77 lines
1.7 KiB
PHP
77 lines
1.7 KiB
PHP
<?php
|
|
|
|
/**
|
|
* This file is part of CodeIgniter 4 framework.
|
|
*
|
|
* (c) CodeIgniter Foundation <admin@codeigniter.com>
|
|
*
|
|
* For the full copyright and license information, please view
|
|
* the LICENSE file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace CodeIgniter\Encryption\Handlers;
|
|
|
|
use CodeIgniter\Encryption\EncrypterInterface;
|
|
use Config\Encryption;
|
|
|
|
/**
|
|
* Base class for encryption handling
|
|
*/
|
|
abstract class BaseHandler implements EncrypterInterface
|
|
{
|
|
/**
|
|
* Constructor
|
|
*/
|
|
public function __construct(?Encryption $config = null)
|
|
{
|
|
$config ??= config(Encryption::class);
|
|
|
|
// make the parameters conveniently accessible
|
|
foreach (get_object_vars($config) as $key => $value) {
|
|
if (property_exists($this, $key)) {
|
|
$this->{$key} = $value;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Byte-safe substr()
|
|
*
|
|
* @param string $str
|
|
* @param int $start
|
|
* @param int $length
|
|
*
|
|
* @return string
|
|
*/
|
|
protected static function substr($str, $start, $length = null)
|
|
{
|
|
return mb_substr($str, $start, $length, '8bit');
|
|
}
|
|
|
|
/**
|
|
* __get() magic, providing readonly access to some of our properties
|
|
*
|
|
* @param string $key Property name
|
|
*
|
|
* @return array|bool|int|string|null
|
|
*/
|
|
public function __get($key)
|
|
{
|
|
if ($this->__isset($key)) {
|
|
return $this->{$key};
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* __isset() magic, providing checking for some of our properties
|
|
*
|
|
* @param string $key Property name
|
|
*/
|
|
public function __isset($key): bool
|
|
{
|
|
return property_exists($this, $key);
|
|
}
|
|
}
|