DocumentHandler::recoverExtensionInName

protected function recoverExtensionInName(&$fileName, $mimeType)
{
	$originalExtension = TypeFile::getExtensionByMimeType($mimeType);
	$newExtension = mb_strtolower(trim(getFileExtension($fileName), '.'));
	if ($originalExtension != $newExtension)
	{
		$fileName = getFileNameWithoutExtension($fileName) . '.' . $originalExtension;

		return true;
	}

	return false;
}