<?

class zip {

var $datasec, $ctrl_dir = array();

var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";

var $old_offset = 0;

var $dirs = Array(".");

var $chk_zip=true;

function zip() {

if (!function_exists('gzopen')) {

$this->chk_zip=false;

}

}

function get_List($zip_name) {

$zip = @fopen($zip_name, 'rb');

if(!$zip) return(0);

$centd = $this->ReadCentralDir($zip,$zip_name);

@rewind($zip);

@fseek($zip, $centd['offset']);

for ($i=0; $i<$centd['entries']; $i++) {

$header = $this->ReadCentralFileHeaders($zip);

$header['index'] = $i;

$info['filename'] = $header['filename'];

$info['stored_filename'] = $header['stored_filename'];

$info['size'] = $header['size'];

$info['compressed_size']=$header['compressed_size'];

$info['crc'] = strtoupper(dechex( $header['crc'] ));

$info['mtime'] = $header['mtime'];

$info['comment'] = $header['comment'];

$info['folder'] = ($header['external']==0x41FF0010||$header['external']==16)?1:0;

$info['index'] = $header['index'];

$info['status'] = $header['status'];

$ret[]=$info;

unset($header);

}

return $ret;

}

function Add($files,$compact) {

if(!is_array($files[0])) $files=Array($files);

for($i=0;$files[$i];$i++) {

$fn = $files[$i];

if(!in_Array(dirname($fn[0]),$this->dirs))

$this->add_Dir(dirname($fn[0]));

if(basename($fn[0]))

$ret[basename($fn[0])]=$this->add_File($fn[1],$fn[0],$compact);

}

return $ret;

}

function get_file() {

$data = implode('', $this -> datasec);

$ctrldir = implode('', $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";

}

function add_dir($name) {

$name = str_replace("\\", "/", $name);

$fr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00";

$fr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) );

$fr .= pack("v", 0 ).$name.pack("V", 0).pack("V", 0).pack("V", 0);

$this -> datasec[] = $fr;

$new_offset = strlen(implode("", $this->datasec));

$cdrec = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00";

$cdrec .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) );

$cdrec .= pack("v", 0 ).pack("v", 0 ).pack("v", 0 ).pack("v", 0 );

$ext = "\xff\xff\xff\xff";

$cdrec .= pack("V", 16 ).pack("V", $this -> old_offset ).$name;

$this -> ctrl_dir[] = $cdrec;

$this -> old_offset = $new_offset;

$this -> dirs[] = $name;

}

function add_File($data, $name, $compact = 1) {

$name = str_replace('\\', '/', $name);

$dtime = dechex($this->DosTime());

if($data==''&&file_exists($name)&&!is_dir($name)) {

$dfp=fopen($name,"rb");

$data=fread($dfp,filesize($name));

fclose($dfp);

}

$hexdtime = '\x' . $dtime[6] . $dtime[7].'\x'.$dtime[4] . $dtime[5]

. '\x' . $dtime[2] . $dtime[3].'\x'.$dtime[0].$dtime[1];

eval('$hexdtime = "' . $hexdtime . '";');

if($compact)

$fr = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00".$hexdtime;

else $fr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00".$hexdtime;

$unc_len = strlen($data);

$crc = crc32($data);

if($compact) {

$zdata = gzcompress($data);

$c_len = strlen($zdata);

$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);

}else {

$zdata = $data;

}

$c_len=strlen($zdata);

$fr .= pack('V', $crc).pack('V', $c_len).pack('V', $unc_len);

$fr .= pack('v', strlen($name)).pack('v', 0).$name.$zdata;

$fr .= pack('V', $crc).pack('V', $c_len).pack('V', $unc_len);

$this -> datasec[] = $fr;

$new_offset = strlen(implode('', $this->datasec));

if($compact)

$cdrec = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00";

else $cdrec = "\x50\x4b\x01\x02\x14\x00\x0a\x00\x00\x00\x00\x00";

$cdrec .= $hexdtime.pack('V', $crc).pack('V', $c_len).pack('V', $unc_len);

$cdrec .= pack('v', strlen($name) ).pack('v', 0 ).pack('v', 0 );

$cdrec .= pack('v', 0 ).pack('v', 0 ).pack('V', 32 );

