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IRC.cs
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IRC.cs
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// Part of fCraft | fCraft is copyright 2009-2013 Matvei Stefarov <me@matvei.org> | BSD-3 | See LICENSE.txt
/* Based, in part, on SmartIrc4net code. Original license is reproduced below.
*
*
*
* SmartIrc4net - the IRC library for .NET/C# <http://smartirc4net.sf.net>
*
* Copyright (c) 2003-2005 Mirco Bauer <meebey@meebey.net> <http://www.meebey.net>
*
* Full LGPL License: <http://www.gnu.org/licenses/lgpl.txt>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using fCraft.Events;
using JetBrains.Annotations;
namespace fCraft
{
/// <summary> IRC control class. </summary>
public static class IRC
{
const string ResetReplacement = "\u0003\u000F",
BoldReplacement = "\u0002",
Reset = "\u211C",
Bold = "\u212C";
static readonly Regex IrcNickRegex = new Regex(@"\A[a-z_\-\[\]\\^{}|`][a-z0-9_\-\[\]\\^{}|`]*\z",
RegexOptions.IgnoreCase),
UserHostRegex = new Regex(@"^[a-z0-9_\-\[\]\\^{}|`]+\*?=[+-]?(.+@.+)$",
RegexOptions.IgnoreCase),
MaxNickLengthRegex = new Regex(@"NICKLEN=(\d+)");
static int userHostLength = 60,
maxNickLength = 30;
const int MaxMessageSize = 510; // +2 bytes for CR-LF
public static bool acceptPMs = true;
public static Dictionary<string, List<string>> Users = new Dictionary<string, List<string>>();
/// <summary> Class represents an IRC connection/thread.
/// There is an undocumented option (IRCThreads) to "load balance" the outgoing
/// messages between multiple bots. If that's the case, several IrcThread objects
/// are created. The bots grab messages from IRC.outputQueue whenever they are
/// not on cooldown (a bit of an intentional race condition). </summary>
internal sealed class IrcThread : IDisposable
{
readonly string desiredBotNick;
TcpClient client;
StreamReader reader;
StreamWriter writer;
Thread thread;
bool isConnected;
bool reconnect;
DateTime lastMessageSent;
DateTime lastNickAttempt;
int nickTry;
readonly ConcurrentQueue<string> localQueue = new ConcurrentQueue<string>();
static readonly Encoding Encoding = new UTF8Encoding(false);
public bool IsReady { get; private set; }
public bool ResponsibleForInputParsing { get; set; }
[NotNull]
public string ActualBotNick { get; private set; }
public IrcThread([NotNull] string botNick)
{
if (botNick == null) throw new ArgumentNullException("botNick");
desiredBotNick = botNick;
ActualBotNick = botNick;
}
public bool Start(bool parseInput)
{
ResponsibleForInputParsing = parseInput;
try
{
// start the machinery!
thread = new Thread(IoThread)
{
Name = "ProCraft.IRC",
IsBackground = true,
CurrentCulture = new CultureInfo("en-US")
};
thread.Start();
return true;
}
catch (Exception ex)
{
Logger.Log(LogType.Error,
"IRC: Could not start the bot: {0}",
ex);
return false;
}
}
void Connect()
{
// initialize the client
IPAddress ipToBindTo = IPAddress.Parse(ConfigKey.IP.GetString());
IPEndPoint localEndPoint = new IPEndPoint(ipToBindTo, 0);
client = new TcpClient(localEndPoint)
{
NoDelay = true,
ReceiveTimeout = (int)Timeout.TotalMilliseconds,
SendTimeout = (int)Timeout.TotalMilliseconds
};
client.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, 1);
// connect
client.Connect(hostName, port);
// prepare to read/write
