# Code coverage report for thinkjs/lib/Lib/Core/Dispatcher.js

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All files » thinkjs/lib/Lib/Core/ » Dispatcher.js

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     /**
     * 路由识别
     * @type {Object}
     */
    var Dispatcher = module.exports = Class(function(){
      'use strict';
      return {
        /**
         * 初始化
         * @param  {[type]} http [description]
         * @return {[type]}      [description]
         */
        init: function(http){
          this.http = http;
        },
        /**
         * 准备pathanem
         * @return {[type]} [description]
         */
        preparePathName: function(){
          var pathname = Dispatcher.splitPathName(this.http.pathname).join('/');
          //去除pathname前缀
          var prefix = C('url_pathname_prefix');
          if (prefix && pathname.indexOf(prefix) === 0) {
            pathname = pathname.substr(prefix.length);
          }
          //判断URL后缀
          var suffix = C('url_pathname_suffix');
          if (suffix && pathname.substr(0 - suffix.length) === suffix) {
            pathname = pathname.substr(0, pathname.length - suffix.length);
          }
          this.http.pathname = pathname;
        },
        /**
         * 解析pathname
         * @return {[type]} [description]
         */
        parsePathName: function(){
          if (this.http.group) {
            return true;
          }
          var paths = Dispatcher.splitPathName(this.http.pathname);
          //将group list变为小写
          var groupList = C('app_group_list');
          var group = '';
          if (groupList.length && paths[0] && groupList.indexOf(paths[0].toLowerCase()) > -1) {
            group = paths.shift();
          }
          var controller = paths.shift();
          var action = paths.shift();
          //解析剩余path的参数
          if (paths.length) {
            for(var i = 0,length = Math.ceil(paths.length) / 2; i < length; i++){
              this.http.get[paths[i * 2]] = paths[i * 2 + 1] || '';
            }
          }
          this.http.group = Dispatcher.getGroup(group);
          this.http.controller = Dispatcher.getController(controller);
          this.http.action = Dispatcher.getAction(action);
        },
        /**
         * run
         * @return {[type]} [description]
         */
        run: function(){
          var self = this;
          return tag('resource_check', this.http).then(function(){
            return self.preparePathName();
          }).then(function(){
            return tag('path_info', self.http);
          }).then(function(){
            return tag('route_check', self.http);
          }).then(function(){
            return self.parsePathName();
          });
        }
      };
    });
    /**
     * 分割pathname
     * @param  {[type]} pathname [description]
     * @return {[type]}          [description]
     */
    Dispatcher.splitPathName = function(pathname){
      'use strict';
      var ret = [];
      var j = 0;
      pathname = pathname.split('/');
      for(var i = 0, length = pathname.length, item; i < length; i++){
        item = pathname[i].trim();
        if (item) {
          ret[j++] = item;
        }
      }
      return ret;
    }
    /**
     * 获取group
     * @param  {[type]} group [description]
     * @return {[type]}       [description]
     */
    Dispatcher.getGroup = function(group){
      'use strict';
      group = group || C('default_group');
      return ucfirst(group);
    };

    /**
     * 检测Controller和Action是否合法的正则
     * @type {RegExp}
     */
    var nameReg = /^[A-Za-z\_]\w*$/;
    /**
     * 获取controller
     * @param  {[type]} controller [description]
     * @return {[type]}            [description]
     */
    Dispatcher.getController = function(controller){
      'use strict';
      if (!controller) {
        return ucfirst(C('default_controller'));
      }else if (!nameReg.test(controller)) {
        return '';
      }
      return ucfirst(controller);
    };
    /**
     * 获取action
     * @param  {[type]} action [description]
     * @return {[type]}        [description]
     */
    Dispatcher.getAction = function(action){
      'use strict';
      if (!action) {
        return C('default_action');
      }else if (!nameReg.test(action)) {
        return '';
      }
      return action;
    };