webkit/src/WebCore/plugins/win/PluginDatabaseWin.cpp - toolchain/benchmark - Git at Google

 /*
  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2008 Collabora, Ltd.  All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, 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 COMPUTER, 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 COMPUTER, 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.
  */

 #include "config.h"
 #include "PluginDatabase.h"

 #include "Frame.h"
 #include "KURL.h"
 #include "PluginPackage.h"
 #include <windows.h>
 #include <shlwapi.h>

 #if COMPILER(MINGW)
 #define _countof(x) (sizeof(x)/sizeof(x[0]))
 #endif

 #if PLATFORM(WINCE)
 // WINCE doesn't support Registry Key Access Rights. The parameter should always be 0
 #define KEY_ENUMERATE_SUB_KEYS 0

 DWORD SHGetValue(HKEY hkey, LPCWSTR pszSubKey, LPCWSTR pszValue, LPDWORD pdwType, LPVOID pvData, LPDWORD pcbData)
 {
     HKEY key;
     if (RegOpenKeyEx(hkey, pszSubKey, 0, 0, &key) == ERROR_SUCCESS) {
         DWORD result = RegQueryValueEx(key, pszValue, 0, pdwType, (LPBYTE)pvData, pcbData);
         RegCloseKey(key);
         return result;
     }
     return ERROR_INVALID_NAME;
 }

 BOOL PathRemoveFileSpec(LPWSTR moduleFileNameStr)
 {
     if (!*moduleFileNameStr)
         return FALSE;

     LPWSTR lastPos = 0;
     LPWSTR curPos = moduleFileNameStr;
     do {
         if (*curPos == L'/' || *curPos == L'\\')
             lastPos = curPos;
     } while (*++curPos);

     if (lastPos == curPos - 1)
         return FALSE;

     if (lastPos)
         *lastPos = 0;
     else {
         moduleFileNameStr[0] = L'\\';
         moduleFileNameStr[1] = 0;
     }

     return TRUE;
 }
 #endif

 namespace WebCore {

 static inline void addPluginPathsFromRegistry(HKEY rootKey, HashSet<String>& paths)
 {
     HKEY key;
     HRESULT result = RegOpenKeyExW(rootKey, L"Software\\MozillaPlugins", 0, KEY_ENUMERATE_SUB_KEYS, &key);

     if (result != ERROR_SUCCESS)
         return;

     wchar_t name[128];
     FILETIME lastModified;

     // Enumerate subkeys
     for (int i = 0;; i++) {
         DWORD nameLen = _countof(name);
         result = RegEnumKeyExW(key, i, name, &nameLen, 0, 0, 0, &lastModified);

         if (result != ERROR_SUCCESS)
             break;

         WCHAR pathStr[_MAX_PATH];
         DWORD pathStrSize = sizeof(pathStr);
         DWORD type;

         result = SHGetValue(key, name, TEXT("Path"), &type, (LPBYTE)pathStr, &pathStrSize);
         if (result != ERROR_SUCCESS || type != REG_SZ)
             continue;

         paths.add(String(pathStr, pathStrSize / sizeof(WCHAR) - 1));
     }

     RegCloseKey(key);
 }

 void PluginDatabase::getPluginPathsInDirectories(HashSet<String>& paths) const
 {
     // FIXME: This should be a case insensitive set.
     HashSet<String> uniqueFilenames;

     HANDLE hFind = INVALID_HANDLE_VALUE;
     WIN32_FIND_DATAW findFileData;

     String oldWMPPluginPath;
     String newWMPPluginPath;

     Vector<String>::const_iterator end = m_pluginDirectories.end();
     for (Vector<String>::const_iterator it = m_pluginDirectories.begin(); it != end; ++it) {
         String pattern = *it + "\\*";

         hFind = FindFirstFileW(pattern.charactersWithNullTermination(), &findFileData);

         if (hFind == INVALID_HANDLE_VALUE)
             continue;

         do {
             if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
                 continue;

