using System;
using System.IO;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using HISP.Player;
using HISP.Game;
using HISP.Game.Horse;
namespace HISP.Server
{
public class GameClient
{
public Socket ClientSocket;
public string RemoteIp;
public bool LoggedIn = false;
public User LoggedinUser;
private Thread recvPackets;
private Timer inactivityTimer;
private Timer warnTimer;
private Timer kickTimer;
private Timer minuteTimer;
private bool isDisconnecting = false;
private int keepAliveInterval = 60 * 1000;
private int totalMinutesElapsed = 0;
private int oneMinute = 60 * 1000;
private int warnInterval = GameServer.IdleWarning * 60 * 1000;
private int kickInterval = GameServer.IdleTimeout * 60 * 1000;
private bool dcLock = false;
private void minuteTimerTick(object state)
{
dcLock = true;
totalMinutesElapsed++;
if (LoggedIn)
{
LoggedinUser.FreeMinutes -= 1;
if (LoggedinUser.FreeMinutes <= 0)
{
LoggedinUser.FreeMinutes = 0;
if (!LoggedinUser.Subscribed && !LoggedinUser.Moderator && !LoggedinUser.Administrator)
{
dcLock = false;
Kick(Messages.KickReasonNoTime);
return;
}
}
bool gotoPrision = false;
foreach(HorseInstance horse in LoggedinUser.HorseInventory.HorseList)
{
if (totalMinutesElapsed % 2 == 0)
{
horse.BasicStats.Thirst--;
horse.BasicStats.Hunger--;
if (horse.BasicStats.Thirst <= 0 && horse.BasicStats.Hunger <= 0)
{
horse.BasicStats.Health -= 5;
if(horse.BasicStats.Hunger <= 0)
{
gotoPrision = true; // Goto jail, go directly to jail, do not pass go, do not collect 200$
horse.BasicStats.Health = 10;
horse.BasicStats.Hunger = 500;
horse.BasicStats.Thirst = 500;
}
}
}
if(horse.Leaser > 0)
{
horse.LeaseTime--;
if (horse.LeaseTime <= 0)
{
int tpX = 0;
int tpY = 0;
if(horse.Breed.Type == "unicorn" || horse.Breed.Type == "pegasus")
{
foreach (World.SpecialTile tile in World.SpecialTiles)
{
if (tile.Code == null)
continue;
if (tile.Code.StartsWith("HORSELEASER-"))
{
int id = int.Parse(tile.Code.Split("-")[1]);
if (horse.Leaser == id)
{
string msg = Messages.FormatHorseReturnedToUniter(horse.Breed.Name);
if (horse.Breed.Type == "pegasus")
msg = Messages.HorseLeaserReturnedToUniterPegasus;
byte[] youWereTeleportedToUniter = PacketBuilder.CreateChat(msg, PacketBuilder.CHAT_BOTTOM_RIGHT);
SendPacket(youWereTeleportedToUniter);
tpX = tile.X;
tpY = tile.Y;
if(tile.ExitX != 0 && tile.ExitY != 0)
{
tpX = tile.ExitX;
tpY = tile.ExitY;
}
else
{
tpY++;
}
}
}
}
}
byte[] horseReturned = PacketBuilder.CreateChat(Messages.FormatHorseReturnedToOwner(horse.Name), PacketBuilder.CHAT_BOTTOM_RIGHT);
SendPacket(horseReturned);
if(tpX != 0 && tpY != 0)
LoggedinUser.Teleport(tpX, tpY);
if (LoggedinUser.CurrentlyRidingHorse != null)
{
if(LoggedinUser.CurrentlyRidingHorse.RandomId == horse.RandomId)
{
GameServer.StopRidingHorse(this);
}
}
