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<?php |
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/** |
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* WebHemi. |
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* |
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* PHP version 7.1 |
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* |
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* @copyright 2012 - 2017 Gixx-web (http://www.gixx-web.com) |
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* @license https://opensource.org/licenses/MIT The MIT License (MIT) |
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* |
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* @link http://www.gixx-web.com |
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*/ |
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declare(strict_types = 1); |
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namespace WebHemi\Middleware\Common; |
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use Psr\Http\Message\StreamInterface; |
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use RuntimeException; |
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use WebHemi\Http\ResponseInterface; |
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use WebHemi\Http\ServerRequestInterface; |
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use WebHemi\Middleware\MiddlewareInterface; |
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use WebHemi\Middleware\ActionMiddlewareInterface; |
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use WebHemi\Renderer\ServiceInterface as RendererInterface; |
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/** |
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* Class DispatcherMiddleware. |
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*/ |
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class DispatcherMiddleware implements MiddlewareInterface |
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{ |
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/** @var RendererInterface */ |
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private $templateRenderer; |
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/** |
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* DispatcherMiddleware constructor. |
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* |
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* @param RendererInterface $templateRenderer |
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*/ |
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public function __construct(RendererInterface $templateRenderer) |
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{ |
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$this->templateRenderer = $templateRenderer; |
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} |
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/** |
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* From the request data renders an output for the response, or sets an error status code. |
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* |
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* @param ServerRequestInterface $request |
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* @param ResponseInterface $response |
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* @throws RuntimeException |
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* @return void |
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*/ |
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public function __invoke(ServerRequestInterface&$request, ResponseInterface&$response) : void |
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{ |
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/** @var MiddlewareInterface $actionMiddleware */ |
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$actionMiddleware = $request->getAttribute(ServerRequestInterface::REQUEST_ATTR_ACTION_MIDDLEWARE); |
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// If there is a valid action Middleware, then dispatch it. |
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if (!is_null($actionMiddleware) && $actionMiddleware instanceof ActionMiddlewareInterface) { |
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/** @var ResponseInterface $response */ |
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$actionMiddleware($request, $response); |
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// Create template only when there's no redirect |
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if (ResponseInterface::STATUS_REDIRECT != $response->getStatusCode()) { |
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/** @var string $template */ |
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$template = $request->getAttribute(ServerRequestInterface::REQUEST_ATTR_DISPATCH_TEMPLATE); |
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/** @var array $data */ |
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$data = $request->getAttribute(ServerRequestInterface::REQUEST_ATTR_DISPATCH_DATA); |
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if (!$request->isXmlHttpRequest()) { |
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/** @var StreamInterface $body */ |
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$body = $this->templateRenderer->render($template, $data); |
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$response = $response->withBody($body); |
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} |
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} |
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} else { |
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throw new RuntimeException(sprintf('The given attribute is not a valid Action Middleware.'), 1000); |
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} |
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} |
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} |
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Gixx /
WebHemi
