public static function hasAccess($a_node_id, $a_is_portfolio = false)
 {
     global $ilUser;
     // if we have current user - check with normal access handler
     if ($ilUser->getId() != ANONYMOUS_USER_ID) {
         if (!$a_is_portfolio) {
             include_once "Services/PersonalWorkspace/classes/class.ilWorkspaceAccessHandler.php";
             include_once "Services/PersonalWorkspace/classes/class.ilWorkspaceTree.php";
             $tree = new ilWorkspaceTree($ilUser->getId());
             $access_handler = new ilWorkspaceAccessHandler($tree);
         } else {
             include_once "Services/Portfolio/classes/class.ilPortfolioAccessHandler.php";
             $access_handler = new ilPortfolioAccessHandler();
         }
         if ($access_handler->checkAccess("read", "", $a_node_id)) {
             return true;
         }
     }
     // not logged in yet or no read access
     include_once "Services/PersonalWorkspace/classes/class.ilWorkspaceAccessGUI.php";
     if (!$a_is_portfolio) {
         include_once "Services/PersonalWorkspace/classes/class.ilWorkspaceAccessHandler.php";
         $shared = ilWorkspaceAccessHandler::getPermissions($a_node_id);
     } else {
         include_once "Services/Portfolio/classes/class.ilPortfolioAccessHandler.php";
         $shared = ilPortfolioAccessHandler::getPermissions($a_node_id);
     }
     // object is "public"
     if (in_array(ilWorkspaceAccessGUI::PERMISSION_ALL, $shared)) {
         return true;
     }
     // password protected
     if (in_array(ilWorkspaceAccessGUI::PERMISSION_ALL_PASSWORD, $shared)) {
         if (!$a_is_portfolio) {
             ilUtil::redirect("ilias.php?baseClass=ilSharedResourceGUI&cmd=passwordForm&wsp_id=" . $a_node_id);
         } else {
             ilUtil::redirect("ilias.php?baseClass=ilSharedResourceGUI&cmd=passwordForm&prt_id=" . $a_node_id);
         }
     }
     return false;
 }
 /**
  * Check if current profile portfolio is accessible
  * 
  * @return int
  */
 protected function getProfilePortfolio()
 {
     include_once "Modules/Portfolio/classes/class.ilObjPortfolio.php";
     $portfolio_id = ilObjPortfolio::getDefaultPortfolio($this->getUserId());
     if ($portfolio_id) {
         include_once './Modules/Portfolio/classes/class.ilPortfolioAccessHandler.php';
         $access_handler = new ilPortfolioAccessHandler();
         if ($access_handler->checkAccess("read", "", $portfolio_id)) {
             return $portfolio_id;
         }
     }
 }