예제 #1
0
        private void ParseReply(string[] tokens)
        {
            ReplyCode code = (ReplyCode)int.Parse(tokens[1], CultureInfo.InvariantCulture);

            tokens[3] = RemoveLeadingColon(tokens[3]);
            switch (code)
            {
            //Messages sent upon successful registration
            case ReplyCode.RPL_WELCOME:
            case ReplyCode.RPL_YOURESERVICE:
                if (OnRegistered != null)
                {
                    OnRegistered(this, new EventArgs());
                }
                break;

            case ReplyCode.RPL_MOTDSTART:
            case ReplyCode.RPL_MOTD:
                if (OnMotd != null)
                {
                    OnMotd(CondenseStrings(tokens, 3), false);
                }
                break;

            case ReplyCode.RPL_ENDOFMOTD:
                if (OnMotd != null)
                {
                    OnMotd(CondenseStrings(tokens, 3), true);
                }
                break;

            case ReplyCode.RPL_ISON:
                if (OnIson != null)
                {
                    OnIson(tokens[3]);
                }
                break;

            case ReplyCode.RPL_NAMREPLY:
                if (OnNames != null)
                {
                    if (tokens[2].EndsWith("="))     //hack: Gamesurge sometimes does this
                    {
                        var newtokens = new List <string>(tokens);
                        newtokens.RemoveAt(2);
                        newtokens.Insert(2, tokens[2].Remove(tokens[2].Length - 1));
                        newtokens.Insert(3, "=");
                        tokens = newtokens.ToArray();
                    }
                    tokens[5] = RemoveLeadingColon(tokens[5]);
                    int      numberOfUsers = tokens.Length - 5;
                    string[] users         = new string[numberOfUsers];
                    Array.Copy(tokens, 5, users, 0, numberOfUsers);
                    OnNames(this, new NamesEventArgs(tokens[4], users, false));
                    //Trace.WriteLine("Names", "IRC");
                }
                break;

            case ReplyCode.RPL_ENDOFNAMES:
                if (OnNames != null)
                {
                    OnNames(this, new NamesEventArgs(tokens[3], new string[0], true));
                    //Trace.WriteLine("Names end", "IRC");
                }
                break;

            case ReplyCode.RPL_LIST:
                if (OnList != null)
                {
                    tokens[5] = RemoveLeadingColon(tokens[5]);
                    OnList(
                        tokens[3],
                        int.Parse(tokens[4], CultureInfo.InvariantCulture),
                        CondenseStrings(tokens, 5),
                        false);
                }
                break;

            case ReplyCode.RPL_LISTEND:
                if (OnList != null)
                {
                    OnList("", 0, "", true);
                }
                break;

            case ReplyCode.ERR_NICKNAMEINUSE:
            case ReplyCode.ERR_NICKCOLLISION:
                if (OnNickError != null)
                {
                    tokens[4] = RemoveLeadingColon(tokens[4]);
                    OnNickError(this, new NickErrorEventArgs(tokens[3], CondenseStrings(tokens, 4)));
                    //Trace.WriteLine("Nick collision", "IRC");
                }
                break;

            case ReplyCode.RPL_NOTOPIC:
                if (OnError != null)
                {
                    OnError(this, new ErrorMessageEventArgs(code, CondenseStrings(tokens, 3)));
                }
                break;

            case ReplyCode.RPL_TOPIC:
                if (OnRecieveTopic != null)
                {
                    tokens[4] = RemoveLeadingColon(tokens[4]);
                    OnRecieveTopic(tokens[3], CondenseStrings(tokens, 4));
                }
                break;

            case ReplyCode.RPL_INVITING:
                if (OnInviteSent != null)
                {
                    OnInviteSent(this, new InviteSentEventArgs(tokens[3], tokens[4]));
                }
                break;

            case ReplyCode.RPL_AWAY:
                if (OnAway != null)
                {
                    OnAway(this, new AwayEventArgs(tokens[3], RemoveLeadingColon(CondenseStrings(tokens, 4))));
                }
                break;

