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Initial commit - Typo3 11.5.41

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Matteo Gallo
2026-07-03 17:53:31 +02:00
commit 5ca4743197
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91
typo3conf/ext/sr_freecap/Classes/Utility/EncryptionUtility.php Normal file
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<?php
namespace SJBR\SrFreecap\Utility;
/*
* Copyright notice
*
* (c) 2012-2022 Stanislas Rolland <typo3AAAA(arobas)sjbr.ca>
* All rights reserved
*
* This script is part of the TYPO3 project. The TYPO3 project 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 2 of the License, or
* (at your option) any later version.
*
* The GNU General Public License can be found at
* http://www.gnu.org/copyleft/gpl.html.
* A copy is found in the textfile GPL.txt and important notices to the license
* from the author is found in LICENSE.txt distributed with these scripts.
*
*
* This script 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.
*
* This copyright notice MUST APPEAR in all copies of the script!
*/
class EncryptionUtility
{
/**
* Salt
*/
const SALT = 'cH!swe!retReGu7W6bEDRup7usuDUh9THeD2CHeGE*ewr4n39=E@rAsp7c-Ph@pH';
/**
* Encrypts a string
*
* @param array $string: the string to be encrypted
* @return array an array with the string as the first element and the initialization vector as the second element
*/
public static function encrypt($string)
{
if (in_array('openssl', get_loaded_extensions())) {
$encryptionAlgorithm = strtolower($GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['sr_freecap']['encryptionAlgorithm'] ?? 'aes-256-cbc');
$availableAlgorithms = openssl_get_cipher_methods(true);
if (in_array($encryptionAlgorithm, $availableAlgorithms)) {
$key = md5($GLOBALS['TYPO3_CONF_VARS']['SYS']['encryptionKey'] ?? 0, true);
$iv_size = openssl_cipher_iv_length($encryptionAlgorithm);
$salt = (isset($GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['sr_freecap']['salt']) && trim($GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['sr_freecap']['salt'])) ? trim($GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['sr_freecap']['salt']) : self::SALT;
$hash = hash('sha256', $salt . $key . $salt);
$iv = substr($hash, strlen($hash) - $iv_size);
$key = substr($hash, 0, 32);
$string = openssl_encrypt($string, $encryptionAlgorithm, $key, OPENSSL_RAW_DATA, $iv);
$cypher = [base64_encode($string), base64_encode($iv)];
} else {
$cypher = [base64_encode($string)];
}
} else {
$cypher = [base64_encode($string)];
}
return $cypher;
}
/**
* Decrypts a string
*
* @param array $cypher: an array as returned by encrypt()
* @return string the decrypted string
*/
public static function decrypt($cypher)
{
if (in_array('openssl', get_loaded_extensions())) {
$encryptionAlgorithm = strtolower($GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['sr_freecap']['encryptionAlgorithm'] ?? 'aes-256-cbc');
$availableAlgorithms = openssl_get_cipher_methods(true);
if (in_array($encryptionAlgorithm, $availableAlgorithms)) {
$key = md5($GLOBALS['TYPO3_CONF_VARS']['SYS']['encryptionKey'] ?? 0, true);
$salt = isset($GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['sr_freecap']['salt']) ? trim($GLOBALS['TYPO3_CONF_VARS']['EXTENSIONS']['sr_freecap']['salt']) : self::SALT;
$hash = hash('sha256', $salt . $key . $salt);
$key = substr($hash, 0, 32);
$string = trim(openssl_decrypt(base64_decode($cypher[0]), $encryptionAlgorithm, $key, OPENSSL_RAW_DATA, base64_decode($cypher[1])));
} else {
$string = base64_decode($cypher[0]);
}
} else {
$string = base64_decode($cypher[0]);
}
return $string;
}
}