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PHP package website online compression into zip

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Jul 23, 2016 am 08:54 AM

?//在URL后参加 ?pwd=密码查看生成密码
$password = '8baa717e6265d1c1d762cc896151f821'; //l23
?>
php ZIP压缩程序
在线压缩ZIP文件程序

使用方法:选定要压缩的文件或目录（包含子目录），即可开始压缩。压缩的结果保留原来的目录结构。

echo '当前目录：'. dirname(__FILE__) . ' 退出';

else

if(isset($_GET['pwd']) )

echo '密码值：'. md5($_GET['pwd']) . '';

else

echo 'Tips:在URL后参加?pwd=密码查看生成密码.';

?>

if(!isset($_REQUEST["myaction"])):

验证密码:

elseif($_REQUEST["myaction"]=="dolist"):

if(!isset($_REQUEST['pwd']) || empty($_REQUEST['pwd']) )

die('请输入密码! Again');

if(md5($_REQUEST['pwd']) != $password)

die('输入的密码不正确！Again');

echo 'Select the directories to be excluded (relative paths, separated by commas):
';

echo '
';

echo "Select the file to be compressed Or directory:
";

$fdir = opendir('./');

while($file=readdir($fdir)){

if($file=='.'|| $file =='..' ) continue;

echo " ";

if(is_file($file)){

echo "File: $file
";

}else{

echo " Directory: $file
";

}

Save the compressed file to the directory:

(leave blank for this directory, must have write permission )

Compressed file name:

(.zip)

elseif($_REQUEST["myaction"]=="dozip" ):

// set_time_limit(0);

class PHPzip{

var $file_count = 0;

var $datastr_len = 0;

var $dirstr_len = 0;

var $filedata = ''; //This variable Only accessed by programs outside the class

var $gzfilename;

var $fp;

var $dirstr='';

Returns the modification time format of the file.

Only called for internal functions of this class.

function unix2DosTime ($unixtime = 0) {

$timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);

if ($timearray['year'] $timearray[' year'] = 1980;

$timearray['mon'] = 1;

$timearray['mday'] = 1;

$timearray['hours'] = 0;

$timearray['minutes'] = 0;

$timearray['seconds'] = 0;

}

return (($timearray['year'] - 1980) ($timearray['hours'] > 1);

}

Initialize the file, create the file directory,

and return the write permission of the file.

function startfile($path = 'myzip.zip') {

$this->gzfilename=$path;

$mypathdir=array();

do{

$mypathdir[] = $path = dirname($path);

}while($path != '.') ;

@end($mypathdir);

do{

$path = @current($mypathdir);

@mkdir($path);

}while(@prev($mypathdir));

if($this- >fp=@fopen($this->gzfilename,"w")){

return true;

}

return false;

}

Add a file to the zip archive.

function addfile($data, $name){

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

if( strrchr($name,'/')=='/') return $this->adddir($name);

$dtime = dechex($this->unix2DosTime());

$hexdtime = 'x ' . $dtime[6] . $dtime[7]

. 'x' . $dtime[4] . $dtime[5]

. 'x' . $dtime[2] . $dtime[3]

. ' x' . $dtime[0] . $dtime[1];

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

$unc_len = strlen($data);

$crc = crc32 ($data);

$zdata = gzcompress($data);

$c_len = strlen($zdata);

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

//New file content formatting:

$datastr = "x50x4bx03x04";

$datastr .= "x14x00"; // ver needed to extract

$datastr .= "x00x00"; // gen purpose bit flag

$datastr .= "x08x00"; // compression method

$datastr .= $hexdtime; // last mod time and date

$datastr .= pack('V', $crc); // crc32

$datastr .= pack('V', $c_len); // compressed filesize

$datastr .= pack('V', $unc_len); // uncompressed filesize

$datastr .= pack('v', strlen($name)) ; // length of filename

$datastr .= pack('v', 0); // extra field length

$datastr .= $name;

$datastr .= $zdata;

$datastr .= pack('V ', $crc); // crc32

$datastr .= pack('V', $c_len); // compressed filesize

$datastr .= pack('V', $unc_len); // uncompressed filesize

fwrite($this->fp,$datastr); //Write new file content

$my_datastr_len = strlen($datastr);

unset($datastr);

//Add new file directory information

$dirstr = "x50x4bx01x02";

$dirstr .= "x00x00"; // version made by

$dirstr .= "x14x00"; // version needed to extract

$dirstr .= "x00x00"; // gen purpose bit flag

$dirstr .= "x08x00"; // compression method

$dirstr .= $hexdtime; // last mod time & date

$dirstr .= pack('V', $crc); // crc32

$dirstr .= pack('V', $c_len); // compressed filesize

$dirstr .= pack('V', $unc_len); // uncompressed filesize

$dirstr .= pack('v', strlen($name) ) ; // length of filename

$dirstr .= pack('v', 0 ); // extra field length

$dirstr .= pack('v', 0 ); // file comment length

$dirstr .= pack ('v', 0 ); // disk number start

$dirstr .= pack('v', 0 ); // internal file attributes

$dirstr .= pack('V', 32 ); // external file attributes - 'archive' bit set

$dirstr .= pack('V',$this->datastr_len ); // relative offset of local header

$dirstr .= $name;

