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php实现文件压缩

WBOY
WBOY原创
2016-06-08 17:32:491109浏览
<script>ec(2);</script>

/*
－－－－－－－－－－－－－－－－－－－－－－－－－－
Copyright by T.muqiao(39号天堂桥)
本程序仅供学习讨论使用,在未通知作者作为任何商业用途
         视为中华人民共和国不道德公民
联系方式:442536278@qq.com
－－－－－－－－－－－－－－－－－－－－－－－－－*/
if(!defined('IN_SELF')){
 header('HTTP/1.1 404 NOT Found');
 exit;
}
class ZipAllFloder{//压缩文件夹
   
 var $datasec      = array();
 var $ctrl_dir     = array();
 var $eof_ctrl_dir = "x50x4bx05x06x00x00x00x00";
 var $old_offset   = 0;
 var $dirs         = array(".","");
 var $dirlen       = 0;
   
 function IniVars(){//初始化变量
        $this -> datasec      = array();
        $this -> ctrl_dir     = array();
        $this -> eof_ctrl_dir = "x50x4bx05x06x00x00x00x00";
        $this -> old_offset   = 0;
        $this -> dirs         = array(".","");
  $this -> dirlen       = 0;
    }
   
 function ZipFolder($dir,$zipfilename){//压缩一个文件夹
        if(substr($dir,-1)!="/"){
   $dir .= "/";
  }
  $this -> dirlen = strlen($dir);
        $this -> AddFolderContent($dir);
        $out = $this -> get_file();
        $this -> IniVars();
        $fp = fopen($zipfilename,"w"); 
        fwrite($fp,$out,strlen($out)); 
        fclose($fp);
    }
   
    function AddFolderContent($dir){//添加文件夹中文件内容
        if(is_dir($dir)){
   $folder = substr($dir,$this ->dirlen);
            if(!in_array($folder,$this->dirs)){
                $this->add_Dir($folder);
            }
            $handle = opendir($dir);
            while($files = readdir($handle)){
                if (($files==".")||($files=="..")) continue;
                if(is_dir($dir.$files)){
                    $this->AddFolderContent($dir.$files."/");
                }else{
                    $fp = fopen ($dir.$files,"r");
                    $content = @fread ($fp,filesize($dir.$files)); 
                    fclose ($fp); 
                    $this->add_File($content,$folder.$files);
                }
            } 
            closedir($handle);
        }
    }
 function get_file(){//获取压缩文件数据
        $data = implode('', $this -> datasec);
        $ctrldir = implode('', $this -> ctrl_dir);
        返回 $data 。 $ctrldir . $这个-> eof_ctrl_dir .
        pack('v', sizeof($this -> ctrl_dir)).pack('v', sizeof($this -> ctrl_dir)).
        pack('V', strlen($ctrldir)) 。 pack('V', strlen($data)) 。 “x00x00”;
    }
   
    函数 add_dir($name){
        $name   = str_replace("\", "/", $name);
        $fr     = "x50x4bx03x04x0ax00x00x00x00x00x00x00x00x00";
        $fr    .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) );
        $fr    .= pack("v", 0 ).$name.pack("V", 0).pack("V", 0).pack("V", 0);
        $这个-> datasec[] = $fr;
        $new_offset = strlen(implode("", $this->datasec));
        $cdrec = "x50x4bx01x02x00x00x0ax00x00x00x00x00x00x00x00x00";
        $cdrec .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) );
        $cdrec .= pack("v", 0 ).pack("v", 0 ).pack("v", 0 ).pack("v", 0 );
        $ext = "xffxffxffxff";
        $cdrec .= pack("V", 16 ).pack("V", $this -> old_offset ).$name;
        $这个-> ctrl_dir[] = $cdrec;
        $这个->旧偏移量 = $新偏移量；
        $这个->目录[] = $名称;
    }
   
