448 lines
19 KiB
C#
Executable file
448 lines
19 KiB
C#
Executable file
/*
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TShock, a server mod for Terraria
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Copyright (C) 2011 The TShock Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Text;
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using Microsoft.Xna.Framework;
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using Terraria;
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using TerrariaAPI;
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using XNAHelpers;
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namespace TShockAPI
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{
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public delegate bool GetDataHandlerDelegate(GetDataHandlerArgs args);
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public class GetDataHandlerArgs : EventArgs
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{
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public TSPlayer Player { get; private set; }
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public MemoryStream Data { get; private set; }
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public Player TPlayer
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{
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get { return Player.TPlayer; }
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}
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public GetDataHandlerArgs(TSPlayer player, MemoryStream data)
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{
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Player = player;
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Data = data;
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}
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}
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public static class GetDataHandlers
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{
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private static Dictionary<PacketTypes, GetDataHandlerDelegate> GetDataHandlerDelegates;
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private static bool[] BlacklistTiles;
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public static void InitGetDataHandler()
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{
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#region Blacklisted tiles
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BlacklistTiles = new bool[Main.maxTileSets];
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BlacklistTiles[0] = true;
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BlacklistTiles[1] = true;
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BlacklistTiles[2] = true;
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BlacklistTiles[6] = true;
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BlacklistTiles[7] = true;
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BlacklistTiles[8] = true;
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BlacklistTiles[9] = true;
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BlacklistTiles[22] = true;
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BlacklistTiles[23] = true;
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BlacklistTiles[25] = true;
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BlacklistTiles[30] = true;
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BlacklistTiles[37] = true;
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BlacklistTiles[38] = true;
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BlacklistTiles[39] = true;
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BlacklistTiles[40] = true;
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BlacklistTiles[41] = true;
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BlacklistTiles[43] = true;
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BlacklistTiles[44] = true;
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BlacklistTiles[45] = true;
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BlacklistTiles[46] = true;
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BlacklistTiles[47] = true;
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BlacklistTiles[53] = true;
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BlacklistTiles[54] = true;
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BlacklistTiles[56] = true;
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BlacklistTiles[57] = true;
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BlacklistTiles[58] = true;
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BlacklistTiles[59] = true;
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BlacklistTiles[60] = true;
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BlacklistTiles[63] = true;
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BlacklistTiles[64] = true;
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BlacklistTiles[65] = true;
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BlacklistTiles[66] = true;
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BlacklistTiles[67] = true;
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BlacklistTiles[68] = true;
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BlacklistTiles[70] = true;
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BlacklistTiles[75] = true;
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BlacklistTiles[76] = true;
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#endregion Blacklisted tiles
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GetDataHandlerDelegates = new Dictionary<PacketTypes, GetDataHandlerDelegate>
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{
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{PacketTypes.PlayerInfo, HandlePlayerInfo},
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{PacketTypes.TileSendSection, HandleSendSection},
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{PacketTypes.PlayerUpdate, HandlePlayerUpdate},
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{PacketTypes.Tile, HandleTile},
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{PacketTypes.TileSendSquare, HandleSendTileSquare},
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{PacketTypes.NPCUpdate, HandleNpcUpdate},
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{PacketTypes.PlayerDamage, HandlePlayerDamage},
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{PacketTypes.ProjectileNew, HandleProjectileNew},
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{PacketTypes.TogglePVP, HandleTogglePvp},
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{PacketTypes.TileKill, HandleTileKill},
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{PacketTypes.PlayerKillMe, HandlePlayerKillMe},
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{PacketTypes.LiquidSet, HandleLiquidSet},
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};
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}
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public static bool HandlerGetData(PacketTypes type, TSPlayer player, MemoryStream data)
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{
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GetDataHandlerDelegate handler;
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if (GetDataHandlerDelegates.TryGetValue(type, out handler))
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{
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try
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{
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return handler(new GetDataHandlerArgs(player, data));
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}
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catch (Exception ex)
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{
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Log.Error(ex.ToString());
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}
