TShock/TShockAPI/Bouncer.cs
Lucas Nicodemus c46dae328d Optimize imports
I now have VSCode installed for one reason: to optimize imports.

This required:

1. Installing VSCode.
2. Installing OmniSharp in VSCode.
3. Installing .NET Core so that OmniSharp could start in VSCode.

VSCode is a Microsoft product. It doesn't ship .NET Core. Or Omni
Sharp. Instead, you have to do all of this yourself.

It's not batteries included or anything.

It's actually harder to use OmniSharp in VSCode than it is to use
it in Sublime Text. Except Sublime Text's OmniSharp maintainer
went off and abandoned the project without telling anyone at OmniS
harp. Which gave me the idea that OmniSharp still was maintained
on Sublime Text.

And I just upgraded my Sublime Text license today.

Thanks OmniSharp developer.
2017-12-06 23:37:09 -07:00

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22 KiB
C#

/*
TShock, a server mod for Terraria
Copyright (C) 2011-2017 Nyx Studios (fka. The TShock Team)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using Terraria.ID;
using TShockAPI.DB;
using TShockAPI.Net;
using Terraria;
using Microsoft.Xna.Framework;
using OTAPI.Tile;
using TShockAPI.Localization;
using static TShockAPI.GetDataHandlers;
using TerrariaApi.Server;
namespace TShockAPI
{
/// <summary>Bouncer is the TShock anti-hack and build guardian system</summary>
internal sealed class Bouncer
{
/// <summary>Constructor call initializes Bouncer & related functionality.</summary>
/// <returns>A new Bouncer.</returns>
internal Bouncer(TerrariaPlugin pluginInstance)
{
// Setup hooks
GetDataHandlers.SendTileSquare.Register(OnSendTileSquare);
GetDataHandlers.HealOtherPlayer.Register(OnHealOtherPlayer);
GetDataHandlers.TileEdit.Register(OnTileEdit);
}
internal void OnTileEdit(object sender, GetDataHandlers.TileEditEventArgs args)
{
EditAction action = args.Action;
int tileX = args.X;
int tileY = args.Y;
short editData = args.EditData;
EditType type = args.editDetail;
byte style = args.Style;
try
{
if (editData < 0)
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
if (!TShock.Utils.TilePlacementValid(tileX, tileY))
args.Handled = true;
return;
if (action == EditAction.KillTile && Main.tile[tileX, tileY].type == TileID.MagicalIceBlock)
args.Handled = false;
return;
if (args.Player.Dead && TShock.Config.PreventDeadModification)
args.Handled = true;
return;
if (args.Player.AwaitingName)
{
bool includeUnprotected = false;
bool includeZIndexes = false;
bool persistentMode = false;
foreach (string parameter in args.Player.AwaitingNameParameters)
{
if (parameter.Equals("-u", StringComparison.InvariantCultureIgnoreCase))
includeUnprotected = true;
if (parameter.Equals("-z", StringComparison.InvariantCultureIgnoreCase))
includeZIndexes = true;
if (parameter.Equals("-p", StringComparison.InvariantCultureIgnoreCase))
persistentMode = true;
}
List<string> outputRegions = new List<string>();
foreach (Region region in TShock.Regions.Regions.OrderBy(r => r.Z).Reverse())
{
if (!includeUnprotected && !region.DisableBuild)
continue;
if (tileX < region.Area.Left || tileX > region.Area.Right)
continue;
if (tileY < region.Area.Top || tileY > region.Area.Bottom)
continue;
string format = "{1}";
if (includeZIndexes)
format = "{1} (z:{0})";
outputRegions.Add(string.Format(format, region.Z, region.Name));
}
if (outputRegions.Count == 0)
{
if (includeUnprotected)
args.Player.SendInfoMessage("There are no regions at this point.");
else
args.Player.SendInfoMessage("There are no regions at this point or they are not protected.");
}
else
{
if (includeUnprotected)
args.Player.SendSuccessMessage("Regions at this point:");
else
args.Player.SendSuccessMessage("Protected regions at this point:");
foreach (string line in PaginationTools.BuildLinesFromTerms(outputRegions))
args.Player.SendMessage(line, Color.White);
}
