From d335fa16322724e196bafa32a934de9fcc119f26 Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Tue, 27 Jan 2015 17:09:16 +0100
Subject: [PATCH] Accidentally removed WCF.class.php

---
 .../install/files/lib/system/WCF.class.php    | 853 ++++++++++++++++++
 1 file changed, 853 insertions(+)
 create mode 100644 wcfsetup/install/files/lib/system/WCF.class.php

diff --git a/wcfsetup/install/files/lib/system/WCF.class.php b/wcfsetup/install/files/lib/system/WCF.class.php
new file mode 100644
index 0000000000..2646dad186
--- /dev/null
+++ b/wcfsetup/install/files/lib/system/WCF.class.php
@@ -0,0 +1,853 @@
+<?php
+namespace wcf\system;
+use wcf\data\application\Application;
+use wcf\data\option\OptionEditor;
+use wcf\data\package\Package;
+use wcf\data\package\PackageCache;
+use wcf\data\package\PackageEditor;
+use wcf\system\application\ApplicationHandler;
+use wcf\system\cache\builder\CoreObjectCacheBuilder;
+use wcf\system\cache\builder\PackageUpdateCacheBuilder;
+use wcf\system\cronjob\CronjobScheduler;
+use wcf\system\event\EventHandler;
+use wcf\system\exception\AJAXException;
+use wcf\system\exception\IPrintableException;
+use wcf\system\exception\NamedUserException;
+use wcf\system\exception\PermissionDeniedException;
+use wcf\system\exception\SystemException;
+use wcf\system\language\LanguageFactory;
+use wcf\system\package\PackageInstallationDispatcher;
+use wcf\system\request\RouteHandler;
+use wcf\system\session\SessionFactory;
+use wcf\system\session\SessionHandler;
+use wcf\system\style\StyleHandler;
+use wcf\system\template\TemplateEngine;
+use wcf\system\user\storage\UserStorageHandler;
+use wcf\util\ArrayUtil;
+use wcf\util\ClassUtil;
+use wcf\util\FileUtil;
+use wcf\util\StringUtil;
+
+// try to set a time-limit to infinite
+@set_time_limit(0);
+
+// fix timezone warning issue
+if (!@ini_get('date.timezone')) {
+	@date_default_timezone_set('Europe/London');
+}
+
+// define current wcf version
+define('WCF_VERSION', '2.1.0 Beta 4 (Typhoon)');
+
+// define current unix timestamp
+define('TIME_NOW', time());
+
+// wcf imports
+if (!defined('NO_IMPORTS')) {
+	require_once(WCF_DIR.'lib/core.functions.php');
+}
+
+/**
+ * WCF is the central class for the community framework.
+ * It holds the database connection, access to template and language engine.
+ * 
+ * @author	Marcel Werk
+ * @copyright	2001-2014 WoltLab GmbH
+ * @license	GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
+ * @package	com.woltlab.wcf
+ * @subpackage	system
+ * @category	Community Framework
+ */
+class WCF {
+	/**
+	 * list of currently loaded applications
+	 * @var	array<\wcf\data\application\Application>
+	 */
+	protected static $applications = array();
+	
+	/**
+	 * list of currently loaded application objects
+	 * @var	array<\wcf\system\application\IApplication>
+	 */
+	protected static $applicationObjects = array();
+	
+	/**
+	 * list of autoload directories
+	 * @var	array
+	 */
+	protected static $autoloadDirectories = array();
+	
+	/**
+	 * list of unique instances of each core object
+	 * @var	array<\wcf\system\SingletonFactory>
+	 */
+	protected static $coreObject = array();
+	
+	/**
+	 * list of cached core objects
+	 * @var	array<array>
+	 */
+	protected static $coreObjectCache = array();
+	
+	/**
+	 * database object
+	 * @var	\wcf\system\database\Database
+	 */
+	protected static $dbObj = null;
+	
+	/**
+	 * language object
+	 * @var	\wcf\system\language\Language
+	 */
+	protected static $languageObj = null;
+	
+	/**
+	 * overrides disabled debug mode
+	 * @var	boolean
+	 */
+	protected static $overrideDebugMode = false;
+	
+	/**
+	 * session object
+	 * @var	\wcf\system\session\SessionHandler
+	 */
+	protected static $sessionObj = null;
+	
+	/**
+	 * template object
+	 * @var	\wcf\system\template\TemplateEngine
+	 */
+	protected static $tplObj = null;
+	
+	/**
+	 * true if Zend Opcache is loaded and enabled
+	 * @var	boolean
+	 */
+	protected static $zendOpcacheEnabled = null;
+	
+	/**
+	 * Calls all init functions of the WCF class.