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}
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return false;
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}
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private static bool HandlePlayerInfo(GetDataHandlerArgs args)
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{
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byte playerid = args.Data.ReadInt8();
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byte hair = args.Data.ReadInt8();
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Color hairColor = new Color(args.Data.ReadInt8(), args.Data.ReadInt8(), args.Data.ReadInt8());
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Color skinColor = new Color(args.Data.ReadInt8(), args.Data.ReadInt8(), args.Data.ReadInt8());
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Color eyeColor = new Color(args.Data.ReadInt8(), args.Data.ReadInt8(), args.Data.ReadInt8());
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Color shirtColor = new Color(args.Data.ReadInt8(), args.Data.ReadInt8(), args.Data.ReadInt8());
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Color underShirtColor = new Color(args.Data.ReadInt8(), args.Data.ReadInt8(), args.Data.ReadInt8());
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Color pantsColor = new Color(args.Data.ReadInt8(), args.Data.ReadInt8(), args.Data.ReadInt8());
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Color shoeColor = new Color(args.Data.ReadInt8(), args.Data.ReadInt8(), args.Data.ReadInt8());
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string name = Encoding.ASCII.GetString(args.Data.ReadBytes((int)(args.Data.Length - args.Data.Position - 1)));
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if (hair >= Main.maxHair)
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{
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Tools.ForceKick(args.Player, "Hair crash exploit.");
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return true;
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}
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if (name.Length > 32)
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{
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Tools.ForceKick(args.Player, "Name exceeded 32 characters.");
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return true;
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}
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if (name.Trim().Length == 0)
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{
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Tools.ForceKick(args.Player, "Empty Name.");
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return true;
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}
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var ban = TShock.Bans.GetBanByName(name);
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if (ban != null)
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{
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Tools.ForceKick(args.Player, string.Format("You are banned: {0}", ban.Reason));
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return true;
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}
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if (args.Player.ReceivedInfo)
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{
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return Tools.HandleGriefer(args.Player, "Sent client info more than once");
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}
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args.Player.ReceivedInfo = true;
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return false;
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}
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private static bool HandleSendTileSquare(GetDataHandlerArgs args)
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{
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short size = args.Data.ReadInt16();
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int x = args.Data.ReadInt32();
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int y = args.Data.ReadInt32();
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int plyX = Math.Abs(args.Player.TileX);
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int plyY = Math.Abs(args.Player.TileY);
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int tileX = Math.Abs(x);
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int tileY = Math.Abs(y);
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if (size > 5 || (ConfigurationManager.RangeChecks && (Math.Abs(plyX - tileX) > 32 || Math.Abs(plyY - tileY) > 32)))
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{
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Log.Debug(string.Format("SendTileSquare(PlyXY:{0}_{1}, TileXY:{2}_{3}, Result:{4}_{5}, Size:{6})",
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plyX, plyY, tileX, tileY, Math.Abs(plyX - tileX), Math.Abs(plyY - tileY), size));
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return Tools.HandleGriefer(args.Player, "Send Tile Square Abuse");
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}
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return false;
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}
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private static bool HandleTile(GetDataHandlerArgs args)
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{
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byte type = args.Data.ReadInt8();
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int x = args.Data.ReadInt32();
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int y = args.Data.ReadInt32();
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byte tiletype = args.Data.ReadInt8();
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if (type == 1 || type == 3)
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{
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int plyX = Math.Abs(args.Player.TileX);
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int plyY = Math.Abs(args.Player.TileY);
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int tileX = Math.Abs(x);
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int tileY = Math.Abs(y);
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if (ConfigurationManager.RangeChecks && ((Math.Abs(plyX - tileX) > 32) || (Math.Abs(plyY - tileY) > 32)))
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{
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Log.Debug(string.Format("TilePlaced(PlyXY:{0}_{1}, TileXY:{2}_{3}, Result:{4}_{5}, Type:{6})",
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plyX, plyY, tileX, tileY, Math.Abs(plyX - tileX), Math.Abs(plyY - tileY), tiletype));
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return Tools.HandleGriefer(args.Player, "Placing impossible to place blocks.");
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}
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if (tiletype == 48 && !args.Player.Group.HasPermission("canspike"))
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{
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args.Player.SendMessage("You do not have permission to place spikes.", Color.Red);
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Tools.SendLogs(string.Format("{0} tried to place spikes", args.Player.Name), Color.Red);
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args.Player.SendTileSquare(x, y);
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return true;
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}
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}
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if (!args.Player.Group.HasPermission("editspawn") && RegionManager.InProtectedArea(x, y, Tools.GetPlayerIP(args.Player.Name)))
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{
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args.Player.SendMessage("Region protected from changes.", Color.Red);
