public function securityLevelAction()
 {
     $domain = $this->params('domain');
     $level = $this->params('level');
     if (null === $level) {
         return sprintf("\nSecurity level for \"%s\" domain: %s\n\n", $domain, $this->settingsService->getSecurityLevel($domain));
     }
     $this->settingsService->setSecurityLevel($domain, $level);
     return sprintf("\nSecurity level for domain %s changed\n\n", $domain);
 }