+	 */
+	public function __construct() {
+		// add autoload directory
+		self::$autoloadDirectories['wcf'] = WCF_DIR . 'lib/';
+		
+		// define tmp directory
+		if (!defined('TMP_DIR')) define('TMP_DIR', FileUtil::getTempFolder());
+		
+		// start initialization
+		$this->initMagicQuotes();
+		$this->initDB();
+		$this->loadOptions();
+		$this->initSession();
+		$this->initLanguage();
+		$this->initTPL();
+		$this->initCronjobs();
+		$this->initCoreObjects();
+		$this->initApplications();
+		$this->initBlacklist();
+		
+		EventHandler::getInstance()->fireAction($this, 'initialized');
+	}
+	
+	/**
+	 * Replacement of the "__destruct()" method.
+	 * Seems that under specific conditions (windows) the destructor is not called automatically.
+	 * So we use the php register_shutdown_function to register an own destructor method.
+	 * Flushs the output, closes caches and updates the session.
+	 */
+	public static function destruct() {
+		try {
+			// database has to be initialized
+			if (!is_object(self::$dbObj)) return;
+			
+			// flush output
+			if (ob_get_level() && ini_get('output_handler')) {
+				ob_flush();
+			}
+			else {
+				flush();
+			}
+			
+			// update session
+			if (is_object(self::getSession())) {
+				self::getSession()->update();
+			}
+			
+			// execute shutdown actions of user storage handler
+			UserStorageHandler::getInstance()->shutdown();
+		}
+		catch (\Exception $exception) {
+			die("<pre>WCF::destruct() Unhandled exception: ".$exception->getMessage()."\n\n".$exception->getTraceAsString());
+		}
+	}
+	
+	/**
+	 * Removes slashes in superglobal gpc data arrays if 'magic quotes gpc' is enabled.
+	 */
+	protected function initMagicQuotes() {
+		if (function_exists('get_magic_quotes_gpc')) {
+			if (@get_magic_quotes_gpc()) {
+				if (!empty($_REQUEST)) {
+					$_REQUEST = ArrayUtil::stripslashes($_REQUEST);
+				}
+				if (!empty($_POST)) {
+					$_POST = ArrayUtil::stripslashes($_POST);
+				}
+				if (!empty($_GET)) {
+					$_GET = ArrayUtil::stripslashes($_GET);
+				}
+				if (!empty($_COOKIE)) {
+					$_COOKIE = ArrayUtil::stripslashes($_COOKIE);
+				}
+				if (!empty($_FILES)) {
+					foreach ($_FILES as $name => $attributes) {
+						foreach ($attributes as $key => $value) {
+							if ($key != 'tmp_name') {
+								$_FILES[$name][$key] = ArrayUtil::stripslashes($value);
+							}
+						}
+					}
+				}
+			}
+		}
+		
+		if (function_exists('set_magic_quotes_runtime')) {
+			@set_magic_quotes_runtime(0);
+		}
+	}
+	
+	/**
+	 * Returns the database object.
+	 * 
+	 * @return	\wcf\system\database\Database
+	 */
+	public static final function getDB() {
+		return self::$dbObj;
+	}
+	
+	/**
+	 * Returns the session object.
+	 * 
+	 * @return	\wcf\system\session\SessionHandler
+	 */
+	public static final function getSession() {
+		return self::$sessionObj;
+	}
+	
+	/**
+	 * Returns the user object.
+	 * 
+	 * @return	\wcf\data\user\User
+	 */
+	public static final function getUser() {
+		return self::getSession()->getUser();
+	}
+	
+	/**
+	 * Returns the language object.