            case ReplyCode.RPL_WHOREPLY:
                if (OnWho != null)
                {
                    User user = new User(tokens[7], tokens[4], tokens[5]);
                    OnWho(
                        user,
                        tokens[3],
                        tokens[6],
                        tokens[8],
                        int.Parse(RemoveLeadingColon(tokens[9]), CultureInfo.InvariantCulture),
                        tokens[10],
                        false);
                }
                break;

            case ReplyCode.RPL_ENDOFWHO:
                if (OnWho != null)
                {
                    OnWho(User.Empty, "", "", "", 0, "", true);
                }
                break;

            case ReplyCode.RPL_WHOISUSER:
                User      whoUser   = new User(tokens[3], tokens[4], tokens[5]);
                WhoisInfo whoisInfo = LookupInfo(whoUser.Nick);
                whoisInfo.user     = whoUser;
                tokens[7]          = RemoveLeadingColon(tokens[7]);
                whoisInfo.realName = CondenseStrings(tokens, 7);
                break;

            case ReplyCode.RPL_WHOISCHANNELS:
                WhoisInfo whoisChannelInfo = LookupInfo(tokens[3]);
                tokens[4] = RemoveLeadingColon(tokens[4]);
                int      numberOfChannels = tokens.Length - 4;
                string[] channels         = new String[numberOfChannels];
                Array.Copy(tokens, 4, channels, 0, numberOfChannels);
                whoisChannelInfo.SetChannels(channels);
                break;

            case ReplyCode.RPL_WHOISSERVER:
                WhoisInfo whoisServerInfo = LookupInfo(tokens[3]);
                whoisServerInfo.ircServer = tokens[4];
                tokens[5] = RemoveLeadingColon(tokens[5]);
                whoisServerInfo.serverDescription = CondenseStrings(tokens, 5);
                break;

            case ReplyCode.RPL_WHOISOPERATOR:
                WhoisInfo whoisOpInfo = LookupInfo(tokens[3]);
                whoisOpInfo.isOperator = true;
                break;

            case ReplyCode.RPL_WHOISIDLE:
                WhoisInfo whoisIdleInfo = LookupInfo(tokens[3]);
                whoisIdleInfo.idleTime = long.Parse(tokens[5], CultureInfo.InvariantCulture);
                break;

            case ReplyCode.RPL_ENDOFWHOIS:
                string    nick         = tokens[3];
                WhoisInfo whoisEndInfo = LookupInfo(nick);
                if (OnWhois != null)
                {
                    OnWhois(whoisEndInfo);
                }
                whoisInfos.Remove(nick);
                break;

            case ReplyCode.RPL_WHOWASUSER:
                if (OnWhowas != null)
                {
                    User whoWasUser = new User(tokens[3], tokens[4], tokens[5]);
                    tokens[7] = RemoveLeadingColon(tokens[7]);
                    OnWhowas(whoWasUser, CondenseStrings(tokens, 7), false);
                }
                break;

            case ReplyCode.RPL_ENDOFWHOWAS:
                if (OnWhowas != null)
                {
                    OnWhowas(User.Empty, "", true);
                }
                break;

            case ReplyCode.RPL_UMODEIS:
                if (OnUserModeRequest != null)
                {
                    //First drop the '+'
                    string     chars = tokens[3].Substring(1);
                    UserMode[] modes = Rfc2812Util.UserModesToArray(chars);
                    OnUserModeRequest(modes);
                }
                break;

            case ReplyCode.RPL_CHANNELMODEIS:
                if (OnChannelModeRequest != null)
                {
                    try
                    {
                        ChannelModeInfo[] modes = ChannelModeInfo.ParseModes(tokens, 4);
                        OnChannelModeRequest(tokens[3], modes);
                    }
                    catch (Exception)
                    {
                        if (OnError != null)
                        {
                            OnError(this, new ErrorMessageEventArgs(ReplyCode.UnparseableMessage, CondenseStrings(tokens, 0)));
                        }
                        Debug.WriteLineIf(Rfc2812Util.IrcTrace.TraceWarning, "[" + Thread.CurrentThread.Name + "] Listener::ParseReply() Bad IRC MODE string=" + tokens[0]);
                    }
                }
                break;

