientPort) != KERN_SUCCESS) {
         m_pluginHosts.remove(result.first);
         return 0;
     }

     mach_port_t pluginHostPort;
     ProcessSerialNumber pluginHostPSN;
     if (!spawnPluginHost(pluginPath, pluginArchitecture, clientPort, pluginHostPort, pluginHostPSN)) {
         mach_port_destroy(mach_task_self(), clientPort);
         m_pluginHosts.remove(result.first);
         return 0;
     }

     // Since Flash NPObjects add methods dynamically, we don't want to cache when a property/method doesn't exist
     // on an object because it could be added later.
     bool shouldCacheMissingPropertiesAndMethods = bundleIdentifier != "com.macromedia.Flash Player.plugin";

     NetscapePluginHostProxy* hostProxy = new NetscapePluginHostProxy(clientPort, pluginHostPort, pluginHostPSN, shouldCacheMissingPropertiesAndMethods);

     result.first->second = hostProxy;

     return hostProxy;
 }

 bool NetscapePluginHostManager::spawnPluginHost(const String& pluginPath, cpu_type_t pluginArchitecture, mach_port_t clientPort, mach_port_t& pluginHostPort, ProcessSerialNumber& pluginHostPSN)
 {
     if (m_pluginVendorPort == MACH_PORT_NULL) {
         if (!initializeVendorPort())
             return false;
     }

     mach_port_t renderServerPort = WKInitializeRenderServer();
     if (renderServerPort == MACH_PORT_NULL)
         return false;

     NSString *pluginHostAppPath = [[NSBundle bundleWithIdentifier:@"com.apple.WebKit"] pathForAuxiliaryExecutable:pluginHostAppName];
     NSString *pluginHostAppExecutablePath = [[NSBundle bundleWithPath:pluginHostAppPath] executablePath];

     RetainPtr<CFStringRef> localization(AdoptCF, WKCopyCFLocalizationPreferredName(NULL));

     NSDictionary *launchProperties = [[NSDictionary alloc] initWithObjectsAndKeys:
                                       pluginHostAppExecutablePath, @"pluginHostPath",
                                       [NSNumber numberWithInt:pluginArchitecture], @"cpuType",
                                       localization.get(), @"localization",
                                       nil];

     NSData *data = [NSPropertyListSerialization dataFromPropertyList:launchProperties format:NSPropertyListBinaryFormat_v1_0 errorDescription:0];
     ASSERT(data);

     [launchProperties release];

     kern_return_t kr = _WKPASpawnPluginHost(m_pluginVendorPort, reinterpret_cast<uint8_t*>(const_cast<void*>([data bytes])), [data length], &pluginHostPort);

     if (kr == MACH_SEND_INVALID_DEST) {
         // The plug-in vendor port has gone away for some reason. Try to reinitialize it.
         m_pluginVendorPort = MACH_PORT_NULL;
         if (!initializeVendorPort())
             return false;

         // And spawn the plug-in host again.
         kr = _WKPASpawnPluginHost(m_pluginVendorPort, reinterpret_cast<uint8_t*>(const_cast<void*>([data bytes])), [data length], &pluginHostPort);
     }

     if (kr != KERN_SUCCESS) {
         // FIXME: Check for invalid dest and try to re-spawn the plug-in agent.
         LOG_ERROR("Failed to spawn plug-in host, error %x", kr);
         return false;
     }

     NSString *visibleName = [NSString stringWithFormat:UI_STRING_INTERNAL("%@ (%@ Internet plug-in)",
                                                                  "visible name of the plug-in host process. The first argument is the plug-in name "
                                                                  "and the second argument is the application name."),
                              [[(NSString*)pluginPath lastPathComponent] stringByDeletingPathExtension], [[NSProcessInfo processInfo] processName]];

     NSDictionary *hostProperties = [[NSDictionary alloc] initWithObjectsAndKeys:
                                     visibleName, @"visibleName",
                                     (NSString *)pluginPath, @"bundlePath",
                                     nil];

     data = [NSPropertyListSerialization dataFromPropertyList:hostProperties format:NSPropertyListBinaryFormat_v1_0 errorDescription:nil];
     ASSERT(data);

     [hostProperties release];