+	 * 
+	 * @return	\wcf\data\language\Language
+	 */
+	public static final function getLanguage() {
+		return self::$languageObj;
+	}
+	
+	/**
+	 * Returns the template object.
+	 * 
+	 * @return	\wcf\system\template\TemplateEngine
+	 */
+	public static final function getTPL() {
+		return self::$tplObj;
+	}
+	
+	/**
+	 * Calls the show method on the given exception.
+	 * 
+	 * @param	\Exception	$e
+	 */
+	public static final function handleException(\Exception $e) {
+		try {
+			if ($e instanceof IPrintableException) {
+				$e->show();
+				exit;
+			}
+			
+			// repack Exception
+			self::handleException(new SystemException($e->getMessage(), $e->getCode(), '', $e));
+		}
+		catch (\Exception $exception) {
+			die("<pre>WCF::handleException() Unhandled exception: ".$exception->getMessage()."\n\n".$exception->getTraceAsString());
+		}
+	}
+	
+	/**
+	 * Catches php errors and throws instead a system exception.
+	 * 
+	 * @param	integer		$errorNo
+	 * @param	string		$message
+	 * @param	string		$filename
+	 * @param	integer		$lineNo
+	 */
+	public static final function handleError($errorNo, $message, $filename, $lineNo) {
+		if (error_reporting() != 0) {
+			$type = 'error';
+			switch ($errorNo) {
+				case 2: $type = 'warning';
+					break;
+				case 8: $type = 'notice';
+					break;
+			}
+			
+			throw new SystemException('PHP '.$type.' in file '.$filename.' ('.$lineNo.'): '.$message, 0);
+		}
+	}
+	
+	/**
+	 * Loads the database configuration and creates a new connection to the database.
+	 */
+	protected function initDB() {
+		// get configuration
+		$dbHost = $dbUser = $dbPassword = $dbName = '';
+		$dbPort = 0;
+		$dbClass = 'wcf\system\database\MySQLDatabase';
+		require(WCF_DIR.'config.inc.php');
+		
+		// create database connection
+		self::$dbObj = new $dbClass($dbHost, $dbUser, $dbPassword, $dbName, $dbPort);
+	}
+	
+	/**
+	 * Loads the options file, automatically created if not exists.
+	 */
+	protected function loadOptions() {
+		$filename = WCF_DIR.'options.inc.php';
+		
+		// create options file if doesn't exist
+		if (!file_exists($filename) || filemtime($filename) <= 1) {
+			OptionEditor::rebuild();
+		}
+		require_once($filename);
+	}
+	
+	/**
+	 * Starts the session system.
+	 */
+	protected function initSession() {
+		$factory = new SessionFactory();
+		$factory->load();
+		
+		self::$sessionObj = SessionHandler::getInstance();
+	}
+	
+	/**
+	 * Initialises the language engine.
+	 */
+	protected function initLanguage() {
+		if (isset($_GET['l']) && !self::getUser()->userID) {
+			self::getSession()->setLanguageID(intval($_GET['l']));
+		}
+		
+		// set mb settings
+		mb_internal_encoding('UTF-8');
+		if (function_exists('mb_regex_encoding')) mb_regex_encoding('UTF-8');
+		mb_language('uni');
+		
+		// get language
+		self::$languageObj = LanguageFactory::getInstance()->getUserLanguage(self::getSession()->getLanguageID());
+	}
+	
+	/**
+	 * Initialises the template engine.
+	 */
+	protected function initTPL() {
+		self::$tplObj = TemplateEngine::getInstance();
+		self::getTPL()->setLanguageID(self::getLanguage()->languageID);
+		$this->assignDefaultTemplateVariables();
+		
+		$this->initStyle();
+	}
+	
+	/**
+	 * Initializes the user's style.
+	 */
+	protected function initStyle() {
+		if (isset($_REQUEST['styleID'])) {
+			self::getSession()->setStyleID(intval($_REQUEST['styleID']));
+		}
+		
+		StyleHandler::getInstance()->changeStyle(self::getSession()->getStyleID());
+	}
+	
+	/**
+	 * Executes the blacklist.
