public static function init()
 {
     // register autoloader
     spl_autoload_register(array('OC', 'autoload'));
     // set some stuff
     //ob_start();
     error_reporting(E_ALL | E_STRICT);
     date_default_timezone_set('Europe/Berlin');
     ini_set('arg_separator.output', '&');
     // calculate the documentroot
     OC::$DOCUMENTROOT = realpath($_SERVER['DOCUMENT_ROOT']);
     OC::$SERVERROOT = str_replace("\\", '/', substr(__FILE__, 0, -13));
     OC::$SUBURI = substr(realpath($_SERVER["SCRIPT_FILENAME"]), strlen(OC::$SERVERROOT));
     $scriptName = $_SERVER["SCRIPT_NAME"];
     if (substr($scriptName, -1) == '/') {
         $scriptName .= 'index.php';
     }
     OC::$WEBROOT = substr($scriptName, 0, strlen($scriptName) - strlen(OC::$SUBURI));
     if (OC::$WEBROOT != '' and OC::$WEBROOT[0] !== '/') {
         OC::$WEBROOT = '/' . OC::$WEBROOT;
     }
     // set the right include path
     set_include_path(OC::$SERVERROOT . '/lib' . PATH_SEPARATOR . OC::$SERVERROOT . '/config' . PATH_SEPARATOR . OC::$SERVERROOT . '/3rdparty' . PATH_SEPARATOR . get_include_path() . PATH_SEPARATOR . OC::$SERVERROOT);
     // redirect to https site if configured
     if (OC_Config::getValue("forcessl", false)) {
         ini_set("session.cookie_secure", "on");
         if (!isset($_SERVER['HTTPS']) or $_SERVER['HTTPS'] != 'on') {
             $url = "https://" . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
             header("Location: {$url}");
             exit;
         }
     }
     ini_set('session.cookie_httponly', '1;');
     session_start();
     // Add the stuff we need always
     OC_Util::addScript("jquery-1.6.4.min");
     OC_Util::addScript("jquery-ui-1.8.14.custom.min");
     OC_Util::addScript("jquery-showpassword");
     OC_Util::addScript("jquery.infieldlabel.min");
     OC_Util::addScript("jquery-tipsy");
     OC_Util::addScript("js");
     //OC_Util::addScript( "multiselect" );
     OC_Util::addScript('search', 'result');
     OC_Util::addStyle("styles");
     OC_Util::addStyle("multiselect");
     OC_Util::addStyle("jquery-ui-1.8.14.custom");
     OC_Util::addStyle("jquery-tipsy");
     $errors = OC_Util::checkServer();
     if (count($errors) > 0) {
         OC_Template::printGuestPage('', 'error', array('errors' => $errors));
         exit;
     }
     // TODO: we should get rid of this one, too
     // WARNING: to make everything even more confusing,
     //   DATADIRECTORY is a var that changes and DATADIRECTORY_ROOT
     //   stays the same, but is set by "datadirectory".
     //   Any questions?
     OC::$CONFIG_DATADIRECTORY = OC_Config::getValue("datadirectory", OC::$SERVERROOT . "/data");
     // User and Groups
     if (!OC_Config::getValue("installed", false)) {
         $_SESSION['user_id'] = '';
     }
     OC_User::useBackend(OC_Config::getValue("userbackend", "database"));
     OC_Group::setBackend(OC_Config::getValue("groupbackend", "database"));
     // Load Apps
     // This includes plugins for users and filesystems as well
     global $RUNTIME_NOAPPS;
     if (!$RUNTIME_NOAPPS) {
         OC_App::loadApps();
     }
     // Was in required file ... put it here
     OC_Filesystem::registerStorageType('local', 'OC_Filestorage_Local', array('datadir' => 'string'));
     // Set up file system unless forbidden
     global $RUNTIME_NOSETUPFS;
     if (!$RUNTIME_NOSETUPFS) {
         OC_Util::setupFS();
     }
     // Last part: connect some hooks
     OC_HOOK::connect('OC_User', 'post_createUser', 'OC_Connector_Sabre_Principal', 'addPrincipal');
     OC_HOOK::connect('OC_User', 'post_deleteUser', 'OC_Connector_Sabre_Principal', 'deletePrincipal');
 }