/
handler.go
71 lines (60 loc) · 1.55 KB
/
handler.go
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package auth
import (
"errors"
"time"
"github.com/golang-jwt/jwt/v4"
"golang.org/x/crypto/bcrypt"
"github.com/dzoniops/user-service/models"
)
// TODO: change secret key and ExpiresAt time
// TODO: maybe add handler like in old project
var jwtKey = []byte("my_secret_key")
type JwtClaims struct {
*jwt.RegisteredClaims
Id int64
Username string
Role string
}
func HashPassword(pass string) string {
bytes, _ := bcrypt.GenerateFromPassword([]byte(pass), bcrypt.DefaultCost)
return string(bytes)
}
func CheckPasswordHash(password, hash string) bool {
err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
return err == nil
}
func GenerateToken(user models.User) (signedToken string, err error) {
claims := &JwtClaims{
RegisteredClaims: &jwt.RegisteredClaims{
ExpiresAt: &jwt.NumericDate{Time: time.Now().Local().Add(time.Hour * time.Duration(100))}},
Id: user.ID,
Username: user.Username,
Role: user.Role,
}
t := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
signedToken, err = t.SignedString(jwtKey)
if err != nil {
return "", err
}
return signedToken, nil
}
func ValidateToken(signedToken string) (claims *JwtClaims, err error) {
token, err := jwt.ParseWithClaims(
signedToken,
&JwtClaims{},
func(token *jwt.Token) (interface{}, error) {
return jwtKey, nil
},
)
if err != nil {
return nil, err
}
if !token.Valid {
return nil, errors.New("invalid token")
}
claims, ok := token.Claims.(*JwtClaims)
if !ok {
return nil, errors.New("couldn't parse claims")
}
return claims, nil
}