<?php
/**
* @version $Id: archive.php 20228 2011-01-10 00:52:54Z eddieajau $
* @package Joomla.Framework
* @subpackage FileSystem
* @copyright Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
// No direct access
defined('JPATH_BASE') or die();
/**
* An Archive handling class
*
* @static
* @package Joomla.Framework
* @subpackage FileSystem
* @since 1.5
*/
class JArchive
{
/**
* @param string $archivename The name of the archive file
* @param string $extractdir Directory to unpack into
*
* @return boolean True for success
* @since 1.5
*/
public static function extract($archivename, $extractdir)
{
jimport('joomla.filesystem.file');
jimport('joomla.filesystem.folder');
$untar = false;
$result = false;
$ext = JFile::getExt(strtolower($archivename));
// check if a tar is embedded...gzip/bzip2 can just be plain files!
if (JFile::getExt(JFile::stripExt(strtolower($archivename))) == 'tar') {
$untar = true;
}
switch ($ext)
{
case 'zip':
$adapter = JArchive::getAdapter('zip');
if ($adapter) {
$result = $adapter->extract($archivename, $extractdir);
}
break;
case 'tar':
$adapter = JArchive::getAdapter('tar');
if ($adapter) {
$result = $adapter->extract($archivename, $extractdir);
}
break;
case 'tgz':
$untar = true; // This format is a tarball gzip'd
case 'gz': // This may just be an individual file (e.g. sql script)
case 'gzip':
$adapter = JArchive::getAdapter('gzip');
if ($adapter) {
$config = JFactory::getConfig();
$tmpfname = $config->get('tmp_path').DS.uniqid('gzip');
$gzresult = $adapter->extract($archivename, $tmpfname);
if (JError::isError($gzresult)) {
@unlink($tmpfname);
return false;
}
if ($untar) {
// Try to untar the file
$tadapter = JArchive::getAdapter('tar');
if ($tadapter) {
$result = $tadapter->extract($tmpfname, $extractdir);
}
}
else {
$path = JPath::clean($extractdir);
JFolder::create($path);
$result = JFile::copy($tmpfname,$path.DS.JFile::stripExt(JFile::getName(strtolower($archivename))),null,1);
}
@unlink($tmpfname);
}
break;
case 'tbz2' :
$untar = true; // This format is a tarball bzip2'd
case 'bz2' : // This may just be an individual file (e.g. sql script)
case 'bzip2':
$adapter = JArchive::getAdapter('bzip2');
if ($adapter) {
$config = JFactory::getConfig();
$tmpfname = $config->get('tmp_path').DS.uniqid('bzip2');
$bzresult = $adapter->extract($archivename, $tmpfname);
if (JError::isError($bzresult)) {
@unlink($tmpfname);
return false;
}
if ($untar) {
// Try to untar the file
$tadapter = JArchive::getAdapter('tar');
if ($tadapter) {
$result = $tadapter->extract($tmpfname, $extractdir);
}
}
else {
$path = JPath::clean($extractdir);
JFolder::create($path);
$result = JFile::copy($tmpfname,$path.DS.JFile::stripExt(JFile::getName(strtolower($archivename))),null,1);
}
@unlink($tmpfname);
}
break;
default:
JError::raiseWarning(10, JText::_('JLIB_FILESYSTEM_UNKNOWNARCHIVETYPE'));
return false;
break;
}
if (! $result || JError::isError($result)) {
return false;
}
return true;
}
/**
* @param string $type
*
* @return JObject
* @since 1.5
*/
public static function getAdapter($type)
{
static $adapters;
if (!isset($adapters)) {
$adapters = array();
}
if (!isset($adapters[$type])) {
// Try to load the adapter object
$class = 'JArchive'.ucfirst($type);
if (!class_exists($class)) {
$path = dirname(__FILE__).DS.'archive'.DS.strtolower($type).'.php';
if (file_exists($path)) {
require_once $path;
}
else {
JError::raiseError(500,JText::_('JLIB_FILESYSTEM_UNABLE_TO_LOAD_ARCHIVE'));
}
}
$adapters[$type] = new $class();
}
return $adapters[$type];
}
}