private void ContentReceived(MqttContent Content)
{
ContentReceivedEventHandler h = this.OnContentReceived;
if (!(h is null))
{
try
{
h(this, Content);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
}
private bool ProcessInputPacket()
{
try
{
BinaryInput Packet = new BinaryInput(this.inputPacket);
MqttHeader Header = MqttHeader.Parse(Packet);
switch (Header.ControlPacketType)
{
case MqttControlPacketType.CONNECT:
default:
throw new Exception("Received command from server that is not handled: " + Header.ControlPacketType.ToString());
case MqttControlPacketType.CONNACK:
bool SessionPresent = (Packet.ReadByte() & 1) != 0;
byte ReturnCode = Packet.ReadByte();
try
{
switch (ReturnCode)
{
case 0:
this.State = MqttState.Connected;
this.nextPing = DateTime.Now.AddMilliseconds(this.keepAliveSeconds * 500);
break;
case 1:
throw new IOException("Connection Refused, unacceptable protocol version.");
case 2:
throw new IOException("Connection Refused, identifier rejected.");
case 3:
throw new IOException("Connection Refused, Server unavailable.");
case 4:
throw new IOException("Connection Refused, bad user name or password.");
case 5:
throw new IOException("Connection Refused, not authorized.");
default:
throw new IOException("Unrecognized error code returned: " + ReturnCode.ToString());
}
}
catch (Exception ex)
{
this.ConnectionError(ex);
this.stream.Close();
this.client.Close();
return false;
}
break;
case MqttControlPacketType.PINGREQ:
this.PINGRESP();
break;
case MqttControlPacketType.PINGRESP:
EventHandler h = this.OnPingResponse;
if (h != null)
{
try
{
h(this, new EventArgs());
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
case MqttControlPacketType.PUBLISH:
string Topic = Packet.ReadString();
if (Header.QualityOfService > MqttQualityOfService.AtMostOne)
Header.PacketIdentifier = Packet.ReadUInt16();
else
Header.PacketIdentifier = 0;
int c = Packet.BytesLeft;
byte[] Data = Packet.ReadBytes(c);
MqttContent Content = new MqttContent(Header, Topic, Data);
switch (Header.QualityOfService)
{
case MqttQualityOfService.AtMostOne:
this.ContentReceived(Content);
break;
case MqttQualityOfService.AtLeastOne:
this.PUBACK(Header.PacketIdentifier);
this.ContentReceived(Content);
break;
case MqttQualityOfService.ExactlyOne:
lock (this.contentCache)
{
this.contentCache[Header.PacketIdentifier] = Content;
}
this.PUBREC(Header.PacketIdentifier);
break;
}
break;
case MqttControlPacketType.PUBACK:
this.PacketDelivered(Header.PacketIdentifier);
PacketAcknowledgedEventHandler h2 = this.OnPublished;
if (h2 != null)
{
try
{
h2(this, Header.PacketIdentifier);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
case MqttControlPacketType.PUBREC:
this.PacketDelivered(Header.PacketIdentifier);
this.PUBREL(Header.PacketIdentifier);
break;
case MqttControlPacketType.PUBREL:
lock (this.contentCache)
{
if (this.contentCache.TryGetValue(Header.PacketIdentifier, out Content))
this.contentCache.Remove(Header.PacketIdentifier);
else
Content = null;
}
this.PUBCOMP(Header.PacketIdentifier);
if (Content != null)
this.ContentReceived(Content);
break;
case MqttControlPacketType.PUBCOMP:
this.PacketDelivered(Header.PacketIdentifier);
h2 = this.OnPublished;
if (h2 != null)
{
try
{
h2(this, Header.PacketIdentifier);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
case MqttControlPacketType.SUBACK:
this.PacketDelivered(Header.PacketIdentifier);
h2 = this.OnSubscribed;
if (h2 != null)
{
try
{
h2(this, Header.PacketIdentifier);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
case MqttControlPacketType.UNSUBACK:
this.PacketDelivered(Header.PacketIdentifier);
h2 = this.OnUnsubscribed;
if (h2 != null)
{
try
{
h2(this, Header.PacketIdentifier);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
}
}
