public static void MakeClientConnectToGameServer(DataTable result, int cid, int forcedMap = -1)
{
AuthCore core = (AuthCore)Server.the_core;
Int32.TryParse(result.Rows[0]["map"].ToString(), out int map);
Int32.TryParse(result.Rows[0]["id"].ToString(), out int pid);
if (forcedMap > 0)
{
map = forcedMap;
}
foreach (GameServer server in Config.GameServers)
{
if (server.maps.Contains(map))
{
using (Packet nPacket = new Packet((int)Packet.ServerPackets.goToServerAt))
{
nPacket.Write(cid);
nPacket.Write(core.Clients[cid].session_id);
nPacket.Write(server.addr);
nPacket.Write(server.port);
AuthCore.SendTCPData(cid, nPacket);
}
Logger.Syslog($"Client #{cid} is entering map #{map} on the server labeled '{server.label}' with pid #{pid} with a session id of {((AuthCore)Server.the_core).Clients[cid].session_id}...");
break;
}
else
{
Logger.Syserr($"Client #{cid} attempted to enter a character of pid {pid} on a non existing map #{map} !!!");
core.Clients[cid].tcp.Disconnect();
return;
}
}
}
public static void SendAlreadyConnectedPacket(int client)
{
using (Packet newPacket = new Packet((int)Packet.ServerPackets.alreadyConnected))
{
newPacket.Write(client);
AuthCore.SendTCPData(client, newPacket);
}
}
public static void SendAuthFailed(int client)
{
using (Packet newPacket = new Packet((int)Packet.ServerPackets.authResult))
{
newPacket.Write(client);
newPacket.Write(false);
AuthCore.SendTCPData(client, newPacket);
}
}
public static void SendCharacterSelectionDataToClient(int client, CharacterSelectionEntry[] characters)
{
AuthCore core = (AuthCore)Server.the_core;
using (Packet nPacket = new Packet((int)Packet.ServerPackets.charSelection))
{
nPacket.Write(client);
nPacket.Write(core.Clients[client].session_id);
for (int i = 0; i < Config.MaxCharactersInAccount; i++)
{
nPacket.Write(characters[i]);
}
AuthCore.SendTCPData(client, nPacket);
}
}
public override void Connect(TcpClient _socket)
{
configureSocket(_socket);
stream.BeginRead(receivedBuff, 0, buffer_size, ReceiveCallback, null);
/*
*
* A new client has connected to the authentication server
* This is NOT an authentication request, its just a heartbeat
* If we hear back a valid PONG response then we "allow" the client to request authentication
*/
using (Packet newPacket = new Packet((int)Packet.ServerPackets.connectSucess))
{
newPacket.Write("Ping?");
newPacket.Write(cid);
AuthCore.SendTCPData(cid, newPacket);
}
try { Logger.Syslog($"Client #{client.cid} ({AuthCore.GetClientIP(cid)}) connected to the authentication server"); } catch { Logger.Syslog("A client connected to the authentication server but we couldn't retrieve it's ip address."); }
}
public static void HandlePong(int fromClient, Packet packet)
{
int id = packet.ReadInt();
int pongLen = packet.ReadInt();
byte[] pong = packet.ReadBytes(pongLen);
if (id == fromClient)
{
byte[] hashed = Security.Hash("PONG" + fromClient, Security.GetSalt());
if (Security.Verify(pong, hashed))
{
using (Packet newPacket = new Packet((int)Packet.ServerPackets.requestAuth))
{
newPacket.Write(fromClient);
AuthCore.SendTCPData(fromClient, newPacket);
}
}
else
{
Logger.Syserr($"Invalid client pong received, disconnecting client #{id}");
Server.the_core.Clients[id].tcp.Disconnect();
}
}
}