StorageController::getContentRange

private function getContentRange()
{
	$headers = $this->getAllHeaders();
	if(!$headers || !isset($headers['Content-Range']))
	{
		return false;
	}
	$contentRange = $headers['Content-Range'];
	if(!preg_match("/(\d+)-(\d+)\/(\d+)$/", $contentRange, $match))
	{
		return null;
	}
	return array($match[1], $match[2], $match[3]);
}