public void SetConnection(int type, WorldClientConnection conn)
{
conn.connType = type;
switch (type)
{
case BasePacket.TYPE_ZONE:
zoneConnection = conn;
break;
case BasePacket.TYPE_CHAT:
chatConnection = conn;
break;
}
}
public void ProcessPacket(WorldClientConnection client, BasePacket packet)
{
this.client = client;
packet.debugPrintPacket();
List <SubPacket> subPackets = packet.GetSubpackets();
if (packet.header.connectionType == (ushort)BasePacketConnectionTypes.Connect)
{
ProcessConnectPackets(subPackets);
}
if (packet.header.connectionType == (ushort)BasePacketConnectionTypes.Zone)
{
processZonePackets(subPackets);
}
}
private void AcceptCallback(IAsyncResult result)
{
WorldClientConnection conn = null;
Socket socket = (Socket)result.AsyncState;
try
{
conn = new WorldClientConnection();
conn.socket = socket.EndAccept(result);
conn.buffer = new byte[BUFFER_SIZE];
lock (mConnectionList)
{
mConnectionList.Add(conn);
}
conn.ClientIpAddress = (conn.socket.RemoteEndPoint as IPEndPoint).Address;
conn.ClientPort = (conn.socket.RemoteEndPoint as IPEndPoint).Port;
Console.WriteLine("Connection {0}:{1} has connected.", (conn.socket.RemoteEndPoint as IPEndPoint).Address, (conn.socket.RemoteEndPoint as IPEndPoint).Port);
//Queue recieving of data from the connection
conn.socket.BeginReceive(conn.buffer, 0, conn.buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), conn);
//Queue the accept of the next incomming connection
mServerSocket.BeginAccept(new AsyncCallback(AcceptCallback), mServerSocket);
}
catch (SocketException)
{
if (conn != null)
{
lock (mConnectionList)
{
mConnectionList.Remove(conn);
}
}
mServerSocket.BeginAccept(new AsyncCallback(AcceptCallback), mServerSocket);
}
catch (Exception)
{
if (conn != null)
{
lock (mConnectionList)
{
mConnectionList.Remove(conn);
}
}
mServerSocket.BeginAccept(new AsyncCallback(AcceptCallback), mServerSocket);
}
}
public void ProcessPacket(WorldClientConnection client, BasePacket packet)
{
this.client = client;
packet.debugPrintPacket();
List <SubPacket> subPackets = packet.GetSubpackets();
/* if (packet.header.connectionType == (ushort)BasePacketConnectionTypes.Zone)
* {
* ProcessZonePackets(subPackets);
* //do zone stuff here
* }
* if (packet.header.connectionType == (ushort)BasePacketConnectionTypes.Chat)
* {
* ProcessChatPackets(subPackets);
* //do chat stuff here
* }*/
if (packet.header.connectionType == (ushort)BasePacketConnectionTypes.Generic)
{
ProcessGenericPackets(subPackets);
}
}
/// <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;
}
}
}
/*
* public static Actor GetStaticActors(uint id)
* {
* return mStaticActors.GetActor(id);
* }
*
* public static Actor GetStaticActors(string name)
* {
* return mStaticActors.FindStaticActor(name);
* }
*
* public static Item GetItemGamedata(uint id)
* {
* if (gamedataItems.ContainsKey(id))
* return gamedataItems[id];
* else
* return null;
* }*/
/// <summary>
/// Receive Callback. Reads in incoming data, converting them to base packets. Base packets are sent to be parsed. If not enough data at the end to build a basepacket, move to the beginning and prepend.
/// </summary>
/// <param name="result"></param>
private void ReceiveCallback(IAsyncResult result)
{
WorldClientConnection conn = (WorldClientConnection)result.AsyncState;
//Check if disconnected
if ((conn.socket.Poll(1, SelectMode.SelectRead) && conn.socket.Available == 0))
{
lock (mConnectionList)
{
mConnectionList.Remove(conn);
}
if (conn.connType == BasePacket.TYPE_ZONE)
{
Console.WriteLine("{0} has disconnected.", conn.owner == 0 ? conn.GetFullAddress() : "User " + conn.owner);
}
return;
}
try
{
int bytesRead = conn.socket.EndReceive(result);
bytesRead += conn.lastPartialSize;
if (bytesRead >= 0)
{
int offset = 0;
//Build packets until can no longer or out of data
while (true)
{
BasePacket basePacket = BuildPacket(ref offset, conn.buffer, bytesRead);
//If can't build packet, break, else process another
if (basePacket == null)
{
break;
}
else
{
mProcessor.ProcessPacket(conn, basePacket);
}
}
//Not all bytes consumed, transfer leftover to beginning
if (offset < bytesRead)
{
Array.Copy(conn.buffer, offset, conn.buffer, 0, bytesRead - offset);
}
conn.lastPartialSize = bytesRead - offset;
//Build any queued subpackets into basepackets and send
conn.FlushQueuedSendPackets();
if (offset < bytesRead)
{
//Need offset since not all bytes consumed
conn.socket.BeginReceive(conn.buffer, bytesRead - offset, conn.buffer.Length - (bytesRead - offset), SocketFlags.None, new AsyncCallback(ReceiveCallback), conn);
}
else
{
//All bytes consumed, full buffer available
conn.socket.BeginReceive(conn.buffer, 0, conn.buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), conn);
}
}
else
{
Console.WriteLine("{0} has disconnected.", conn.owner == 0 ? conn.GetFullAddress() : "User " + conn.owner);
lock (mConnectionList)
{
mConnectionList.Remove(conn);
}
}
}
catch (SocketException)
{
if (conn.socket != null)
{
Console.WriteLine("{0} has disconnected.", conn.owner == 0 ? conn.GetFullAddress() : "User " + conn.owner);
lock (mConnectionList)
{
mConnectionList.Remove(conn);
}
}
}
}
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;
}
}
}