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<?php |
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declare(strict_types=1); |
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namespace Shlinkio\Shlink\Core\Response; |
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use Fig\Http\Message\StatusCodeInterface; |
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use InvalidArgumentException; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\UriInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use Shlinkio\Shlink\Core\Action\RedirectAction; |
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use Shlinkio\Shlink\Core\Options\NotFoundRedirectOptions; |
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use Zend\Diactoros\Response; |
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use Zend\Expressive\Router\RouteResult; |
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use Zend\Expressive\Template\TemplateRendererInterface; |
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use function array_shift; |
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use function explode; |
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use function Functional\contains; |
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use function rtrim; |
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class NotFoundHandler implements RequestHandlerInterface |
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{ |
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public const NOT_FOUND_TEMPLATE = 'ShlinkCore::error/404'; |
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public const INVALID_SHORT_CODE_TEMPLATE = 'ShlinkCore::invalid-short-code'; |
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/** @var TemplateRendererInterface */ |
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private $renderer; |
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/** @var NotFoundRedirectOptions */ |
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private $redirectOptions; |
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/** @var string */ |
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private $shlinkBasePath; |
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public function __construct( |
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TemplateRendererInterface $renderer, |
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NotFoundRedirectOptions $redirectOptions, |
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string $shlinkBasePath |
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) { |
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$this->renderer = $renderer; |
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$this->redirectOptions = $redirectOptions; |
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$this->shlinkBasePath = $shlinkBasePath; |
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} |
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/** |
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* Dispatch the next available middleware and return the response. |
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* |
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* @param ServerRequestInterface $request |
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* |
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* @return ResponseInterface |
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* @throws InvalidArgumentException |
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*/ |
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public function handle(ServerRequestInterface $request): ResponseInterface |
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{ |
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/** @var RouteResult $routeResult */ |
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$routeResult = $request->getAttribute(RouteResult::class, RouteResult::fromRouteFailure(null)); |
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$redirectResponse = $this->createRedirectResponse($routeResult, $request->getUri()); |
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if ($redirectResponse !== null) { |
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return $redirectResponse; |
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} |
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$accepts = explode(',', $request->getHeaderLine('Accept')); |
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$accept = array_shift($accepts); |
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$status = StatusCodeInterface::STATUS_NOT_FOUND; |
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// If the first accepted type is json, return a json response |
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if (contains(['application/json', 'text/json', 'application/x-json'], $accept)) { |
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return new Response\JsonResponse([ |
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'error' => 'NOT_FOUND', |
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'message' => 'Not found', |
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3 |
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], $status); |
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} |
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$template = $routeResult->isFailure() ? self::NOT_FOUND_TEMPLATE : self::INVALID_SHORT_CODE_TEMPLATE; |
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return new Response\HtmlResponse($this->renderer->render($template), $status); |
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} |
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private function createRedirectResponse(RouteResult $routeResult, UriInterface $uri): ?ResponseInterface |
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{ |
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$isBaseUrl = rtrim($uri->getPath(), '/') === $this->shlinkBasePath; |
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if ($isBaseUrl && $this->redirectOptions->hasBaseUrlRedirect()) { |
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return new Response\RedirectResponse($this->redirectOptions->getBaseUrlRedirect()); |
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} |
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if (!$isBaseUrl && $routeResult->isFailure() && $this->redirectOptions->hasRegular404Redirect()) { |
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return new Response\RedirectResponse($this->redirectOptions->getRegular404Redirect()); |
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} |
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if ( |
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$routeResult->isSuccess() && |
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$routeResult->getMatchedRouteName() === RedirectAction::class && |
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$this->redirectOptions->hasInvalidShortUrlRedirect() |
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) { |
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return new Response\RedirectResponse($this->redirectOptions->getInvalidShortUrlRedirect()); |
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} |
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return null; |
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} |
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} |
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shlinkio /
shlink
