php实现文件压缩

2016-06-08 17:32:49原创662

/*
－－－－－－－－－－－－－－－－－－－－－－－－－－
Copyright by T.muqiao(39号天堂桥)
本程序仅供学习讨论使用,在未通知作者作为任何商业用途
视为中华人民共和国不道德公民
联系方式:442536278@qq.com
－－－－－－－－－－－－－－－－－－－－－－－－－*/
if(!defined('IN_SELF')){
header('HTTP/1.1 404 NOT Found');
exit;
}
class ZipAllFloder{//压缩文件夹

var $datasec = array();
var $ctrl_dir = array();
var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
var $old_offset = 0;
var $dirs = array(".","");
var $dirlen = 0;

function IniVars(){//初始化变量
$this -> datasec = array();
$this -> ctrl_dir = array();
$this -> eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
$this -> old_offset = 0;
$this -> dirs = array(".","");
$this -> dirlen = 0;
}

function ZipFolder($dir,$zipfilename){//压缩一个文件夹
if(substr($dir,-1)!="//m.sbmmt.com/m/"){
$dir .= "//m.sbmmt.com/m/";
}
$this -> dirlen = strlen($dir);
$this -> AddFolderContent($dir);
$out = $this -> get_file();
$this -> IniVars();
$fp = fopen($zipfilename,"w");
fwrite($fp,$out,strlen($out));
fclose($fp);
}

function AddFolderContent($dir){//添加文件夹中文件内容
if(is_dir($dir)){
$folder = substr($dir,$this ->dirlen);
if(!in_array($folder,$this->dirs)){
$this->add_Dir($folder);
}
$handle = opendir($dir);
while($files = readdir($handle)){
if (($files==".")||($files=="..")) continue;
if(is_dir($dir.$files)){
$this->AddFolderContent($dir.$files."//m.sbmmt.com/m/");
}else{
$fp = fopen ($dir.$files,"r");
$content = @fread ($fp,filesize($dir.$files));
fclose ($fp);
$this->add_File($content,$folder.$files);
}
}
closedir($handle);
}
}
function get_file(){//获得压缩文件数据
$data = implode('', $this -> datasec);
$ctrldir = implode('', $this -> ctrl_dir);
return $data . $ctrldir . $this -> eof_ctrl_dir .
pack('v', sizeof($this -> ctrl_dir)).pack('v', sizeof($this -> ctrl_dir)).
pack('V', strlen($ctrldir)) . pack('V', strlen($data)) . "\x00\x00";
}

function add_dir($name){
$name = str_replace("\\", "//m.sbmmt.com/m/", $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;
}

function add_File($data, $name, $compact = 1){
$name = str_replace('\\', '//m.sbmmt.com/m/', $name);
$dtime = dechex($this->DosTime());
$hexdtime = '\x' . $dtime[6] . $dtime[7].'\x'.$dtime[4] . $dtime[5] . '\x' . $dtime[2] . $dtime[3].'\x'.$dtime[0].$dtime[1];
eval('$hexdtime = "' . $hexdtime . '";');
if($compact){
$fr = "\x50\x4b\x03\x04\x14\x00\x00\x00\x08\x00".$hexdtime;
}else{
$fr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00".$hexdtime;
}
$unc_len = strlen($data); $crc = crc32($data);
if($compact){
$zdata = gzcompress($data); $c_len = strlen($zdata);
$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
}else{
$zdata = $data;
}
$c_len=strlen($zdata);
$fr .= pack('V', $crc).pack('V', $c_len).pack('V', $unc_len);
$fr .= pack('v', strlen($name)).pack('v', 0).$name.$zdata;
$fr .= pack('V', $crc).pack('V', $c_len).pack('V', $unc_len);
$this -> datasec[] = $fr;
$new_offset = strlen(implode('', $this->datasec));
if($compact){
$cdrec = "\x50\x4b\x01\x02\x00\x00\x14\x00\x00\x00\x08\x00";
}else{
$cdrec = "\x50\x4b\x01\x02\x14\x00\x0a\x00\x00\x00\x00\x00";
}
$cdrec .= $hexdtime.pack('V', $crc).pack('V', $c_len).pack('V', $unc_len);
$cdrec .= pack('v', strlen($name) ).pack('v', 0 ).pack('v', 0 );
$cdrec .= pack('v', 0 ).pack('v', 0 ).pack('V', 32 );
$cdrec .= pack('V', $this -> old_offset );
$this -> old_offset = $new_offset;
$cdrec .= $name;
$this -> ctrl_dir[] = $cdrec;
return true;
}

function DosTime() {
$timearray = getdate();
if ($timearray['year'] < 1980) {
$timearray['year'] = 1980; $timearray['mon'] = 1;
$timearray['mday'] = 1; $timearray['hours'] = 0;
$timearray['minutes'] = 0; $timearray['seconds'] = 0;
}
return (($timearray['year']-1980)<<25)|($timearray['mon']<<21)|($timearray['mday']<<16)|($timearray['hours']<<11)|($timearray['minutes']<<5)|($timearray['seconds']>>1);
}
}