     ProcessSerialNumber psn;
     GetCurrentProcess(&psn);

     kr = _WKPHCheckInWithPluginHost(pluginHostPort, (uint8_t*)[data bytes], [data length], clientPort, psn.highLongOfPSN, psn.lowLongOfPSN, renderServerPort,
                                     &pluginHostPSN.highLongOfPSN, &pluginHostPSN.lowLongOfPSN);

     if (kr != KERN_SUCCESS) {
         mach_port_deallocate(mach_task_self(), pluginHostPort);
         LOG_ERROR("Failed to check in with plug-in host, error %x", kr);

         return false;
     }

     return true;
 }

 bool NetscapePluginHostManager::initializeVendorPort()
 {
     ASSERT(m_pluginVendorPort == MACH_PORT_NULL);

     // Get the plug-in agent port.
     mach_port_t pluginAgentPort;
     if (bootstrap_look_up(bootstrap_port, "com.apple.WebKit.PluginAgent", &pluginAgentPort) != KERN_SUCCESS) {
         LOG_ERROR("Failed to look up the plug-in agent port");
         return false;
     }

     NSData *appNameData = [[[NSProcessInfo processInfo] processName] dataUsingEncoding:NSUTF8StringEncoding];

     // Tell the plug-in agent that we exist.
     if (_WKPACheckInApplication(pluginAgentPort, (uint8_t*)[appNameData bytes], [appNameData length], &m_pluginVendorPort) != KERN_SUCCESS)
         return false;

     // FIXME: Should we add a notification for when the vendor port dies?

     return true;
 }

 void NetscapePluginHostManager::pluginHostDied(NetscapePluginHostProxy* pluginHost)
 {
     PluginHostMap::iterator end = m_pluginHosts.end();

     // This has O(n) complexity but the number of active plug-in hosts is very small so it shouldn't matter.
     for (PluginHostMap::iterator it = m_pluginHosts.begin(); it != end; ++it) {
         if (it->second == pluginHost) {
             m_pluginHosts.remove(it);
             return;
         }
     }
 }

 PassRefPtr<NetscapePluginInstanceProxy> NetscapePluginHostManager::instantiatePlugin(const String& pluginPath, cpu_type_t pluginArchitecture, const String& bundleIdentifier, WebHostedNetscapePluginView *pluginView, NSString *mimeType, NSArray *attributeKeys, NSArray *attributeValues, NSString *userAgent, NSURL *sourceURL, bool fullFrame, bool isPrivateBrowsingEnabled, bool isAcceleratedCompositingEnabled)
 {
     NetscapePluginHostProxy* hostProxy = hostForPlugin(pluginPath, pluginArchitecture, bundleIdentifier);
     if (!hostProxy)
         return 0;

     RetainPtr<NSMutableDictionary> properties(AdoptNS, [[NSMutableDictionary alloc] init]);

     if (mimeType)
         [properties.get() setObject:mimeType forKey:@"mimeType"];

     ASSERT_ARG(userAgent, userAgent);
     [properties.get() setObject:userAgent forKey:@"userAgent"];

     ASSERT_ARG(attributeKeys, attributeKeys);
     [properties.get() setObject:attributeKeys forKey:@"attributeKeys"];

     ASSERT_ARG(attributeValues, attributeValues);
     [properties.get() setObject:attributeValues forKey:@"attributeValues"];

     if (sourceURL)
         [properties.get() setObject:[sourceURL absoluteString] forKey:@"sourceURL"];

     [properties.get() setObject:[NSNumber numberWithBool:fullFrame] forKey:@"fullFrame"];
     [properties.get() setObject:[NSNumber numberWithBool:isPrivateBrowsingEnabled] forKey:@"privateBrowsingEnabled"];
     [properties.get() setObject:[NSNumber numberWithBool:isAcceleratedCompositingEnabled] forKey:@"acceleratedCompositingEnabled"];

     NSData *data = [NSPropertyListSerialization dataFromPropertyList:properties.get() format:NSPropertyListBinaryFormat_v1_0 errorDescription:nil];
     ASSERT(data);

