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jwt_util.go
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jwt_util.go
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package api
import (
"errors"
"fmt"
"github.com/dgrijalva/jwt-go/v4"
"time"
)
type Users struct {
Username string `json:"username"`
Password string `json:"password"`
}
type CustomClaims struct {
Users
jwt.StandardClaims
}
var Secret = []byte("aurora-admin")
func GenToken(user Users) (string, error) {
claim := CustomClaims{
user,
jwt.StandardClaims{
ExpiresAt: jwt.At(time.Now().Add(time.Hour * 4)),
Issuer: "aurora-admin",
},
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claim)
return token.SignedString(Secret)
}
func ParseToken(tokenStr string) (*CustomClaims, error) {
token, err := jwt.ParseWithClaims(tokenStr, &CustomClaims{}, func(token *jwt.Token) (interface{}, error) {
return Secret, nil
})
if err != nil {
fmt.Println(" token parse err:", err)
return nil, err
}
if claims, ok := token.Claims.(*CustomClaims); ok && token.Valid {
return claims, nil
}
return nil, errors.New("invalid token")
}
func RefreshToken(tokenStr string) (string, error) {
jwt.TimeFunc = func() time.Time {
return time.Unix(0, 0)
}
token, err := jwt.ParseWithClaims(tokenStr, &CustomClaims{}, func(token *jwt.Token) (interface{}, error) {
return Secret, nil
})
if err != nil {
return "", err
}
if claims, ok := token.Claims.(*CustomClaims); ok && token.Valid {
jwt.TimeFunc = time.Now
claims.StandardClaims.ExpiresAt = jwt.At(time.Now().Add(time.Hour * 4))
return GenToken(claims.Users)
}
return "", errors.New("Cloudn't handle this token")
}