141 lines
No EOL
4.7 KiB
PHP
141 lines
No EOL
4.7 KiB
PHP
<?php
|
|
|
|
class zipfile{
|
|
|
|
var $datasec = array();
|
|
var $ctrl_dir = array();
|
|
var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
|
|
|
|
|
|
function zipfile ($output_filename = 'archive.zip'){
|
|
|
|
header('Content-Type: application/x-zip');
|
|
header('Content-Disposition: inline; filename="' . $output_filename . '"');
|
|
header('Expires: 0');
|
|
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
|
|
header('Pragma: public');
|
|
|
|
}
|
|
|
|
function read_File ($file){
|
|
|
|
if (is_file($file)){
|
|
|
|
$fp = fopen ($file, 'rb');
|
|
$content = fread ($fp, filesize($file));
|
|
fclose ($fp);
|
|
|
|
return $content;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function addFileAndRead ($file, $nomefile){
|
|
|
|
if (is_file($file))
|
|
$this -> addFile($this -> read_File($file), $nomefile);
|
|
|
|
}
|
|
|
|
function unix2DosTime($unixtime = 0){
|
|
|
|
$timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);
|
|
|
|
if ($timearray['year'] < 1980){
|
|
|
|
$timearray['year'] = 1980;
|
|
$timearray['mon'] = 1;
|
|
$timearray['mday'] = 1;
|
|
$timearray['hours'] = 0;
|
|
$timearray['minutes'] = 0;
|
|
$timearray['seconds'] = 0;
|
|
|
|
}
|
|
|
|
return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
|
|
($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
|
|
|
|
}
|
|
|
|
function addFile($data, $name, $time = 0){
|
|
|
|
$name = str_replace('\\', '/', $name);
|
|
|
|
$dtime = dechex($this -> unix2DosTime($time));
|
|
$hexdtime = '\x' . $dtime[6] . $dtime[7]
|
|
. '\x' . $dtime[4] . $dtime[5]
|
|
. '\x' . $dtime[2] . $dtime[3]
|
|
. '\x' . $dtime[0] . $dtime[1];
|
|
|
|
eval('$hexdtime = "' . $hexdtime . '";');
|
|
|
|
$fr = "\x50\x4b\x03\x04";
|
|
$fr .= "\x14\x00"; // ver needed to extract
|
|
$fr .= "\x00\x00"; // gen purpose bit flag
|
|
$fr .= "\x08\x00"; // compression method
|
|
$fr .= $hexdtime; // last mod time and date
|
|
|
|
|
|
$unc_len = strlen($data);
|
|
$crc = crc32($data);
|
|
$zdata = gzcompress($data);
|
|
$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug
|
|
$c_len = strlen($zdata);
|
|
$fr .= pack('V', $crc); // crc32
|
|
$fr .= pack('V', $c_len); // compressed filesize
|
|
$fr .= pack('V', $unc_len); // uncompressed filesize
|
|
$fr .= pack('v', strlen($name)); // length of filename
|
|
$fr .= pack('v', 0); // extra field length
|
|
$fr .= $name;
|
|
|
|
$fr .= $zdata;
|
|
|
|
$fr .= pack('V', $crc); // crc32
|
|
$fr .= pack('V', $c_len); // compressed filesize
|
|
$fr .= pack('V', $unc_len); // uncompressed filesize
|
|
|
|
|
|
$this -> datasec[] = $fr;
|
|
$new_offset = strlen(implode('', $this -> datasec));
|
|
|
|
$cdrec = "\x50\x4b\x01\x02";
|
|
$cdrec .= "\x00\x00"; // version made by
|
|
$cdrec .= "\x14\x00"; // version needed to extract
|
|
$cdrec .= "\x00\x00"; // gen purpose bit flag
|
|
$cdrec .= "\x08\x00"; // compression method
|
|
$cdrec .= $hexdtime; // last mod time & date
|
|
$cdrec .= pack('V', $crc); // crc32
|
|
$cdrec .= pack('V', $c_len); // compressed filesize
|
|
$cdrec .= pack('V', $unc_len); // uncompressed filesize
|
|
$cdrec .= pack('v', strlen($name)); // length of filename
|
|
$cdrec .= pack('v', 0); // extra field length
|
|
$cdrec .= pack('v', 0); // file comment length
|
|
$cdrec .= pack('v', 0); // disk number start
|
|
$cdrec .= pack('v', 0); // internal file attributes
|
|
$cdrec .= pack('V', 32); // external file attributes - 'archive' bit set
|
|
|
|
|
|
$cdrec .= pack('V', $this -> old_offset); // relative offset of local header
|
|
$this -> old_offset = $new_offset;
|
|
|
|
$cdrec .= $name;
|
|
|
|
$this -> ctrl_dir[] = $cdrec;
|
|
|
|
}
|
|
|
|
function file(){
|
|
|
|
$data = implode(NULL, $this -> datasec);
|
|
$ctrldir = implode(NULL, $this -> ctrl_dir);
|
|
|
|
return $data .
|
|
$ctrldir .
|
|
$this -> eof_ctrl_dir .
|
|
pack('v', sizeof($this -> ctrl_dir)) . pack('v', sizeof($this -> ctrl_dir)) . pack('V', strlen($ctrldir)) . pack('V', strlen($data)) . "\x00\x00"; // .zip file comment length
|
|
}
|
|
|
|
}
|
|
|
|
?>
|