// Copyright 2016 The Gogs Authors. All rights reserved. // Copyright 2016 The Gitea Authors. All rights reserved. // SPDX-License-Identifier: MIT package generate import ( "encoding/base64" "fmt" "time" "forgejo.org/modules/util" "github.com/golang-jwt/jwt/v5" ) // NewInternalToken generate a new value intended to be used by INTERNAL_TOKEN. func NewInternalToken() (string, error) { secretKey := base64.RawURLEncoding.EncodeToString(util.CryptoRandomBytes(32)) now := time.Now() internalToken, err := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{ "nbf": now.Unix(), }).SignedString([]byte(secretKey)) if err != nil { return "", err } return internalToken, nil } const defaultJwtSecretLen = 32 // DecodeJwtSecret decodes a base64 encoded jwt secret into bytes, and check its length func DecodeJwtSecret(src string) ([]byte, error) { encoding := base64.RawURLEncoding decoded := make([]byte, encoding.DecodedLen(len(src))+3) if n, err := encoding.Decode(decoded, []byte(src)); err != nil { return nil, err } else if n != defaultJwtSecretLen { return nil, fmt.Errorf("invalid base64 decoded length: %d, expects: %d", n, defaultJwtSecretLen) } return decoded[:defaultJwtSecretLen], nil } // NewJwtSecret generates a new base64 encoded value intended to be used for JWT secrets. func NewJwtSecret() ([]byte, string) { bytes := util.CryptoRandomBytes(32) return bytes, base64.RawURLEncoding.EncodeToString(bytes) } // NewSecretKey generate a new value intended to be used by SECRET_KEY. func NewSecretKey() (string, error) { secretKey, err := util.CryptoRandomString(64) if err != nil { return "", err } return secretKey, nil }