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args.Player.SendTileSquare(x, y);
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return true;
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}
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if (ConfigurationManager.DisableBuild)
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{
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if (!args.Player.Group.HasPermission("editspawn"))
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{
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args.Player.SendMessage("World protected from changes.", Color.Red);
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args.Player.SendTileSquare(x, y);
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return true;
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}
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}
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if (ConfigurationManager.SpawnProtect)
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{
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if (!args.Player.Group.HasPermission("editspawn"))
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{
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var flag = TShock.CheckSpawn(x, y);
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if (flag)
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{
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args.Player.SendMessage("Spawn protected from changes.", Color.Red);
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args.Player.SendTileSquare(x, y);
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return true;
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}
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}
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}
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if (type == 0 && BlacklistTiles[Main.tile[x, y].type] && args.Player.Active)
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{
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args.Player.TileThreshold++;
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var coords = new Vector2(x, y);
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if (!args.Player.TilesDestroyed.ContainsKey(coords))
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args.Player.TilesDestroyed.Add(coords, Main.tile[x, y]);
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}
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return false;
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}
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private static bool HandleTogglePvp(GetDataHandlerArgs args)
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{
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int id = args.Data.ReadByte();
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bool pvp = args.Data.ReadBoolean();
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long seconds = (long)(DateTime.UtcNow - args.Player.LastPvpChange).TotalSeconds;
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if (ConfigurationManager.PvpThrottle > 0 && seconds < ConfigurationManager.PvpThrottle)
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{
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args.Player.SendMessage(string.Format("You cannot change pvp status for {0} seconds", ConfigurationManager.PvpThrottle - seconds), 255, 0, 0);
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args.Player.SetPvP(id != args.Player.Index || ConfigurationManager.PermaPvp ? true : args.TPlayer.hostile);
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}
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else
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{
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args.Player.SetPvP(id != args.Player.Index || ConfigurationManager.PermaPvp ? true : pvp);
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}
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return true;
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}
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private static bool HandleSendSection(GetDataHandlerArgs args)
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{
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return Tools.HandleGriefer(args.Player, "SendSection abuse.");
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}
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private static bool HandleNpcUpdate(GetDataHandlerArgs args)
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{
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return Tools.HandleGriefer(args.Player, "Spawn NPC abuse");
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}
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private static bool HandlePlayerUpdate(GetDataHandlerArgs args)
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{
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byte plr = args.Data.ReadInt8();
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byte control = args.Data.ReadInt8();
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byte item = args.Data.ReadInt8();
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float posx = args.Data.ReadSingle();
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float posy = args.Data.ReadSingle();
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float velx = args.Data.ReadSingle();
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float vely = args.Data.ReadSingle();
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if (Main.verboseNetplay)
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Debug.WriteLine("Update: {{{0},{1}}} {{{2}, {3}}}", (int)posx, (int)posy, (int)velx, (int)vely);
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if (plr != args.Player.Index)
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{
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return Tools.HandleGriefer(args.Player, "Update Player abuse");
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}
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return false;
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}
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private static bool HandleProjectileNew(GetDataHandlerArgs args)
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{
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short ident = args.Data.ReadInt16();
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float posx = args.Data.ReadSingle();
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float posy = args.Data.ReadSingle();
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float velx = args.Data.ReadSingle();
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float vely = args.Data.ReadSingle();
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float knockback = args.Data.ReadSingle();
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short dmg = args.Data.ReadInt16();
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byte owner = args.Data.ReadInt8();
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byte type = args.Data.ReadInt8();
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if (type == 29 || type == 28 || type == 37)
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{
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Log.Debug(string.Format("Explosive(PlyXY:{0}_{1}, Type:{2})", args.Player.TileX, args.Player.TileY, type));
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if (ConfigurationManager.DisableBoom && (!args.Player.Group.HasPermission("useexplosives") || !args.Player.Group.HasPermission("ignoregriefdetection")))
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{
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//Lag will still allow the projectile to detonate.
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//TODO: Stop KillTile for x period of time after projectile packet is received.
