98ea8cfd8f
According to the Microsoft website and various other places, we can safely upgrade to this format and still allow people who are a version behind to keep that. This should change virtually nothing.
822 lines
24 KiB
C#
822 lines
24 KiB
C#
/*
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TShock, a server mod for Terraria
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Copyright (C) 2011-2012 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.IO;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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using System.Security.Cryptography;
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using System.Text;
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using Terraria;
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namespace TShockAPI
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{
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public class Utils
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{
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private readonly static int firstItemPrefix = 1;
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private readonly static int lastItemPrefix = 83;
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// Utils is a Singleton
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private static readonly Utils instance = new Utils();
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private Utils() {}
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public static Utils Instance { get { return instance; } }
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public Random Random = new Random();
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//private static List<Group> groups = new List<Group>();
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/// <summary>
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/// Provides the real IP address from a RemoteEndPoint string that contains a port and an IP
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/// </summary>
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/// <param name="mess">A string IPv4 address in IP:PORT form.</param>
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/// <returns>A string IPv4 address.</returns>
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public string GetRealIP(string mess)
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{
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return mess.Split(':')[0];
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}
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/// <summary>
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/// Used for some places where a list of players might be used.
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/// </summary>
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/// <returns>String of players seperated by commas.</returns>
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public string GetPlayers()
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{
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var sb = new StringBuilder();
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foreach (TSPlayer player in TShock.Players)
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{
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if (player != null && player.Active)
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{
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if (sb.Length != 0)
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{
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sb.Append(", ");
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}
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sb.Append(player.Name);
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}
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}
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return sb.ToString();
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}
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/// <summary>
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/// Used for some places where a list of players might be used.
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/// </summary>
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/// <returns>String of players and their id seperated by commas.</returns>
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public string GetPlayersWithIds()
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{
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var sb = new StringBuilder();
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foreach (TSPlayer player in TShock.Players)
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{
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if (player != null && player.Active)
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{
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if (sb.Length != 0)
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{
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sb.Append(", ");
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}
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sb.Append(player.Name);
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string id = "(ID: " + Convert.ToString(TShock.Users.GetUserID(player.UserAccountName)) + ", IX:" + player.Index + ")";
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sb.Append(id);
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}
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}
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return sb.ToString();
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}
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/// <summary>
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/// Finds a player and gets IP as string
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/// </summary>
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/// <param name="msg">Player name</param>
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public string GetPlayerIP(string playername)
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{
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foreach (TSPlayer player in TShock.Players)
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{
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if (player != null && player.Active)
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{
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if (playername.ToLower() == player.Name.ToLower())
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{
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return player.IP;
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}
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}
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}
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return null;
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}
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/// <summary>
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/// It's a clamp function
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="value">Value to clamp</param>
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/// <param name="max">Maximum bounds of the clamp</param>
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/// <param name="min">Minimum bounds of the clamp</param>
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/// <returns></returns>
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public T Clamp<T>(T value, T max, T min)
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where T : IComparable<T>
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{
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T result = value;
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if (value.CompareTo(max) > 0)
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result = max;
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if (value.CompareTo(min) < 0)
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result = min;
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return result;
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}
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/// <summary>
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/// Saves the map data
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/// </summary>
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public void SaveWorld()
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{
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SaveManager.Instance.SaveWorld();
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}
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/// <summary>
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/// Broadcasts a message to all players
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/// </summary>
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/// <param name="msg">string message</param>
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public void Broadcast(string msg)
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{
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Broadcast(msg, Color.Green);
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}
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public void Broadcast(string msg, byte red, byte green, byte blue)
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{
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TSPlayer.All.SendMessage(msg, red, green, blue);
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TSPlayer.Server.SendMessage(msg, red, green, blue);
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Log.Info(string.Format("Broadcast: {0}", msg));
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}
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public void Broadcast(string msg, Color color)
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{
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Broadcast(msg, color.R, color.G, color.B);
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}
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/// <summary>
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/// Sends message to all users with 'logs' permission.
