SinBot.cs

/*
	Copyright 2011 MCForge (modified by Sinjai for use with SinCraft)
		
	Dual-licensed under the	Educational Community License, Version 2.0 and
	the GNU General Public License, Version 3 (the "Licenses"); you may
	not use this file except in compliance with the Licenses. You may
	obtain a copy of the Licenses at
	
	http://www.opensource.org/licenses/ecl2.php
	http://www.gnu.org/licenses/gpl-3.0.html
	
	Unless required by applicable law or agreed to in writing,
	software distributed under the Licenses are distributed on an "AS IS"
	BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
	or implied. See the Licenses for the specific language governing
	permissions and limitations under the Licenses.
*/
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using Sharkbite.Irc;

namespace SinCraft {
	public sealed class SinBot {
		public static readonly string ColorSignal = "\x03";
		public static readonly string ResetSignal = "\x0F";
		private Connection connection;
		private List<string> banCmd;
		private string channel, opchannel;
		private string nick;
		private string server;
		private bool reset = false;
		private byte retries = 0;
		public string usedCmd = "";
		public SinBot(string channel, string opchannel, string nick, string server) {
			/*if (!File.Exists("Sharkbite.Thresher.dll"))
			{
				Server.irc = false;
				Server.s.Log("[IRC] The IRC dll was not found!");
				return;
			}*/
			this.channel = channel.Trim(); this.opchannel = opchannel.Trim(); this.nick = nick.Replace(" ", ""); this.server = server;
			banCmd = new List<string>();
			if (Server.irc) {

                ConnectionArgs con = new ConnectionArgs(nick, server);
                con.Port = Server.ircPort;
                connection = new Connection(con, false, false);

				// Regster events for outgoing
				Player.PlayerChat += new Player.OnPlayerChat(Player_PlayerChat);
				Player.PlayerConnect += new Player.OnPlayerConnect(Player_PlayerConnect);
				Player.PlayerDisconnect += new Player.OnPlayerDisconnect(Player_PlayerDisconnect);

				// Regster events for incoming
				connection.Listener.OnNick += new NickEventHandler(Listener_OnNick);
				connection.Listener.OnRegistered += new RegisteredEventHandler(Listener_OnRegistered);
				connection.Listener.OnPublic += new PublicMessageEventHandler(Listener_OnPublic);
				connection.Listener.OnPrivate += new PrivateMessageEventHandler(Listener_OnPrivate);
				connection.Listener.OnError += new ErrorMessageEventHandler(Listener_OnError);
				connection.Listener.OnQuit += new QuitEventHandler(Listener_OnQuit);
				connection.Listener.OnJoin += new JoinEventHandler(Listener_OnJoin);
				connection.Listener.OnPart += new PartEventHandler(Listener_OnPart);
				connection.Listener.OnDisconnected += new DisconnectedEventHandler(Listener_OnDisconnected);

				// Load banned commands list
				if (File.Exists("text/ircbancmd.txt")) // Backwards compatibility
				{
					using (StreamWriter sw = File.CreateText("text/irccmdblacklist.txt")) {
						sw.WriteLine("#Here you can put commands that cannot be used from the IRC bot.");
						sw.WriteLine("#Lines starting with \"#\" are ignored.");
						foreach (string line in File.ReadAllLines("text/ircbancmd.txt"))
							sw.WriteLine(line);
					}
					File.Delete("text/ircbancmd.txt");
				}
				else {
					if (!File.Exists("text/irccmdblacklist.txt")) File.WriteAllLines("text/irccmdblacklist.txt", new String[] { "#Here you can put commands that cannot be used from the IRC bot.", "#Lines starting with \"#\" are ignored." });
					foreach (string line in File.ReadAllLines("text/irccmdblacklist.txt"))
						if (line[0] != '#') banCmd.Add(line);
				}
			}
		}
		public void Say(string message, bool opchat = false, bool color = true) {
			if (!Server.irc || !IsConnected()) return;
			StringBuilder sb = new StringBuilder(message);

			if(String.IsNullOrEmpty(message.Trim()))
				message = ".";

