# Code coverage report for thinkjs/lib/Lib/Behavior/CheckRouteBehavior.js

## Statements: 100% (98 / 98) Branches: 100% (64 / 64) Functions: 100% (11 / 11) Lines: 100% (98 / 98) Ignored: none

All files » thinkjs/lib/Lib/Behavior/ » CheckRouteBehavior.js

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     /**
     * 检测路由行为
     * 通过自定义路由识别到对应的URL上
     * @return {[type]} [description]
     */
    var url = require('url');
    var Dispatcher = thinkRequire('Dispatcher');

    module.exports = Behavior(function(){
      'use strict';
      return {
        options: {
          'url_route_on': false, //是否开启自定义URL路由
          'url_route_rules': [] //自定义URL路由规则
        },
        run: function(){
          if (!this.options.url_route_on) {
            return false;
          }
          var routes = this.options.url_route_rules;
          var length = routes.length;
          if (length === 0) {
            return false;
          }
          var pathname = this.http.pathname;
          var match;
          for(var i = 0; i < length; i++){
            var route = routes[i];
            var rule = route[0];
            //正则路由
            if (isRegexp(rule)) {
              match = pathname.match(rule);
              if (match) {
                var result = this.parseRegExp(match, route[1], pathname);
                if (result) {
                  return result;
                }
              }
            }else{
              //字符串路由
              match = this.checkUrlMatch(pathname, rule);
              if (match) {
                return this.parseRule(rule, route[1], pathname);
              }
            }
          }
          return false;
        },
        /**
         * 解析字符串路由
         * @param  {[type]} rule     [description]
         * @param  {[type]} route    [description]
         * @param  {[type]} pathname [description]
         * @return {[type]}          [description]
         */
        parseRule: function(rule, route, pathname){
          route = this.getRoute(route);
          if (!route) {
            return false;
          }
          pathname = Dispatcher.splitPathName(pathname);
          rule = Dispatcher.splitPathName(rule);
          var matches = [];
          var self = this;
          rule.forEach(function(item){
            var pathitem = pathname.shift();
            if (item.indexOf(':') === 0) {
              if (item.indexOf('\\') === -1) {
                self.http.get[item.substr(1)] = pathitem;
              }else{
                matches.push(pathitem);
              }
            }
          });
          //将剩余的pathname分割为querystring
          if (pathname.length) {
            for(var i = 0,length = Math.ceil(pathname.length)/2; i < length; i++){
              this.http.get[pathname[i * 2]] = pathname[i * 2 + 1] || '';
            }
          }
          route = route.replace(/:(\d+)/g, function(a, b){
            return matches[b - 1] || '';
          });
          this.parseUrl(route);
          return true;
        },
        /**
         * 检测URL是否匹配
         * @param  {[type]} pathname [description]
         * @param  {[type]} rule     [description]
         * @return {[type]}          [description]
         */
        checkUrlMatch: function(pathname, rule){
          pathname = Dispatcher.splitPathName(pathname);
          rule = Dispatcher.splitPathName(rule);
          return rule.every(function(item, i){
            if (item.indexOf(':') === 0) {
              if (item.indexOf('\\') > -1) {
                var type = item.substr(-1);
                var reg;
                switch(type){
                  case 'd':
                    reg = /^\d+$/;
                    break;
                  case 'w':
                    reg = /^\w+$/
                    break;
                }
                if (reg && !reg.test(pathname[i])) {
                  return false;
                }
              }
            }else{
              var pitem = pathname[i] || '';
              if (pitem.toLowerCase() !== item.toLowerCase()) {
                return false;
              }
            }
            return true;
          });
        },
        /**
         * 解析转化后的url
         * @param  {[type]} urlInfo [description]
         * @return {[type]}         [description]
         */
        parseUrl: function(urlInfo){
          urlInfo = url.parse(urlInfo, true);
          if (!isEmpty(urlInfo.query)) {
            for(var key in urlInfo.query){
              if (urlInfo.query[key] || !(key in this.http.get)) {
                this.http.get[key] = urlInfo.query[key];
              }
            }
          }
          // 过滤调用pathname最后有/的情况
          var pathname = Dispatcher.splitPathName(urlInfo.pathname);
          this.http.action = Dispatcher.getAction(pathname.pop());
          this.http.controller = Dispatcher.getController(pathname.pop());
          this.http.group = Dispatcher.getGroup(pathname.pop());
        },
        /**
         * 获取route
         * @param  {[type]} route [description]
         * @return {[type]}       [description]
         */
        getRoute: function(route, matches){
          if (isObject(route)) {
            //对应的请求类型
            for(var method in route){
              //由于请求类型没有包含关系，这里可以直接用indexOf判断
              if (method.toUpperCase().indexOf(this.http.method) > -1) {
                return route[method];
              }
            }
            return;
          }
          var routeUpper = route.toUpperCase();
          //RESTFUL API
          if (routeUpper === 'RESTFUL' || routeUpper.indexOf('RESTFUL:') === 0) {
            var group = route.split(':')[1] || C('restful_group');
            route = group + '/' + matches[1] + '/' + this.http.method.toLowerCase() + '?resource=' + matches[1];
            if (matches[2]) {
              route += '&id=' + matches[2];
            }
            //设置变量到http对象上，方便后续使用
            this.http.isRestful = true;
            return route;
          }
          return route;
        },
        /**
         * 正则匹配路由
         * @param  {[type]} matches  [description]
         * @param  {[type]} route    [description]
         * @param  {[type]} pathname [description]
         * @return {[type]}          [description]
         */
        parseRegExp: function(matches, route, pathname){
          route = this.getRoute(route, matches);
          if (!route) {
            return false;
          }
          //替换路由字符串里的:1, :2 匹配都的值
          //如：group/detail?date=:1&groupId=:2&page=:3
          route = route.replace(/:(\d+)/g, function(a, b){
            return matches[b] || '';
          });
          pathname = pathname.replace(matches[0], '');
          pathname = Dispatcher.splitPathName(pathname);
          //将剩余的pathname分割为querystring
          if (pathname.length) {
            for(var i = 0,length = Math.ceil(pathname.length)/2; i < length; i++){
              this.http.get[pathname[i * 2]] = pathname[i * 2 + 1] || '';
            }
          }
          this.parseUrl(route);
          return true;
        }
      };
    });