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/// </summary>
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/// <param name="log">Message to send</param>
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/// <param name="color">Color of the message</param>
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public void SendLogs(string log, Color color)
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{
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Log.Info(log);
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TSPlayer.Server.SendMessage(log, color);
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foreach (TSPlayer player in TShock.Players)
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{
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if (player != null && player.Active && player.Group.HasPermission(Permissions.logs) && player.DisplayLogs &&
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TShock.Config.DisableSpewLogs == false)
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player.SendMessage(log, color);
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}
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}
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/// <summary>
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/// The number of active players on the server.
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/// </summary>
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/// <returns>int playerCount</returns>
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public int ActivePlayers()
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{
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return Main.player.Where(p => null != p && p.active).Count();
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}
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/// <summary>
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/// Finds a TSPlayer based on name or id
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/// </summary>
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/// <param name="ply">Player name</param>
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/// <returns></returns>
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public List<TSPlayer> FindPlayer(string ply)
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{
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var found = new List<TSPlayer>();
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// Avoid errors caused by null search
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if (null == ply)
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return found;
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ply = ply.ToLower();
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foreach (TSPlayer player in TShock.Players)
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{
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if (player == null)
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continue;
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try
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{
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if (Convert.ToInt32(ply) == player.Index && player.Active)
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{
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return new List<TSPlayer> { player };
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}
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}
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catch (Exception e)
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{
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// Conversion failed
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}
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string name = player.Name.ToLower();
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if (name.Equals(ply))
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return new List<TSPlayer> {player};
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if (name.Contains(ply))
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found.Add(player);
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}
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return found;
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}
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/// <summary>
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/// Gets a random clear tile in range
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/// </summary>
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/// <param name="startTileX">Bound X</param>
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/// <param name="startTileY">Bound Y</param>
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/// <param name="tileXRange">Range on the X axis</param>
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/// <param name="tileYRange">Range on the Y axis</param>
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/// <param name="tileX">X location</param>
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/// <param name="tileY">Y location</param>
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public void GetRandomClearTileWithInRange(int startTileX, int startTileY, int tileXRange, int tileYRange,
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out int tileX, out int tileY)
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{
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int j = 0;
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do
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{
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if (j == 100)
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{
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tileX = startTileX;
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tileY = startTileY;
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break;
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}
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tileX = startTileX + Random.Next(tileXRange*-1, tileXRange);
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tileY = startTileY + Random.Next(tileYRange*-1, tileYRange);
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j++;
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} while (TileValid(tileX, tileY) && !TileClear(tileX, tileY));
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}
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/// <summary>
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/// Determines if a tile is valid
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/// </summary>
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/// <param name="tileX">Location X</param>
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/// <param name="tileY">Location Y</param>
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/// <returns>If the tile is valid</returns>
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private bool TileValid(int tileX, int tileY)
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{
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return tileX >= 0 && tileX <= Main.maxTilesX && tileY >= 0 && tileY <= Main.maxTilesY;
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}
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/// <summary>
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/// Clears a tile
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/// </summary>
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/// <param name="tileX">Location X</param>
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/// <param name="tileY">Location Y</param>
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/// <returns>The state of the tile</returns>
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private bool TileClear(int tileX, int tileY)
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{
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return !Main.tile[tileX, tileY].active;
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}
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/// <summary>
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/// Gets a list of items by ID or name
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/// </summary>
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/// <param name="idOrName">Item ID or name</param>
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/// <returns>List of Items</returns>
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public List<Item> GetItemByIdOrName(string idOrName)
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{
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int type = -1;
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if (int.TryParse(idOrName, out type))
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{
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return new List<Item> {GetItemById(type)};
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}
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return GetItemByName(idOrName);
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}
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/// <summary>
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/// Gets an item by ID
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/// </summary>
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/// <param name="id">ID</param>
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/// <returns>Item</returns>
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public Item GetItemById(int id)
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{
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Item item = new Item();
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item.netDefaults(id);
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return item;
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}
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/// <summary>
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/// Gets items by name
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/// </summary>
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/// <param name="name">name</param>
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/// <returns>List of Items</returns>
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public List<Item> GetItemByName(string name)
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{
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//Method #1 - must be exact match, allows support for different pickaxes/hammers/swords etc
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for (int i = 1; i < Main.maxItemTypes; i++)
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{
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Item item = new Item();
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item.SetDefaults(name);
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if (item.name == name)
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return new List<Item> {item};
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}
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//Method #2 - allows impartial matching
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var found = new List<Item>();
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for (int i = -24; i < Main.maxItemTypes; i++)
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{
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try
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{
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Item item = new Item();
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item.netDefaults(i);
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if (item.name.ToLower() == name.ToLower())
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return new List<Item> {item};
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if (item.name.ToLower().StartsWith(name.ToLower()))
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found.Add(item);
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}
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catch
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{
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}
