Bot.cs

   1 // Kelsier project - Bot state and parser code (Bot.cs)
   2 // Written by the Jobbig codeteam. <http://jobbig.eu/code/>
   3 //
   4 // Copyright 2013 John Runyon.
   5 //
   6 // This file is part of the Kelsier project.
   7 //
   8 // Kelsier is free software: you can redistribute it and/or modify
   9 // it under the terms of the GNU Affero General Public License as published by
  10 // the Free Software Foundation, either version 3 of the License, or
  11 // (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU Affero General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU Affero General Public License
  19 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 //
  21
  22 using System;
  23 using System.Collections.Generic;
  24 using System.Linq;
  25 using System.Text;
  26 using MySql.Data.MySqlClient;
  27 using System.Net;
  28 using System.Net.Sockets;
  29
  30 namespace Kelsier.Common {
  31     public class Bot {
  32         public int id { get; private set; }
  33
  34         public string nick { get; private set; }
  35         public string ident { get; private set; }
  36         public string realname { get; private set; }
  37         public string localip { get; private set; }
  38         public string server { get; private set; }
  39         public int serverport { get; private set; }
  40
  41         private IPEndPoint local;
  42
  43         private Socket s;
  44         public bool online { get; private set; }
  45
  46         private Logger log;
  47
  48
  49         public Bot(int id) {
  50             this.id = id;
  51
  52             this.log = new Logger(id.ToString("0000"), Info.log);
  53
  54             MySqlDataReader rdr = Info.db.queryReader("SELECT nick, ident, realname, bindip, server, serverport FROM bots WHERE id = @id", new object[] { "@id", id });
  55             rdr.Read();
  56
  57             this.nick = rdr.GetString("nick");
  58             this.ident = rdr.GetString("ident");
  59             this.realname = rdr.GetString("realname");
  60
  61             if (rdr.IsDBNull(rdr.GetOrdinal("bindip"))) {
  62                 this.localip = null;
  63                 this.local = new IPEndPoint(IPAddress.Any, 0);
  64             } else {
  65                 this.localip = rdr.GetString("bindip");
  66                 this.local = new IPEndPoint(IPAddress.Parse(this.localip), 0);
  67             }
  68
  69             this.server = rdr.GetString("server");
  70             this.serverport = rdr.GetInt32("serverport");
  71         }
  72
  73         public string connect() {
  74             if (online) throw new InvalidStateException();
  75
  76             s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
  77             s.Bind(local);
  78             s.Connect(server, serverport);
  79
  80                         register();
  81
  82             Stator rcvstate = new Stator();
  83             s.BeginReceive(rcvstate.buffer, 0, 1, SocketFlags.None, new AsyncCallback(dataIn), rcvstate);
  84
  85             return "TODO";
  86         }
  87
  88         public void dataIn(IAsyncResult ar) {
  89             Stator rcvstate = (Stator)ar.AsyncState;
  90             s.EndReceive(ar);
  91
  92             if (rcvstate.buffer[0] == '\n') {
  93                                 string linein = rcvstate.buffersb.ToString();
  94                                 processData(linein);
  95                 rcvstate = new Stator();
  96             } else if (rcvstate.buffer[0] != '\r') {
  97                 rcvstate.buffersb.Append(Encoding.ASCII.GetString(rcvstate.buffer, 0, 1));
  98             }
  99             s.BeginReceive(rcvstate.buffer, 0, 1, SocketFlags.None, new AsyncCallback(dataIn), rcvstate);
 100         }
 101         private void send(string data, params object[] args) {
 102             log.info(">>> " + data);
 103             s.Send(Encoding.ASCII.GetBytes(data + "\n"));
 104         }
 105
 106         private void processData(string data) {
 107             log.info("<<< " + data);
 108
 109                         string[] parts;
 110                         string source = null;
 111                         if (data.StartsWith(":")) {
 112                                 parts = data.Split((char[])null, 2, StringSplitOptions.RemoveEmptyEntries);
 113                                 source = parts[0].Substring(1);
 114                                 data = parts[1];
 115                         }
 116
 117                         parts = data.Split((char[])null, 2, StringSplitOptions.RemoveEmptyEntries);
 118                         if (parts[0] == "PRIVMSG") {
 119                                 processMsg(source, parts[1]);
 120                         } else if (parts[0] == "376") {
 121                                 send("JOIN #jobbig.kelsier");
 122                         } else if (parts[0] == "PING") {
 123                                 send("PONG "+parts[1]);
 124                         }
 125         }
 126                 // processMsg("DimeCadmium!dime@jobbig.eu", "#mustis :hi");
 127                 private void processMsg(string source, string data) {
 128                         string[] dataparts = data.Split((char[])null, 2, StringSplitOptions.RemoveEmptyEntries);
 129
 130                         string nick = (source.Split(new char[] { '!' }))[0];
 131                         string target = dataparts[0];
 132                         string message = dataparts[1];
 133                         if (message.StartsWith(":"))
 134                                 message = message.Substring(1);
 135                         string[] msgparts = message.Split((char[])null, StringSplitOptions.RemoveEmptyEntries);
 136
 137                         // TODO check msgparts[0] first char for trigger
 138                         string cmdstr = msgparts[0].Substring(1);
 139                         string[] args;
 140                         bool chanmsg;
 141                         Channel chan;
 142                         if (target.StartsWith("#")) {
 143                                 chanmsg = true;
 144                                 args = new string[msgparts.Length - 1];
 145                                 Array.Copy(msgparts, 1, args, 0, msgparts.Length - 1);
 146                                 chan = new Channel(target);
 147                         } else {
 148                                 chanmsg = false;
 149                                 args = new string[msgparts.Length - 2];
 150                                 Array.Copy(msgparts, 2, args, 0, msgparts.Length - 2);
 151                                 chan = new Channel(msgparts[1]);
 152                         }
 153
 154                         User user = new User(nick);
 155
 156                         Command cmd = new Command(this, cmdstr, args, user, chan, chanmsg);
 157                 }
 158
 159         private void register() {
 160             send(String.Format("NICK {0}", nick));
 161             send(String.Format("USER {0} * * :{1}", ident, realname));
 162             online = true;
 163         }
 164     }
 165
 166     public class InvalidStateException : Exception { }
 167
 168     public class Stator {
 169         public byte[] buffer = new byte[1];
 170         public StringBuilder buffersb = new StringBuilder();
 171     }
 172 }