            case ReplyCode.RPL_BANLIST:
                if (OnChannelList != null)
                {
                    OnChannelList(tokens[3], ChannelMode.Ban, tokens[4], Rfc2812Util.UserFromString(tokens[5]), Convert.ToInt64(tokens[6], CultureInfo.InvariantCulture), false);
                }
                break;

            case ReplyCode.RPL_ENDOFBANLIST:
                if (OnChannelList != null)
                {
                    OnChannelList(tokens[3], ChannelMode.Ban, "", User.Empty, 0, true);
                }
                break;

            case ReplyCode.RPL_INVITELIST:
                if (OnChannelList != null)
                {
                    OnChannelList(tokens[3], ChannelMode.Invitation, tokens[4], Rfc2812Util.UserFromString(tokens[5]), Convert.ToInt64(tokens[6]), false);
                }
                break;

            case ReplyCode.RPL_ENDOFINVITELIST:
                if (OnChannelList != null)
                {
                    OnChannelList(tokens[3], ChannelMode.Invitation, "", User.Empty, 0, true);
                }
                break;

            case ReplyCode.RPL_EXCEPTLIST:
                if (OnChannelList != null)
                {
                    OnChannelList(tokens[3], ChannelMode.Exception, tokens[4], Rfc2812Util.UserFromString(tokens[5]), Convert.ToInt64(tokens[6]), false);
                }
                break;

            case ReplyCode.RPL_ENDOFEXCEPTLIST:
                if (OnChannelList != null)
                {
                    OnChannelList(tokens[3], ChannelMode.Exception, "", User.Empty, 0, true);
                }
                break;

            case ReplyCode.RPL_UNIQOPIS:
                if (OnChannelList != null)
                {
                    OnChannelList(tokens[3], ChannelMode.ChannelCreator, tokens[4], User.Empty, 0, true);
                }
                break;

            case ReplyCode.RPL_VERSION:
                if (OnVersion != null)
                {
                    OnVersion(CondenseStrings(tokens, 3));
                }
                break;

            case ReplyCode.RPL_TIME:
                if (OnTime != null)
                {
                    OnTime(CondenseStrings(tokens, 3));
                }
                break;

            case ReplyCode.RPL_INFO:
                if (OnInfo != null)
                {
                    OnInfo(CondenseStrings(tokens, 3), false);
                }
                break;

            case ReplyCode.RPL_ENDOFINFO:
                if (OnInfo != null)
                {
                    OnInfo(CondenseStrings(tokens, 3), true);
                }
                break;

            case ReplyCode.RPL_ADMINME:
            case ReplyCode.RPL_ADMINLOC1:
            case ReplyCode.RPL_ADMINLOC2:
            case ReplyCode.RPL_ADMINEMAIL:
                if (OnAdmin != null)
                {
                    OnAdmin(RemoveLeadingColon(CondenseStrings(tokens, 3)));
                }
                break;

            case ReplyCode.RPL_LUSERCLIENT:
            case ReplyCode.RPL_LUSEROP:
            case ReplyCode.RPL_LUSERUNKNOWN:
            case ReplyCode.RPL_LUSERCHANNELS:
            case ReplyCode.RPL_LUSERME:
                if (OnLusers != null)
                {
                    OnLusers(RemoveLeadingColon(CondenseStrings(tokens, 3)));
                }
                break;

            case ReplyCode.RPL_LINKS:
                if (OnLinks != null)
                {
                    OnLinks(tokens[3],                                                              //mask
                            tokens[4],                                                              //hostname
                            int.Parse(RemoveLeadingColon(tokens[5]), CultureInfo.InvariantCulture), //hopcount
                            CondenseStrings(tokens, 6), false);
                }
                break;

            case ReplyCode.RPL_ENDOFLINKS:
                if (OnLinks != null)
                {
                    OnLinks(String.Empty, String.Empty, -1, String.Empty, true);
                }
                break;

            case ReplyCode.RPL_STATSLINKINFO:
            case ReplyCode.RPL_STATSCOMMANDS:
            case ReplyCode.RPL_STATSUPTIME:
            case ReplyCode.RPL_STATSOLINE:
                if (OnStats != null)
                {
                    OnStats(GetQueryType(code), RemoveLeadingColon(CondenseStrings(tokens, 3)), false);
                }
                break;

