Backbone.js - 处理用户是否登录 [英] backbone.js - handling if a user is logged in or not

问题描述

首先，为应用提供的静态页面应该是登录页面吗?

Firstly, should the static page that is served for the app be the login page?

其次，我的服务器端代码很好(它不会提供用户不应该看到的任何数据).但是如何让我的应用知道如果用户未登录，则返回到登录表单?

Secondly, my server side code is fine (it won't give any data that the user shouldn't be able to see). But how do I make my app know that if the user is not logged in, to go back to a login form?

推荐答案

我有一个后端调用，我的静态页面 (index.php) 使用客户端代码来检查当前用户是否已登录.假设您在 api/auth/logged_in 处有一个后端调用，如果用户已登录，则返回 HTTP 状态代码 200 否则返回 400(使用 cookie基于会话):

I have a backend call that my client-side code that my static page (index.php) makes to check whether the current user is logged in. Let's say you have a backend call at api/auth/logged_in which returns HTTP status code 200 if the user is logged in or 400 otherwise (using cookie-based sessions):

appController.checkUser(function(isLoggedIn){
    if(!isLoggedIn) {
        window.location.hash = "login";    
    }

    Backbone.history.start();
});

...

window.AppController = Backbone.Controller.extend({

  checkUser: function(callback) {
     var that = this;

     $.ajax("api/auth/logged_in", {
       type: "GET",
       dataType: "json",
       success: function() {
         return callback(true);
       },
       error: function() {
         return callback(false);
       }
     });
  }
});

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