/php/xuzhou58/xuzhou58.com/include/zip.class.php

<?php

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(".");



	function get_List($zip_name)

	{

		$ret = '';

		$zip = @fopen($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;

	}



	//????????zip???filename???????array???dir?????file?

	//it????????

	function CompileZipFile($filename, $tozipfilename,$ftype='dir')

	{

		if (@function_exists('gzcompress'))

		{

			if($ftype=='dir')

			{

				$filelist =  $this->ListDirFiles($filename);

			}

			else if($ftype=='file')

			{

				$filelist[] =  $filename;

			}

			else

			{

				$filelist =  $filename;

			}

			$i = 0;

			if(count($filelist)>0)

			{

				foreach($filelist as $filename)

				{

					if (is_file($filename))

					{

						$i++;

						$fd = fopen ($filename, "r");

						if(filesize($filename)>0)

						{

							$content = fread($fd, filesize($filename));

						}

						else

						{

							$content = ' ';

						}

						fclose ($fd);



						//if (is_array($dir)) $filename = basename($filename);

						$this->add_File($content, $filename);

					}

				}

				$out = $this->get_file();

				$fp = fopen($tozipfilename, "w");

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

				fclose($fp);

			}

			return $i;

		}

		else

		{

			return 0;

		}

	}



	//???????????

	function ListDirFiles($dirname)

	{

		$files = array();

		if(is_dir($dirname))

		{

			$fh = opendir($dirname);

			while (($file = readdir($fh)) !== false)

			{

				if (strcmp($file, '.')==0 || strcmp($file, '..')==0)

				{

					continue;

				}

				$filepath = $dirname . '/' . $file;

				if ( is_dir($filepath) )

				{

					$files = array_merge($files, $this->ListDirFiles($filepath));

				}

				else

				{

					array_push($files, $filepath);

				}

			}

			closedir($fh);

		}

		else

		{

			$files = false;

		}

		return $files;

	}



	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)

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

	}



	//???????

	//??? Extract ?????????????????????????????????? Extract

	function ExtractAll ( $zn, $to)

	{

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

		{

			$to .= "/";

		}

		$files = $this->get_List($zn);

		$cn = count($files);

		if(is_array($files))

		{

			for($i=0;$i<$cn;$i++)

			{

				if($files[$i]['folder']==1)

				{

					@mkdir($to.$files[$i]['filename'],$GLOBALS['cfg_dir_purview']);

					@chmod($to.$files[$i]['filename'],$GLOBALS['cfg_dir_purview']);

				}

			}

		}

		$this->Extract ($zn,$to);

	}



	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($i=0; isset($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 == 0x504b0506)

			{

				$pos++; break;

			}

			$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']);

		}

		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);

		$header['external'] = (!isset($header['external']) ? 0 : $header['external']);

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

		{

			$to.="/";

		}

		if(!@is_dir($to))

		{

			@mkdir($to,$GLOBALS['cfg_dir_purview']);

		}

		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') or die("Cette archive est compress");

				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;

	}

}

?>