             String filename = String(findFileData.cFileName, wcslen(findFileData.cFileName));
             if ((!filename.startsWith("np", false) || !filename.endsWith("dll", false)) &&
                 (!equalIgnoringCase(filename, "Plugin.dll") || !it->endsWith("Shockwave 10", false)))
                 continue;

             String fullPath = *it + "\\" + filename;
             if (!uniqueFilenames.add(fullPath).second)
                 continue;

             paths.add(fullPath);

             if (equalIgnoringCase(filename, "npdsplay.dll"))
                 oldWMPPluginPath = fullPath;
             else if (equalIgnoringCase(filename, "np-mswmp.dll"))
                 newWMPPluginPath = fullPath;

         } while (FindNextFileW(hFind, &findFileData) != 0);

         FindClose(hFind);
     }

     addPluginPathsFromRegistry(HKEY_LOCAL_MACHINE, paths);
     addPluginPathsFromRegistry(HKEY_CURRENT_USER, paths);

     // If both the old and new WMP plugin are present in the plugins set,
     // we remove the old one so we don't end up choosing the old one.
     if (!oldWMPPluginPath.isEmpty() && !newWMPPluginPath.isEmpty())
         paths.remove(oldWMPPluginPath);
 }

 static inline Vector<int> parseVersionString(const String& versionString)
 {
     Vector<int> version;

     unsigned startPos = 0;
     unsigned endPos;

     while (startPos < versionString.length()) {
         for (endPos = startPos; endPos < versionString.length(); ++endPos)
             if (versionString[endPos] == '.' || versionString[endPos] == '_')
                 break;

         int versionComponent = versionString.substring(startPos, endPos - startPos).toInt();
         version.append(versionComponent);

         startPos = endPos + 1;
     }

     return version;
 }

 // This returns whether versionA is higher than versionB
 static inline bool compareVersions(const Vector<int>& versionA, const Vector<int>& versionB)
 {
     for (unsigned i = 0; i < versionA.size(); i++) {
         if (i >= versionB.size())
             return true;

         if (versionA[i] > versionB[i])
             return true;
         else if (versionA[i] < versionB[i])
             return false;
     }

     // If we come here, the versions are either the same or versionB has an extra component, just return false
     return false;
 }

 static inline void addMozillaPluginDirectories(Vector<String>& directories)
 {
     // Enumerate all Mozilla plugin directories in the registry
     HKEY key;
     LONG result;

     result = RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("Software\\Mozilla"), 0, KEY_READ, &key);
     if (result == ERROR_SUCCESS) {
         WCHAR name[128];
         FILETIME lastModified;

         // Enumerate subkeys
         for (int i = 0;; i++) {
             DWORD nameLen = sizeof(name) / sizeof(WCHAR);
             result = RegEnumKeyExW(key, i, name, &nameLen, 0, 0, 0, &lastModified);

             if (result != ERROR_SUCCESS)
                 break;

             String extensionsPath = String(name, nameLen) + "\\Extensions";
             HKEY extensionsKey;

             // Try opening the key
             result = RegOpenKeyEx(key, extensionsPath.charactersWithNullTermination(), 0, KEY_READ, &extensionsKey);

             if (result == ERROR_SUCCESS) {
                 // Now get the plugins directory
                 WCHAR pluginsDirectoryStr[_MAX_PATH];
                 DWORD pluginsDirectorySize = sizeof(pluginsDirectoryStr);
                 DWORD type;

                 result = RegQueryValueEx(extensionsKey, TEXT("Plugins"), 0, &type, (LPBYTE)&pluginsDirectoryStr, &pluginsDirectorySize);

                 if (result == ERROR_SUCCESS && type == REG_SZ)
                     directories.append(String(pluginsDirectoryStr, pluginsDirectorySize / sizeof(WCHAR) - 1));