class UnCompress{
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 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; $index[$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) == '//m.sbmmt.com/m/'){
$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)!="//m.sbmmt.com/m/"){
$to.="//m.sbmmt.com/m/";
}
if(!@is_dir($to)){
@mkdir($to,0777);
}
$pth = explode("//m.sbmmt.com/m/",dirname($header['filename']));
for($i=0;isset($pth[$i]);$i++){
if(!$pth[$i]){
continue;
}
if(!is_dir($to.$pth[$i])){
@mkdir($to.$pth[$i],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.$header['filename'].'.gz','rb') or die("Cette archive est compress");
if(!$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;
}
}

class StatFolder{//统计文件夹内容
var $Num = 0;
var $Size = 0;
var $TypeNum = 0;
var $FolderNum = 0;
var $Type = array();
function __construct($folder){
$this -> ReadFolder($folder);
}
function StatFolder($folder){
$this -> ReadFolder($folder);
}
function ReadFolder($folder){
if(is_dir($folder)){
$handle = opendir($folder);
while($files = readdir($handle)){
if (($files==".")||($files=="..")) continue;
if(is_dir($folder."//m.sbmmt.com/m/".$files)){
$this ->FolderNum++;
$this ->ReadFolder($folder."//m.sbmmt.com/m/".$files);
}else{
$this ->Num++;
$type = fileext($files);
if(!in_array($type,$this ->Type)){
$this ->Type[] = $type;
$this ->TypeNum++;
}
$size = filesize($folder."//m.sbmmt.com/m/".$files);
$this->Size +=$size;
clearstatcache();
}
}
closedir($handle);
}
}
function GetFileNum(){
return $this -> Num;
}
function GetTotalSize(){
$switch = $this->Size/1024;
if($switch<1024){
$return = explode(".",$switch);
if($return[0]==0){
return $this->Size."　bytes";
}
return $return[0].".".substr($return[1],0,3)."　Kbytes";
}else{
$switch /=1024;
$return = explode(".",$switch);
return $return[0].".".substr($return[1],0,3)."　Mbytes";
}
}
function GetTypeNum(){
return $this -> TypeNum;
}
function GetFolderNum(){
return $this -> FolderNum;
}
}

function matchpath($reference,$testpath){//检查$testpath是否数学上的属于$reference参照路径
$reference = explode("//m.sbmmt.com/m/",$reference);
$testpath = explode("//m.sbmmt.com/m/",$testpath);
$num1 = count($reference);
$num2 = count($testpath);
if($num1 < $num2){
return false;
}
$degree = 0;
for($i=0;$i<$num2;$i++){
if(strtolower($testpath[$i])==strtolower($reference[$i])){
$degree++;
continue;
}else{
return false;
break;
}
}
if($degree==$num2){
return true;
}
}

function checkcore($path){//检查核心文件是否包含其中
global $T_corefile;
for($i=0;$p=$T_corefile[$i];$i++){
if(matchpath($p,$path)){
return true;
break;
}
}
}

function copypath($source,$target,$uncover=true){//拷贝整个目录 默认不允许覆盖
global $T_lang;
if(is_dir($target)){
if($uncover){
$errors .= str_replace("--replace--",$target,$T_lang['func'][0]);
$gocover = false;
}else{
$gocover = true;
}
}else{
if(matchpath($target,$source)){//检测目录$source是否包含于$target
$errors .= str_replace("--replace--",$source,$T_lang['func'][1]);
$gocover = false;
}else{
if(@mkdir($target,0777)){
$gocover = true;
}else{
$errors .= str_replace("--replace--",$target,$T_lang['func'][2]);
$gocover = false;
}
}
}
if($gocover){
$handle = opendir($source);
while($file = readdir($handle)){
clearstatcache();
if(substr($file,-1)=="."||substr($file,-2)=="..") continue;
if(is_dir($source."//m.sbmmt.com/m/".$file)){
$errors .= copypath($source."//m.sbmmt.com/m/".$file,$target."//m.sbmmt.com/m/".$file,$uncover);
}else{
$gocopy = true;
if(file_exists($target."//m.sbmmt.com/m/".$file)){
if($uncover){
$gocopy = false;
}else{
if(@unlink($target."//m.sbmmt.com/m/".$file)){
$gocopy = true;
}else{
$gocopy = false;
}
}
}
if($gocopy){
if(@copy($source."//m.sbmmt.com/m/".$file,$target."//m.sbmmt.com/m/".$file)){
$errors .= "";
}else{
$errors .= str_replace("--replace--",$source."//m.sbmmt.com/m/".$file,$T_lang['func'][3]);
}
}else{
$errors .= str_replace("--replace--",$target."//m.sbmmt.com/m/".$file,$T_lang['func'][4]);
}
}
}
closedir($handle);
}
if($errors){
return $errors;
}else{
return "";
}
}

