Jabbot

Description

Jabbot is a Ruby micro-framework for creating Jabber/MUC bots, heavily inspired by Sinatra and Twibot.

I modified the code of Twibot to fit my needs. The original Twibot code is located at: http://github.com/cjohansen/twibot

A big thank you to Christian Johansen, who wrote the code for Twibot. Jabbot is heavily based on his code.

If your curious if this code is stable enough: I have a bot instance running on my server for years now and it works great :)

Just keep in mind that the code is not the most beautiful, maybe has bugs or rough edges. Feel free to improve it. I use it as is.

Usage

Simple example

configure do |conf|
  conf.login    = "my_account"
  conf.password = "my_account"
  conf.nick     = "mybot"
  conf.channel  = "mychannel"
end

# Receive messages, and post them publicly
message do |message, params|
  post message.text
end

# Respond to query if they come from the right crowd
# query "message" => "user" is just some syntax sugar
# query "message", "user" will work, too
query :from => [:cjno, :irbno] do |message, params|
  post "#{message.user} I agree" => message.user
end

# Log every single line
# (you can use "message :all" too ;)
message do |message, params|
  MyApp.log_message(message)
end

Running the bot

To run the bot, simply do:

ruby bot.rb

Jabbot uses the at_exit hook to start.

Configuration

You have to configure your bot via ruby:

configure do |conf|
  conf.login = "my_account"
  conf.nick = "mybot"
end

If you don't specify login and/or password in any of these ways, Jabbot will fail. The nick is automatically set to "jabbot" unless something different is defined. If you want you can set the XMPP Resource:

configure do |conf|
  conf.resource ="mybot_resource"
end

Default resource is "jabbot".

"Routes"

Like Sinatra, and other web app frameworks, Jabbot supports "routes": patterns to match incoming messages:

message "time :country :city" do |message, params|
  time = MyTimeService.lookup(params[:country], params[:city])
  post "Time is #{time} in #{params[:city]}, #{params[:country]}"
end

You can have several "message" blocks (or "join", "leave", "query" or "subject"). Every matching block will be called.

Jabbot also supports regular expressions as routes:

message /^time ([^\s]*) ([^\s]*)/ do |message, params|
  # params is an array of matches when using regexp routes
  time = MyTimeService.lookup(params[0], params[1])
  post "Time is #{time} in #{params[:city]}, #{params[:country]}"
end

If all you need is exact word matching you can say so:

message :exact => "pattern" do |message, params|
  ...
end

Internally this pattern is translated to /\Apattern\Z/, so you can use regex literals.

Requirements

• xmpp4r. You'll need atleast 0.4. You can get it via rubygems: gem install xmpp4r
• eventmachine. gem install eventmachine

Installation

Jabbot is available via gem:

gem install jabbot

Is it Ruby 1.9?

Absolutely! I run it on 1.9.3 without problems (thanks to the updated xmpp4r).

Is it Ruby 2.x?

It should, test pass. I'm not sure if it will work as expected.

Samples

There are two examples in the [samples][] directory:

• jabbot_example.rb is a working sample without real functionality.
• black.rb is the code I use for my own bot (without the config of course).

Contributors

• Christian Johansen (cjohansen) (author of Twibot) - http://www.cjohansen.no

License

The code is released under the MIT license. See LICENSE.

Contribute

If you'd like to hack on jabbot, start by forking my repo on GitHub:

http://github.com/badboy/jabbot

Then:

1. Clone down your fork
2. Create a thoughtfully named topic branch to contain your change
3. Hack away
4. Add tests and make sure everything still passes by running rake
5. If you are adding new functionality, document it in the README
6. Do not change the version number, I will do that on my end
7. If necessary, rebase your commits into logical chunks, without errors
8. Push the branch up to GitHub
9. Send me (badboy) a pull request for your branch