internal void Parse(Connection connection, string message) { Debug.WriteLineIf(DccUtil.DccTrace.TraceInfo, "[" + Thread.CurrentThread.Name + "] DccListener::Parse()"); Match match = parser.Match(message); string requestor = match.Groups[1].ToString(); string[] tokens = tokenizer.Split(match.Groups[2].ToString().Trim()); switch (tokens[Action]) { case CHAT: if (OnDccChatRequest != null) { //Test for sufficient number of arguments if (tokens.Length < 4) { connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect CHAT arguments: " + message); return; } //Send event DccUser dccUser = null; try { dccUser = new DccUser( connection, Rfc2812Util.ParseUserLine(requestor), new IPEndPoint(DccUtil.LongToIPAddress(tokens[Address]), int.Parse(tokens[Port], CultureInfo.InvariantCulture))); } catch (ArgumentException) { connection.Listener.Error(ReplyCode.BadDccEndpoint, "Invalid TCP/IP connection information sent."); return; } try { OnDccChatRequest(dccUser); } catch (ArgumentException ae) { connection.Listener.Error(ReplyCode.UnknownEncryptionProtocol, ae.ToString()); } } break; case SEND: //Test for sufficient number of arguments if (tokens.Length < 5) { connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect SEND arguments: " + message); return; } if (OnDccSendRequest != null) { DccUser dccUser = null; try { dccUser = new DccUser( connection, Rfc2812Util.ParseUserLine(requestor), new IPEndPoint(DccUtil.LongToIPAddress(tokens[Address]), int.Parse(tokens[Port], CultureInfo.InvariantCulture))); } catch (ArgumentException ae) { connection.Listener.Error(ReplyCode.BadDccEndpoint, ae.ToString()); return; } try { OnDccSendRequest( dccUser, tokens[FileName], int.Parse(tokens[FileSize], CultureInfo.InvariantCulture), IsTurbo(5, tokens)); } catch (ArgumentException ae) { connection.Listener.Error(ReplyCode.UnknownEncryptionProtocol, ae.ToString()); } } break; case GET: //Test for sufficient number of arguments if (tokens.Length < 2) { connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect GET arguments: " + message); return; } if (OnDccGetRequest != null) { try { OnDccGetRequest( new DccUser( connection, Rfc2812Util.ParseUserLine(requestor)), tokens[FileName], IsTurbo(2, tokens)); } catch (ArgumentException ae) { connection.Listener.Error(ReplyCode.UnknownEncryptionProtocol, ae.ToString()); } } break; case ACCEPT: //Test for sufficient number of arguments if (tokens.Length < 4) { connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect DCC ACCEPT arguments: " + message); return; } //DccListener will try to handle Receive at correct file position try { DccFileSession session = DccFileSessionManager.DefaultInstance.LookupSession("C" + tokens[2]); session.OnDccAcceptReceived(long.Parse(tokens[3], CultureInfo.InvariantCulture)); } catch (ArgumentException e) { connection.Listener.Error(ReplyCode.UnableToResume, e.ToString()); } break; case RESUME: //Test for sufficient number of arguments if (tokens.Length < 4) { connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect DCC RESUME arguments: " + message); return; } //DccListener will automatically handle Resume/Accept interaction try { DccFileSession session = DccFileSessionManager.DefaultInstance.LookupSession("S" + tokens[2]); session.OnDccResumeRequest(long.Parse(tokens[3], CultureInfo.InvariantCulture)); } catch (ArgumentException e) { connection.Listener.Error(ReplyCode.UnableToResume, e.ToString()); } break; default: connection.Listener.Error(ReplyCode.UnparseableMessage, message); Debug.WriteLineIf(DccUtil.DccTrace.TraceError, "[" + Thread.CurrentThread.Name + "] DccListener::Parse() Unknown DCC command"); break; } }