reader = new StreamReader(client.GetStream(), Encoding, false);
writer = new StreamWriter(client.GetStream(), Encoding, 512);
isConnected = true;
}
void Send([NotNull] string msg)
{
if (msg == null) throw new ArgumentNullException("msg");
localQueue.Enqueue(msg);
}
// runs in its own thread, started from Connect()
void IoThread()
{
lastMessageSent = DateTime.UtcNow;
do
{
try
{
ActualBotNick = desiredBotNick;
reconnect = false;
Logger.Log(LogType.IrcStatus,
"Connecting to {0}:{1} as {2}",
hostName,
port,
ActualBotNick);
Connect();
// register
Send(IRCCommands.Nick(ActualBotNick));
string serverName = Color.StripColors(ConfigKey.ServerName.GetString(), true);
Send(IRCCommands.User(ActualBotNick, 8, "ProCraft Server: " + serverName));
lastNickAttempt = DateTime.UtcNow;
nickTry = 0;
Send(IRCCommands.Names(channelNames));
while (isConnected && !reconnect)
{
Thread.Sleep(20);
DateTime now = DateTime.UtcNow;
if (now.Subtract(lastMessageSent) >= SendDelay)
{
string outputLine;
if (localQueue.TryDequeue(out outputLine))
{
#if DEBUG_IRC
Logger.Log( LogType.IrcStatus, "[Out.Local] {0}", outputLine );
#endif
writer.Write(outputLine);
writer.Write('\r');
writer.Write('\n');
lastMessageSent = now;
writer.Flush();
if (outputLine.StartsWith("QUIT"))
{
isConnected = false;
reconnect = false;
break;
}
}
else if (OutputQueue.TryDequeue(out outputLine))
{
#if DEBUG_IRC
Logger.Log( LogType.IrcStatus, "[Out.Global] {0}", outputLine );
#endif
writer.Write(outputLine);
writer.Write('\r');
writer.Write('\n');
lastMessageSent = now;
writer.Flush();
}
else if (ActualBotNick != desiredBotNick &&
now.Subtract(lastNickAttempt) >= NickRetryDelay)
{
RetryForDesiredNick();
}
}
if (client.Client.Available > 0)
{
string line = reader.ReadLine();
if (line == null)
{
reconnect = true;
break;
}
HandleMessage(line);
}
}
}
catch (SocketException ex)
{
LogDisconnectWarning(ex);
reconnect = true;
}
catch (IOException ex)
{
LogDisconnectWarning(ex);
reconnect = true;
#if !DEBUG
}
catch (Exception ex)
{
Logger.LogAndReportCrash("IRC bot crashed", "ProCraft", ex, false);
reconnect = true;
#endif
}
if (reconnect) Thread.Sleep(ReconnectDelay);
} while (reconnect);
}
void RetryForDesiredNick()
{
Logger.Log(LogType.IrcStatus,
"Retrying for desired IRC bot nick ({0} to {1})",
ActualBotNick,
desiredBotNick);
Send(IRCCommands.Nick(desiredBotNick));
lastNickAttempt = DateTime.UtcNow;
lastMessageSent = lastNickAttempt;
}
static void LogDisconnectWarning([NotNull] Exception ex)
{
if (ex == null) throw new ArgumentNullException("ex");
Logger.Log(LogType.Warning,
"IRC: Disconnected ({0}: {1}). Will retry in {2} seconds.",
ex.GetType().Name,
ex.Message,
ReconnectDelay.TotalSeconds);
}
void HandleMessage([NotNull] string message)
{
if (message == null) throw new ArgumentNullException("message");
IRCMessage msg = MessageParser(message, ActualBotNick);
#if DEBUG_IRC
Logger.Log( LogType.IrcStatus, "[{0}.{1}] {2}",
msg.Type, msg.ReplyCode, msg.RawMessage );
#endif
switch (msg.Type)
{
case IRCMessageType.Login:
HandleIrcLogin(msg); return;
case IRCMessageType.Ping:
// ping-pong
Send(IRCCommands.Pong(msg.RawMessageArray[1].Substring(1)));
return;
case IRCMessageType.ChannelAction:
case IRCMessageType.ChannelMessage:
// channel chat
HandleIrcChat(msg); return;
case IRCMessageType.Join:
HandleIrcJoin(msg); return;
case IRCMessageType.Kick:
HandleIrcKick(msg); return;
