85 lines
2 KiB
Go
85 lines
2 KiB
Go
|
// Copyright 2022 The Gitea Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a MIT-style
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
package util
|
||
|
|
|
||
|
|
import (
|
||
|
|
"crypto/aes"
|
||
|
|
"crypto/cipher"
|
||
|
|
"crypto/rand"
|
||
|
|
"errors"
|
||
|
|
|
||
|
|
"github.com/unknwon/com" //nolint:depguard
|
||
|
|
)
|
||
|
|
|
||
|
|
// CopyFile copies file from source to target path.
|
||
|
|
func CopyFile(src, dest string) error {
|
||
|
|
return com.Copy(src, dest)
|
||
|
|
}
|
||
|
|
|
||
|
|
// CopyDir copy files recursively from source to target directory.
|
||
|
|
// It returns error when error occurs in underlying functions.
|
||
|
|
func CopyDir(srcPath, destPath string) error {
|
||
|
|
return com.CopyDir(srcPath, destPath)
|
||
|
|
}
|
||
|
|
|
||
|
|
// ToStr converts any interface to string. should be replaced.
|
||
|
|
func ToStr(value interface{}, args ...int) string {
|
||
|
|
return com.ToStr(value, args...)
|
||
|
|
}
|
||
|
|
|
||
|
|
// ToSnakeCase converts a string to snake_case. should be replaced.
|
||
|
|
func ToSnakeCase(str string) string {
|
||
|
|
return com.ToSnakeCase(str)
|
||
|
|
}
|
||
|
|
|
||
|
|
// AESGCMEncrypt (from legacy package): encrypts plaintext with the given key using AES in GCM mode. should be replaced.
|
||
|
|
func AESGCMEncrypt(key, plaintext []byte) ([]byte, error) {
|
||
|
|
block, err := aes.NewCipher(key)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
gcm, err := cipher.NewGCM(block)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
nonce := make([]byte, gcm.NonceSize())
|
||
|
|
if _, err := rand.Read(nonce); err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
ciphertext := gcm.Seal(nil, nonce, plaintext, nil)
|
||
|
|
return append(nonce, ciphertext...), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// AESGCMDecrypt (from legacy package): decrypts ciphertext with the given key using AES in GCM mode. should be replaced.
|
||
|
|
func AESGCMDecrypt(key, ciphertext []byte) ([]byte, error) {
|
||
|
|
block, err := aes.NewCipher(key)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
gcm, err := cipher.NewGCM(block)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
size := gcm.NonceSize()
|
||
|
|
if len(ciphertext)-size <= 0 {
|
||
|
|
return nil, errors.New("ciphertext is empty")
|
||
|
|
}
|
||
|
|
|
||
|
|
nonce := ciphertext[:size]
|
||
|
|
ciphertext = ciphertext[size:]
|
||
|
|
|
||
|
|
plainText, err := gcm.Open(nil, nonce, ciphertext, nil)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return plainText, nil
|
||
|
|
}
|