do domain merge support old code

@@ -64,10 +64,39 @@ class Bootstrap extends Bootstrap_Abstract
      */
     public function _initRoute(Dispatcher $dispatcher)
     {
-        $config = new Config\Ini(APPLICATION_PATH . '/configs/routes.ini');
-        if (isset($config->routes)) {
-            $dispatcher->getRouter()->addConfig($config->routes);
+        /* 根据域名的级别，选择对应的模块 */
+        $hostParts = explode('.', $dispatcher->getRequest()->getServer('HTTP_HOST', ''));
+        $level = count($hostParts) - 1;
+        $module = 'Index';
+        // 三级域名
+        if ($level === 3) {
+            switch (strtolower(strval($hostParts[0]))) {
+                case 'm':  
+                case 'new':  // 默认
+                    $module = 'Index';
+                    break;
+                case 'guang': // 逛
+                    $module = 'Guang';
+                    break;
+                case 'list': // 商品列表
+                    $module = 'Product';
+                    break;
+                default: // 其它(识别为品牌)
+                    $module = 'Brand';
+                    break;
+            }
         }
+        $dispatcher->getRequest()->module = $module;
+        
+        /* 根据对应模块的配置，添加相应的路由规则 */
+        $iniFile = APPLICATION_PATH . '/configs/routes.' . strtolower($module) . 'ini';
+        if (file_exists($iniFile)) {
+            $config = new Config\Ini($iniFile);
+            if (isset($config->routes)) {
+                $dispatcher->getRouter()->addConfig($config->routes);
+            }
+        }
+        
     }
 
     /**