Server.Program.StunServer.ServerMethod C# (CSharp) Méthode

            private void ServerMethod()
            {
                // get Network Stream
                NetworkStream ns = m_client.GetStream();

                while (IsSocketConnected(m_client.Client))
                {
                    // data available?
                    if (ns.DataAvailable)
                    {
                        // 1. Receive STUN Message
                        int bytesRead = 0;

                        // read first 20 bytes (header)
                        byte[] stunHeader = new byte[20];
                        int read = ns.Read(stunHeader, 0, stunHeader.Length);

                        // parse length of message (3rd and 4th byte)
                        ushort stunMsgLength = NetworkByteArray.ReadUInt16(stunHeader, 2);

                        // Byte Array for request
                        Byte[] stunRequest = new Byte[20 + stunMsgLength];

                        // copy header to request
                        Array.Copy(stunHeader, 0, stunRequest, 0, stunHeader.Length);

                        // is there more to read? if yes get the rest of the message
                        if (stunMsgLength > 0)
                            bytesRead = ns.Read(stunRequest, 20, stunMsgLength);

                        // received entire message?
                        if (bytesRead != stunMsgLength)
                            Console.WriteLine("Error receiving Stun Message!");

                        // parse message
                        STUNMessage request = STUNMessage.Parse(stunRequest);

                        // contains Fingerprint?
                        if (request.ContainsFingerprint())
                            // validate Fingerprint, in error case discard message
                            if (!request.ValidateFingerprint())
                                return;


                        // 2. Process STUN Message
                        STUNMessage response = null;

                        // Binding Request?
                        if (request.StunMessageType == StunMessageType.BindingRequest)
                        {
                            // public Endpoint of Client
                            IPEndPoint remoteEndPoint = (IPEndPoint)m_client.Client.RemoteEndPoint;

                            // TransactionID of Request also for Response
                            Byte[] reqTransID = request.TransactionID;
                            response = new STUNMessage(StunMessageType.BindingSuccessResponse, reqTransID);

                            // add Attributes and create message
                            XorMappedAddressAttribute xmaa = XorMappedAddressAttribute.CreateXorMappedAddress(response.TransactionID, remoteEndPoint.Address.ToString(), (ushort)remoteEndPoint.Port);
                            response.AddAttribute(xmaa);
                            MappedAddressAttribute maa = MappedAddressAttribute.CreateMappedAddress(remoteEndPoint.Address.ToString(), (ushort)remoteEndPoint.Port);
                            response.AddAttribute(maa);

                            response.Create();
                        }

                        else if (request.StunMessageType == StunMessageType.BindingIndication)
                        {
                            // No response is generated for an indication (RFC 5389, 7.3.2.)
                        }

                        byte[] stunResponse = response.ToByteArray();

                        ns.Write(stunResponse, 0, stunResponse.Length);
                        ns.Flush();
                    }

                    // no data available
                    else
                        Thread.Sleep(10);
                }

            }
        }