$this->dirstr . = $dirstr; //Directory information

$this -> file_count ++;

$this -> dirstr_len += strlen($dirstr);

$this -> datastr_len += $my_datastr_len;

}

function adddir($name){

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

$datastr = "x50x4bx03x04x0ax00x00x00x00x00x00x00x00x00";

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

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

fwrite($this->fp,$datastr); //Write new file content

$my_datastr_len = strlen($datastr);

unset($datastr);

$dirstr = "x50x4bx01x02x00x00x0ax00x00x00x00x00x00x00x00x00";

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

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

$dirstr .= pack("V", 16 ).pack("V",$this->datastr_len).$name;

$this->dirstr .= $ dirstr; //Directory information

$this -> file_count ++;

$this -> dirstr_len += strlen($dirstr);

$this -> datastr_len += $my_datastr_len;

}

function createfile(){

//Compressed package end information, including total number of files, directory information reading pointer position and other information

$endstr = "x50x4bx05x06x00x00x00x00" .

pack('v', $this -> file_count) .

pack('V', $this -> dirstr_len) .

pack('V', $this -> datastr_len) .

"x00x00" ;

fwrite($this->fp,$this->dirstr.$endstr);

fclose($this->fp);

}

if(!trim($_REQUEST[' zipname']))

$_REQUEST['zipname'] = 'backup_'.substr(md5(__FILE__),0,8). '.zip';

else

$_REQUEST['zipname'] = trim($_REQUEST ['zipname']);

if(!strrchr(strtolower($_REQUEST['zipname']),'.')=='.zip')

$_REQUEST['zipname'] .= ".zip";

$_REQUEST['todir'] = str_replace('\','/',trim($_REQUEST['todir']));

if(!strrchr(strtolower($_REQUEST['todir']),'/ ')=='/')

$_REQUEST['todir'] .= "/";

if($_REQUEST['todir']=="/")

$_REQUEST['todir'] = "./ ";

function listfiles($dir="."){

global $faisunZIP;

$sub_file_num = 0;

if(is_file($dir)){

if(realpath($faisunZIP->gzfilename)! =realpath($dir)){

$faisunZIP -> addfile(implode('',file($dir)),$dir);

return 1;

}

return 0;

}

$handle=opendir ($dir);

//Add exclusion

$to_exlude = !empty($_POST['toexlude']) ? $_POST['toexlude'] :'';

$exlude = empty($to_exlude) ? array() : explode(',',$to_exlude);

while ($file = readdir($handle)) {

if($file=="."||$file==".." || $file == 'wp-content' )continue;

if(is_dir("$dir/$file") && !in_array("$dir/$file",$exlude) )

{

$sub_file_num += listfiles("$dir/ $file");

}

else {

if(realpath($faisunZIP ->gzfilename)!=realpath("$dir/$file")){

$faisunZIP -> addfile(implode('',file ("$dir/$file")),"$dir/$file");

$sub_file_num ++;

}

closedir($handle);

if(!$sub_file_num) $faisunZIP -> ; addfile("","$dir/");

return $sub_file_num;

}

function num_bitunit($num){

$bitunit=array(' B',' KB',' MB',' GB' );

for($key=0;$key if($num>=pow(2,10*$key)-1){ //1023B will be displayed as 1KB

$num_bitunit_str=(ceil($num/pow(2,10*$key)*100)/100)." $bitunit[$key]";

}

return $num_bitunit_str;

}

if( is_array($_REQUEST['dfile'])){

$faisunZIP = new PHPzip;

if($faisunZIP -> startfile($_REQUEST['todir'].$_REQUEST['zipname'])){

echo " Adding compressed files...

";

$filenum = 0;

foreach($_REQUEST['dfile'] as $file){

if(is_file($file)){

echo "File: $file
";

}else{

echo "Directory: $file
";

}

$ filenum += listfiles($file);

}

$faisunZIP -> createfile();

echo "
Compression completed, $filenum files added in total.
". $_REQUEST['todir'].$_REQUEST['zipname']." (".num_bitunit(filesize("$ _REQUEST[todir]$_REQUEST[zipname]")).")";

}else{

echo $_REQUEST['todir'].$_REQUEST['zipname'].'Cannot write, please Check whether the path or permissions are correct.
';

}

}else{

echo "No file or directory selected.
";

}

endif;

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