benharri.org
IRC parsing, tokenization, and state handling in C#
1# IRCStates
2
3port of [jesopo/ircstates](https://github.com/jesopo/ircstates)
4
5available on [nuget](https://www.nuget.org/packages/IRCStates)
6
7bare bones irc client state
8
9see the full example in [StatesSample/Client.cs](../Examples/States/Client.cs)
10
11 internal class Client
12 {
13 private readonly byte[] _bytes;
14 private readonly StatefulEncoder _encoder;
15 private readonly string _host;
16 private readonly string _nick;
17 private readonly int _port;
18 private readonly Server _server;
19 private readonly Socket _socket;
20
21 public Client(string host, int port, string nick)
22 {
23 _server = new Server("test");
24 _socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
25 _encoder = new StatefulEncoder();
26 _host = host;
27 _port = port;
28 _nick = nick;
29 _bytes = new byte[1024];
30 }
31
32 private void Send(string raw)
33 {
34 _encoder.Push(new Line(raw));
35 }
36
37 public void Start()
38 {
39 _socket.Connect(_host, _port);
40 while (!_socket.Connected) Thread.Sleep(1000);
41
42 Send("USER test 0 * test");
43 Send($"NICK {_nick}");
44
45 while (true)
46 {
47 while (_encoder.PendingBytes.Any())
48 {
49 foreach (var line in _encoder.Pop(_socket.Send(_encoder.PendingBytes)))
50 Console.WriteLine($"> {line.Format()}");
51 }
52
53 var bytesReceived = _socket.Receive(_bytes);
54 if (bytesReceived == 0)
55 {
56 Console.WriteLine("! disconnected");
57 _socket.Shutdown(SocketShutdown.Both);
58 _socket.Close();
59 break;
60 }
61
62 var receivedLines = _server.Receive(_bytes, bytesReceived);
63 foreach (var (line, _) in receivedLines)
64 {
65 Console.WriteLine($"< {line.Format()}");
66
67 switch (line.Command)
68 {
69 case Commands.Privmsg:
70 if (line.Params[1].Contains(_server.NickName))
71 Send($"PRIVMSG {line.Params[0]} :hi {line.Hostmask.NickName}!");
72 break;
73 case "PING":
74 Send($"PONG :{line.Params[0]}");
75 break;
76 case Numeric.RPL_WELCOME:
77 if (!_server.HasChannel("#test")) Send("JOIN #test");
78 break;
79 }
80 }
81 }
82 }
83 }