$cdrec .= pack('V', $this -> old_offset );

$this -> old_offset = $new_offset;

$cdrec .= $name;

$this -> ctrl_dir[] = $cdrec;

return true;

}

function DosTime() {

$timearray = getdate();

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 Extract ( $zn, $to, $index = Array(-1) ) {

$ok = 0;

$zip = @fopen($zn,'rb');

if(!$zip) return(-1);

$cdir = $this->ReadCentralDir($zip,$zn);

$pos_entry = $cdir['offset'];

if(!is_array($index)) {

$index = array($index);

}

for($i=0; $index[$i];$i++) {

if(intval($index[$i])!=$index[$i]||$index[$i]>$cdir['entries'])

return(-1);

}

for ($i=0; $i<$cdir['entries']; $i++) {

@fseek($zip, $pos_entry);

$header = $this->ReadCentralFileHeaders($zip);

$header['index'] = $i;

$pos_entry = ftell($zip);

@rewind($zip);

fseek($zip, $header['offset']);

if(in_array("-1",$index)||in_array($i,$index))

$stat[$header['filename']]=$this->ExtractFile($header, $to, $zip);

}

fclose($zip);

return $stat;

}

function ReadFileHeader($zip) {

$binary_data = fread($zip, 30);

$data = unpack('vchk/vid/vversion/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len', $binary_data);

$header['filename'] = fread($zip, $data['filename_len']);

if ($data['extra_len'] != 0) {

$header['extra'] = fread($zip, $data['extra_len']);

}

else {

$header['extra'] = '';

}

$header['compression'] = $data['compression'];

$header['size'] = $data['size'];

$header['compressed_size'] = $data['compressed_size'];

$header['crc'] = $data['crc'];

$header['flag'] = $data['flag'];

$header['mdate'] = $data['mdate'];

$header['mtime'] = $data['mtime'];

if ($header['mdate'] && $header['mtime']) {

$hour=($header['mtime']&0xF800)>>11;

$minute=($header['mtime']&0x07E0)>>5;

$seconde=($header['mtime']&0x001F)*2;

$year=(($header['mdate']&0xFE00)>>9)+1980;

$month=($header['mdate']&0x01E0)>>5;

$day=$header['mdate']&0x001F;

$header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);

}

else {

$header['mtime'] = time();

}

$header['stored_filename'] = $header['filename'];

$header['status'] = "ok";

return $header;

}

function ReadCentralFileHeaders($zip) {

$binary_data = fread($zip, 46);

$header = unpack('vchkid/vid/vversion/vversion_extracted/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len/vcomment_len/vdisk/vinternal/Vexternal/Voffset', $binary_data);

if ($header['filename_len'] != 0)

$header['filename'] = fread($zip,$header['filename_len']);

else $header['filename'] = '';

if ($header['extra_len'] != 0)

$header['extra'] = fread($zip, $header['extra_len']);

else $header['extra'] = '';

if ($header['comment_len'] != 0)

$header['comment'] = fread($zip, $header['comment_len']);

else $header['comment'] = '';

if ($header['mdate'] && $header['mtime']) {

$hour = ($header['mtime'] & 0xF800) >> 11;

$minute = ($header['mtime'] & 0x07E0) >> 5;

$seconde = ($header['mtime'] & 0x001F)*2;

$year = (($header['mdate'] & 0xFE00) >> 9) + 1980;

$month = ($header['mdate'] & 0x01E0) >> 5;

$day = $header['mdate'] & 0x001F;

$header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);

}

else {

$header['mtime'] = time();

}

$header['stored_filename'] = $header['filename'];

$header['status'] = 'ok';

if (substr($header['filename'], -1) == '/')

$header['external'] = 0x41FF0010;

return $header;

}

function ReadCentralDir($zip,$zip_name) {

$size = filesize($zip_name);

if ($size < 277) $maximum_size = $size;

else $maximum_size=277;

@fseek($zip, $size-$maximum_size);

$pos = ftell($zip);

$bytes = 0x00000000;

while ($pos < $size) {

$byte = @fread($zip, 1);

$bytes=($bytes << 8) | ord($byte);

if (($bytes & 0xFFFFFFFF) == 0x504b0506) {

$pos++;

break;

} $pos

++;