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}
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return found;
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}
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/// <summary>
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/// Gets an NPC by ID or Name
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/// </summary>
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/// <param name="idOrName"></param>
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/// <returns>List of NPCs</returns>
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public List<NPC> GetNPCByIdOrName(string idOrName)
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{
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int type = -1;
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if (int.TryParse(idOrName, out type))
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{
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return new List<NPC> {GetNPCById(type)};
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}
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return GetNPCByName(idOrName);
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}
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/// <summary>
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/// Gets an NPC by ID
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/// </summary>
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/// <param name="id">ID</param>
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/// <returns>NPC</returns>
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public NPC GetNPCById(int id)
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{
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NPC npc = new NPC();
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npc.netDefaults(id);
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return npc;
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}
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/// <summary>
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/// Gets a NPC by name
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/// </summary>
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/// <param name="name">Name</param>
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/// <returns>List of matching NPCs</returns>
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public List<NPC> GetNPCByName(string name)
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{
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//Method #1 - must be exact match, allows support for different coloured slimes
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for (int i = -17; i < Main.maxNPCTypes; i++)
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{
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NPC npc = new NPC();
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npc.SetDefaults(name);
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if (npc.name == name)
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return new List<NPC> {npc};
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}
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//Method #2 - allows impartial matching
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var found = new List<NPC>();
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for (int i = 1; i < Main.maxNPCTypes; i++)
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{
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NPC npc = new NPC();
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npc.netDefaults(i);
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if (npc.name.ToLower() == name.ToLower())
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return new List<NPC> {npc};
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if (npc.name.ToLower().StartsWith(name.ToLower()))
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found.Add(npc);
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}
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return found;
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}
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/// <summary>
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/// Gets a buff name by id
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/// </summary>
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/// <param name="id">ID</param>
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/// <returns>name</returns>
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public string GetBuffName(int id)
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{
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return (id > 0 && id < Main.maxBuffs) ? Main.buffName[id] : "null";
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}
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/// <summary>
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/// Gets the description of a buff
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/// </summary>
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/// <param name="id">ID</param>
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/// <returns>description</returns>
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public string GetBuffDescription(int id)
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{
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return (id > 0 && id < Main.maxBuffs) ? Main.buffTip[id] : "null";
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}
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/// <summary>
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/// Gets a list of buffs by name
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/// </summary>
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/// <param name="name">name</param>
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/// <returns>Matching list of buff ids</returns>
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public List<int> GetBuffByName(string name)
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{
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for (int i = 1; i < Main.maxBuffs; i++)
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{
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if (Main.buffName[i].ToLower() == name)
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return new List<int> {i};
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}
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var found = new List<int>();
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for (int i = 1; i < Main.maxBuffs; i++)
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{
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if (Main.buffName[i].ToLower().StartsWith(name.ToLower()))
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found.Add(i);
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}
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return found;
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}
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/// <summary>
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/// Gets a prefix based on its id
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/// </summary>
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/// <param name="id">ID</param>
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/// <returns>Prefix name</returns>
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public string GetPrefixById(int id)
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{
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var item = new Item();
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item.SetDefaults(0);
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item.prefix = (byte) id;
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item.AffixName();
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return item.name.Trim();
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}
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/// <summary>
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/// Gets a list of prefixes by name
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/// </summary>
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/// <param name="name">Name</param>
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/// <returns>List of prefix IDs</returns>
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public List<int> GetPrefixByName(string name)
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{
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Item item = new Item();
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item.SetDefaults(0);
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string lowerName = name.ToLower();
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var found = new List<int>();
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for (int i = firstItemPrefix; i <= lastItemPrefix; i++)
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{
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try
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{
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item.prefix = (byte)i;
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string trimmed = item.AffixName().Trim();
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if (trimmed == name)
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{
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// Exact match
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found.Add(i);
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return found;
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}
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else
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{
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string trimmedLower = trimmed.ToLower();
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if (trimmedLower == lowerName)
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{
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// Exact match (caseinsensitive)
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found.Add(i);
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return found;
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}
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else if (trimmedLower.StartsWith(lowerName)) // Partial match
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found.Add(i);
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}
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}
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catch
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{
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}
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}
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return found;
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}
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/// <summary>
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/// Gets a prefix by ID or name
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/// </summary>
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/// <param name="idOrName">ID or name</param>
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/// <returns>List of prefix IDs</returns>
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public List<int> GetPrefixByIdOrName(string idOrName)
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{
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int type = -1;
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if (int.TryParse(idOrName, out type) && type >= firstItemPrefix && type <= lastItemPrefix)
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{
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return new List<int> {type};
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}
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return GetPrefixByName(idOrName);
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}
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/// <summary>
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/// Kicks all player from the server without checking for immunetokick permission.
