1 files changed, 50 insertions, 0 deletions
diff --git a/src/Middleware/RequestHandler.php b/src/Middleware/RequestHandler.php
new file mode 100644
index 00000000..e1381abf
--- /dev/null
+++ b/src/Middleware/RequestHandler.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Engelsystem\Middleware;
+
+use Engelsystem\Application;
+use InvalidArgumentException;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+
+class RequestHandler implements MiddlewareInterface
+{
+    use ResolvesMiddlewareTrait;
+
+    /** @var Application */
+    protected $container;
+
+    /**
+     * @param Application $container
+     */
+    public function __construct(Application $container)
+    {
+        $this->container = $container;
+    }
+
+    /**
+     * Process an incoming server request and return a response, optionally delegating
+     * response creation to a handler.
+     *
+     * @param ServerRequestInterface  $request
+     * @param RequestHandlerInterface $handler
+     * @return ResponseInterface
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        $requestHandler = $request->getAttribute('route-request-handler');
+        $requestHandler = $this->resolveMiddleware($requestHandler);
+
+        if ($requestHandler instanceof MiddlewareInterface) {
+            return $requestHandler->process($request, $handler);
+        }
+
+        if ($requestHandler instanceof RequestHandlerInterface) {
+            return $requestHandler->handle($request);
+        }
+
+        throw new InvalidArgumentException('Unable to process request handler of type ' . gettype($requestHandler));
+    }
+}