public void Decode(NetIncomingMessage im)
{
this.BlockID = im.ReadByte();
this.X = im.ReadInt16();
this.Y = im.ReadInt16();
this.Z = im.ReadByte();
}
private static void HandleMessage(NetIncomingMessage inc, NetServer server)
{
switch (inc.MessageType)
{
case NetIncomingMessageType.ConnectionApproval: //If ConnectionApproval request
if (inc.ReadByte() == (byte) PacketTypes.Headers.Login)
{
string username = inc.ReadString();
Console.WriteLine("New Login Request from: {0}", username);
if (username.Length > 1 & Players.Values.All(c => c.Name != username) &
!_badwordList.Contains(username, StringComparer.OrdinalIgnoreCase))
{
inc.SenderConnection.Approve();
NetOutgoingMessage connectedMessage = server.CreateMessage();
Thread.Sleep(500);
Console.WriteLine("Sending a ack to {0}", username);
connectedMessage.Write((byte) PacketTypes.Headers.LoggedIn);
connectedMessage.Write(true);
server.SendMessage(connectedMessage, inc.SenderConnection, NetDeliveryMethod.ReliableOrdered);
}
else
{
inc.SenderConnection.Deny("Bad Username");
}
}
break;
case NetIncomingMessageType.Data:
byte packetheader = inc.ReadByte();
HandleProtocol(inc, packetheader, server);
break;
case NetIncomingMessageType.StatusChanged:
Console.WriteLine(inc.SenderConnection + " status changed. " + inc.SenderConnection.Status);
if (inc.SenderConnection.Status == NetConnectionStatus.Disconnected)
{
Console.WriteLine("Player: {0} has disconnected",
Players[inc.SenderConnection.RemoteUniqueIdentifier].Name);
Players.Remove(inc.SenderConnection.RemoteUniqueIdentifier);
}
break;
case NetIncomingMessageType.DiscoveryRequest:
NetOutgoingMessage discovermsg = server.CreateMessage();
discovermsg.Write("Hey I just met you, I'm a server, so address me maybe");
Console.WriteLine(@"Auto Discovery Request");
server.SendDiscoveryResponse(discovermsg, inc.SenderEndPoint);
break;
case NetIncomingMessageType.DebugMessage:
case NetIncomingMessageType.ErrorMessage:
case NetIncomingMessageType.WarningMessage:
case NetIncomingMessageType.VerboseDebugMessage:
Console.WriteLine(@"---Debug---");
Console.WriteLine(inc.ReadString());
Console.WriteLine(@"---End---");
break;
}
}
public override void Decode(NetIncomingMessage msg)
{
findSixes = msg.ReadBoolean();
nPosition = new HashSet<int>();
for (int i = msg.ReadByte(); i > 0; i--)
nPosition.Add(msg.ReadByte());
}
public void readData(NetIncomingMessage msg)
{
while (msg.PositionInBytes < msg.LengthBytes)
{
Console.WriteLine("Data in buffer : " + (msg.LengthBytes - msg.PositionInBytes));
PacketTypes pa = (PacketTypes)msg.ReadByte();
Console.WriteLine(pa);
switch (pa)
{
case PacketTypes.ClientInput:
InputObject input = new InputObject();
InputParser.readBytes(msg, ref input);
Player p = Players[msg.SenderConnection.RemoteUniqueIdentifier];
p.Input = input;
break;
default:
Console.WriteLine("overflow : " + msg.ReadByte());
break;
}
}
}
public void Decode(NetIncomingMessage im)
{
this.Username = im.ReadString();
this.ID = im.ReadByte();
this.Me = im.ReadBoolean();
this.Color = new Color(im.ReadByte(), im.ReadByte(), im.ReadByte());
}
public static void readBytes(NetIncomingMessage data, ref InputObject io)
{
data.ReadByte();
Console.WriteLine(io.HorizontalAxis = data.ReadFloat());
Console.WriteLine(io.VerticalAxis = data.ReadFloat());
Console.WriteLine(io.AmingAngle = data.ReadFloat());
Console.WriteLine(io.Buttons = data.ReadByte());
}
public static PlayerInformation Read(NetIncomingMessage packet)
{
Byte slot = packet.ReadByte();
TeamType team = (TeamType)packet.ReadByte();
String callsign = packet.ReadString();
String tag = packet.ReadString();
return new PlayerInformation(slot, callsign, tag, team);
}
/// <summary>
/// Handles an incoming entity component message
/// </summary>
/// <param name="message">Raw network message</param>
/// <returns>An IncomingEntityComponentMessage object</returns>
public IncomingEntityComponentMessage HandleEntityComponentNetworkMessage(NetIncomingMessage message)
{
var componentFamily = (ComponentFamily) message.ReadByte();
var messageParams = new List<object>();
while (message.Position < message.LengthBits)
{
switch ((NetworkDataType) message.ReadByte())
{
case NetworkDataType.d_enum:
messageParams.Add(message.ReadInt32());
break;
case NetworkDataType.d_bool:
messageParams.Add(message.ReadBoolean());
break;
case NetworkDataType.d_byte:
messageParams.Add(message.ReadByte());
break;
case NetworkDataType.d_sbyte:
messageParams.Add(message.ReadSByte());
break;
case NetworkDataType.d_ushort:
messageParams.Add(message.ReadUInt16());
break;
case NetworkDataType.d_short:
messageParams.Add(message.ReadInt16());
break;
case NetworkDataType.d_int:
messageParams.Add(message.ReadInt32());
break;
