protected function deriveFrontendRoute($parameters)
{
$authorization_key = $this->user->getEmailAuthorizationKey();
$frontend_app_location = rtrim(ProjectConfiguration::getFrontendAppLocation(), '/');
$frontendRouting = new sfPatternRouting(new sfEventDispatcher());
$config = new sfRoutingConfigHandler();
$routes = $config->evaluate(array(sfConfig::get('sf_apps_dir') . '/frontend/config/routing.yml'));
$frontendRouting->setRoutes($routes);
$frontend_route = $frontend_app_location . $frontendRouting->generate('sf_guard_verify', array('key' => $authorization_key));
return $frontend_route;
}
