Here is source for a simple bot that is implemented in node-.js using
the node-xmpp library. This bot is designed to interact with the
Nimbits cloud data service.
It basically looks for changes to nimbits data and handles the
resulting xmpp notifications.
The handler is pretty simple -- it just parses the json content and
prints result in the system console. The long-term idea is to get a
clean 2-way xmpp based bot that can send and receive data to a variety
of cloud services, do m2m stuff, be driven using an XMPP based hmi
etc.
forgive the ratty formatting and any javascript newbishness
/**
* Nim Bot - simple node-xmpp bot to handle nimbits IM data
**/
var sys = require('sys');
var xmpp = require('/home/root/node_modules/node-xmpp');
// --- set up credentials
var jid = 'PezBeagle@gmail.com'; // your bot's google id here
var password = 'notmypassword'; // your bot's gmail password here
// --- Create an XMPP client instance
var cl = new xmpp.Client({ jid: jid, password: password });
// --- Create a handler for the xmpp client "online" event
// Basically, this handler, as written, will make
// us show up on google chat as "available"
cl.on('online',
function() {
cl.send(new xmpp.Element('presence', { }).
c('show').t('chat').up().
c('status').t('nimbits node-xmpp i/o bot')
);
}
);
// --- create a handler for the xmpp client "stanza" event
// this handler basically handles all incoming messages
cl.on('stanza',
function(stanza) {
if (stanza.is('message') &&
// Important: never reply to errors!
stanza.attrs.type !== 'error') {
// --- extract sender info
// and <body> ... </body> from message
var sender;
var body;
sender = stanza.attrs.from;
body = '' + stanza.children[0]; // this coerces
stanza.children[0] to string
// --- echo info about sender
sys.puts("from:" + sender);
// --- See if this is from nimbits.com
// If it isn't, we just ignore it
// the address is nimbits1 AT appspot.com/bot
if(sender == 'nimbits1@appspot.com/bot'){
// --- Echo the json "blob"
sys.puts(stanza.children[0].children[0]) ;
// --- eval the json
var nimbitsInfo;
var nimbitsData;
nimbitsInfo = eval('(' + stanza.children[0].children[0] + ')');
nimbitsData = eval('(' + nimbitsInfo.value + ')');
sys.puts(nimbitsInfo.name + '=' + nimbitsData.d);
}
}
}
);
// --- make error handler
cl.on('error',
function(e) {
sys.puts(e);
});