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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 Endroid\QrCode\Writer\SvgWriter; |
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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\Exception\ShortUrlNotFoundException; |
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use Shlinkio\Shlink\Core\Model\ShortUrlIdentifier; |
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use Shlinkio\Shlink\Core\Service\ShortUrl\ShortUrlResolverInterface; |
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class QrCodeAction implements MiddlewareInterface |
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{ |
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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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private ShortUrlResolverInterface $urlResolver; |
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private array $domainConfig; |
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private LoggerInterface $logger; |
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public function __construct( |
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ShortUrlResolverInterface $urlResolver, |
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array $domainConfig, |
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?LoggerInterface $logger = null |
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) { |
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$this->urlResolver = $urlResolver; |
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$this->domainConfig = $domainConfig; |
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$this->logger = $logger ?? new NullLogger(); |
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} |
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public function process(Request $request, RequestHandlerInterface $handler): Response |
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{ |
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$identifier = ShortUrlIdentifier::fromRedirectRequest($request); |
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try { |
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$shortUrl = $this->urlResolver->resolveEnabledShortUrl($identifier); |
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} catch (ShortUrlNotFoundException $e) { |
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$this->logger->warning('An error occurred while creating QR code. {e}', ['e' => $e]); |
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return $handler->handle($request); |
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} |
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$query = $request->getQueryParams(); |
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// Size attribute is deprecated |
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$size = $this->normalizeSize((int) $request->getAttribute('size', $query['size'] ?? self::DEFAULT_SIZE)); |
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$qrCode = new QrCode($shortUrl->toString($this->domainConfig)); |
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$qrCode->setSize($size); |
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$qrCode->setMargin(0); |
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$format = $query['format'] ?? 'png'; |
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if ($format === 'svg') { |
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$qrCode->setWriter(new SvgWriter()); |
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} |
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5 |
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return new QrCodeResponse($qrCode); |
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} |
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private function normalizeSize(int $size): int |
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{ |
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if ($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
