Files

78 lines
1.7 KiB
Go

package service
import (
"errors"
"esauth"
"esauth/pkg/repository"
"math"
"os"
"time"
"github.com/dgrijalva/jwt-go"
)
const (
tokenTTL = 12 * time.Hour
)
type tokenClaims struct {
jwt.StandardClaims
UserId int64 `json:"user_id"`
}
type AuthService struct {
repo *repository.Repository
}
func NewAuthService(repo *repository.Repository) *AuthService {
return &AuthService{repo: repo}
}
func (s *AuthService) CreateUser(user *esauth.User) (int64, error) {
return s.repo.CreateUser(user)
}
func (s *AuthService) SaveUser(user *esauth.User) (int64, error) {
return s.repo.SaveUser(user)
}
func (s *AuthService) GenerateToken(userId int64) (string, error) {
token := jwt.NewWithClaims(jwt.SigningMethodHS256, &tokenClaims{
jwt.StandardClaims{
ExpiresAt: time.Now().Add(tokenTTL).Unix(),
IssuedAt: time.Now().Unix(),
},
userId,
})
return token.SignedString([]byte(os.Getenv("SIGN_KEY")))
}
func (s *AuthService) GenerateInfinityToken(userId int64) (string, error) {
token := jwt.NewWithClaims(jwt.SigningMethodHS256, &tokenClaims{
jwt.StandardClaims{
ExpiresAt: math.MaxInt64,
IssuedAt: time.Now().Unix(),
},
userId,
})
return token.SignedString([]byte(os.Getenv("SIGN_KEY")))
}
func (s *AuthService) ParseToken(accessToken string) (int64, error) {
token, err := jwt.ParseWithClaims(accessToken, &tokenClaims{}, func(token *jwt.Token) (interface{}, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, errors.New("invalid signing method")
}
return []byte(os.Getenv("SIGN_KEY")), nil
})
if err != nil {
return 0, err
}
claims, ok := token.Claims.(*tokenClaims)
if !ok {
return 0, errors.New("token claims are not of type *tokenClaims")
}
return claims.UserId, nil
}