function movepath($source,$target,$uncover=true){//移动整个目录 默认不允许覆盖
global $T_lang;
if(is_dir($target)){
if($uncover){
$errors .= str_replace("--replace--",$target,$T_lang['func'][0]);
$gocover = false;
}else{
$gocover = true;
}
}else{
if(matchpath($target,$source)){//检测目录$source是否包含于$target
$errors .= str_replace("--replace--",$source,$T_lang['func'][5]);
$gocover = false;
}else{
if(@mkdir($target,0777)){
$gocover = true;
}else{
$errors .= str_replace("--replace--",$target,$T_lang['func'][2]);
$gocover = false;
}
}
}
if($gocover){
$handle = opendir($source);
while($file = readdir($handle)){
clearstatcache();
if(substr($file,-1)=="."||substr($file,-2)=="..") continue;
if(!is_dir($source."//m.sbmmt.com/m/".$file)){
$gocopy = true;
if(file_exists($target."//m.sbmmt.com/m/".$file)){
if($uncover){
$gocopy = false;
}else{
$gocopy = true;
}
}
if($gocopy){
if(@copy($source."//m.sbmmt.com/m/".$file,$target."//m.sbmmt.com/m/".$file)){
unlink($source."//m.sbmmt.com/m/".$file);
}else{
$errors .= str_replace("--replace--",$source."//m.sbmmt.com/m/".$file,$T_lang['func'][3]);
}
}else{
$errors .= str_replace("--replace--",$target."//m.sbmmt.com/m/".$file,$T_lang['func'][6]);
}
}else{
$errors .= movepath($source."//m.sbmmt.com/m/".$file,$target."//m.sbmmt.com/m/".$file,$uncover);
}
}
closedir($handle);
}
if($errors){
return $errors;
}else{
if(@rmdir($source."//m.sbmmt.com/m/".$file)){
return "";
}else{
$errors .= str_replace("--replace--",$source,$T_lang['func'][7]);
}
}
}

function delpath($source){//删除整个目录
global $T_lang,$T_Recycled;
$handle = opendir($source);
while($file = readdir($handle)){
clearstatcache();
if(substr($file,-1)=="."||substr($file,-2)=="..") continue;
if(is_dir($source."//m.sbmmt.com/m/".$file)){
$errors .= delpath($source."//m.sbmmt.com/m/".$file);
}else{
if(@unlink($source."//m.sbmmt.com/m/".$file)){
}else{
$errors .= str_replace("--replace--",$source,$T_lang['func'][7]);
}
}
}
closedir($handle);
if($errors){
$errors .= str_replace("--replace--",$source,$T_lang['func'][8]);
return $errors;
}else{
if($source==$T_Recycled){//清空回收站时 这个判断条件用的上
return "";
}else{
if(@rmdir($source)){
return "";
}else{
$errors .= str_replace("--replace--",$source,$T_lang['func'][8]);
return $errors;
}
}
}
}

function limitname($title,$limitlength =13){//限制标题长度
$length = strlen($title);
if($length>$limitlength){
$gbk = 0;
for($i=0;$i<$limitlength-1;$i++){
$temp = substr($title,$i,1);
if(ord($temp)>127) $gbk +=1;
}
if($gbk%2){
$title = substr($title,0,$limitlength)."...";
}else{
$title = substr($title,0,$limitlength-1)."...";
}
}
return $title;
}

function fileext($filename){
return trim(substr(strrchr($filename, '.'), 1));
}

function checkpath($path){//检查path合法和合格性
$path = eregi_replace("root",".",$path);
if($path=="."||ereg("^(\.\/).*[^\.\/]$",$path)){
if(eregi("\.\/(.*)?(\.\.\/)+.",$path)){
return false;
}else{
if(is_dir($path)){
return $path;
}else{
return false;
}
}
}else{
return false;
}
}

function historypath(){//历史路径
global $path,$T_rlength,$T_images,$T_main,$T_Recycled;
$ruote = explode("//m.sbmmt.com/m/",$path);
$num = count($ruote);
if($num<=1){
return false;
}else{
if($num-1>$T_rlength){
$i = $num-$T_rlength;
}else{
$i = 1;
}
for(;$i<=$num-1;$i++){
$rs .= " $single = ".";
for($j=1;$j<=$i;$j++){
$single .= "//m.sbmmt.com/m/".$ruote[$j];
}
$rs .= urlencode($single)."//m.sbmmt.com/m/article/\"> if($single==$T_Recycled){
$rs .= $T_images."/Recycled.gif";
}else{
$rs .= $T_images."/folder.gif";
}
$rs .= "//m.sbmmt.com/m/article/\" height=\"50\" width=\"50\" align=absmiddle>".limitname($ruote[$i])."";
}
return $rs;
}
}
?>

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