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/// </summary>
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/// <param name="ply">int player</param>
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/// <param name="reason">string reason</param>
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public void ForceKickAll(string reason)
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{
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foreach (TSPlayer player in TShock.Players)
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{
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if (player != null && player.Active)
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{
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ForceKick(player, reason);
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}
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}
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}
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/// <summary>
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/// Stops the server after kicking all players with a reason message, and optionally saving the world
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/// </summary>
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/// <param name="save">bool perform a world save before stop (default: true)</param>
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/// <param name="reason">string reason (default: "Server shutting down!")</param>
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public void StopServer(bool save = true, string reason = "Server shutting down!")
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{
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ForceKickAll(reason);
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if (save)
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SaveManager.Instance.SaveWorld();
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// Save takes a while so kick again
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ForceKickAll(reason);
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// Broadcast so console can see we are shutting down as well
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TShock.Utils.Broadcast(reason, Color.Red);
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// Disconnect after kick as that signifies server is exiting and could cause a race
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Netplay.disconnect = true;
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}
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#if COMPAT_SIGS
|
|
[Obsolete("This method is for signature compatibility for external code only")]
|
|
public void ForceKick(TSPlayer player, string reason)
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{
|
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Kick(player, reason, true, false, string.Empty);
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}
|
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#endif
|
|
/// <summary>
|
|
/// Kicks a player from the server without checking for immunetokick permission.
|
|
/// </summary>
|
|
/// <param name="ply">int player</param>
|
|
/// <param name="reason">string reason</param>
|
|
/// <param name="silent">bool silent (default: false)</param>
|
|
public void ForceKick(TSPlayer player, string reason, bool silent = false, bool saveSSI = false)
|
|
{
|
|
Kick(player, reason, true, silent, null, saveSSI);
|
|
}
|
|
|
|
#if COMPAT_SIGS
|
|
[Obsolete("This method is for signature compatibility for external code only")]
|
|
public bool Kick(TSPlayer player, string reason, string adminUserName)
|
|
{
|
|
return Kick(player, reason, false, false, adminUserName);
|
|
}
|
|
#endif
|
|
/// <summary>
|
|
/// Kicks a player from the server..
|
|
/// </summary>
|
|
/// <param name="ply">int player</param>
|
|
/// <param name="reason">string reason</param>
|
|
/// <param name="force">bool force (default: false)</param>
|
|
/// <param name="silent">bool silent (default: false)</param>
|
|
/// <param name="adminUserName">string adminUserName (default: null)</param>
|
|
/// <param name="saveSSI">bool saveSSI (default: false)</param>
|
|
public bool Kick(TSPlayer player, string reason, bool force = false, bool silent = false, string adminUserName = null, bool saveSSI = false)
|
|
{
|
|
if (!player.ConnectionAlive)
|
|
return true;
|
|
if (force || !player.Group.HasPermission(Permissions.immunetokick))
|
|
{
|
|
string playerName = player.Name;
|
|
player.SilentKickInProgress = silent;
|
|
if (player.IsLoggedIn && saveSSI)
|
|
player.SaveServerInventory();
|
|
player.Disconnect(string.Format("Kicked: {0}", reason));
|
|
Log.ConsoleInfo(string.Format("Kicked {0} for : {1}", playerName, reason));
|
|
string verb = force ? "force " : "";
|
|
if (!silent)
|
|
{
|
|
if (string.IsNullOrWhiteSpace(adminUserName))
|
|
Broadcast(string.Format("{0} was {1}kicked for {2}", playerName, verb, reason.ToLower()));
|
|
else
|
|
Broadcast(string.Format("{0} {1}kicked {2} for {3}", adminUserName, verb, playerName, reason.ToLower()));
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
#if COMPAT_SIGS
|
|
[Obsolete("This method is for signature compatibility for external code only")]
|
|
public bool Ban(TSPlayer player, string reason, string adminUserName)
|
|
{
|
|
return Ban(player, reason, false, adminUserName);
|
|
}
|
|
#endif
|
|
/// <summary>
|
|
/// Bans and kicks a player from the server.
