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<?php
/**
* Bitrix Framework
* @package bitrix
* @subpackage main
* @copyright 2001-2018 Bitrix
*/
namespace Bitrix\Main\ORM\Fields;
use Bitrix\Main\Security;
class SecretField extends CryptoField
{
protected $secretLength = 20;
/**
* SecretField constructor.
* @param string $name
* @param array $parameters Can contain 'secret_length'.
*/
public function __construct($name, $parameters = [])
{
//the order of modifiers is important
$this->addSaveDataModifier([$this, 'encode']);
parent::__construct($name, $parameters);
$this->addFetchDataModifier([$this, 'decode']);
if(isset($parameters['secret_length']))
{
$this->configureSecretLength($parameters['secret_length']);
}
$this->configureDefaultValue([$this, 'getRandomBytes']);
}
/**
* @param int $length The length of the secret
*/
public function configureSecretLength($length)
{
if($length > 0)
{
$this->secretLength = (int)$length;
}
}
/**
* Encodes binary data before save into DB.
* @param string $data
* @return string
*/
public function encode($data)
{
return base64_encode($data);
}
/**
* Decodes into binary data from DB.
* @param $data
* @return false|string
*/
public function decode($data)
{
return base64_decode($data);
}
/**
* @return string
*/
public function getRandomBytes()
{
return Security\Random::getBytes($this->secretLength);
}
}