72 lines
2.0 KiB
PHP
72 lines
2.0 KiB
PHP
<?php
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namespace Framework\Middleware;
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use GuzzleHttp\Psr7\Response;
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use Interop\Http\ServerMiddleware\DelegateInterface;
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use Interop\Http\ServerMiddleware\MiddlewareInterface;
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use Psr\Container\ContainerInterface;
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use Psr\Http\Message\ResponseInterface;
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use Psr\Http\Message\ServerRequestInterface;
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class CombinedMiddlewareDelegate implements DelegateInterface
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{
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/**
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* @var string[]
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*/
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private $middlewares = [];
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/**
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* @var int
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*/
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private $index = 0;
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/**
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* @var ContainerInterface
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*/
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private $container;
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/**
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* @var DelegateInterface
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*/
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private $delegate;
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public function __construct(ContainerInterface $container, array $middlewares, DelegateInterface $delegate)
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{
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$this->middlewares = $middlewares;
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$this->container = $container;
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$this->delegate = $delegate;
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}
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public function process(ServerRequestInterface $request): ResponseInterface
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{
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$middleware = $this->getMiddleware();
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if (is_null($middleware)) {
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return $this->delegate->process($request);
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} elseif (is_callable($middleware)) {
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$response = call_user_func_array($middleware, [$request, [$this, 'process']]);
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if (is_string($response)) {
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return new Response(200, [], $response);
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}
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return $response;
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} elseif ($middleware instanceof MiddlewareInterface) {
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return $middleware->process($request, $this);
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}
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}
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/**
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* @return object
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*/
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private function getMiddleware()
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{
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if (array_key_exists($this->index, $this->middlewares)) {
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if (is_string($this->middlewares[$this->index])) {
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$middleware = $this->container->get($this->middlewares[$this->index]);
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} else {
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$middleware = $this->middlewares[$this->index];
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}
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$this->index++;
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return $middleware;
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}
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return null;
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}
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}
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