case NetworkDataType.d_uint:
messageParams.Add(message.ReadUInt32());
break;
case NetworkDataType.d_ulong:
messageParams.Add(message.ReadUInt64());
break;
case NetworkDataType.d_long:
messageParams.Add(message.ReadInt64());
break;
case NetworkDataType.d_float:
messageParams.Add(message.ReadFloat());
break;
case NetworkDataType.d_double:
messageParams.Add(message.ReadDouble());
break;
case NetworkDataType.d_string:
messageParams.Add(message.ReadString());
break;
case NetworkDataType.d_byteArray:
int length = message.ReadInt32();
messageParams.Add(message.ReadBytes(length));
break;
}
}
return new IncomingEntityComponentMessage(componentFamily, messageParams);
}
public void Decode(NetIncomingMessage im)
{
this.ServerName = im.ReadString();
this.Description = im.ReadString();
this.Intro = im.ReadString();
this.Online = im.ReadByte();
int roomsLength = im.ReadByte();
for (int i = 0; i < roomsLength; i++)
{
Rooms.Add(new LobbySaveData(im.ReadString(), im.ReadInt16(), im.ReadString(), im.ReadByte(), im.ReadInt16(), im.ReadDouble()));
}
}
public override void OnAdvancedNetworkMessage(NetIncomingMessage msg)
{
if (msg.ReadByte() == 0)
{
this.lxLoot = new List<PreSeededLoot>();
byte byCount = msg.ReadByte();
for (int i = 0; i < (int)byCount; i++)
{
this.lxLoot.Add(new PreSeededLoot(msg.ReadUInt16(), (ItemCodex.ItemTypes)msg.ReadInt32(), new Vector2(msg.ReadFloat(), msg.ReadFloat())));
}
}
}
/// <summary>
///
/// </summary>
/// <param name="incomingMsg"></param>
public void HandleData(NetIncomingMessage incomingMsg)
{
MessageType messageType = (MessageType)incomingMsg.ReadByte();
switch (messageType)
{
case MessageType.MsgState:
SendState();
break;
case MessageType.MsgPlayerClientUpdate:
BroadcastUpdate(incomingMsg);
break;
case MessageType.MsgDeath:
Die(incomingMsg);
break;
case MessageType.MsgBeginShot:
Shoot(incomingMsg);
break;
case MessageType.MsgEndShot:
EndShot(incomingMsg);
break;
default:
break;
}
}
protected override void Read(NetIncomingMessage message)
{
x = message.ReadFloat();
y = message.ReadFloat();
rotation = message.ReadUInt16().FromNetworkRotation() * (180f / (float)Math.PI);
type = message.ReadByte();
}
static object ReadArgument(NetIncomingMessage msg, Type type)
{
if (type == typeof(int))
{
return msg.ReadInt32();
}
else if (type == typeof(byte))
{
return msg.ReadByte();
}
else if (type == typeof(float))
{
return msg.ReadFloat();
}
else if (type == typeof(Vector3))
{
return NetworkUtils.ReadVector3(msg);
}
else if (type == typeof(Quaternion))
{
return NetworkUtils.ReadQuaternion(msg);
}
else if (type == typeof(string))
{
return msg.ReadString();
}
else
{
throw new Exception("Unsupported argument type " + type);
}
}
public LidgrenStatusChangeMessageContext(NetIncomingMessage incomingMessage)
: base(incomingMessage)
{
LidgrenStatus = (NetConnectionStatus)incomingMessage.ReadByte();
//Generate a Lidgren status message for dispatching
GeneratedStatusMessage = new LidgrenStatusMessage(LidgrenStatus);
}
private void Data(NetIncomingMessage inc)
{
var packetType = (PacketType) inc.ReadByte();
var gameRoom = GetGameRoomById(inc.ReadString());
var command = PacketFactory.GetCommand(packetType);
command.Run(_managerLogger, this,inc, null, gameRoom);
}
public static NetObject ReadFromMessage(NetIncomingMessage message)
{
var type = (NetObjectType)message.ReadByte();
var instance = (NetObject)Activator.CreateInstance(netObjectTypes[type]);
instance.Read(message);
return instance;
}
public static new Packet FromNetBuffer(NetIncomingMessage incomingMessage)
{
var id = incomingMessage.ReadInt32();
var type = (ContentType)incomingMessage.ReadByte();
var packet = new ContentReleasePacket(type, id);
return packet;
}
public void R(NetIncomingMessage im)
{
Operat = im.ReadByte();
UserId = im.ReadUInt32();
if (Operat == Add || Operat == Changed)
{
Tag = im.ReadUInt32();
if (GameMessageHelper.Is_Changed(Tag, GameMessageHelper.POSITION_TAG))
{
X = im.ReadFloat();
Y = im.ReadFloat();
}
if (GameMessageHelper.Is_Changed(Tag, GameMessageHelper.RADIUS_TAG))
{
Radius = im.ReadInt32();
}
if (GameMessageHelper.Is_Changed(Tag, GameMessageHelper.COLOR_TAG))
{
Color = im.ReadUInt32();
}
if (GameMessageHelper.Is_Changed(Tag, GameMessageHelper.NAME_TAG))
{
Name = im.ReadString();
}
}
}
private static Packet ReadFromMessage(NetIncomingMessage message)
{
var id = (PacketId)message.ReadByte();
var instance = (Packet)Activator.CreateInstance(packetTypes[id]);
instance.Read(message);
return instance;
}
public static Packet decode(ref NetIncomingMessage msg)
{
Packet p = new Packet (0);
p.type = msg.ReadByte ();
p.clientId = msg.ReadInt32 ();
return p;
}
/// <summary>
/// Writes a <see cref="NetIncomingMessage"/> buffer into the BitStream.
