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- <?php
- /**
- * Zip压缩类
- *
- * @version $Id: zip.class.php 1 15:21 2010年7月5日Z tianya $
- * @package DedeCMS.Libraries
- * @copyright Copyright (c) 2020, DedeBIZ.COM
- * @license https://www.dedebiz.com/license
- * @link https://www.dedebiz.com
- */
- 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(".");
-
- /**
- * 获取zip文件中的文件列表
- *
- * @access public
- * @param string $zip_name zip文件名
- * @return array
- */
- function get_List($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;
- }
-
- /**
- * 增加文件到压缩文件
- *
- * @access public
- * @param string $files 需要增加的文件列表,可以是字符串也可以是数组
- * @param string $compact 压缩文件名称
- * @return array 压缩文件信息
- */
- function Add($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;
- }
-
- /**
- * 获取文件,获取后可以让其进行下载
- *
- * @access public
- * @return void
- */
- 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";
- }
-
- /**
- * 增加文件目录
- *
- * @access public
- * @param string $name 目录名称
- * @return void
- */
- function add_dir($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;
- }
-
- /**
- * 编译指定的文件为zip文件(filename可以为文件数组array、目录dir或单个文件file)
- *
- * @access public
- * @param string $filename 文件名称
- * @param string $tozipfilename 压缩文件名称
- * @param string $ftype 压缩类型
- * @return int 影响文件数
- */
- function CompileZipFile($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;
- }
- }
-
- /**
- * 读取某文件夹的所有文件
- *
- * @access public
- * @param string $dirname 目录名称
- * @return mix 如果失败则返回false
- */
- function ListDirFiles($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;
- }
-
- /**
- * 增加文件
- *
- * @access public
- * @param string $data 数据
- * @param string $name 名称
- * @param string $compact 压缩
- * @return string
- */
- function add_File($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;
- }
-
- /**
- * 返回时间
- *
- * @access public
- * @return int
- */
- 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);
- }
-
- /**
- * 解压整个压缩包
- * 直接用 Extract 会有路径问题,本函数先从列表中获得文件信息并创建好所有目录然后才运行 Extract
- *
- * @access public
- * @param string $zn zip文件名称
- * @param string $to 解压到的目录地址
- * @return string
- */
- 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);
- }
-
- /**
- * 解压单个文件
- *
- * @access public
- * @param string $zn zip文件名称
- * @param string $to 解压到的目录地址
- * @return string
- */
- 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;
- }
- }
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