first commit

2022-08-19 19:48:37 +08:00
commit afdd648b65
3275 changed files with 631084 additions and 0 deletions
--- a/app/common/library/Jwt.php
+++ b/app/common/library/Jwt.php
@@ -0,0 +1,164 @@
+<?php
+
+declare(strict_types=1);
+// +----------------------------------------------------------------------
+// | swiftAdmin 极速开发框架 [基于WebMan开发]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2020-2030 http://www.swiftadmin.net
+// +----------------------------------------------------------------------
+// | swiftAdmin.net High Speed Development Framework
+// +----------------------------------------------------------------------
+// | Author: meystack <coolsec@foxmail.com> Apache 2.0 License
+// +----------------------------------------------------------------------
+namespace app\common\library;
+
+/**
+ * Jwt简易验证类
+ * Class Jwt
+ * @package app\common\library
+ * @author meystack <
+ */
+class Jwt
+{
+    /**
+     * @var object 对象实例
+     */
+    protected static $instance = null;
+
+    // 头部信息
+    private static $header = array(
+        'alg' => 'HS256', //生成signature的算法
+        'typ' => 'JWT'    //类型
+    );
+
+    private static $key = '123456';
+
+    /**
+     * 类构造函数
+     * class constructor.
+     */
+    public function __construct()
+    {
+    }
+
+    /**
+     * 初始化
+     * @access public
+     * @param array $options 参数
+     * @return Jwt
+     */
+
+    public static function instance($options = [])
+    {
+        if (is_null(self::$instance)) {
+            self::$instance = new static($options);
+        }
+        // 返回实例
+        return self::$instance;
+    }
+
+    /**
+     * 获取jwt token
+     * @param $payload
+     * [
+     *  'iss'=>'jwt_admin',                 // 该JWT的签发者
+     *  'iat'=>time(),                      // 签发时间
+     *  'exp'=>time()+7200,                 // 过期时间
+     *  'nbf'=>time()+60,                   // 该时间之前不接收处理该Token
+     *  'sub'=>'www.admin.com',             // 面向的用户
+     *  'jti'=>md5(uniqid('JWT').time())    // 该Token唯一标识
+     * ]
+     * @return bool|string
+     */
+    public static function getToken($payload)
+    {
+        if (is_array($payload)) {
+            $base64header = self::base64UrlEncode(json_encode(self::$header, JSON_UNESCAPED_UNICODE));
+            $base64payload = self::base64UrlEncode(json_encode($payload, JSON_UNESCAPED_UNICODE));
+            return $base64header . '.' . $base64payload . '.' . self::signature($base64header . '.' . $base64payload, self::$key, self::$header['alg']);
+        } else {
+            return false;
+        }
+    }
+
+
+    /**
+     * 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
+     */
+    public static function verifyToken(string $Token)
+    {
+        $tokens = explode('.', $Token);
+        if (count($tokens) != 3)
+            return false;
+
+        list($base64header, $base64payload, $sign) = $tokens;
+
+        // 获取jwt算法
+        $base64DecodeHeader = json_decode(self::base64UrlDecode($base64header), JSON_OBJECT_AS_ARRAY);
+        if (empty($base64DecodeHeader['alg']))
+            return false;
+
+        // 签名验证
+        if (self::signature($base64header . '.' . $base64payload, self::$key, $base64DecodeHeader['alg']) !== $sign)
+            return false;
+
+        $payload = json_decode(self::base64UrlDecode($base64payload), JSON_OBJECT_AS_ARRAY);
+
+        // 签发时间大于当前服务器时间验证失败
+        if (isset($payload['iat']) && $payload['iat'] > time())
+            return false;
+
+        // 过期时间小宇当前服务器时间验证失败
+        if (isset($payload['exp']) && $payload['exp'] < time())
+            return false;
+
+        // 该nbf时间之前不接收处理该Token
+        if (isset($payload['nbf']) && $payload['nbf'] > time())
+            return false;
+
+        return $payload;
+    }
+
+    /**
+     * base64UrlEncode   https://jwt.io/  中base64UrlEncode编码实现
+     * @param string $input 需要编码的字符串
+     * @return string
+     */
+    private static function base64UrlEncode(string $input): string
+    {
+        return str_replace('=', '', strtr(base64_encode($input), '+/', '-_'));
+    }
+
+    /**
+     * base64UrlEncode  https://jwt.io/  中base64UrlEncode解码实现
+     * @param string $input 需要解码的字符串
+     * @return bool|string
+     */
+    private static function base64UrlDecode(string $input)
+    {
+        $remainder = strlen($input) % 4;
+        if ($remainder) {
+            $addLen = 4 - $remainder;
+            $input .= str_repeat('=', $addLen);
+        }
+        return base64_decode(strtr($input, '-_', '+/'));
+    }
+
+    /**
+     * 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 string
+     */
+    private static function signature(string $input, string $key, string $alg = 'HS256'): string
+    {
+        $alg_config = array(
+            'HS256' => 'sha256'
+        );
+        return self::base64UrlEncode(hash_hmac($alg_config[$alg], $input, $key, true));
+    }
+
+}