80 lines
2.4 KiB
PHP
80 lines
2.4 KiB
PHP
<?php
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namespace Engelsystem\Middleware;
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use Engelsystem\Application;
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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\Server\MiddlewareInterface;
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use Psr\Http\Server\RequestHandlerInterface;
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class RequestHandler implements MiddlewareInterface
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{
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use ResolvesMiddlewareTrait;
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/** @var Application */
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protected $container;
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/**
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* @param Application $container
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*/
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public function __construct(Application $container)
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{
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$this->container = $container;
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}
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/**
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* Process an incoming server request and return a response, optionally delegating
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* response creation to a handler.
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*
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* @param ServerRequestInterface $request
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* @param RequestHandlerInterface $handler
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* @return ResponseInterface
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*/
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
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{
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$requestHandler = $request->getAttribute('route-request-handler');
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$requestHandler = $this->resolveRequestHandler($requestHandler);
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if ($requestHandler instanceof MiddlewareInterface) {
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return $requestHandler->process($request, $handler);
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}
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if ($requestHandler instanceof RequestHandlerInterface) {
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return $requestHandler->handle($request);
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}
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throw new InvalidArgumentException('Unable to process request handler of type ' . gettype($requestHandler));
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}
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/**
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* @param string|callable|MiddlewareInterface|RequestHandlerInterface $handler
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* @return MiddlewareInterface|RequestHandlerInterface
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*/
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protected function resolveRequestHandler($handler)
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{
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if (is_string($handler) && strpos($handler, '@') !== false) {
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list($class, $method) = explode('@', $handler, 2);
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if (!class_exists($class) && !$this->container->has($class)) {
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$class = sprintf('Engelsystem\\Controllers\\%s', $class);
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}
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$handler = [$class, $method];
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}
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if (
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is_array($handler)
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&& is_string($handler[0])
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&& (
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class_exists($handler[0])
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|| $this->container->has($handler[0])
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)
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) {
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$handler[0] = $this->container->make($handler[0]);
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}
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return $this->resolveMiddleware($handler);
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}
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}
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