mirror of
https://github.com/espocrm/espocrm.git
synced 2026-06-28 15:06:06 +00:00
104 lines
3.5 KiB
PHP
104 lines
3.5 KiB
PHP
<?php
|
|
/************************************************************************
|
|
* This file is part of EspoCRM.
|
|
*
|
|
* EspoCRM - Open Source CRM application.
|
|
* Copyright (C) 2014-2018 Yuri Kuznetsov, Taras Machyshyn, Oleksiy Avramenko
|
|
* Website: http://www.espocrm.com
|
|
*
|
|
* EspoCRM is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* EspoCRM is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with EspoCRM. If not, see http://www.gnu.org/licenses/.
|
|
*
|
|
* The interactive user interfaces in modified source and object code versions
|
|
* of this program must display Appropriate Legal Notices, as required under
|
|
* Section 5 of the GNU General Public License version 3.
|
|
*
|
|
* In accordance with Section 7(b) of the GNU General Public License version 3,
|
|
* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
|
|
************************************************************************/
|
|
|
|
namespace Espo\Core\Utils;
|
|
|
|
class Crypt
|
|
{
|
|
private $config;
|
|
|
|
private $key = null;
|
|
|
|
private $cryptKey = null;
|
|
|
|
private $iv = null;
|
|
|
|
public function __construct($config)
|
|
{
|
|
$this->config = $config;
|
|
$this->cryptKey = $config->get('cryptKey', '');
|
|
}
|
|
|
|
protected function getKey()
|
|
{
|
|
if (empty($this->key)) {
|
|
$this->key = hash('sha256', $this->cryptKey, true);
|
|
}
|
|
return $this->key;
|
|
}
|
|
|
|
protected function getIv()
|
|
{
|
|
if (empty($this->iv)) {
|
|
if (extension_loaded('openssl')) {
|
|
$this->iv = openssl_random_pseudo_bytes(16);
|
|
} else {
|
|
$this->iv = mcrypt_create_iv(16, MCRYPT_RAND);
|
|
}
|
|
}
|
|
return $this->iv;
|
|
}
|
|
|
|
public function encrypt($string)
|
|
{
|
|
$iv = $this->getIv();
|
|
if (extension_loaded('openssl')) {
|
|
return base64_encode(openssl_encrypt($string, 'aes-256-cbc', $this->getKey(), OPENSSL_RAW_DATA , $iv) . $iv);
|
|
} else {
|
|
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, 'cbc');
|
|
$pad = $block - (strlen($string) % $block);
|
|
$string .= str_repeat(chr($pad), $pad);
|
|
return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $this->getKey(), $string, MCRYPT_MODE_CBC, $iv) . $iv);
|
|
}
|
|
}
|
|
|
|
public function decrypt($encryptedString)
|
|
{
|
|
$encryptedString = base64_decode($encryptedString);
|
|
$string = substr($encryptedString, 0, strlen($encryptedString) - 16);
|
|
$iv = substr($encryptedString, -16);
|
|
|
|
if (extension_loaded('openssl')) {
|
|
return trim(openssl_decrypt($string, 'aes-256-cbc', $this->getKey(), OPENSSL_RAW_DATA, $iv));
|
|
} else {
|
|
$string = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $this->getKey(), $string, MCRYPT_MODE_CBC, $iv);
|
|
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, 'cbc');
|
|
$len = strlen($string);
|
|
$pad = ord($string[$len - 1]);
|
|
return substr($string, 0, strlen($string) - $pad);
|
|
}
|
|
}
|
|
|
|
public function generateKey()
|
|
{
|
|
return md5(uniqid());
|
|
}
|
|
}
|
|
|