			if (color) {
				for (int i = 0; i < 10; i++) {
					sb.Replace("%" + i, ColorSignal + c.MCtoIRC("&" + i));
					sb.Replace("&" + i, ColorSignal + c.MCtoIRC("&" + i));
				}
				for (char ch = 'a'; ch <= 'f'; ch++) {
					sb.Replace("%" + ch, ColorSignal + c.MCtoIRC("&" + ch));
					sb.Replace("&" + ch, ColorSignal + c.MCtoIRC("&" + ch));
				}
			}

			connection.Sender.PublicMessage(opchat ? opchannel : channel, sb.ToString());
		}
		public void Pm(string user, string message) {
			if (Server.irc && IsConnected())
				connection.Sender.PrivateMessage(user, message);
		}
		public void Reset() {
			if (!Server.irc) return;
			reset = true;
			retries = 0;
			Disconnect("IRC Bot resetting...");
			Connect();
		}
		void Listener_OnJoin(UserInfo user, string channel) {
			doJoinLeaveMessage(user.Nick, "joined", channel);
		}
		void Listener_OnPart(UserInfo user, string channel, string reason) {
			if (user.Nick == nick) return;
			doJoinLeaveMessage(user.Nick, "left", channel);
		}

		private void doJoinLeaveMessage(string who, string verb, string channel) {
			Server.s.Log(String.Format("{0} has {1} channel {2}", who, verb, channel));
			Player.GlobalMessage(String.Format("{0}[IRC] {1} has {2} the{3} channel", Server.IRCColour, who, verb, (channel == opchannel ? " operator" : "")));
		}
		void Player_PlayerDisconnect(Player p, string reason) {
			if (Server.irc && IsConnected())
				if (Server.guestLeaveNotify == false && p.group.Permission <= LevelPermission.Guest) {
					return;
				}
			connection.Sender.PublicMessage(channel, p.SetName + "(" + p.Username + ")" + " left the game (" + reason + ")");
		}

		void Player_PlayerConnect(Player p) {
			if (Server.irc && IsConnected())
				if (Server.guestJoinNotify == false && p.group.Permission <= LevelPermission.Guest) {
					return;
				}
            connection.Sender.PublicMessage(channel, p.SetName + "(" + p.Username + ")" + " joined the game");
		}

		void Listener_OnQuit(UserInfo user, string reason) {
			if (user.Nick == nick) return;
			Server.s.Log(user.Nick + " has left IRC");
			Player.GlobalMessage(Server.IRCColour + user.Nick + Server.DefaultColor + " has left IRC");
		}

		void Listener_OnError(ReplyCode code, string message) {
			Server.s.Log("IRC Error: " + message);
		}

		void Listener_OnPrivate(UserInfo user, string message) {
			if (!Server.ircControllers.Contains(user.Nick)) { Pm(user.Nick, "You are not an IRC controller!"); return; }
			if (message.Split(' ')[0] == "resetbot" || banCmd.Contains(message.Split(' ')[0])) { Pm(user.Nick, "You cannot use this command from IRC!"); return; }
			if (Player.CommandHasBadColourCodes(null, message)) { Pm(user.Nick, "Your command had invalid color codes!"); return; }

			Command cmd = Command.all.Find(message.Split(' ')[0]);
			if (cmd != null) {
				Server.s.Log("IRC Command: /" + message);
				usedCmd = user.Nick;
				try { cmd.Use(null, message.Split(' ').Length > 1 ? message.Substring(message.IndexOf(' ')).Trim() : ""); }
				catch { Pm(user.Nick, "Failed command!"); }
				usedCmd = "";
			}
			else
				Pm(user.Nick, "Unknown command!");
		}

		void Listener_OnPublic(UserInfo user, string channel, string message) {
			//string allowedchars = "1234567890-=qwertyuiop[]\\asdfghjkl;'zxcvbnm,./!@#$%^*()_+QWERTYUIOPASDFGHJKL:\"ZXCVBNM<>? ";
			// Allowed chars are any ASCII char between 20h/32 and 7Ah/122 inclusive, except for 26h/38 (&) and 60h/96 (`)

			for (byte i = 10; i < 16; i++)
				message = message.Replace(ColorSignal + i, c.IRCtoMC(i).Replace('&', '%'));
			for (byte i = 0; i < 10; i++)
				message = message.Replace(ColorSignal + i, c.IRCtoMC(i).Replace('&', '%'));

