OutgoingEventManager::getMetaInfo

private function getMetaInfo($headers): array
{

	$data = [];
	foreach (explode("n", $headers) as $k => $header)
	{
		if($k === 0 && preg_match('#HTTPS+ (d+)#', $header, $find))
		{
			$data['status'] = (int)$find[1];
			continue;
		}

		if(mb_strpos($header, ':') !== false)
		{
			[$headerName, $headerValue] = explode(':', $header, 2);
			if(mb_strtolower($headerName) === 'etag')
			{
				$data['etag'] = trim($headerValue);
			}
		}
	}

	return $data;
}