catch (Exception ex)
{
this.Error(ex);
}
return true;
}
private void ContentReceived(MqttContent Content)
{
ContentReceivedEventHandler h = this.OnContentReceived;
if (h != null)
{
try
{
h(this, Content);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
}
private bool ProcessInputPacket()
{
try
{
BinaryInput Packet = new BinaryInput(this.inputPacket);
MqttHeader Header = MqttHeader.Parse(Packet);
switch (Header.ControlPacketType)
{
case MqttControlPacketType.CONNECT:
default:
throw new Exception("Received command from server that is not handled: " + Header.ControlPacketType.ToString());
case MqttControlPacketType.CONNACK:
bool SessionPresent = (Packet.ReadByte() & 1) != 0;
byte ReturnCode = Packet.ReadByte();
try
{
switch (ReturnCode)
{
case 0:
this.State = MqttState.Connected;
this.nextPing = DateTime.Now.AddMilliseconds(this.keepAliveSeconds * 500);
break;
case 1:
throw new IOException("Connection Refused, unacceptable protocol version.");
case 2:
throw new IOException("Connection Refused, identifier rejected.");
case 3:
throw new IOException("Connection Refused, Server unavailable.");
case 4:
throw new IOException("Connection Refused, bad user name or password.");
case 5:
throw new IOException("Connection Refused, not authorized.");
default:
throw new IOException("Unrecognized error code returned: " + ReturnCode.ToString());
}
}
catch (Exception ex)
{
this.ConnectionError(ex);
this.stream.Close();
this.client.Close();
return(false);
}
break;
case MqttControlPacketType.PINGREQ:
this.PINGRESP();
break;
case MqttControlPacketType.PINGRESP:
EventHandler h = this.OnPingResponse;
if (!(h is null))
{
try
{
h(this, new EventArgs());
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
case MqttControlPacketType.PUBLISH:
string Topic = Packet.ReadString();
if (Header.QualityOfService > MqttQualityOfService.AtMostOne)
{
Header.PacketIdentifier = Packet.ReadUInt16();
}
else
{
Header.PacketIdentifier = 0;
}
int c = Packet.BytesLeft;
byte[] Data = Packet.ReadBytes(c);
MqttContent Content = new MqttContent(Header, Topic, Data);
switch (Header.QualityOfService)
{
case MqttQualityOfService.AtMostOne:
this.ContentReceived(Content);
break;
case MqttQualityOfService.AtLeastOne:
this.PUBACK(Header.PacketIdentifier);
this.ContentReceived(Content);
break;
case MqttQualityOfService.ExactlyOne:
lock (this.contentCache)
{
this.contentCache[Header.PacketIdentifier] = Content;
}
this.PUBREC(Header.PacketIdentifier);
break;
}
break;
case MqttControlPacketType.PUBACK:
this.PacketDelivered(Header.PacketIdentifier);
PacketAcknowledgedEventHandler h2 = this.OnPublished;
if (!(h2 is null))
{
try
{
h2(this, Header.PacketIdentifier);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
case MqttControlPacketType.PUBREC:
this.PacketDelivered(Header.PacketIdentifier);
this.PUBREL(Header.PacketIdentifier);
break;
case MqttControlPacketType.PUBREL:
lock (this.contentCache)
{
if (this.contentCache.TryGetValue(Header.PacketIdentifier, out Content))
{
this.contentCache.Remove(Header.PacketIdentifier);
}
else
{
Content = null;
}
}
this.PUBCOMP(Header.PacketIdentifier);
if (!(Content is null))
{
this.ContentReceived(Content);
}
break;
case MqttControlPacketType.PUBCOMP:
this.PacketDelivered(Header.PacketIdentifier);
h2 = this.OnPublished;
if (!(h2 is null))
{
try
{
h2(this, Header.PacketIdentifier);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
case MqttControlPacketType.SUBACK:
this.PacketDelivered(Header.PacketIdentifier);
h2 = this.OnSubscribed;
if (!(h2 is null))
{
try
{
h2(this, Header.PacketIdentifier);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
case MqttControlPacketType.UNSUBACK:
this.PacketDelivered(Header.PacketIdentifier);
h2 = this.OnUnsubscribed;
if (!(h2 is null))
{
try
{