case IRCMessageType.Part:
case IRCMessageType.Quit:
HandleIrcPartQuit(msg); return;
case IRCMessageType.NickChange:
HandleIrcNickChange(msg); return;
case IRCMessageType.ErrorMessage:
case IRCMessageType.Error:
HandleIrcError(msg); return;
case IRCMessageType.QueryMessage:
HandleIrcQueryMessage(msg); return;
case IRCMessageType.Names:
HandleIrcNames(msg); return;
case IRCMessageType.Kill:
HandleIrcKill(msg); return;
case IRCMessageType.Unknown:
HandleIrcUnknown(msg); return;
}
}
void HandleIrcLogin(IRCMessage msg) {
if (msg.ReplyCode == IRCReplyCode.Welcome) {
AuthWithNickServ();
foreach (string channel in channelNames) {
Send(IRCCommands.Join(channel));
}
IsReady = true;
Send(IRCCommands.Userhost(ActualBotNick));
AssignBotForInputParsing(); // bot should be ready to receive input after joining
} else if (msg.ReplyCode == IRCReplyCode.Bounce) {
Match nickLenMatch = MaxNickLengthRegex.Match(msg.Message);
int len;
if (nickLenMatch.Success && Int32.TryParse(nickLenMatch.Groups[1].Value, out len)) {
maxNickLength = len;
}
}
}
void HandleIrcChat(IRCMessage msg) {
if (!ResponsibleForInputParsing) return;
if (IsBotNick(msg.Nick)) return;
string rawMessage = msg.Message;
if (msg.Type == IRCMessageType.ChannelAction) {
if (rawMessage.StartsWith("\u0001ACTION")) {
rawMessage = rawMessage.Substring(8);
} else {
return;
}
}
string text = ProcessMessageFromIRC(rawMessage);
if (text.Length == 0) return;
if (ConfigKey.IRCBotForwardFromIRC.Enabled()) {
if (msg.Type == IRCMessageType.ChannelAction) {
ProcessChatMessage(ref text);
foreach (Player player in Server.Players.Where(pl => pl.Info.ReadIRC)) {
player.Message("&I(IRC) * {0} {1}", msg.Nick, text);
}
Logger.Log(LogType.IrcChat, "{0}: * {1} {2}", msg.Channel, msg.Nick,
IRCColorsAndNonStandardCharsExceptEmotes.Replace(rawMessage, ""));
} else if (IRCHandlers.HandleCommand(ActualBotNick, msg.Nick, rawMessage)) {
} else if (IRCHandlers.HandlePM(ActualBotNick, msg.Nick, rawMessage)) {
} else {
ProcessChatMessage(ref text);
string discordBotNick = ConfigKey.DiscordBotNick.GetString();
string prefix = msg.Nick == discordBotNick ? "(Discord)" : "(IRC) " + msg.Nick;
foreach (Player player in Server.Players.Where(pl => pl.Info.ReadIRC)) {
player.Message("&I{0}{1}: {2}", prefix, Color.White, text);
}
}
Logger.Log(LogType.IrcChat, "{0}: {1}: {2}", msg.Channel, msg.Nick,
IRCColorsAndNonStandardCharsExceptEmotes.Replace(rawMessage, ""));
} else if (msg.Message.StartsWith("#")) {
ProcessChatMessage(ref text);
string discordBotNick = ConfigKey.DiscordBotNick.GetString();
string prefix = msg.Nick == discordBotNick ? "(Discord)" : "(IRC) " + msg.Nick;
foreach (Player player in Server.Players.Where(pl => pl.Info.ReadIRC)) {
player.Message("&I{0}{1}: {2}", prefix, Color.White, text.Substring(1));
}
Logger.Log(LogType.IrcChat, "{0}: {1}: {2}", msg.Channel, msg.Nick,
IRCColorsAndNonStandardCharsExceptEmotes.Replace(rawMessage, ""));
}
}
void ProcessChatMessage(ref string message) {
message = Chat.Filter(message, null);
bool elapsed = DateTime.UtcNow.Subtract(IRCHandlers.lastUrlExpand).TotalSeconds > 5;
if (elapsed) {
string chatMsg = message; // cannot use message because it is ref
Scheduler.NewTask(t => Chat.getUrls(chatMsg)).RunOnce();
IRCHandlers.lastUrlExpand = DateTime.UtcNow;
}
}
void HandleIrcJoin(IRCMessage msg) {
if (!ResponsibleForInputParsing) return;
