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<?php |
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namespace Northwoods\Broker; |
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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\ServerRequestInterface; |
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use SplObjectStorage; |
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class Broker implements MiddlewareInterface |
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{ |
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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 array |
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*/ |
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private $middleware = []; |
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public function __construct(ContainerInterface $container = null) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* @return \Psr\Http\Message\ResponseInterface |
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*/ |
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public function handle(ServerRequestInterface $request, callable $default) |
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{ |
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$delegate = new CallableDelegate($default); |
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return $this->process($request, $delegate); |
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} |
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// MiddlewareInterface |
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public function process(ServerRequestInterface $request, DelegateInterface $delegate) |
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{ |
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$delegate = new Delegate($this->middleware, $delegate, $this->container); |
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return $delegate->process($request); |
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} |
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/** |
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* @param array|string|MiddlewareInterface $middleware |
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* @return self |
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*/ |
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public function always($middleware) |
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{ |
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return $this->when($this->alwaysTrue(), $middleware); |
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} |
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/** |
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* @param array|string|MiddlewareInterface $middleware |
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* @return self |
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*/ |
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public function when(callable $condition, $middleware) |
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{ |
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if (!is_array($middleware)) { |
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$middleware = [$middleware]; |
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} |
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foreach ($middleware as $mw) { |
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$this->middleware[] = [ |
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$condition, |
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$mw |
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]; |
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} |
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return $this; |
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} |
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/** |
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* @return callable |
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*/ |
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private function alwaysTrue() |
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{ |
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return static function () { |
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return true; |
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}; |
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} |
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} |
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northwoods /
broker
