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nl-jqrl-api/app/Service/common/JWTService.php
2025-05-12 16:13:46 +08:00

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<?php
namespace App\Service\common;
use Firebase\JWT\JWT;
use Firebase\JWT\Key;
use Exception;
class JWTService
{
private static mixed $_instance;
private string $secretKey = 'cc_spa_jwt_secret_key'; // 请替换为你的密钥
private string $token;
/**
* 获取实例
* @return null|static
*/
public static function getInstance(): null|static
{
$name = get_called_class();
if (!isset(self::$_instance[$name])) {
self::$_instance[$name] = new static();
}
return self::$_instance[$name];
}
/**
* 获取 Token
* @return $this|null
* @throws Exception
*/
public function getToken(): null|static
{
$token = request()->bearerToken();
if (empty($token)) return UtilsService::getInstance()->notAuth('请先登录');
$this->token = $token;
return $this;
}
/**
* 生成 JWT Token
* @param array $data 要嵌入到 token 中的数据
* @return string
*/
public function generateToken(array $data): string
{
$issuedAt = time();
$expirationTime = $issuedAt + config('nl.redis.jwt_ttl', 600000);
$payload = [
'iat' => $issuedAt,
'exp' => $expirationTime,
'data' => $data
];
RedisService::getInstance()->init(config('nl.redis.jwt'))->set($data['id'], json_encode($data));
return JWT::encode($payload, $this->secretKey, 'HS256');
}
/**
* 解析 JWT Token
* @return object|null 返回解码后的 payload 或者 null 如果验证失败
* @throws Exception
*/
public function parseToken(): ?object
{
try {
if (empty($this->token)) return UtilsService::getInstance()->notAuth('请先登录');
return JWT::decode($this->token, new Key($this->secretKey, 'HS256'));
} catch (Exception $e) {
return UtilsService::getInstance()->notAuth('【1】Token解析失败请重新登录'. $e->getMessage());
}
}
/**
* 解析 JWT Token
* @return array|null 返回解码后的 payload 或者 null 如果验证失败
* @throws Exception
*/
public function getUserInfo(): ?array
{
try {
$jwt = $this->parseToken();
$user = RedisService::getInstance()->init(config('nl.redis.jwt'))->get($jwt->data->id);
if (empty($user)) return UtilsService::getInstance()->notAuth('登录状态过期');
return json_decode($user, true);
} catch (Exception $e) {
return UtilsService::getInstance()->notAuth('【2】Token解析失败请重新登录'. $e->getMessage());
}
}
/**
* 续签 JWT Token
* @return string|null 新的 JWT 字符串或者 null 如果原 token 已过期或无效
* @throws Exception
*/
public function refreshToken(): ?string
{
$decoded = $this->parseToken();
if ($decoded === null || !property_exists($decoded, 'data')) {
return null;
}
return $this->generateToken((array)$decoded->data);
}
}