135 lines
3.6 KiB
PHP
135 lines
3.6 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Filter
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: $
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*/
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/**
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* @see Zend_Filter_Interface
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*/
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require_once 'Zend/Filter/Interface.php';
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/**
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* @see Zend_Loader
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*/
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require_once 'Zend/Loader.php';
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/**
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* Encrypts a given string
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*
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* @category Zend
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* @package Zend_Filter
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Filter_Encrypt implements Zend_Filter_Interface
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{
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/**
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* Encryption adapter
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*/
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protected $_adapter;
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/**
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* Class constructor
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*
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* @param string|array $options (Optional) Options to set, if null mcrypt is used
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*/
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public function __construct($options = null)
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{
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$this->setAdapter($options);
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}
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/**
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* Returns the name of the set adapter
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*
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* @return string
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*/
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public function getAdapter()
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{
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return $this->_adapter->toString();
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}
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/**
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* Sets new encryption options
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*
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* @param string|array $options (Optional) Encryption options
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* @return Zend_Filter_Encrypt
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*/
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public function setAdapter($options = null)
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{
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if (is_string($options)) {
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$adapter = $options;
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} else if (isset($options['adapter'])) {
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$adapter = $options['adapter'];
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unset($options['adapter']);
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} else {
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$adapter = 'Mcrypt';
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}
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if (!is_array($options)) {
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$options = array();
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}
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if (Zend_Loader::isReadable('Zend/Filter/Encrypt/' . ucfirst($adapter). '.php')) {
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$adapter = 'Zend_Filter_Encrypt_' . ucfirst($adapter);
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}
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if (!class_exists($adapter)) {
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Zend_Loader::loadClass($adapter);
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}
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$this->_adapter = new $adapter($options);
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if (!$this->_adapter instanceof Zend_Filter_Encrypt_Interface) {
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require_once 'Zend/Filter/Exception.php';
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throw new Zend_Filter_Exception("Encoding adapter '" . $adapter . "' does not implement Zend_Filter_Encrypt_Interface");
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}
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return $this;
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}
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/**
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* Calls adapter methods
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*
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* @param string $method Method to call
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* @param string|array $options Options for this method
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*/
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public function __call($method, $options)
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{
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$part = substr($method, 0, 3);
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if ((($part != 'get') and ($part != 'set')) or !method_exists($this->_adapter, $method)) {
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require_once 'Zend/Filter/Exception.php';
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throw new Zend_Filter_Exception("Unknown method '{$method}'");
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}
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return call_user_func_array(array($this->_adapter, $method), $options);
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}
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/**
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* Defined by Zend_Filter_Interface
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*
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* Encrypts the content $value with the defined settings
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*
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* @param string $value Content to encrypt
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* @return string The encrypted content
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*/
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public function filter($value)
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{
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return $this->_adapter->encrypt($value);
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}
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}
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