/// <summary>
/// contact login server and ensure that the ipaddress of player is currently connected to it
/// </summary>
/// <param name="socket"></param>
/// <param name="subPacket"></param>
private void ConfirmClientConnectionWithLoginServer(Socket socket, SubPacket subPacket)
{
Console.WriteLine("Confirming client connection with login server");
IPAddress[] ip = Dns.GetHostAddresses(LOGIN_SERVER_IP);
Character character = new Character(BitConverter.ToUInt32(subPacket.data, 0));
client.HasHandshakedWorldServerToClient = true;
character.WorldClientConnection = client;
if (!WorldServer.mConnectedPlayerList.ContainsKey(character.CharacterId))
{
Console.WriteLine("Inserting character into dictionary: " + character.CharacterId);
WorldServer.mConnectedPlayerList.TryAdd(character.CharacterId, character);
}
else
{
Console.WriteLine("WARNING! : Connected player already exists and trying to add them into list");
}
IPEndPoint remoteEP = new IPEndPoint(ip[0], LOGIN_SERVER_PORT);
socket.Connect(remoteEP);
HandshakePacket packet = new HandshakePacket(client.GetIp(), client.GetPort(), character.CharacterId);
Console.WriteLine("PORT FROM CLIENT:" + client.GetPort());
Console.WriteLine("IP FROM CLIENT:" + client.GetIp());
Console.WriteLine("CHARACTER ID FROM CLIENT: " + character.CharacterId);
SubPacket sp = new SubPacket(GamePacketOpCode.Handshake, 0, 0, packet.GetBytes(), SubPacketTypes.GamePacket);
BasePacket packetToSend = BasePacket.CreatePacket(sp, true, false);
//send packet to login server for confirmation
WorldClientConnection connectionToLoginServer = new WorldClientConnection();
connectionToLoginServer.socket = socket;
connectionToLoginServer.QueuePacket(packetToSend);
connectionToLoginServer.FlushQueuedSendPackets();
connectionToLoginServer.Disconnect();
}
private void ProcessGenericPackets(List <SubPacket> subPackets)
{
foreach (SubPacket subPacket in subPackets)
{
subPacket.debugPrintSubPacket();
Console.WriteLine(subPacket.gameMessage.opcode);
switch (subPacket.gameMessage.opcode)
{
//contact login server and ensure that ipaddress of player is currently connected to
case ((ushort)GamePacketOpCode.Handshake):
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
IPAddress[] ip = Dns.GetHostAddresses(LOGIN_SERVER_IP);
int characterId = BitConverter.ToInt32(subPacket.data, 0);
client.CharacterId = characterId;
client.WorldServerToClient = true;
IPEndPoint remoteEP = new IPEndPoint(ip[0], LOGIN_SERVER_PORT);
socket.Connect(remoteEP);
HandshakePacket packet = new HandshakePacket(client.GetIp(), client.GetPort(), characterId);
//Console.WriteLine("PORT FROM CLIENT:" + client.GetPort());
//Console.WriteLine("IP FROM CLIENT:" + client.GetIp());
//Console.WriteLine("CHARACTER ID FROM CLIENT: " + client.CharacterId);
SubPacket sp = new SubPacket(GamePacketOpCode.Handshake, 0, 0, packet.GetBytes(), SubPacketTypes.GamePacket);
BasePacket packetToSend = BasePacket.CreatePacket(sp, true, false);
WorldClientConnection loginServer = new WorldClientConnection();
loginServer.socket = socket;
loginServer.QueuePacket(packetToSend);
loginServer.FlushQueuedSendPackets();
}
catch (Exception e)
{
Console.WriteLine(e);
}
break;
case (((ushort)GamePacketOpCode.Acknowledgement)):
AcknowledgePacket ack = new AcknowledgePacket(subPacket.data);
if (ack.AckSuccessful)
{
foreach (var mClient in WorldServer.GetClientConnections()) //check this if any performance issues
