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Use general token signing secret (#29205)

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Use a clearly defined "signing secret" for token signing.
This commit is contained in:
wxiaoguang 2024-02-19 01:39:04 +08:00 committed by GitHub
parent c2a8aacae5
commit 8be198cdef
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AI 샘플 코드 생성 중입니다

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9 changed files with 82 additions and 33 deletions
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2
modules/base/tool.go
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@ -115,7 +115,7 @@ func CreateTimeLimitCode(data string, minutes int, startInf any) string {
// create sha1 encode string
sh := sha1.New()
_, _ = sh.Write([]byte(fmt.Sprintf("%s%s%s%s%d", data, setting.SecretKey, startStr, endStr, minutes)))
_, _ = sh.Write([]byte(fmt.Sprintf("%s%s%s%s%d", data, hex.EncodeToString(setting.GetGeneralTokenSigningSecret()), startStr, endStr, minutes)))
encoded := hex.EncodeToString(sh.Sum(nil))
code := fmt.Sprintf("%s%06d%s", startStr, minutes, encoded)

3
modules/context/context.go
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@ -6,6 +6,7 @@ package context
import (
"context"
"encoding/hex"
"fmt"
"html/template"
"io"
@ -124,7 +125,7 @@ func NewWebContext(base *Base, render Render, session session.Store) *Context {
func Contexter() func(next http.Handler) http.Handler {
rnd := templates.HTMLRenderer()
csrfOpts := CsrfOptions{
Secret: setting.SecretKey,
Secret: hex.EncodeToString(setting.GetGeneralTokenSigningSecret()),
Cookie: setting.CSRFCookieName,
SetCookie: true,
Secure: setting.SessionConfig.Secure,

21
modules/setting/lfs.go
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@ -12,12 +12,11 @@ import (
// LFS represents the configuration for Git LFS
var LFS = struct {
StartServer bool `ini:"LFS_START_SERVER"`
JWTSecretBase64 string `ini:"LFS_JWT_SECRET"`
JWTSecretBytes []byte `ini:"-"`
HTTPAuthExpiry time.Duration `ini:"LFS_HTTP_AUTH_EXPIRY"`
MaxFileSize int64 `ini:"LFS_MAX_FILE_SIZE"`
LocksPagingNum int `ini:"LFS_LOCKS_PAGING_NUM"`
StartServer bool `ini:"LFS_START_SERVER"`
JWTSecretBytes []byte `ini:"-"`
HTTPAuthExpiry time.Duration `ini:"LFS_HTTP_AUTH_EXPIRY"`
MaxFileSize int64 `ini:"LFS_MAX_FILE_SIZE"`
LocksPagingNum int `ini:"LFS_LOCKS_PAGING_NUM"`
Storage *Storage
}{}
@ -59,10 +58,10 @@ func loadLFSFrom(rootCfg ConfigProvider) error {
return nil
}
LFS.JWTSecretBase64 = loadSecret(rootCfg.Section("server"), "LFS_JWT_SECRET_URI", "LFS_JWT_SECRET")
LFS.JWTSecretBytes, err = generate.DecodeJwtSecretBase64(LFS.JWTSecretBase64)
jwtSecretBase64 := loadSecret(rootCfg.Section("server"), "LFS_JWT_SECRET_URI", "LFS_JWT_SECRET")
LFS.JWTSecretBytes, err = generate.DecodeJwtSecretBase64(jwtSecretBase64)
if err != nil {
LFS.JWTSecretBytes, LFS.JWTSecretBase64, err = generate.NewJwtSecretWithBase64()
LFS.JWTSecretBytes, jwtSecretBase64, err = generate.NewJwtSecretWithBase64()
if err != nil {
return fmt.Errorf("error generating JWT Secret for custom config: %v", err)
}
@ -72,8 +71,8 @@ func loadLFSFrom(rootCfg ConfigProvider) error {
if err != nil {
return fmt.Errorf("error saving JWT Secret for custom config: %v", err)
}
rootCfg.Section("server").Key("LFS_JWT_SECRET").SetValue(LFS.JWTSecretBase64)
saveCfg.Section("server").Key("LFS_JWT_SECRET").SetValue(LFS.JWTSecretBase64)
rootCfg.Section("server").Key("LFS_JWT_SECRET").SetValue(jwtSecretBase64)
saveCfg.Section("server").Key("LFS_JWT_SECRET").SetValue(jwtSecretBase64)
if err := saveCfg.Save(); err != nil {
return fmt.Errorf("error saving JWT Secret for custom config: %v", err)
}

