如何防止用户一次使用多个浏览器 [英] how to prevent user from using multiple browsers at a time

问题描述

我的网站上有登录系统，用户必须为使用我的网站付费.由于他们必须付费，因此恐怕一个用户可能会与另一个用户共享其用户名和密码.因此，我必须将登录系统设置为没有用户一次只能使用一个以上的浏览器.但是他们可以不时更改浏览器(不是同时，而是一天中的不同时间段).我如何通过php来实现呢?有什么主意吗?

I have login system in my site and users have to pay for using my site. As they have to pay, I am afraid that one user may share his username and password with another users. So I have to set my login system in such way that no user can use more than one browser at a time. But they can change the browser from time to time (not at the same time but different periods of a day). How can I implement that by php? Any idea?

推荐答案

使用帮助程序javascript预加载器来收集非个人浏览器信息，并根据登录时间/帐户/IP/浏览器信息生成哈希.

Use helper javascript preloader to collect non-personal browser information and generate a hash from login time/account/IP/browser info.

在服务器端检查一次，每个用户帐户激活的哈希不超过一个，如果发生，则强制注销以前的哈希.使用另一个客户端JavaScript定期对服务器执行ping操作并检查哈希唯一性，并为动态IP"用例无缝地重新登录合法用户.

Check on server side that no more than one hashes are active per user account at a time and force logout on former ones if that happens. Use another client-side javascript to periodically ping server and check hash uniqueness and seamlessly re-login legitimate users for "dynamic IP" use case.

因此，如果用户与另一个用户共享他的帐户，他们将不断在站点外互相踢"，直到惹恼足以支付第二个帐户的费用为止.

Thus if user shares his account with another user they will keep constantly "kicking" each other out of site until annoyed enough to pay for second account.

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