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gitea/modules/setting/lfs.go
wxiaoguang ed1be4ca68
Handle base64 decoding correctly to avoid panic (#26483)
Fix the panic if the "base64 secret" is too long.
2023-08-14 10:30:16 +00:00

86 lines
2.5 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package setting
import (
"encoding/base64"
"fmt"
"time"
"code.gitea.io/gitea/modules/generate"
"code.gitea.io/gitea/modules/util"
)
// 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"`
Storage *Storage
}{}
func loadLFSFrom(rootCfg ConfigProvider) error {
sec := rootCfg.Section("server")
if err := sec.MapTo(&LFS); err != nil {
return fmt.Errorf("failed to map LFS settings: %v", err)
}
lfsSec, _ := rootCfg.GetSection("lfs")
// Specifically default PATH to LFS_CONTENT_PATH
// DEPRECATED should not be removed because users maybe upgrade from lower version to the latest version
// if these are removed, the warning will not be shown
deprecatedSetting(rootCfg, "server", "LFS_CONTENT_PATH", "lfs", "PATH", "v1.19.0")
if val := sec.Key("LFS_CONTENT_PATH").String(); val != "" {
if lfsSec == nil {
lfsSec = rootCfg.Section("lfs")
}
lfsSec.Key("PATH").MustString(val)
}
var err error
LFS.Storage, err = getStorage(rootCfg, "lfs", "", lfsSec)
if err != nil {
return err
}
// Rest of LFS service settings
if LFS.LocksPagingNum == 0 {
LFS.LocksPagingNum = 50
}
LFS.HTTPAuthExpiry = sec.Key("LFS_HTTP_AUTH_EXPIRY").MustDuration(24 * time.Hour)
if !LFS.StartServer || !InstallLock {
return nil
}
LFS.JWTSecretBase64 = loadSecret(rootCfg.Section("server"), "LFS_JWT_SECRET_URI", "LFS_JWT_SECRET")
LFS.JWTSecretBytes, err = util.Base64FixedDecode(base64.RawURLEncoding, []byte(LFS.JWTSecretBase64), 32)
if err != nil {
LFS.JWTSecretBytes, LFS.JWTSecretBase64, err = generate.NewJwtSecretBase64()
if err != nil {
return fmt.Errorf("error generating JWT Secret for custom config: %v", err)
}
// Save secret
saveCfg, err := rootCfg.PrepareSaving()
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)
if err := saveCfg.Save(); err != nil {
return fmt.Errorf("error saving JWT Secret for custom config: %v", err)
}
}
return nil
}