Beispiel #1
0
        /// <summary>
        /// Deserializes the data present in the packet contents into data fields in the class.
        /// </summary>
        public override void Deserialize()
        {               //Initialize our packet list
            packets = new List <PacketBase>();

            //While there's more packets in the buffer..
            byte[] packetData = Data;
            int    idx        = 0;

            while (_size - idx > 0)
            {                   //Get the size of the following packet
                byte nextSize = packetData[idx];

                //Form the new packet
                ushort typeID = NetworkClient.getTypeID(packetData, idx + 1);

                //Transplant the data into a packet class
                PacketBase packet = _handler.getFactory().createPacket(_client, typeID, packetData, idx + 1, nextSize);

                packet._client  = _client;
                packet._handler = _handler;
                packet.Deserialize();

                //Add it to our list!
                packets.Add(packet);

                idx += nextSize + 1;
            }
        }
Beispiel #2
0
        /// <summary>
        /// Deserializes the data present in the packet contents into data fields in the class.
        /// </summary>
        public override void Deserialize()
        {               //Obtain our message number
            rNumber = Flip(_contentReader.ReadUInt16());

            //Obtain our message
            byte[] data   = Data;
            ushort typeID = NetworkClient.getTypeID(Data, 2);

            try
            {
                packet = _handler.getFactory().createPacket(_client, typeID, data, 2, data.Length - 2);

                packet._client  = _client;
                packet._handler = _handler;
                packet.Deserialize();
            }
            catch (Exception ex)
            {                   //There was an error while deserializing the packet, create a dummy packet
                packet          = new PacketDummy(typeID, data, 2, data.Length - 2);
                packet._client  = _client;
                packet._handler = _handler;

                Log.write(TLog.Exception, "Exception while deserializing reliable packet:\r\n{0}\r\n{1}", ex, packet.DataDump);
            }
        }
Beispiel #3
0
        /// <summary>
        /// Deserializes the data present in the packet contents into data fields in the class.
        /// </summary>
        public override void Deserialize()
        {               //Initialize our packet list
            packets = new List <PacketBase>();

            //While there's more packets in the buffer..
            byte[] packetData = Data;
            int    idx        = 0;

            while (_size - idx > 0)
            {                   //Get the size of the following packet
                byte nextSize = packetData[idx];

                //Form the new packet
                ushort typeID = NetworkClient.getTypeID(packetData, idx + 1);

                try
                {                       //Transplant the data into a packet class
                    PacketBase packet = _handler.getFactory().createPacket(_client, typeID, packetData, idx + 1, nextSize);

                    packet._client  = _client;
                    packet._handler = _handler;
                    packet.Deserialize();

                    //Add it to our list!
                    packets.Add(packet);
                }
                catch (Exception ex)
                {                       //There was an error while deserializing the packet, create a dummy packet
                    PacketBase packet = new PacketDummy(typeID, packetData, idx + 1, nextSize);

                    packet._client  = _client;
                    packet._handler = _handler;
                    packets.Add(packet);

                    Log.write(TLog.Exception, "Exception while deserializing box packet:\r\n{0}\r\n{1}", ex, packet.DataDump);
                }

                idx += nextSize + 1;
            }
        }
Beispiel #4
0
    {           /// <summary>
                /// Handles all reliable packets received from clients
                /// </summary>
        static public void Handle_DataPacketRcv(DataPacketRcv pkt, Client client)
        {       //Get the relevant stream
            Client.StreamState stream = client._streams[pkt.streamID];

            //Is the reliable number what we expected?
            if (pkt.rNumber > stream.C2S_Reliable)
            {                   //Report it!
                Log.write(TLog.Inane, "OOS Data Packet Stream[{0}]. {1} vs {2}", pkt.streamID, pkt.rNumber, stream.C2S_Reliable);
                client.reportOutOfSync(pkt, pkt.rNumber, pkt.streamID);
                return;
            }
            //A previously received reliable?
            else if (pkt.rNumber < stream.C2S_Reliable)
            {                   //Re-send the echo
                ReliableEcho resent = new ReliableEcho(pkt.streamID);
                resent.rNumber = (ushort)(stream.C2S_Reliable - 1);
                client.send(resent);
                return;
            }

            //Expect the next!
            stream.C2S_Reliable++;

            //Is there a pre-existing stream?
            if (stream.dataStreamBuffer == null)
            {                   //Let's be sensible
                //This commented part causes issues for some players on certain aliases, removing for now

                /*
                 * if (pkt.dataSize < client._C2S_UDPSize - client._CRCLength)
                 *      {
                 *              Log.write(TLog.Error, "Received data stream packet with invalid size {0}", pkt.dataSize);
                 *              return;
                 *      }
                 */
                if (pkt.dataSize > 20 * 1024 * 1024)
                {
                    Log.write(TLog.Error, "Received data stream packet with invalid size {0}", pkt.dataSize);
                    return;
                }

                //Create one of the appropriate size
                stream.dataStreamBuffer = new byte[pkt.dataSize];
                Array.Copy(pkt.data, 4, stream.dataStreamBuffer, 0, pkt.data.Length - 4);

                stream.dataStreamIndex = pkt.data.Length - 4;
            }
            else
            {                   //Copy in the data
                Array.Copy(pkt.data, 0, stream.dataStreamBuffer, stream.dataStreamIndex, pkt.data.Length);
                stream.dataStreamIndex += pkt.data.Length;

                //Do we have enough?
                if (stream.dataStreamIndex >= stream.dataStreamBuffer.Length)
                {                       //Create the packet!
                    ushort     typeID = NetworkClient.getTypeID(stream.dataStreamBuffer, 0);
                    PacketBase packet = null;

                    try
                    {
                        packet = client._handler.getFactory().createPacket(client, typeID, stream.dataStreamBuffer, 0,
                                                                           stream.dataStreamBuffer.Length);

                        packet._client  = client;
                        packet._handler = client._handler;
                        packet.Deserialize();
                    }
                    catch (Exception ex)
                    {                           //There was an error while deserializing the packet, create a dummy packet
                        packet = null;

                        Log.write(TLog.Exception, "Exception while deserializing datastream packet:\r\n{0}", ex);
                    }

                    if (packet != null)
                    {
                        client._handler.handlePacket(packet, client);
                    }

                    //Destroy the original stream
                    stream.dataStreamBuffer = null;
                    stream.dataStreamIndex  = 0;
                }
            }

            //If we have other packets in seqence waiting in store, use them too
            PacketBase unhandled;
            ushort     reliableNext = stream.C2S_Reliable;

            while (stream.oosReliable.TryGetValue(reliableNext, out unhandled))
            {                   //Handle it and go to next packet
                client._handler.handlePacket(unhandled, client);
                stream.oosReliable.Remove(reliableNext++);
            }

            //Prepare an echo for all received packets
            ReliableEcho echo = new ReliableEcho(pkt.streamID);

            echo.streamID = pkt.streamID;
            echo.rNumber  = (ushort)(stream.C2S_Reliable - 1);
            client.send(echo);
        }