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<?php

//验证密码
$password = "123456";

?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>压缩文件</title>
<style type="text/css">
<!--
body,td{
 font-size: 14px;
 color: #000000;
}
a {
 color: #000066;
 text-decoration: none;
}
a:hover {
 color: #FF6600;
 text-decoration: underline;
}
-->
</style>
</head>

<body>
  <form name="myform" method="post" action="<?=$_SERVER[PHP_SELF];?>">
<font color="#FF0000"> faisun_zip -在线压缩ZIP文件程序 V1.0</font><br>

<div style="color:#FF9900">
   <p>转载请注明:本程序由 <a href="http://www.softpure.com/" target="_blank">纯粹空间</a>(<a href="http://www.softpure.com/" target="_blank">http://www.softpure.com</a>) 提供,作者:faisun(<a href="mailto:faisun@sina.com">faisun@sina.com</a>).</p>
      <p>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。</p>
      <p>压缩的结果保留原来的目录结构。</p>
</div>
<?
if(!$_REQUEST["myaction"]):
?>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
 <tr>
      <td width="11%">验证密码: </td>
      <td width="89%"><input name="password" type="password" id="password" size="15">
      (源文件中设定的密码) </td>
    </tr>
    <tr>
      <td><input name="myaction" type="hidden" id="myaction" value="dolist"></td>
      <td><input type="submit" name="Submit" value=" 进 入 "></td>
    </tr>
  </table>
<?

elseif($_REQUEST["myaction"]=="dolist"):
 if($_REQUEST['password'] != $password) die("输入的密码不正确,请重新输入。");
 echo "选择要压缩的文件或目录:<br>";
   $fdir = opendir('./');
 while($file=readdir($fdir)){
  if($file=='.'|| $file=='..') continue;
  echo "<input name='dfile[]' type='checkbox' value='$file' ".($file==basename(__FILE__)?"":"checked")."> ";
  if(is_file($file)){
   echo "文件: $file<br>";
  }else{
   echo "目录: $file<br>";
  }
 }
?>
<br>
压缩文件保存到目录:
<input name="todir" type="text" id="todir" value="__zipfiles__" size="15">
(留空为本目录,必须有写入权限)<br>
压缩文件名称:
<input name="zipname" type="text" id="zipname" value="faisunzip.zip" size="15">
(.zip)<br>
<br>
<input name="password" type="hidden" id="password" value="<?=$_POST['password'];?>">
<input name="myaction" type="hidden" id="myaction" value="dozip">
<input type='button' value='反选' onclick='selrev();'>
<input type="submit" name="Submit" value=" 开始压缩 ">
<script language='javascript'>
function selrev() {
 with(document.myform) {
  for(i=0;i<elements.length;i++) {
   thiselm = elements[i];
   if(thiselm.name.match(/dfile\[]/)) thiselm.checked = !thiselm.checked;
  }
 }
}
</script>
<?

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

  set_time_limit(0);

  class PHPzip{

 var $file_count = 0 ;
 var $datastr_len   = 0;
 var $dirstr_len = 0;
 var $filedata = ''; //该变量只被类外部程序访问
 var $gzfilename;
 var $fp;
 var $dirstr='';
 /*
 返回文件的修改时间格式.
 只为本类内部函数调用.
 */
    function unix2DosTime($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);
    }

 /*
 初始化文件,建立文件目录,
 并返回文件的写入权限.
 */
 function startfile($path = 'faisun.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;
 }

 /*
 添加一个文件到 zip 压缩包中.
 */
    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);
 
  //新添文件内容格式化:
        $datastr  = "\x50\x4b\x03\x04";
        $datastr .= "\x14\x00";            // ver needed to extract
        $datastr .= "\x00\x00";            // gen purpose bit flag
        $datastr .= "\x08\x00";            // 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); //写入新的文件内容
  $my_datastr_len = strlen($datastr);
  unset($datastr);
 
  //新添文件目录信息
        $dirstr  = "\x50\x4b\x01\x02";
        $dirstr .= "\x00\x00";                 // version made by
        $dirstr .= "\x14\x00";                 // version needed to extract
        $dirstr .= "\x00\x00";                 // gen purpose bit flag
        $dirstr .= "\x08\x00";                 // 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; //目录信息
 
  $this -> file_count ++;
  $this -> dirstr_len += strlen($dirstr);
  $this -> datastr_len += $my_datastr_len;
    }

 function adddir($name){
  $name = str_replace("\\", "/", $name);
  $datastr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00";
 
  $datastr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) );
  $datastr .= pack("v", 0 ).$name.pack("V", 0).pack("V", 0).pack("V", 0);

  fwrite($this->fp,$datastr); //写入新的文件内容
  $my_datastr_len = strlen($datastr);
  unset($datastr);
 
  $dirstr = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00";
  $dirstr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($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; //目录信息

  $this -> file_count ++;
  $this -> dirstr_len += strlen($dirstr);
  $this -> datastr_len += $my_datastr_len;
 }


 function createfile(){
  //压缩包结束信息,包括文件总数,目录信息读取指针位置等信息
  $endstr = "\x50\x4b\x05\x06\x00\x00\x00\x00" .
     pack('v', $this -> file_count) .
     pack('v', $this -> file_count) .
     pack('V', $this -> dirstr_len) .
     pack('V', $this -> datastr_len) .
     "\x00\x00";

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

 
 if(!trim($_REQUEST[zipname])) $_REQUEST[zipname] = "faisunzip.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");
  while ($file = readdir($handle)) {
     if($file=="."||$file=="..")continue;
     if(is_dir("$dir/$file")){
    $sub_file_num += listfiles("$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;$key<count($bitunit);$key++){
  if($num>=pow(2,10*$key)-1){ //1023B 会显示为 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 "正在添加压缩文件...<br><br>";
   $filenum = 0;
   foreach($_REQUEST[dfile] as $file){
    if(is_file($file)){
     echo "文件: $file<br>";
    }else{
     echo "目录: $file<br>";
    }
    $filenum += listfiles($file);
   }
   $faisunZIP -> createfile();
   echo "<br>压缩完成,共添加 $filenum 个文件.<br><a href='$_REQUEST[todir]$_REQUEST[zipname]'>$_REQUEST[todir]$_REQUEST[zipname] (".num_bitunit(filesize("$_REQUEST[todir]$_REQUEST[zipname]")).")</a>";
  }else{
   echo "$_REQUEST[todir]$_REQUEST[zipname] 不能写入,请检查路径或权限是否正确.<br>";
  }
 }else{
  echo "没有选择的文件或目录.<br>";
 }


endif;

?>
  </form>
</body>
</html>