if (!persistentMode)
{
args.Player.AwaitingName = false;
args.Player.AwaitingNameParameters = null;
}
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
if (args.Player.AwaitingTempPoint > 0)
{
args.Player.TempPoints[args.Player.AwaitingTempPoint - 1].X = tileX;
args.Player.TempPoints[args.Player.AwaitingTempPoint - 1].Y = tileY;
args.Player.SendInfoMessage("Set temp point {0}.", args.Player.AwaitingTempPoint);
args.Player.SendTileSquare(tileX, tileY, 4);
args.Player.AwaitingTempPoint = 0;
args.Handled = true;
return;
}
Item selectedItem = args.Player.SelectedItem;
int lastKilledProj = args.Player.LastKilledProjectile;
ITile tile = Main.tile[tileX, tileY];
if (action == EditAction.PlaceTile)
{
if (TShock.TileBans.TileIsBanned(editData, args.Player))
{
args.Player.SendTileSquare(tileX, tileY, 1);
args.Player.SendErrorMessage("You do not have permission to place this tile.");
args.Handled = true;
return;
}
}
if (action == EditAction.KillTile && !Main.tileCut[tile.type] && !breakableTiles.Contains(tile.type))
{
//TPlayer.mount.Type 8 => Drill Containment Unit.
// If the tile is an axe tile and they aren't selecting an axe, they're hacking.
if (Main.tileAxe[tile.type] && ((args.Player.TPlayer.mount.Type != 8 && selectedItem.axe == 0) && !ItemID.Sets.Explosives[selectedItem.netID] && args.Player.RecentFuse == 0))
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
// If the tile is a hammer tile and they aren't selecting a hammer, they're hacking.
else if (Main.tileHammer[tile.type] && ((args.Player.TPlayer.mount.Type != 8 && selectedItem.hammer == 0) && !ItemID.Sets.Explosives[selectedItem.netID] && args.Player.RecentFuse == 0))
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
// If the tile is a pickaxe tile and they aren't selecting a pickaxe, they're hacking.
// Item frames can be modified without pickaxe tile.
else if (tile.type != TileID.ItemFrame
&& !Main.tileAxe[tile.type] && !Main.tileHammer[tile.type] && tile.wall == 0 && args.Player.TPlayer.mount.Type != 8 && selectedItem.pick == 0 && !ItemID.Sets.Explosives[selectedItem.netID] && args.Player.RecentFuse == 0)
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
}
else if (action == EditAction.KillWall)
{
// If they aren't selecting a hammer, they could be hacking.
if (selectedItem.hammer == 0 && !ItemID.Sets.Explosives[selectedItem.netID] && args.Player.RecentFuse == 0 && selectedItem.createWall == 0)
{
args.Player.SendTileSquare(tileX, tileY, 1);
args.Handled = true;
return;
}
}
else if (action == EditAction.PlaceTile && (projectileCreatesTile.ContainsKey(lastKilledProj) && editData == projectileCreatesTile[lastKilledProj]))
{
args.Player.LastKilledProjectile = 0;
}
else if (action == EditAction.PlaceTile || action == EditAction.PlaceWall)
{
if ((action == EditAction.PlaceTile && TShock.Config.PreventInvalidPlaceStyle) &&
(MaxPlaceStyles.ContainsKey(editData) && style > MaxPlaceStyles[editData]) &&
(ExtraneousPlaceStyles.ContainsKey(editData) && style > ExtraneousPlaceStyles[editData]))
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
// If they aren't selecting the item which creates the tile or wall, they're hacking.
if (!(selectedItem.netID == ItemID.IceRod && editData == TileID.MagicalIceBlock) &&
(editData != (action == EditAction.PlaceTile ? selectedItem.createTile : selectedItem.createWall) &&
!(ropeCoilPlacements.ContainsKey(selectedItem.netID) && editData == ropeCoilPlacements[selectedItem.netID])))
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
// Using the actuation accessory can lead to actuator hacking
if (TShock.Itembans.ItemIsBanned("Actuator", args.Player) && args.Player.TPlayer.autoActuator)
{
args.Player.SendTileSquare(tileX, tileY, 1);
args.Player.SendErrorMessage("You do not have permission to place actuators.");
args.Handled = true;
return;
}
