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Apache-2.0

lee-auth登陆认证code模版

介绍

lee-auth web登陆认证code模板,基于long short Token设计,兼顾性能和安全。

软件架构

在当前常见web服务中,登陆鉴权是一个通用问题,作为系统在逻辑安全层面的入口,往往不受重视,亦或者在实现上过于笨重/简陋。 本人从事多年web开发,并且在使用security,shiro等安全库后,自行总结一套轻量级高可用分布式,支持单点登陆,多端登陆,易于扩展和定制, 并且对传统token,JWT方案做整合,设计长短token鉴权方案,使系统在安全性和性能上做出折中,某种层度上解决JWT失效前无法登出隐患, 并且此设计方案也能提供用户活跃数据埋点,不登出刷新用户权限等额外附赠功能。此模版仅仅以java做示例,任何语言的web登陆系统都能以类似 方式实现一套轻量级登陆鉴权方案。对于做web登陆认证的新人来说,可以做到铺平道路的作用。

安装教程

clone到本地即可启动,需要java11和maven环境,同时需要配置mysql和redis。

常见认证方式

1.使用Token,由服务端签发,并将用户信息存储在redis中,客户端每次请求都带上进行验证

输入图片说明

优点

  • 对多端共享支持友好
  • 实现方式相对简单
  • 安全性高,控制灵敏性高
  • 可以即时登出

缺点

  • 服务端需要维持会话状态
  • 用于维护状态信息的缓存压力很大
  • 分布式环境下可用性不高,缓存集群成本较高
  • 如需支持单点登录扩展,扩展复杂且运维困难

2.使用JWT,由服务端签发且不保存会话状态,客户端每次请求都需要验证合法性

输入图片说明

优点

  • 对多端共享支持友好
  • 原生支持单点登录
  • 服务端无会话状态,维护成本低
  • 无须缓存支持,减少系统io损耗
  • 可携带载荷数据,扩展性较高

缺点

  • 服务端登出功能难以实现
  • 安全性较低,控制灵敏度差
  • 一旦签发无法撤销,或撤销较复杂

总结

  • 以上两种方案分别有其优缺点,一般来说,在小型系统中,使用第一种方案,是比较不错的, 并且可以即时登出,服务端具备较大主动权,是一种符合需求的设计。 但是在中大型分布式系统中,第一种设计方案,却带来高昂的维护成本,对缓存也有较大压力, 想要做单点登录扩展更是复杂。这时候如果单纯替换为JWT,虽然解决了缓存问题,分布式可用问题, 单点登陆等问题,但是随之而来的安全问题,服务端无法主动登出问题,也是大部分系统无法接受的。 曾有人使用黑白名单解决JWT不够安全灵敏的缺点,但是一旦使用黑白名单,本质就是退回传统token设计方案。 能不能有一种方案,既能像JWT一样,分布式可用,不对缓存造成巨大访问压力,并且同样支持单点登陆, 这就是长短token方案,使用长token维护登陆状态,使用短token访问系统。此方案的优势是,同时具备token和JWT 的优点,但是却能够将互相的缺点尽量抵消或降低,是一种折中且可用的方案,对于大部分业务场景,都能满足需求, 做到安全和性能的权衡。此代码模板正是对长短token授权方案的一种整理总结。并且同时提供了账号密码登陆, 短信验证码登陆,第三方平台绑定登陆,一键登陆的代码模板,满足了常见需求。

长短Token授权方案

使用[long,short]Token,由认证服务器签发并保存会话状态,业务服务器校验short Token合法性,客户端使用 long Token刷新short Token,认证服务器可使long Token失效,实现服务端延时登出,最长延时时间为short Token 过期时间。

输入图片说明

优点

  • 对多端共享支持友好
  • 原生支持单点登录
  • 业务服务端无会话状态,维护成本低
  • 业务服务端无须缓存支持,减少系统io损耗
  • 可携带载荷数据,扩展性较高
  • 安全性较高,控制灵敏性较高
  • 可以延时(最长为短token过期时间)登出 (目前已设计一种可以即时登出且不需要缓存方案)
  • 客户端可以无感知刷新用户权限
  • 可以基于客户端刷新操作做数据埋点

缺点

  • 服务端登出存在一定延迟,延迟时间由短token过期时间控制 (此问题有解决方案,不依赖业务服务器缓存,但有一定难度)
  • 有一定编程门槛,细节处理较多。

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  4. 新建 Pull Request

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lee-auth web登陆认证code模板,基于long short Token设计,兼顾性能和安全,分布式高可用. 展开 收起
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