refactor

@@ -3,7 +3,7 @@
 const _ = require('lodash');
 const cookie = global.yoho.cookie;
 const cache = global.yoho.cache;
-const loginService = require('../../apps/passport/models/login-service');
+const LoginService = require('../../apps/passport/models/login-service');
 
 /**
  * 已登录用户的信息，包括记住我功能。
@@ -41,13 +41,13 @@ module.exports = () => {
                 let password = data.password;
                 let area = data.area;
 
-                return loginService.signin(area, account, password);
+                return LoginService.signin(area, account, password);
             }).then(result => {
                 if (result.code !== 200) {
                     return Promise.reject(new Error(result.message));
                 }
 
-                return loginService.syncUserSession(result.data.uid, req, res);
+                return LoginService.syncUserSession(result.data.uid, req, res);
             }).then(()=> {
                 return res.redirect(req.getUrl());
             }).catch(next);