mirror of
https://github.com/netbirdio/netbird.git
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da7b6b11ad
Extend the deleted user info with the username - Because initially, we did not store the user name in the activity db Sometimes, we can not provide the user name in the API response. Fix service user deletion - In case of service user deletion, do not invoke the IdP delete function - Prevent self deletion
82 lines
1.8 KiB
Go
82 lines
1.8 KiB
Go
package sqlite
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import (
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"bytes"
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"crypto/aes"
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"crypto/cipher"
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"crypto/rand"
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"encoding/base64"
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"fmt"
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)
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var iv = []byte{10, 22, 13, 79, 05, 8, 52, 91, 87, 98, 88, 98, 35, 25, 13, 05}
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type FieldEncrypt struct {
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block cipher.Block
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}
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func GenerateKey() (string, error) {
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key := make([]byte, 32)
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_, err := rand.Read(key)
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if err != nil {
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return "", err
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}
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readableKey := base64.StdEncoding.EncodeToString(key)
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return readableKey, nil
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}
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func NewFieldEncrypt(key string) (*FieldEncrypt, error) {
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binKey, err := base64.StdEncoding.DecodeString(key)
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if err != nil {
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return nil, err
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}
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block, err := aes.NewCipher(binKey)
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if err != nil {
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return nil, err
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}
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ec := &FieldEncrypt{
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block: block,
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}
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return ec, nil
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}
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func (ec *FieldEncrypt) Encrypt(payload string) string {
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plainText := pkcs5Padding([]byte(payload))
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cipherText := make([]byte, len(plainText))
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cbc := cipher.NewCBCEncrypter(ec.block, iv)
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cbc.CryptBlocks(cipherText, plainText)
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return base64.StdEncoding.EncodeToString(cipherText)
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}
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func (ec *FieldEncrypt) Decrypt(data string) (string, error) {
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cipherText, err := base64.StdEncoding.DecodeString(data)
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if err != nil {
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return "", err
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}
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cbc := cipher.NewCBCDecrypter(ec.block, iv)
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cbc.CryptBlocks(cipherText, cipherText)
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payload, err := pkcs5UnPadding(cipherText)
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if err != nil {
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return "", err
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}
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return string(payload), nil
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}
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func pkcs5Padding(ciphertext []byte) []byte {
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padding := aes.BlockSize - len(ciphertext)%aes.BlockSize
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padText := bytes.Repeat([]byte{byte(padding)}, padding)
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return append(ciphertext, padText...)
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}
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func pkcs5UnPadding(src []byte) ([]byte, error) {
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srcLen := len(src)
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paddingLen := int(src[srcLen-1])
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if paddingLen >= srcLen || paddingLen > aes.BlockSize {
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return nil, fmt.Errorf("padding size error")
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}
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return src[:srcLen-paddingLen], nil
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}
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