|
|
/// </summary>
|
|
/// <param name="ply">int player</param>
|
|
/// <param name="reason">string reason</param>
|
|
/// <param name="force">bool force (default: false)</param>
|
|
/// <param name="adminUserName">bool silent (default: null)</param>
|
|
public bool Ban(TSPlayer player, string reason, bool force = false, string adminUserName = null)
|
|
{
|
|
if (!player.ConnectionAlive)
|
|
return true;
|
|
if (force || !player.Group.HasPermission(Permissions.immunetoban))
|
|
{
|
|
string ip = player.IP;
|
|
string playerName = player.Name;
|
|
TShock.Bans.AddBan(ip, playerName, reason);
|
|
player.Disconnect(string.Format("Banned: {0}", reason));
|
|
Log.ConsoleInfo(string.Format("Banned {0} for : {1}", playerName, reason));
|
|
string verb = force ? "force " : "";
|
|
if (string.IsNullOrWhiteSpace(adminUserName))
|
|
Broadcast(string.Format("{0} was {1}banned for {1}", playerName, verb, reason.ToLower()));
|
|
else
|
|
Broadcast(string.Format("{0} {1}banned {1} for {2}", adminUserName, verb, playerName, reason.ToLower()));
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Shows a file to the user.
|
|
/// </summary>
|
|
/// <param name="ply">int player</param>
|
|
/// <param name="file">string filename reletave to savedir</param>
|
|
//Todo: Fix this
|
|
public void ShowFileToUser(TSPlayer player, string file)
|
|
{
|
|
string foo = "";
|
|
using (var tr = new StreamReader(Path.Combine(TShock.SavePath, file)))
|
|
{
|
|
while ((foo = tr.ReadLine()) != null)
|
|
{
|
|
foo = foo.Replace("%map%", Main.worldName);
|
|
foo = foo.Replace("%players%", GetPlayers());
|
|
//foo = SanitizeString(foo);
|
|
if (foo.Substring(0, 1) == "%" && foo.Substring(12, 1) == "%") //Look for a beginning color code.
|
|
{
|
|
string possibleColor = foo.Substring(0, 13);
|
|
foo = foo.Remove(0, 13);
|
|
float[] pC = {0, 0, 0};
|
|
possibleColor = possibleColor.Replace("%", "");
|
|
string[] pCc = possibleColor.Split(',');
|
|
if (pCc.Length == 3)
|
|
{
|
|
try
|
|
{
|
|
player.SendMessage(foo, (byte) Convert.ToInt32(pCc[0]), (byte) Convert.ToInt32(pCc[1]),
|
|
(byte) Convert.ToInt32(pCc[2]));
|
|
continue;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Log.Error(e.ToString());
|
|
}
|
|
}
|
|
}
|
|
player.SendMessage(foo);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a Group from the name of the group
|
|
/// </summary>
|
|
/// <param name="ply">string groupName</param>
|
|
public Group GetGroup(string groupName)
|
|
{
|
|
//first attempt on cached groups
|
|
for (int i = 0; i < TShock.Groups.groups.Count; i++)
|
|
{
|
|
if (TShock.Groups.groups[i].Name.Equals(groupName))
|
|
{
|
|
return TShock.Groups.groups[i];
|
|
}
|
|
}
|
|
return new Group(TShock.Config.DefaultGuestGroupName);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns an IPv4 address from a DNS query
|
|
/// </summary>
|
|
/// <param name="hostname">string ip</param>
|
|
public string GetIPv4Address(string hostname)
|
|
{
|
|
try
|
|
{
|
|
//Get the ipv4 address from GetHostAddresses, if an ip is passed it will return that ip
|
|
var ip = Dns.GetHostAddresses(hostname).FirstOrDefault(i => i.AddressFamily == AddressFamily.InterNetwork);
|
|
//if the dns query was successful then return it, otherwise return an empty string
