PHP Piwik::raiseMemoryLimitIfNecessary方法代码示例

//.........这里部分代码省略.........
			if(!in_array($desired_extension, $extensions))
			{
				$infos['missing_desired_extensions'][] = $desired_extension;
			}
		}

		$desired_functions = array(
			'set_time_limit',
			'mail',
			'parse_ini_file',
			'glob',
		);
		$infos['desired_functions'] = $desired_functions;
		$infos['missing_desired_functions'] = array();
		foreach($desired_functions as $desired_function)
		{
			if(!self::functionExists($desired_function))
			{
				$infos['missing_desired_functions'][] = $desired_function;
			}
		}

		$infos['openurl'] = Piwik_Http::getTransportMethod();

		$infos['gd_ok'] = false;
		if (in_array('gd', $extensions))
		{
			$gdInfo = gd_info();
			$infos['gd_version'] = $gdInfo['GD Version'];
			preg_match('/([0-9]{1})/', $gdInfo['GD Version'], $gdVersion);
			if($gdVersion[0] >= 2)
			{
				$infos['gd_ok'] = true;
			}
		}

		$infos['hasMbstring'] = false;
		$infos['multibyte_ok'] = true;
		if(function_exists('mb_internal_encoding'))
		{
			$infos['hasMbstring'] = true;
			if (((int) ini_get('mbstring.func_overload')) != 0)
			{
				$infos['multibyte_ok'] = false;
			}
		}

		$serverSoftware = isset($_SERVER['SERVER_SOFTWARE']) ? $_SERVER['SERVER_SOFTWARE'] : '';
		$infos['serverVersion'] = addslashes($serverSoftware);
		$infos['serverOs'] = @php_uname();
		$infos['serverTime'] = date('H:i:s');

		$infos['registerGlobals_ok'] = ini_get('register_globals') == 0;
		$infos['memoryMinimum'] = $minimumMemoryLimit;

		$infos['memory_ok'] = true;
		$infos['memoryCurrent'] = '';

		$raised = Piwik::raiseMemoryLimitIfNecessary();
		if(($memoryValue = Piwik::getMemoryLimitValue()) > 0)
		{
			$infos['memoryCurrent'] = $memoryValue.'M';
			$infos['memory_ok'] = $memoryValue >= $minimumMemoryLimit;
		}

		$infos['isWindows'] = Piwik_Common::isWindows();

		$integrityInfo = Piwik::getFileIntegrityInformation();
		$infos['integrity'] = $integrityInfo[0];
		
		$infos['integrityErrorMessages'] = array();
		if(isset($integrityInfo[1]))
		{
			if($infos['integrity'] == false)
			{
				$infos['integrityErrorMessages'][] = '<b>'.Piwik_Translate('General_FileIntegrityWarningExplanation').'</b>';
			}
			$infos['integrityErrorMessages'] = array_merge($infos['integrityErrorMessages'], array_slice($integrityInfo, 1));
		}

		$infos['timezone'] = Piwik::isTimezoneSupportEnabled();

		$infos['tracker_status'] = Piwik_Common::getRequestVar('trackerStatus', 0, 'int');

		$infos['protocol'] = Piwik_ProxyHeaders::getProtocolInformation();
		if(Piwik_Url::getCurrentScheme() == 'http' && $infos['protocol'] !== null)
		{
			$infos['general_infos']['secure_protocol'] = '1';
		}
		if(count($headers = Piwik_ProxyHeaders::getProxyClientHeaders()) > 0)
		{
			$infos['general_infos']['proxy_client_headers'] = $headers;
		}
		if(count($headers = Piwik_ProxyHeaders::getProxyHostHeaders()) > 0)
		{
			$infos['general_infos']['proxy_host_headers'] = $headers;
		}

		return $infos;
	}

	/**
	 * Must be called before dispatch()
	 * - checks that directories are writable,
	 * - loads the configuration file,
	 * - loads the plugin, 
	 * - inits the DB connection,
	 * - etc.
	 */
	function init()
	{
		static $initialized = false;
		if($initialized)
		{
			return;
		}
		$initialized = true;

		try {
			Zend_Registry::set('timer', new Piwik_Timer);
			
