| Current Path : /storage/v11800/affypharma/public_html/wp-content/plugins/quttera-web-malware-scanner/ |
Linux v11800 5.3.0-1023-aws #25~18.04.1-Ubuntu SMP Fri Jun 5 15:19:18 UTC 2020 aarch64
|
| Current File : /storage/v11800/affypharma/public_html/wp-content/plugins/quttera-web-malware-scanner/qtrMimetype.php |
<?php
class CQtrMimetype
{
private $mimes;
public function __construct()
{
$this->mimes = array (
array("binary", "MZ", 0, ".exe"),
array("binary", "\x7f\x45\x4c\x46", 0, ".elf"),
array("document", "\x25\x50\x44\x46", 0, ".pdf"),
array("compress", "\x50\x4b", 0, ".zip"),
array("compress", "\x37\x7a", 0, ".7zip"),
array("compress", "\x42\x5a", 0, ".bz"),
array("compress", "\x1f\x8b", 0, ".gz"),
array("compress", "\x52\x61\x72\x21\x1a\x07\x01", 0, ".rar"),
array("compress", "MSCF", 0, ".cab"),
array("image", "\x89\x50\x4e\x47", 0, ".png"),
array("image", "GIF", 0, ".gif"),
array("image", "VIEW", 0, ".pm"),
array("image", "\xff\xd8\xff\xe0", 0, ".jpg"),
array("image", "\x6a\x50\x20\x20", 4, ".jp2"),
array("image", "\x4d\x4d\x00\x2a", 0, ".tif"),
array("image", "\x49\x49\x2a\x00", 0, ".tif"),
array("image", "BM", 0, ".bmp"),
array("image", "CDR9", 8, ".cdr"),
array("woff", "wOFF", 0, ".woff"),
array("woff", "wOF2", 0, ".wof2"),
array("audio", "OggS", 0, ".opus"),
array("video", "\x14\x66\x74\x79\x70", 3, ".mp4"),
array("video", "\x46\x4c\x56\x01", 0, ".flv"),
array("video", "\x46\x57\x53", 0, ".swf"),
array("video", "\x43\x57\x53", 0, ".swf"),
array("audio", "\x49\x44\x33", 0, ".mp3"),
array("audio", "\x66\x74\x79\x70", 4, ".m4a"),
array("helpfile", "\x49\x6e\x6e\x6f\x20\x53\x65\x74\x75\x70\x20\x55\x6e\x69\x6e\x73\x74\x61\x6c\x6c\x20\x4c\x6f\x67", 0, ".chm")
);
}
public function CheckMimeType( $filename )
{
$full_test = TRUE;
if( !$full_test )
{
/*
* room to keep old code
*/
foreach($this->mimes as $mime)
{
$pos = strpos($this->getHeader($filename), $mime[1]);
if ($pos === FALSE)
{
continue;
}
else if ($pos == $mime[2])
{
return $mime[0];
}
}
return "textfile";
}
$buf = $this->getHeader($filename);
/*
* Check if file contains ASCII characters.
*/
$char_count = preg_match_all("/[^\x01-\x7e]/", $buf);
if ($char_count < 5)
{
return "textfile";
}
else
{
/*
* Check for mime type since there are files contains chinese characters.
*/
foreach($this->mimes as $mime)
{
$pos = strpos($buf, $mime[1]);
if ($pos === FALSE)
{
continue;
}
else if ($pos == $mime[2])
{
return $mime[0];
}
}
/*
* if can't find via Mime type, check if first 32 bytes is non ASCII
*/
if ($char_count > 32)
{
return "binary";
}
else
{
return "textfile";
}
}
return "textfile";
}
private function getHeader( $filename )
{
$handle = fopen($filename, "rb");
$contents = fread($handle, 100);
fclose($handle);
return $contents;
}
}
?>