src/EventListener/BuildVersionListener.php line 22

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  1. <?php
  3. declare(strict_types=1);
  5. namespace App\EventListener;
  7. use Symfony\Component\HttpFoundation\Response;
  8. use Symfony\Component\HttpKernel\Event\RequestEvent;
  10. final class BuildVersionListener
  11. {
  12.     private const MESSAGE_TEMPLATE_INVALID_VERSION = 'Version conflict: version >= %s expected.';
  13.     private const MESSAGE_TEMPLATE_INVALID_BUILD   = 'Version conflict: build >= %s expected.';
  15.     public function __construct(
  16.         private readonly string $minVersion,
  17.         private readonly string $headerName,
  18.         private readonly array $paths
  19.     ) {
  20.     }
  22.     public function onKernelRequest(RequestEvent $event): void
  23.     {
  24.         if (!$event->isMainRequest()) {
  25.             return;
  26.         }
  28.         $request = $event->getRequest();
  29.         if (
  30.             !$request->headers->has($this->headerName)
  31.             || !$this->matchPath($request->getPathInfo())
  32.         ) {
  33.             return;
  34.         }
  36.         $currentVersion = $this->parseVersion($request->headers->get($this->headerName));
  37.         $minVersion     = $this->parseVersion($this->minVersion);
  38.         switch (true) {
  39.             case version_compare($currentVersion['version'], $minVersion['version'], '<'):
  40.                 $message = sprintf(self::MESSAGE_TEMPLATE_INVALID_VERSION, $minVersion['version']);
  41.                 break;
  42.             case $currentVersion['build'] < $minVersion['build']:
  43.                 $message = sprintf(self::MESSAGE_TEMPLATE_INVALID_BUILD, $minVersion['build']);
  44.                 break;
  45.             default:
  46.                 return;
  47.         }
  49.         $response = new Response($message, Response::HTTP_CONFLICT);
  50.         $event->setResponse($response);
  51.     }
  53.     private function matchPath(string $pathInfo): bool
  54.     {
  55.         foreach ($this->paths as $path) {
  56.             $pattern = sprintf('#%s#ui', $path);
  57.             if (preg_match($pattern, $pathInfo)) {
  58.                 return true;
  59.             }
  60.         }
  62.         return false;
  63.     }
  65.     private function parseVersion(string $version): array
  66.     {
  67.         $data = [
  68.             'version' => $version,
  69.             'build'   => 0,
  70.         ];
  72.         if (preg_match('/^(.*)-(\d+)$/ui', $version, $matches)) {
  73.             $data = [
  74.                 'version' => $matches[1],
  75.                 'build'   => (int)$matches[2],
  76.             ];
  77.         }
  79.         return $data;
  80.     }
  81. }