101 lines
3.5 KiB
PHP
101 lines
3.5 KiB
PHP
<?php
|
|
|
|
/**
|
|
* ownCloud - App Framework
|
|
*
|
|
* @author Bernhard Posselt
|
|
* @copyright 2012 Bernhard Posselt nukeawhale@gmail.com
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
|
|
* License as published by the Free Software Foundation; either
|
|
* version 3 of the License, or any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
|
|
namespace OC\AppFramework\Middleware;
|
|
|
|
use OC\AppFramework\Http\Response;
|
|
|
|
|
|
/**
|
|
* Middleware is used to provide hooks before or after controller methods and
|
|
* deal with possible exceptions raised in the controller methods.
|
|
* They're modeled after Django's middleware system:
|
|
* https://docs.djangoproject.com/en/dev/topics/http/middleware/
|
|
*/
|
|
abstract class Middleware {
|
|
|
|
|
|
/**
|
|
* This is being run in normal order before the controller is being
|
|
* called which allows several modifications and checks
|
|
*
|
|
* @param Controller $controller the controller that is being called
|
|
* @param string $methodName the name of the method that will be called on
|
|
* the controller
|
|
*/
|
|
public function beforeController($controller, $methodName){
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* This is being run when either the beforeController method or the
|
|
* controller method itself is throwing an exception. The middleware is
|
|
* asked in reverse order to handle the exception and to return a response.
|
|
* If the response is null, it is assumed that the exception could not be
|
|
* handled and the error will be thrown again
|
|
*
|
|
* @param Controller $controller the controller that is being called
|
|
* @param string $methodName the name of the method that will be called on
|
|
* the controller
|
|
* @param \Exception $exception the thrown exception
|
|
* @throws \Exception the passed in exception if it cant handle it
|
|
* @return Response a Response object in case that the exception was handled
|
|
*/
|
|
public function afterException($controller, $methodName, \Exception $exception){
|
|
throw $exception;
|
|
}
|
|
|
|
|
|
/**
|
|
* This is being run after a successful controllermethod call and allows
|
|
* the manipulation of a Response object. The middleware is run in reverse order
|
|
*
|
|
* @param Controller $controller the controller that is being called
|
|
* @param string $methodName the name of the method that will be called on
|
|
* the controller
|
|
* @param Response $response the generated response from the controller
|
|
* @return Response a Response object
|
|
*/
|
|
public function afterController($controller, $methodName, Response $response){
|
|
return $response;
|
|
}
|
|
|
|
|
|
/**
|
|
* This is being run after the response object has been rendered and
|
|
* allows the manipulation of the output. The middleware is run in reverse order
|
|
*
|
|
* @param Controller $controller the controller that is being called
|
|
* @param string $methodName the name of the method that will be called on
|
|
* the controller
|
|
* @param string $output the generated output from a response
|
|
* @return string the output that should be printed
|
|
*/
|
|
public function beforeOutput($controller, $methodName, $output){
|
|
return $output;
|
|
}
|
|
|
|
}
|