Zend\Mvc\MvcEvent::getRouter PHP Method

    public function getRouter()
    {
        return $this->router;
    }

 public function __invoke(MvcEvent $event)
 {
     if ($event->getRouteMatch()->getMatchedRouteName() === 'oauth/authorize' || $event->getRouteMatch()->getMatchedRouteName() === 'oauth/code') {
         $auth = $this->authentication;
         if (!$auth->hasIdentity()) {
             //redirect to login form before granting permissions - exception would be client_credentials grant type
             $url = $event->getRouter()->assemble([], array('name' => 'dotuser/login'));
             $host = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'on' ? 'https://' : 'http://';
             $host .= $_SERVER['HTTP_HOST'];
             $url = $host . $url . '?redirect=' . urlencode($event->getRequest()->getUriString());
             $response = $event->getResponse();
             $response->getHeaders()->addHeaderLine('Location', $url);
             $response->setStatusCode(302);
             $response->sendHeaders();
             exit;
         } else {
             $identity = $auth->getIdentity();
             $request = $event->getRequest();
             $client_id = $request->getQuery('client_id');
             //check to see if user already ganted permissions and is not revoked to skip the step and redirecting directly
             if ($event->getRouteMatch()->getMatchedRouteName() === 'oauth/authorize') {
                 if ($this->userRevokeStorage->isAuthorized($client_id, $identity->getUsername())) {
                     $newRequest = new \ZF\ContentNegotiation\Request();
                     $newRequest->setMethod(\Zend\Http\Request::METHOD_POST);
                     $newRequest->getPost()->set('authorized', 'yes');
                     $event->setRequest($newRequest);
                 }
             }
         }
     }
 }