                 RegCloseKey(extensionsKey);
             }
         }

         RegCloseKey(key);
     }
 }

 static inline void addWindowsMediaPlayerPluginDirectory(Vector<String>& directories)
 {
 #if !PLATFORM(WINCE)
     // The new WMP Firefox plugin is installed in \PFiles\Plugins if it can't find any Firefox installs
     WCHAR pluginDirectoryStr[_MAX_PATH + 1];
     DWORD pluginDirectorySize = ::ExpandEnvironmentStringsW(TEXT("%SYSTEMDRIVE%\\PFiles\\Plugins"), pluginDirectoryStr, _countof(pluginDirectoryStr));

     if (pluginDirectorySize > 0 && pluginDirectorySize <= _countof(pluginDirectoryStr))
         directories.append(String(pluginDirectoryStr, pluginDirectorySize - 1));
 #endif

     DWORD type;
     WCHAR installationDirectoryStr[_MAX_PATH];
     DWORD installationDirectorySize = sizeof(installationDirectoryStr);

     HRESULT result = SHGetValue(HKEY_LOCAL_MACHINE, TEXT("Software\\Microsoft\\MediaPlayer"), TEXT("Installation Directory"), &type, (LPBYTE)&installationDirectoryStr, &installationDirectorySize);

     if (result == ERROR_SUCCESS && type == REG_SZ)
         directories.append(String(installationDirectoryStr, installationDirectorySize / sizeof(WCHAR) - 1));
 }

 static inline void addQuickTimePluginDirectory(Vector<String>& directories)
 {
     DWORD type;
     WCHAR installationDirectoryStr[_MAX_PATH];
     DWORD installationDirectorySize = sizeof(installationDirectoryStr);

     HRESULT result = SHGetValue(HKEY_LOCAL_MACHINE, TEXT("Software\\Apple Computer, Inc.\\QuickTime"), TEXT("InstallDir"), &type, (LPBYTE)&installationDirectoryStr, &installationDirectorySize);

     if (result == ERROR_SUCCESS && type == REG_SZ) {
         String pluginDir = String(installationDirectoryStr, installationDirectorySize / sizeof(WCHAR) - 1) + "\\plugins";
         directories.append(pluginDir);
     }
 }

 static inline void addAdobeAcrobatPluginDirectory(Vector<String>& directories)
 {
     HKEY key;
     HRESULT result = RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("Software\\Adobe\\Acrobat Reader"), 0, KEY_READ, &key);
     if (result != ERROR_SUCCESS)
         return;

     WCHAR name[128];
     FILETIME lastModified;

     Vector<int> latestAcrobatVersion;
     String latestAcrobatVersionString;

     // Enumerate subkeys
     for (int i = 0;; i++) {
         DWORD nameLen = sizeof(name) / sizeof(WCHAR);
         result = RegEnumKeyExW(key, i, name, &nameLen, 0, 0, 0, &lastModified);

         if (result != ERROR_SUCCESS)
             break;

         Vector<int> acrobatVersion = parseVersionString(String(name, nameLen));
         if (compareVersions(acrobatVersion, latestAcrobatVersion)) {
             latestAcrobatVersion = acrobatVersion;
             latestAcrobatVersionString = String(name, nameLen);
         }
     }

     if (!latestAcrobatVersionString.isNull()) {
         DWORD type;
         WCHAR acrobatInstallPathStr[_MAX_PATH];
         DWORD acrobatInstallPathSize = sizeof(acrobatInstallPathStr);

         String acrobatPluginKeyPath = "Software\\Adobe\\Acrobat Reader\\" + latestAcrobatVersionString + "\\InstallPath";
         result = SHGetValue(HKEY_LOCAL_MACHINE, acrobatPluginKeyPath.charactersWithNullTermination(), 0, &type, (LPBYTE)acrobatInstallPathStr, &acrobatInstallPathSize);

         if (result == ERROR_SUCCESS) {
             String acrobatPluginDirectory = String(acrobatInstallPathStr, acrobatInstallPathSize / sizeof(WCHAR) - 1) + "\\browser";
             directories.append(acrobatPluginDirectory);
         }
     }

