मैं इस तरह कुछ पर काम कर रहा हूं और यह PHP के लिए काम करना चाहिए। आपके पास एक लिखने योग्य
टीएमपी फ़ोल्डर होना चाहिए और PHP फ़ाइल को
example.php नाम दिया जाना चाहिए!
<?php
function gzdecode($data) {
$len = strlen($data);
if ($len < 18 || strcmp(substr($data,0,2),"\x1f\x8b")) {
echo "FILE NOT GZIP FORMAT";
return null; // Not GZIP format (See RFC 1952)
}
$method = ord(substr($data,2,1)); // Compression method
$flags = ord(substr($data,3,1)); // Flags
if ($flags & 31 != $flags) {
// Reserved bits are set -- NOT ALLOWED by RFC 1952
echo "RESERVED BITS ARE SET. VERY BAD";
return null;
}
// NOTE: $mtime may be negative (PHP integer limitations)
$mtime = unpack("V", substr($data,4,4));
$mtime = $mtime[1];
$xfl = substr($data,8,1);
$os = substr($data,8,1);
$headerlen = 10;
$extralen = 0;
$extra = "";
if ($flags & 4) {
// 2-byte length prefixed EXTRA data in header
if ($len - $headerlen - 2 < 8) {
return false; // Invalid format
echo "INVALID FORMAT";
}
$extralen = unpack("v",substr($data,8,2));
$extralen = $extralen[1];
if ($len - $headerlen - 2 - $extralen < 8) {
return false; // Invalid format
echo "INVALID FORMAT";
}
$extra = substr($data,10,$extralen);
$headerlen += 2 + $extralen;
}
$filenamelen = 0;
$filename = "";
if ($flags & 8) {
// C-style string file NAME data in header
if ($len - $headerlen - 1 < 8) {
return false; // Invalid format
echo "INVALID FORMAT";
}
$filenamelen = strpos(substr($data,8+$extralen),chr(0));
if ($filenamelen === false || $len - $headerlen - $filenamelen - 1 < 8) {
return false; // Invalid format
echo "INVALID FORMAT";
}
$filename = substr($data,$headerlen,$filenamelen);
$headerlen += $filenamelen + 1;
}
$commentlen = 0;
$comment = "";
if ($flags & 16) {
// C-style string COMMENT data in header
if ($len - $headerlen - 1 < 8) {
return false; // Invalid format
echo "INVALID FORMAT";
}
$commentlen = strpos(substr($data,8+$extralen+$filenamelen),chr(0));
if ($commentlen === false || $len - $headerlen - $commentlen - 1 < 8) {
return false; // Invalid header format
echo "INVALID FORMAT";
}
$comment = substr($data,$headerlen,$commentlen);
$headerlen += $commentlen + 1;
}
$headercrc = "";
if ($flags & 1) {
// 2-bytes (lowest order) of CRC32 on header present
if ($len - $headerlen - 2 < 8) {
return false; // Invalid format
echo "INVALID FORMAT";
}
$calccrc = crc32(substr($data,0,$headerlen)) & 0xffff;
$headercrc = unpack("v", substr($data,$headerlen,2));
$headercrc = $headercrc[1];
if ($headercrc != $calccrc) {
echo "BAD CRC";
return false; // Bad header CRC
}
$headerlen += 2;
}
// GZIP FOOTER - These be negative due to PHP's limitations
$datacrc = unpack("V",substr($data,-8,4));
$datacrc = $datacrc[1];
$isize = unpack("V",substr($data,-4));
$isize = $isize[1];
// Perform the decompression:
$bodylen = $len-$headerlen-8;
if ($bodylen < 1) {
// This should never happen - IMPLEMENTATION BUG!
echo "BIG OOPS";
return null;
}
$body = substr($data,$headerlen,$bodylen);
$data = "";
if ($bodylen > 0) {
switch ($method) {
case 8:
// Currently the only supported compression method:
$data = gzinflate($body);
break;
default:
// Unknown compression method
echo "UNKNOWN COMPRESSION METHOD";
return false;
}
} else {
// I'm not sure if zero-byte body content is allowed.