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Main.projectile[ident].type = 0;
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NetMessage.SendData((int)PacketTypes.ProjectileNew, args.Player.Index, -1, "", ident);
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args.Player.SendMessage("Explosives are disabled!", Color.Red);
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//return true;
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}
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else
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return Tools.HandleExplosivesUser(args.Player, "Throwing an explosive device.");
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}
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return false;
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}
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private static bool HandlePlayerKillMe(GetDataHandlerArgs args)
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{
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byte id = args.Data.ReadInt8();
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byte hitdirection = args.Data.ReadInt8();
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short dmg = args.Data.ReadInt16();
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bool pvp = args.Data.ReadBoolean();
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if (id != args.Player.Index)
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{
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return Tools.HandleGriefer(args.Player, "Trying to execute KillMe on someone else.");
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}
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return false;
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}
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private static bool HandlePlayerDamage(GetDataHandlerArgs args)
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{
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byte playerid = args.Data.ReadInt8();
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byte direction = args.Data.ReadInt8();
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Int16 damage = args.Data.ReadInt16();
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byte pvp = args.Data.ReadInt8();
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return !TShock.Players[playerid].TPlayer.hostile;
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}
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private static bool HandleLiquidSet(GetDataHandlerArgs args)
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{
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int x = args.Data.ReadInt32();
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int y = args.Data.ReadInt32();
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byte liquid = args.Data.ReadInt8();
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bool lava = args.Data.ReadBoolean();
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//The liquid was picked up.
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if (liquid == 0)
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return false;
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int plyX = Math.Abs(args.Player.TileX);
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int plyY = Math.Abs(args.Player.TileY);
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int tileX = Math.Abs(x);
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int tileY = Math.Abs(y);
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bool bucket = false;
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for (int i = 0; i < 44; i++)
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{
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if (args.TPlayer.inventory[i].type >= 205 && args.TPlayer.inventory[i].type <= 207)
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{
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bucket = true;
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break;
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}
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}
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if (lava && !args.Player.Group.HasPermission("canlava"))
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{
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args.Player.SendMessage("You do not have permission to use lava", Color.Red);
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Tools.SendLogs(string.Format("{0} tried using lava", args.Player.Name), Color.Red);
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args.Player.SendTileSquare(x, y);
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return true;
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}
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if (!lava && !args.Player.Group.HasPermission("canwater"))
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{
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args.Player.SendMessage("You do not have permission to use water", Color.Red);
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Tools.SendLogs(string.Format("{0} tried using water", args.Player.Name), Color.Red);
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args.Player.SendTileSquare(x, y);
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return true;
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}
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if (!bucket)
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{
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Log.Debug(string.Format("{0}(PlyXY:{1}_{2}, TileXY:{3}_{4}, Result:{5}_{6}, Amount:{7})",
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lava ? "Lava" : "Water", plyX, plyY, tileX, tileY,
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Math.Abs(plyX - tileX), Math.Abs(plyY - tileY), liquid));
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return Tools.HandleGriefer(args.Player, "Manipulating liquid without bucket."); ;
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}
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if (ConfigurationManager.RangeChecks && ((Math.Abs(plyX - tileX) > 32) || (Math.Abs(plyY - tileY) > 32)))
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{
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Log.Debug(string.Format("Liquid(PlyXY:{0}_{1}, TileXY:{2}_{3}, Result:{4}_{5}, Amount:{6})",
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plyX, plyY, tileX, tileY, Math.Abs(plyX - tileX), Math.Abs(plyY - tileY), liquid));
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return Tools.HandleGriefer(args.Player, "Placing impossible to place liquid."); ;
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}
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if (ConfigurationManager.SpawnProtect)
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{
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if (!args.Player.Group.HasPermission("editspawn"))
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{
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var flag = TShock.CheckSpawn(x, y);
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if (flag)
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{
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args.Player.SendMessage("The spawn is protected!", Color.Red);
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args.Player.SendTileSquare(x, y);
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return true;
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}
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}
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}
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return false;
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}
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private static bool HandleTileKill(GetDataHandlerArgs args)
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{
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int tilex = args.Data.ReadInt32();
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int tiley = args.Data.ReadInt32();
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if (tilex < 0 || tilex >= Main.maxTilesX || tiley < 0 || tiley >= Main.maxTilesY)
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return false;
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if (Main.tile[tilex, tiley].type != 0x15) //Chest
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{
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Log.Debug(string.Format("TileKill(TileXY:{0}_{1}, Type:{2})",
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tilex, tiley, Main.tile[tilex, tiley].type));
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Tools.ForceKick(args.Player, string.Format("Tile Kill abuse ({0})", Main.tile[tilex, tiley].type));
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return true;
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}
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return false;
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}
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}
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}
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