     RegCloseKey(key);
 }

 static inline String safariPluginsDirectory()
 {
     WCHAR moduleFileNameStr[_MAX_PATH];
     static String pluginsDirectory;
     static bool cachedPluginDirectory = false;

     if (!cachedPluginDirectory) {
         cachedPluginDirectory = true;

         int moduleFileNameLen = GetModuleFileName(0, moduleFileNameStr, _MAX_PATH);

         if (!moduleFileNameLen || moduleFileNameLen == _MAX_PATH)
             goto exit;

         if (!PathRemoveFileSpec(moduleFileNameStr))
             goto exit;

         pluginsDirectory = String(moduleFileNameStr) + "\\Plugins";
     }
 exit:
     return pluginsDirectory;
 }

 static inline void addMacromediaPluginDirectories(Vector<String>& directories)
 {
 #if !PLATFORM(WINCE)
     WCHAR systemDirectoryStr[MAX_PATH];

     if (GetSystemDirectory(systemDirectoryStr, _countof(systemDirectoryStr)) == 0)
         return;

     WCHAR macromediaDirectoryStr[MAX_PATH];

     PathCombine(macromediaDirectoryStr, systemDirectoryStr, TEXT("macromed\\Flash"));
     directories.append(macromediaDirectoryStr);

     PathCombine(macromediaDirectoryStr, systemDirectoryStr, TEXT("macromed\\Shockwave 10"));
     directories.append(macromediaDirectoryStr);
 #endif
 }

 Vector<String> PluginDatabase::defaultPluginDirectories()
 {
     Vector<String> directories;
     String ourDirectory = safariPluginsDirectory();

     if (!ourDirectory.isNull())
         directories.append(ourDirectory);
     addQuickTimePluginDirectory(directories);
     addAdobeAcrobatPluginDirectory(directories);
     addMozillaPluginDirectories(directories);
     addWindowsMediaPlayerPluginDirectory(directories);
     addMacromediaPluginDirectories(directories);

     return directories;
 }

 bool PluginDatabase::isPreferredPluginDirectory(const String& directory)
 {
     String ourDirectory = safariPluginsDirectory();

     if (!ourDirectory.isNull() && !directory.isNull())
         return ourDirectory == directory;

     return false;
 }

 }
	/*
	* Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
	* Copyright (C) 2008 Collabora, Ltd. All rights reserved.
	* Copyright (C) 2008-2009 Torch Mobile, 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 COMPUTER, 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 COMPUTER, 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.
	*/

	#include "config.h"
	#include "PluginDatabase.h"

	#include "Frame.h"
	#include "KURL.h"
	#include "PluginPackage.h"
	#include <windows.h>
	#include <shlwapi.h>

	#if COMPILER(MINGW)
	#define _countof(x) (sizeof(x)/sizeof(x[0]))
	#endif

	#if PLATFORM(WINCE)
	// WINCE doesn't support Registry Key Access Rights. The parameter should always be 0
	#define KEY_ENUMERATE_SUB_KEYS 0

	DWORD SHGetValue(HKEY hkey, LPCWSTR pszSubKey, LPCWSTR pszValue, LPDWORD pdwType, LPVOID pvData, LPDWORD pcbData)
	{
	HKEY key;
	if (RegOpenKeyEx(hkey, pszSubKey, 0, 0, &key) == ERROR_SUCCESS) {
	DWORD result = RegQueryValueEx(key, pszValue, 0, pdwType, (LPBYTE)pvData, pcbData);
	RegCloseKey(key);
	return result;
	}
	return ERROR_INVALID_NAME;
	}

	BOOL PathRemoveFileSpec(LPWSTR moduleFileNameStr)
	{
	if (!*moduleFileNameStr)
	return FALSE;

	LPWSTR lastPos = 0;
	LPWSTR curPos = moduleFileNameStr;
	do {
	if (curPos == L'/' \|\| curPos == L'\\')
	lastPos = curPos;
	} while (*++curPos);

	if (lastPos == curPos - 1)
	return FALSE;

	if (lastPos)
	*lastPos = 0;
	else {
	moduleFileNameStr[0] = L'\\';
	moduleFileNameStr[1] = 0;
	}

	return TRUE;
	}
	#endif

	namespace WebCore {

	static inline void addPluginPathsFromRegistry(HKEY rootKey, HashSet<String>& paths)
	{
	HKEY key;
	HRESULT result = RegOpenKeyExW(rootKey, L"Software\\MozillaPlugins", 0, KEY_ENUMERATE_SUB_KEYS, &key);

	if (result != ERROR_SUCCESS)
	return;

	wchar_t name[128];
	FILETIME lastModified;