/// </summary>
/// <param name="source">The <see cref="NetIncomingMessage"/> who's contents will be copied to this BitStream.</param>
public void Write(NetIncomingMessage source)
{
#if DEBUG
var startBSPos = PositionBits;
var startMsgPos = (int)source.Position;
#endif
// Read full 32-bit integers
while (source.LengthBits - source.Position >= _bitsInt)
{
var v = source.ReadUInt32();
Write(v);
}
// Read full 8-bit integers
while (source.LengthBits - source.Position >= _bitsByte)
{
var v = source.ReadByte();
Write(v);
}
// Read the remaining bits
while (source.LengthBits > source.Position)
{
var v = source.ReadBoolean();
Write(v);
}
Debug.Assert(source.Position == source.LengthBits);
#if DEBUG
Debug.Assert(PositionBits - startBSPos == source.LengthBits - startMsgPos);
#endif
}
public void ReceiveMessage(object sender, NetIncomingMessage msg)
{
#if !EXTERNAL
UnityEngine.Debug.Log("Got message [" + msg.LengthBytes + "B]");
#else
Console.WriteLine("Got message [" + msg.LengthBytes + "B]");
#endif
MsgType type = (MsgType)msg.ReadByte();
switch (type)
{
case MsgType.RecommendationRequest:
if (this.RecommendationRequested != null)
this.RecommendationRequested(msg);
break;
case MsgType.RecommendationContent:
if (this.RecommendationReceived != null)
this.RecommendationReceived(msg);
break;
case MsgType.RecommendationSelected:
if (this.RecommendationSelected != null)
this.RecommendationSelected(msg);
break;
case MsgType.ObjectsFreed:
if (this.ObjectsFreed != null)
this.ObjectsFreed(msg);
break;
case MsgType.Sentiments:
if (this.Sentiments != null)
this.Sentiments(msg);
break;
default: break;
}
}
public void Decode(NetIncomingMessage im)
{
this.ID = im.ReadByte();
this.Message = im.ReadString();
if (Message.Length > Networking.Messages.ChatMessage.MaxLength)
Message= Message.Truncate(Networking.Messages.ChatMessage.MaxLength);
}
public void Run(ManagerLogger managerLogger, Server server, NetIncomingMessage inc, PlayerAndConnection playerAndConnection, GameRoom gameRoom)
{
managerLogger.AddLogMessage("server", "New connection...");
var data = inc.ReadByte();
if (data == (byte)PacketType.Login)
{
managerLogger.AddLogMessage("server", "..connection accpeted.");
playerAndConnection = CreatePlayer(inc, gameRoom.Players, gameRoom.ManagerCamera);
inc.SenderConnection.Approve();
var outmsg = server.NetServer.CreateMessage();
outmsg.Write((byte)PacketType.Login);
outmsg.Write(true);
outmsg.Write(gameRoom.Players.Count);
for (int n = 0; n < gameRoom.Players.Count; n++)
{
var p = gameRoom.Players[n];
outmsg.Write(p.Player.Username);
outmsg.WriteAllProperties(p.Player.Position);
}
server.NetServer.SendMessage(outmsg, inc.SenderConnection, NetDeliveryMethod.ReliableOrdered, 0);
var command = new PlayerPositionCommand();
command.Run(managerLogger, server,inc,playerAndConnection,gameRoom);
server.SendNewPlayerEvent(playerAndConnection.Player.Username, gameRoom.GameRoomId);
}
else
{
inc.SenderConnection.Deny("Didn't send correct information.");
}
}
public void Decode(NetIncomingMessage im)
{
this.ID = im.ReadByte();
this.Position = new Point(im.ReadInt32(), im.ReadInt32());
this.Velocity = new Point(im.ReadInt32(), im.ReadInt32());
this.Movement = new Point(im.ReadInt32(), im.ReadInt32());
this.IsJumping = im.ReadBoolean();
}
public static Packet ReadFromMessage(NetIncomingMessage msg)
{
PacketType type = (PacketType)msg.ReadByte();
Packet packet = (Packet)Activator.CreateInstance(PacketTypes[type]);
packet.Read(msg);
return packet;
}
public void StatusCallbackImpl(NetServer server, NetIncomingMessage msg)
{
NetConnectionStatus status = (NetConnectionStatus)msg.ReadByte();
if (status == NetConnectionStatus.Disconnected)
{
RemoveFarmObj(msg.SenderConnection);
}
}
public void HandleData(NetIncomingMessage msg)
{
NetMsgType datatype = (NetMsgType)msg.ReadByte();
if (datatype == NetMsgType.Control)
{
Soul soul = (Soul)msg.SenderConnection.Tag;
var key = (ControlKey)msg.ReadByte();
var edge = msg.ReadBoolean();
//Console.WriteLine("Received Control Message: " + key + (edge ? "Pressed" : "Released"));