			$directoriesToCheck = array(
					'/tmp/',
					'/tmp/templates_c/',
					'/tmp/cache/',
					'/tmp/assets/'
			);
			
			Piwik::checkDirectoriesWritableOrDie($directoriesToCheck);
			Piwik_Common::assignCliParametersToRequest();

			Piwik_Translate::getInstance()->loadEnglishTranslation();

			$exceptionToThrow = false;

			try {
				Piwik::createConfigObject();
			} catch(Exception $e) {
				Piwik_PostEvent('FrontController.NoConfigurationFile', $e, $info = array(), $pending = true);
				$exceptionToThrow = $e;
			}

			if(Zend_Registry::get('config')->General->maintenance_mode == 1
				&& !Piwik_Common::isPhpCliMode())
			{
				throw new Exception("Piwik is in scheduled maintenance. Please come back later.");
			}
			
			$pluginsManager = Piwik_PluginsManager::getInstance();
			$pluginsManager->loadPlugins( Zend_Registry::get('config')->Plugins->Plugins->toArray() );

			if($exceptionToThrow)
			{
				throw $exceptionToThrow;
			}

			try {
				Piwik::createDatabaseObject();
			} catch(Exception $e) {
				Piwik_PostEvent('FrontController.badConfigurationFile', $e, $info = array(), $pending = true);
				throw $e;
			}

			Piwik::createLogObject();
			
			// creating the access object, so that core/Updates/* can enforce Super User and use some APIs
			Piwik::createAccessObject();
			Piwik_PostEvent('FrontController.dispatchCoreAndPluginUpdatesScreen');

			Piwik_PluginsManager::getInstance()->installLoadedPlugins();
			Piwik::install();
			
			// ensure the current Piwik URL is known for later use
			if(method_exists('Piwik', 'getPiwikUrl'))
			{
				$host = Piwik::getPiwikUrl();
			}
			
			Piwik_PostEvent('FrontController.initAuthenticationObject');
			try {
				$authAdapter = Zend_Registry::get('auth');
			} catch(Exception $e){
				throw new Exception("Authentication object cannot be found in the Registry. Maybe the Login plugin is not activated?
									<br />You can activate the plugin by adding:<br />
									<code>Plugins[] = Login</code><br />
									under the <code>[Plugins]</code> section in your config/config.inc.php");
			}
			
			Zend_Registry::get('access')->reloadAccess($authAdapter);
			
			Piwik_Translate::getInstance()->reloadLanguage();

			Piwik::raiseMemoryLimitIfNecessary();

			$pluginsManager->postLoadPlugins();
			
			Piwik_PostEvent('FrontController.checkForUpdates');
		} catch(Exception $e) {
			Piwik_ExitWithMessage($e->getMessage(), false, true);
		}
		
//.........这里部分代码省略.........

	public static function getSystemInformation()
	{
		$minimumPhpVersion = Zend_Registry::get('config')->General->minimum_php_version;
		$minimumMemoryLimit = Zend_Registry::get('config')->General->minimum_memory_limit;

		$infos = array();

		$infos['directories'] = Piwik::checkDirectoriesWritable();
		$infos['phpVersion_minimum'] = $minimumPhpVersion;
		$infos['phpVersion'] = phpversion();
		$infos['phpVersion_ok'] = version_compare( $minimumPhpVersion, $infos['phpVersion']) === -1;

