/**
  * @param \Cake\Http\ServerRequest $request The request.
  * @param \Cake\Network\Response $response The response.
  * @param callable $next The next middleware to call.
  * @return \Psr\Http\Message\ResponseInterface A response.
  */
 public function __invoke(ServerRequestInterface $request, ResponseInterface $response, $next)
 {
     $ip = $request->clientIp();
     $Maintenance = new Maintenance();
     if (!$Maintenance->isMaintenanceMode($ip)) {
         return $next($request, $response);
     }
     $response = $this->build($response);
     return $response;
 }