ThinkPHP/Extend/Mode/Lite/Dispatcher.class.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

/**
 * ThinkPHP内置的Dispatcher类 用于精简模式
 * 完成URL解析、路由和调度
 * @category   Think
 * @package  Think
 * @subpackage  Util
 * @author    liu21st <liu21st@gmail.com>
 * @version   $Id: Dispatcher.class.php 2702 2012-02-02 12:35:01Z liu21st $
 */
class Dispatcher {

    /**
     * URL映射到控制器
     * @access public
     * @return void
     */
    static public function dispatch() {
        $urlMode  =  C('URL_MODEL');
        if($urlMode == URL_COMPAT || !empty($_GET[C('VAR_PATHINFO')])){
            // 兼容模式判断
            define('PHP_FILE',_PHP_FILE_.'?'.C('VAR_PATHINFO').'=');
            $_SERVER['PATH_INFO']   = $_GET[C('VAR_PATHINFO')];
            unset($_GET[C('VAR_PATHINFO')]);
        }elseif($urlMode == URL_REWRITE ) {
            //当前项目地址
            $url    =   dirname(_PHP_FILE_);
            if($url == '/' || $url == '\\')
                $url    =   '';
            define('PHP_FILE',$url);
        }else {
            //当前项目地址
            define('PHP_FILE',_PHP_FILE_);
        }

        // 分析PATHINFO信息
        tag('path_info');
        // 分析PATHINFO信息
        $depr = C('URL_PATHINFO_DEPR');
        if(!empty($_SERVER['PATH_INFO'])) {
            if(C('URL_HTML_SUFFIX') && !empty($_SERVER['PATH_INFO'])) {
                $_SERVER['PATH_INFO'] = preg_replace('/\.'.trim(C('URL_HTML_SUFFIX'),'.').'$/', '', $_SERVER['PATH_INFO']);
            }
            if(!self::routerCheck()){   // 检测路由规则 如果没有则按默认规则调度URL
                $paths = explode($depr,trim($_SERVER['PATH_INFO'],'/'));
                $var  =  array();
                if (C('APP_GROUP_LIST') && !isset($_GET[C('VAR_GROUP')])){
                    $var[C('VAR_GROUP')] = in_array(strtolower($paths[0]),explode(',',strtolower(C('APP_GROUP_LIST'))))? array_shift($paths) : '';
                }
                if(!isset($_GET[C('VAR_MODULE')])) {// 还没有定义模块名称