public async Task <ConnectResponse> ConnectAsync()
{
if (Client != null)
{
return(new ConnectResponse(message: "Already connected!"));
}
Client = new TcpClient();
await Client.ConnectAsync(Host, Port).ConfigureAwait(false);
if (!Client.Connected)
{
throw new IOException($"Could not connect to {Host} on port {Port}.");
}
ReceivedLines.Clear();
AtLeastOneResponseReceived = false;
ClientStream = Client.GetStream();
ClientReader = new StreamReader(ClientStream);
ClientWriter = new StreamWriter(ClientStream)
{
NewLine = "\n"
};
string message = await ReadLineAsync().ConfigureAwait(false);
CommunicationLog.RawMessageReceived(message);
QueryType queryType;
if (message.StartsWith("TS3", StringComparison.OrdinalIgnoreCase))
{
queryType = QueryType.Server;
}
else if (message.StartsWith("TS3 Client", StringComparison.OrdinalIgnoreCase))
{
queryType = QueryType.Client;
}
else
{
string statusMessage = $"Invalid greeting received: {message}";
DisconnectForced(statusMessage);
return(new ConnectResponse(statusMessage));
}
Connected = true;
ReadLoopTask = Task.Factory.StartNew(ReadLoop, TaskCreationOptions.LongRunning);
KeepAliveTask = Task.Factory.StartNew(KeepAliveLoop, TaskCreationOptions.LongRunning);
return(new ConnectResponse(message, queryType, true));
}
protected async void ReadLoop()
{
while (Client != null && Client.Connected)
{
string message = await ReadLineAsync(false).ConfigureAwait(false);
CommunicationLog.RawMessageReceived(message);
if (message == null)
{
continue;
}
if (message.StartsWith("error", StringComparison.CurrentCultureIgnoreCase))
{
if (!AtLeastOneResponseReceived)
{
AtLeastOneResponseReceived = true;
// Remove welcome messages after connect
ReceivedLines.Clear();
}
string responseText = string.Join(Util.QUERY_LINE_BREAK, ReceivedLines.Concat(new[] { message }));
MessageResponses.Enqueue(responseText);
ReceivedLines.Clear();
CommandResponse commandResponse = new CommandResponse();
commandResponse.ApplyResponseText(responseText);
if (commandResponse.IsBanned)
{
BanDetected?.Invoke(this, new EventArgs <ICommandResponse>(commandResponse));
DisconnectForced("Banned!");
return;
}
}
else if (message.StartsWith("notify", StringComparison.CurrentCultureIgnoreCase))
{
// If 2 or more notifications are equal in a 200ms range, consider just one of them.
if (LastRawNotification == message && (DateTime.Now - LastNotificationTime).TotalMilliseconds < 200)
{
continue;
}
LastRawNotification = message;
LastNotificationTime = DateTime.Now;
int indexOfFirstWhitespace = message.IndexOf(' ');
string notificationName = message.Substring(0, indexOfFirstWhitespace);
NotificationHub?.HandleRawNotification(this, notificationName, message);
}
else
{
if (!AtLeastOneResponseReceived)
{
const string LastServerConnectionHandlerIdText = "selected schandlerid=";
if (message.StartsWith(LastServerConnectionHandlerIdText, StringComparison.CurrentCultureIgnoreCase) && int.TryParse(message.Substring(LastServerConnectionHandlerIdText.Length).Trim(), out int handlerId))
{
LastServerConnectionHandlerId = handlerId;
}
}
ReceivedLines.Add(message);
}
}
}