Backbone.js的 - 如果处理一个用户登录或不 [英] backbone.js - handling if a user is logged in or not

问题描述

首先，应该说供应该应用的静态页面是登录页面？

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

其次，我的服务器端code是罚款（它不会给任何数据，用户不应该能够看到）。但是，如何让我的应用程序知道，如果用户没有登录，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

我有一个后端的呼叫，我的客户端code，我的静态页面（的index.php），使检查当前用户是否登录。比方说，你在 API /认证/ LOGGED_IN 后端调用返回的HTTP状态code 200 如果用户登录或 400 否则（使用基于cookie的会话）：

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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