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Online File extraction using php

Source: Internet
Author: User
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<? Php
// Verify the password
$ Password = "123456 ";
?>
<Html> <Title> Faisun_unzip-pure space-www.softpure.com </title>
<Style type = "text/css"> <! --
Body, td {
Font-size: 14px;
Color: #000000;
}
A {
Color: #000066;
Text-decoration: none;
}
A: hover {
Color: # FF6600;
Text-decoration: underline;
}
-->
</Style>
</Head>

<Body>
<Form name = "myform" method = "post" action = "<? =$ _ SERVER [PHP_SELF];?> "Enctype =" multipart/form-data "onSubmit =" return check_uploadObject (this); ">
<?
If (! $ _ REQUEST ["myaction"]):
?>

<Script language = "javascript">
Function check_uploadObject (form ){
If (form. password. value = ''){
Alert ('enter your password .');
Return false;
}
Return true;
}
</Script>

<Table width = "100%" border = "0" cellspacing = "0" cellpadding = "4">
<Tr>
<Td height = "40" colspan = "2" style = "color: # FF9900 "> <p> <font color =" # FF0000 "> faisun_unzip-decompress the ZIP file program V1.0 online </font> </p>
<P> reprinted, please note: by <a href = "http://www.softpure.com/" target = "_ blank"> pure space </a> (<a href = "http://www.softpure.com/" target = "_ blank"> http://www.softpure.com </a>) supplied by: faisun (<a href = "mailto: faisun@sina.com"> faisun@sina.com </a> ). </p>
<P> usage: Upload the zip file to the same directory of the file through FTP, select the zip file, or click browse... to upload the zip file. </P>
<P> the extracted results retain the original directory structure. </P>
<P> </td>
</Tr>
<Tr>
<Td width = "11%"> select ZIP file: </td>
<Td width = "89%"> <select name = "zipfile">
<Option value = "" selected>-select-</option>
<?
$ Fdir = opendir ('./');
While ($ file = readdir ($ fdir )){
If (! Is_file ($ file) continue;
If (preg_match ('/. zip $/mis', $ file )){
Echo "<option value = '$ file'> $ file </option> rn ";
}
}
?>
</Select> </td>
</Tr>
<Tr>
<Td width = "11%" nowrap> or upload a file: </td>
<Td width = "89%"> <input name = "upfile" type = "file" id = "upfile" size = "20"> </td>
</Tr>
<Tr>
<Td> decompress the package to the directory: </td>
<Td> <input name = "todir" type = "text" id = "todir" value = "_ unzipfiles _" size = "15">
(Leave this directory empty and you must have the write permission) </td>
</Tr>
<Tr>
<Td> Verification password: </td>
<Td> <input name = "password" type = "password" id = "password" size = "15">
(Password set in the source file) </td>
</Tr>
<Tr>
<Td> <input name = "myaction" type = "hidden" id = "myaction" value = "dounzip"> </td>
<Td> <input type = "submit" name = "Submit" value = "decompress"> </td>
</Tr>
</Table>

<?

Elseif ($ _ REQUEST ["myaction"] = "dounzip "):


Class zip
{

Var $ total_files = 0;
Var $ total_folders = 0;

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] & #124; & #124; $ 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) & #124; & #124; 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/kernel/vflag/vcompression/vmtime/vmdate/Vcrc/kernel/Vsize/kernel/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) & #124; ord ($ byte );
If ($ bytes = 0x504b0506 or $ bytes = 0x2e706870504b0506) {$ pos ++; break;} $ pos ++;
}

$ Fdata = fread ($ zip, 18 );

$ Data = @ unpack ('vdisk/vdisk_start/vdisk_entries/ventries/Vsize/Voffset/vcomment_size ', $ fdata );

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 ($ to = './') $ to = '';
$ Pth = explode ("/", $ to. $ header ['filename']);
$ Mydir = '';
For ($ I = 0; $ I <count ($ pth)-1; $ I ++ ){
If (! $ Pth [$ I]) continue;
$ Mydir. = $ pth [$ I]. "/";
If ((! Is_dir ($ mydir) & @ mkdir ($ mydir, 0777) & #124; & #124; ($ mydir = $. $ header ['filename'] & #124; & #124; ($ mydir = $ to & $ this-> total_folders = 0 )) & is_dir ($ mydir ))){
@ Chmod ($ mydir, 0777 );
$ This-> total_folders ++;
Echo "<input name = 'dfile [] 'Type = 'checkbox' value = '$ mydir' checked> <a href =' $ mydir' target = '_ blank'> directory: $ mydir </a> <br> ";
}
}

If (strrchr ($ header ['filename'], '/') = '/') return;

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.w.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.w.header='filename'{.'.gz ', 'rb') or die ("Cette archive est compress

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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