static void Main()
{
Console.WriteLine("Example STUN Server");
ConfigureConsoleLog();
// STUN servers need two separater end points to listen on.
IPEndPoint primaryEndPoint = new IPEndPoint(IPAddress.Any, 3478);
IPEndPoint secondaryEndPoint = new IPEndPoint(IPAddress.Any, 3479);
// Create the two STUN listeners and wire up the STUN server.
STUNListener primarySTUNListener = new STUNListener(primaryEndPoint);
STUNListener secondarySTUNListener = new STUNListener(secondaryEndPoint);
STUNServer stunServer = new STUNServer(primaryEndPoint, primarySTUNListener.Send, secondaryEndPoint, secondarySTUNListener.Send);
primarySTUNListener.MessageReceived += stunServer.STUNPrimaryReceived;
secondarySTUNListener.MessageReceived += stunServer.STUNSecondaryReceived;
// Optional. Provides verbose logs of STUN server activity.
EnableVerboseLogs(stunServer);
Console.WriteLine("STUN server successfully initialised.");
Console.Write("press any key to exit...");
Console.Read();
primarySTUNListener.Close();
secondarySTUNListener.Close();
stunServer.Stop();
}
private void StartSTUNServer(IPEndPoint primaryEndPoint, IPEndPoint secondaryEndPoint, SIPTransport sipTransport)
{
STUNListener secondarySTUNListener = new STUNListener(secondaryEndPoint); // This end point is only for secondary STUN messages.
STUNSendMessageDelegate primarySend = (dst, buffer) => { m_sipTransport.SendRaw(m_sipTransport.GetDefaultSIPEndPoint(SIPProtocolsEnum.udp), new SIPEndPoint(dst), buffer); };
m_stunServer = new STUNServer(primaryEndPoint, primarySend, secondaryEndPoint, secondarySTUNListener.Send);
sipTransport.STUNRequestReceived += m_stunServer.STUNPrimaryReceived;
sipTransport.STUNRequestReceived += LogPrimarySTUNRequestReceived;
secondarySTUNListener.MessageReceived += m_stunServer.STUNSecondaryReceived;
secondarySTUNListener.MessageReceived += LogSecondarySTUNRequestReceived;
logger.Debug("STUN server successfully initialised.");
}
/// <summary>
/// Logs receives and sends by the STUN server.
/// </summary>
/// <param name="stunServer">The STUN server to enable verbose logs for.</param>
private static void EnableVerboseLogs(STUNServer stunServer)
{
stunServer.STUNPrimaryRequestInTraceEvent += (localEndPoint, fromEndPoint, stunMessage) =>
{
Log.LogDebug($"pri recv {localEndPoint}<-{fromEndPoint}: {stunMessage.ToString()}");
};
stunServer.STUNSecondaryRequestInTraceEvent += (localEndPoint, fromEndPoint, stunMessage) =>
{
Log.LogDebug($"sec recv {localEndPoint}<-{fromEndPoint}: {stunMessage.ToString()}");
};
stunServer.STUNPrimaryResponseOutTraceEvent += (localEndPoint, fromEndPoint, stunMessage) =>
{
Log.LogDebug($"pri send {localEndPoint}->{fromEndPoint}: {stunMessage.ToString()}");
};
stunServer.STUNSecondaryResponseOutTraceEvent += (localEndPoint, fromEndPoint, stunMessage) =>
{
Log.LogDebug($"sec send {localEndPoint}->{fromEndPoint}: {stunMessage.ToString()}");
};
}