if (TShock.Itembans.ItemIsBanned(EnglishLanguage.GetItemNameById(selectedItem.netID), args.Player) || editData >= (action == EditAction.PlaceTile ? Main.maxTileSets : Main.maxWallTypes))
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
if (action == EditAction.PlaceTile && (editData == 29 || editData == 97) && Main.ServerSideCharacter)
{
args.Player.SendErrorMessage("You cannot place this tile because server side characters are enabled.");
args.Player.SendTileSquare(tileX, tileY, 3);
args.Handled = true;
return;
}
if (action == EditAction.PlaceTile && (editData == TileID.Containers || editData == TileID.Containers2))
{
if (TShock.Utils.MaxChests())
{
args.Player.SendErrorMessage("The world's chest limit has been reached - unable to place more.");
args.Player.SendTileSquare(tileX, tileY, 3);
args.Handled = true;
return;
}
if ((TShock.Utils.TilePlacementValid(tileX, tileY + 1) && Main.tile[tileX, tileY + 1].type == TileID.Boulder) ||
(TShock.Utils.TilePlacementValid(tileX + 1, tileY + 1) && Main.tile[tileX + 1, tileY + 1].type == TileID.Boulder))
{
args.Player.SendTileSquare(tileX, tileY, 3);
args.Handled = true;
return;
}
}
}
else if (action == EditAction.PlaceWire || action == EditAction.PlaceWire2 || action == EditAction.PlaceWire3)
{
// If they aren't selecting a wrench, they're hacking.
// WireKite = The Grand Design
if (selectedItem.type != ItemID.Wrench
&& selectedItem.type != ItemID.BlueWrench
&& selectedItem.type != ItemID.GreenWrench
&& selectedItem.type != ItemID.YellowWrench
&& selectedItem.type != ItemID.MulticolorWrench
&& selectedItem.type != ItemID.WireKite)
{
args.Player.SendTileSquare(tileX, tileY, 1);
args.Handled = true;
return;
}
}
else if (action == EditAction.KillActuator || action == EditAction.KillWire ||
action == EditAction.KillWire2 || action == EditAction.KillWire3)
{
// If they aren't selecting the wire cutter, they're hacking.
if (selectedItem.type != ItemID.WireCutter
&& selectedItem.type != ItemID.WireKite
&& selectedItem.type != ItemID.MulticolorWrench)
{
args.Player.SendTileSquare(tileX, tileY, 1);
args.Handled = true;
return;
}
}
else if (action == EditAction.PlaceActuator)
{
// If they aren't selecting the actuator and don't have the Presserator equipped, they're hacking.
if (selectedItem.type != ItemID.Actuator && !args.Player.TPlayer.autoActuator)
{
args.Player.SendTileSquare(tileX, tileY, 1);
args.Handled = true;
return;
}
}
if (TShock.Config.AllowCutTilesAndBreakables && Main.tileCut[tile.type])
{
if (action == EditAction.KillWall)
{
args.Player.SendTileSquare(tileX, tileY, 1);
args.Handled = true;
return;
}
args.Handled = false;
return;
}
if (TShock.CheckIgnores(args.Player))
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
if (TShock.CheckTilePermission(args.Player, tileX, tileY, editData, action))
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
if (TShock.CheckRangePermission(args.Player, tileX, tileY))
{
if (action == EditAction.PlaceTile && (editData == TileID.Rope || editData == TileID.SilkRope || editData == TileID.VineRope || editData == TileID.WebRope))
{
args.Handled = false;
return;
}
if (action == EditAction.KillTile || action == EditAction.KillWall && ItemID.Sets.Explosives[selectedItem.netID] && args.Player.RecentFuse == 0)
{
args.Handled = false;
return;
}
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
if (args.Player.TileKillThreshold >= TShock.Config.TileKillThreshold)
{
args.Player.Disable("Reached TileKill threshold.", DisableFlags.WriteToLogAndConsole);
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
if (args.Player.TilePlaceThreshold >= TShock.Config.TilePlaceThreshold)
{
args.Player.Disable("Reached TilePlace threshold.", DisableFlags.WriteToLogAndConsole);
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
if ((DateTime.UtcNow - args.Player.LastThreat).TotalMilliseconds < 5000)