+	 */
+	protected function initBlacklist() {
+		if (defined('BLACKLIST_IP_ADDRESSES') && BLACKLIST_IP_ADDRESSES != '') {
+			if (!StringUtil::executeWordFilter(self::getSession()->ipAddress, BLACKLIST_IP_ADDRESSES)) {
+				throw new PermissionDeniedException();
+			}
+		}
+		if (defined('BLACKLIST_USER_AGENTS') && BLACKLIST_USER_AGENTS != '') {
+			if (!StringUtil::executeWordFilter(self::getSession()->userAgent, BLACKLIST_USER_AGENTS)) {
+				throw new PermissionDeniedException();
+			}
+		}
+		if (defined('BLACKLIST_HOSTNAMES') && BLACKLIST_HOSTNAMES != '') {
+			if (!StringUtil::executeWordFilter(@gethostbyaddr(self::getSession()->ipAddress), BLACKLIST_HOSTNAMES)) {
+				throw new PermissionDeniedException();
+			}
+		}
+		
+		// handle banned users
+		if (self::getUser()->userID && self::getUser()->banned) {
+			if (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && ($_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest')) {
+				throw new AJAXException(self::getLanguage()->getDynamicVariable('wcf.user.error.isBanned'), AJAXException::INSUFFICIENT_PERMISSIONS);
+			}
+			else {
+				throw new NamedUserException(self::getLanguage()->getDynamicVariable('wcf.user.error.isBanned'));
+			}
+		}
+	}
+	
+	/**
+	 * Initializes applications.
+	 */
+	protected function initApplications() {
+		// step 1) load all applications
+		$loadedApplications = array();
+		
+		// register WCF as application
+		self::$applications['wcf'] = ApplicationHandler::getInstance()->getWCF();
+		
+		if (PACKAGE_ID == 1) {
+			return;
+		}
+		
+		// start main application
+		$application = ApplicationHandler::getInstance()->getActiveApplication();
+		$loadedApplications[] = $this->loadApplication($application);
+		
+		// register primary application
+		$abbreviation = ApplicationHandler::getInstance()->getAbbreviation($application->packageID);
+		self::$applications[$abbreviation] = $application;
+		
+		// start dependent applications
+		$applications = ApplicationHandler::getInstance()->getDependentApplications();
+		foreach ($applications as $application) {
+			$loadedApplications[] = $this->loadApplication($application, true);
+		}
+		
+		// step 2) run each application
+		if (!class_exists('wcf\system\WCFACP', false)) {
+			foreach ($loadedApplications as $application) {
+				$application->__run();
+			}
+			
+			// refresh the session 1 minute before it expires
+			self::getTPL()->assign('__sessionKeepAlive', (SESSION_TIMEOUT - 60));
+		}
+	}
+	
+	/**
+	 * Loads an application.
+	 * 
+	 * @param	\wcf\data\application\Application		$application
+	 * @param	boolean						$isDependentApplication
+	 * @return	\wcf\system\application\IApplication
+	 */
+	protected function loadApplication(Application $application, $isDependentApplication = false) {
+		$applicationObject = null;
+		$package = PackageCache::getInstance()->getPackage($application->packageID);
+		// package cache might be outdated
+		if ($package === null) {
+			$package = new Package($application->packageID);
+			
+			// package cache is outdated, discard cache
+			if ($package->packageID) {
+				PackageEditor::resetCache();
+			}
+			else {
+				// package id is invalid
+				throw new SystemException("application identified by package id '".$application->packageID."' is unknown");
+			}
+		}
+			
+		$abbreviation = ApplicationHandler::getInstance()->getAbbreviation($application->packageID);
+		$packageDir = FileUtil::getRealPath(WCF_DIR.$package->packageDir);
+		self::$autoloadDirectories[$abbreviation] = $packageDir . 'lib/';
+		
+		$className = $abbreviation.'\system\\'.strtoupper($abbreviation).'Core';
+		if (class_exists($className) && ClassUtil::isInstanceOf($className, 'wcf\system\application\IApplication')) {
+			// include config file
+			$configPath = $packageDir . PackageInstallationDispatcher::CONFIG_FILE;
