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124 lines
3.2 KiB
124 lines
3.2 KiB
<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2014-2017 British Columbia Institute of Technology
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* Copyright (c) 2019 CodeIgniter Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author CodeIgniter Dev Team
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* @copyright 2014-2017 British Columbia Institute of Technology (https://bcit.ca/)
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* @license https://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 4.0.0
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* @filesource
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*/
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namespace CodeIgniter\Encryption\Handlers;
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use CodeIgniter\Config\BaseConfig;
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/**
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* Base class for encryption handling
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*/
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abstract class BaseHandler implements \CodeIgniter\Encryption\EncrypterInterface
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{
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/**
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* Configuraiton passed from encryption manager
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*
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* @var string
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*/
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protected $config;
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/**
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* Logger instance to record error messages and warnings.
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*
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* @var \PSR\Log\LoggerInterface
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*/
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protected $logger;
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//--------------------------------------------------------------------
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/**
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* Constructor
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*
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* @param BaseConfig $config
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*/
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public function __construct(BaseConfig $config = null)
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{
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if (empty($config))
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{
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$config = new \Config\Encryption();
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}
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// make the parameters conveniently accessible
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foreach ($config as $pkey => $value)
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{
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$this->$pkey = $value;
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}
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}
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/**
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* Byte-safe substr()
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*
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* @param string $str
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* @param integer $start
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* @param integer $length
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* @return string
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*/
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protected static function substr($str, $start, $length = null)
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{
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return mb_substr($str, $start, $length, '8bit');
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}
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/**
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* __get() magic, providing readonly access to some of our properties
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*
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* @param string $key Property name
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* @return mixed
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*/
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public function __get($key)
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{
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if (in_array($key, ['cipher', 'key'], true))
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{
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return $this->{$key};
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}
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return null;
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}
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/**
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* __isset() magic, providing checking for some of our properties
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*
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* @param string $key Property name
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* @return boolean
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*/
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public function __isset($key): bool
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{
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return in_array($key, ['cipher', 'key'], true);
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}
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}
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