// server4education shares
        private static function getS4eShares() {
                $shares = array();
                $fp = @fopen("/srv/www/htdocs/".OC::$WEBROOT."/config/s4eshares.config", "r");
                while($line = fgets($fp, 1024)) {
                        $line = trim($line);
                        if($line != "")
                                $shares[] = $line;
                }
                fclose($fp);
                return $shares;
        }



        /**
         * @brief Kick the user
         * @returns true
         *
         * Logout, destroys session
         */
        public static function logout(){
                OC_Hook::emit( "OC_User", "logout", array());
                exec("sudo umount /srv/www/htdocs/".OC::$WEBROOT."/data/".OC_User::getUser()."/files/Home");
                foreach(self::getS4eShares() as $share) {
                        exec("sudo umount /srv/www/htdocs/".OC::$WEBROOT."/data/".OC_User::getUser()."/files/".$share);
                }
// BÖSE?                OC_Helper::rmdirr("/srv/www/htdocs/".OC::$WEBROOT."/data/".OC_User::getUser());
                OC_Helper::rmdirr("/srv/www/htdocs/".OC::$WEBROOT."/data/".OC_User::getUser());
                $_SESSION['user_id'] = false;
                OC_User::unsetMagicInCookie();
                return true;
        }