public virtual void OnAllocateResponse(MessageSTUN message)
{
lock (_lock)
{
ip2ChannelNumber.Clear();
channelNumber2Peer.Clear();
}
GenerateChannelNumberForAllPeers();
RequestRefreshAllBindingChannelLifeTime();
StartRefreshTimer();
StartCheckingConnectionTimer();
STUNAddress sa = (STUNAddress)message.Get(STUNAttribute.XorRelayedAddress);
//OnServerDataReceived?.BeginInvoke(this, new STUN_ServerDataReceivedEventArgs((int)responseChannelNumber, new ArraySegment<byte>(appData)), EndAsyncEvent, null);
OnAllocateResponseEvent?.Invoke(this, new NATP_SignalingEventArgs(true, "", new IPEndPoint(new IPAddress(sa.address), sa.port)));
}
public virtual void OnResponse(byte[] buffer, long offset, long size)
{
byte[] appData;
MessageSTUN message = new MessageSTUN(buffer, offset, size, out appData);
if (!message.IsSTUNMessage) // Normal Data Received
{
string ip;
uint responseChannelNumber;
if (message.isIndicateData) // sender's ip and channel bind's ip are same, but port are different, so stun server send indicate data
{
if (!autoUpdatePort)
{
// deal with it
return;
}
if (ChannelNumberMode)
{
AddPeer(message.indicateAddress);
RequestChannelBind(message.indicateAddress);
return;
}
else
{
ip = message.indicateAddress.ToString();
if (!ip2ChannelNumber.ContainsKey(ip))
{
AddPeer(message.indicateAddress);
return;
}
}
responseChannelNumber = ip2ChannelNumber[ip];
}
else
{
responseChannelNumber = message.responseChannelNumber;
}
if (IsClientHeartbeat(appData))
{
SendHeartBeatToClient(responseChannelNumber);
}
else if (IsClientDisconnectHeartbeat(appData))
{
lock (_lockHeartbeat)
{
peerHeartbeat.Remove(responseChannelNumber);
}
DisconnectClient(responseChannelNumber);
}
else
{
OnServerDataReceived?.Invoke(this, new NATP_STUN_ServerDataReceivedEventArgs((int)responseChannelNumber, new ArraySegment <byte>(appData)));
//OnServerDataReceived?.BeginInvoke(this, new STUN_ServerDataReceivedEventArgs((int)responseChannelNumber, new ArraySegment<byte>(appData)), EndAsyncEvent, null);
}
}
else // Is STUN Server response
{
var newNonce = (byte[])message.Get(STUNAttribute.Nonce);
if (newNonce != null)
{
nonce = newNonce;
}
switch (message.method)
{
case STUNMethod.AllocateResponse:
OnAllocateResponse(message);
break;
case STUNMethod.BindingResponse:
OnBindingResponse(message);
break;
case STUNMethod.ChannelBindError:
OnChannelBindError(message);
break;
case STUNMethod.ChannelBindResponse:
OnChannelBindResponse(message);
break;
case STUNMethod.AllocateError:
OnAllocateError(message);
break;
case STUNMethod.RefreshResponse:
OnRefreshResponse(message);
break;
case STUNMethod.RefereshError:
OnRefreshErrorResponse(message);
break;
case STUNMethod.CreatePermissionResponse:
OnCreatePermissionResponse(message);
break;
}
}
}