     RefPtr<NetscapePluginInstanceProxy> instance = NetscapePluginInstanceProxy::create(hostProxy, pluginView, fullFrame);
     uint32_t requestID = instance->nextRequestID();
     kern_return_t kr = _WKPHInstantiatePlugin(hostProxy->port(), requestID, (uint8_t*)[data bytes], [data length], instance->pluginID());
     if (kr == MACH_SEND_INVALID_DEST) {
         // Invalidate the instance.
         instance->invalidate();

         // The plug-in host must have died, but we haven't received the death notification yet.
         pluginHostDied(hostProxy);

         // Try to spawn it again.
         hostProxy = hostForPlugin(pluginPath, pluginArchitecture, bundleIdentifier);

         // Create a new instance.
         instance = NetscapePluginInstanceProxy::create(hostProxy, pluginView, fullFrame);
         requestID = instance->nextRequestID();
         kr = _WKPHInstantiatePlugin(hostProxy->port(), requestID, (uint8_t*)[data bytes], [data length], instance->pluginID());
     }

     auto_ptr<NetscapePluginInstanceProxy::InstantiatePluginReply> reply = instance->waitForReply<NetscapePluginInstanceProxy::InstantiatePluginReply>(requestID);
     if (!reply.get() || reply->m_resultCode != KERN_SUCCESS) {
         instance->cleanup();
         return 0;
     }

     instance->setRenderContextID(reply->m_renderContextID);
     instance->setRendererType(reply->m_rendererType);

     return instance.release();
 }

 void NetscapePluginHostManager::createPropertyListFile(const String& pluginPath, cpu_type_t pluginArchitecture)
 {
     NSString *pluginHostAppPath = [[NSBundle bundleWithIdentifier:@"com.apple.WebKit"] pathForAuxiliaryExecutable:pluginHostAppName];
     NSString *pluginHostAppExecutablePath = [[NSBundle bundleWithPath:pluginHostAppPath] executablePath];
     NSString *bundlePath = pluginPath;

     pid_t pid;
     posix_spawnattr_t attr;
     posix_spawnattr_init(&attr);

     // Set the architecture.
     size_t ocount = 0;
     int cpuTypes[] = { pluginArchitecture };
     posix_spawnattr_setbinpref_np(&attr, 1, cpuTypes, &ocount);

     // Spawn the plug-in host and tell it to call the registration function.
     const char* args[] = { [pluginHostAppExecutablePath fileSystemRepresentation], "-createPluginMIMETypesPreferences", [bundlePath fileSystemRepresentation], 0 };

     int result = posix_spawn(&pid, args[0], 0, &attr, const_cast<char* const*>(args), 0);
     posix_spawnattr_destroy(&attr);

     if (!result && pid > 0) {
         // Wait for the process to finish.
         while (waitpid(pid, 0,  0) == -1) { }
     }
 }

 void NetscapePluginHostManager::didCreateWindow()
 {
     // See if any of our hosts are in full-screen mode.
     PluginHostMap::iterator end = m_pluginHosts.end();
     for (PluginHostMap::iterator it = m_pluginHosts.begin(); it != end; ++it) {
         NetscapePluginHostProxy* hostProxy = it->second;

         if (!hostProxy->isMenuBarVisible()) {
             // Make ourselves the front process.
             ProcessSerialNumber psn;
             GetCurrentProcess(&psn);
             SetFrontProcess(&psn);
             return;
         }
     }
 }

 } // namespace WebKit

 #endif // USE(PLUGIN_HOST_PROCESS) && ENABLE(NETSCAPE_PLUGIN_API)
	/*
	* Copyright (C) 2008 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. ``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
	* 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 USE(PLUGIN_HOST_PROCESS) && ENABLE(NETSCAPE_PLUGIN_API)

	#import "NetscapePluginHostManager.h"

	#import "NetscapePluginHostProxy.h"
	#import "NetscapePluginInstanceProxy.h"
	#import "WebLocalizableStringsInternal.h"
	#import "WebKitSystemInterface.h"
	#import "WebNetscapePluginPackage.h"
	#import <mach/mach_port.h>
	#import <servers/bootstrap.h>
	#import <spawn.h>
	#import <wtf/Assertions.h>
	#import <wtf/RetainPtr.h>
	#import <wtf/StdLibExtras.h>

	extern "C" {
	#import "WebKitPluginAgent.h"
	#import "WebKitPluginHost.h"
	}

	using namespace std;
	using namespace WebCore;

	namespace WebKit {

	NetscapePluginHostManager& NetscapePluginHostManager::shared()
	{
	DEFINE_STATIC_LOCAL(NetscapePluginHostManager, pluginHostManager, ());

	return pluginHostManager;
	}

	static NSString * const pluginHostAppName = @"WebKitPluginHost.app";

