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<?php
require_once("databaseconnect.php");
require_once("logger.php");
set_time_limit(0);
$count = $_POST["count"];
if($count <= 0)
{
echo "No hashes.";
exit;
}
$query = "SELECT file,track,artist,album,title,format,sha1 FROM musictags WHERE ";
for($i = 0; $i < $_POST["count"]; $i++)
{
if($i != 0)
{
$query .= " OR ";
}
$query .= "sha1 = ".nullString($_POST["hash".$i]);
}
$query = mysql_query($query);
while($row = mysql_fetch_assoc($query))
{
$rowList[] = $row;
}
@mysql_free_result($query);
if(count($rowList) == 0)
{
exit;
}
logDownload($rowList, true);
if(@eregi("MSIE", $_SERVER['HTTP_USER_AGENT']) || @eregi("Internet Explorer", $_SERVER['HTTP_USER_AGENT']))
{
header("Content-Type: application/octet-stream");
}
else
{
header("Content-Type: application/zip");
}
header('Content-Transfer-Encoding: binary');
header('Content-Disposition: attachment; filename="'.str_replace(" ", "", SITE_NAME)."-Download-".date("Ymd-His").".zip".'"');
$centralDirectory = "";
$offset = 0;
foreach($rowList as $file)
{
if(!file_exists($file["file"]))
continue;
$filename = getPrettyFilename($file);
echo "\x50\x4b\x03\x04"; // local file header signature
echo "\x14\x00"; // version needed to extract
echo "\x00\x00"; // general purpose bit flag
echo "\x00\x00"; // compression method
echo "\x00\x00"; // last mod file time
echo "\x00\x00"; // last mod file date
$crc32 = hash_file('crc32b', $file["file"]);
$crc32 = unpack('N', pack('H*', $crc32));
$crc32 = pack('V', $crc32[1]);
echo $crc32; //crc-32
$size = filesize($file["file"]);
echo pack('V', $size); // compressed size
echo pack('V', $size); // uncompressed size
$filenameLength = strlen($filename);
echo pack('v', $filenameLength);// file name length
echo "\x00\x00"; // extra field length
echo $filename; // file name
readfile($file["file"]); // file data
$centralDirectory .= "\x50\x4b\x01\x02";
$centralDirectory .= "\x00\x00"; // version made by
$centralDirectory .= "\x14\x00"; // version needed to extract
$centralDirectory .= "\x00\x00"; // gen purpose bit flag
$centralDirectory .= "\x00\x00"; // compression method
$centralDirectory .= "\x00\x00"; // last mod file time
$centralDirectory .= "\x00\x00"; // last mod file date
$centralDirectory .= $crc32; // crc-32
$centralDirectory .= pack('V', $size); // compressed filesize
$centralDirectory .= pack('V', $size); // uncompressed filesize
$centralDirectory .= pack('v', $filenameLength);// length of filename
$centralDirectory .= "\x00\x00"; // extra field length
$centralDirectory .= "\x00\x00"; // file comment length
$centralDirectory .= "\x00\x00"; // disk number start
$centralDirectory .= "\x00\x00"; // internal file attributes
$centralDirectory .= "\x20\x00\x00\x00"; // external file attributes - 'archive' bit set (32)
$centralDirectory .= pack('V', $offset); // relative offset of local header
$offset += 30 + $filenameLength + $size;
$centralDirectory .= $filename;
}
echo $centralDirectory; // central directory
echo "\x50\x4b\x05\x06"; // end of central directory signature
echo "\x00\x00"; // number of this disk
echo "\x00\x00"; // number of the disk with the start of the central directory
echo pack('v', sizeof($rowList)); // number of entries on disk
echo pack('v', sizeof($rowList)); // number of entries
echo pack('V', strlen($centralDirectory)); // size of central directory
echo pack('V', $offset); // offset to start of central directory
echo "\x00\x00"; // zip comment size
?>
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