if(LoggedinUser.LastViewedHorse != null)
{
if(LoggedinUser.LastViewedHorse.RandomId == horse.RandomId)
{
LoggedinUser.LastViewedHorse = null;
}
}
LoggedinUser.HorseInventory.DeleteHorse(horse);
}
}
}
if(gotoPrision)
{
byte[] sendToPrision = PacketBuilder.CreateChat(Messages.YouWereSentToPrisionIsle, PacketBuilder.CHAT_BOTTOM_RIGHT);
SendPacket(sendToPrision);
LoggedinUser.Teleport(45, 35);
}
if (totalMinutesElapsed % 2 == 0)
{
LoggedinUser.Thirst--;
LoggedinUser.Hunger--;
}
if (totalMinutesElapsed % 10 == 0)
LoggedinUser.Tiredness--;
}
if (!isDisconnecting)
minuteTimer.Change(oneMinute, oneMinute);
dcLock = false;
}
private void keepAliveTimerTick(object state)
{
Logger.DebugPrint("Sending keep-alive packet to "+ LoggedinUser.Username);
byte[] updatePacket = PacketBuilder.CreateKeepAlive();
SendPacket(updatePacket);
}
private void warnTimerTick(object state)
{
Logger.DebugPrint("Sending inactivity warning to: " + RemoteIp);
byte[] chatPacket = PacketBuilder.CreateChat(Messages.FormatIdleWarningMessage(), PacketBuilder.CHAT_BOTTOM_RIGHT);
SendPacket(chatPacket);
if (LoggedIn)
LoggedinUser.Idle = true;
warnTimer.Dispose();
warnTimer = null;
}
private void kickTimerTick(object state)
{
Kick(Messages.FormatIdleKickMessage());
}
public void Login(int id)
{
// Check for duplicate
foreach(GameClient Client in GameServer.ConnectedClients)
{
if(Client.LoggedIn)
{
if (Client.LoggedinUser.Id == id)
Client.Kick(Messages.KickReasonDuplicateLogin);
}
}
LoggedinUser = new User(this,id);
LoggedIn = true;
Database.SetIpAddress(id, RemoteIp);
inactivityTimer = new Timer(new TimerCallback(keepAliveTimerTick), null, keepAliveInterval, keepAliveInterval);
}
private bool receivePackets()
{
// HI1 Packets are terminates by 0x00 so we have to read until we receive that terminator
while(ClientSocket.Connected && !isDisconnecting)
{
if(isDisconnecting)
break;
try
{
using (MemoryStream ms = new MemoryStream())
{
if (ClientSocket.Available >= 1)
{
byte[] buffer = new byte[ClientSocket.Available];
ClientSocket.Receive(buffer);
foreach (Byte b in buffer)
{
if (isDisconnecting)
break;
ms.WriteByte(b);
if (b == 0x00)
{
ms.Seek(0x00, SeekOrigin.Begin);
byte[] fullPacket = ms.ToArray();
parsePackets(fullPacket);
ms.Seek(0x00, SeekOrigin.Begin);
ms.SetLength(0);
}
}
}
}
}
catch(SocketException)
{
Disconnect();
break;
}
}
while (dcLock) { }; // Refuse to shut down until dcLock is cleared. (prevents TOCTOU issues.)
// Stop Timers
if(inactivityTimer != null)
inactivityTimer.Dispose();
if(warnTimer != null)
warnTimer.Dispose();
if(kickTimer != null)
kickTimer.Dispose();
// Call OnDisconnect
GameServer.OnDisconnect(this);
LoggedIn = false;
LoggedinUser = null;
// Close Sockets
ClientSocket.Close();
ClientSocket.Dispose();
return isDisconnecting; // Stop the thread.
