递归压缩多文件下载

拼搏现实的明天。 2022-06-18 08:15 151阅读 0赞

<?php namespace Org\Net; class PhpZip{ Private $StrPath = ""; Private $datasec = array(); Private $ctrl_dir = array(); Private $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; Private $old_offset = 0; //压缩后下载 function DownLoad($curdir, $zipfilename, $out) { $zipfilename = StrToLower($zipfilename); $curdir = Str_iReplace(basename($curdir), "", $curdir); chdir($curdir . $this->StrPath); header('Content-Encoding: none'); header('Content-Type: application/zip'); header('Content-Disposition: attachment ; filename=' . Str_Replace(".zip", "", basename($zipfilename)) . '.zip'); header('Pragma: no-cache'); header('Expires: 0'); print($out); } //压缩后保存在服务器,默认在/@Upload下 function SaveFile($curdir, $zipfilename, $out) { $curdir = Str_iReplace(basename($curdir), "", $curdir); chdir($curdir . $this->StrPath); $fp = fopen($zipfilename, "wb"); fwrite($fp, $out, strlen($out)); fclose($fp); } //函数用途:压缩文件夹,递归逐层进行 //参数详解:$dir需要压缩的目录,$zipfilename压缩后的文件名及存放路径,$Todo处理方式1提供下载2保存文件在服务器 function ZipDir($dir, $zipfilename, $Todo) { IF (!@function_exists('gzcompress')) { Return 0; } @set_time_limit("0"); if(is_array($dir)){ for ($i=0; $i < count($dir); $i++) { $res = $this->openFile($dir[$i], $zipfilename , $dir[$i]); } }else { $res = $this->openFile($dir, $zipfilename , $dir); } if($res['code'] == -1){ return $res; } $out = $this->filezip(); Switch ($Todo) { Case "1": $this->DownLoad(__FILE__, $zipfilename, $out); Break; Case "2": $this->SaveFile(__FILE__, $zipfilename, $out); Break; } } //函数用途:压缩文件,可以是单个也可以是数组的多个 //参数详解:$file需要压缩的文件(可为数组),$zipfilename压缩后的文件名及存放路径,$Todo处理方式1提供下载2保存文件在服务器 function ZipFile($file, $zipfilename, $Todo) { IF (!@function_exists('gzcompress')) { Return 0; } IF (is_array($file)) { Foreach ($file as $filename) { IF (is_file($filename)) { $fd = fopen($filename, "rb"); $content = @fread($fd, filesize($filename)); fclose($fd); $filename = basename($filename); $this->addFile($content, $filename); } } } Else { IF (is_file($file)) { $fd = fopen($file, "rb"); $content = @fread($fd, filesize($file)); fclose($fd); $file = basename($file); $this->addFile($content, $file); } } $out = $this->filezip(); Switch ($Todo) { Case "1": $this->DownLoad(__FILE__, $zipfilename, $out); Break; Case "2": $this->SaveFile(__FILE__, $zipfilename, $out); Break; } } //递归取得下层文件夹下的文件 function openFile($path, $zipName, $dirname) { if(!file_exists($path)){ $code['code'] = -1; $code['path'] = $path; return $code; } $temp_path = $path; $temp_zip_path = $zipName; $pos = strripos($dirname, '/'); $path_name = substr($path, $pos); IF ($handle = @opendir($path)) { While (false !== ($file = readdir($handle))) { IF ($file != '.' and $file != '..') { IF (preg_match('/\./', $file . @basename())) { $fd = fopen($path . '/' . $file, "r"); $fileValue = @fread($fd, 1024000); fclose($fd); $this->addFile($fileValue, $path_name . '/' . $file); } Else { $this->openFile($path . '/' . $file, $zipName . '/' . $file, $dirname); } } } $zipName = $temp_zip_path; $path = $temp_path; closedir($handle); } } function addFile($data, $name, $time = 0) { $name = str_replace('\\', '/', $name); $name = str_replace('./', '', str_replace('../', '', $name)); $dtime = dechex($this->unix2DosTime($time)); $hexdtime = '\x' . $dtime[6] . $dtime[7] . '\x' . $dtime[4] . $dtime[5] . '\x' . $dtime[2] . $dtime[3] . '\x' . $dtime[0] . $dtime[1]; Eval('$hexdtime="' . $hexdtime . '";'); $fr = "\x50\x4b\x03\x04"; $fr.="\x14\x00"; $fr.="\x00\x00"; $fr.="\x08\x00"; $fr.=$hexdtime; $unc_len = strlen($data); $crc = crc32($data); $zdata = gzcompress($data); $c_len = strlen($zdata); $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2); $fr.=pack('V', $crc); $fr.=pack('V', $c_len); $fr.=pack('V', $unc_len); $fr.=pack('v', strlen($name)); $fr.=pack('v', 0); $fr.=$name; $fr.=$zdata; $fr.=pack('V', $crc); $fr.=pack('V', $c_len); $fr.=pack('V', $unc_len); $this->datasec[] = $fr; $new_offset = strlen(implode('', $this->datasec)); $cdrec = "\x50\x4b\x01\x02"; $cdrec.="\x00\x00"; $cdrec.="\x14\x00"; $cdrec.="\x00\x00"; $cdrec.="\x08\x00"; $cdrec.=$hexdtime; $cdrec.=pack('V', $crc); $cdrec.=pack('V', $c_len); $cdrec.=pack('V', $unc_len); $cdrec.=pack('v', strlen($name)); $cdrec.=pack('v', 0); $cdrec.=pack('v', 0); $cdrec.=pack('v', 0); $cdrec.=pack('v', 0); $cdrec.=pack('V', 32); $cdrec.=pack('V', $this->old_offset); $this->old_offset = $new_offset; $cdrec.=$name; $this->ctrl_dir[] = $cdrec; } function filezip() { $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($data)) . "\x00\x00"; } function unix2DosTime($unixtime = 0) { $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime); IF ($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) | ($timearray['seconds'] >> 1); } /* 解压缩部分 用途:解压缩文件 参数:$zn需要解压缩的zip文件及路径,$to解压缩的目的地 */ function Unzip_File($zn, $to, $index = Array(-1)) { error_reporting(0); $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; $index[$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 $stat; } //取得压缩包内的文件信息 function get_List($zip_name) { $zip = @fopen($zip_name, 'rb'); IF (!$zip) { Return(0); } $centd = $this->ReadCentralDir($zip, $zip_name); @rewind($zip); @fseek($zip, $centd['offset']); For ($i = 0; $i < $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 $ret; } function ReadFileHeader($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); IF (substr($to, -1) != "/") $to .= "/"; IF (!@is_dir($to)) @mkdir($to, 0777); $pth = explode("/", dirname($header['filename'])); For ($i = 0; isset($pth[$i]); $i++) { IF (!$pth[$i]) continue; $pthss .= $pth[$i] . "/"; IF (!is_dir($to . $pthss)) @mkdir($to . $pthss, 0777); } IF (!($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 . $header['filename'] . '.gz', 'rb') or die("Cette archive est compress閑"); IF (!$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; } }

$PHPZip = new PhpZip();
        $zip_dir = $mail_path;
        $down_name = date("YmdHis", time());
        $res = $PHPZip->ZipDir($zip_dir, $down_name, 1);