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<?php
namespace Sirius\Middleware;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
class Runner
{
/* @var runner */
protected $next;
protected $middleware;
/**
* Creates a runner based on an array of middleware
*
* @param array $middlewares
* @return Runner
*/
public static function factory(array $middlewares = array())
$runner = new static;
foreach ($middlewares as $middleware) {
$runner = $runner->add($middleware);
}
return $runner;
public function __construct(callable $middleware = null)
$this->middleware = $middleware;
* Returns a new instance of a runner (ie: immutable middleware runner)
* @param callable $middleware
public function add(callable $middleware)
$runner = new static($middleware);
$runner->next = $this;
* @param ServerRequestInterface $request
* @param ResponseInterface $response
* @return ResponseInterface
public function __invoke(ServerRequestInterface $request, ResponseInterface $response)
if (!$this->middleware) {
return $response;
$result = call_user_func($this->middleware, $request, $response, $this->next);
if (!$result instanceof ResponseInterface) {
$result = $response;
return $result;
siriusphp /
middleware
