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528 lines
19 KiB
PHTML
528 lines
19 KiB
PHTML
3 years ago
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<?php
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namespace util;
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/**
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* 文件压缩解压类
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*/
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class PHPZip {
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private $ctrl_dir = array();
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private $datasec = array();
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/**********************************************************
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* 压缩部分
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**********************************************************/
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// ------------------------------------------------------ //
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// #遍历指定文件夹
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//
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// $archive = new PHPZip();
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// $filelist = $archive->visitFile(文件夹路径);
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// print "当前文件夹的文件:<p>\r\n";
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// foreach($filelist as $file)
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// printf("%s<br>\r\n", $file);
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// ------------------------------------------------------ //
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var $fileList = array();
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public function visitFile($path)
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{
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global $fileList;
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$path = str_replace("\\", "/", $path);
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$fdir = dir($path);
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while(($file = $fdir->read()) !== false)
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{
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if($file == '.' || $file == '..'){ continue; }
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$pathSub = preg_replace("*/{2,}*", "/", $path."/".$file); // 替换多个反斜杠
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$fileList[] = is_dir($pathSub) ? $pathSub."/" : $pathSub;
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if(is_dir($pathSub)){ $this->visitFile($pathSub); }
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}
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$fdir->close();
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return $fileList;
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}
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private function unix2DosTime($unixtime = 0)
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{
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$timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);
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if($timearray['year'] < 1980)
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{
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$timearray['year'] = 1980;
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$timearray['mon'] = 1;
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$timearray['mday'] = 1;
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$timearray['hours'] = 0;
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$timearray['minutes'] = 0;
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$timearray['seconds'] = 0;
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}
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return ( ($timearray['year'] - 1980) << 25)
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| ($timearray['mon'] << 21)
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| ($timearray['mday'] << 16)
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| ($timearray['hours'] << 11)
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| ($timearray['minutes'] << 5)
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| ($timearray['seconds'] >> 1);
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}
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var $old_offset = 0;
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private function addFile($data, $filename, $time = 0)
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{
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$filename = str_replace('\\', '/', $filename);
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$dtime = dechex($this->unix2DosTime($time));
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$hexdtime = '\x' . $dtime[6] . $dtime[7]
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. '\x' . $dtime[4] . $dtime[5]
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. '\x' . $dtime[2] . $dtime[3]
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. '\x' . $dtime[0] . $dtime[1];
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eval('$hexdtime = "' . $hexdtime . '";');
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$fr = "\x50\x4b\x03\x04";
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$fr .= "\x14\x00";
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$fr .= "\x00\x00";
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$fr .= "\x08\x00";
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$fr .= $hexdtime;
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$unc_len = strlen($data);
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$crc = crc32($data);
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$zdata = gzcompress($data);
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$c_len = strlen($zdata);
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$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
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$fr .= pack('V', $crc);
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$fr .= pack('V', $c_len);
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$fr .= pack('V', $unc_len);
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$fr .= pack('v', strlen($filename));
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$fr .= pack('v', 0);
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$fr .= $filename;
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$fr .= $zdata;
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$fr .= pack('V', $crc);
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$fr .= pack('V', $c_len);
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$fr .= pack('V', $unc_len);
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$this->datasec[] = $fr;
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$new_offset = strlen(implode('', $this->datasec));
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$cdrec = "\x50\x4b\x01\x02";
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$cdrec .= "\x00\x00";