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
if ((action == EditAction.PlaceTile || action == EditAction.PlaceWall) && !args.Player.HasPermission(Permissions.ignoreplacetiledetection))
{
args.Player.TilePlaceThreshold++;
var coords = new Vector2(tileX, tileY);
lock (args.Player.TilesCreated)
if (!args.Player.TilesCreated.ContainsKey(coords))
args.Player.TilesCreated.Add(coords, Main.tile[tileX, tileY]);
}
if ((action == EditAction.KillTile || action == EditAction.KillTileNoItem || action == EditAction.KillWall) && Main.tileSolid[Main.tile[tileX, tileY].type] &&
!args.Player.HasPermission(Permissions.ignorekilltiledetection))
{
args.Player.TileKillThreshold++;
var coords = new Vector2(tileX, tileY);
lock (args.Player.TilesDestroyed)
if (!args.Player.TilesDestroyed.ContainsKey(coords))
args.Player.TilesDestroyed.Add(coords, Main.tile[tileX, tileY]);
}
args.Handled = false;
return;
}
catch
{
args.Player.SendTileSquare(tileX, tileY, 4);
args.Handled = true;
return;
}
}
/// <summary>The handler for the HealOther events in Bouncer</summary>
/// <param name="sender">sender</param>
/// <param name="args">args</param>
internal void OnHealOtherPlayer(object sender, GetDataHandlers.HealOtherPlayerEventArgs args)
{
short amount = args.Amount;
byte plr = args.TargetPlayerIndex;
if (amount <= 0 || Main.player[plr] == null || !Main.player[plr].active)
{
args.Handled = true;
return;
}
if (amount > TShock.Config.MaxDamage * 0.2)
{
args.Player.Disable("HealOtherPlayer cheat attempt!", DisableFlags.WriteToLogAndConsole);
args.Handled = true;
return;
}
if (args.Player.HealOtherThreshold > TShock.Config.HealOtherThreshold)
{
args.Player.Disable("Reached HealOtherPlayer threshold.", DisableFlags.WriteToLogAndConsole);
args.Handled = true;
return;
}
if (TShock.CheckIgnores(args.Player) || (DateTime.UtcNow - args.Player.LastThreat).TotalMilliseconds < 5000)
{
args.Handled = true;
return;
}
args.Player.HealOtherThreshold++;
args.Handled = false;
return;
}
/// <summary>The handler for SendTileSquare events in Bouncer</summary>
/// <param name="sender">sender</param>
/// <param name="args">args</param>
internal void OnSendTileSquare(object sender, GetDataHandlers.SendTileSquareEventArgs args)
{
short size = args.Size;
int tileX = args.TileX;
int tileY = args.TileY;
if (args.Player.HasPermission(Permissions.allowclientsideworldedit))
{
args.Handled = false;
return;
}
// From White:
// IIRC it's because 5 means a 5x5 square which is normal for a tile square, and anything bigger is a non-vanilla tile modification attempt
if (size > 5)
{
args.Handled = true;
return;
}
if ((DateTime.UtcNow - args.Player.LastThreat).TotalMilliseconds < 5000)
{
args.Player.SendTileSquare(tileX, tileY, size);
args.Handled = true;
return;
}
if (TShock.CheckIgnores(args.Player))
{
args.Player.SendTileSquare(tileX, tileY, size);
args.Handled = true;
return;
}
try
{
var tiles = new NetTile[size, size];
for (int x = 0; x < size; x++)
{
for (int y = 0; y < size; y++)
{
tiles[x, y] = new NetTile(args.Data);
}
}
bool changed = false;
for (int x = 0; x < size; x++)
{
int realx = tileX + x;
if (realx < 0 || realx >= Main.maxTilesX)
continue;
for (int y = 0; y < size; y++)
{
int realy = tileY + y;
if (realy < 0 || realy >= Main.maxTilesY)
continue;
var tile = Main.tile[realx, realy];
var newtile = tiles[x, y];
if (TShock.CheckTilePermission(args.Player, realx, realy) ||
TShock.CheckRangePermission(args.Player, realx, realy))
{
continue;
}
// Fixes the Flower Boots not creating flowers issue
if (size == 1 && args.Player.Accessories.Any(i => i.active && i.netID == ItemID.FlowerBoots))
{
if (Main.tile[realx, realy + 1].type == TileID.Grass && (newtile.Type == TileID.Plants || newtile.Type == TileID.Plants2))
{
args.Handled = false;
return;
}
if (Main.tile[realx, realy + 1].type == TileID.HallowedGrass && (newtile.Type == TileID.HallowedPlants || newtile.Type == TileID.HallowedPlants2))