soul.currentShip.Controls.ReceiveMessage(key, edge);
}
else if (datatype == NetMsgType.ControlUpdate)
{
Soul soul = (Soul)msg.SenderConnection.Tag;
var Pitch = msg.ReadFloat();
var Yaw = msg.ReadFloat();
var Roll = msg.ReadFloat();
soul.currentShip.Controls.ReceiveMessage(Pitch, Yaw, Roll);
}
else if (datatype == NetMsgType.ShipDataOutput)
{
ShipDataOutputMessage data;
data = new ShipDataOutputMessage(msg);
Soul soul = new Soul(msg.SenderConnection);
soul.currentSector = Sector.Redria;
msg.SenderConnection.Tag = soul;
soul.currentSector.Terrain.Load(msg.SenderConnection);
soul.currentSector.Ships.Load(msg.SenderConnection);
soul.currentSector.Objects.Load(msg.SenderConnection);
var idRandomizer = new Random();
var NewShip = new ShipObj(new Vector3(0, 100, 2), Quaternion.Identity,
data.GeneratedData);
soul.currentShip = NewShip;
NewShip.Client = soul;
//Console.WriteLine(msg.SenderEndpoint.Address + "'s Ship ID: " + NewShip.ID);
foreach (NetConnection c in Network.Server.Connections)
{
MessageWriter.ClientEntityCreationMessage(c,
NewShip.ID, NewShip.Position, NewShip.Orientation,
data.GeneratedData.NoseID, data.GeneratedData.CoreID, data.GeneratedData.EngineID,
data.Weapons, msg.SenderConnection.RemoteUniqueIdentifier);
}
}
}
protected override void Read(NetIncomingMessage message)
{
Name = message.ReadString();
X = message.ReadFloat();
Y = message.ReadFloat();
rotation = message.ReadUInt16().FromNetworkRotation() * (180f / (float)Math.PI);
Health = message.ReadByte() / (float)byte.MaxValue;
}
public static void readBytes(NetIncomingMessage data, ClientSprite cs)
{
data.ReadByte();
cs.ID = data.ReadUInt32();
cs.SpriteID = (SpriteIDs)data.ReadUInt16();
cs.Position = new Microsoft.Xna.Framework.Vector2(data.ReadFloat(),data.ReadFloat());
cs.Rotation = data.ReadFloat();
}
/// <summary>
/// Called when host/client receives a NatIntroduction message from a master server
/// </summary>
private void HandleNatIntroduction(int ptr)
{
VerifyNetworkThread();
// read intro
NetIncomingMessage tmp = SetupReadHelperMessage(ptr, 1000); // never mind length
byte hostByte = tmp.ReadByte();
IPEndPoint remoteInternal = tmp.ReadIPEndpoint();
IPEndPoint remoteExternal = tmp.ReadIPEndpoint();
string token = tmp.ReadString();
bool isHost = (hostByte != 0);
LogDebug("NAT introduction received; we are designated " + (isHost ? "host" : "client"));
NetOutgoingMessage punch;
if (!isHost && m_configuration.IsMessageTypeEnabled(NetIncomingMessageType.NatIntroductionSuccess) == false)
{
return; // no need to punch - we're not listening for nat intros!
}
#if DEBUG
LogDebug("Enqueuing internal Punch message" + remoteInternal.ToString());
#endif
// send internal punch
punch = CreateMessage(1);
punch.m_messageType = NetMessageType.NatPunchMessage;
punch.Write(hostByte);
punch.Write(token);
m_unsentUnconnectedMessages.Enqueue(new NetTuple <IPEndPoint, NetOutgoingMessage>(remoteInternal, punch));
#if DEBUG
LogDebug("Enqueuing External Punch message to " + remoteExternal.ToString());
#endif
// send external punch
punch = CreateMessage(1);
punch.m_messageType = NetMessageType.NatPunchMessage;
punch.Write(hostByte);
punch.Write(token);
m_unsentUnconnectedMessages.Enqueue(new NetTuple <IPEndPoint, NetOutgoingMessage>(remoteExternal, punch));
}
/// <summary>
/// Called when host/client receives a NatIntroduction message from a master server
/// </summary>
internal void HandleNatIntroduction(int offset)
{
AssertIsOnLibraryThread();
// read intro
NetIncomingMessage tmp = SetupReadHelperMessage(offset, 1000); // never mind length
byte hostByte = tmp.ReadByte();
IPEndPoint remoteInternal = tmp.ReadIPEndPoint();
IPEndPoint remoteExternal = tmp.ReadIPEndPoint();
string token = tmp.ReadString();
bool isHost = hostByte != 0;
LogDebug(NetLogMessage.FromValues(NetLogCode.NATIntroductionReceived, value: hostByte));
if (!isHost && !Configuration.IsMessageTypeEnabled(NetIncomingMessageType.NatIntroductionSuccess))
{
return; // no need to punch - we're not listening for nat intros!