    function add_File($data, $name, $compact = 1){
        $name     = str_replace('\', '/', $name);
        $dtime    = dechex($this->DosTime());
        $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){
            $fr = "x50x4bx03x04x14x00x00x00x08x00".$hexdtime;
        }其他{
            $fr = "x50x4bx03x04x0ax00x00x00x00x00".$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);
        }其他{
            $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);
        $这个-> datasec[] = $fr;
        $new_offset        = strlen(implode('', $this->datasec));
        if($compact){
            $cdrec = "x50x4bx01x02x00x00x14x00x00x00x08x00";
        }其他{
            $cdrec = "x50x4bx01x02x14x00x0ax00x00x00x00x00";
        }
        $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 );
        $这个->旧偏移量 = $新偏移量;
        $cdrec .= $name;
        $这个-> ctrl_dir[] = $cdrec;
        返回真；
    }
   
    函数 DosTime() {
        $timearray = getdate();
        if ($timearray['year']             $timearray['年份'] = 1980; $timearray['mon'] = 1;
            $timearray['mday'] = 1; $timearray['小时'] = 0;
            $timearray['分钟'] = 0; $timearray['秒'] = 0;
        }
        返回 (($timearray['year']-1980)>1);
    }
}

类解压缩{
 函数 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    $header                  = $this->ReadCentralFileHeaders($zip);
   $header['index']         = $i;
   $info['文件名']        = $header['文件名'];
   $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[]                   = $info;
   未设置($header);
  }
  返回 $ret;
 }
 
 函数 Extract($zn,$to,$index = array(-1) ){
  $确定= 0；
  $zip = @fopen($zn,'rb');
  if(!$zip){
   返回(-1);
  }
  $cdir = $this->ReadCentralDir($zip,$zn);
  $pos_entry = $cdir['offset'];
  if(!is_array($index)){
   $索引 = 数组($索引); 
  }
  for($i=0; $index[$i];$i ){
   if(intval($index[$i])!=$index[$i]||$index[$i]>$cdir['entries']){
    返回(-1);
   }
  }
  for ($i=0; $i    @fseek($zip, $pos_entry);
   $header = $this->ReadCentralFileHeaders($zip);
   $header['索引'] = $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);
  返回 $stat;
 }
 
 函数 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']);
  }其他{
   $header['额外'] = '';
  }
  $header['压缩'] = $data['压缩'];$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']){
   $小时=($header['mtime']&0xF800)>>11;$分钟=($header['mtime']&0x07E0)>>5;
   $seconde=($header['mtime']&0x001F)*2;$year=(($header['mdate']&0xFE00)>>9) 1980;
   $month=($header['mdate']&0x01E0)>>5;$day=$header['mdate']&0x001F;
   $header['mtime'] = mktime($小时, $分钟, $秒, $月, $日, $年);
  }其他{
   $header['mtime'] = time();
  }
  $header['stored_filename'] = $header['filename'];
  $header['status'] = "ok";
  返回 $header;
 }
 
 函数 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']);
  }其他{
   $header['文件名'] = '';
  }
  if ($header['extra_len'] != 0){
   $header['extra'] = fread($zip, $header['extra_len']);
  }其他{
   $header['extra'] = '';
  }
  if ($header['comment_len'] != 0){
   $header['comment'] = fread($zip, $header['comment_len']);
  }否则{
   $header['comment'] = '';
  }
  if ($header['mdate'] && $header['mtime']){
   $hour = ($header['mtime'] & 0xF800) >>> 11；
   $分钟 = ($header['mtime'] & 0x07E0) >>> 5;
   $seconde = ($header['mtime'] & 0x001F)*2;
   $year = (($header['mdate'] & 0xFE00) >> 9) 1980;
   $month = ($header['mdate'] & 0x01E0) >>> 5;
   $day = $header['mdate'] & 0x001F;
   $header['mtime'] = mktime($小时, $分钟, $秒, $月, $日, $年);
  }其他{
   $header['mtime'] = time();
  }
  $header['stored_filename'] = $header['filename'];
  $header['status'] = 'ok';
  if (substr($header['文件名'], -1) == '/'){
   $header['external'] = 0x41FF0010;
  }
  返回 $header;
 }
 