{
args.Handled = false;
return;
}
if (Main.tile[realx, realy + 1].type == TileID.JungleGrass && newtile.Type == TileID.JunglePlants2)
{
args.Handled = false;
return;
}
}
// Junction Box
if (tile.type == TileID.WirePipe)
{
args.Handled = false;
return;
}
// Orientable tiles
if (tile.type == newtile.Type && orientableTiles.Contains(tile.type))
{
Main.tile[realx, realy].frameX = newtile.FrameX;
Main.tile[realx, realy].frameY = newtile.FrameY;
changed = true;
}
// Landmine
if (tile.type == TileID.LandMine && !newtile.Active)
{
Main.tile[realx, realy].active(false);
changed = true;
}
// Sensors
if(newtile.Type == TileID.LogicSensor && !Main.tile[realx, realy].active())
{
Main.tile[realx, realy].type = newtile.Type;
Main.tile[realx, realy].frameX = newtile.FrameX;
Main.tile[realx, realy].frameY = newtile.FrameY;
Main.tile[realx, realy].active(true);
changed = true;
}
if (tile.active() && newtile.Active && tile.type != newtile.Type)
{
// Grass <-> Grass
if ((TileID.Sets.Conversion.Grass[tile.type] && TileID.Sets.Conversion.Grass[newtile.Type]) ||
// Dirt <-> Dirt
((tile.type == 0 || tile.type == 59) &&
(newtile.Type == 0 || newtile.Type == 59)) ||
// Ice <-> Ice
(TileID.Sets.Conversion.Ice[tile.type] && TileID.Sets.Conversion.Ice[newtile.Type]) ||
// Stone <-> Stone
((TileID.Sets.Conversion.Stone[tile.type] || Main.tileMoss[tile.type]) &&
(TileID.Sets.Conversion.Stone[newtile.Type] || Main.tileMoss[newtile.Type])) ||
// Sand <-> Sand
(TileID.Sets.Conversion.Sand[tile.type] && TileID.Sets.Conversion.Sand[newtile.Type]) ||
// Sandstone <-> Sandstone
(TileID.Sets.Conversion.Sandstone[tile.type] && TileID.Sets.Conversion.Sandstone[newtile.Type]) ||
// Hardened Sand <-> Hardened Sand
(TileID.Sets.Conversion.HardenedSand[tile.type] && TileID.Sets.Conversion.HardenedSand[newtile.Type]))
{
Main.tile[realx, realy].type = newtile.Type;
changed = true;
}
}
// Stone wall <-> Stone wall
if (((tile.wall == 1 || tile.wall == 3 || tile.wall == 28 || tile.wall == 83) &&
(newtile.Wall == 1 || newtile.Wall == 3 || newtile.Wall == 28 || newtile.Wall == 83)) ||
// Leaf wall <-> Leaf wall
(((tile.wall >= 63 && tile.wall <= 70) || tile.wall == 81) &&
((newtile.Wall >= 63 && newtile.Wall <= 70) || newtile.Wall == 81)))
{
Main.tile[realx, realy].wall = newtile.Wall;
changed = true;
}
if ((tile.type == TileID.TrapdoorClosed && (newtile.Type == TileID.TrapdoorOpen || !newtile.Active)) ||
(tile.type == TileID.TrapdoorOpen && (newtile.Type == TileID.TrapdoorClosed || !newtile.Active)) ||
(!tile.active() && newtile.Active && (newtile.Type == TileID.TrapdoorOpen||newtile.Type == TileID.TrapdoorClosed)))
{
Main.tile[realx, realy].type = newtile.Type;
Main.tile[realx, realy].frameX = newtile.FrameX;
Main.tile[realx, realy].frameY = newtile.FrameY;
Main.tile[realx, realy].active(newtile.Active);
changed = true;
}
}
}
if (changed)
{
TSPlayer.All.SendTileSquare(tileX, tileY, size + 1);
WorldGen.RangeFrame(tileX, tileY, tileX + size, tileY + size);
}
else
{
args.Player.SendTileSquare(tileX, tileY, size);
}
}
catch
{
args.Player.SendTileSquare(tileX, tileY, size);
}
args.Handled = false;
return;
}
/// <summary>
/// Tile IDs that can be oriented:
/// Cannon,
/// Chairs,
/// Beds,
/// Bathtubs,
/// Statues,
/// Mannequin,
/// Traps,
/// MusicBoxes,
/// ChristmasTree,
/// WaterFountain,
/// Womannequin,
/// MinecartTrack,
/// WeaponsRack,
/// LunarMonolith,
/// TargetDummy,
/// Campfire
/// </summary>
private static int[] orientableTiles = new int[]
{
TileID.Cannon,
TileID.Chairs,
TileID.Beds,
TileID.Bathtubs,
TileID.Statues,
TileID.Mannequin,
TileID.Traps,
TileID.MusicBoxes,
TileID.ChristmasTree,
TileID.WaterFountain,
TileID.Womannequin,
TileID.MinecartTrack,
TileID.WeaponsRack,
TileID.ItemFrame,
TileID.LunarMonolith,
TileID.TargetDummy,
TileID.Campfire
};
}
}