		// critical errors
		$extensions = @get_loaded_extensions();
		$needed_extensions = array(
			'zlib',
			'SPL',
			'iconv',
		);
		$infos['needed_extensions'] = $needed_extensions;
		$infos['missing_extensions'] = array();
		foreach($needed_extensions as $needed_extension)
		{
			if(!in_array($needed_extension, $extensions))
			{
				$infos['missing_extensions'][] = $needed_extension;
			}
		}

		$infos['pdo_ok'] = false;
		if(in_array('PDO', $extensions))
		{
			$infos['pdo_ok'] = true;
		}

		$infos['adapters'] = Piwik_Db::getAdapters();

		$infos['json'] = false;
		if(in_array('json', $extensions))
		{
			$infos['json'] = true;
		}

		$infos['xml'] = false;
		if(in_array('xml', $extensions))
		{
			$infos['xml'] = true;
		}

		// warnings
		$needed_functions = array(
			'set_time_limit',
			'mail',
		);
		$infos['needed_functions'] = $needed_functions;
		$infos['missing_functions'] = array();
		foreach($needed_functions as $needed_function)
		{
			if(!function_exists($needed_function))
			{
				$infos['missing_functions'][] = $needed_function;
			}
		}

		$infos['openurl'] = Piwik::getTransportMethod();

		$infos['gd_ok'] = false;
		if (in_array('gd', $extensions))
		{
			$gdInfo = gd_info();
			$infos['gd_version'] = $gdInfo['GD Version'];
			preg_match('/([0-9]{1})/', $gdInfo['GD Version'], $gdVersion);
			if($gdVersion[0] >= 2)
			{
				$infos['gd_ok'] = true;
			}
		}

		$infos['serverVersion'] = addslashes($_SERVER['SERVER_SOFTWARE']);
		$infos['serverOs'] = @php_uname();
		$infos['serverTime'] = date('H:i:s');

		$infos['registerGlobals_ok'] = ini_get('register_globals') == 0;
		$infos['memoryMinimum'] = $minimumMemoryLimit;

		$infos['memory_ok'] = true;
		// on windows the ini_get is not working?
		$infos['memoryCurrent'] = '?M';

		$raised = Piwik::raiseMemoryLimitIfNecessary();
		if(	$memoryValue = Piwik::getMemoryLimitValue() )
		{
			$infos['memoryCurrent'] = $memoryValue.'M';
			$infos['memory_ok'] = $memoryValue >= $minimumMemoryLimit;
		}

		$infos['isWindows'] = substr(PHP_OS, 0, 3) == 'WIN';

		$infos['protocol_ok'] = true;
		$infos['protocol'] = self::getProtocolInformation();
//.........这里部分代码省略.........

