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<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org> //
// available at https://github.com/JamesHeinrich/getID3 //
// or https://www.getid3.org //
// or http://getid3.sourceforge.net //
// see readme.txt for more details //
/////////////////////////////////////////////////////////////////
// //
// module.archive.xz.php //
// module for analyzing XZ files //
// dependencies: NONE //
// ///
/////////////////////////////////////////////////////////////////
if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
exit;
}
class getid3_xz extends getid3_handler
{
/**
* @return bool
*/
public function Analyze() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset']);
$xzheader = $this->fread(6);
// https://tukaani.org/xz/xz-file-format-1.0.4.txt
$info['xz']['stream_header']['magic'] = substr($xzheader, 0, 6);
if ($info['xz']['stream_header']['magic'] != "\xFD".'7zXZ'."\x00") {
$this->error('Invalid XZ stream header magic (expecting FD 37 7A 58 5A 00, found '.getid3_lib::PrintHexBytes($info['xz']['stream_header']['magic']).') at offset '.$info['avdataoffset']);
return false;
}
$info['fileformat'] = 'xz';
$this->error('XZ parsing not enabled in this version of getID3() ['.$this->getid3->version().']');
return false;
}
}
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