init: 项目初始代码

2026-10-14 14:00:29 +08:00
commit cc434cf89f
464 changed files with 66984 additions and 0 deletions
--- a/extend/utils/Jwt.php
+++ b/extend/utils/Jwt.php
@@ -0,0 +1,168 @@
+<?php
+
+namespace utils;
+
+class Jwt
+{
+	private $typ = 'JWT';
+
+	#key用户生成secret
+	private $key = 'jSCq5heSuhDiuhSsad441wq6541SDA5415W6QE564dsda';
+
+	private $secret;
+
+	#加密算法
+	private $alg = 'HS256';
+
+	#签发者-payload组成部分
+	private $iss;
+
+	#过期时间-payload组成部分
+	private $exp;
+
+	#签发时间-payload组成部分
+	private $iat;
+
+	#用户基础信息-payload组成部分
+	private $user_info;
+
+	#过期多久之前有效
+	private $timeout = 7200;
+
+	public function __construct($config)
+	{
+		$this->config = $config;
+		$this->init();
+	}
+
+	private function init()
+	{
+		$this->iss = $this->config['iss'];
+		$this->exp = $this->config['exp'];
+		$this->iat = time();
+	}
+
+    /**
+     * 获取token
+     * @param array $user_info
+     * @return string
+     */
+	public function getToken(array $user_info):string
+	{
+		//头信息
+		$header = [
+			'typ' => $this->typ,
+			'alg' => $this->alg
+		];
+		$base64_header = base64_encode(json_encode($header));
+
+		//有效载荷
+		$payload = [
+			'iss' => $this->iss,
+			'exp' => $this->exp,
+			'iat' => $this->iat,
+			'user_info' => $user_info,
+		];
+		$base64_payload = base64_encode(json_encode($payload));
+
+		//签名信息
+		$this->secret = $this->getSecret($user_info);
+		$signature = $base64_header . $base64_payload . $this->secret;
+		$base64_signature = $this->enc($this->alg, $signature);
+
+		$jwt_token = $base64_header . '.' . $base64_payload . '.' . $base64_signature;
+		return $jwt_token;
+	}
+
+    /**
+     * 校验token
+     * @param $jwt_token
+     * @return int
+     */
+	public function checkToken($jwt_token)
+	{
+		$arr = explode('.', $jwt_token);
+		if (count($arr) < 3) {
+			return -1;
+		}
+
+		$base64_header = $arr[0];
+		$base64_payload = $arr[1];
+		$base64_signature = $arr[2];
+
+		$payload = json_decode(base64_decode($base64_payload), true);
+		if (!is_array($payload) || !isset($payload['exp']) || !isset($payload['iat']) || !isset($payload['user_info'])) {
+			return -2;
+		}
+
+		//生成签名，比较
+		$this->secret = $this->getSecret($payload['user_info']);
+		$tmp_signature = $base64_header . $base64_payload . $this->secret;
+		$tmp_base64_signature = $this->enc($this->alg, $tmp_signature);
+
+		if ($base64_signature !== $tmp_base64_signature) {
+			return -3;
+		}
+
+		// 是否过期
+		if ($payload['exp'] + $payload['iat'] - time() < 0) {
+			// token过期了
+			return -4;
+		} else {
+			// token没有过期
+			if ($payload['exp'] + $payload['iat'] - time() - $this->timeout < 0) {
+				return 201;
+			}
+
+			return 200;
+		}
+	}
+
+    /**
+     * 获取用户信息
+     * @param $jwt_token
+     * @return array|mixed
+     */
+	public function getUserInfo($jwt_token)
+	{
+		$arr = explode('.', $jwt_token);
+		if (count($arr) < 3) {
+			return [];
+		}
+
+		$base64_payload = $arr[1];
+
+		$payload = json_decode(base64_decode($base64_payload), true);
+		if (!is_array($payload) || !isset($payload['user_info'])) {
+			return [];
+		}
+
+		return $payload['user_info'];
+	}
+
+
+    /**
+     * 获取secret，保证每个用户的secret都不同
+     * @param $user_info
+     * @return string
+     */
+	private function getSecret($user_info)
+	{
+		return md5($this->key . json_encode($user_info));
+	}
+
+    /**
+     * 加密
+     * @param $enc_type
+     * @param $content
+     * @return string
+     */
+	private function enc($enc_type, $content)
+	{
+		if ($enc_type == 'HS256')
+		{
+			return hash('sha256', $content);
+		}
+	}
+
+}