Jabber BOT Demo using Node.js

JabberDemoBot.js

'use strict'

const Client = require('node-xmpp-client');
const ltx = require('node-xmpp-core').ltx;
const bunyan = require('bunyan');
const log = bunyan.createLogger({ name: 'jabber-bot' });

const weather = require('./weather');
const tube = require('./tube');

const jabberpassword = process.env.jabberPassword || "";
if (jabberpassword == "") {
	log.error('Password not set');
	process.exit(0);
}

let client = new Client({
	host: 'cup.yourdomain.com',
	jid: 'bot@yourdomain.com',
	password: jabberpassword
})

client.on('online', function (data) {
	log.info(`Online.  Connected as ${data.jid.user}@${data.jid.domain}/${data.jid.resource}`)
	log.info('Sending Presence');
	client.send('<presence/>'); // Important to show as online and respond to chats.
})

client.on('offline', function () {
	log.info("Client is Offline");
})


client.on('stanza', function (stanza) {
	log.info(`Incoming Stanza: ${stanza.attrs.type}`);

	// *** Look at ltx/lib/Element for a list of stanza functions
	if (stanza.is('message') && stanza.attrs.type === 'chat' && !stanza.getChild('composing')) {
		let msg = stanza.getChildText('body');
		let reply = new Client.Stanza('message', {
			to: stanza.attrs.from,
			from: stanza.attrs.to,
			type: 'chat'
		})

		if (msg) {
			switch (msg.toLowerCase()) {
				case 'sup':
				case 'hello':
				case 'hi':
				case 'good afternoon':
					reply.c('body').t('Hi there, how are you this fine day?');
					client.send(reply);
					break;
				case 'weather':
					weather.run("London").then(result => {
						reply.c('body').t(result);
						client.send(reply);
					})
					break;
				case 'tube':
					tube.run().then(result => {
						reply.c('body').t(result);
						client.send(reply);
					})
					break;
				case 'away':
					client.send(new ltx.Element('presence', {})
						.c('show').t('away').up() // away
						.c('status').t('Presence Status Updated Programmatically')
					)
					break;
				case 'dnd':
					client.send(new ltx.Element('presence', {})
						.c('show').t('dnd').up() // dnd
						.c('status').t('Really Busy')
					)
					break;
				case 'reset':
					client.send(new ltx.Element('presence', {})
						.c('show').t('chat').up() // Available
						.c('status').t('Available')
					)
					break;
				default:
					break;
			}
		}
	}

})

client.on('connect', function () {
	log.info("Client Connected");
})

client.on('reconnect', function () {
	log.info("Client Reconnect");
})

client.on('disconnect', function (e) {
	log.info(`Client is disconnected ${client.connection.reconnect} ${e}`);
})

client.on('error', function (e) {
	log.error(e)
	process.exit(1);
});

process.on('exit', function () {
	client.end();
})