36
modules/setting/oauth2.go
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@ -6,6 +6,7 @@ package setting
import (
"math"
"path/filepath"
"sync/atomic"
"code.gitea.io/gitea/modules/generate"
"code.gitea.io/gitea/modules/log"
@ -96,7 +97,6 @@ var OAuth2 = struct {
RefreshTokenExpirationTime int64
InvalidateRefreshTokens bool
JWTSigningAlgorithm string `ini:"JWT_SIGNING_ALGORITHM"`
JWTSecretBase64 string `ini:"JWT_SECRET"`
JWTSigningPrivateKeyFile string `ini:"JWT_SIGNING_PRIVATE_KEY_FILE"`
MaxTokenLength int
DefaultApplications []string
@ -128,28 +128,50 @@ func loadOAuth2From(rootCfg ConfigProvider) {
return
}
OAuth2.JWTSecretBase64 = loadSecret(sec, "JWT_SECRET_URI", "JWT_SECRET")
jwtSecretBase64 := loadSecret(sec, "JWT_SECRET_URI", "JWT_SECRET")
if !filepath.IsAbs(OAuth2.JWTSigningPrivateKeyFile) {
OAuth2.JWTSigningPrivateKeyFile = filepath.Join(AppDataPath, OAuth2.JWTSigningPrivateKeyFile)
}
if InstallLock {
if _, err := generate.DecodeJwtSecretBase64(OAuth2.JWTSecretBase64); err != nil {
_, OAuth2.JWTSecretBase64, err = generate.NewJwtSecretWithBase64()
jwtSecretBytes, err := generate.DecodeJwtSecretBase64(jwtSecretBase64)
if err != nil {
jwtSecretBytes, jwtSecretBase64, err = generate.NewJwtSecretWithBase64()
if err != nil {
log.Fatal("error generating JWT secret: %v", err)
}
saveCfg, err := rootCfg.PrepareSaving()
if err != nil {
log.Fatal("save oauth2.JWT_SECRET failed: %v", err)
}
rootCfg.Section("oauth2").Key("JWT_SECRET").SetValue(OAuth2.JWTSecretBase64)
saveCfg.Section("oauth2").Key("JWT_SECRET").SetValue(OAuth2.JWTSecretBase64)
rootCfg.Section("oauth2").Key("JWT_SECRET").SetValue(jwtSecretBase64)
saveCfg.Section("oauth2").Key("JWT_SECRET").SetValue(jwtSecretBase64)
if err := saveCfg.Save(); err != nil {
log.Fatal("save oauth2.JWT_SECRET failed: %v", err)
}
}
generalSigningSecret.Store(&jwtSecretBytes)
}
}
// generalSigningSecret is used as container for a []byte value
// instead of an additional mutex, we use CompareAndSwap func to change the value thread save
var generalSigningSecret atomic.Pointer[[]byte]
func GetGeneralTokenSigningSecret() []byte {
old := generalSigningSecret.Load()
if old == nil || len(*old) == 0 {
jwtSecret, _, err := generate.NewJwtSecretWithBase64()
if err != nil {
log.Fatal("Unable to generate general JWT secret: %s", err.Error())
}
if generalSigningSecret.CompareAndSwap(old, &jwtSecret) {
// FIXME: in main branch, the signing token should be refactored (eg: one unique for LFS/OAuth2/etc ...)
log.Warn("OAuth2 is not enabled, unable to use a persistent signing secret, a new one is generated, which is not persistent between restarts and cluster nodes")
return jwtSecret
}
return *generalSigningSecret.Load()
}
return *old
}

