You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

92 lines
4.0 KiB

<?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.hpk.php //
// module for analyzing HPK files //
// dependencies: NONE //
// ///
/////////////////////////////////////////////////////////////////
if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
exit;
}
class getid3_hpk extends getid3_handler
{
/**
* @return bool
*/
public function Analyze() {
$info = &$this->getid3->info;
$info['fileformat'] = 'hpk';
$this->fseek($info['avdataoffset']);
$HPKheader = $this->fread(36);
if (substr($HPKheader, 0, 4) == 'BPUL') {
$info['hpk']['header']['signature'] = substr($HPKheader, 0, 4);
$info['hpk']['header']['data_offset'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 4, 4));
$info['hpk']['header']['fragments_per_file'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 8, 4));
//$info['hpk']['header']['unknown1'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 12, 4));
$info['hpk']['header']['fragments_residual_offset'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 16, 4));
$info['hpk']['header']['fragments_residual_count'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 20, 4));
//$info['hpk']['header']['unknown2'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 24, 4));
$info['hpk']['header']['fragmented_filesystem_offset'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 28, 4));
$info['hpk']['header']['fragmented_filesystem_length'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 32, 4));
$info['hpk']['header']['filesystem_entries'] = $info['hpk']['header']['fragmented_filesystem_length'] / ($info['hpk']['header']['fragments_per_file'] * 8);
$this->fseek($info['hpk']['header']['fragmented_filesystem_offset']);
for ($i = 0; $i < $info['hpk']['header']['filesystem_entries']; $i++) {
$offset = getid3_lib::LittleEndian2Int($this->fread(4));
$length = getid3_lib::LittleEndian2Int($this->fread(4));
$info['hpk']['filesystem'][$i] = array('offset' => $offset, 'length' => $length);
}
$this->error('HPK parsing incomplete (and mostly broken) in this version of getID3() ['.$this->getid3->version().']');
/*
$filename = '';
$dirs = array();
foreach ($info['hpk']['filesystem'] as $key => $filesystemdata) {
$this->fseek($filesystemdata['offset']);
$first4 = $this->fread(4);
if (($first4 == 'LZ4 ') || ($first4 == 'ZLIB')) {
// actual data, ignore
$info['hpk']['toc'][$key] = array(
'filename' => ltrim(implode('/', $dirs).'/'.$filename, '/'),
'offset' => $filesystemdata['offset'],
'length' => $filesystemdata['length'],
);
$filename = '';
$dirs = array();
} else {
$fragment_index = getid3_lib::LittleEndian2Int($first4);
$fragment_type = getid3_lib::LittleEndian2Int($this->fread(4)); // file = 0, directory = 1
$name_length = getid3_lib::LittleEndian2Int($this->fread(2));
if ($fragment_type == 1) {
$dirs[] = $this->fread($name_length);
} else {
$filename = $this->fread($name_length);
}
}
}
*/
} else {
$this->error('Expecting "BPUL" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes(substr($HPKheader, 0, 4)).'"');
return false;
}
return true;
}
}