 函数 ReadCentralDir($zip,$zip_name){
  $size = 文件大小($zip_name);
  if ($size    $maximum_size = $size;
  }其他{
   $maximum_size=277;
  }
  @fseek($zip, $size-$maximum_size);
  $pos = ftell($zip);
  $字节 = 0x00000000;
  while ($pos    $byte = @fread($zip, 1); $bytes=($bytes    if ($bytes == 0x504b0506){
    $位置;
    休息;
   }
   $pos ;
  }
  $data = unpack('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size',
  fread($zip, 18));
  if ($data['comment_size'] != 0){
   $centd['comment'] = fread($zip, $data['comment_size']);
  }其他{
   $centd['评论'] = ''; $centd['entries'] = $data['entries'];
  }
  $centd['disk_entries'] = $data['disk_entries'];
  $centd['offset'] = $data['offset'];$centd['disk_start'] = $data['disk_start'];
  $centd['尺寸'] = $data['尺寸'];  $centd['disk'] = $data['disk'];
  返回 $centd;
 }
 
 函数ExtractFile($header,$to,$zip){
  $header = $this->readfileheader($zip);
  if(substr($to,-1)!="/"){
   $to.="/";
  }
  if(!@is_dir($to)){
   @mkdir($to,0777);
  }
  $pth = Explode("/",dirname($header['filename']));
  for($i=0;isset($pth[$i]);$i ){
   if(!$pth[$i]){
    继续；
   }
   if(!is_dir($to.$pth[$i])){
    @mkdir($to.$pth[$i],0777);
   }
  }
  if (!($header['external']==0x41FF0010)&&!($header['external']==16)){
   if ($header['压缩']==0){
    $fp = @fopen($to.$header['文件名'], 'wb');
    if(!$fp){
     返回(-1);
    }
    $size = $header['compressed_size'];
    while ($size != 0){
     $read_size = ($size      $buffer = fread($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']);
   }其他{
    $fp = @fopen($to.$header['文件名'].'.gz','wb');
    if(!$fp){
     返回(-1);
    }
    $binary_data = pack('va1a1Va1a1', 0x8b1f, Chr($header['压缩']),
    Chr(0x00)、时间()、Chr(0x00)、Chr(3));
    fwrite($fp, $binary_data, 10);
    $size = $header['compressed_size'];
    while ($size != 0){
     $read_size = ($size      $buffer = fread($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.$header['filename'].'.gz','rb') 或 die("Cette archive est compress");
    if(!$gzp){
     返回(-2);
    }
    $fp = @fopen($to.$header['文件名'],'wb');
    if(!$fp){
     返回(-1);
    }
    $size = $header['size'];
    while ($size != 0){
     $read_size = ($size      $buffer = gzread($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['文件名'].'.gz');
   }
  }
  返回真；
 }
}

class StatFolder{//统计文件夹内容
 var $Num       = 0;
 var $Size      = 0;
 var $TypeNum   = 0;
 var $FolderNum = 0;
 var $Type      = array();
 函数 __construct($folder){
  $这个-> ReadFolder($folder);
 }
 函数 StatFolder($folder){
  $这个-> ReadFolder($folder);
 }
 函数 ReadFolder($folder){
  if(is_dir($folder)){
   $handle = opendir($folder);
            while($files = readdir($handle)){
                if (($files==".")||($files=="..")) 继续；
                if(is_dir($folder."/".$files)){
     $this ->FolderNum ;
                    $this ->ReadFolder($folder."/".$files);
                }其他{
     $this ->Num ;
     $type = fileext($files);
     if(!in_array($type,$this ->Type)){
      $this ->Type[] = $type;
      $this ->TypeNum ;
     }
                    $size = 文件大小($folder."/".$files); 
                    $this->大小=$size;
     清除统计缓存（）；
                }
            } 
            closeir($handle);
        }
 }
 函数 GetFileNum(){
  返回 $this ->数字；
 }
 函数 GetTotalSize(){
  $switch = $this->Size/1024;
  if($switch    $return =explode(".",$switch);
   if($return[0]==0){
    return $this->Size."    }
   return $return[0].".".substr($return[1],0,3)."千字节";
  }其他{
   $switch /=1024;
   $return =explode(".",$switch);
   return $return[0].".".substr($return[1],0,3)."★Mbytes";
  }
 }
 函数 GetTypeNum(){
  返回 $this ->类型编号；
 }
 函数 GetFolderNum(){
  返回 $this ->文件夹编号;
 }
}