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$cdrec .= "\x14\x00";
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$cdrec .= "\x00\x00";
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$cdrec .= "\x08\x00";
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$cdrec .= $hexdtime;
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$cdrec .= pack('V', $crc);
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$cdrec .= pack('V', $c_len);
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$cdrec .= pack('V', $unc_len);
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$cdrec .= pack('v', strlen($filename) );
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$cdrec .= pack('v', 0 );
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$cdrec .= pack('v', 0 );
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$cdrec .= pack('v', 0 );
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$cdrec .= pack('v', 0 );
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$cdrec .= pack('V', 32 );
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$cdrec .= pack('V', $this->old_offset );
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$this->old_offset = $new_offset;
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$cdrec .= $filename;
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$this->ctrl_dir[] = $cdrec;
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}
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var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
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private function file()
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{
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$data = implode('', $this->datasec);
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$ctrldir = implode('', $this->ctrl_dir);
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return $data
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. $ctrldir
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. $this->eof_ctrl_dir
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. pack('v', sizeof($this->ctrl_dir))
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. pack('v', sizeof($this->ctrl_dir))
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. pack('V', strlen($ctrldir))
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. pack('V', strlen($data))
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. "\x00\x00";
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}
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// ------------------------------------------------------ //
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// #压缩到服务器
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//
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// $archive = new PHPZip();
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// $archive->Zip("需压缩的文件所在目录", "ZIP压缩文件名");
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// ------------------------------------------------------ //
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public function Zip($dir, $saveName)
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{
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if(@!function_exists('gzcompress')){ return; }
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ob_end_clean();
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$filelist = $this->visitFile($dir);
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if(count($filelist) == 0){ return; }
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foreach($filelist as $file)
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{
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if(!file_exists($file) || !is_file($file)){ continue; }
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$fd = fopen($file, "rb");
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$content = @fread($fd, filesize($file));
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fclose($fd);
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// 1.删除$dir的字符(./folder/file.txt删除./folder/)
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// 2.如果存在/就删除(/file.txt删除/)
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$file = substr($file, strlen($dir));
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if(substr($file, 0, 1) == "\\" || substr($file, 0, 1) == "/"){ $file = substr($file, 1); }
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$this->addFile($content, $file);
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}
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$out = $this->file();
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$fp = fopen($saveName, "wb");
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fwrite($fp, $out, strlen($out));
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fclose($fp);
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}
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// ------------------------------------------------------ //
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// #压缩并直接下载
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//
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// $archive = new PHPZip();
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// $archive->ZipAndDownload("需压缩的文件所在目录");
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// ------------------------------------------------------ //
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public function ZipAndDownload($dir, $file_name = '')
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{
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if(@!function_exists('gzcompress')){ return; }
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ob_end_clean();
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$filelist = $this->visitFile($dir);
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if(count($filelist) == 0){ return; }
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foreach($filelist as $file)
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{
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if(!file_exists($file) || !is_file($file)){ continue; }
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$fd = fopen($file, "rb");
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$content = @fread($fd, filesize($file));
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fclose($fd);
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// 1.删除$dir的字符(./folder/file.txt删除./folder/)
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// 2.如果存在/就删除(/file.txt删除/)
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$file = substr($file, strlen($dir));
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if(substr($file, 0, 1) == "\\" || substr($file, 0, 1) == "/"){ $file = substr($file, 1); }
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$this->addFile($content, $file);
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}
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$out = $this->file();
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$file_name = $file_name == '' ? 'file_'.date("YmdHis", time()) : $file_name;
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@header('Content-Encoding: none');
