# jwt
```
<pre class="calibre15">```
<span class="token"><</span><span class="token">?</span>php
<span class="token6">/**
* PHP实现jwt
*/</span>
class <span class="token3">Jwt</span> <span class="token1">{</span>
<span class="token6">//头部</span>
private static $header<span class="token">=</span><span class="token3">array</span><span class="token1">(</span>
<span class="token4">'alg'</span><span class="token">=</span><span class="token">></span><span class="token4">'HS256'</span><span class="token1">,</span> <span class="token6">//生成signature的算法</span>
<span class="token4">'typ'</span><span class="token">=</span><span class="token">></span><span class="token4">'JWT'</span> <span class="token6">//类型</span>
<span class="token1">)</span><span class="token1">;</span>
<span class="token6">//使用HMAC生成信息摘要时所使用的密钥</span>
private static $key<span class="token">=</span><span class="token4">'123456'</span><span class="token1">;</span>
<span class="token6">/**
* 获取jwt token
* @param array $payload jwt载荷 格式如下非必须
* [
* 'iss'=>'jwt_admin', //该JWT的签发者
* 'iat'=>time(), //签发时间
* 'exp'=>time()+7200, //过期时间
* 'nbf'=>time()+60, //该时间之前不接收处理该Token
* 'sub'=>'www.admin.com', //面向的用户
* 'jti'=>md5(uniqid('JWT').time()) //该Token唯一标识
* ]
* @return bool|string
*/</span>
public static <span class="token2">function</span> <span class="token3">getToken</span><span class="token1">(</span>array $payload<span class="token1">)</span>
<span class="token1">{</span>
<span class="token2">if</span><span class="token1">(</span><span class="token3">is_array</span><span class="token1">(</span>$payload<span class="token1">)</span><span class="token1">)</span>
<span class="token1">{</span>
$base64header<span class="token">=</span>self<span class="token1">:</span><span class="token1">:</span><span class="token3">base64UrlEncode</span><span class="token1">(</span><span class="token3">json_encode</span><span class="token1">(</span>self<span class="token1">:</span><span class="token1">:</span>$header<span class="token1">,</span>JSON_UNESCAPED_UNICODE<span class="token1">)</span><span class="token1">)</span><span class="token1">;</span>
$base64payload<span class="token">=</span>self<span class="token1">:</span><span class="token1">:</span><span class="token3">base64UrlEncode</span><span class="token1">(</span><span class="token3">json_encode</span><span class="token1">(</span>$payload<span class="token1">,</span>JSON_UNESCAPED_UNICODE<span class="token1">)</span><span class="token1">)</span><span class="token1">;</span>
$token<span class="token">=</span>$base64header<span class="token1">.</span><span class="token4">'.'</span><span class="token1">.</span>$base64payload<span class="token1">.</span><span class="token4">'.'</span><span class="token1">.</span>self<span class="token1">:</span><span class="token1">:</span><span class="token3">signature</span><span class="token1">(</span>$base64header<span class="token1">.</span><span class="token4">'.'</span><span class="token1">.</span>$base64payload<span class="token1">,</span>self<span class="token1">:</span><span class="token1">:</span>$key<span class="token1">,</span>self<span class="token1">:</span><span class="token1">:</span>$header<span class="token1">[</span><span class="token4">'alg'</span><span class="token1">]</span><span class="token1">)</span><span class="token1">;</span>
<span class="token2">return</span> $token<span class="token1">;</span>
<span class="token1">}</span><span class="token2">else</span><span class="token1">{</span>
<span class="token2">return</span> <span class="token5">false</span><span class="token1">;</span>
<span class="token1">}</span>
<span class="token1">}</span>
<span class="token6">/**
* 验证token是否有效,默认验证exp,nbf,iat时间
* @param string $Token 需要验证的token
* @return bool|string
*/</span>
