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<?php |
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declare(strict_types=1); |
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namespace Shlinkio\Shlink\Core\Action; |
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use Endroid\QrCode\QrCode; |
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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 Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\NullLogger; |
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use Shlinkio\Shlink\Common\Response\QrCodeResponse; |
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use Shlinkio\Shlink\Core\Action\Util\ErrorResponseBuilderTrait; |
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use Shlinkio\Shlink\Core\Exception\EntityDoesNotExistException; |
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use Shlinkio\Shlink\Core\Exception\InvalidShortCodeException; |
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use Shlinkio\Shlink\Core\Service\UrlShortenerInterface; |
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use Zend\Expressive\Router\Exception\RuntimeException; |
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use Zend\Expressive\Router\RouterInterface; |
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class QrCodeAction implements MiddlewareInterface |
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{ |
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use ErrorResponseBuilderTrait; |
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private const DEFAULT_SIZE = 300; |
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private const MIN_SIZE = 50; |
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private const MAX_SIZE = 1000; |
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/** @var RouterInterface */ |
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private $router; |
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/** @var UrlShortenerInterface */ |
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private $urlShortener; |
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/** @var LoggerInterface */ |
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private $logger; |
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public function __construct( |
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RouterInterface $router, |
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UrlShortenerInterface $urlShortener, |
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?LoggerInterface $logger = null |
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) { |
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$this->router = $router; |
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$this->urlShortener = $urlShortener; |
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$this->logger = $logger ?: new NullLogger(); |
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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 RequestHandlerInterface $handler |
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* |
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* @return Response |
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* @throws \InvalidArgumentException |
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* @throws RuntimeException |
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*/ |
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public function process(Request $request, RequestHandlerInterface $handler): Response |
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{ |
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// Make sure the short URL exists for this short code |
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$shortCode = $request->getAttribute('shortCode'); |
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$domain = $request->getUri()->getAuthority(); |
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try { |
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$this->urlShortener->shortCodeToUrl($shortCode, $domain); |
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} catch (InvalidShortCodeException | EntityDoesNotExistException $e) { |
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$this->logger->warning('An error occurred while creating QR code. {e}', ['e' => $e]); |
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return $this->buildErrorResponse($request, $handler); |
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} |
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$path = $this->router->generateUri('long-url-redirect', ['shortCode' => $shortCode]); |
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$size = $this->getSizeParam($request); |
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$qrCode = new QrCode((string) $request->getUri()->withPath($path)->withQuery('')); |
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$qrCode->setSize($size); |
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$qrCode->setMargin(0); |
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return new QrCodeResponse($qrCode); |
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} |
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/** |
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* @param Request $request |
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* @return int |
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*/ |
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private function getSizeParam(Request $request): int |
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{ |
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$size = (int) $request->getAttribute('size', self::DEFAULT_SIZE); |
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if ($size < self::MIN_SIZE) { |
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return self::MIN_SIZE; |
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} |
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return $size > self::MAX_SIZE ? self::MAX_SIZE : $size; |
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} |
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} |
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shlinkio /
shlink