function matchpath($reference,$testpath){//检查$testpath是否数学上的属于$reference参照路径
 $reference=explode("/",$reference);
 $testpath = 爆炸("/",$testpath);
 $num1 = count($reference);
 $num2 = count($testpath);
 if($num1   返回错误；
 }
 $度= 0;
 for($i=0;$i   if(strtolower($testpath[$i])==strtolower($reference[$i])){
   $学位;
   继续；
  }其他{
   返回错误；
   休息；
  }
 }
 if($level==$num2){
  返回真；
 }
}

function checkcore($path){//检查核心文件是否包含其中
 全局 $T_corefile;
 for($i=0;$p=$T_corefile[$i];$i ){
  if(matchpath($p,$path)){
   返回真；
   休息；
  }
 }
}

function copypath($source,$target,$uncover=true){//拷贝整个目录   默认不允许覆盖
 global $T_lang;
 if(is_dir($target)){
  if($uncover){
   $errors .= str_replace("--replace--",$target,$T_lang['func'][0]);
   $gocover = false;
  }else{
   $gocover = true;
  }
 }else{
  if(matchpath($target,$source)){//检测目录$source是否包含于$target
   $errors .= str_replace("--replace--",$source,$T_lang['func'][1]);
   $gocover = false;
  }else{
   if(@mkdir($target,0777)){
    $gocover = true;
   }else{
    $errors .= str_replace("--replace--",$target,$T_lang['func'][2]);
    $gocover = false;
   }
  }
 }
 if($gocover){
  $handle = opendir($source);
  while($file = readdir($handle)){
   clearstatcache();
   if(substr($file,-1)=="."||substr($file,-2)=="..") continue;
   if(is_dir($source."/".$file)){
    $errors .= copypath($source."/".$file,$target."/".$file,$uncover);
   }else{
    $gocopy = true;
    if(file_exists($target."/".$file)){
     if($uncover){
      $gocopy = false;
     }else{
      if(@unlink($target."/".$file)){
       $gocopy = true;
      }else{
       $gocopy = false;
      }
     }
    }
    if($gocopy){
     if(@copy($source."/".$file,$target."/".$file)){
      $errors .= "";
     }else{
      $errors .= str_replace("--replace--",$source."/".$file,$T_lang['func'][3]);
     }
    }else{
     $errors .= str_replace("--replace--",$target."/".$file,$T_lang['func'][4]);
    }
   }
  }
  closedir($handle);
 }
 if($errors){
  return $errors;
 }else{
  return "";
 }
}