			message = message.MCCharFilter();
			if (Player.MessageHasBadColorCodes(null, message))
				return;

			if(String.IsNullOrEmpty(message.Trim()))
				message = ".";
				
			
			if (channel == opchannel) {
				Server.s.Log(String.Format("(OPs): [IRC] {0}: {1}", user.Nick, message));
				Player.GlobalMessageOps(String.Format("To Ops &f-{0}[IRC] {1}&f- {2}", Server.IRCColour, user.Nick, Server.profanityFilter ? ProfanityFilter.Parse(message) : message));
			}
			else {
				Server.s.Log(String.Format("[IRC] {0}: {1}", user.Nick, message));
				Player.GlobalMessage(String.Format("{0}[IRC] {1}: &f{2}", Server.IRCColour, user.Nick, Server.profanityFilter ? ProfanityFilter.Parse(message) : message));
			}
		}

		void Listener_OnRegistered() {
			Server.s.Log("Connected to IRC!");
			reset = false;
			retries = 0;
			if (Server.ircIdentify && Server.ircPassword != "") {
				Server.s.Log("Identifying with NickServ");
				connection.Sender.PrivateMessage("nickserv", "IDENTIFY " + Server.ircPassword);
			}

			Server.s.Log("Joining channels...");

			if (!String.IsNullOrEmpty(channel))
				connection.Sender.Join(channel);
			if (!String.IsNullOrEmpty(opchannel))
				connection.Sender.Join(opchannel);
		}

		void Listener_OnDisconnected() {
			if (!reset && retries < 3) { retries++; Connect(); }
		}

		void Listener_OnNick(UserInfo user, string newNick) {
			//Player.GlobalMessage(Server.IRCColour + "[IRC] " + user.Nick + " changed nick to " + newNick);

			if (Player.HasBadColorCodes(newNick) || newNick.Trim() == "") {
				this.Pm(user.Nick, "You cannot have that username");
				return;
			}

			string key;
			if (newNick.Split('|').Length == 2) {
				key = newNick.Split('|')[1];
				if (key != null && key != "") {
					switch (key) {
						case "AFK":
							Player.GlobalMessage("[IRC] " + Server.IRCColour + user.Nick + Server.DefaultColor + " is AFK"); Server.ircafkset.Add(user.Nick); break;
						case "Away":
							Player.GlobalMessage("[IRC] " + Server.IRCColour + user.Nick + Server.DefaultColor + " is Away"); Server.ircafkset.Add(user.Nick); break;
					}
				}
			}
			else if (Server.ircafkset.Contains(newNick)) {
				Player.GlobalMessage("[IRC] " + Server.IRCColour + newNick + Server.DefaultColor + " is back");
				Server.ircafkset.Remove(newNick);
			}
			else
				Player.GlobalMessage("[IRC] " + Server.IRCColour + user.Nick + Server.DefaultColor + " is now known as " + newNick);
		}
		void Player_PlayerChat(Player p, string message) {

			
			if (Player.HasBadColorCodes(message) || String.IsNullOrEmpty(message.Trim())) {
				Player.SendMessage(p, "You cannot send that message");
				return;
			}


			if (Server.ircColorsEnable == true && Server.irc && IsConnected())
				Say(p.color + p.prefix + p.SetName + ": &0" + message, p.opchat);
			if (Server.ircColorsEnable == false && Server.irc && IsConnected())
				Say(p.SetName + ": " + message, p.opchat);
		}
		public void Connect() {
			if (!Server.irc || Server.shuttingDown) return;

			/*new Thread(new ThreadStart(delegate
			{
				try { connection.Connect(); }
				catch (Exception e)
				{
					Server.s.Log("Failed to connect to IRC");
					Server.ErrorLog(e);
				}
			})).Start();*/

			Server.s.Log("Connecting to IRC...");

			try { connection.Connect(); }
			catch (Exception e) {
				Server.s.Log("Failed to connect to IRC!");
				Server.ErrorLog(e);
			}
		}
		public void Disconnect(string reason) {
			if (IsConnected()) { connection.Disconnect(reason); Server.s.Log("Disconnected from IRC!"); }
		}
		public bool IsConnected() {
			if (!Server.irc) return false;
			try { return connection.Connected; }
			catch { return false; }
		}
	}
}