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53df0bf9a4
- Unify the usage of [`crypto/rand.Read`](https://pkg.go.dev/crypto/rand#Read) to `util.CryptoRandomBytes`. - Refactor `util.CryptoRandomBytes` to never return an error. It is documented by Go, https://go.dev/issue/66821, to always succeed. So if we still receive a error or if the returned bytes read is not equal to the expected bytes to be read we panic (just to be on the safe side). - This simplifies a lot of code to no longer care about error handling. Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/7453 Reviewed-by: Earl Warren <earl-warren@noreply.codeberg.org> Co-authored-by: Gusted <postmaster@gusted.xyz> Co-committed-by: Gusted <postmaster@gusted.xyz>
61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
// Copyright 2016 The Gogs Authors. All rights reserved.
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// Copyright 2016 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package generate
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import (
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"encoding/base64"
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"fmt"
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"time"
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"forgejo.org/modules/util"
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"github.com/golang-jwt/jwt/v5"
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)
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// NewInternalToken generate a new value intended to be used by INTERNAL_TOKEN.
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func NewInternalToken() (string, error) {
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secretKey := base64.RawURLEncoding.EncodeToString(util.CryptoRandomBytes(32))
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now := time.Now()
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internalToken, err := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
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"nbf": now.Unix(),
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}).SignedString([]byte(secretKey))
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if err != nil {
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return "", err
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}
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return internalToken, nil
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}
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const defaultJwtSecretLen = 32
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// DecodeJwtSecret decodes a base64 encoded jwt secret into bytes, and check its length
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func DecodeJwtSecret(src string) ([]byte, error) {
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encoding := base64.RawURLEncoding
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decoded := make([]byte, encoding.DecodedLen(len(src))+3)
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if n, err := encoding.Decode(decoded, []byte(src)); err != nil {
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return nil, err
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} else if n != defaultJwtSecretLen {
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return nil, fmt.Errorf("invalid base64 decoded length: %d, expects: %d", n, defaultJwtSecretLen)
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}
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return decoded[:defaultJwtSecretLen], nil
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}
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// NewJwtSecret generates a new base64 encoded value intended to be used for JWT secrets.
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func NewJwtSecret() ([]byte, string) {
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bytes := util.CryptoRandomBytes(32)
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return bytes, base64.RawURLEncoding.EncodeToString(bytes)
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}
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// NewSecretKey generate a new value intended to be used by SECRET_KEY.
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func NewSecretKey() (string, error) {
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secretKey, err := util.CryptoRandomString(64)
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if err != nil {
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return "", err
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}
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return secretKey, nil
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}
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