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502 lines
19 KiB
502 lines
19 KiB
<?php
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namespace App\Common\Utils;
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class Zip
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{
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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 = $fdir->read()) !== false) {
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if ($file == '.' || $file == '..') {
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continue;
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}
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$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)) {
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$this->visitFile($pathSub);
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}
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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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$timearray['year'] = 1980;
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$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, $saveName)
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{
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if (@!function_exists('gzcompress')) {
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return;
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}
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ob_end_clean();
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$filelist = $this->visitFile($dir);
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if (count($filelist) == 0) {
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return;
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}
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foreach ($filelist as $file) {
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if (!file_exists($file) || !is_file($file)) {
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continue;
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}
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$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($file, 0, 1) == "/") {
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$file = substr($file, 1);
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}
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$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)
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{
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if (@!function_exists('gzcompress')) {
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return;
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}
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ob_end_clean();
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$filelist = $this->visitFile($dir);
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if (count($filelist) == 0) {
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return;
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}
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foreach ($filelist as $file) {
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if (!file_exists($file) || !is_file($file)) {
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continue;
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}
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$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($file, 0, 1) == "/") {
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$file = substr($file, 1);
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}
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$this->addFile($content, $file);
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}
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$out = $this->file();
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@header('Content-Encoding: none');
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@header('Content-Type: application/zip');
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@header('Content-Disposition: attachment ; filename=Farticle' . date("YmdHis", time()) . '.zip');
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@header('Pragma: no-cache');
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@header('Expires: 0');
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print($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 < $size) {
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$byte = @fread($zip, 1);
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$bytes = ($bytes << 8) | Ord($byte);
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$pos++;
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// 如果不是windows服务器，则要以504b0506作为对比
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if (strrpos(strtolower(PHP_OS), "win") === FALSE && substr(dechex($bytes), -8, 8) == '504b0506') {
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break;
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} // 如果是windows服务器，则要以0x504b0506作为对比
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elseif ($bytes == 0x504b0506) {
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break;
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}
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}
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$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'] && $header['mtime']) {
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$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($header['filename'], -1) == '/') {
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$header['external'] = 0x41FF0010;
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} // 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($to, -1) != "/") {
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$to .= "/";
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}
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if (!@is_dir($to)) {
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@mkdir($to, 0777);
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}
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$pth = explode("/", dirname($header['filename']));
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$pthss = '';
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for ($i = 0; isset($pth[$i]); $i++) {
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if (!$pth[$i]) {
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continue;
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}
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$pthss .= $pth[$i] . "/";
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if (!is_dir($to . $pthss)) {
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@mkdir($to . $pthss, 0777);
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}
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}
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if (!isset($header['external']) || ($header['external'] != 0x41FF0010 && $header['external'] != 16)) {
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if ($header['compression'] == 0) {
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$fp = @fopen($to . $header['filename'], 'wb');
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if (!$fp) {
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return (-1);
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}
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$size = $header['compressed_size'];
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while ($size != 0) {
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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 -= $read_size;
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}
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fclose($fp);
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touch($to . $header['filename'], $header['mtime']);
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} else {
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$fp = @fopen($to . $header['filename'] . '.gz', 'wb');
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if (!$fp) {
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return (-1);
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}
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$binary_data = pack('va1a1Va1a1', 0x8b1f, Chr($header['compression']), Chr(0x00), time(), Chr(0x00), Chr(3));
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fwrite($fp, $binary_data, 10);
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$size = $header['compressed_size'];
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while ($size != 0) {
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$read_size = ($size < 1024 ? $size : 1024);
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$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 -= $read_size;
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}
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$binary_data = pack('VV', $header['crc'], $header['size']);
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fwrite($fp, $binary_data, 8);
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fclose($fp);
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$gzp = @gzopen($to . $header['filename'] . '.gz', 'rb') or die("Cette archive est compress!");
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if (!$gzp) {
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return (-2);
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}
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$fp = @fopen($to . $header['filename'], 'wb');
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if (!$fp) {
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return (-1);
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}
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$size = $header['size'];
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while ($size != 0) {
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$read_size = ($size < 2048 ? $size : 2048);
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$buffer = gzread($gzp, $read_size);
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$binary_data = pack('a' . $read_size, $buffer);
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@fwrite($fp, $binary_data, $read_size);
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$size -= $read_size;
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}
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fclose($fp);
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gzclose($gzp);
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touch($to . $header['filename'], $header['mtime']);
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@unlink($to . $header['filename'] . '.gz');
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}
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}
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return true;
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}
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// ------------------------------------------------------ //
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// #解压文件
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//
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// $archive = new PHPZip();
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// $zipfile = "ZIP压缩文件名";
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// $savepath = "解压缩目录名";
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// $zipfile = $unzipfile;
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// $savepath = $unziptarget;
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// $array = $archive->GetZipInnerFilesInfo($zipfile);
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// $filecount = 0;
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// $dircount = 0;
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// $failfiles = array();
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// set_time_limit(0); // 修改为不限制超时时间(默认为30秒)
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//
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// for($i=0; $i<count($array); $i++) {
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// if($array[$i][folder] == 0){
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// if($archive->unZip($zipfile, $savepath, $i) > 0){
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// $filecount++;
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// }else{
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// $failfiles[] = $array[$i][filename];
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// }
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// }else{
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// $dircount++;
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// }
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// }
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// set_time_limit(30);
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//printf("文件夹:%d 解压文件:%d 失败:%d<br>\r\n", $dircount, $filecount, count($failfiles));
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//if(count($failfiles) > 0){
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// foreach($failfiles as $file){
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// printf("·%s<br>\r\n", $file);
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// }
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//}
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// ------------------------------------------------------ //
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public function unzip($zipfile, $to, $index = Array(-1))
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{
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$ok = 0;
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$zip = @fopen($zipfile, 'rb');
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if (!$zip) {
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return (-1);
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}
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$cdir = $this->ReadCentralDir($zip, $zipfile);
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$pos_entry = $cdir['offset'];
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if (!is_array($index)) {
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$index = array($index);
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}
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for ($i = 0; isset($index[$i]) && $index[$i]; $i++) {
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if (intval($index[$i]) != $index[$i] || $index[$i] > $cdir['entries']) {
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return (-1);
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}
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}
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for ($i = 0; $i < $cdir['entries']; $i++) {
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@fseek($zip, $pos_entry);
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$header = $this->ReadCentralFileHeaders($zip);
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$header['index'] = $i;
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$pos_entry = ftell($zip);
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@rewind($zip);
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fseek($zip, $header['offset']);
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if (in_array("-1", $index) || in_array($i, $index)) {
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$stat[$header['filename']] = $this->ExtractFile($header, $to, $zip);
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}
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}
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fclose($zip);
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return $stat;
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}
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/**********************************************************
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* 其它部分
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**********************************************************/
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// ------------------------------------------------------ //
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// #获取被压缩文件的信息
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//
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// $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];
|
|
}
|
|
}
|