if (ConfigKey.IRCBotAnnounceIRCJoins.Enabled()) {
Server.Message("&I(IRC) {0} joined the IRC channel ({1})",
msg.Nick, msg.Channel);
Logger.Log(LogType.IrcChat, "{0} joined the IRC channel ({1})",
msg.Nick, msg.Channel);
}
}
void HandleIrcKick(IRCMessage msg) {
string kicked = msg.RawMessageArray[3];
if (kicked == ActualBotNick) {
// If we got kicked, attempt to rejoin
Logger.Log(LogType.IrcStatus, "IRC Bot was kicked from {0} by {1} ({2}), rejoining.",
msg.Channel, msg.Nick, msg.Message);
Thread.Sleep(ReconnectDelay);
Send(IRCCommands.Join(msg.Channel));
} else {
if (!ResponsibleForInputParsing) return;
// Someone else got kicked -- announce it
string kickMessage = ProcessMessageFromIRC(msg.Message);
Server.Message("&I(IRC) {0} kicked {1} from the IRC channel ({3})",
msg.Nick, kicked, msg.Channel, kickMessage);
kickMessage = IRCColorsAndNonStandardCharsExceptEmotes.Replace(kickMessage, "");
Logger.Log(LogType.IrcChat, "{0} kicked {1} from {2} ({3})",
msg.Nick, kicked, msg.Channel, kickMessage);
}
}
void HandleIrcPartQuit(IRCMessage msg) {
// If someone using our desired nick just quit, retry for that nick
if (msg.Type == IRCMessageType.Quit && msg.Nick == desiredBotNick && ActualBotNick != desiredBotNick) {
RetryForDesiredNick();
return;
}
if (!ResponsibleForInputParsing) return;
// Announce parts/quits of IRC people (except the bots)
if (ConfigKey.IRCBotAnnounceIRCJoins.Enabled() && !IsBotNick(msg.Nick)) {
if (String.IsNullOrEmpty(msg.Channel)) {
Server.Message("&I(IRC) {0} left IRC", msg.Nick);
} else {
Server.Message("&I(IRC) {0} left the IRC channel ({1})", msg.Nick, msg.Channel);
}
string quitMsg = (msg.Message == null) ? "Quit" : msg.Message;
quitMsg = IRCColorsAndNonStandardCharsExceptEmotes.Replace(quitMsg, "");
Logger.Log(LogType.IrcChat, "{0} left {1} ({2})",
msg.Nick, msg.Channel, quitMsg);
}
}
void HandleIrcNickChange(IRCMessage msg) {
if (msg.Nick == ActualBotNick) {
ActualBotNick = msg.Message;
nickTry = 0;
Logger.Log(LogType.IrcStatus, "Bot was renamed from {0} to {1}",
msg.Nick, msg.Message);
AuthWithNickServ();
} else {
if (!ResponsibleForInputParsing) return;
Server.Message("&I(IRC) {0} is now known as {1}",
msg.Nick, msg.Message);
}
}
void HandleIrcError(IRCMessage msg) {
bool die = false;
switch (msg.ReplyCode) {
case IRCReplyCode.ErrorNicknameInUse:
case IRCReplyCode.ErrorNicknameCollision:
// Possibility 1: we tried to go for primary nick, but it's still taken
string currentName = msg.RawMessageArray[2];
string desiredName = msg.RawMessageArray[3];
if (currentName == ActualBotNick && desiredName == desiredBotNick) {
Logger.Log(LogType.IrcStatus,
"Error: Desired nick \"{0}\" is still in use. Will retry shortly.",
desiredBotNick);
break;
}
// Possibility 2: We don't have any nick yet, the one we wanted is in use
string oldActualBotNick = ActualBotNick;
if (ActualBotNick.Length < maxNickLength) {
// append '_' to the end of desired nick, if we can
ActualBotNick += "_";
} else {
// if resulting nick is too long, add a number to the end instead
nickTry++;
if (desiredBotNick.Length + nickTry / 10 + 1 > maxNickLength) {
ActualBotNick = desiredBotNick.Substring(0, maxNickLength - nickTry / 10 - 1) + nickTry;
} else {
ActualBotNick = desiredBotNick + nickTry;
}
}
Logger.Log(LogType.IrcStatus, "Error: Nickname \"{0}\" is already in use. Trying \"{1}\"",
