469 lines
15 KiB
JavaScript
469 lines
15 KiB
JavaScript
/* jslint node: true */
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'use strict';
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// ENiGMA½
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const Log = require('./logger.js').log;
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const { MenuModule } = require('./menu_module.js');
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const {
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pipeToAnsi,
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stripMciColorCodes
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} = require('./color_codes.js');
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const stringFormat = require('./string_format.js');
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const StringUtil = require('./string_util.js');
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// deps
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const _ = require('lodash');
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const async = require('async');
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const net = require('net');
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const moment = require('moment');
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exports.moduleInfo = {
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name : 'MRC Client',
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desc : 'Connects to an MRC chat server',
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author : 'RiPuk',
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packageName : 'codes.l33t.enigma.mrc.client',
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// Whilst this module was put together by me (RiPuk), it should be noted that a lot of the ideas (and even some code snippets) were
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// borrowed from the Synchronet implementation of MRC by echicken. So...thanks, your code was very helpful in putting this together.
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// Source at http://cvs.synchro.net/cgi-bin/viewcvs.cgi/xtrn/mrc/.
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};
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const FormIds = {
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mrcChat : 0,
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};
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const MciViewIds = {
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mrcChat : {
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chatLog : 1,
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inputArea : 2,
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roomName : 3,
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roomTopic : 4,
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mrcUsers : 5,
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mrcBbses : 6,
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customRangeStart : 10, // 10+ = customs
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}
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};
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// TODO: this is a bit shit, could maybe do it with an ansi instead
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const helpText = `
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|15General Chat|08:
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|03/|11rooms |08& |03/|11join |03<room> |08- |07List all or join a room
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|03/|11pm |03<user> <message> |08- |07Send a private message
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----
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|03/|11whoon |08- |07Who's on what BBS
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|03/|11chatters |08- |07Who's in what room
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|03/|11clear |08- |07Clear back buffer
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|03/|11topic |03<message> |08- |07Set the room topic
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|03/|11bbses |08& |03/|11info <id> |08- |07Info about BBS's connected
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|03/|11meetups |08- |07Info about MRC MeetUps
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---
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|03/|11l33t |03<your message> |08- |07l337 5p34k
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|03/|11kewl |03<your message> |08- |07BBS KeWL SPeaK
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|03/|11rainbow |03<your message> |08- |07Crazy rainbow text
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`;
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exports.getModule = class mrcModule extends MenuModule {
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constructor(options) {
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super(options);
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this.log = Log.child( { module : 'MRC' } );
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this.config = Object.assign({}, _.get(options, 'menuConfig.config'), { extraArgs : options.extraArgs });
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this.config.maxScrollbackLines = this.config.maxScrollbackLines || 500;
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this.state = {
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socket: '',
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alias: this.client.user.username,
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room: '',
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room_topic: '',
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nicks: [],
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last_ping: 0
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};
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this.menuMethods = {
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sendChatMessage : (formData, extraArgs, cb) => {
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const inputAreaView = this.viewControllers.mrcChat.getView(MciViewIds.mrcChat.inputArea);
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const inputData = inputAreaView.getData();
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this.processOutgoingMessage(inputData);
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inputAreaView.clearText();
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return cb(null);
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},
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movementKeyPressed : (formData, extraArgs, cb) => {
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const bodyView = this.viewControllers.mrcChat.getView(MciViewIds.mrcChat.chatLog);
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switch(formData.key.name) {
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case 'down arrow' : bodyView.scrollDocumentUp(); break;
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case 'up arrow' : bodyView.scrollDocumentDown(); break;
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case 'page up' : bodyView.keyPressPageUp(); break;
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case 'page down' : bodyView.keyPressPageDown(); break;
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}
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this.viewControllers.mrcChat.switchFocus(MciViewIds.mrcChat.inputArea);
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return cb(null);
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},
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quit : (formData, extraArgs, cb) => {
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return this.prevMenu(cb);
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}
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};
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}
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mciReady(mciData, cb) {
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super.mciReady(mciData, err => {
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if(err) {
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return cb(err);
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}
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async.series(
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[
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(callback) => {
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return this.prepViewController('mrcChat', FormIds.mrcChat, mciData.menu, callback);
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},
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(callback) => {
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return this.validateMCIByViewIds('mrcChat', [ MciViewIds.mrcChat.chatLog, MciViewIds.mrcChat.inputArea ], callback);
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},
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(callback) => {
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const connectOpts = {
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port : 5000,
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host : 'localhost',
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};
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// connect to multiplexer
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this.state.socket = net.createConnection(connectOpts, () => {
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this.client.once('end', () => {
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this.quitServer();
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});
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// handshake with multiplexer
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this.state.socket.write(`--DUDE-ITS--|${this.state.alias}\n`);
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this.clientConnect();
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// send register to central MRC and get stats every 60s
