182 lines
3.6 KiB
PHP
182 lines
3.6 KiB
PHP
<?php
|
|
/**
|
|
* @package Joomla.Platform
|
|
* @subpackage Archive
|
|
*
|
|
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
|
|
* @license GNU General Public License version 2 or later; see LICENSE
|
|
*/
|
|
|
|
defined('JPATH_PLATFORM') or die;
|
|
|
|
jimport('joomla.filesystem.stream');
|
|
|
|
/**
|
|
* Bzip2 format adapter for the JArchive class
|
|
*
|
|
* @package Joomla.Platform
|
|
* @subpackage Archive
|
|
* @since 11.1
|
|
*/
|
|
class JArchiveBzip2 implements JArchiveExtractable
|
|
{
|
|
/**
|
|
* Bzip2 file data buffer
|
|
*
|
|
* @var string
|
|
* @since 11.1
|
|
*/
|
|
private $_data = null;
|
|
|
|
/**
|
|
* Extract a Bzip2 compressed file to a given path
|
|
*
|
|
* @param string $archive Path to Bzip2 archive to extract
|
|
* @param string $destination Path to extract archive to
|
|
* @param array $options Extraction options [unused]
|
|
*
|
|
* @return boolean True if successful
|
|
*
|
|
* @since 11.1
|
|
* @throws RuntimeException
|
|
*/
|
|
public function extract($archive, $destination, array $options = array ())
|
|
{
|
|
$this->_data = null;
|
|
|
|
if (!extension_loaded('bz2'))
|
|
{
|
|
if (class_exists('JError'))
|
|
{
|
|
return JError::raiseWarning(100, 'The bz2 extension is not available.');
|
|
}
|
|
else
|
|
{
|
|
throw new RuntimeException('The bz2 extension is not available.');
|
|
}
|
|
}
|
|
|
|
if (!isset($options['use_streams']) || $options['use_streams'] == false)
|
|
{
|
|
// Old style: read the whole file and then parse it
|
|
$this->_data = file_get_contents($archive);
|
|
|
|
if (!$this->_data)
|
|
{
|
|
if (class_exists('JError'))
|
|
{
|
|
return JError::raiseWarning(100, 'Unable to read archive');
|
|
}
|
|
else
|
|
{
|
|
throw new RuntimeException('Unable to read archive');
|
|
}
|
|
}
|
|
|
|
$buffer = bzdecompress($this->_data);
|
|
unset($this->_data);
|
|
|
|
if (empty($buffer))
|
|
{
|
|
if (class_exists('JError'))
|
|
{
|
|
return JError::raiseWarning(100, 'Unable to decompress data');
|
|
}
|
|
else
|
|
{
|
|
throw new RuntimeException('Unable to decompress data');
|
|
}
|
|
}
|
|
|
|
if (JFile::write($destination, $buffer) === false)
|
|
{
|
|
if (class_exists('JError'))
|
|
{
|
|
return JError::raiseWarning(100, 'Unable to write archive');
|
|
}
|
|
else
|
|
{
|
|
throw new RuntimeException('Unable to write archive');
|
|
}
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
// New style! streams!
|
|
$input = JFactory::getStream();
|
|
|
|
// Use bzip
|
|
$input->set('processingmethod', 'bz');
|
|
|
|
if (!$input->open($archive))
|
|
{
|
|
if (class_exists('JError'))
|
|
{
|
|
return JError::raiseWarning(100, 'Unable to read archive (bz2)');
|
|
}
|
|
else
|
|
{
|
|
throw new RuntimeException('Unable to read archive (bz2)');
|
|
}
|
|
}
|
|
|
|
$output = JFactory::getStream();
|
|
|
|
if (!$output->open($destination, 'w'))
|
|
{
|
|
$input->close();
|
|
|
|
if (class_exists('JError'))
|
|
{
|
|
return JError::raiseWarning(100, 'Unable to write archive (bz2)');
|
|
}
|
|
else
|
|
{
|
|
throw new RuntimeException('Unable to write archive (bz2)');
|
|
}
|
|
}
|
|
|
|
do
|
|
{
|
|
$this->_data = $input->read($input->get('chunksize', 8196));
|
|
|
|
if ($this->_data)
|
|
{
|
|
if (!$output->write($this->_data))
|
|
{
|
|
$input->close();
|
|
|
|
if (class_exists('JError'))
|
|
{
|
|
return JError::raiseWarning(100, 'Unable to write archive (bz2)');
|
|
}
|
|
else
|
|
{
|
|
throw new RuntimeException('Unable to write archive (bz2)');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while ($this->_data);
|
|
|
|
$output->close();
|
|
$input->close();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Tests whether this adapter can unpack files on this computer.
|
|
*
|
|
* @return boolean True if supported
|
|
*
|
|
* @since 11.3
|
|
*/
|
|
public static function isSupported()
|
|
{
|
|
return extension_loaded('bz2');
|
|
}
|
|
}
|