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token.go
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token.go
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package jwti
import (
"errors"
"github.com/golang-jwt/jwt/v5"
"time"
)
var (
Parser = jwt.NewParser()
err = errors.New("无效的token")
)
// 如果只存一个id,jwt的意义在哪呢,跟session_id有什么区别
// jwt应该存放一些用户不能更改的信息,所以不能全存在jwt里
// 或者说用户每更改一次信息就刷新token(貌似可行)
// 有泛型这里多好写
type Claims struct {
UserId uint64 `json:"userId"`
*jwt.RegisteredClaims
}
type CustomClaims struct {
CustomInfo interface{} `json:"customInfo"`
*jwt.RegisteredClaims
}
func NewStandardClaims(maxAge int64, sign string) *jwt.RegisteredClaims {
now := time.Now()
exp := now.Add(time.Duration(maxAge))
return &jwt.RegisteredClaims{
ExpiresAt: &jwt.NumericDate{Time: exp},
IssuedAt: &jwt.NumericDate{Time: now},
Issuer: sign,
}
}
func GenerateToken(claims jwt.Claims, secret interface{}) (string, error) {
tokenClaims := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
token, err := tokenClaims.SignedString(secret)
return token, err
}
func ParseToken(claims jwt.Claims, token string, secret []byte) (*jwt.Token, error) {
return Parser.ParseWithClaims(token, claims, func(token *jwt.Token) (interface{}, error) {
return secret, nil
})
}
func ParseTokenWithKeyFunc(claims jwt.Claims, token string, f func(token *jwt.Token) (interface{}, error)) (*jwt.Token, error) {
return Parser.ParseWithClaims(token, claims, f)
}