 /**
  * Get system information
  */
 public static function getSystemInformation()
 {
     $minimumPhpVersion = Zend_Registry::get('config')->General->minimum_php_version;
     $minimumMemoryLimit = Zend_Registry::get('config')->General->minimum_memory_limit;
     $infos = array();
     $infos['directories'] = Piwik::checkDirectoriesWritable();
     $infos['phpVersion_minimum'] = $minimumPhpVersion;
     $infos['phpVersion'] = phpversion();
     $infos['phpVersion_ok'] = version_compare($minimumPhpVersion, $infos['phpVersion']) === -1;
     // critical errors
     $extensions = @get_loaded_extensions();
     $needed_extensions = array('zlib', 'SPL', 'iconv', 'Reflection');
     $infos['needed_extensions'] = $needed_extensions;
     $infos['missing_extensions'] = array();
     foreach ($needed_extensions as $needed_extension) {
         if (!in_array($needed_extension, $extensions)) {
             $infos['missing_extensions'][] = $needed_extension;
         }
     }
     $infos['pdo_ok'] = false;
     if (in_array('PDO', $extensions)) {
         $infos['pdo_ok'] = true;
     }
     $infos['adapters'] = Piwik_Db::getAdapters();
     $infos['json'] = false;
     if (in_array('json', $extensions)) {
         $infos['json'] = true;
     }
     $infos['xml'] = false;
     if (in_array('xml', $extensions)) {
         $infos['xml'] = true;
     }
     $needed_functions = array('debug_backtrace', 'create_function');
     $infos['needed_functions'] = $needed_functions;
     $infos['missing_functions'] = array();
     foreach ($needed_functions as $needed_function) {
         if (!self::functionExists($needed_function)) {
             $infos['missing_functions'][] = $needed_function;
         }
     }
     // warnings
     $desired_functions = array('set_time_limit', 'mail', 'parse_ini_file');
     $infos['desired_functions'] = $desired_functions;
     $infos['missing_desired_functions'] = array();
     foreach ($desired_functions as $desired_function) {
         if (!self::functionExists($desired_function)) {
             $infos['missing_desired_functions'][] = $desired_function;
         }
     }
     $infos['openurl'] = Piwik::getTransportMethod();
     $infos['gd_ok'] = false;
     if (in_array('gd', $extensions)) {
         $gdInfo = gd_info();
         $infos['gd_version'] = $gdInfo['GD Version'];
         preg_match('/([0-9]{1})/', $gdInfo['GD Version'], $gdVersion);
         if ($gdVersion[0] >= 2) {
             $infos['gd_ok'] = true;
         }
     }
     $infos['hasMbstring'] = false;
     $infos['multibyte_ok'] = true;
     if (function_exists('mb_internal_encoding')) {
         $infos['hasMbstring'] = true;
         if ((int) ini_get('mbstring.func_overload') != 0) {
             $infos['multibyte_ok'] = false;
         }
     }
     /**
      * @see http://php.net/ip2long
      */
     $infos['isIpv4'] = true;
     if (strpos($_SERVER['REMOTE_ADDR'], ':') !== false) {
         $infos['isIpv4'] = false;
     }
     $infos['serverVersion'] = addslashes($_SERVER['SERVER_SOFTWARE']);
     $infos['serverOs'] = @php_uname();
     $infos['serverTime'] = date('H:i:s');
     $infos['registerGlobals_ok'] = ini_get('register_globals') == 0;
     $infos['memoryMinimum'] = $minimumMemoryLimit;
     $infos['memory_ok'] = true;
     // on windows the ini_get is not working?
     $infos['memoryCurrent'] = '?M';
     $raised = Piwik::raiseMemoryLimitIfNecessary();
     if ($memoryValue = Piwik::getMemoryLimitValue()) {
         $infos['memoryCurrent'] = $memoryValue . 'M';
         $infos['memory_ok'] = $memoryValue >= $minimumMemoryLimit;
     }
     $infos['isWindows'] = strtoupper(substr(PHP_OS, 0, 3)) == 'WIN';
     $infos['protocol_ok'] = true;
     $infos['protocol'] = self::getProtocolInformation();
     if (Piwik_Url::getCurrentScheme() == 'http' && $infos['protocol'] !== null) {
         $infos['protocol_ok'] = false;
     }
     $integrityInfo = Piwik::getFileIntegrityInformation();
     $infos['integrity'] = $integrityInfo[0];
     $infos['integrityErrorMessages'] = array();
     if (isset($integrityInfo[1])) {
//.........这里部分代码省略.........

