/// <summary>
/// Read line callback
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnReadLine(object sender, ReadLineEventArgs e)
{
try
{
var command = e.Line.Split(' ')[1];
if (command.Equals("PING"))
{
var server = e.Line.Split(' ')[2];
_irc.WriteLine("PONG " + server, Priority.Critical);
}
else if (command.Equals("422") || command.Equals("376")) // 422: motd missing // 376: end of motd
{
_irc.RfcJoin(_ircChannel);
}
}
catch (Exception ex)
{
Logger.Error(ex);
}
}
/// <inheritdoc />
public override Task <bool> Connect(CancellationToken cancellationToken) => Task.Factory.StartNew(() =>
{
disconnecting = false;
lock (this)
try
{
client.Connect(address, port);
cancellationToken.ThrowIfCancellationRequested();
if (passwordType == IrcPasswordType.Server)
{
client.Login(nickname, nickname, 0, nickname, password);
}
else
{
if (passwordType == IrcPasswordType.Sasl)
{
client.WriteLine("CAP REQ :sasl", Priority.Critical); // needs to be put in the buffer before anything else
cancellationToken.ThrowIfCancellationRequested();
}
client.Login(nickname, nickname, 0, nickname);
}
if (passwordType == IrcPasswordType.NickServ)
{
cancellationToken.ThrowIfCancellationRequested();
client.SendMessage(SendType.Message, "NickServ", String.Format(CultureInfo.InvariantCulture, "IDENTIFY {0}", password));
}
else if (passwordType == IrcPasswordType.Sasl)
{
// wait for the sasl ack or timeout
var recievedAck = false;
var recievedPlus = false;
client.OnReadLine += (sender, e) =>
{
if (e.Line.Contains("ACK :sasl", StringComparison.Ordinal))
{
recievedAck = true;
}
else if (e.Line.Contains("AUTHENTICATE +", StringComparison.Ordinal))
{
recievedPlus = true;
}
};
var startTime = DateTimeOffset.Now;
var endTime = DateTimeOffset.Now.AddSeconds(TimeoutSeconds);
cancellationToken.ThrowIfCancellationRequested();
var listenTimeSpan = TimeSpan.FromMilliseconds(10);
for (; !recievedAck && DateTimeOffset.Now <= endTime; asyncDelayer.Delay(listenTimeSpan, cancellationToken).GetAwaiter().GetResult())
{
client.Listen(false);
}
client.WriteLine("AUTHENTICATE PLAIN", Priority.Critical);
cancellationToken.ThrowIfCancellationRequested();
for (; !recievedPlus && DateTimeOffset.Now <= endTime; asyncDelayer.Delay(listenTimeSpan, cancellationToken).GetAwaiter().GetResult())
{
client.Listen(false);
}
// Stolen! https://github.com/znc/znc/blob/1e697580155d5a38f8b5a377f3b1d94aaa979539/modules/sasl.cpp#L196
var authString = String.Format(CultureInfo.InvariantCulture, "{0}{1}{0}{1}{2}", nickname, '\0', password);
var b64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(authString));
var authLine = String.Format(CultureInfo.InvariantCulture, "AUTHENTICATE {0}", b64);
var chars = authLine.ToCharArray();
client.WriteLine(authLine, Priority.Critical);
cancellationToken.ThrowIfCancellationRequested();
client.WriteLine("CAP END", Priority.Critical);
}
client.Listen(false);
listenTask = Task.Factory.StartNew(() =>
{
while (!disconnecting && client.IsConnected && client.Nickname != nickname)
{
client.ListenOnce(true);
if (disconnecting || !client.IsConnected)
{
break;
}
client.Listen(false);
// ensure we have the correct nick
if (client.GetIrcUser(nickname) == null)
{
client.RfcNick(nickname);
}
}
client.Listen();
}, cancellationToken, TaskCreationOptions.LongRunning, TaskScheduler.Current);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception e)
{
Logger.LogWarning("Unable to connect to IRC: {0}", e);
return(false);
}
return(true);
}, cancellationToken, TaskCreationOptions.LongRunning, TaskScheduler.Current);
