www/system/app/Router.php

<?php
/*
 * DVelum project http://code.google.com/p/dvelum/ , http://dvelum.net Copyright
 * (C) 2011-2013 Kirill A Egorov This program is free software: you can
 * redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version. This program 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 General Public License for more details. You should have received
 * a copy of the GNU General Public License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 */
/**
 * Base class for routing of requests 
 */
abstract class Router implements Router_Interface
{
	/**
     * @var Request
     */
	protected $_request;
	
	public function __construct()
	{
		$this->_request = Request::getInstance();
	}
	
   /**
	* Route request
	*/
	abstract public function route();
	
	/**
	 * Calc url for module
	 * @param string $module — module name
	 * @return string
	 */
 	abstract public function findUrl($module);
 	 
 	/**
     * Run controller
     * @param string $controller - controller class
     * @param string $action - action name
     * @return mixed
     */
	 public function runController($controller , $action = false)
	 {
	 	if(!class_exists($controller))
	 		return false;
	 	
	 	$controller = new $controller();	 	
	 	$controller->setRouter($this);
	 		
	 	if($controller instanceof Router_Interface){
	 	  return $controller->route();
	 	}
	 	 	
	 	if($action===false || !strlen($action) || !method_exists($controller , $action.'Action'))
	 	{ 		
	 		if(strlen($action) && Request::isAjax()){
	 		  Response::jsonError(Lang::lang()->get('WRONG_REQUEST').' ' . Request::getInstance()->getUri());
	 		}	 		
	 		$action = 'index';
	 	}	 		
	 	return $controller->{$action.'Action'}();
	 }
}