public function checkPassword($uid, $password)
 {
     if (!$this->db_conn) {
         $this->connectdb();
     }
     if (!$this->db_conn) {
         return false;
     }
     $query = 'SELECT user_login, user_pass FROM ' . self::$params['wordpress_db_prefix'] . 'users WHERE user_login = "******"', '""', $uid) . '"';
     $query .= ' AND user_status = 0';
     $result = $this->wp_instance->db->query($query);
     if ($result && mysqli_num_rows($result) > 0) {
         $row = mysqli_fetch_assoc($result);
         $hash = $row['user_pass'];
         $normalize_path = str_replace('\\', '/', OC_APP::getAppPath('user_wordpress'));
         $path_array = explode('/', $normalize_path);
         array_pop($path_array);
         $app_folder = array_pop($path_array);
         OC::$CLASSPATH['OC_wordpress'] = $app_folder . '/lib/wordpress.class.php';
         require_once $app_folder . '/user_wordpress/class-phpass.php';
         $wp_hasher = new WPPasswordHash(8, TRUE);
         $check = $wp_hasher->CheckPassword($password, $hash);
         if ($check === true) {
             // Make sure the user is in the wordpress_global_group
             if (self::$params['wordpress_global_group'] != '') {
                 if (!OC_Group::groupExists(self::$params['wordpress_global_group'])) {
                     OC_Group::createGroup(self::$params['wordpress_global_group']);
                 }
                 $UserblogsIds = $this->wp_instance->getUserblogsIds($uid);
                 if (empty($UserblogsIds)) {
                     // remove from group if current user has no access to Wordpress blog/site with the same role name.
                     OC_Group::removefromGroup($uid, self::$params['wordpress_global_group']);
                 } else {
                     OC_Group::addToGroup($uid, self::$params['wordpress_global_group']);
                 }
             }
             $this->setUserInfos($uid);
             return $row['user_login'];
         }
     }
     return false;
 }