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this.heartbeat = setInterval( () => {
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this.sendHeartbeat();
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this.sendServerMessage('STATS');
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}, 60000);
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});
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// when we get data, process it
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this.state.socket.on('data', data => {
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data = data.toString();
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this.processReceivedMessage(data);
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});
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return(callback);
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}
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],
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err => {
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return cb(err);
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}
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);
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});
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}
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leave() {
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this.quitServer();
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return super.leave();
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}
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quitServer() {
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clearInterval(this.heartbeat);
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if(this.state.socket) {
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this.sendServerMessage('LOGOFF');
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this.state.socket.destroy();
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delete this.state.socket;
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}
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}
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/**
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* Adds a message to the chat log on screen
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*/
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addMessageToChatLog(message) {
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if(!Array.isArray(message)) {
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message = [ message ];
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}
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message.forEach(msg => {
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const chatLogView = this.viewControllers.mrcChat.getView(MciViewIds.mrcChat.chatLog);
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const messageLength = stripMciColorCodes(msg).length;
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const chatWidth = chatLogView.dimens.width;
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let padAmount = 0;
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let spaces = 2;
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if (messageLength > chatWidth) {
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padAmount = chatWidth - (messageLength % chatWidth) - spaces;
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} else {
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padAmount = chatWidth - messageLength - spaces;
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}
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if (padAmount < 0) padAmount = 0;
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const padding = ' |00' + ' '.repeat(padAmount);
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chatLogView.addText(pipeToAnsi(msg + padding));
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if(chatLogView.getLineCount() > this.config.maxScrollbackLines) {
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chatLogView.deleteLine(0);
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}
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});
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}
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/**
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* Processes data received from the MRC multiplexer
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*/
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processReceivedMessage(blob) {
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blob.split('\n').forEach( message => {
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try {
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message = JSON.parse(message);
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} catch (e) {
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return;
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}
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if (message.from_user == 'SERVER') {
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const params = message.body.split(':');
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switch (params[0]) {
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case 'BANNER':
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this.addMessageToChatLog(params[1].replace(/^\s+/, ''));
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break;
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case 'ROOMTOPIC':
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this.viewControllers.mrcChat.getView(MciViewIds.mrcChat.roomName).setText(`#${params[1]}`);
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this.viewControllers.mrcChat.getView(MciViewIds.mrcChat.roomTopic).setText(pipeToAnsi(params[2]));
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this.state.room = params[1];
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break;
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case 'USERLIST':
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this.state.nicks = params[1].split(',');
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break;
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case 'STATS': {
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const stats = params[1].split(' ');
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this.viewControllers.mrcChat.getView(MciViewIds.mrcChat.mrcUsers).setText(stats[2]);
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this.viewControllers.mrcChat.getView(MciViewIds.mrcChat.mrcBbses).setText(stats[0]);
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this.state.last_ping = stats[1];
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break;
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}
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default:
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this.addMessageToChatLog(message.body);
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break;
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}
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} else {
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if (message.to_room == this.state.room) {
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// if we're here then we want to show it to the user
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const currentTime = moment().format(this.client.currentTheme.helpers.getTimeFormat());
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this.addMessageToChatLog('|08' + currentTime + '|00 ' + message.body + '|00');
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}
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}
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this.viewControllers.mrcChat.switchFocus(MciViewIds.mrcChat.inputArea);
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});
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}
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/**
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* Receives the message input from the user and does something with it based on what it is
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*/
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processOutgoingMessage(message, to_user) {
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if (message.startsWith('/')) {
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this.processSlashCommand(message);
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} else {
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if (message == '') {
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// don't do anything if message is blank, just update stats
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this.sendServerMessage('STATS');
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return;
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}
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// else just format and send
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const textFormatObj = {
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fromUserName : this.state.alias,
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toUserName : to_user,
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message : message
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};
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const messageFormat =
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this.config.messageFormat ||
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'|00|10<|02{fromUserName}|10>|00 |03{message}|00';
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const privateMessageFormat =
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this.config.outgoingPrivateMessageFormat ||
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'|00|10<|02{fromUserName}|10|14->|02{toUserName}>|00 |03{message}|00';
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let formattedMessage = '';
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if (to_user == undefined) {
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// normal message