	NetscapePluginHostManager::NetscapePluginHostManager()
	: m_pluginVendorPort(MACH_PORT_NULL)
	{
	}

	NetscapePluginHostManager::~NetscapePluginHostManager()
	{
	}

	NetscapePluginHostProxy* NetscapePluginHostManager::hostForPlugin(const WTF::String& pluginPath, cpu_type_t pluginArchitecture, const String& bundleIdentifier)
	{
	pair<PluginHostMap::iterator, bool> result = m_pluginHosts.add(pluginPath, 0);

	// The package was already in the map, just return it.
	if (!result.second)
	return result.first->second;

	mach_port_t clientPort;
	if (mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &clientPort) != KERN_SUCCESS) {
	m_pluginHosts.remove(result.first);
	return 0;
	}

	mach_port_t pluginHostPort;
	ProcessSerialNumber pluginHostPSN;
	if (!spawnPluginHost(pluginPath, pluginArchitecture, clientPort, pluginHostPort, pluginHostPSN)) {
	mach_port_destroy(mach_task_self(), clientPort);
	m_pluginHosts.remove(result.first);
	return 0;
	}

	// Since Flash NPObjects add methods dynamically, we don't want to cache when a property/method doesn't exist
	// on an object because it could be added later.
	bool shouldCacheMissingPropertiesAndMethods = bundleIdentifier != "com.macromedia.Flash Player.plugin";

	NetscapePluginHostProxy* hostProxy = new NetscapePluginHostProxy(clientPort, pluginHostPort, pluginHostPSN, shouldCacheMissingPropertiesAndMethods);

	result.first->second = hostProxy;

	return hostProxy;
	}

	bool NetscapePluginHostManager::spawnPluginHost(const String& pluginPath, cpu_type_t pluginArchitecture, mach_port_t clientPort, mach_port_t& pluginHostPort, ProcessSerialNumber& pluginHostPSN)
	{
	if (m_pluginVendorPort == MACH_PORT_NULL) {
	if (!initializeVendorPort())
	return false;
	}

	mach_port_t renderServerPort = WKInitializeRenderServer();
	if (renderServerPort == MACH_PORT_NULL)
	return false;

	NSString *pluginHostAppPath = [[NSBundle bundleWithIdentifier:@"com.apple.WebKit"] pathForAuxiliaryExecutable:pluginHostAppName];
	NSString *pluginHostAppExecutablePath = [[NSBundle bundleWithPath:pluginHostAppPath] executablePath];

	RetainPtr<CFStringRef> localization(AdoptCF, WKCopyCFLocalizationPreferredName(NULL));

	NSDictionary *launchProperties = [[NSDictionary alloc] initWithObjectsAndKeys:
	pluginHostAppExecutablePath, @"pluginHostPath",
	[NSNumber numberWithInt:pluginArchitecture], @"cpuType",
	localization.get(), @"localization",
	nil];

	NSData *data = [NSPropertyListSerialization dataFromPropertyList:launchProperties format:NSPropertyListBinaryFormat_v1_0 errorDescription:0];
	ASSERT(data);

	[launchProperties release];

	kern_return_t kr = _WKPASpawnPluginHost(m_pluginVendorPort, reinterpret_cast<uint8_t>(const_cast<void>([data bytes])), [data length], &pluginHostPort);

	if (kr == MACH_SEND_INVALID_DEST) {
	// The plug-in vendor port has gone away for some reason. Try to reinitialize it.
	m_pluginVendorPort = MACH_PORT_NULL;
	if (!initializeVendorPort())
	return false;

	// And spawn the plug-in host again.
	kr = _WKPASpawnPluginHost(m_pluginVendorPort, reinterpret_cast<uint8_t>(const_cast<void>([data bytes])), [data length], &pluginHostPort);
	}

	if (kr != KERN_SUCCESS) {
	// FIXME: Check for invalid dest and try to re-spawn the plug-in agent.
	LOG_ERROR("Failed to spawn plug-in host, error %x", kr);
	return false;
	}

