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<?php |
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namespace Iulyanp\MaintenanceBundle\EventListener; |
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use Psr\Log\LoggerInterface; |
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use Symfony\Bundle\FrameworkBundle\Routing\Router; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Symfony\Component\HttpFoundation\RedirectResponse; |
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use Symfony\Component\HttpKernel\Event\GetResponseEvent; |
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use Symfony\Component\HttpKernel\KernelEvents; |
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/** |
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* Class MaintenanceSubscriber. |
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*/ |
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class MaintenanceSubscriber implements EventSubscriberInterface |
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{ |
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/** |
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* @var LoggerInterface |
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*/ |
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private $logger; |
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/** |
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* @var string |
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*/ |
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private $maintenance; |
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/** |
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* MaintenanceSubscriber constructor. |
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* |
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* @param Router $router |
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* @param string $maintenance |
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*/ |
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public function __construct(Router $router, $maintenance) |
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{ |
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$this->router = $router; |
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$this->maintenance = $maintenance; |
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} |
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/** |
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* @return array |
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*/ |
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public static function getSubscribedEvents() |
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{ |
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return [ |
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KernelEvents::REQUEST => 'onKernelRequest', |
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]; |
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} |
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/** |
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* @param GetResponseEvent $event |
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*/ |
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public function onKernelRequest(GetResponseEvent $event) |
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{ |
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if (!$event->isMasterRequest()) { |
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return; |
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} |
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$request = $event->getRequest(); |
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$requestUri = $request->getRequestUri(); |
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$currentRoute = $request->get('_route'); |
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$maintenanceRouteUri = $this->router->generate($this->maintenance['maintenance_route']); |
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if ($this->isInMentenance() && !$this->isDueDate() && $this->maintenance['maintenance_route'] != $currentRoute) { |
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$response = new RedirectResponse($maintenanceRouteUri); |
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$event->setResponse($response); |
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} elseif ((!$this->isInMentenance() || $this->isDueDate()) && $maintenanceRouteUri == $requestUri) { |
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$response = new RedirectResponse('/'); |
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$event->setResponse($response); |
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} |
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} |
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/** |
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* @param LoggerInterface $logger |
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*/ |
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public function setLogger(LoggerInterface $logger) |
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{ |
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$this->logger = $logger; |
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} |
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/** |
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* @return bool |
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*/ |
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private function isInMentenance() |
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{ |
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if (!$this->maintenance['enabled']) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* @return bool |
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*/ |
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private function isDueDate() |
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{ |
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if (!$this->maintenance['due_date']) { |
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return false; |
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} |
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$currentDateTime = new \DateTime(); |
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if ($currentDateTime->getTimestamp() > strtotime($this->maintenance['due_date'])) { |
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return true; |
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} |
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return false; |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: