61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
package token
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/golang-jwt/jwt/v5"
|
|
)
|
|
|
|
// Claims 定义了 JWT 的声明结构
|
|
type Claims struct {
|
|
UserID uint `json:"user_id"`
|
|
jwt.RegisteredClaims
|
|
}
|
|
|
|
// TokenService 定义了 token 操作的接口
|
|
type TokenService interface {
|
|
GenerateToken(userID uint) (string, error)
|
|
ParseToken(tokenString string) (*Claims, error)
|
|
}
|
|
|
|
// tokenService 是 TokenService 接口的实现
|
|
type tokenService struct {
|
|
secret []byte
|
|
}
|
|
|
|
// NewTokenService 创建并返回一个新的 TokenService 实例
|
|
func NewTokenService(secret []byte) TokenService {
|
|
return &tokenService{secret: secret}
|
|
}
|
|
|
|
// GenerateToken 生成一个新的 JWT token
|
|
func (s *tokenService) GenerateToken(userID uint) (string, error) {
|
|
nowTime := time.Now()
|
|
expireTime := nowTime.Add(24 * time.Hour) // Token 有效期为 24 小时
|
|
|
|
claims := Claims{
|
|
UserID: userID,
|
|
RegisteredClaims: jwt.RegisteredClaims{
|
|
ExpiresAt: jwt.NewNumericDate(expireTime),
|
|
Issuer: "pig-farm-controller",
|
|
},
|
|
}
|
|
|
|
tokenClaims := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
|
|
token, err := tokenClaims.SignedString(s.secret)
|
|
return token, err
|
|
}
|
|
|
|
// ParseToken 解析并验证 JWT token
|
|
func (s *tokenService) ParseToken(tokenString string) (*Claims, error) {
|
|
token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
|
|
return s.secret, nil
|
|
})
|
|
|
|
if claims, ok := token.Claims.(*Claims); ok && token.Valid {
|
|
return claims, nil
|
|
}
|
|
|
|
return nil, err
|
|
}
|