+			if (file_exists($configPath)) {
+				require_once($configPath);
+			}
+			else {
+				throw new SystemException('Unable to load configuration for '.$package->package);
+			}
+			
+			// register template path if not within ACP
+			if (!class_exists('wcf\system\WCFACP', false)) {
+				// add template path and abbreviation
+				$this->getTPL()->addApplication($abbreviation, $packageDir . 'templates/');
+			}
+			
+			// init application and assign it as template variable
+			self::$applicationObjects[$application->packageID] = call_user_func(array($className, 'getInstance'));
+			$this->getTPL()->assign('__'.$abbreviation, self::$applicationObjects[$application->packageID]);
+		}
+		else {
+			unset(self::$autoloadDirectories[$abbreviation]);
+			throw new SystemException("Unable to run '".$package->package."', '".$className."' is missing or does not implement 'wcf\system\application\IApplication'.");
+		}
+		
+		// register template path in ACP
+		if (class_exists('wcf\system\WCFACP', false)) {
+			$this->getTPL()->addApplication($abbreviation, $packageDir . 'acp/templates/');
+		}
+		else if (!$isDependentApplication) {
+			// assign base tag
+			$this->getTPL()->assign('baseHref', $application->getPageURL());
+		}
+		
+		// register application
+		self::$applications[$abbreviation] = $application;
+		
+		return self::$applicationObjects[$application->packageID];
+	}
+	
+	/**
+	 * Returns the corresponding application object. Does not support the 'wcf' pseudo application.
+	 * 
+	 * @param	wcf\data\application\Application	$application
+	 * @return	\wcf\system\application\IApplication
+	 */
+	public static function getApplicationObject(Application $application) {
+		if (isset(self::$applicationObjects[$application->packageID])) {
+			return self::$applicationObjects[$application->packageID];
+		}
+		
+		return null;
+	}
+	
+	/**
+	 * Loads an application on runtime, do not use this outside the package installation.
+	 * 
+	 * @param	integer		$packageID
+	 */
+	public static function loadRuntimeApplication($packageID) {
+		$package = new Package($packageID);
+		$application = new Application($packageID);
+		
+		$abbreviation = Package::getAbbreviation($package->package);
+		$packageDir = FileUtil::getRealPath(WCF_DIR.$package->packageDir);
+		self::$autoloadDirectories[$abbreviation] = $packageDir . 'lib/';
+		self::$applications[$abbreviation] = $application;
+		self::getTPL()->addApplication($abbreviation, $packageDir . 'acp/templates/');
+	}
+	
+	/**
+	 * Initializes core object cache.
+	 */
+	protected function initCoreObjects() {
+		// ignore core objects if installing WCF
+		if (PACKAGE_ID == 0) {
+			return;
+		}
+		
+		self::$coreObjectCache = CoreObjectCacheBuilder::getInstance()->getData();
+	}
+	
+	/**
+	 * Assigns some default variables to the template engine.
+	 */
+	protected function assignDefaultTemplateVariables() {
+		self::getTPL()->registerPrefilter(array('event', 'hascontent', 'lang'));
+		self::getTPL()->assign(array(
+			'__wcf' => $this,
+			'__wcfVersion' => LAST_UPDATE_TIME // @deprecated since 2.1, use LAST_UPDATE_TIME directly
+		));
+	}
+	
+	/**
+	 * Wrapper for the getter methods of this class.
+	 * 
+	 * @param	string		$name
+	 * @return	mixed		value
+	 */
+	public function __get($name) {
+		$method = 'get'.ucfirst($name);
+		if (method_exists($this, $method)) {
+			return $this->$method();
+		}
+		
+		throw new SystemException("method '".$method."' does not exist in class WCF");
+	}
+	
+	/**
+	 * Changes the active language.
+	 * 
+	 * @param	integer		$languageID
+	 */
+	public static final function setLanguage($languageID) {
+		self::$languageObj = LanguageFactory::getInstance()->getLanguage($languageID);
+		self::getTPL()->setLanguageID(self::getLanguage()->languageID);
+	}
+	
+	/**
+	 * Includes the required util or exception classes automatically.