public static <span class="token2">function</span> <span class="token3">verifyToken</span><span class="token1">(</span>string $Token<span class="token1">)</span>
<span class="token1">{</span>
$tokens <span class="token">=</span> <span class="token3">explode</span><span class="token1">(</span><span class="token4">'.'</span><span class="token1">,</span> $Token<span class="token1">)</span><span class="token1">;</span>
<span class="token2">if</span> <span class="token1">(</span><span class="token3">count</span><span class="token1">(</span>$tokens<span class="token1">)</span> <span class="token">!=</span> <span class="token5">3</span><span class="token1">)</span>
<span class="token2">return</span> <span class="token5">false</span><span class="token1">;</span>
<span class="token3">list</span><span class="token1">(</span>$base64header<span class="token1">,</span> $base64payload<span class="token1">,</span> $sign<span class="token1">)</span> <span class="token">=</span> $tokens<span class="token1">;</span>
<span class="token6">//获取jwt算法</span>
$base64decodeheader <span class="token">=</span> <span class="token3">json_decode</span><span class="token1">(</span>self<span class="token1">:</span><span class="token1">:</span><span class="token3">base64UrlDecode</span><span class="token1">(</span>$base64header<span class="token1">)</span><span class="token1">,</span> JSON_OBJECT_AS_ARRAY<span class="token1">)</span><span class="token1">;</span>
<span class="token2">if</span> <span class="token1">(</span><span class="token3">empty</span><span class="token1">(</span>$base64decodeheader<span class="token1">[</span><span class="token4">'alg'</span><span class="token1">]</span><span class="token1">)</span><span class="token1">)</span>
<span class="token2">return</span> <span class="token5">false</span><span class="token1">;</span>
<span class="token6">//签名验证</span>
<span class="token2">if</span> <span class="token1">(</span>self<span class="token1">:</span><span class="token1">:</span><span class="token3">signature</span><span class="token1">(</span>$base64header <span class="token1">.</span> <span class="token4">'.'</span> <span class="token1">.</span> $base64payload<span class="token1">,</span> self<span class="token1">:</span><span class="token1">:</span>$key<span class="token1">,</span> $base64decodeheader<span class="token1">[</span><span class="token4">'alg'</span><span class="token1">]</span><span class="token1">)</span> <span class="token">!==</span> $sign<span class="token1">)</span>
<span class="token2">return</span> <span class="token5">false</span><span class="token1">;</span>
$payload <span class="token">=</span> <span class="token3">json_decode</span><span class="token1">(</span>self<span class="token1">:</span><span class="token1">:</span><span class="token3">base64UrlDecode</span><span class="token1">(</span>$base64payload<span class="token1">)</span><span class="token1">,</span> JSON_OBJECT_AS_ARRAY<span class="token1">)</span><span class="token1">;</span>
<span class="token6">//签发时间大于当前服务器时间验证失败</span>
<span class="token2">if</span> <span class="token1">(</span><span class="token3">isset</span><span class="token1">(</span>$payload<span class="token1">[</span><span class="token4">'iat'</span><span class="token1">]</span><span class="token1">)</span> <span class="token">&&</span> $payload<span class="token1">[</span><span class="token4">'iat'</span><span class="token1">]</span> <span class="token">></span> <span class="token3">time</span><span class="token1">(</span><span class="token1">)</span><span class="token1">)</span>
<span class="token2">return</span> <span class="token5">false</span><span class="token1">;</span>
<span class="token6">//过期时间小宇当前服务器时间验证失败</span>