oldActualBotNick, ActualBotNick);
Send(IRCCommands.Nick(ActualBotNick));
Send(IRCCommands.Userhost(ActualBotNick));
break;
case IRCReplyCode.ErrorBannedFromChannel:
case IRCReplyCode.ErrorNoSuchChannel:
Logger.Log(LogType.IrcStatus, "Error: {0} ({1})",
msg.ReplyCode, msg.Channel);
die = true;
break;
case IRCReplyCode.ErrorBadChannelKey:
Logger.Log(LogType.IrcStatus, "Error: Channel password required for {0}. " +
"ProCraft does not currently support password-protected channels.",
msg.Channel);
die = true;
break;
default:
Logger.Log(LogType.IrcStatus, "Error ({0}): {1}",
msg.ReplyCode, msg.RawMessage);
break;
}
if (die) {
Logger.Log(LogType.IrcStatus, "Error: Disconnecting.");
reconnect = false;
DisconnectThread(null);
}
}
void HandleIrcQueryMessage(IRCMessage msg) {
// TODO: PMs
if (acceptPMs && Player.Console.Info.ReadIRC) {
Server.Players.Where(p => p.IsStaff && p.Info.ReadIRC).Message("&I{0} -> {1}&f: {2}", msg.Nick, botNick, msg.Message);
}
Logger.Log(LogType.IrcStatus, "QueryMessage: {0}", msg.RawMessage);
}
void HandleIrcNames(IRCMessage msg) {
Logger.Log(LogType.IrcStatus, "Name: {0}", msg.Message);
List<string> chanUsers;
if (!Users.TryGetValue(msg.Channel, out chanUsers)) {
chanUsers = new List<string>();
Users[msg.Channel] = chanUsers;
} else {
chanUsers.Clear();
}
foreach (string u in msg.Message.Split()) {
chanUsers.Add(u);
}
}
void HandleIrcKill(IRCMessage msg) {
Logger.Log(LogType.IrcStatus,
"Bot was killed from {0} by {1} ({2}), reconnecting.",
hostName, msg.Nick, msg.Message);
reconnect = true;
isConnected = false;
}
void HandleIrcUnknown(IRCMessage msg) {
if (msg.ReplyCode == IRCReplyCode.UserHost) {
Match match = UserHostRegex.Match(msg.Message);
if (match.Success) {
userHostLength = match.Groups[1].Length;
}
}
}
void AuthWithNickServ()
{
if (ConfigKey.IRCRegisteredNick.Enabled())
{
Send(IRCCommands.Privmsg(ConfigKey.IRCNickServ.GetString(),
ConfigKey.IRCNickServMessage.GetString()));
}
}
public void DisconnectThread([CanBeNull] string quitMsg)
{
if (isConnected && quitMsg != null)
{
ClearLocalQueue();
Send(IRCCommands.Quit(quitMsg));
}
else
{
isConnected = false;
}
IsReady = false;
AssignBotForInputParsing();
if (thread != null && thread.IsAlive)
{
thread.Join(1000);
if (thread.IsAlive)
{
thread.Abort();
}
}
try
{
if (reader != null) reader.Close();
}
catch (ObjectDisposedException) { }
try
{
if (writer != null) writer.Close();
}
catch (ObjectDisposedException) { }
try
{
if (client != null) client.Close();
}
catch (ObjectDisposedException) { }
}
void ClearLocalQueue()
{
string ignored;
while (localQueue.TryDequeue(out ignored)) { }
}
#region IDisposable members
public void Dispose()
{
try
{
if (reader != null) reader.Dispose();
}
catch (ObjectDisposedException) { }
try
{
if (reader != null) writer.Dispose();
}
catch (ObjectDisposedException) { }
try
{
if (client != null && client.Connected)
{
client.Close();
}
}
catch (ObjectDisposedException) { }
}
#endregion
}
/// <summary> Read/write timeout for IRC connections. Default is 15s. </summary>
public static TimeSpan Timeout { get; set; }
/// <summary> Delay between reconnect attempts,
/// in case bot gets kicked or loses connection to IRC network. Default is 15s. </summary>
public static TimeSpan ReconnectDelay { get; set; }
/// <summary> Minimum delay between sending messages to IRC.