+	 * 
+	 * @param	string		$className
+	 * @see		spl_autoload_register()
+	 */
+	public static final function autoload($className) {
+		$namespaces = explode('\\', $className);
+		if (count($namespaces) > 1) {
+			$applicationPrefix = array_shift($namespaces);
+			if ($applicationPrefix === '') {
+				$applicationPrefix = array_shift($namespaces);
+			}
+			if (isset(self::$autoloadDirectories[$applicationPrefix])) {
+				$classPath = self::$autoloadDirectories[$applicationPrefix] . implode('/', $namespaces) . '.class.php';
+				if (file_exists($classPath)) {
+					require_once($classPath);
+				}
+			}
+		}
+	}
+	
+	/**
+	 * @see	\wcf\system\WCF::__callStatic()
+	 */
+	public final function __call($name, array $arguments) {
+		// bug fix to avoid php crash, see http://bugs.php.net/bug.php?id=55020
+		if (!method_exists($this, $name)) {
+			return self::__callStatic($name, $arguments);
+		}
+		
+		return $this->$name($arguments);
+	}
+	
+	/**
+	 * Returns dynamically loaded core objects.
+	 * 
+	 * @param	string		$name
+	 * @param	array		$arguments
+	 */
+	public static final function __callStatic($name, array $arguments) {
+		$className = preg_replace('~^get~', '', $name);
+		
+		if (isset(self::$coreObject[$className])) {
+			return self::$coreObject[$className];
+		}
+		
+		$objectName = self::getCoreObject($className);
+		if ($objectName === null) {
+			throw new SystemException("Core object '".$className."' is unknown.");
+		}
+		
+		if (class_exists($objectName)) {
+			if (!(ClassUtil::isInstanceOf($objectName, 'wcf\system\SingletonFactory'))) {
+				throw new SystemException("class '".$objectName."' does not implement the interface 'SingletonFactory'");
+			}
+			
+			self::$coreObject[$className] = call_user_func(array($objectName, 'getInstance'));
+			return self::$coreObject[$className];
+		}
+	}
+	
+	/**
+	 * Searches for cached core object definition.
+	 * 
+	 * @param	string		$className
+	 * @return	string
+	 */
+	protected static final function getCoreObject($className) {
+		if (isset(self::$coreObjectCache[$className])) {
+			return self::$coreObjectCache[$className];
+		}
+		
+		return null;
+	}
+	
+	/**
+	 * Returns true if the debug mode is enabled, otherwise false.
+	 * 
+	 * @param	boolean		$ignoreACP
+	 * @return	boolean
+	 */
+	public static function debugModeIsEnabled($ignoreACP = false) {
+		// ACP override
+		if (!$ignoreACP && self::$overrideDebugMode) {
+			return true;
+		}
+		else if (defined('ENABLE_DEBUG_MODE') && ENABLE_DEBUG_MODE) {
+			return true;
+		}
+		
+		return false;
+	}
+	
+	/**
+	 * Returns true if benchmarking is enabled, otherwise false.
+	 * 
+	 * @return	boolean
+	 */
+	public static function benchmarkIsEnabled() {
+		// benchmarking is enabled by default
+		if (!defined('ENABLE_BENCHMARK') || ENABLE_BENCHMARK) return true;
+		return false;
+	}
+	
+	/**
+	 * Returns domain path for given application.
+	 * 
+	 * @param	string		$abbreviation
+	 * @return	string
+	 */
+	public static function getPath($abbreviation = 'wcf') {
+		// workaround during WCFSetup
+		if (!PACKAGE_ID) {
+			return '../';
+		}
+		
+		if (!isset(self::$applications[$abbreviation])) {
+			$abbreviation = 'wcf';
+		}
+		
+		return self::$applications[$abbreviation]->getPageURL();
+	}
+	
+	/**
+	 * Returns a fully qualified anchor for current page.
+	 * 
+	 * @param	string		$fragment
+	 * @return	string
+	 */
+	public function getAnchor($fragment) {
+		return self::getRequestURI() . '#' . $fragment;
+	}
+	
+	/**
+	 * Returns the URI of the current page.