}
// send internal punch
var internalPunch = CreateMessage(1);
internalPunch._messageType = NetMessageType.NatPunchMessage;
internalPunch.Write(hostByte);
internalPunch.Write(token);
UnsentUnconnectedMessages.Enqueue((remoteInternal, internalPunch));
LogDebug(new NetLogMessage(NetLogCode.NATPunchSent, endPoint: remoteInternal));
// send external punch
var externalPunch = CreateMessage(1);
externalPunch._messageType = NetMessageType.NatPunchMessage;
externalPunch.Write(hostByte);
externalPunch.Write(token);
UnsentUnconnectedMessages.Enqueue((remoteExternal, externalPunch));
LogDebug(new NetLogMessage(NetLogCode.NATPunchSent, endPoint: remoteExternal));
}
/// <summary>
/// Called when host/client receives a NatIntroduction message from a master server
/// </summary>
internal void HandleNatIntroduction(int ptr)
{
// read intro
NetIncomingMessage tmp = SetupReadHelperMessage(ptr, 1000); // never mind length
byte hostByte = tmp.ReadByte();
NetEndPoint remoteInternal = tmp.ReadIPEndPoint();
NetEndPoint remoteExternal = tmp.ReadIPEndPoint();
string token = tmp.ReadString();
bool isHost = (hostByte != 0);
LogDebug("NAT introduction received; we are designated " + (isHost ? "host" : "client"));
NetOutgoingMessage punch;
if (!isHost && m_configuration.IsMessageTypeEnabled(NetIncomingMessageType.NatIntroductionSuccess) == false)
{
return; // no need to punch - we're not listening for nat intros!
}
// send internal punch
punch = CreateMessage(1);
punch.m_messageType = NetMessageType.NatPunchMessage;
punch.Write(hostByte);
punch.Write(token);
Interlocked.Increment(ref punch.m_recyclingCount);
m_unsentUnconnectedMessages.Enqueue(new NetTuple <NetEndPoint, NetOutgoingMessage>(remoteInternal, punch));
LogDebug("NAT punch sent to " + remoteInternal);
// send external punch
punch = CreateMessage(1);
punch.m_messageType = NetMessageType.NatPunchMessage;
punch.Write(hostByte);
punch.Write(token);
Interlocked.Increment(ref punch.m_recyclingCount);
m_unsentUnconnectedMessages.Enqueue(new NetTuple <NetEndPoint, NetOutgoingMessage>(remoteExternal, punch));
LogDebug("NAT punch sent to " + remoteExternal);
}
private void HandleNatPunchConfirmed(int ptr, NetEndPoint senderEndPoint)
{
NetIncomingMessage tmp = SetupReadHelperMessage(ptr, 1000); // never mind length
var isFromClient = tmp.ReadByte() == ClientByte;
if (isFromClient)
{
LogDebug("NAT punch confirmation received from " + senderEndPoint + " we're host, so we ignore this");
return;
}
string token = tmp.ReadString();
LogDebug("NAT punch confirmation received from " + senderEndPoint + " we're client so we go ahead and succeed the introduction");
//
// Release punch success to client; enabling him to Connect() to msg.Sender if token is ok
//
NetIncomingMessage punchSuccess = CreateIncomingMessage(NetIncomingMessageType.NatIntroductionSuccess, 10);
punchSuccess.m_senderEndPoint = senderEndPoint;
punchSuccess.Write(token);
ReleaseMessage(punchSuccess);
}
// received a library message while Connected
internal void ReceivedLibraryMessage(NetMessageType tp, int ptr, int payloadLength)
{
m_peer.VerifyNetworkThread();
float now = (float)NetTime.Now;
switch (tp)
{
case NetMessageType.Connect:
m_peer.LogDebug("Received handshake message (" + tp + ") despite connection being in place");
break;
case NetMessageType.ConnectResponse:
// handshake message must have been lost
HandleConnectResponse(now, tp, ptr, payloadLength);
break;
case NetMessageType.ConnectionEstablished:
// do nothing, all's well
break;
case NetMessageType.LibraryError:
m_peer.ThrowOrLog("LibraryError received by ReceivedLibraryMessage; this usually indicates a malformed message");
break;
case NetMessageType.Disconnect:
NetIncomingMessage msg = m_peer.SetupReadHelperMessage(ptr, payloadLength);
m_disconnectRequested = true;
m_disconnectMessage = msg.ReadString();