	// Enumerate subkeys
	for (int i = 0;; i++) {
	DWORD nameLen = _countof(name);
	result = RegEnumKeyExW(key, i, name, &nameLen, 0, 0, 0, &lastModified);

	if (result != ERROR_SUCCESS)
	break;

	WCHAR pathStr[_MAX_PATH];
	DWORD pathStrSize = sizeof(pathStr);
	DWORD type;

	result = SHGetValue(key, name, TEXT("Path"), &type, (LPBYTE)pathStr, &pathStrSize);
	if (result != ERROR_SUCCESS \|\| type != REG_SZ)
	continue;

	paths.add(String(pathStr, pathStrSize / sizeof(WCHAR) - 1));
	}

	RegCloseKey(key);
	}

	void PluginDatabase::getPluginPathsInDirectories(HashSet<String>& paths) const
	{
	// FIXME: This should be a case insensitive set.
	HashSet<String> uniqueFilenames;

	HANDLE hFind = INVALID_HANDLE_VALUE;
	WIN32_FIND_DATAW findFileData;

	String oldWMPPluginPath;
	String newWMPPluginPath;

	Vector<String>::const_iterator end = m_pluginDirectories.end();
	for (Vector<String>::const_iterator it = m_pluginDirectories.begin(); it != end; ++it) {
	String pattern = it + "\\";

	hFind = FindFirstFileW(pattern.charactersWithNullTermination(), &findFileData);

	if (hFind == INVALID_HANDLE_VALUE)
	continue;

	do {
	if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
	continue;

	String filename = String(findFileData.cFileName, wcslen(findFileData.cFileName));
	if ((!filename.startsWith("np", false) \|\| !filename.endsWith("dll", false)) &&
	(!equalIgnoringCase(filename, "Plugin.dll") \|\| !it->endsWith("Shockwave 10", false)))
	continue;

	String fullPath = *it + "\\" + filename;
	if (!uniqueFilenames.add(fullPath).second)
	continue;

	paths.add(fullPath);

	if (equalIgnoringCase(filename, "npdsplay.dll"))
	oldWMPPluginPath = fullPath;
	else if (equalIgnoringCase(filename, "np-mswmp.dll"))
	newWMPPluginPath = fullPath;

	} while (FindNextFileW(hFind, &findFileData) != 0);

	FindClose(hFind);
	}

	addPluginPathsFromRegistry(HKEY_LOCAL_MACHINE, paths);
	addPluginPathsFromRegistry(HKEY_CURRENT_USER, paths);

	// If both the old and new WMP plugin are present in the plugins set,
	// we remove the old one so we don't end up choosing the old one.
	if (!oldWMPPluginPath.isEmpty() && !newWMPPluginPath.isEmpty())
	paths.remove(oldWMPPluginPath);
	}

	static inline Vector<int> parseVersionString(const String& versionString)
	{
	Vector<int> version;

	unsigned startPos = 0;
	unsigned endPos;

	while (startPos < versionString.length()) {
	for (endPos = startPos; endPos < versionString.length(); ++endPos)
	if (versionString[endPos] == '.' \|\| versionString[endPos] == '_')
	break;

	int versionComponent = versionString.substring(startPos, endPos - startPos).toInt();
	version.append(versionComponent);

	startPos = endPos + 1;
	}

	return version;
	}

	// This returns whether versionA is higher than versionB
	static inline bool compareVersions(const Vector<int>& versionA, const Vector<int>& versionB)
	{
	for (unsigned i = 0; i < versionA.size(); i++) {
	if (i >= versionB.size())
	return true;

	if (versionA[i] > versionB[i])
	return true;
	else if (versionA[i] < versionB[i])
	return false;
	}

