coffea

event based and extensible nodejs irc client library with multi-network support

For support, report an issue on github, join our IRC channel at or if you prefer that, write an email to our mailing list: [email protected]

If you want to support coffea development, please consider donating (it helps me keeping the project active and alive!):

API

Documentation is available at coffea.caffeinery.org.

Installation

To install coffea, run: npm install --save coffea in your project directory.

Examples

Normal Connection (Single network)

var client = require('coffea')('chat.freenode.net');
/* full config
var client = require('coffea')({
    host: 'chat.freenode.net',
    port: 6667, // default value: 6667
    ssl: false, // set to true if you want to use ssl
    ssl_allow_invalid: false, // set to true if the server has a custom ssl certificate
    prefix: '!', // used to parse commands and emit on('command') events, default: !
    channels: ['#foo', '#bar'], // autojoin channels, default: []
    nick: 'test', // default value: 'coffea' with random number
    username: 'test', // default value: username = nick
    realname: 'test', // default value: realname = nick
    pass: 'sup3rS3cur3P4ssw0rd', // by default no password will be sent
    nickserv: {
        username: 'test',
        password: 'l33tp455w0rD'
    },
    throttling: 250 // default value: 250ms, 1 message every 250ms, disable by setting to false
});
*/

client.on('motd', function (event) {
    client.join(['#foo', '#bar', '#baz'], event.network);
});

client.on('message', function (event) {
    console.log('[' + event.channel.getName() + '] ' + event.user.getNick() + ': ' + event.message);
    //[#foo] nick: message
    event.reply(event.message); // I'm a parrot
});

client.on('command', function (event) {
    if (event.cmd === 'ping') { // respond to `!ping SOMETHING` with `SOMETHING`, or `pong`, if SOMETHING is not specified
        event.reply(event.args.length > 0 ? event.args.join(' ') : 'pong');
    }
});

Multiple networks

var client = require('coffea')(['chat.freenode.net', 'irc.oftc.net']);
/* full config
var client = require('coffea')([
    {
        host: 'chat.freenode.net',
        name: 'freenode', // this is not required but recommended when dealing with multiple networks, by default a numeric id will be assigned
        port: 6667, // default value: 6667
        ssl: false, // set to true if you want to use ssl
        ssl_allow_invalid: false, // set to true if the server has a custom ssl certificate
        prefix: '!', // used to parse commands and emit on('command') events, default: !
        channels: ['#foo', '#bar'], // autojoin channels, default: []
        nick: 'test', // default value: 'coffea' with random number
        username: 'test', // default value: username = nick
        realname: 'test', // default value: realname = nick
        pass: 'sup3rS3cur3P4ssw0rd', // by default no password will be sent
        nickserv: {
            username: 'test',
            password: 'l33tp455w0rD'
        },
        throttling: 250 // default value: 250ms, 1 message every 250ms, disable by setting to false
    },
    {
        host: 'irc.oftc.net',
        name: 'oftc', // this is not required but recommended when dealing with multiple networks, by default a numeric id will be assigned
        port: 6667, // default value: 6667
        ssl: false, // set to true if you want to use ssl
        ssl_allow_invalid: false, // set to true if the server has a custom ssl certificate
        prefix: '!', // used to parse commands and emit on('command') events, default: !
        channels: ['#foo', '#bar'], // autojoin channels, default: []
        nick: 'test', // default value: 'coffea' with random number
        username: 'test', // default value: username = nick
        realname: 'test', // default value: realname = nick
        pass: 'sup3rS3cur3P4ssw0rd', // by default no password will be sent
        nickserv: {
            username: 'test',
            password: 'l33tp455w0rD'
        },
        throttling: 250 // default value: 250ms, 1 message every 250ms, disable by setting to false
    }
]);
*/

// note how we are passing the network here, by default it'll just send to all networks
// by using network you can join specific channels on specific networks
client.on('motd', function (event) {
    client.join(['#foo', '#bar', '#baz'], event.network);
});

client.on('message', function (event) {
    console.log('[' + event.channel.getName() + '] ' + event.user.getNick() + ': ' + event.message);
    //[#foo] nick: message
    event.reply(event.message); // I'm a parrot
});

client.on('command', function (event) {
    if (event.cmd === 'ping') { // respond to `!ping SOMETHING` with `SOMETHING`, or `pong`, if SOMETHING is not specified
        event.reply(event.args.length > 0 ? event.args.join(' ') : 'pong');
    }
});

Using SSL (and other goodies)

var client = require('coffea')({
    host: 'chat.freenode.net',
    ssl: true, // we want to use ssl
    channels: ['#foo', '#bar', '#baz'], // autojoin channels
    // prefix: '!', // used to parse commands and emit on('command') events, default: !
    // ssl_allow_invalid: true, // allow invalid/self-signed/expired SSL certs - default value: false
    // port: 6697, // will default to 6697 on ssl
    // nick: 'test', // default value: 'coffea' with random number
    // username: 'test', // default value: username = nick
    // realname: 'test', // default value: realname = nick
    // pass: 'sup3rS3cur3P4ssw0rd', // by default no password will be sent
    // nickserv: {
    //     username: 'test',
    //     password: 'l33tp455w0rD'
    // },
    // throttling: 250 // default value: 250ms, 1 message every 250ms, disable by setting to false
});

client.on('message', function (event) {
    console.log('[' + event.channel.getName() + '] ' + event.user.getNick() + ': ' + event.message);
    //[#foo] nick: message
    event.reply(event.message); // I'm a parrot
});

client.on('command', function (event) {
    if (event.cmd === 'ping') { // respond to `!ping SOMETHING` with `SOMETHING`, or `pong`, if SOMETHING is not specified
        event.reply(event.args.length > 0 ? event.args.join(' ') : 'pong');
    }
});

Debugging

Make sure to listen to error events to see possible errors/warnings:

client.on('error', function (err, event) {
    console.log(event.name, err.stack);
});

You can also add the err parameter to any event listener (change from function (event) to function (err, event):

client.on('whois', function (err, event) {
    if (err) console.log("WHOIS ERROR:", err.stack);
    console.log("whois:", event);
});

Configuration file

Using a configuration file for your bot is super easy with coffea! First, create config.json and paste your current configuration. (Make sure to change key: 'something' to "key": "something" as we're dealing with JSON now, e.g. host: 'chat.freenode.net' -> "host": "chat.freenode.net")

Then, simply do:

var client = require('coffea')(require('./config.json'));

config.json with full config

{
    "host": "chat.freenode.net",
    "port": 6667,
    "ssl": false,
    "ssl_allow_invalid": false,
    "prefix": "!",
    "channels": ["#foo", "#bar"],
    "nick": "test",
    "username": "test",
    "realname": "test",
    "pass": "sup3rS3cur3P4ssw0rd",
    "nickserv": {
        "username": "test",
        "password": "l33tp455w0rD"
    },
    "throttling": 250
}