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<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Unzip;
use Exception;
/**
* Unzip wrapper around ZipArchive
*
*/
class ZipArchive implements UncompressInterface
{
/**
* @var \ZipArchive
*/
private $ziparchive;
/**
* @var string
*/
public $filename;
/**
* Constructor
*
* @param string $filename Name of the .zip archive
* @throws Exception
*/
public function __construct($filename)
{
$this->filename = $filename;
$this->ziparchive = new \ZipArchive;
if ($this->ziparchive->open($filename) !== true) {
throw new Exception('Error opening ' . $filename);
}
}
/**
* Extract files from archive to target directory
*
* @param string $pathExtracted Absolute path of target directory
* @return mixed Array of filenames if successful; or 0 if an error occurred
*/
public function extract($pathExtracted)
{
if (substr($pathExtracted, -1) !== '/') {
$pathExtracted .= '/';
}
$fileselector = array();
$list = array();
$count = $this->ziparchive->numFiles;
if ($count === 0) {
return 0;
}
for ($i = 0; $i < $count; $i++) {
$entry = $this->ziparchive->statIndex($i);
$filename = str_replace('\\', '/', $entry['name']);
$parts = explode('/', $filename);
if (!strncmp($filename, '/', 1) ||
array_search('..', $parts) !== false ||
strpos($filename, ':') !== false
) {
return 0;
}
$fileselector[] = $entry['name'];
$list[] = array(
'filename' => $pathExtracted . $entry['name'],
'stored_filename' => $entry['name'],
'size' => $entry['size'],
'compressed_size' => $entry['comp_size'],
'mtime' => $entry['mtime'],
'index' => $i,
'crc' => $entry['crc'],
);
}
$res = $this->ziparchive->extractTo($pathExtracted, $fileselector);
if ($res === false)
return 0;
return $list;
}
/**
* Get error status string for the latest error
*
* @return string
*/
public function errorInfo()
{
static $statusStrings = array(
\ZIPARCHIVE::ER_OK => 'No error',
\ZIPARCHIVE::ER_MULTIDISK => 'Multi-disk zip archives not supported',
\ZIPARCHIVE::ER_RENAME => 'Renaming temporary file failed',
\ZIPARCHIVE::ER_CLOSE => 'Closing zip archive failed',
\ZIPARCHIVE::ER_SEEK => 'Seek error',
\ZIPARCHIVE::ER_READ => 'Read error',
\ZIPARCHIVE::ER_WRITE => 'Write error',
\ZIPARCHIVE::ER_CRC => 'CRC error',
\ZIPARCHIVE::ER_ZIPCLOSED => 'Containing zip archive was closed',
\ZIPARCHIVE::ER_NOENT => 'No such file',
\ZIPARCHIVE::ER_EXISTS => 'File already exists',
\ZIPARCHIVE::ER_OPEN => 'Can\'t open file',
\ZIPARCHIVE::ER_TMPOPEN => 'Failure to create temporary file',
\ZIPARCHIVE::ER_ZLIB => 'Zlib error',
\ZIPARCHIVE::ER_MEMORY => 'Malloc failure',
\ZIPARCHIVE::ER_CHANGED => 'Entry has been changed',
\ZIPARCHIVE::ER_COMPNOTSUPP => 'Compression method not supported',
\ZIPARCHIVE::ER_EOF => 'Premature EOF',
\ZIPARCHIVE::ER_INVAL => 'Invalid argument',
\ZIPARCHIVE::ER_NOZIP => 'Not a zip archive',
\ZIPARCHIVE::ER_INTERNAL => 'Internal error',
\ZIPARCHIVE::ER_INCONS => 'Zip archive inconsistent',
\ZIPARCHIVE::ER_REMOVE => 'Can\'t remove file',
\ZIPARCHIVE::ER_DELETED => 'Entry has been deleted',
);
if (isset($statusStrings[$this->ziparchive->status])) {
$statusString = $statusStrings[$this->ziparchive->status];
} else {
$statusString = 'Unknown status';
}
return $statusString . '(' . $this->ziparchive->status . ')';
}
}
|