            case ReplyCode.RPL_ENDOFSTATS:
                if (OnStats != null)
                {
                    OnStats(Rfc2812Util.CharToStatsQuery(tokens[3][0]), RemoveLeadingColon(CondenseStrings(tokens, 4)), true);
                }
                break;

            default:
                HandleDefaultReply(code, tokens);
                break;
            }
        }
예제 #2
0
 public void ProcessJoinCommand(IrcMessage ircMessage)
 {
     OnJoin?.Invoke(Rfc2812Util.UserFromString(ircMessage.From), ircMessage.Target);
 }
예제 #3
0
        /// <summary>
        /// Parse the message and call the callback methods
        /// on the listeners.
        ///
        /// </summary>
        /// <param name="tokens">The text received from the IRC server</param>
        private void ParseCommand(string[] tokens)
        {
            //Remove colon user info string
            tokens[0] = RemoveLeadingColon(tokens[0]);
            switch (tokens[1])
            {
            case PONG:
                break;

            case NOTICE:
                tokens[3] = RemoveLeadingColon(tokens[3]);
                if (Rfc2812Util.IsValidChannelName(tokens[2]))
                {
                    if (OnPublicNotice != null)
                    {
                        OnPublicNotice(this, new UserChannelMessageEventArgs(
                                           Rfc2812Util.UserFromString(tokens[0]),
                                           tokens[2],
                                           CondenseStrings(tokens, 3)));
                        //Trace.WriteLine("Public notice", "IRC");
                    }
                }
                else
                {
                    if (OnPrivateNotice != null)
                    {
                        OnPrivateNotice(this, new UserMessageEventArgs(
                                            Rfc2812Util.UserFromString(tokens[0]),
                                            CondenseStrings(tokens, 3)));
                        //Trace.WriteLine("Private notice", "IRC");
                    }
                }
                break;

            case JOIN:
                if (OnJoin != null)
                {
                    OnJoin(Rfc2812Util.UserFromString(tokens[0]), RemoveLeadingColon(tokens[2]));
                    //Trace.WriteLine("Join", "IRC");
                }
                break;

            case PRIVMSG:
                tokens[3] = RemoveLeadingColon(tokens[3]);
                if (tokens[3] == ACTION)
                {
                    if (Rfc2812Util.IsValidChannelName(tokens[2]))
                    {
                        if (OnAction != null)
                        {
                            int last = tokens.Length - 1;
                            tokens[last] = RemoveTrailingQuote(tokens[last]);
                            OnAction(this, new UserChannelMessageEventArgs(Rfc2812Util.UserFromString(tokens[0]), tokens[2], CondenseStrings(tokens, 4)));
                            //Trace.WriteLine("Channel action", "IRC");
                        }
                    }
                    else
                    {
                        if (OnPrivateAction != null)
                        {
                            int last = tokens.Length - 1;
                            tokens[last] = RemoveTrailingQuote(tokens[last]);
                            OnPrivateAction(this, new UserMessageEventArgs(Rfc2812Util.UserFromString(tokens[0]), CondenseStrings(tokens, 4)));
                            //Trace.WriteLine("Private action", "IRC");
                        }
                    }
                }
                else if (channelPattern.IsMatch(tokens[2]))
                {
                    if (OnPublic != null)
                    {
                        OnPublic(this, new UserChannelMessageEventArgs(Rfc2812Util.UserFromString(tokens[0]), tokens[2], CondenseStrings(tokens, 3)));
                        Trace.WriteLine("Public msg", "IRC");
                    }
                }
                else
                {
                    if (OnPrivate != null)
                    {
                        OnPrivate(this, new UserMessageEventArgs(Rfc2812Util.UserFromString(tokens[0]), CondenseStrings(tokens, 3)));
                        //Trace.WriteLine("Private msg", "IRC");
                    }
                }
                break;

            case NICK:
                if (OnNick != null)
                {
                    OnNick(this, new NickChangeEventArgs(Rfc2812Util.UserFromString(tokens[0]), RemoveLeadingColon(tokens[2])));
                    //Trace.WriteLine("Nick", "IRC");
                }
                break;