<span class="token2">if</span> <span class="token1">(</span><span class="token3">isset</span><span class="token1">(</span>$payload<span class="token1">[</span><span class="token4">'exp'</span><span class="token1">]</span><span class="token1">)</span> <span class="token">&&</span> $payload<span class="token1">[</span><span class="token4">'exp'</span><span class="token1">]</span> <span class="token"><</span> <span class="token3">time</span><span class="token1">(</span><span class="token1">)</span><span class="token1">)</span>
<span class="token2">return</span> <span class="token5">false</span><span class="token1">;</span>
<span class="token6">//该nbf时间之前不接收处理该Token</span>
<span class="token2">if</span> <span class="token1">(</span><span class="token3">isset</span><span class="token1">(</span>$payload<span class="token1">[</span><span class="token4">'nbf'</span><span class="token1">]</span><span class="token1">)</span> <span class="token">&&</span> $payload<span class="token1">[</span><span class="token4">'nbf'</span><span class="token1">]</span> <span class="token">></span> <span class="token3">time</span><span class="token1">(</span><span class="token1">)</span><span class="token1">)</span>
<span class="token2">return</span> <span class="token5">false</span><span class="token1">;</span>
<span class="token2">return</span> $payload<span class="token1">;</span>
<span class="token1">}</span>
<span class="token6">/**
* base64UrlEncode https://jwt.io/ 中base64UrlEncode编码实现
* @param string $input 需要编码的字符串
* @return string
*/</span>
private static <span class="token2">function</span> <span class="token3">base64UrlEncode</span><span class="token1">(</span>string $input<span class="token1">)</span>
<span class="token1">{</span>
<span class="token2">return</span> <span class="token3">str_replace</span><span class="token1">(</span><span class="token4">'='</span><span class="token1">,</span> <span class="token4">''</span><span class="token1">,</span> <span class="token3">strtr</span><span class="token1">(</span><span class="token3">base64_encode</span><span class="token1">(</span>$input<span class="token1">)</span><span class="token1">,</span> <span class="token4">'+/'</span><span class="token1">,</span> <span class="token4">'-_'</span><span class="token1">)</span><span class="token1">)</span><span class="token1">;</span>
<span class="token1">}</span>
<span class="token6">/**
* base64UrlEncode https://jwt.io/ 中base64UrlEncode解码实现
* @param string $input 需要解码的字符串
* @return bool|string
*/</span>
private static <span class="token2">function</span> <span class="token3">base64UrlDecode</span><span class="token1">(</span>string $input<span class="token1">)</span>
<span class="token1">{</span>
$remainder <span class="token">=</span> <span class="token3">strlen</span><span class="token1">(</span>$input<span class="token1">)</span> <span class="token">%</span> <span class="token5">4</span><span class="token1">;</span>
<span class="token2">if</span> <span class="token1">(</span>$remainder<span class="token1">)</span> <span class="token1">{</span>
$addlen <span class="token">=</span> <span class="token5">4</span> <span class="token">-</span> $remainder<span class="token1">;</span>
$input <span class="token1">.</span><span class="token">=</span> <span class="token3">str_repeat</span><span class="token1">(</span><span class="token4">'='</span><span class="token1">,</span> $addlen<span class="token1">)</span><span class="token1">;</span>
<span class="token1">}</span>
<span class="token2">return</span> <span class="token3">base64_decode</span><span class="token1">(</span><span class="token3">strtr</span><span class="token1">(</span>$input<span class="token1">,</span> <span class="token4">'-_'</span><span class="token1">,</span> <span class="token4">'+/'</span><span class="token1">)</span><span class="token1">)</span><span class="token1">;</span>