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formattedMessage = stringFormat(messageFormat, textFormatObj);
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} else {
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// pm
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formattedMessage = stringFormat(privateMessageFormat, textFormatObj);
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}
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try {
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this.sendMessageToMultiplexer(to_user || '', '', this.state.room, formattedMessage);
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} catch(e) {
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this.client.log.warn( { error : e.message }, 'MRC error');
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}
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}
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}
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/**
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* Processes a message that begins with a slash
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*/
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processSlashCommand(message) {
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// get the chat log view in case we need it
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const chatLogView = this.viewControllers.mrcChat.getView(MciViewIds.mrcChat.chatLog);
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const cmd = message.split(' ');
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cmd[0] = cmd[0].substr(1).toLowerCase();
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switch (cmd[0]) {
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case 'pm':
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this.processOutgoingMessage(cmd[2], cmd[1]);
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break;
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case 'rainbow': {
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// this is brutal, but i love it
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const line = message.replace(/^\/rainbow\s/, '').split(' ').reduce(function (a, c) {
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const cc = Math.floor((Math.random() * 31) + 1).toString().padStart(2, '0');
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a += `|${cc}${c}|00 `;
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return a;
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}, '').substr(0, 140).replace(/\\s\|\d*$/, '');
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this.processOutgoingMessage(line);
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break;
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}
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case 'l33t':
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this.processOutgoingMessage(StringUtil.stylizeString(message.substr(6), 'l33t'));
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break;
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case 'kewl': {
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const text_modes = Array('f','v','V','i','M');
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const mode = text_modes[Math.floor(Math.random() * text_modes.length)];
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this.processOutgoingMessage(StringUtil.stylizeString(message.substr(6), mode));
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break;
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}
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case 'whoon':
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this.sendServerMessage('WHOON');
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break;
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case 'motd':
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this.sendServerMessage('MOTD');
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break;
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case 'meetups':
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this.sendServerMessage('MEETUPS');
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break;
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case 'bbses':
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this.sendServerMessage('CONNECTED');
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break;
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case 'topic':
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this.sendServerMessage(`NEWTOPIC:${this.state.room}:${message.substr(7)}`);
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break;
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case 'info':
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this.sendServerMessage(`INFO ${cmd[1]}`);
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break;
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case 'join':
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this.joinRoom(cmd[1]);
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break;
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case 'chatters':
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this.sendServerMessage('CHATTERS');
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break;
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case 'rooms':
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this.sendServerMessage('LIST');
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break;
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case 'clear':
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chatLogView.setText('');
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break;
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case '?':
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this.addMessageToChatLog(helpText.split(/\n/g));
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break;
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default:
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break;
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}
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// just do something to get the cursor back to the right place ¯\_(ツ)_/¯
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this.sendServerMessage('STATS');
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}
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/**
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* Creates a json object, stringifies it and sends it to the MRC multiplexer
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*/
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sendMessageToMultiplexer(to_user, to_site, to_room, body) {
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const message = {
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to_user,
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to_site,
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to_room,
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body,
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from_user : this.state.alias,
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from_room : this.state.room,
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};
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if(this.state.socket) {
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this.state.socket.write(JSON.stringify(message) + '\n');
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}
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}
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/**
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* Sends an MRC 'server' message
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*/
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sendServerMessage(command, to_site) {
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Log.debug({ module: 'mrc', command: command }, 'Sending server command');
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this.sendMessageToMultiplexer('SERVER', to_site || '', this.state.room, command);
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}
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/**
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* Sends a heartbeat to the MRC server
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*/
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sendHeartbeat() {
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this.sendServerMessage('IAMHERE');
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}
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/**
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* Joins a room, unsurprisingly
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*/
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joinRoom(room) {
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// room names are displayed with a # but referred to without. confusing.
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room = room.replace(/^#/, '');
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this.state.room = room;
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this.sendServerMessage(`NEWROOM:${this.state.room}:${room}`);
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this.sendServerMessage('USERLIST');
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}
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/**
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* Things that happen when a local user connects to the MRC multiplexer
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*/
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clientConnect() {
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this.sendServerMessage('MOTD');
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this.joinRoom('lobby');
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this.sendServerMessage('STATS');
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this.sendHeartbeat();
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}
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};
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