Completed
Pull Request — develop (#645)
by Alejandro
05:15
created

QrCodeAction::process()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 18
Code Lines 12

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 12
CRAP Score 2

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 2
eloc 12
c 1
b 0
f 0
nc 2
nop 2
dl 0
loc 18
ccs 12
cts 12
cp 1
crap 2
rs 9.8666
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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 Mezzio\Router\RouterInterface;
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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 RouterInterface $router;
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    private ShortUrlResolverInterface $urlResolver;
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    private LoggerInterface $logger;
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    public function __construct(
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        RouterInterface $router,
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        ShortUrlResolverInterface $urlResolver,
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        ?LoggerInterface $logger = null
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    ) {
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        $this->router = $router;
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        $this->urlResolver = $urlResolver;
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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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            $this->urlResolver->resolveEnabledShortUrl($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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        $path = $this->router->generateUri(RedirectAction::class, ['shortCode' => $identifier->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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     */
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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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