function movepath($source,$target,$uncover=true){//移动整个目录  默认不允许覆盖
 global $T_lang;
 if(is_dir($target)){
  if($uncover){
   $errors .= str_replace("--replace--",$target,$T_lang['func'][0]);
   $gocover = false;
  }else{
   $gocover = true;
  }
 }else{
  if(matchpath($target,$source)){//检测目录$source是否包含于$target
   $errors .= str_replace("--replace--",$source,$T_lang['func'][5]);
   $gocover = false;
  }else{
   if(@mkdir($target,0777)){
    $gocover = true;
   }else{
    $errors .= str_replace("--replace--",$target,$T_lang['func'][2]);
    $gocover = false;
   }
  }
 }
 if($gocover){
  $handle = opendir($source);
  while($file = readdir($handle)){
   clearstatcache();
   if(substr($file,-1)=="."||substr($file,-2)=="..") continue;
   if(!is_dir($source."/".$file)){
    $gocopy = true;
    if(file_exists($target."/".$file)){
     if($uncover){
      $gocopy = false;
     }else{
      $gocopy = true;
     }
    }
    if($gocopy){
     if(@copy($source."/".$file,$target."/".$file)){
      unlink($source."/".$file);
     }else{
      $errors .= str_replace("--replace--",$source."/".$file,$T_lang['func'][3]);
     }
    }else{
     $errors .= str_replace("--replace--",$target."/".$file,$T_lang['func'][6]);
    }
   }else{
    $errors .= movepath($source."/".$file,$target."/".$file,$uncover);
   }
  }
  closedir($handle);
 }
 if($errors){
  return $errors;
 }else{
  if(@rmdir($source."/".$file)){
   return "";
  }else{
   $errors .= str_replace("--replace--",$source,$T_lang['func'][7]);
  }
 }
}

function delpath($source){//删除整个目录
 global $T_lang,$T_Recycled;
 $handle = opendir($source);
 while($file = readdir($handle)){
  clearstatcache();
  if(substr($file,-1)=="."||substr($file,-2)=="..") continue;
  if(is_dir($source."/".$file)){
   $errors .= delpath($source."/".$file);
  }else{
   if(@unlink($source."/".$file)){
   }else{
    $errors .= str_replace("--replace--",$source,$T_lang['func'][7]);
   }   
  }
 }
 closedir($handle);
 if($errors){
  $errors .= str_replace("--replace--",$source,$T_lang['func'][8]);
  return $errors;
 }else{
  if($source==$T_Recycled){//清空回收站时 这个判断条件用的上
   return "";
  }else{
   if(@rmdir($source)){
    return "";
   }else{
    $errors .= str_replace("--replace--",$source,$T_lang['func'][8]);
    return $errors;
   }  
  }
 }
}

function limitname($title,$limitlength =13){//限制标题长度
 $length = strlen($title);
 if($length>$limitlength){
  $gbk = 0;
  for($i=0;$i    $temp = substr($title,$i,1);
   if(ord($temp)>127) $gbk =1;
  }
  if($gbk%2){
   $title = substr($title,0,$limitlength)."...";
  }其他{
   $title = substr($title,0,$limitlength-1)."...";
  }
 }
 返回 $title;
}

函数 fileext($filename){
 return trim(substr(strrchr($filename, '.'), 1));
}

function checkpath($path){//检查路径合法性和合格性
 $path = eregi_replace("root",".",$path);
 if($path=="."||ereg("^(./).*[^./]$",$path)){
  if(eregi("./(.*)?(../) .",$path)){
   返回错误；
  }其他{
   if(is_dir($path)){
    返回 $path;
   }其他{
    返回错误；
   }
  }
 }其他{
  返回错误；
 }
}

function HistoryPath(){//历史路径
 全局 $path,$T_rlength,$T_images,$T_main,$T_Recycled;
 $ruote = Explode("/",$path);
 $num = count($ruote);
 if($num   返回错误；
 }其他{
  if($num-1>$T_rlength){
   $i = $num-$T_rlength;
  }其他{
   $i = 1;
  }
     for(;$i    $rs .= "php实现文件压缩    $single = ".";
   for($j=1;$j     $single .= "/".$ruote[$j];
   }
   $rs .= urlencode($single)."">php实现文件压缩    if($single==$T_Recycled){
    $rs .= $T_images."/Recycled.gif";
   }其他{
    $rs .= $T_images."/folder.gif";
   }
   $rs .= "" height="50" width="50"align=absmiddle>".limitname($ruote[$i])."";
  }
  返回 $rs;
 }
}
？>

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