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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Filter
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/**
* @see Zend_Filter_Encrypt
*/
/**
* Encrypts a given file and stores the encrypted file content
*
* @category Zend
* @package Zend_Filter
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Filter_File_Encrypt extends Zend_Filter_Encrypt
{
/**
* New filename to set
*
* @var string
*/
protected $_filename;
/**
* Returns the new filename where the content will be stored
*
* @return string
*/
public function getFilename()
{
return $this->_filename;
}
/**
* Sets the new filename where the content will be stored
*
* @param string $filename (Optional) New filename to set
* @return Zend_Filter_File_Encryt
*/
public function setFilename($filename = null)
{
$this->_filename = $filename;
return $this;
}
/**
* Defined by Zend_Filter_Interface
*
* Encrypts the file $value with the defined settings
*
* @param string $value Full path of file to change
* @return string The filename which has been set, or false when there were errors
*/
public function filter($value)
{
if (!file_exists($value)) {
throw new Zend_Filter_Exception("File '$value' not found");
}
if (!isset($this->_filename)) {
$this->_filename = $value;
}
if (file_exists($this->_filename) and !is_writable($this->_filename)) {
throw new Zend_Filter_Exception("File '{$this->_filename}' is not writable");
}
$content = file_get_contents($value);
if (!$content) {
throw new Zend_Filter_Exception("Problem while reading file '$value'");
}
$encrypted = parent::filter($content);
$result = file_put_contents($this->_filename, $encrypted);
if (!$result) {
throw new Zend_Filter_Exception("Problem while writing file '{$this->_filename}'");
}
return $this->_filename;
}
}
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