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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_Compress_CompressAbstract
*/
/**
* Compression adapter for Tar
*
* @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_Compress_Tar extends Zend_Filter_Compress_CompressAbstract
{
/**
* Compression Options
* array(
* 'archive' => Archive to use
* 'target' => Target to write the files to
* )
*
* @var array
*/
protected $_options = array(
'archive' => null,
'target' => '.',
'mode' => null,
);
/**
* Class constructor
*
* @param array $options (Optional) Options to set
*/
public function __construct($options = null)
{
if (!class_exists('Archive_Tar')) {
try {
Zend_Loader::loadClass('Archive_Tar');
} catch (Zend_Exception $e) {
throw new Zend_Filter_Exception('This filter needs PEARs Archive_Tar', 0, $e);
}
}
parent::__construct($options);
}
/**
* Returns the set archive
*
* @return string
*/
public function getArchive()
{
return $this->_options['archive'];
}
/**
* Sets the archive to use for de-/compression
*
* @param string $archive Archive to use
* @return Zend_Filter_Compress_Tar
*/
public function setArchive($archive)
{
$archive = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $archive);
$this->_options['archive'] = (string) $archive;
return $this;
}
/**
* Returns the set targetpath
*
* @return string
*/
public function getTarget()
{
return $this->_options['target'];
}
/**
* Sets the targetpath to use
*
* @param string $target
* @return Zend_Filter_Compress_Tar
*/
public function setTarget($target)
{
if (!file_exists(dirname($target))) {
throw new Zend_Filter_Exception("The directory '$target' does not exist");
}
$target = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $target);
$this->_options['target'] = (string) $target;
return $this;
}
/**
* Returns the set compression mode
*/
public function getMode()
{
return $this->_options['mode'];
}
/**
* Compression mode to use
* Eighter Gz or Bz2
*
* @param string $mode
*/
public function setMode($mode)
{
$mode = ucfirst(strtolower($mode));
if (($mode != 'Bz2') && ($mode != 'Gz')) {
throw new Zend_Filter_Exception("The mode '$mode' is unknown");
}
if (($mode == 'Bz2') && (!extension_loaded('bz2'))) {
throw new Zend_Filter_Exception('This mode needs the bz2 extension');
}
if (($mode == 'Gz') && (!extension_loaded('zlib'))) {
throw new Zend_Filter_Exception('This mode needs the zlib extension');
}
}
/**
* Compresses the given content
*
* @param string $content
* @return string
*/
public function compress($content)
{
$archive = new Archive_Tar($this->getArchive(), $this->getMode());
if (!file_exists($content)) {
$file = $this->getTarget();
if (is_dir($file)) {
$file .= DIRECTORY_SEPARATOR . "tar.tmp";
}
$result = file_put_contents($file, $content);
if ($result === false) {
throw new Zend_Filter_Exception('Error creating the temporary file');
}
$content = $file;
}
if (is_dir($content)) {
// collect all file infos
foreach (new RecursiveIteratorIterator(
new RecursiveDirectoryIterator($content, RecursiveDirectoryIterator::KEY_AS_PATHNAME),
RecursiveIteratorIterator::SELF_FIRST
) as $directory => $info
) {
if ($info->isFile()) {
$file[] = $directory;
}
}
$content = $file;
}
$result = $archive->create($content);
if ($result === false) {
throw new Zend_Filter_Exception('Error creating the Tar archive');
}
return $this->getArchive();
}
/**
* Decompresses the given content
*
* @param string $content
* @return boolean
*/
public function decompress($content)
{
$archive = $this->getArchive();
if (file_exists($content)) {
$archive = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, realpath($content));
} elseif (empty($archive) || !file_exists($archive)) {
throw new Zend_Filter_Exception('Tar Archive not found');
}
$archive = new Archive_Tar($archive, $this->getMode());
$target = $this->getTarget();
if (!is_dir($target)) {
$target = dirname($target);
}
$result = $archive->extract($target);
if ($result === false) {
throw new Zend_Filter_Exception('Error while extracting the Tar archive');
}
return true;
}
/**
* Returns the adapter name
*
* @return string
*/
public function toString()
{
return 'Tar';
}
}
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