111 lines
2.5 KiB
Go
111 lines
2.5 KiB
Go
package jwt
|
|
|
|
import (
|
|
"acc-server-manager/local/model"
|
|
"acc-server-manager/local/utl/errors"
|
|
"crypto/rand"
|
|
"encoding/base64"
|
|
goerrors "errors"
|
|
"time"
|
|
|
|
"github.com/golang-jwt/jwt/v4"
|
|
)
|
|
|
|
type Claims struct {
|
|
UserID string `json:"user_id"`
|
|
IsOpenToken bool `json:"is_open_token"`
|
|
jwt.RegisteredClaims
|
|
}
|
|
|
|
type JWTHandler struct {
|
|
SecretKey []byte
|
|
IsOpenToken bool
|
|
}
|
|
|
|
type OpenJWTHandler struct {
|
|
*JWTHandler
|
|
}
|
|
|
|
func NewOpenJWTHandler(jwtSecret string) *OpenJWTHandler {
|
|
jwtHandler := NewJWTHandler(jwtSecret)
|
|
jwtHandler.IsOpenToken = true
|
|
return &OpenJWTHandler{
|
|
JWTHandler: jwtHandler,
|
|
}
|
|
}
|
|
|
|
func NewJWTHandler(jwtSecret string) *JWTHandler {
|
|
if jwtSecret == "" {
|
|
errors.SafeFatal("JWT_SECRET environment variable is required and cannot be empty")
|
|
}
|
|
|
|
var secretKey []byte
|
|
|
|
if decoded, err := base64.StdEncoding.DecodeString(jwtSecret); err == nil && len(decoded) >= 32 {
|
|
secretKey = decoded
|
|
} else {
|
|
secretKey = []byte(jwtSecret)
|
|
}
|
|
|
|
if len(secretKey) < 32 {
|
|
errors.SafeFatal("JWT_SECRET must be at least 32 bytes long for security")
|
|
}
|
|
return &JWTHandler{
|
|
SecretKey: secretKey,
|
|
}
|
|
}
|
|
|
|
func (jh *JWTHandler) GenerateSecretKey() string {
|
|
key := make([]byte, 64) // 512 bits
|
|
if _, err := rand.Read(key); err != nil {
|
|
errors.SafeFatal("Failed to generate random key: %v", err)
|
|
}
|
|
return base64.StdEncoding.EncodeToString(key)
|
|
}
|
|
|
|
func (jh *JWTHandler) GenerateToken(userId string) (string, error) {
|
|
expirationTime := time.Now().Add(24 * time.Hour)
|
|
claims := &Claims{
|
|
UserID: userId,
|
|
RegisteredClaims: jwt.RegisteredClaims{
|
|
ExpiresAt: jwt.NewNumericDate(expirationTime),
|
|
},
|
|
IsOpenToken: jh.IsOpenToken,
|
|
}
|
|
|
|
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
|
|
return token.SignedString(jh.SecretKey)
|
|
}
|
|
|
|
func (jh *JWTHandler) GenerateTokenWithExpiry(user *model.User, expiry time.Time) (string, error) {
|
|
expirationTime := expiry
|
|
claims := &Claims{
|
|
UserID: user.ID.String(),
|
|
RegisteredClaims: jwt.RegisteredClaims{
|
|
ExpiresAt: jwt.NewNumericDate(expirationTime),
|
|
},
|
|
IsOpenToken: jh.IsOpenToken,
|
|
}
|
|
|
|
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
|
|
return token.SignedString(jh.SecretKey)
|
|
}
|
|
|
|
func (jh *JWTHandler) ValidateToken(tokenString string) (*Claims, error) {
|
|
claims := &Claims{}
|
|
|
|
token, err := jwt.ParseWithClaims(tokenString, claims, func(token *jwt.Token) (interface{}, error) {
|
|
return jh.SecretKey, nil
|
|
})
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if !token.Valid {
|
|
return nil, goerrors.New("invalid token")
|
|
}
|
|
|
|
return claims, nil
|
|
}
|