You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.3 KiB
80 lines
2.3 KiB
<?php
|
|
|
|
/*
|
|
* This file is part of the Symfony package.
|
|
*
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Symfony\Component\Cache\Marshaller;
|
|
|
|
use Symfony\Component\Cache\Exception\CacheException;
|
|
use Symfony\Component\Cache\Exception\InvalidArgumentException;
|
|
|
|
/**
|
|
* Encrypt/decrypt values using Libsodium.
|
|
*
|
|
* @author Ahmed TAILOULOUTE <ahmed.tailouloute@gmail.com>
|
|
*/
|
|
class SodiumMarshaller implements MarshallerInterface
|
|
{
|
|
private $marshaller;
|
|
private $decryptionKeys;
|
|
|
|
/**
|
|
* @param string[] $decryptionKeys The key at index "0" is required and is used to decrypt and encrypt values;
|
|
* more rotating keys can be provided to decrypt values;
|
|
* each key must be generated using sodium_crypto_box_keypair()
|
|
*/
|
|
public function __construct(array $decryptionKeys, MarshallerInterface $marshaller = null)
|
|
{
|
|
if (!self::isSupported()) {
|
|
throw new CacheException('The "sodium" PHP extension is not loaded.');
|
|
}
|
|
|
|
if (!isset($decryptionKeys[0])) {
|
|
throw new InvalidArgumentException('At least one decryption key must be provided at index "0".');
|
|
}
|
|
|
|
$this->marshaller = $marshaller ?? new DefaultMarshaller();
|
|
$this->decryptionKeys = $decryptionKeys;
|
|
}
|
|
|
|
public static function isSupported(): bool
|
|
{
|
|
return \function_exists('sodium_crypto_box_seal');
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function marshall(array $values, ?array &$failed): array
|
|
{
|
|
$encryptionKey = sodium_crypto_box_publickey($this->decryptionKeys[0]);
|
|
|
|
$encryptedValues = [];
|
|
foreach ($this->marshaller->marshall($values, $failed) as $k => $v) {
|
|
$encryptedValues[$k] = sodium_crypto_box_seal($v, $encryptionKey);
|
|
}
|
|
|
|
return $encryptedValues;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function unmarshall(string $value)
|
|
{
|
|
foreach ($this->decryptionKeys as $k) {
|
|
if (false !== $decryptedValue = @sodium_crypto_box_seal_open($value, $k)) {
|
|
$value = $decryptedValue;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $this->marshaller->unmarshall($value);
|
|
}
|
|
}
|
|
|