            case TOPIC:
                if (OnTopicChanged != null)
                {
                    tokens[3] = RemoveLeadingColon(tokens[3]);
                    OnTopicChanged(this, new UserChannelMessageEventArgs(
                                       Rfc2812Util.UserFromString(tokens[0]), tokens[2], CondenseStrings(tokens, 3)));
                    //Trace.WriteLine("Topic changed", "IRC");
                }
                break;

            case PART:
                if (OnPart != null)
                {
                    OnPart(
                        Rfc2812Util.UserFromString(tokens[0]),
                        RemoveLeadingColon(tokens[2]),
                        tokens.Length >= 4 ? RemoveLeadingColon(CondenseStrings(tokens, 3)) : "");
                    //Trace.WriteLine("Part", "IRC");
                }
                break;

            case QUIT:
                if (OnQuit != null)
                {
                    tokens[2] = RemoveLeadingColon(tokens[2]);
                    OnQuit(Rfc2812Util.UserFromString(tokens[0]), CondenseStrings(tokens, 2));
                    //Trace.WriteLine("Quit", "IRC");
                }
                break;

            case INVITE:
                if (OnInvite != null)
                {
                    OnInvite(
                        Rfc2812Util.UserFromString(tokens[0]), RemoveLeadingColon(tokens[3]));
                    //Trace.WriteLine("Invite", "IRC");
                }
                break;

            case KICK:
                if (OnKick != null)
                {
                    tokens[4] = RemoveLeadingColon(tokens[4]);
                    OnKick(Rfc2812Util.UserFromString(tokens[0]), tokens[2], tokens[3], CondenseStrings(tokens, 4));
                    //Trace.WriteLine("Kick", "IRC");
                }
                break;

            case MODE:
                if (channelPattern.IsMatch(tokens[2]))
                {
                    if (OnChannelModeChange != null)
                    {
                        User who = Rfc2812Util.UserFromString(tokens[0]);
                        try
                        {
                            ChannelModeInfo[] modes = ChannelModeInfo.ParseModes(tokens, 3);
                            string            raw   = CondenseStrings(tokens, 3);
                            OnChannelModeChange(who, tokens[2], modes, raw);
                            Trace.WriteLine("Channel mode change", "IRC");
                        }
                        catch (Exception)
                        {
                            if (OnError != null)
                            {
                                OnError(this, new ErrorMessageEventArgs(ReplyCode.UnparseableMessage, CondenseStrings(tokens, 0)));
                            }
                            Debug.WriteLineIf(Rfc2812Util.IrcTrace.TraceWarning, "[" + Thread.CurrentThread.Name + "] Listener::ParseCommand() Bad IRC MODE string=" + tokens[0]);
                        }
                    }
                }
                else
                {
                    if (OnUserModeChange != null)
                    {
                        tokens[3] = RemoveLeadingColon(tokens[3]);
                        OnUserModeChange(this, new UserModeChangeEventArgs(Rfc2812Util.CharToModeAction(tokens[3][0]),
                                                                           Rfc2812Util.CharToUserMode(tokens[3][1])));
                        //Trace.WriteLine("User mode change", "IRC");
                    }
                }
                break;

            case KILL:
                if (OnKill != null)
                {
                    string reason = "";
                    if (tokens.Length >= 4)
                    {
                        tokens[3] = RemoveLeadingColon(tokens[3]);
                        reason    = CondenseStrings(tokens, 3);
                    }
                    OnKill(Rfc2812Util.UserFromString(tokens[0]), tokens[2], reason);
                }
                break;