	NSString *visibleName = [NSString stringWithFormat:UI_STRING_INTERNAL("%@ (%@ Internet plug-in)",
	"visible name of the plug-in host process. The first argument is the plug-in name "
	"and the second argument is the application name."),
	[[(NSString*)pluginPath lastPathComponent] stringByDeletingPathExtension], [[NSProcessInfo processInfo] processName]];

	NSDictionary *hostProperties = [[NSDictionary alloc] initWithObjectsAndKeys:
	visibleName, @"visibleName",
	(NSString *)pluginPath, @"bundlePath",
	nil];

	data = [NSPropertyListSerialization dataFromPropertyList:hostProperties format:NSPropertyListBinaryFormat_v1_0 errorDescription:nil];
	ASSERT(data);

	[hostProperties release];

	ProcessSerialNumber psn;
	GetCurrentProcess(&psn);

	kr = _WKPHCheckInWithPluginHost(pluginHostPort, (uint8_t*)[data bytes], [data length], clientPort, psn.highLongOfPSN, psn.lowLongOfPSN, renderServerPort,
	&pluginHostPSN.highLongOfPSN, &pluginHostPSN.lowLongOfPSN);

	if (kr != KERN_SUCCESS) {
	mach_port_deallocate(mach_task_self(), pluginHostPort);
	LOG_ERROR("Failed to check in with plug-in host, error %x", kr);

	return false;
	}

	return true;
	}

	bool NetscapePluginHostManager::initializeVendorPort()
	{
	ASSERT(m_pluginVendorPort == MACH_PORT_NULL);

	// Get the plug-in agent port.
	mach_port_t pluginAgentPort;
	if (bootstrap_look_up(bootstrap_port, "com.apple.WebKit.PluginAgent", &pluginAgentPort) != KERN_SUCCESS) {
	LOG_ERROR("Failed to look up the plug-in agent port");
	return false;
	}

	NSData *appNameData = [[[NSProcessInfo processInfo] processName] dataUsingEncoding:NSUTF8StringEncoding];

	// Tell the plug-in agent that we exist.
	if (_WKPACheckInApplication(pluginAgentPort, (uint8_t*)[appNameData bytes], [appNameData length], &m_pluginVendorPort) != KERN_SUCCESS)
	return false;

	// FIXME: Should we add a notification for when the vendor port dies?

	return true;
	}

	void NetscapePluginHostManager::pluginHostDied(NetscapePluginHostProxy* pluginHost)
	{
	PluginHostMap::iterator end = m_pluginHosts.end();

	// This has O(n) complexity but the number of active plug-in hosts is very small so it shouldn't matter.
	for (PluginHostMap::iterator it = m_pluginHosts.begin(); it != end; ++it) {
	if (it->second == pluginHost) {
	m_pluginHosts.remove(it);
	return;
	}
	}
	}

	PassRefPtr<NetscapePluginInstanceProxy> NetscapePluginHostManager::instantiatePlugin(const String& pluginPath, cpu_type_t pluginArchitecture, const String& bundleIdentifier, WebHostedNetscapePluginView pluginView, NSString mimeType, NSArray attributeKeys, NSArray attributeValues, NSString userAgent, NSURL sourceURL, bool fullFrame, bool isPrivateBrowsingEnabled, bool isAcceleratedCompositingEnabled)
	{
	NetscapePluginHostProxy* hostProxy = hostForPlugin(pluginPath, pluginArchitecture, bundleIdentifier);
	if (!hostProxy)
	return 0;

	RetainPtr<NSMutableDictionary> properties(AdoptNS, [[NSMutableDictionary alloc] init]);

	if (mimeType)
	[properties.get() setObject:mimeType forKey:@"mimeType"];

	ASSERT_ARG(userAgent, userAgent);
	[properties.get() setObject:userAgent forKey:@"userAgent"];

	ASSERT_ARG(attributeKeys, attributeKeys);
	[properties.get() setObject:attributeKeys forKey:@"attributeKeys"];

	ASSERT_ARG(attributeValues, attributeValues);
	[properties.get() setObject:attributeValues forKey:@"attributeValues"];

	if (sourceURL)
	[properties.get() setObject:[sourceURL absoluteString] forKey:@"sourceURL"];