 /**
  * Must be called before dispatch()
  * - checks that directories are writable,
  * - loads the configuration file,
  * - loads the plugin, 
  * - inits the DB connection,
  * - etc.
  */
 function init()
 {
     try {
         Zend_Registry::set('timer', new Piwik_Timer());
         $directoriesToCheck = array('/tmp', '/tmp/templates_c', '/tmp/cache');
         Piwik::checkDirectoriesWritableOrDie($directoriesToCheck);
         self::assignCliParametersToRequest();
         Piwik_Translate::getInstance()->loadEnglishTranslation();
         $exceptionToThrow = false;
         try {
             Piwik::createConfigObject();
         } catch (Exception $e) {
             Piwik_PostEvent('FrontController.NoConfigurationFile', $e);
             $exceptionToThrow = $e;
         }
         $pluginsManager = Piwik_PluginsManager::getInstance();
         $pluginsManager->setPluginsToLoad(Zend_Registry::get('config')->Plugins->Plugins->toArray());
         if ($exceptionToThrow) {
             throw $exceptionToThrow;
         }
         Piwik_Translate::getInstance()->loadUserTranslation();
         try {
             Piwik::createDatabaseObject();
         } catch (Exception $e) {
             Piwik_PostEvent('FrontController.badConfigurationFile', $e);
             throw $e;
         }
         Piwik::createLogObject();
         // creating the access object, so that core/Updates/* can enforce Super User and use some APIs
         Piwik::createAccessObject();
         Piwik_PostEvent('FrontController.dispatchCoreAndPluginUpdatesScreen');
         Piwik_PluginsManager::getInstance()->installLoadedPlugins();
         Piwik::install();
         Piwik_PostEvent('FrontController.initAuthenticationObject');
         try {
             $authAdapter = Zend_Registry::get('auth');
         } catch (Exception $e) {
             throw new Exception("Authentication object cannot be found in the Registry. Maybe the Login plugin is not activated?\n\t\t\t\t\t\t\t\t\t<br>You can activate the plugin by adding:<br>\n\t\t\t\t\t\t\t\t\t<code>Plugins[] = Login</code><br>\n\t\t\t\t\t\t\t\t\tunder the <code>[Plugins]</code> section in your config/config.inc.php");
         }
         Zend_Registry::get('access')->reloadAccess($authAdapter);
         Piwik::raiseMemoryLimitIfNecessary();
         $pluginsManager->setLanguageToLoad(Piwik_Translate::getInstance()->getLanguageToLoad());
         $pluginsManager->postLoadPlugins();
         Piwik_PostEvent('FrontController.checkForUpdates');
     } catch (Exception $e) {
         Piwik_ExitWithMessage($e->getMessage(), $e->getTraceAsString(), true);
     }
 }

