func getPrivateKey() *rsa.PrivateKey {
privateKeyFile, err := os.Open(settings.Get().PrivateKeyPath)
if err != nil {
panic(err)
}
pemfileinfo, _ := privateKeyFile.Stat()
var size int64 = pemfileinfo.Size()
pembytes := make([]byte, size)
buffer := bufio.NewReader(privateKeyFile)
_, err = buffer.Read(pembytes)
data, _ := pem.Decode([]byte(pembytes))
privateKeyFile.Close()
privateKeyImported, err := x509.ParsePKCS1PrivateKey(data.Bytes)
if err != nil {
panic(err)
}
return privateKeyImported
}
func getPublicKey() *rsa.PublicKey {
publicKeyFile, err := os.Open(settings.Get().PublicKeyPath)
if err != nil {
panic(err)
}
pemfileinfo, _ := publicKeyFile.Stat()
var size int64 = pemfileinfo.Size()
pembytes := make([]byte, size)
buffer := bufio.NewReader(publicKeyFile)
_, err = buffer.Read(pembytes)
data, _ := pem.Decode([]byte(pembytes))
publicKeyFile.Close()
publicKeyImported, err := x509.ParsePKIXPublicKey(data.Bytes)
if err != nil {
panic(err)
}
rsaPub, ok := publicKeyImported.(*rsa.PublicKey)
if !ok {
panic(err)
}
return rsaPub
}
func (backend *JWTAuthenticationBackend) GenerateToken(userUUID string) (string, error) {
token := jwt.New(jwt.SigningMethodRS512)
token.Claims["exp"] = time.Now().Add(time.Hour * time.Duration(settings.Get().JWTExpirationDelta)).Unix()
token.Claims["iat"] = time.Now().Unix()
token.Claims["sub"] = userUUID
tokenString, err := token.SignedString(backend.privateKey)
if err != nil {
panic(err)
return "", err
}
return tokenString, nil
}