43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
package auth
|
|
|
|
import (
|
|
"errors"
|
|
"time"
|
|
|
|
jwt "github.com/golang-jwt/jwt/v5"
|
|
)
|
|
|
|
type Claims struct {
|
|
Username string `json:"username"`
|
|
jwt.RegisteredClaims
|
|
}
|
|
|
|
func GenerateToken(username, secret string, ttl time.Duration) (string, error) {
|
|
now := time.Now()
|
|
claims := Claims{
|
|
Username: username,
|
|
RegisteredClaims: jwt.RegisteredClaims{
|
|
IssuedAt: jwt.NewNumericDate(now),
|
|
ExpiresAt: jwt.NewNumericDate(now.Add(ttl)),
|
|
},
|
|
}
|
|
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
|
|
return token.SignedString([]byte(secret))
|
|
}
|
|
|
|
func ParseToken(tokenStr, secret string) (string, error) {
|
|
token, err := jwt.ParseWithClaims(tokenStr, &Claims{}, func(token *jwt.Token) (interface{}, error) {
|
|
return []byte(secret), nil
|
|
})
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
if !token.Valid {
|
|
return "", errors.New("invalid token")
|
|
}
|
|
claims, ok := token.Claims.(*Claims)
|
|
if !ok {
|
|
return "", errors.New("invalid claims")
|
|
}
|
|
return claims.Username, nil
|
|
} |