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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Engelsystem\Middleware; |
| 6 | |
| 7 | use Engelsystem\Http\Request; |
| 8 | use FastRoute\Dispatcher as FastRouteDispatcher; |
| 9 | use Nyholm\Psr7\Uri; |
| 10 | use Psr\Http\Message\ResponseInterface; |
| 11 | use Psr\Http\Message\ServerRequestInterface; |
| 12 | use Psr\Http\Server\MiddlewareInterface; |
| 13 | use Psr\Http\Server\RequestHandlerInterface; |
| 14 | |
| 15 | class RouteDispatcher implements MiddlewareInterface |
| 16 | { |
| 17 | /** |
| 18 | * @param ResponseInterface $response Default response |
| 19 | * @param MiddlewareInterface|null $notFound Handles any requests if the route can't be found |
| 20 | */ |
| 21 | public function __construct( |
| 22 | protected FastRouteDispatcher $dispatcher, |
| 23 | protected ResponseInterface $response, |
| 24 | protected ?MiddlewareInterface $notFound = null |
| 25 | ) { |
| 26 | } |
| 27 | |
| 28 | /** |
| 29 | * Process an incoming server request and return a response, optionally delegating |
| 30 | * response creation to a handler. |
| 31 | */ |
| 32 | public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
| 33 | { |
| 34 | $path = (new Uri((string) $request->getUri()))->getPath(); |
| 35 | if ($request instanceof Request) { |
| 36 | $path = $request->getPathInfo(); |
| 37 | } |
| 38 | |
| 39 | $path = urldecode($path); |
| 40 | $route = $this->dispatcher->dispatch($request->getMethod(), $path); |
| 41 | |
| 42 | $status = $route[0]; |
| 43 | if ($status == FastRouteDispatcher::NOT_FOUND) { |
| 44 | if ($this->notFound instanceof MiddlewareInterface) { |
| 45 | return $this->notFound->process($request, $handler); |
| 46 | } |
| 47 | |
| 48 | return $this->response->withStatus(404); |
| 49 | } |
| 50 | |
| 51 | if ($status == FastRouteDispatcher::METHOD_NOT_ALLOWED) { |
| 52 | $methods = $route[1]; |
| 53 | return $this->response |
| 54 | ->withStatus(405) |
| 55 | ->withHeader('Allow', implode(', ', $methods)); |
| 56 | } |
| 57 | |
| 58 | $routeHandler = $route[1]; |
| 59 | $request = $request->withAttribute('route-request-handler', $routeHandler); |
| 60 | $request = $request->withAttribute('route-request-path', $path); |
| 61 | |
| 62 | $vars = $route[2]; |
| 63 | foreach ($vars as $name => $value) { |
| 64 | $request = $request->withAttribute($name, $value); |
| 65 | } |
| 66 | |
| 67 | return $handler->handle($request); |
| 68 | } |
| 69 | } |