}
private void parsePackets(byte[] Packet)
{
if (Packet.Length < 1)
{
Logger.ErrorPrint("Received an invalid packet (size: "+Packet.Length+")");
}
byte identifier = Packet[0];
// Reset timers
if (inactivityTimer != null && identifier != PacketBuilder.PACKET_KEEP_ALIVE)
{
if (LoggedIn)
LoggedinUser.Idle = false;
inactivityTimer.Change(keepAliveInterval, keepAliveInterval);
}
if (kickTimer != null && identifier != PacketBuilder.PACKET_KEEP_ALIVE)
kickTimer = new Timer(new TimerCallback(kickTimerTick), null, kickInterval, kickInterval);
if (warnTimer != null && identifier != PacketBuilder.PACKET_KEEP_ALIVE)
warnTimer = new Timer(new TimerCallback(warnTimerTick), null, warnInterval, warnInterval);
if (!LoggedIn) // Must be either login or policy-file-request
{
if (Encoding.UTF8.GetString(Packet).StartsWith("<policy-file-request/>")) // Policy File Request
{
GameServer.OnCrossdomainPolicyRequest(this);
}
switch (identifier)
{
case PacketBuilder.PACKET_LOGIN:
GameServer.OnLoginRequest(this, Packet);
break;
}
}
else
{
switch (identifier)
{
case PacketBuilder.PACKET_LOGIN:
GameServer.OnUserInfoRequest(this, Packet);
break;
case PacketBuilder.PACKET_MOVE:
GameServer.OnMovementPacket(this, Packet);
break;
case PacketBuilder.PACKET_PLAYERINFO:
GameServer.OnPlayerInfoPacket(this, Packet);
break;
case PacketBuilder.PACKET_PLAYER:
GameServer.OnProfilePacket(this, Packet);
break;
case PacketBuilder.PACKET_CHAT:
GameServer.OnChatPacket(this, Packet);
break;
case PacketBuilder.PACKET_CLICK:
GameServer.OnClickPacket(this, Packet);
break;
case PacketBuilder.PACKET_KEEP_ALIVE:
GameServer.OnKeepAlive(this, Packet);
break;
case PacketBuilder.PACKET_TRANSPORT:
GameServer.OnTransportUsed(this, Packet);
break;
case PacketBuilder.PACKET_INVENTORY:
GameServer.OnInventoryRequested(this, Packet);
break;
case PacketBuilder.PACKET_DYNAMIC_BUTTON:
GameServer.OnDynamicButtonPressed(this, Packet);
break;
case PacketBuilder.PACKET_DYNAMIC_INPUT:
GameServer.OnDynamicInputReceived(this, Packet);
break;
case PacketBuilder.PACKET_ITEM_INTERACTION:
GameServer.OnItemInteraction(this,Packet);
break;
case PacketBuilder.PACKET_ARENA_SCORE:
GameServer.OnArenaScored(this, Packet);
break;
case PacketBuilder.PACKET_QUIT:
GameServer.OnQuitPacket(this, Packet);
break;
case PacketBuilder.PACKET_NPC:
GameServer.OnNpcInteraction(this, Packet);
break;
case PacketBuilder.PACKET_BIRDMAP:
GameServer.OnBirdMapRequested(this, Packet);
break;
case PacketBuilder.PACKET_SWFMODULE:
GameServer.OnSwfModuleCommunication(this, Packet);
break;
case PacketBuilder.PACKET_HORSE:
GameServer.OnHorseInteraction(this, Packet);
break;
case PacketBuilder.PACKET_WISH:
GameServer.OnWish(this, Packet);
break;
case PacketBuilder.PACKET_RANCH:
GameServer.OnRanchPacket(this, Packet);
break;
default:
Logger.ErrorPrint("Unimplemented Packet: " + BitConverter.ToString(Packet).Replace('-', ' '));
break;
}
}
}
public void Disconnect()
{
// Cant outright stop threads anymore in .NET core,
// Lets just let the thread stop gracefully.
this.isDisconnecting = true;
}
public void Kick(string Reason)
{
byte[] kickPacket = PacketBuilder.CreateKickMessage(Reason);
SendPacket(kickPacket);
Disconnect();
Logger.InfoPrint("CLIENT: "+RemoteIp+" KICKED for: "+Reason);
}
public void SendPacket(byte[] PacketData)
{
try
{
ClientSocket.Send(PacketData);
}
catch (Exception e)
{
if(!(e is SocketException))
Logger.ErrorPrint("Exception occured: " + e.Message);
Disconnect();
}
}
public GameClient(Socket clientSocket)
{
ClientSocket = clientSocket;
RemoteIp = clientSocket.RemoteEndPoint.ToString();
if(RemoteIp.Contains(":"))
RemoteIp = RemoteIp.Substring(0, RemoteIp.IndexOf(":"));
Logger.DebugPrint("Client connected @ " + RemoteIp);
kickTimer = new Timer(new TimerCallback(kickTimerTick), null, kickInterval, kickInterval);
warnTimer = new Timer(new TimerCallback(warnTimerTick), null, warnInterval, warnInterval);
minuteTimer = new Timer(new TimerCallback(minuteTimerTick), null, oneMinute, oneMinute);
recvPackets = new Thread(() =>
{
receivePackets();
});
recvPackets.Start();
}
}
}