m_disconnectReqSendBye = false;
//ExecuteDisconnect(msg.ReadString(), false);
break;
case NetMessageType.Acknowledge:
for (int i = 0; i < payloadLength; i += 3)
{
NetMessageType acktp = (NetMessageType)m_peer.m_receiveBuffer[ptr++]; // netmessagetype
int seqNr = m_peer.m_receiveBuffer[ptr++];
seqNr |= (m_peer.m_receiveBuffer[ptr++] << 8);
// need to enqueue this and handle it in the netconnection heartbeat; so be able to send resends together with normal sends
m_queuedIncomingAcks.Enqueue(new NetTuple <NetMessageType, int>(acktp, seqNr));
}
break;
case NetMessageType.Ping:
int pingNr = m_peer.m_receiveBuffer[ptr++];
SendPong(pingNr);
break;
case NetMessageType.Pong:
NetIncomingMessage pmsg = m_peer.SetupReadHelperMessage(ptr, payloadLength);
int pongNr = pmsg.ReadByte();
float remoteSendTime = pmsg.ReadSingle();
ReceivedPong(now, pongNr, remoteSendTime);
break;
case NetMessageType.ExpandMTURequest:
SendMTUSuccess(payloadLength);
break;
case NetMessageType.ExpandMTUSuccess:
if (m_peer.Configuration.AutoExpandMTU == false)
{
m_peer.LogDebug("Received ExpandMTURequest altho AutoExpandMTU is turned off!");
break;
}
NetIncomingMessage emsg = m_peer.SetupReadHelperMessage(ptr, payloadLength);
int size = emsg.ReadInt32();
HandleExpandMTUSuccess(now, size);
break;
case NetMessageType.NatIntroduction:
// Unusual situation where server is actually already known, but got a nat introduction - oh well, lets handle it as usual
m_peer.HandleNatIntroduction(ptr);
break;
default:
m_peer.LogWarning("Connection received unhandled library message: " + tp);
break;
}
}
internal void ReceivedHandshake(double now, NetMessageType tp, int ptr, int payloadLength)
{
m_peer.VerifyNetworkThread();
byte[] hail;
switch (tp)
{
case NetMessageType.Connect:
if (m_status == NetConnectionStatus.ReceivedInitiation)
{
// Whee! Server full has already been checked
bool ok = ValidateHandshakeData(ptr, payloadLength, out hail);
if (ok)
{
if (hail != null)
{
m_remoteHailMessage = m_peer.CreateIncomingMessage(NetIncomingMessageType.Data, hail);
m_remoteHailMessage.LengthBits = (hail.Length * 8);
}
else
{
m_remoteHailMessage = null;
}
if (m_peerConfiguration.IsMessageTypeEnabled(NetIncomingMessageType.ConnectionApproval))
{
// ok, let's not add connection just yet
NetIncomingMessage appMsg = m_peer.CreateIncomingMessage(NetIncomingMessageType.ConnectionApproval, (m_remoteHailMessage == null ? 0 : m_remoteHailMessage.LengthBytes));
appMsg.m_receiveTime = now;
appMsg.m_senderConnection = this;
appMsg.m_senderEndPoint = this.m_remoteEndPoint;
if (m_remoteHailMessage != null)
{
appMsg.Write(m_remoteHailMessage.m_data, 0, m_remoteHailMessage.LengthBytes);
}
SetStatus(NetConnectionStatus.RespondedAwaitingApproval, NetConnectionResult.AwaitingApproval);
m_peer.ReleaseMessage(appMsg);
return;
}
SendConnectResponse((float)now, true);
}
return;
}
if (m_status == NetConnectionStatus.RespondedAwaitingApproval)
{
m_peer.LogWarning("Ignoring multiple Connect() most likely due to a delayed Approval");
return;
}
if (m_status == NetConnectionStatus.RespondedConnect)
{
// our ConnectResponse must have been lost
SendConnectResponse((float)now, true);
return;
}
m_peer.LogDebug("Unhandled Connect: " + tp + ", status is " + m_status + " length: " + payloadLength);
break;
case NetMessageType.ConnectResponse:
HandleConnectResponse(now, tp, ptr, payloadLength);
break;
case NetMessageType.ConnectionEstablished:
switch (m_status)
{
case NetConnectionStatus.Connected:
// ok...
break;
case NetConnectionStatus.Disconnected:
case NetConnectionStatus.Disconnecting:
case NetConnectionStatus.None:
// too bad, almost made it
break;
case NetConnectionStatus.ReceivedInitiation:
// uh, a little premature... ignore
break;
case NetConnectionStatus.InitiatedConnect:
// weird, should have been RespondedConnect...