/// Set by Config.ApplyConfig, based on value of IRCDelay config key. </summary>
public static TimeSpan SendDelay { get; internal set; }
/// <summary> Minimum delay between retrying for desired nick. </summary>
public static TimeSpan NickRetryDelay { get; internal set; }
static IRC()
{
Timeout = new TimeSpan(0, 0, 15);
ReconnectDelay = new TimeSpan(0, 0, 15);
NickRetryDelay = new TimeSpan(0, 0, 30);
}
static IrcThread[] threads;
static string hostName;
static int port;
static string[] channelNames;
static string botNick;
static readonly ConcurrentQueue<string> OutputQueue = new ConcurrentQueue<string>();
static void AssignBotForInputParsing()
{
bool needReassignment = false;
for (int i = 0; i < threads.Length; i++)
{
if (threads[i].ResponsibleForInputParsing && !threads[i].IsReady)
{
threads[i].ResponsibleForInputParsing = false;
needReassignment = true;
}
}
if (needReassignment)
{
for (int i = 0; i < threads.Length; i++)
{
if (threads[i].IsReady)
{
threads[i].ResponsibleForInputParsing = true;
Logger.Log(LogType.IrcStatus,
"Bot \"{0}\" is now responsible for parsing input.",
threads[i].ActualBotNick);
return;
}
}
Logger.Log(LogType.IrcStatus, "All IRC bots have disconnected.");
}
}
// includes IRC color codes and non-printable ASCII
public static readonly Regex NonPrintableChars = new Regex( "\x03\\d{1,2}(,\\d{1,2})?|[\x00-\x1F\x7E-\xFF]", RegexOptions.Compiled );
public static void Init()
{
if (!ConfigKey.IRCBotEnabled.Enabled()) return;
hostName = ConfigKey.IRCBotNetwork.GetString();
port = ConfigKey.IRCBotPort.GetInt();
channelNames = ConfigKey.IRCBotChannels.GetString().Split(',');
for (int i = 0; i < channelNames.Length; i++)
{
channelNames[i] = channelNames[i].Trim();
if (!channelNames[i].StartsWith("#"))
{
channelNames[i] = '#' + channelNames[i].Trim();
}
}
botNick = ConfigKey.IRCBotNick.GetString();
}
public static bool Start()
{
if (!IrcNickRegex.IsMatch(botNick))
{
Logger.Log(LogType.Error, "IRC: Unacceptable bot nick.");
return false;
}
int threadCount = ConfigKey.IRCThreads.GetInt();
if (threadCount == 1)
{
IrcThread thread = new IrcThread(botNick);
if (thread.Start(true))
{
threads = new[] {
thread
};
}
}
else
{
List<IrcThread> threadTemp = new List<IrcThread>();
for (int i = 0; i < threadCount; i++)
{
IrcThread temp = new IrcThread(botNick + (i + 1));
if (temp.Start((threadTemp.Count == 0)))
{
threadTemp.Add(temp);
}
}
threads = threadTemp.ToArray();
}
if (threads.Length > 0)
{
HookUpHandlers();
return true;
}
else
{
Logger.Log(LogType.IrcStatus, "IRC: Set IRCThreads to 1.");
return false;
}
}
public static void SendChannelMessage([NotNull] string line, [NotNull] params object[] args)
{
if (line == null) throw new ArgumentNullException("line");
if (args == null) throw new ArgumentNullException("args");
if (args.Length > 0)
{
int count = 0;
foreach (object obj in args) {
if (obj is int) {
args[count] = string.Format("{0:#,##0}", obj);
}
count++;
}
line = String.Format(line, args);
}
if (channelNames == null) return; // in case IRC bot is disabled.
line = ProcessMessageToIRC(line);
for (int i = 0; i < channelNames.Length; i++)
{
SendRawMessage(IRCCommands.Privmsg(channelNames[i], ""), line, "");
}
}
public static void SendAction([NotNull] string line)
{
if (line == null) throw new ArgumentNullException("line");
if (channelNames == null) return; // in case IRC bot is disabled.