 /**
  * Must be called before dispatch()
  * - checks that directories are writable,
  * - loads the configuration file,
  * - loads the plugin, 
  * - inits the DB connection,
  * - etc.
  */
 function init()
 {
     static $initialized = false;
     if ($initialized) {
         return;
     }
     $initialized = true;
     try {
         Zend_Registry::set('timer', new Piwik_Timer());
         $directoriesToCheck = array('/tmp/', '/tmp/templates_c/', '/tmp/cache/', '/tmp/assets/', '/tmp/tcpdf/');
         Piwik::checkDirectoriesWritableOrDie($directoriesToCheck);
         Piwik_Common::assignCliParametersToRequest();
         Piwik_Translate::getInstance()->loadEnglishTranslation();
         $exceptionToThrow = false;
         try {
             Piwik::createConfigObject();
         } catch (Exception $e) {
             Piwik_PostEvent('FrontController.NoConfigurationFile', $e, $info = array(), $pending = true);
             $exceptionToThrow = $e;
         }
         if (Piwik_Session::isFileBasedSessions()) {
             Piwik_Session::start();
         }
         if (Piwik_Config::getInstance()->General['maintenance_mode'] == 1 && !Piwik_Common::isPhpCliMode()) {
             $format = Piwik_Common::getRequestVar('format', '');
             $exception = new Exception("Piwik is in scheduled maintenance. Please come back later.");
             if (empty($format)) {
                 throw $exception;
             }
             $response = new Piwik_API_ResponseBuilder($format);
             echo $response->getResponseException($exception);
             exit;
         }
         if (!Piwik_Common::isPhpCliMode() && Piwik_Config::getInstance()->General['force_ssl'] == 1 && !Piwik::isHttps()) {
             $url = Piwik_Url::getCurrentUrl();
             $url = str_replace("http://", "https://", $url);
             Piwik_Url::redirectToUrl($url);
         }
         $pluginsManager = Piwik_PluginsManager::getInstance();
         $pluginsToLoad = Piwik_Config::getInstance()->Plugins['Plugins'];
         $pluginsManager->loadPlugins($pluginsToLoad);
         if ($exceptionToThrow) {
             throw $exceptionToThrow;
         }
         try {
             Piwik::createDatabaseObject();
         } catch (Exception $e) {
             if (self::shouldRethrowException()) {
                 throw $e;
             }
             Piwik_PostEvent('FrontController.badConfigurationFile', $e, $info = array(), $pending = true);
             throw $e;
         }
         Piwik::createLogObject();
         // creating the access object, so that core/Updates/* can enforce Super User and use some APIs
         Piwik::createAccessObject();
         Piwik_PostEvent('FrontController.dispatchCoreAndPluginUpdatesScreen');
         Piwik_PluginsManager::getInstance()->installLoadedPlugins();
         Piwik::install();
         // ensure the current Piwik URL is known for later use
         if (method_exists('Piwik', 'getPiwikUrl')) {
             $host = Piwik::getPiwikUrl();
         }
         Piwik_PostEvent('FrontController.initAuthenticationObject');
         try {
             $authAdapter = Zend_Registry::get('auth');
         } catch (Exception $e) {
             throw new Exception("Authentication object cannot be found in the Registry. Maybe the Login plugin is not activated?\n\t\t\t\t\t\t\t\t\t<br />You can activate the plugin by adding:<br />\n\t\t\t\t\t\t\t\t\t<code>Plugins[] = Login</code><br />\n\t\t\t\t\t\t\t\t\tunder the <code>[Plugins]</code> section in your config/config.ini.php");
         }
         Zend_Registry::get('access')->reloadAccess($authAdapter);
         Piwik::raiseMemoryLimitIfNecessary();
         Piwik_Translate::getInstance()->reloadLanguage();
         $pluginsManager->postLoadPlugins();
         Piwik_PostEvent('FrontController.checkForUpdates');
     } catch (Exception $e) {
         if (self::shouldRethrowException()) {
             throw $e;
         }
         Piwik_ExitWithMessage($e->getMessage(), false, true);
     }
     //		Piwik::log('End FrontController->init() - Request: '. var_export($_REQUEST, true));
 }

 /**
  * If the token_auth is found in the $request parameter, 
  * the current session will be authenticated using this token_auth.
  * It will overwrite the previous Auth object.
  * 
  * @param array $request If null, uses the default request ($_GET)
  * @return void
  */
 public static function reloadAuthUsingTokenAuth($request = null)
 {
     // if a token_auth is specified in the API request, we load the right permissions
     $token_auth = Piwik_Common::getRequestVar('token_auth', '', 'string', $request);
     if ($token_auth) {
         Piwik_PostEvent('API.Request.authenticate', $token_auth);
         Zend_Registry::get('access')->reloadAccess();
         Piwik::raiseMemoryLimitIfNecessary();
     }
 }