break;
case NetConnectionStatus.RespondedConnect:
// awesome
NetIncomingMessage msg = m_peer.SetupReadHelperMessage(ptr, payloadLength);
InitializeRemoteTimeOffset(msg.ReadSingle());
m_peer.AcceptConnection(this);
InitializePing();
SetStatus(NetConnectionStatus.Connected, NetConnectionResult.Connected);
return;
}
break;
case NetMessageType.Disconnect:
// ouch
var reason = NetConnectionResult.Unknown;
try
{
NetIncomingMessage inc = m_peer.SetupReadHelperMessage(ptr, payloadLength);
reason = (NetConnectionResult)inc.ReadByte();
}
catch
{
}
ExecuteDisconnect(reason, false);
break;
case NetMessageType.Discovery:
m_peer.HandleIncomingDiscoveryRequest(now, m_remoteEndPoint, ptr, payloadLength);
return;
case NetMessageType.DiscoveryResponse:
m_peer.HandleIncomingDiscoveryResponse(now, m_remoteEndPoint, ptr, payloadLength);
return;
case NetMessageType.Ping:
// silently ignore
return;
default:
m_peer.LogDebug("Unhandled type during handshake: " + tp + " length: " + payloadLength);
break;
}
}
// received a library message while Connected
internal void ReceivedLibraryMessage(NetMessageType tp, int ptr, int payloadLength)
{
m_peer.VerifyNetworkThread();
float now = (float)NetTime.Now;
switch (tp)
{
case NetMessageType.Disconnect:
NetIncomingMessage msg = m_peer.SetupReadHelperMessage(ptr, payloadLength);
ExecuteDisconnect(msg.ReadString(), false);
break;
case NetMessageType.Acknowledge:
for (int i = 0; i < payloadLength; i += 3)
{
NetMessageType acktp = (NetMessageType)m_peer.m_receiveBuffer[ptr++]; // netmessagetype
int seqNr = m_peer.m_receiveBuffer[ptr++];
seqNr |= (m_peer.m_receiveBuffer[ptr++] << 8);
// need to enqueue this and handle it in the netconnection heartbeat; so be able to send resends together with normal sends
m_queuedIncomingAcks.Enqueue(new NetTuple <NetMessageType, int>(acktp, seqNr));
}
break;
case NetMessageType.Ping:
int pingNr = m_peer.m_receiveBuffer[ptr++];
SendPong(pingNr);
break;
case NetMessageType.Pong:
NetIncomingMessage pmsg = m_peer.SetupReadHelperMessage(ptr, payloadLength);
int pongNr = pmsg.ReadByte();
float remoteSendTime = pmsg.ReadSingle();
ReceivedPong(now, pongNr, remoteSendTime);
break;
case NetMessageType.ExpandMTURequest:
SendMTUSuccess(payloadLength);
break;
case NetMessageType.ExpandMTUSuccess:
NetIncomingMessage emsg = m_peer.SetupReadHelperMessage(ptr, payloadLength);
int size = emsg.ReadInt32();
HandleExpandMTUSuccess(now, size);
break;
case NetMessageType.NatIntroduction:
// Unusual situation where server is actually already known, but got a nat introduction - oh well, lets handle it as usual
m_peer.HandleNatIntroduction(ptr);
break;
case NetMessageType.ConnectResponse: // Lidgren bug fix -AR
// ConnectionEstablished (from handshake) must have been lost, send another one
m_peer.LogDebug("Resending ConnectionEstablished...");
SendConnectionEstablished();
break;
default:
m_peer.LogWarning("Connection received unhandled library message: " + tp);
break;
}
}
private void Heartbeat()
{
VerifyNetworkThread();
double dnow = NetTime.Now;
float now = (float)dnow;
double delta = dnow - m_lastHeartbeat;
int maxCHBpS = 1250 - m_connections.Count;
if (maxCHBpS < 250)
{
maxCHBpS = 250;
}
if (delta > (1.0 / (double)maxCHBpS) || delta < 0.0) // max connection heartbeats/second max
{
m_frameCounter++;
m_lastHeartbeat = dnow;
// do handshake heartbeats
if ((m_frameCounter % 3) == 0)
{
foreach (var kvp in m_handshakes)
{
NetConnection conn = kvp.Value as NetConnection;
#if DEBUG
// sanity check
if (kvp.Key != kvp.Key)
{
LogWarning("Sanity fail! Connection in handshake list under wrong key!");
}
#endif
conn.UnconnectedHeartbeat(now);
if (conn.m_status == NetConnectionStatus.Connected || conn.m_status == NetConnectionStatus.Disconnected)
{
#if DEBUG
// sanity check
if (conn.m_status == NetConnectionStatus.Disconnected && m_handshakes.ContainsKey(conn.RemoteEndPoint))
{
LogWarning("Sanity fail! Handshakes list contained disconnected connection!");
m_handshakes.Remove(conn.RemoteEndPoint);
}
#endif
break; // collection has been modified
}
}
}
#if DEBUG
SendDelayedPackets();
#endif
// update m_executeFlushSendQueue
if (m_configuration.m_autoFlushSendQueue)
{
m_executeFlushSendQueue = true;
}
// do connection heartbeats
lock (m_connections)
{
foreach (NetConnection conn in m_connections)
{
conn.Heartbeat(now, m_frameCounter);
if (conn.m_status == NetConnectionStatus.Disconnected)
{
//
// remove connection
//
m_connections.Remove(conn);
m_connectionLookup.Remove(conn.RemoteEndPoint);
break; // can't continue iteration here
}
}
}
m_executeFlushSendQueue = false;
// send unsent unconnected messages
NetTuple <IPEndPoint, NetOutgoingMessage> unsent;
while (m_unsentUnconnectedMessages.TryDequeue(out unsent))
{
NetOutgoingMessage om = unsent.Item2;
bool connReset;
int len = om.Encode(m_sendBuffer, 0, 0);
SendPacket(len, unsent.Item1, 1, out connReset);
Interlocked.Decrement(ref om.m_recyclingCount);
if (om.m_recyclingCount <= 0)
{
Recycle(om);
}
}
}
//
// read from socket
//
if (m_socket == null)
{
return;
}
if (!m_socket.Poll(1000, SelectMode.SelectRead)) // wait up to 1 ms for data to arrive
{
return;
}
//if (m_socket == null || m_socket.Available < 1)
// return;
// update now
dnow = NetTime.Now;
now = (float)dnow;
do
{
int bytesReceived = 0;
try
{
bytesReceived = m_socket.ReceiveFrom(m_receiveBuffer, 0, m_receiveBuffer.Length, SocketFlags.None, ref m_senderRemote);
}
catch (SocketException sx)
{
switch (sx.SocketErrorCode)
{
case SocketError.ConnectionReset:
// connection reset by peer, aka connection forcibly closed aka "ICMP port unreachable"
// we should shut down the connection; but m_senderRemote seemingly cannot be trusted, so which connection should we shut down?!