}

$fdata=fread($zip,18);

$data=@unpack('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size',$fdata);

if ($data['comment_size'] != 0) $centd['comment'] = fread($zip, $data['comment_size']);

else $centd['comment'] = '';

$centd['entries'] = $data['entries'];

$centd['disk_entries'] = $data['disk_entries'];

$centd['offset'] = $data['offset'];

$centd['disk_start'] = $data['disk_start'];

$centd['size'] = $data['size'];

$centd['disk'] = $data['disk'];

return $centd;

}

function ExtractFile($header,$to,$zip) {

$header = $this->readfileheader($zip);

if(substr($to,-1)!="/") $to.="/";

if($to=='./') $to = '';

$pth = explode("/",$to.$header['filename']);

if('/'==substr($to,0,1)) {

$pth[0]="/".$pth[0];

}

$mydir = '';

for($i=0;$i<count($pth)-1;$i++) {

if(!$pth[$i]) continue;

$mydir .= $pth[$i]."/";

if((!is_dir($mydir) && @mkdir($mydir,0777)) || (($mydir==$to.$header['filename'] || ($mydir==$to && $this->total_folders==0)) && is_dir($mydir)) ) {

@chmod($mydir,0777);

}

}

if(strrchr($header['filename'],'/')=='/') return;

if (!($header['external']==0x41FF0010)&&!($header['external']==16)) {

if ($header['compression']==0) {

$fp = @fopen($to.$header['filename'], 'wb');

if(!$fp) return(-1);

$size = $header['compressed_size'];

while ($size != 0) {

$read_size = ($size < 2048 ? $size : 2048);

$buffer = fread($zip, $read_size);

$binary_data = pack('a'.$read_size, $buffer);

@fwrite($fp, $binary_data, $read_size);

$size -= $read_size;

}

fclose($fp);

touch($to.$header['filename'], $header['mtime']);

}

else {

$fp = @fopen($to.$header['filename'].'.gz','wb');

if(!$fp) return(-1);

$binary_data = pack('va1a1Va1a1', 0x8b1f, Chr($header['compression']),

Chr(0x00), time(), Chr(0x00), Chr(3));

fwrite($fp, $binary_data, 10);

$size = $header['compressed_size'];

while ($size != 0) {

$read_size = ($size < 1024 ? $size : 1024);

$buffer = fread($zip, $read_size);

$binary_data = pack('a'.$read_size, $buffer);

@fwrite($fp, $binary_data, $read_size);

$size -= $read_size;

}

$binary_data = pack('VV', $header['crc'], $header['size']);

fwrite($fp, $binary_data,8);

fclose($fp);

$gzp = @gzopen($to.$header['filename'].'.gz','rb');

if(!$gzp)return false;

if(!$gzp) return(-2);

$fp = @fopen($to.$header['filename'],'wb');

if(!$fp) return(-1);

$size = $header['size'];

while ($size != 0) {

$read_size = ($size < 2048 ? $size : 2048);

$buffer = gzread($gzp, $read_size);

$binary_data = pack('a'.$read_size, $buffer);

@fwrite($fp, $binary_data, $read_size);

$size -= $read_size;

}

fclose($fp);

gzclose($gzp);

touch($to.$header['filename'], $header['mtime']);

@unlink($to.$header['filename'].'.gz');

}

}

return true;

}

function zip_dir($dirs, $zipfilename) {

if(is_array($dirs)) {

foreach($dirs as $key=>$dir) {

if(is_dir($dir)) {

$this->dir_Tree($dir);

}

}

}else {

$this->dir_Tree($dirs);

}

$out = $this->get_file();

$fp = fopen($zipfilename, "wb");

fwrite($fp, $out, strlen($out));

fclose($fp);

}

function dir_Tree($directory,$zipdir='') {

$myDir=dir($directory);

while($file=$myDir->read()) {

if($file=="." || $file=="..") {

continue;

}

$pathfile=$directory.'/'.$file;

$zipfile=$zipdir ? $zipdir.'/'.$file : $file;

if(is_dir($pathfile)) {

$this->dir_Tree($pathfile,$zipfile);

}else {

$filecontent = file_get_contents($pathfile);

$this -> add_File($filecontent, $zipfile);

}

}

$myDir->close();

}

}

?>