<span class="token1">}</span>
<span class="token6">/**
* HMACSHA256签名 https://jwt.io/ 中HMACSHA256签名实现
* @param string $input 为base64UrlEncode(header).".".base64UrlEncode(payload)
* @param string $key
* @param string $alg 算法方式
* @return mixed
*/</span>
private static <span class="token2">function</span> <span class="token3">signature</span><span class="token1">(</span>string $input<span class="token1">,</span> string $key<span class="token1">,</span> string $alg <span class="token">=</span> <span class="token4">'HS256'</span><span class="token1">)</span>
<span class="token1">{</span>
$alg_config<span class="token">=</span><span class="token3">array</span><span class="token1">(</span>
<span class="token4">'HS256'</span><span class="token">=</span><span class="token">></span><span class="token4">'sha256'</span>
<span class="token1">)</span><span class="token1">;</span>
<span class="token2">return</span> self<span class="token1">:</span><span class="token1">:</span><span class="token3">base64UrlEncode</span><span class="token1">(</span><span class="token3">hash_hmac</span><span class="token1">(</span>$alg_config<span class="token1">[</span>$alg<span class="token1">]</span><span class="token1">,</span> $input<span class="token1">,</span> $key<span class="token1">,</span><span class="token5">true</span><span class="token1">)</span><span class="token1">)</span><span class="token1">;</span>
<span class="token1">}</span>
<span class="token1">}</span>
<span class="token6">//测试和官网是否匹配begin</span>
$payload<span class="token">=</span><span class="token3">array</span><span class="token1">(</span><span class="token4">'sub'</span><span class="token">=</span><span class="token">></span><span class="token4">'1234567890'</span><span class="token1">,</span><span class="token4">'name'</span><span class="token">=</span><span class="token">></span><span class="token4">'John Doe'</span><span class="token1">,</span><span class="token4">'iat'</span><span class="token">=</span><span class="token">></span><span class="token5">1516239022</span><span class="token1">)</span><span class="token1">;</span>
$jwt<span class="token">=</span><span class="token2">new</span> <span class="token3">Jwt</span><span class="token1">;</span>
$token<span class="token">=</span>$jwt<span class="token">-</span><span class="token">></span><span class="token3">getToken</span><span class="token1">(</span>$payload<span class="token1">)</span><span class="token1">;</span>
echo <span class="token4">""</span><span class="token1">;</span>
echo $token<span class="token1">;</span>
<span class="token6">//对token进行验证签名</span>
$getPayload<span class="token">=</span>$jwt<span class="token">-</span><span class="token">></span><span class="token3">verifyToken</span><span class="token1">(</span>$token<span class="token1">)</span><span class="token1">;</span>
echo <span class="token4">"<br><br>"</span><span class="token1">;</span>
<span class="token3">var_dump</span><span class="token1">(</span>$getPayload<span class="token1">)</span><span class="token1">;</span>
echo <span class="token4">"<br><br>"</span><span class="token1">;</span>
<span class="token6">//测试和官网是否匹配end</span>
<span class="token6">//自己使用测试begin</span>
