static void OnReceivedServerResponse(DiscoveryInfo info)
{
// check if data is valid
if (!IsDataFromServerValid(info))
{
return;
}
// invoke event
onReceivedServerResponse(info);
}
void OnReceivedServerResponse(DiscoveryInfo info)
{
// Validation is our capacity to decode the message, if the payload is so different we cant parse it we silently dump it!
NetworkDiscoveryUtility.RunSafe(() => {
info.unpackedData = (GameBroadcastPacket)ByteStreamer.StreamFromBytes(info.packetData);
}, false);
if (info.unpackedData != null)
{
onReceivedServerResponse(info);
}
}
static void OnReceivedBroadcast(DiscoveryInfo info)
{
if (info.KeyValuePairs.ContainsKey(kSignatureKey) && info.KeyValuePairs[kSignatureKey] == GetSignature())
{
// signature matches
// send response
Profiler.BeginSample("Send response");
byte[] bytes = ConvertDictionaryToByteArray(m_responseData);
m_serverUdpCl.Send(bytes, bytes.Length, info.EndPoint);
Profiler.EndSample();
}
}
void ServerOnClientBroadcast(DiscoveryInfo info)
{
// This is the handshake, objective is not security just sheer improbability
if (handshakeData.Length == info.packetData.Length &&
handshakeData.SequenceEqual(info.packetData))
{
// signature matches
// send response
Profiler.BeginSample("Send response");
serverUdpClient.Send(serverBroadcastPacket, serverBroadcastPacket.Length, info.EndPoint);
Profiler.EndSample();
}
}
void Connect(DiscoveryInfo info)
{
if (NetworkManager.singleton == null ||
Transport.activeTransport == null)
{
return;
}
if (!(Transport.activeTransport is TelepathyTransport))
{
Debug.LogErrorFormat("Only {0} is supported", typeof(TelepathyTransport));
return;
}
// assign address and port
NetworkManager.singleton.networkAddress = info.EndPoint.Address.ToString();
((TelepathyTransport)Transport.activeTransport).port = (ushort)info.unpackedData.port;
NetworkManager.singleton.StartClient();
}
void OnDiscoveredServer(DiscoveryInfo info)
{
// Note that you can check the versioning to decide if you can connect to the server or not using this method
m_discoveredServers[info.unpackedData.serverGUID] = info;
}
public static bool IsDataFromServerValid(DiscoveryInfo data)
{
// data must contain signature which matches, and port number
return(data.KeyValuePairs.ContainsKey(kSignatureKey) && data.KeyValuePairs[kSignatureKey] == GetSignature() &&
data.KeyValuePairs.ContainsKey(kPortKey));
}