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@header('Content-Type: application/zip');
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@header('Content-Disposition: attachment ; filename='.$file_name.'.zip');
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@header('Pragma: no-cache');
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@header('Expires: 0');
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print($out);
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}
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/**********************************************************
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* 解压部分
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**********************************************************/
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// ------------------------------------------------------ //
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// ReadCentralDir($zip, $zipfile)
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// $zip是经过@fopen($zipfile, 'rb')打开的
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// $zipfile是zip文件的路径
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// ------------------------------------------------------ //
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private function ReadCentralDir($zip, $zipfile)
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{
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$size = filesize($zipfile);
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$max_size = ($size < 277) ? $size : 277;
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@fseek($zip, $size - $max_size);
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$pos = ftell($zip);
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$bytes = 0x00000000;
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while($pos < $size)
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{
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$byte = @fread($zip, 1);
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$bytes = ($bytes << 8) | Ord($byte);
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$pos++;
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if($bytes == 0x504b0506){ break; }
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}
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$data = unpack('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size', fread($zip, 18));
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$centd['comment'] = ($data['comment_size'] != 0) ? fread($zip, $data['comment_size']) : ''; // 注释
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$centd['entries'] = $data['entries'];
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$centd['disk_entries'] = $data['disk_entries'];
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$centd['offset'] = $data['offset'];
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$centd['disk_start'] = $data['disk_start'];
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$centd['size'] = $data['size'];
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$centd['disk'] = $data['disk'];
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return $centd;
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}
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private function ReadCentralFileHeaders($zip)
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{
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$binary_data = fread($zip, 46);
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$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', $binary_data);
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$header['filename'] = ($header['filename_len'] != 0) ? fread($zip, $header['filename_len']) : '';
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$header['extra'] = ($header['extra_len'] != 0) ? fread($zip, $header['extra_len']) : '';
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$header['comment'] = ($header['comment_len'] != 0) ? fread($zip, $header['comment_len']) : '';
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if($header['mdate'] && $header['mtime'])
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{
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$hour = ($header['mtime'] & 0xF800) >> 11;
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$minute = ($header['mtime'] & 0x07E0) >> 5;
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$seconde = ($header['mtime'] & 0x001F) * 2;
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$year = (($header['mdate'] & 0xFE00) >> 9) + 1980;
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$month = ($header['mdate'] & 0x01E0) >> 5;
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$day = $header['mdate'] & 0x001F;
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$header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
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} else {
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$header['mtime'] = time();
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}
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$header['stored_filename'] = $header['filename'];
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$header['status'] = 'ok';
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if(substr($header['filename'], -1) == '/'){ $header['external'] = 0x41FF0010; } // 判断是否文件夹
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return $header;
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}
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private function ReadFileHeader($zip)
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{
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$binary_data = fread($zip, 30);
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$data = unpack('vchk/vid/vversion/vflag/vcompression/vmtime/vmdate/Vcrc/Vcompressed_size/Vsize/vfilename_len/vextra_len', $binary_data);
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$header['filename'] = fread($zip, $data['filename_len']);
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$header['extra'] = ($data['extra_len'] != 0) ? fread($zip, $data['extra_len']) : '';
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$header['compression'] = $data['compression'];
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$header['size'] = $data['size'];
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$header['compressed_size'] = $data['compressed_size'];
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$header['crc'] = $data['crc'];
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$header['flag'] = $data['flag'];
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$header['mdate'] = $data['mdate'];
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$header['mtime'] = $data['mtime'];
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if($header['mdate'] && $header['mtime']){
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$hour = ($header['mtime'] & 0xF800) >> 11;
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$minute = ($header['mtime'] & 0x07E0) >> 5;
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$seconde = ($header['mtime'] & 0x001F) * 2;