	// If we come here, the versions are either the same or versionB has an extra component, just return false
	return false;
	}

	static inline void addMozillaPluginDirectories(Vector<String>& directories)
	{
	// Enumerate all Mozilla plugin directories in the registry
	HKEY key;
	LONG result;

	result = RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("Software\\Mozilla"), 0, KEY_READ, &key);
	if (result == ERROR_SUCCESS) {
	WCHAR name[128];
	FILETIME lastModified;

	// Enumerate subkeys
	for (int i = 0;; i++) {
	DWORD nameLen = sizeof(name) / sizeof(WCHAR);
	result = RegEnumKeyExW(key, i, name, &nameLen, 0, 0, 0, &lastModified);

	if (result != ERROR_SUCCESS)
	break;

	String extensionsPath = String(name, nameLen) + "\\Extensions";
	HKEY extensionsKey;

	// Try opening the key
	result = RegOpenKeyEx(key, extensionsPath.charactersWithNullTermination(), 0, KEY_READ, &extensionsKey);

	if (result == ERROR_SUCCESS) {
	// Now get the plugins directory
	WCHAR pluginsDirectoryStr[_MAX_PATH];
	DWORD pluginsDirectorySize = sizeof(pluginsDirectoryStr);
	DWORD type;

	result = RegQueryValueEx(extensionsKey, TEXT("Plugins"), 0, &type, (LPBYTE)&pluginsDirectoryStr, &pluginsDirectorySize);

	if (result == ERROR_SUCCESS && type == REG_SZ)
	directories.append(String(pluginsDirectoryStr, pluginsDirectorySize / sizeof(WCHAR) - 1));

	RegCloseKey(extensionsKey);
	}
	}

	RegCloseKey(key);
	}
	}

	static inline void addWindowsMediaPlayerPluginDirectory(Vector<String>& directories)
	{
	#if !PLATFORM(WINCE)
	// The new WMP Firefox plugin is installed in \PFiles\Plugins if it can't find any Firefox installs
	WCHAR pluginDirectoryStr[_MAX_PATH + 1];
	DWORD pluginDirectorySize = ::ExpandEnvironmentStringsW(TEXT("%SYSTEMDRIVE%\\PFiles\\Plugins"), pluginDirectoryStr, _countof(pluginDirectoryStr));

	if (pluginDirectorySize > 0 && pluginDirectorySize <= _countof(pluginDirectoryStr))
	directories.append(String(pluginDirectoryStr, pluginDirectorySize - 1));
	#endif

	DWORD type;
	WCHAR installationDirectoryStr[_MAX_PATH];
	DWORD installationDirectorySize = sizeof(installationDirectoryStr);

	HRESULT result = SHGetValue(HKEY_LOCAL_MACHINE, TEXT("Software\\Microsoft\\MediaPlayer"), TEXT("Installation Directory"), &type, (LPBYTE)&installationDirectoryStr, &installationDirectorySize);

	if (result == ERROR_SUCCESS && type == REG_SZ)
	directories.append(String(installationDirectoryStr, installationDirectorySize / sizeof(WCHAR) - 1));
	}

	static inline void addQuickTimePluginDirectory(Vector<String>& directories)
	{
	DWORD type;
	WCHAR installationDirectoryStr[_MAX_PATH];
	DWORD installationDirectorySize = sizeof(installationDirectoryStr);

	HRESULT result = SHGetValue(HKEY_LOCAL_MACHINE, TEXT("Software\\Apple Computer, Inc.\\QuickTime"), TEXT("InstallDir"), &type, (LPBYTE)&installationDirectoryStr, &installationDirectorySize);

	if (result == ERROR_SUCCESS && type == REG_SZ) {
	String pluginDir = String(installationDirectoryStr, installationDirectorySize / sizeof(WCHAR) - 1) + "\\plugins";
	directories.append(pluginDir);
	}
	}

	static inline void addAdobeAcrobatPluginDirectory(Vector<String>& directories)
	{
	HKEY key;
	HRESULT result = RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("Software\\Adobe\\Acrobat Reader"), 0, KEY_READ, &key);
	if (result != ERROR_SUCCESS)
	return;