 /**
  * Must be called before dispatch()
  * - checks that directories are writable,
  * - loads the configuration file,
  * - loads the plugin, 
  * - inits the DB connection,
  * - etc.
  * 
  * @return void 
  */
 function init()
 {
     Zend_Registry::set('timer', new Piwik_Timer());
     $this->checkDirectoriesWritableOrDie();
     $this->assignCliParametersToRequest();
     $exceptionToThrow = false;
     //move into a init() method
     try {
         Piwik::createConfigObject();
     } catch (Exception $e) {
         Piwik_PostEvent('FrontController.NoConfigurationFile', $e);
         $exceptionToThrow = $e;
     }
     Piwik::loadPlugins();
     if ($exceptionToThrow) {
         throw $exceptionToThrow;
     }
     // database object
     Piwik::createDatabaseObject();
     // Create the log objects
     Piwik::createLogObject();
     Piwik::terminateLoadPlugins();
     Piwik::install();
     //		Piwik::printMemoryUsage('Start program');
     // can be used for debug purpose
     $doNotDrop = array(Piwik::prefixTable('access'), Piwik::prefixTable('user'), Piwik::prefixTable('site'), Piwik::prefixTable('archive'), Piwik::prefixTable('logger_api_call'), Piwik::prefixTable('logger_error'), Piwik::prefixTable('logger_exception'), Piwik::prefixTable('logger_message'), Piwik::prefixTable('log_visit'), Piwik::prefixTable('log_link_visit_action'), Piwik::prefixTable('log_action'), Piwik::prefixTable('log_profiling'));
     // Setup the auth object
     Piwik_PostEvent('FrontController.authSetCredentials');
     try {
         $authAdapter = Zend_Registry::get('auth');
     } catch (Exception $e) {
         throw new Exception("Object 'auth' cannot be found in the Registry. Maybe the Login plugin is not enabled?\r\n\t\t\t\t\t\t\t\t<br>You can enable the plugin by adding:<br>\r\n\t\t\t\t\t\t\t\t<code>Plugins[] = Login</code><br>\r\n\t\t\t\t\t\t\t\tunder the <code>[Plugins]</code> section in your config/config.inc.php");
     }
     // Perform the authentication query, saving the result
     $access = new Piwik_Access($authAdapter);
     Zend_Registry::set('access', $access);
     Zend_Registry::get('access')->loadAccess();
     Piwik::raiseMemoryLimitIfNecessary();
 }

 protected function getSystemInformation()
 {
     $minimumPhpVersion = Zend_Registry::get('config')->General->minimum_php_version;
     $minimumMemoryLimit = Zend_Registry::get('config')->General->minimum_memory_limit;
     $infos = array();
     $infos['directories'] = Piwik::checkDirectoriesWritable();
     $infos['phpVersion_minimum'] = $minimumPhpVersion;
     $infos['phpVersion'] = phpversion();
     $infos['phpVersion_ok'] = version_compare($minimumPhpVersion, $infos['phpVersion']) === -1;
     // critical errors
     $extensions = @get_loaded_extensions();
     $needed_extensions = array('PDO', 'pdo_mysql', 'zlib', 'SPL');
     $infos['needed_extensions'] = $needed_extensions;
     $infos['missing_extensions'] = array();
     foreach ($needed_extensions as $needed_extension) {
         if (!in_array($needed_extension, $extensions)) {
             $infos['missing_extensions'][] = $needed_extension;
         }
     }
     // warnings
     $needed_functions = array('set_time_limit', 'mail');
     $infos['needed_functions'] = $needed_functions;
     $infos['missing_functions'] = array();
     foreach ($needed_functions as $needed_function) {
         if (!function_exists($needed_function)) {
             $infos['missing_functions'][] = $needed_function;
         }
     }
     $infos['gd_ok'] = false;
     if (in_array('gd', $extensions)) {
         $gdInfo = gd_info();
         $infos['gd_version'] = $gdInfo['GD Version'];
         preg_match('/([0-9]{1})/', $gdInfo['GD Version'], $gdVersion);
         if ($gdVersion[0] >= 2) {
             $infos['gd_ok'] = true;
         }
     }
     $infos['serverVersion'] = addslashes($_SERVER['SERVER_SOFTWARE']);
     $infos['serverOs'] = @php_uname();
     $infos['serverTime'] = date('H:i:s');
     $infos['registerGlobals_ok'] = ini_get('register_globals') == 0;
     $infos['memoryMinimum'] = $minimumMemoryLimit;
     $infos['memory_ok'] = true;
     // on windows the ini_get is not working?
     $infos['memoryCurrent'] = '?M';
     $raised = Piwik::raiseMemoryLimitIfNecessary();
     if ($memoryValue = Piwik::getMemoryLimitValue()) {
         $infos['memoryCurrent'] = $memoryValue . "M";
         $infos['memory_ok'] = $memoryValue >= $minimumMemoryLimit;
     }
     return $infos;
 }

