71 lines
1.5 KiB
Go
71 lines
1.5 KiB
Go
package auth
|
|
|
|
import (
|
|
"errors"
|
|
"time"
|
|
|
|
"github.com/golang-jwt/jwt/v5"
|
|
)
|
|
|
|
type Claims struct {
|
|
UserID string `json:"user_id"`
|
|
Email string `json:"email"`
|
|
Role string `json:"role"`
|
|
jwt.RegisteredClaims
|
|
}
|
|
|
|
type TokenService struct {
|
|
secret []byte
|
|
accessTTL time.Duration
|
|
}
|
|
|
|
func NewTokenService(secret string, accessTTL time.Duration) TokenService {
|
|
return TokenService{
|
|
secret: []byte(secret),
|
|
accessTTL: accessTTL,
|
|
}
|
|
}
|
|
|
|
func (s TokenService) IssueAccessToken(userID string, email string, role string) (string, error) {
|
|
if len(s.secret) == 0 {
|
|
return "", errors.New("jwt secret is not configured")
|
|
}
|
|
|
|
now := time.Now()
|
|
claims := Claims{
|
|
UserID: userID,
|
|
Email: email,
|
|
Role: role,
|
|
RegisteredClaims: jwt.RegisteredClaims{
|
|
Subject: userID,
|
|
IssuedAt: jwt.NewNumericDate(now),
|
|
ExpiresAt: jwt.NewNumericDate(now.Add(s.accessTTL)),
|
|
},
|
|
}
|
|
|
|
return jwt.NewWithClaims(jwt.SigningMethodHS256, claims).SignedString(s.secret)
|
|
}
|
|
|
|
func (s TokenService) ParseAccessToken(tokenValue string) (Claims, error) {
|
|
if len(s.secret) == 0 {
|
|
return Claims{}, errors.New("jwt secret is not configured")
|
|
}
|
|
|
|
token, err := jwt.ParseWithClaims(tokenValue, &Claims{}, func(token *jwt.Token) (interface{}, error) {
|
|
if token.Method != jwt.SigningMethodHS256 {
|
|
return nil, errors.New("unexpected signing method")
|
|
}
|
|
return s.secret, nil
|
|
})
|
|
if err != nil {
|
|
return Claims{}, err
|
|
}
|
|
|
|
claims, ok := token.Claims.(*Claims)
|
|
if !ok || !token.Valid {
|
|
return Claims{}, errors.New("invalid token")
|
|
}
|
|
|
|
return *claims, nil
|
|
}
|