line = ProcessMessageToIRC(line);
for (int i = 0; i < channelNames.Length; i++)
{
SendRawMessage(IRCCommands.Privmsg(channelNames[i], "\u0001ACTION "), line, "\u0001");
}
}
static string[] split = new string[] { "&N", "\n" };
public static void SendRawMessage(string prefix, [NotNull] string line, string suffix)
{
if (line == null) throw new ArgumentNullException("line");
// handle newlines
if (line.Contains("&N") || line.Contains("\n"))
{
string[] segments = line.Split(split, StringSplitOptions.RemoveEmptyEntries);
SendRawMessage(prefix, segments[0], suffix);
for (int i = 1; i < segments.Length; i++)
{
SendRawMessage(prefix, "> " + segments[i], suffix);
}
return;
}
// handle line wrapping
int maxContentLength = MaxMessageSize - prefix.Length - suffix.Length - userHostLength - 3 - maxNickLength;
if (line.Length > maxContentLength)
{
SendRawMessage(prefix, line.Substring(0, maxContentLength), suffix);
int offset = maxContentLength;
while (offset < line.Length)
{
int length = Math.Min(line.Length - offset, maxContentLength - 2);
SendRawMessage(prefix, "> " + line.Substring(offset, length), suffix);
offset += length;
}
return;
}
// actually send
OutputQueue.Enqueue(prefix + line + suffix);
}
static bool IsBotNick([NotNull] string str)
{
if (str == null) throw new ArgumentNullException("str");
return threads.Any(t => t.ActualBotNick == str);
}
internal static void Disconnect([CanBeNull] string quitMsg)
{
if (threads != null && threads.Length > 0)
{
foreach (IrcThread thread in threads)
{
thread.DisconnectThread(quitMsg);
}
}
}
// includes IRC color codes and non-printable ASCII
static readonly Regex
IRCColorsAndNonStandardChars = new Regex("\x03\\d{1,2}(,\\d{1,2})?|[^\x0A\x20-\x7E]"),
IRCColorsAndNonStandardCharsExceptEmotes =
new Regex("\x03\\d{1,2}(,\\d{1,2})?|[^\x0A\x20-\x7F☺☻♥♦♣♠•◘○◙♂♀♪♫☼►◄↕‼¶§▬↨↑↓→←∟↔▲▼⌂]");
[NotNull]
static string ProcessMessageFromIRC([NotNull] string message)
{
if (message == null) throw new ArgumentNullException("message");
bool useColor = ConfigKey.IRCShowColorsFromIRC.Enabled();
bool useEmotes = ConfigKey.IRCShowEmotesFromIRC.Enabled();
if (useColor && useEmotes)
{
message = Color.IrcToMinecraftColors(message);
message = Chat.ReplaceUnicodeWithEmotes(message);
message = Chat.ReplaceEmoteKeywords(message);
message = Chat.ReplacePercentColorCodes(message, false);
message = Chat.StripNewlines(message);
}
else if (useColor)
{
message = Color.IrcToMinecraftColors(message);
message = Chat.StripEmotes(message);
message = Chat.ReplacePercentColorCodes(message, false);
message = Chat.StripNewlines(message);
}
else if (useEmotes)
{
message = IRCColorsAndNonStandardCharsExceptEmotes.Replace(message, "");
message = Chat.ReplaceUnicodeWithEmotes(message);
message = Chat.ReplaceEmoteKeywords(message);
// strips minecraft colors and newlines
message = Color.StripColors(message, false);
}
else
{
// strips emotes
message = IRCColorsAndNonStandardChars.Replace(message, "");
// strips minecraft colors and newlines
message = Color.StripColors(message, false);
}
message = Chat.UnescapeBackslashes(message);
return message.Trim();
}
[NotNull]
static string ProcessMessageToIRC([NotNull] string message)
{
if (message == null) throw new ArgumentNullException("message");
bool useColor = ConfigKey.IRCShowColorsFromServer.Enabled();
bool useEmotes = ConfigKey.IRCShowEmotesFromServer.Enabled();
if (useEmotes)
message = Chat.ReplaceEmotesWithUnicode(message);
else
message = Chat.StripEmotes(message);
message = Chat.ReplaceNewlines(message);
if (useColor) {
message = message.Replace("&T", ResetReplacement);
message = Color.MinecraftToIrcColors(message);
message = message.Replace(Bold, BoldReplacement);
message = message.Replace(Reset, ResetReplacement);
}
else
{
message = message.Replace(Bold, "");
message = message.Replace(Reset, "");
message = Color.StripColors(message, false);
}
return message.Trim();
}
#region Server Event Handlers
static void HookUpHandlers()
{
Chat.Sent += ChatSentHandler;
Player.JoinedWorld += PlayerJoinedWorldHandler;
Player.Ready += PlayerReadyHandler;
Player.HideChanged += OnPlayerHideChanged;
Player.Disconnected += PlayerDisconnectedHandler;
Player.Kicked += PlayerKickedHandler;
PlayerInfo.BanChanged += PlayerInfoBanChangedHandler;
PlayerInfo.RankChanged += PlayerInfoRankChangedHandler;
}
static void PlayerJoinedWorldHandler(object sender, PlayerJoinedWorldEventArgs e) {
if (e.OldWorld != e.NewWorld) {
e.Player.PublicAuxStateObjects["IRC_World"] = e.NewWorld.Name;
}
}