// So, what to do?
LogWarning("ConnectionReset");
return;
case SocketError.NotConnected:
// socket is unbound; try to rebind it (happens on mobile when process goes to sleep)
BindSocket(true);
return;
default:
LogWarning("Socket exception: " + sx.ToString());
return;
}
}
if (bytesReceived < NetConstants.HeaderByteSize)
{
return;
}
//LogVerbose("Received " + bytesReceived + " bytes");
IPEndPoint ipsender = (IPEndPoint)m_senderRemote;
if (m_upnp != null && now < m_upnp.m_discoveryResponseDeadline && bytesReceived > 32)
{
// is this an UPnP response?
string resp = System.Text.Encoding.ASCII.GetString(m_receiveBuffer, 0, bytesReceived);
if (resp.Contains("upnp:rootdevice") || resp.Contains("UPnP/1.0"))
{
try
{
resp = resp.Substring(resp.ToLower().IndexOf("location:") + 9);
resp = resp.Substring(0, resp.IndexOf("\r")).Trim();
m_upnp.ExtractServiceUrl(resp);
return;
}
catch (Exception ex)
{
LogDebug("Failed to parse UPnP response: " + ex.ToString());
// don't try to parse this packet further
return;
}
}
}
NetConnection sender = null;
m_connectionLookup.TryGetValue(ipsender, out sender);
//
// parse packet into messages
//
int numMessages = 0;
int numFragments = 0;
int ptr = 0;
while ((bytesReceived - ptr) >= NetConstants.HeaderByteSize)
{
// decode header
// 8 bits - NetMessageType
// 1 bit - Fragment?
// 15 bits - Sequence number
// 16 bits - Payload length in bits
numMessages++;
NetMessageType tp = (NetMessageType)m_receiveBuffer[ptr++];
byte low = m_receiveBuffer[ptr++];
byte high = m_receiveBuffer[ptr++];
bool isFragment = ((low & 1) == 1);
ushort sequenceNumber = (ushort)((low >> 1) | (((int)high) << 7));
numFragments++;
ushort payloadBitLength = (ushort)(m_receiveBuffer[ptr++] | (m_receiveBuffer[ptr++] << 8));
int payloadByteLength = NetUtility.BytesToHoldBits(payloadBitLength);
if (bytesReceived - ptr < payloadByteLength)
{
LogWarning("Malformed packet; stated payload length " + payloadByteLength + ", remaining bytes " + (bytesReceived - ptr));
return;
}
if (tp >= NetMessageType.Unused1 && tp <= NetMessageType.Unused29)
{
ThrowOrLog("Unexpected NetMessageType: " + tp);
return;
}
try
{
if (tp >= NetMessageType.LibraryError)
{
if (sender != null)
{
sender.ReceivedLibraryMessage(tp, ptr, payloadByteLength);
}
else
{
ReceivedUnconnectedLibraryMessage(dnow, ipsender, tp, ptr, payloadByteLength);
}
}
else
{
if (sender == null && !m_configuration.IsMessageTypeEnabled(NetIncomingMessageType.UnconnectedData))
{
return; // dropping unconnected message since it's not enabled
}
NetIncomingMessage msg = m_receiveBuffer[ptr] == 255 ? CreateIncomingMessage(NetIncomingMessageType.ExternalHighlevelMessage, payloadByteLength)
: CreateIncomingMessage(NetIncomingMessageType.Data, payloadByteLength);
msg.m_isFragment = isFragment;
msg.m_receiveTime = dnow;
msg.m_sequenceNumber = sequenceNumber;
msg.m_receivedMessageType = tp;
msg.m_senderConnection = sender;
msg.m_senderEndPoint = ipsender;
//This value will not be accurate and making it accurate is a waste of time.
msg.m_bitLength = payloadBitLength;
Buffer.BlockCopy(m_receiveBuffer, ptr, msg.m_data, 0, payloadByteLength);
msg.ReadByte();
/*Console.WriteLine("");
* for (int i = 0; i < msg.Data.Length; i++)
* {
* Console.Write("B: " + msg.Data[i]);
* }*/
if (sender != null)
{
if (tp == NetMessageType.Unconnected)
{
// We're connected; but we can still send unconnected messages to this peer
msg.m_incomingMessageType = NetIncomingMessageType.UnconnectedData;
ReleaseMessage(msg);
}
else
{
// connected application (non-library) message
sender.ReceivedMessage(msg);
}
}
else
{
// at this point we know the message type is enabled
// unconnected application (non-library) message
msg.m_incomingMessageType = NetIncomingMessageType.UnconnectedData;
ReleaseMessage(msg);
}
}
}
catch (Exception ex)
{
LogError("Packet parsing error: " + ex.Message + " from " + ipsender);
}
ptr += payloadByteLength;
}
m_statistics.PacketReceived(bytesReceived, numMessages, numFragments);
if (sender != null)
{
sender.m_statistics.PacketReceived(bytesReceived, numMessages, numFragments);
}
} while (m_socket.Available > 0);
}
