Zf2 ZFCuser currently logged in detection and session timeout support

gistfile1.php

	public function onBootstrap(MvcEvent $e) {
		$eventManager = $e->getApplication ()->getEventManager ();
		$sharedManager = $eventManager->getSharedManager ();
		$sm = $e->getApplication ()->getServiceManager ();
		// This checks to see if the user is logged in.
		$eventManager->attach ( MvcEvent::EVENT_DISPATCH, array (
				$this,
				'checkLogin' 
		), 100 );
	}
	
	// This function is attached to a listener to see if the user is not currenlty logged in
	// If they are not logged in they will be redirected to the login page. This check will happen through the
	// application so there is no need to keep checking in other modules
	public function checkLogin(MvcEvent $e) {
		$session = new Container ( 'defaults' );
		$this->route = $e->getRouteMatch ();
		$this->matchedRouteName = explode ( '/', $this->route->getMatchedRouteName () );
		$this->route_root = $this->matchedRouteName [0];
		$sm = $e->getApplication ()->getServiceManager ();
		$config = $sm->get ( 'config' );
		$sessionlength = $config ['k3s_settings'] ['session_length'];
		$zfcServiceEvents = $sm->get ( 'ZfcUser\Authentication\Adapter\AdapterChain' )->getEventManager ();
		
		$zfcServiceEvents->attach ( 'authenticate', function ($e) use($session) {
			$session->offsetSet ( 'sessionstart', $_SERVER ['REQUEST_TIME'] );
		} );
		
		$auth = $sm->get ( 'zfcuser_auth_service' );
		
		//If the user isn't logged in and isnt on the login page, take them there
		if (! $auth->hasIdentity () && $this->route_root != 'zfcuser') {
			$response = new \Zend\Http\PhpEnvironment\Response ();
			$response->getHeaders ()->addHeaderLine ( 'Location', '/user/login' );
			$response->setStatusCode ( 302 );
			$response->sendHeaders ();
			$e->stopPropagation ( true );
			return $response;
		} 

//Check to see if the session has timed out  and if it has log them out. also check to see it is not the login route so you 
//dont end up in a loop 
		else if ($auth->hasIdentity () && $session->offsetGet ( 'sessionstart' ) < ($_SERVER ['REQUEST_TIME'] - $sessionlength) && $this->route_root != 'zfcuser') {
			$response = new \Zend\Http\PhpEnvironment\Response ();
			$response->getHeaders ()->addHeaderLine ( 'Location', '/user/logout' );
			$response->setStatusCode ( 302 );
			$response->sendHeaders ();
			$e->stopPropagation ( true );
			return $response;
		} 


//This will set the session start time and also set some values used throughout our system. 
		else if ($auth->hasIdentity ()) {
			$session->offsetSet ( 'sessionstart', $_SERVER ['REQUEST_TIME'] );
			$session->offsetSet ( 'defaultbuyr', '02' );
			$session->offsetSet ( 'defaultlocn', '01' );
			$session->offsetSet ( 'role', 'buyer' );
		}
		// echo $sm->get('settings);
	}