	[properties.get() setObject:[NSNumber numberWithBool:fullFrame] forKey:@"fullFrame"];
	[properties.get() setObject:[NSNumber numberWithBool:isPrivateBrowsingEnabled] forKey:@"privateBrowsingEnabled"];
	[properties.get() setObject:[NSNumber numberWithBool:isAcceleratedCompositingEnabled] forKey:@"acceleratedCompositingEnabled"];

	NSData *data = [NSPropertyListSerialization dataFromPropertyList:properties.get() format:NSPropertyListBinaryFormat_v1_0 errorDescription:nil];
	ASSERT(data);

	RefPtr<NetscapePluginInstanceProxy> instance = NetscapePluginInstanceProxy::create(hostProxy, pluginView, fullFrame);
	uint32_t requestID = instance->nextRequestID();
	kern_return_t kr = _WKPHInstantiatePlugin(hostProxy->port(), requestID, (uint8_t*)[data bytes], [data length], instance->pluginID());
	if (kr == MACH_SEND_INVALID_DEST) {
	// Invalidate the instance.
	instance->invalidate();

	// The plug-in host must have died, but we haven't received the death notification yet.
	pluginHostDied(hostProxy);

	// Try to spawn it again.
	hostProxy = hostForPlugin(pluginPath, pluginArchitecture, bundleIdentifier);

	// Create a new instance.
	instance = NetscapePluginInstanceProxy::create(hostProxy, pluginView, fullFrame);
	requestID = instance->nextRequestID();
	kr = _WKPHInstantiatePlugin(hostProxy->port(), requestID, (uint8_t*)[data bytes], [data length], instance->pluginID());
	}

	auto_ptr<NetscapePluginInstanceProxy::InstantiatePluginReply> reply = instance->waitForReply<NetscapePluginInstanceProxy::InstantiatePluginReply>(requestID);
	if (!reply.get() \|\| reply->m_resultCode != KERN_SUCCESS) {
	instance->cleanup();
	return 0;
	}

	instance->setRenderContextID(reply->m_renderContextID);
	instance->setRendererType(reply->m_rendererType);

	return instance.release();
	}

	void NetscapePluginHostManager::createPropertyListFile(const String& pluginPath, cpu_type_t pluginArchitecture)
	{
	NSString *pluginHostAppPath = [[NSBundle bundleWithIdentifier:@"com.apple.WebKit"] pathForAuxiliaryExecutable:pluginHostAppName];
	NSString *pluginHostAppExecutablePath = [[NSBundle bundleWithPath:pluginHostAppPath] executablePath];
	NSString *bundlePath = pluginPath;

	pid_t pid;
	posix_spawnattr_t attr;
	posix_spawnattr_init(&attr);

	// Set the architecture.
	size_t ocount = 0;
	int cpuTypes[] = { pluginArchitecture };
	posix_spawnattr_setbinpref_np(&attr, 1, cpuTypes, &ocount);

	// Spawn the plug-in host and tell it to call the registration function.
	const char* args[] = { [pluginHostAppExecutablePath fileSystemRepresentation], "-createPluginMIMETypesPreferences", [bundlePath fileSystemRepresentation], 0 };

	int result = posix_spawn(&pid, args[0], 0, &attr, const_cast<char* const*>(args), 0);
	posix_spawnattr_destroy(&attr);

	if (!result && pid > 0) {
	// Wait for the process to finish.
	while (waitpid(pid, 0, 0) == -1) { }
	}
	}

	void NetscapePluginHostManager::didCreateWindow()
	{
	// See if any of our hosts are in full-screen mode.
	PluginHostMap::iterator end = m_pluginHosts.end();
	for (PluginHostMap::iterator it = m_pluginHosts.begin(); it != end; ++it) {
	NetscapePluginHostProxy* hostProxy = it->second;

	if (!hostProxy->isMenuBarVisible()) {
	// Make ourselves the front process.
	ProcessSerialNumber psn;
	GetCurrentProcess(&psn);
	SetFrontProcess(&psn);
	return;
	}
	}
	}

	} // namespace WebKit

	#endif // USE(PLUGIN_HOST_PROCESS) && ENABLE(NETSCAPE_PLUGIN_API)