{
Console.WriteLine(ack.CharacterId);
if (mClient.CharacterId == ack.CharacterId && mClient.WorldServerToClient) //this is getting the wrong client
{ //maybe set a boolean in clientconnection that tells whether or not client is created from a server to server communication
ConnectedPlayer connectedPlayer = new ConnectedPlayer(ack.CharacterId);
connectedPlayer.ClientAddress = ack.ClientAddress;
WorldServer.mConnectedPlayerList.Add(connectedPlayer.actorId, connectedPlayer);
client = mClient;
SubPacket sp = new SubPacket(GamePacketOpCode.Acknowledgement, 0, 0, subPacket.data, SubPacketTypes.GamePacket);
client.QueuePacket(BasePacket.CreatePacket(sp, true, false));
client.FlushQueuedSendPackets();
Console.WriteLine("Sending ack back to: " + client.GetFullAddress());
break;
}
}
}
break;
//if everything okay
default:
break;
}
}
}
private void ProcessConnectPackets(List <SubPacket> subPackets)
{
foreach (SubPacket subPacket in subPackets)
{
subPacket.debugPrintSubPacket();
switch (subPacket.gameMessage.opcode)
{
case ((ushort)GamePacketOpCode.Handshake):
try
{
Console.WriteLine("100% CORRECT CLIENT CONNECTION: " + client.GetFullAddress());
ConfirmClientConnectionWithLoginServer(new Socket(AddressFamily.InterNetworkV6, SocketType.Stream, ProtocolType.Tcp), subPacket);
}
catch (Exception e)
{
Console.WriteLine(e);
}
break;
case (((ushort)GamePacketOpCode.Acknowledgement)):
AcknowledgePacket ack = new AcknowledgePacket(subPacket.data);
if (ack.AckSuccessful)
{
if (WorldServer.mConnectedPlayerList.TryGetValue(ack.CharacterId, out Character character))
{
client.Disconnect(); //this is 100% login server connection, don't doubt this
client = character.WorldClientConnection;
client.Character = character;
CharacterPositionsWrapper posDbWrapper = WorldDatabase.GetCharacterPosition(client.Character.CharacterId);
client.Character.XPos = posDbWrapper.XPos;
client.Character.YPos = posDbWrapper.YPos;
client.Character.Zone = posDbWrapper.Zone;
Console.WriteLine("Client looks legit: " + (ack.ClientAddress == client.GetIp()));
WorldDatabase.AddToOnlinePlayerList(character.CharacterId, ack.ClientAddress);
client.SessionId = WorldDatabase.GetSessionId(character.CharacterId);
Console.WriteLine("Sending ack received from login server back to: " + client.GetFullAddress());
AcknowledgePacket responseAck = new AcknowledgePacket(ack.AckSuccessful, client.SessionId);
SubPacket sp = new SubPacket(GamePacketOpCode.Acknowledgement, 0, 0, responseAck.GetResponseFromWorldServerBytes(), SubPacketTypes.GamePacket);
client.QueuePacket(BasePacket.CreatePacket(sp, true, false));
client.FlushQueuedSendPackets();
break;
}
else
{
Console.WriteLine("Client has connected but is not in Connected Player List.. Not sure what to do here");
}
}
else
{
Console.WriteLine("Ack not successful, removing from connected player list");
WorldServer.mConnectedPlayerList.TryRemove(ack.CharacterId, out Character unsuccessfulAckCharacter);
client.Disconnect();
}
break;
case (((ushort)GamePacketOpCode.Disconnect)):
DisconnectPacket dc = new DisconnectPacket(subPacket.data);
Console.WriteLine("Got DC packet");
WorldDatabase.RemoveFromOnlinePlayerList(dc.CharacterId);
WorldServer.mConnectedPlayerList.TryRemove(dc.CharacterId, out Character characterToDc);
client.Disconnect();
break;
//if everything okay
default:
break;
}
}
}