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<?php |
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namespace Shlinkio\Shlink\Core\Action; |
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use Acelaya\ZsmAnnotatedServices\Annotation\Inject; |
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use Interop\Http\ServerMiddleware\DelegateInterface; |
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use Interop\Http\ServerMiddleware\MiddlewareInterface; |
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use Psr\Http\Message\ResponseInterface as Response; |
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use Psr\Http\Message\ServerRequestInterface as Request; |
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use Shlinkio\Shlink\Common\Service\PreviewGenerator; |
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use Shlinkio\Shlink\Common\Service\PreviewGeneratorInterface; |
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use Shlinkio\Shlink\Common\Util\ResponseUtilsTrait; |
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use Shlinkio\Shlink\Core\Exception\InvalidShortCodeException; |
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use Shlinkio\Shlink\Core\Service\UrlShortener; |
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use Shlinkio\Shlink\Core\Service\UrlShortenerInterface; |
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class PreviewAction implements MiddlewareInterface |
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{ |
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use ResponseUtilsTrait; |
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/** |
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* @var PreviewGeneratorInterface |
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*/ |
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private $previewGenerator; |
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/** |
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* @var UrlShortenerInterface |
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*/ |
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private $urlShortener; |
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/** |
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* PreviewAction constructor. |
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* @param PreviewGeneratorInterface $previewGenerator |
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* @param UrlShortenerInterface $urlShortener |
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* |
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* @Inject({PreviewGenerator::class, UrlShortener::class}) |
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*/ |
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public function __construct(PreviewGeneratorInterface $previewGenerator, UrlShortenerInterface $urlShortener) |
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{ |
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$this->previewGenerator = $previewGenerator; |
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$this->urlShortener = $urlShortener; |
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} |
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/** |
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* Process an incoming server request and return a response, optionally delegating |
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* to the next middleware component to create the response. |
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* |
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* @param Request $request |
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* @param DelegateInterface $delegate |
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* |
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* @return Response |
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*/ |
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public function process(Request $request, DelegateInterface $delegate) |
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{ |
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$shortCode = $request->getAttribute('shortCode'); |
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try { |
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$url = $this->urlShortener->shortCodeToUrl($shortCode); |
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if (! isset($url)) { |
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return $delegate->process($request); |
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} |
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$imagePath = $this->previewGenerator->generatePreview($url); |
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return $this->generateImageResponse($imagePath); |
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} catch (InvalidShortCodeException $e) { |
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return $delegate->process($request); |
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} |
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} |
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} |
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shlinkio /
shlink