 /**
  * Must be called before dispatch()
  * - checks that directories are writable,
  * - loads the configuration file,
  * - loads the plugin,
  * - inits the DB connection,
  * - etc.
  * @throws Exception
  * @throws Exception
  * @throws bool|Exception
  * @return
  */
 function init()
 {
     static $initialized = false;
     if ($initialized) {
         return;
     }
     $initialized = true;
     try {
         Zend_Registry::set('timer', new Piwik_Timer());
         $directoriesToCheck = array('/tmp/', '/tmp/templates_c/', '/tmp/cache/', '/tmp/assets/', '/tmp/tcpdf/');
         Piwik::checkDirectoriesWritableOrDie($directoriesToCheck);
         Piwik_Common::assignCliParametersToRequest();
         Piwik_Translate::getInstance()->loadEnglishTranslation();
         $exceptionToThrow = $this->createConfigObject();
         if (Piwik_Session::isFileBasedSessions()) {
             Piwik_Session::start();
         }
         $this->handleMaintenanceMode();
         $this->handleSSLRedirection();
         $pluginsManager = Piwik_PluginsManager::getInstance();
         $pluginsToLoad = Piwik_Config::getInstance()->Plugins['Plugins'];
         $pluginsManager->loadPlugins($pluginsToLoad);
         if ($exceptionToThrow) {
             throw $exceptionToThrow;
         }
         try {
             Piwik::createDatabaseObject();
         } catch (Exception $e) {
             if (self::shouldRethrowException()) {
                 throw $e;
             }
             Piwik_PostEvent('FrontController.badConfigurationFile', $e, $info = array(), $pending = true);
             throw $e;
         }
         Piwik::createLogObject();
         // creating the access object, so that core/Updates/* can enforce Super User and use some APIs
         $this->createAccessObject();
         Piwik_PostEvent('FrontController.dispatchCoreAndPluginUpdatesScreen');
         Piwik_PluginsManager::getInstance()->installLoadedPlugins();
         Piwik::install();
         // ensure the current Piwik URL is known for later use
         if (method_exists('Piwik', 'getPiwikUrl')) {
             $host = Piwik::getPiwikUrl();
         }
         Piwik_PostEvent('FrontController.initAuthenticationObject');
         try {
             $authAdapter = Zend_Registry::get('auth');
         } catch (Exception $e) {
             throw new Exception("Authentication object cannot be found in the Registry. Maybe the Login plugin is not activated?\n\t\t\t\t\t\t\t\t\t<br />You can activate the plugin by adding:<br />\n\t\t\t\t\t\t\t\t\t<code>Plugins[] = Login</code><br />\n\t\t\t\t\t\t\t\t\tunder the <code>[Plugins]</code> section in your config/config.ini.php");
         }
         Zend_Registry::get('access')->reloadAccess($authAdapter);
         // Force the auth to use the token_auth if specified, so that embed dashboard
         // and all other non widgetized controller methods works fine
         if (($token_auth = Piwik_Common::getRequestVar('token_auth', false, 'string')) !== false) {
             Piwik_API_Request::reloadAuthUsingTokenAuth();
         }
         Piwik::raiseMemoryLimitIfNecessary();
         Piwik_Translate::getInstance()->reloadLanguage();
         $pluginsManager->postLoadPlugins();
         Piwik_PostEvent('FrontController.checkForUpdates');
     } catch (Exception $e) {
         if (self::shouldRethrowException()) {
             throw $e;
         }
         Piwik_ExitWithMessage($e->getMessage(), false, true);
     }
     //		Piwik::log('End FrontController->init() - Request: '. var_export($_REQUEST, true));
 }