34
modules/setting/oauth2_test.go Normal file
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@ -0,0 +1,34 @@
// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package setting
import (
"testing"
"code.gitea.io/gitea/modules/generate"
"code.gitea.io/gitea/modules/test"
"github.com/stretchr/testify/assert"
)
func TestGetGeneralSigningSecret(t *testing.T) {
// when there is no general signing secret, it should be generated, and keep the same value
assert.Nil(t, generalSigningSecret.Load())
s1 := GetGeneralTokenSigningSecret()
assert.NotNil(t, s1)
s2 := GetGeneralTokenSigningSecret()
assert.Equal(t, s1, s2)
// the config value should always override any pre-generated value
cfg, _ := NewConfigProviderFromData(`
[oauth2]
JWT_SECRET = BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
`)
defer test.MockVariableValue(&InstallLock, true)()
loadOAuth2From(cfg)
actual := GetGeneralTokenSigningSecret()
expected, _ := generate.DecodeJwtSecretBase64("BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB")
assert.Len(t, actual, 32)
assert.EqualValues(t, expected, actual)
}

4
services/actions/auth.go
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@ -38,7 +38,7 @@ func CreateAuthorizationToken(taskID, runID, jobID int64) (string, error) {
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
tokenString, err := token.SignedString([]byte(setting.SecretKey))
tokenString, err := token.SignedString(setting.GetGeneralTokenSigningSecret())
if err != nil {
return "", err
}
@ -62,7 +62,7 @@ func ParseAuthorizationToken(req *http.Request) (int64, error) {
if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", t.Header["alg"])
}
return []byte(setting.SecretKey), nil
return setting.GetGeneralTokenSigningSecret(), nil
})
if err != nil {
return 0, err

2
services/actions/auth_test.go
View File

@ -20,7 +20,7 @@ func TestCreateAuthorizationToken(t *testing.T) {
assert.NotEqual(t, "", token)
claims := jwt.MapClaims{}
_, err = jwt.ParseWithClaims(token, claims, func(t *jwt.Token) (interface{}, error) {
return []byte(setting.SecretKey), nil
return setting.GetGeneralTokenSigningSecret(), nil
})
assert.Nil(t, err)
scp, ok := claims["scp"]

9
services/auth/source/oauth2/jwtsigningkey.go
View File

@ -18,7 +18,6 @@ import (
"path/filepath"
"strings"
"code.gitea.io/gitea/modules/generate"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
@ -301,7 +300,7 @@ func InitSigningKey() error {
case "HS384":
fallthrough
case "HS512":
key, err = loadSymmetricKey()
key = setting.GetGeneralTokenSigningSecret()
case "RS256":
fallthrough
case "RS384":
@ -334,12 +333,6 @@ func InitSigningKey() error {
return nil
}
// loadSymmetricKey checks if the configured secret is valid.
// If it is not valid, it will return an error.
func loadSymmetricKey() (any, error) {
return generate.DecodeJwtSecretBase64(setting.OAuth2.JWTSecretBase64)
}
// loadOrCreateAsymmetricKey checks if the configured private key exists.
// If it does not exist a new random key gets generated and saved on the configured path.
func loadOrCreateAsymmetricKey() (any, error) {

4
services/packages/auth.go
View File

@ -33,7 +33,7 @@ func CreateAuthorizationToken(u *user_model.User) (string, error) {
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
tokenString, err := token.SignedString([]byte(setting.SecretKey))
tokenString, err := token.SignedString(setting.GetGeneralTokenSigningSecret())
if err != nil {
return "", err
}
@ -57,7 +57,7 @@ func ParseAuthorizationToken(req *http.Request) (int64, error) {
if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", t.Header["alg"])
}
return []byte(setting.SecretKey), nil
return setting.GetGeneralTokenSigningSecret(), nil
})
if err != nil {
return 0, err