function getSubClass($fileName, $diskFile)
{
//php4 can't list subclasses of class, so we need to add each one here
require_once "AudioFile.php";
require_once "ImageFile.php";
require_once "VideoFile.php";
require_once "ZipFile.php";
if (preg_match('/\\.([^.]{2,4}$)/', $fileName, $m)) {
$ext = strtolower($m[1]);
} else {
return "PlainFile";
}
if (ImageFile::validateExtension($ext)) {
return "ImageFile";
}
if (ZipFile::validateExtension($ext)) {
return "ZipFile";
}
$audioValid = AudioFile::validateExtension($ext);
$videoValid = VideoFile::validateExtension($ext);
if ($audioValid && $videoValid) {
exec(escapeshellcmd("file " . $diskFile), $out, $ret_error);
if (preg_match("/video/", $out[0]) || preg_match("/movie/", $out[0])) {
return "VideoFile";
} else {
return "AudioFile";
}
}
if ($audioValid) {
return "AudioFile";
}
if ($videoValid) {
return "VideoFile";
}
return "PlainFile";
}