99 lines
3.0 KiB
PHP
99 lines
3.0 KiB
PHP
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<?php
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/**
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* ownCloud - App Framework
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*
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* @author Bernhard Posselt, Thomas Tanghus, Bart Visscher
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* @copyright 2012 Bernhard Posselt nukeawhale@gmail.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\AppFramework\Http;
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use \OC\AppFramework\Controller\Controller;
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use \OC\AppFramework\Middleware\MiddlewareDispatcher;
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/**
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* Class to dispatch the request to the middleware disptacher
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*/
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class Dispatcher {
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private $middlewareDispatcher;
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private $protocol;
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/**
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* @param Http $protocol the http protocol with contains all status headers
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* @param MiddlewareDispatcher $middlewareDispatcher the dispatcher which
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* runs the middleware
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*/
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public function __construct(Http $protocol,
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MiddlewareDispatcher $middlewareDispatcher) {
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$this->protocol = $protocol;
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$this->middlewareDispatcher = $middlewareDispatcher;
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}
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/**
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* Handles a request and calls the dispatcher on the controller
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* @param Controller $controller the controller which will be called
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* @param string $methodName the method name which will be called on
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* the controller
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* @return array $array[0] contains a string with the http main header,
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* $array[1] contains headers in the form: $key => value, $array[2] contains
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* the response output
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*/
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public function dispatch(Controller $controller, $methodName) {
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$out = array(null, array(), null);
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try {
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$this->middlewareDispatcher->beforeController($controller,
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$methodName);
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$response = $controller->$methodName();
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// if an exception appears, the middleware checks if it can handle the
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// exception and creates a response. If no response is created, it is
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// assumed that theres no middleware who can handle it and the error is
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// thrown again
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} catch(\Exception $exception){
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$response = $this->middlewareDispatcher->afterException(
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$controller, $methodName, $exception);
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}
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$response = $this->middlewareDispatcher->afterController(
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$controller, $methodName, $response);
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// get the output which should be printed and run the after output
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// middleware to modify the response
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$output = $response->render();
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$out[2] = $this->middlewareDispatcher->beforeOutput(
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$controller, $methodName, $output);
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// depending on the cache object the headers need to be changed
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$out[0] = $this->protocol->getStatusHeader($response->getStatus(),
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$response->getLastModified(), $response->getETag());
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$out[1] = $response->getHeaders();
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return $out;
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}
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}
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