h2(this, Header.PacketIdentifier);
}
catch (Exception ex)
{
#if LineListener
LLOut(ex.Message, Color.Yellow, Color.DarkRed);
#endif
}
}
break;
}
}
catch (Exception ex)
{
this.Error(ex);
}
return(true);
}
private void mqttConnection_OnContentReceived(MqttConnection Sender, MqttContent Content)
{
BinaryInput Input = Content.DataInput;
byte Command = Input.ReadByte();
switch (Command)
{
case 0: // Hello
string ApplicationName = Input.ReadString();
if (ApplicationName != this.applicationName)
break;
Player Player = this.Deserialize(Input);
if (Player == null)
break;
#if LineListener
Console.Out.WriteLine("Rx: HELLO(" + Player.ToString() + ")");
#endif
IPEndPoint ExpectedEndpoint = Player.GetExpectedEndpoint(this.p2pNetwork);
lock (this.remotePlayersByEndpoint)
{
this.remotePlayersByEndpoint[ExpectedEndpoint] = Player;
this.remotePlayerIPs[ExpectedEndpoint.Address] = true;
this.playersById[Player.PlayerId] = Player;
this.UpdateRemotePlayersLocked();
}
MultiPlayerEnvironmentPlayerInformationEventHandler h = this.OnPlayerAvailable;
if (h != null)
{
try
{
h(this, Player);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
Debug.WriteLine(ex.StackTrace.ToString());
}
}
break;
case 1: // Interconnect
ApplicationName = Input.ReadString();
if (ApplicationName != this.applicationName)
break;
Player = this.Deserialize(Input);
if (Player == null)
break;
#if LineListener
Console.Out.Write("Rx: INTERCONNECT(" + Player.ToString());
#endif
int Index = 0;
int i, c;
LinkedList<Player> Players = new LinkedList<Networking.Player>();
bool LocalPlayerIncluded = false;
Player.Index = Index++;
Players.AddLast(Player);
c = (int)Input.ReadUInt();
for (i = 0; i < c; i++)
{
Player = this.Deserialize(Input);
if (Player == null)
{
#if LineListener
Console.Out.Write("," + this.localPlayer.ToString());
#endif
this.localPlayer.Index = Index++;
LocalPlayerIncluded = true;
}
else
{
#if LineListener
Console.Out.Write("," + Player.ToString());
#endif
Player.Index = Index++;
Players.AddLast(Player);
}
}
#if LineListener
Console.Out.WriteLine(")");
#endif
if (!LocalPlayerIncluded)
break;
this.mqttConnection.Dispose();
this.mqttConnection = null;
lock (this.remotePlayersByEndpoint)
{
this.remotePlayersByEndpoint.Clear();
this.remotePlayerIPs.Clear();
this.remotePlayersByIndex.Clear();
this.playersById.Clear();
this.remotePlayersByIndex[this.localPlayer.Index] = this.localPlayer;
this.playersById[this.localPlayer.PlayerId] = this.localPlayer;
foreach (Player Player2 in Players)
{
ExpectedEndpoint = Player2.GetExpectedEndpoint(this.p2pNetwork);
this.remotePlayersByIndex[Player2.Index] = Player2;
this.remotePlayersByEndpoint[ExpectedEndpoint] = Player2;
this.remotePlayerIPs[ExpectedEndpoint.Address] = true;
this.playersById[Player2.PlayerId] = Player2;
}
this.UpdateRemotePlayersLocked();
}
this.State = MultiPlayerState.ConnectingPlayers;
this.StartConnecting();
break;
case 2: // Bye
ApplicationName = Input.ReadString();
if (ApplicationName != this.applicationName)
break;
Guid PlayerId = Input.ReadGuid();
lock (this.remotePlayersByEndpoint)
{
if (!this.playersById.TryGetValue(PlayerId, out Player))
break;
#if LineListener
Console.Out.WriteLine("Rx: BYE(" + Player.ToString() + ")");
#endif
ExpectedEndpoint = Player.GetExpectedEndpoint(this.p2pNetwork);
this.playersById.Remove(PlayerId);
this.remotePlayersByEndpoint.Remove(ExpectedEndpoint);
this.remotePlayersByIndex.Remove(Player.Index);
IPAddress ExpectedAddress = ExpectedEndpoint.Address;
bool AddressFound = false;
foreach (IPEndPoint EP in this.remotePlayersByEndpoint.Keys)
{
if (IPAddress.Equals(EP.Address, ExpectedAddress))
{
AddressFound = true;
break;
}
}
if (!AddressFound)
this.remotePlayerIPs.Remove(ExpectedAddress);
this.UpdateRemotePlayersLocked();
}
break;
}
}