// Allow it for now... Do nothing...
echo "ITS EMPTY";
}
// Verifiy decompressed size and CRC32:
// NOTE: This may fail with large data sizes depending on how
// PHP's integer limitations affect strlen() since $isize
// may be negative for large sizes.
if ($isize != strlen($data) || crc32($data) != $datacrc) {
// Bad format! Length or CRC doesn't match!
echo "LENGTH OR CRC DO NOT MATCH";
return false;
}
return $data;
}
echo "<html><head></head><body>";
if (empty($_REQUEST['upload'])) {
echo <<<_END
<form enctype="multipart/form-data" action="example.php" method="POST">
<input type="hidden" name="MAX_FILE_SIZE" value="100000" />
<table>
<th>
<input name="uploadedfile" type="file" />
</th>
<tr>
<td><input type="submit" name="upload" value="Convert File" /></td>
</tr>
</table>
</form>
_END;
}
if (!empty($_REQUEST['upload'])) {
$file = "tmp/" . $_FILES['uploadedfile']['name'];
$orgfile = $_FILES['uploadedfile']['name'];
$name = str_replace(".xfdl", "", $orgfile);
$convertedfile = "tmp/" . $name . ".xml";
$compressedfile = "tmp/" . $name . ".gz";
$finalfile = "tmp/" . $name . "new.xfdl";
$target_path = "tmp/";
$target_path = $target_path . basename($_FILES['uploadedfile']['name']);
if (move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
} else {
echo "There was an error uploading the file, please try again!";
}
$firstline = "application/vnd.xfdl; content-encoding=\"base64-gzip\"\n";
$data = file($file);
$data = array_slice($data, 1);
$raw = implode($data);
$decoded = base64_decode($raw);
$decompressed = gzdecode($decoded);
$compressed = gzencode($decompressed);
$encoded = base64_encode($compressed);
$decoded2 = base64_decode($encoded);
$decompressed2 = gzdecode($decoded2);
$header = bin2hex(substr($decoded, 0, 10));
$tail = bin2hex(substr($decoded, -8));
$header2 = bin2hex(substr($compressed, 0, 10));
$tail2 = bin2hex(substr($compressed, -8));
$header3 = bin2hex(substr($decoded2, 0, 10));
$tail3 = bin2hex(substr($decoded2, -8));
$filehandle = fopen($compressedfile, 'w');
fwrite($filehandle, $decoded);
fclose($filehandle);
$filehandle = fopen($convertedfile, 'w');
fwrite($filehandle, $decompressed);
fclose($filehandle);
$filehandle = fopen($finalfile, 'w');
fwrite($filehandle, $firstline);
fwrite($filehandle, $encoded);
fclose($filehandle);
echo "
"; echo "<table style='text-align:center' >";
echo "<tr><th>Stage 1</th>"; echo
"<th>Stage 2</th>"; echo "<th>Stage
3</th></tr>"; echo "<tr><td>RAW DATA
-></td><td>DECODED DATA
-></td><td>UNCOMPRESSED DATA
-></td></tr>"; echo "<tr><td>LENGTH:
".strlen($raw)."</td>"; echo "<td>LENGTH:
".strlen($decoded)."</td>"; echo "<td>LENGTH:
".strlen($decompressed)."</td></tr>"; echo
"<tr><td>ORIGINAL</td><td>GZIP
HEADER:".$header."</td><td>XML CONVERTED</td></tr>"; echo
"<tr><td></td><td>GZIP
TAIL:".$tail."</td><td></td></tr>"; echo
"<tr><td>
</td>"; echo "<td>
</td>"; echo "<td>
</td></tr>"; echo "<tr><th>Stage
6</th>"; echo "<th>Stage 5</th>"; echo
"<th>Stage 4</th></tr>"; echo
"<tr><td>ENCODED DATA
<-</td><td>COMPRESSED DATA
<-</td><td>UNCOMPRESSED DATA
<-</td></tr>"; echo "<tr><td>LENGTH:
".strlen($encoded)."</td>"; echo "<td>LENGTH:
".strlen($compressed)."</td>"; echo "<td>LENGTH:
".strlen($decompressed)."</td></tr>"; echo
"<tr><td></td><td>GZIP
HEADER:".$header2."</td><td></td></tr>";
echo "<tr><td></td><td>GZIP
TAIL:".$tail2."</td><td></td></tr>"; echo
"<tr><td>FINAL
FILE</td><td>RE-COMPRESSED
FILE</td><td></td></tr>"; echo
"<tr><td>
</td>"; echo "<td>
</td>"; echo "<td>
</td></tr>"; echo "</table>"; echo
"
";
}
echo "</body></html>";
?>