            default:
                if (OnError != null)
                {
                    OnError(this, new ErrorMessageEventArgs(ReplyCode.UnparseableMessage, CondenseStrings(tokens, 0)));
                }
                Debug.WriteLineIf(Rfc2812Util.IrcTrace.TraceWarning, "[" + Thread.CurrentThread.Name + "] Listener::ParseCommand() Unknown IRC command=" + tokens[1]);
                //Trace.WriteLine("Unknown command", "IRC");
                break;
            }
        }
예제 #4
0
 public void ProcessNickCommand(IrcMessage message)
 {
     OnNick.Fire(this, new NickChangeEventArgs(Rfc2812Util.UserFromString(message.From), message.Message));
 }
예제 #5
0
 private void ProcessJoinCommand(string[] tokens)
 {
     OnJoin?.Invoke(Rfc2812Util.UserFromString(tokens[0]), RemoveLeadingColon(tokens[2]));
     //Trace.WriteLine("Join", "IRC");
 }
예제 #6
0
 private void ProcessQuitCommand(string[] tokens)
 {
     tokens[2] = RemoveLeadingColon(tokens[2]);
     OnQuit?.Invoke(Rfc2812Util.UserFromString(tokens[0]), CondenseStrings(tokens, 2));
     //Trace.WriteLine("Quit", "IRC");
 }
예제 #7
0
 private void ProcessNickCommand(string[] tokens)
 {
     OnNick.Fire(this, new NickChangeEventArgs(Rfc2812Util.UserFromString(tokens[0]), RemoveLeadingColon(tokens[2])));
     //Trace.WriteLine("Nick", "IRC");
 }
예제 #8
0
 public void ProcessKickCommand(IrcMessage ircMessage)
 {
     OnKick?.Invoke(Rfc2812Util.UserFromString(ircMessage.From), ircMessage.Tokens[2], ircMessage.Tokens[3], ircMessage.Message);
 }
예제 #9
0
 private void ProcessKickCommand(string[] tokens)
 {
     tokens[4] = RemoveLeadingColon(tokens[4]);
     OnKick?.Invoke(Rfc2812Util.UserFromString(tokens[0]), tokens[2], tokens[3], CondenseStrings(tokens, 4));
     //Trace.WriteLine("Kick", "IRC");
 }
예제 #10
0
        public void ProcessInviteCommand(IrcMessage ircMessage)
        {
            var fromUser = Rfc2812Util.UserFromString(ircMessage.From);

            OnInvite.Fire(this, new InviteEventArgs(fromUser.Nick, ircMessage.Message));
        }
예제 #11
0
        internal static ChannelModeInfo[] ParseModes(string[] tokens, int start)
        {
            //This nice piece of code was contributed by Klemen Šavs.
            //25 October 2003
            ArrayList modeInfoArray = new ArrayList();
            int       i             = start;

            while (i < tokens.Length)
            {
                ChannelModeInfo modeInfo  = new ChannelModeInfo();
                int             parmIndex = i + 1;
                for (int j = 0; j < tokens[i].Length; j++)
                {
                    while (j < tokens[i].Length && tokens[i][j] == '+')
                    {
                        modeInfo.Action = ModeAction.Add;
                        j++;
                    }

                    while (j < tokens[i].Length && tokens[i][j] == '-')
                    {
                        modeInfo.Action = ModeAction.Remove;
                        j++;
                    }

                    if (j == 0)
                    {
                        break;
                    }
                    else if (j < tokens[i].Length)
                    {
                        switch (tokens[i][j])
                        {
                        case 'o':
                        case 'h':
                        case 'v':
                        case 'b':
                        case 'e':
                        case 'I':
                        case 'k':
                        case 'O':
                            modeInfo.Mode      = Rfc2812Util.CharToChannelMode(tokens[i][j]);
                            modeInfo.Parameter = tokens[parmIndex++];
                            break;

                        case 'l':
                            modeInfo.Mode = Rfc2812Util.CharToChannelMode(tokens[i][j]);
                            if (modeInfo.Action == ModeAction.Add)
                            {
                                modeInfo.Parameter = tokens[parmIndex++];
                            }
                            else
                            {
                                modeInfo.Parameter = "";
                            }
                            break;

                        default:
                            modeInfo.Mode      = Rfc2812Util.CharToChannelMode(tokens[i][j]);
                            modeInfo.Parameter = "";
                            break;
                        }
                    }
                    modeInfoArray.Add(modeInfo.MemberwiseClone());
                }
                i = parmIndex;
            }

            ChannelModeInfo[] modes = new ChannelModeInfo[modeInfoArray.Count];
            for (int k = 0; k < modeInfoArray.Count; k++)
            {
                modes[k] = (ChannelModeInfo)modeInfoArray[k];
            }
            return(modes);
        }
예제 #12
0
        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;
            }
        }