+	 * 
+	 * @return	string
+	 */
+	public static function getRequestURI() {
+		if (URL_LEGACY_MODE) {
+			// resolve path and query components
+			$scriptName = $_SERVER['SCRIPT_NAME'];
+			$pathInfo = RouteHandler::getPathInfo();
+			if (empty($pathInfo)) {
+				// bug fix if URL omits script name and path
+				$scriptName = substr($scriptName, 0, strrpos($scriptName, '/'));
+			}
+			
+			$path = str_replace('/index.php', '', str_replace($scriptName, '', $_SERVER['REQUEST_URI']));
+			if (!StringUtil::isUTF8($path)) {
+				$path = StringUtil::convertEncoding('ISO-8859-1', 'UTF-8', $path);
+			}
+			$path = FileUtil::removeLeadingSlash($path);
+			$baseHref = self::getTPL()->get('baseHref');
+			
+			if (!empty($path) && mb_strpos($path, '?') !== 0) {
+				$baseHref .= 'index.php/';
+			}
+			
+			return $baseHref . $path;
+		}
+		else {
+			$queryString = $_SERVER['QUERY_STRING'];
+			if (!StringUtil::isUTF8($queryString)) {
+				$queryString = StringUtil::convertEncoding('ISO-8859-1', 'UTF-8', $queryString);
+			}
+			
+			return self::getTPL()->get('baseHref') . ($queryString ? '?' . $queryString : '');
+		}
+	}
+	
+	/**
+	 * Resets Zend Opcache cache if installed and enabled.
+	 * 
+	 * @param	string		$script
+	 */
+	public static function resetZendOpcache($script = '') {
+		if (self::$zendOpcacheEnabled === null) {
+			self::$zendOpcacheEnabled = false;
+			
+			if (extension_loaded('Zend Opcache') && @ini_get('opcache.enable')) {
+				self::$zendOpcacheEnabled = true;
+			}
+			
+		}
+		
+		if (self::$zendOpcacheEnabled) {
+			if (empty($script)) {
+				opcache_reset();
+			}
+			else {
+				opcache_invalidate($script, true);
+			}
+		}
+	}
+	
+	/**
+	 * Returns style handler.
+	 * 
+	 * @return	\wcf\system\style\StyleHandler
+	 */
+	public function getStyleHandler() {
+		return StyleHandler::getInstance();
+	}
+	
+	/**
+	 * Returns number of available updates.
+	 * 
+	 * @return	integer
+	 */
+	public function getAvailableUpdates() {
+		$data = PackageUpdateCacheBuilder::getInstance()->getData();
+		return $data['updates'];
+	}
+	
+	/**
+	 * Returns a 8 character prefix for editor autosave.
+	 * 
+	 * @return	string
+	 */
+	public function getAutosavePrefix() {
+		return substr(sha1(preg_replace('~^https~', 'http', self::getPath())), 0, 8);
+	}
+	
+	/**
+	 * Returns the favicon URL or a base64 encoded image.
+	 * 
+	 * @return	string
+	 */
+	public function getFavicon() {
+		$activeApplication = ApplicationHandler::getInstance()->getActiveApplication();
+		$primaryApplication = ApplicationHandler::getInstance()->getPrimaryApplication();
+		
+		if ($activeApplication->domainName != $primaryApplication->domainName) {
+			if (file_exists(WCF_DIR.'images/favicon.ico')) {
+				$favicon = file_get_contents(WCF_DIR.'images/favicon.ico');
+				
+				return 'data:image/x-icon;base64,' . base64_encode($favicon);
+			}
+		}
+		
+		return self::getPath() . 'images/favicon.ico';
+	}
+	
+	/**
+	 * Initialises the cronjobs.
+	 */
+	protected function initCronjobs() {
+		if (PACKAGE_ID) {
+			self::getTPL()->assign('executeCronjobs', (CronjobScheduler::getInstance()->getNextExec() < TIME_NOW && defined('OFFLINE') && !OFFLINE));
+		}
+	}
+}
-- 
2.20.1