	WCHAR name[128];
	FILETIME lastModified;

	Vector<int> latestAcrobatVersion;
	String latestAcrobatVersionString;

	// Enumerate subkeys
	for (int i = 0;; i++) {
	DWORD nameLen = sizeof(name) / sizeof(WCHAR);
	result = RegEnumKeyExW(key, i, name, &nameLen, 0, 0, 0, &lastModified);

	if (result != ERROR_SUCCESS)
	break;

	Vector<int> acrobatVersion = parseVersionString(String(name, nameLen));
	if (compareVersions(acrobatVersion, latestAcrobatVersion)) {
	latestAcrobatVersion = acrobatVersion;
	latestAcrobatVersionString = String(name, nameLen);
	}
	}

	if (!latestAcrobatVersionString.isNull()) {
	DWORD type;
	WCHAR acrobatInstallPathStr[_MAX_PATH];
	DWORD acrobatInstallPathSize = sizeof(acrobatInstallPathStr);

	String acrobatPluginKeyPath = "Software\\Adobe\\Acrobat Reader\\" + latestAcrobatVersionString + "\\InstallPath";
	result = SHGetValue(HKEY_LOCAL_MACHINE, acrobatPluginKeyPath.charactersWithNullTermination(), 0, &type, (LPBYTE)acrobatInstallPathStr, &acrobatInstallPathSize);

	if (result == ERROR_SUCCESS) {
	String acrobatPluginDirectory = String(acrobatInstallPathStr, acrobatInstallPathSize / sizeof(WCHAR) - 1) + "\\browser";
	directories.append(acrobatPluginDirectory);
	}
	}

	RegCloseKey(key);
	}

	static inline String safariPluginsDirectory()
	{
	WCHAR moduleFileNameStr[_MAX_PATH];
	static String pluginsDirectory;
	static bool cachedPluginDirectory = false;

	if (!cachedPluginDirectory) {
	cachedPluginDirectory = true;

	int moduleFileNameLen = GetModuleFileName(0, moduleFileNameStr, _MAX_PATH);

	if (!moduleFileNameLen \|\| moduleFileNameLen == _MAX_PATH)
	goto exit;

	if (!PathRemoveFileSpec(moduleFileNameStr))
	goto exit;

	pluginsDirectory = String(moduleFileNameStr) + "\\Plugins";
	}
	exit:
	return pluginsDirectory;
	}

	static inline void addMacromediaPluginDirectories(Vector<String>& directories)
	{
	#if !PLATFORM(WINCE)
	WCHAR systemDirectoryStr[MAX_PATH];

	if (GetSystemDirectory(systemDirectoryStr, _countof(systemDirectoryStr)) == 0)
	return;

	WCHAR macromediaDirectoryStr[MAX_PATH];

	PathCombine(macromediaDirectoryStr, systemDirectoryStr, TEXT("macromed\\Flash"));
	directories.append(macromediaDirectoryStr);

	PathCombine(macromediaDirectoryStr, systemDirectoryStr, TEXT("macromed\\Shockwave 10"));
	directories.append(macromediaDirectoryStr);
	#endif
	}

	Vector<String> PluginDatabase::defaultPluginDirectories()
	{
	Vector<String> directories;
	String ourDirectory = safariPluginsDirectory();

	if (!ourDirectory.isNull())
	directories.append(ourDirectory);
	addQuickTimePluginDirectory(directories);
	addAdobeAcrobatPluginDirectory(directories);
	addMozillaPluginDirectories(directories);
	addWindowsMediaPlayerPluginDirectory(directories);
	addMacromediaPluginDirectories(directories);

	return directories;
	}

	bool PluginDatabase::isPreferredPluginDirectory(const String& directory)
	{
	String ourDirectory = safariPluginsDirectory();

	if (!ourDirectory.isNull() && !directory.isNull())
	return ourDirectory == directory;

	return false;
	}

	}