|
|
return ip != null ? ip.ToString() : "";
|
|
}
|
|
catch (SocketException)
|
|
{
|
|
}
|
|
return "";
|
|
}
|
|
|
|
public string HashAlgo = "sha512";
|
|
|
|
public readonly Dictionary<string, Func<HashAlgorithm>> HashTypes = new Dictionary<string, Func<HashAlgorithm>>
|
|
{
|
|
{"sha512", () => new SHA512Managed()},
|
|
{"sha256", () => new SHA256Managed()},
|
|
{"md5", () => new MD5Cng()},
|
|
{"sha512-xp", () => SHA512.Create()},
|
|
{"sha256-xp", () => SHA256.Create()},
|
|
{"md5-xp", () => MD5.Create()},
|
|
};
|
|
|
|
/// <summary>
|
|
/// Returns a Sha256 string for a given string
|
|
/// </summary>
|
|
/// <param name="bytes">bytes to hash</param>
|
|
/// <returns>string sha256</returns>
|
|
public string HashPassword(byte[] bytes)
|
|
{
|
|
if (bytes == null)
|
|
throw new NullReferenceException("bytes");
|
|
Func<HashAlgorithm> func;
|
|
if (!HashTypes.TryGetValue(HashAlgo.ToLower(), out func))
|
|
throw new NotSupportedException("Hashing algorithm {0} is not supported".SFormat(HashAlgo.ToLower()));
|
|
|
|
using (var hash = func())
|
|
{
|
|
var ret = hash.ComputeHash(bytes);
|
|
return ret.Aggregate("", (s, b) => s + b.ToString("X2"));
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a Sha256 string for a given string
|
|
/// </summary>
|
|
/// <param name="bytes">bytes to hash</param>
|
|
/// <returns>string sha256</returns>
|
|
public string HashPassword(string password)
|
|
{
|
|
if (string.IsNullOrEmpty(password) || password == "non-existant password")
|
|
return "non-existant password";
|
|
return HashPassword(Encoding.UTF8.GetBytes(password));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Checks if the string contains any unprintable characters
|
|
/// </summary>
|
|
/// <param name="str">String to check</param>
|
|
/// <returns>True if the string only contains printable characters</returns>
|
|
public bool ValidString(string str)
|
|
{
|
|
foreach (var c in str)
|
|
{
|
|
if (c < 0x20 || c > 0xA9)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Checks if world has hit the max number of chests
|
|
/// </summary>
|
|
/// <returns>True if the entire chest array is used</returns>
|
|
public bool MaxChests()
|
|
{
|
|
for (int i = 0; i < Main.chest.Length; i++)
|
|
{
|
|
if (Main.chest[i] == null)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Searches for a projectile by identity and owner
|
|
/// </summary>
|
|
/// <param name="identity">identity</param>
|
|
/// <param name="owner">owner</param>
|
|
/// <returns>projectile ID</returns>
|
|
public int SearchProjectile(short identity, int owner)
|
|
{
|
|
for (int i = 0; i < Main.maxProjectiles; i++)
|
|
{
|
|
if (Main.projectile[i].identity == identity && Main.projectile[i].owner == owner)
|
|
return i;
|
|
}
|
|
return 1000;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Sanitizes input strings
|
|
/// </summary>
|
|
/// <param name="str">string</param>
|
|
/// <returns>sanitized string</returns>
|
|
public string SanitizeString(string str)
|
|
{
|
|
var returnstr = str.ToCharArray();
|
|
for (int i = 0; i < str.Length; i++)
|
|
{
|
|
if (!ValidString(str[i].ToString()))
|
|
returnstr[i] = ' ';
|
|
}
|
|
return new string(returnstr);
|
|
}
|
|
}
|
|
}
|