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$year = (($header['mdate'] & 0xFE00) >> 9) + 1980;
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$month = ($header['mdate'] & 0x01E0) >> 5;
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$day = $header['mdate'] & 0x001F;
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$header['mtime'] = mktime($hour, $minute, $seconde, $month, $day, $year);
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}else{
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$header['mtime'] = time();
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}
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$header['stored_filename'] = $header['filename'];
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$header['status'] = "ok";
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return $header;
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}
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private function ExtractFile($header, $to, $zip)
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{
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$header = $this->readfileheader($zip);
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if(substr($to, -1) != "/"){ $to .= "/"; }
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if(!@is_dir($to)){ @mkdir($to, 0777); }
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$pth = explode("/", dirname($header['filename']));
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for($i=0; isset($pth[$i]); $i++){
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if(!$pth[$i]){ continue; }
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$pthss .= $pth[$i]."/";
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if(!is_dir($to.$pthss)){ @mkdir($to.$pthss, 0777); }
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}
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if(!($header['external'] == 0x41FF0010) && !($header['external'] == 16))
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{
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if($header['compression'] == 0)
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{
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$fp = @fopen($to.$header['filename'], 'wb');
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if(!$fp){ return(-1); }
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$size = $header['compressed_size'];
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while($size != 0)
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{
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$read_size = ($size < 2048 ? $size : 2048);
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$buffer = fread($zip, $read_size);
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$binary_data = pack('a'.$read_size, $buffer);
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@fwrite($fp, $binary_data, $read_size);
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$size -= $read_size;
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|
|
}
|
||
|
|
fclose($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;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------ //
|
||
|
|
// #解压文件
|
||
|
|
//
|
||
|
|
// $archive = new PHPZip();
|
||
|
|
// $zipfile = "ZIP压缩文件名";
|
||
|
|
// $savepath = "解压缩目录名";
|
||
|
|
// $zipfile = $unzipfile;
|
||
|
|
// $savepath = $unziptarget;
|
||
|
|
// $array = $archive->GetZipInnerFilesInfo($zipfile);
|
||
|
|
// $filecount = 0;
|
||
|
|
// $dircount = 0;
|
||
|
|
// $failfiles = array();
|
||
|
|
// set_time_limit(0); // 修改为不限制超时时间(默认为30秒)
|
||
|
|
//
|
||
|
|
// for($i=0; $i<count($array); $i++) {
|
||
|
|
// if($array[$i][folder] == 0){
|
||
|
|
// if($archive->unZip($zipfile, $savepath, $i) > 0){
|
||
|
|
// $filecount++;
|
||
|
|
// }else{
|
||
|
|
// $failfiles[] = $array[$i][filename];
|
||
|
|
// }
|
||
|
|
// }else{
|
||
|
|
// $dircount++;
|
||
|
|
// }
|
||
|
|
// }
|
||
|
|
// set_time_limit(30);
|
||
|
|
//printf("文件夹:%d 解压文件:%d 失败:%d<br>\r\n", $dircount, $filecount, count($failfiles));
|
||
|
|
//if(count($failfiles) > 0){
|
||
|
|
// foreach($failfiles as $file){
|
||
|
|
// printf("·%s<br>\r\n", $file);
|
||
|
|
// }
|
||
|
|
//}
|
||
|
|
// ------------------------------------------------------ //
|
||
|
|
public function unZip($zipfile, $to, $index = Array(-1))
|
||
|
|
{
|
||
|
|
$ok = 0;
|
||
|
|
$zip = @fopen($zipfile, 'rb');
|
||
|
|
if(!$zip){ return(-1); }
|
||
|
|
|
||
|
|
$cdir = $this->ReadCentralDir($zip, $zipfile);
|
||
|
|
$pos_entry = $cdir['offset'];
|
||
|
|
|
||
|
|
if(!is_array($index)){ $index = array($index); }
|
||
|
|
for($i=0; $index[$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;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**********************************************************
|
||
|
|
* 其它部分
|
||
|
|
**********************************************************/
|
||
|
|
// ------------------------------------------------------ //
|
||
|
|
// #获取被压缩文件的信息
|
||
|
|
//
|
||
|
|
// $archive = new PHPZip();
|
||
|
|
// $array = $archive->GetZipInnerFilesInfo(ZIP压缩文件名);
|
||
|
|
// for($i=0; $i<count($array); $i++) {
|
||
|
|
// printf("<b>·%s</b><br>\r\n", $array[$i][filename]);
|
||
|
|
// foreach($array[$i] as $key => $value)
|
||
|
|
// printf("%s => %s<br>\r\n", $key, $value);
|
||
|
|
// print "\r\n<p>------------------------------------<p>\r\n\r\n";
|
||
|
|
// }
|
||
|
|
// ------------------------------------------------------ //
|
||
|
|
public function GetZipInnerFilesInfo($zipfile)
|
||
|
|
{
|
||
|
|
$zip = @fopen($zipfile, 'rb');
|
||
|
|
if(!$zip){ return(0); }
|
||
|
|
$centd = $this->ReadCentralDir($zip, $zipfile);
|
||
|
|
|
||
|
|
@rewind($zip);
|
||
|
|
@fseek($zip, $centd['offset']);
|
||
|
|
$ret = array();
|
||
|
|
|
||
|
|
for($i=0; $i<$centd['entries']; $i++)
|
||
|
|
{
|
||
|
|
$header = $this->ReadCentralFileHeaders($zip);
|
||
|
|
$header['index'] = $i;
|
||
|
|
$info = array(
|
||
|
|
'filename' => $header['filename'], // 文件名
|
||
|
|
'stored_filename' => $header['stored_filename'], // 压缩后文件名
|
||
|
|
'size' => $header['size'], // 大小
|
||
|
|
'compressed_size' => $header['compressed_size'], // 压缩后大小
|
||
|
|
'crc' => strtoupper(dechex($header['crc'])), // CRC32
|
||
|
|
'mtime' => date("Y-m-d H:i:s",$header['mtime']), // 文件修改时间
|
||
|
|
'comment' => $header['comment'], // 注释
|
||
|
|
'folder' => ($header['external'] == 0x41FF0010 || $header['external'] == 16) ? 1 : 0, // 是否为文件夹
|
||
|
|
'index' => $header['index'], // 文件索引
|
||
|
|
'status' => $header['status'] // 状态
|
||
|
|
);
|
||
|
|
$ret[] = $info;
|
||
|
|
unset($header);
|
||
|
|
}
|
||
|
|
fclose($zip);
|
||
|
|
return $ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------ //
|
||
|
|
// #获取压缩文件的注释
|
||
|
|
//
|
||
|
|
// $archive = new PHPZip();
|
||
|
|
// echo $archive->GetZipComment(ZIP压缩文件名);
|
||
|
|
// ------------------------------------------------------ //
|
||
|
|
public function GetZipComment($zipfile)
|
||
|
|
{
|
||
|
|
$zip = @fopen($zipfile, 'rb');
|
||
|
|
if(!$zip){ return(0); }
|
||
|
|
$centd = $this->ReadCentralDir($zip, $zipfile);
|
||
|
|
fclose($zip);
|
||
|
|
return $centd[comment];
|
||
|
|
}
|
||
|
|
}
|