$payload_test<span class="token">=</span><span class="token3">array</span><span class="token1">(</span><span class="token4">'iss'</span><span class="token">=</span><span class="token">></span><span class="token4">'admin'</span><span class="token1">,</span><span class="token4">'iat'</span><span class="token">=</span><span class="token">></span><span class="token3">time</span><span class="token1">(</span><span class="token1">)</span><span class="token1">,</span><span class="token4">'exp'</span><span class="token">=</span><span class="token">></span><span class="token3">time</span><span class="token1">(</span><span class="token1">)</span><span class="token">+</span><span class="token5">7200</span><span class="token1">,</span><span class="token4">'nbf'</span><span class="token">=</span><span class="token">></span><span class="token3">time</span><span class="token1">(</span><span class="token1">)</span><span class="token1">,</span><span class="token4">'sub'</span><span class="token">=</span><span class="token">></span><span class="token4">'www.admin.com'</span><span class="token1">,</span><span class="token4">'jti'</span><span class="token">=</span><span class="token">></span><span class="token3">md5</span><span class="token1">(</span><span class="token3">uniqid</span><span class="token1">(</span><span class="token4">'JWT'</span><span class="token1">)</span><span class="token1">.</span><span class="token3">time</span><span class="token1">(</span><span class="token1">)</span><span class="token1">)</span><span class="token1">)</span><span class="token1">;</span><span class="token1">;</span>
$token_test<span class="token">=</span>Jwt<span class="token1">:</span><span class="token1">:</span><span class="token3">getToken</span><span class="token1">(</span>$payload_test<span class="token1">)</span><span class="token1">;</span>
echo <span class="token4">""</span><span class="token1">;</span>
echo $token_test<span class="token1">;</span>
<span class="token6">//对token进行验证签名</span>
$getPayload_test<span class="token">=</span>Jwt<span class="token1">:</span><span class="token1">:</span><span class="token3">verifyToken</span><span class="token1">(</span>$token_test<span class="token1">)</span><span class="token1">;</span>
echo <span class="token4">"<br><br>"</span><span class="token1">;</span>
<span class="token3">var_dump</span><span class="token1">(</span>$getPayload_test<span class="token1">)</span><span class="token1">;</span>
echo <span class="token4">"<br><br>"</span><span class="token1">;</span>
<span class="token6">//自己使用时候end</span>
```
```
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- nodeJS
- nodejs 会话技术
- 网络爬虫
- nodejs操作数据库
- nodejs中resolve()在url中的使用方法
- nvm node版本管理工具
- nrm
- npm安装的区别
- Buffer类
- Vue教程
- VUE安装
- vue脚手架
- vue创建路由
- Vuex
- vue懒加载
- axios网络请求
- ES6 Promise 对象
- ES6 async 函数
- vue绑定元素
- vue回调函数的理解
- indexof()
- vue生命周期
- router-view和keep-alive
- Mustache插值操作
- 计算属性 computed
- Locker实现localStrage的简便方法
- this.$router.push replace go的用法
- vue中使用refs 完成密码框明密文切换
- 计算属性和method的对比
- 父子组件之间的通信
- vue中路由的基本使用
- $router和$route的区别
- prototype 原型的使用
- vue的导航守卫
- vue的生命周期
- vue 路由hash改成history
- vue中路由详解
- vue中的回调函数
- slot插槽
- vuecli3 跨域
- vue和thinkphp中的前端设置代理跨域
- js中push pop unshift shift的区别
- 计算属性computed如何传参
- vue或uniapp中this.$set()时的语法格式
- 计算属性 vs 侦听属性 watch
- elementui片段
- vue修饰符
- vue---reduce高级与filter去重
- indexOf 和 includes
- require.context()的用法
- vite构建
- vue3.2新特性
- axios封装中间件和避免重复请求
- vue-router 4.x笔记
- Redis基本教程
- laravel基本教程
- 路由
- 视图
- 模型
- 创建数据表和操作数据库
- windows服务器清理mysql残留
- mysql语句
- mysql 语句整理一
- mysql概念和性能优化
- mysql常用工作遇到
- mysql
- mysql 5.7 groupby
- implode()和explode()
- mysql语句部分
- Mysql使用函数json_extract处理Json类型数据
- linux 基础教程
- linux常用命令
- linux 安装redis
- linux 安装nodejs
- linux软连接的创建 删除和修改
- pm2使用方法
- linux 编译和安装软件包
- linux操作用户
- centos8安装mysql5.7
- vscode操作eslint用法
- Docker教程
- JAVA
- implements Serializable的作用
- mac系统操作教程
- mac安装redis扩展
- 升级mac自带的php版本
- brew
- 占用端口
- GO笔记整理
- 目录结构
- 下划线
- 变量
- 切片
- 指针
- map
- 匿名字段
- nil含义
- socket
- 并发
- goroutine调度
- 管道
- GO正则表达式
- iota
- go moudles
- go 中函数的对比
- golang 参数传值
- Casbin
- 基本类型
- 实例化结构体
- 原生sql设置变量
- ------代码片段-------
- uniapp
- uniapp样式
- uniapp上传
- vue封装html转成excel
- yyladmin
- array_merge
- vuex部分
- vue前端部分
- yyladmin前端安装流程
- windows安装linux子系统
- yum和apt的区别