simple-bot

https://github.com/designium/simple-bot

simple-bot allows you to create bots and incorporate them into your Rails / Sinatra / Padrino application easily. It is a library that wraps around Mechanize, Nokogiri and many others. It provides simple API so you can start gathering content from other sites or use it as an automated tool for posting information in others websites. Add require 'simple-bot' to your ruby file and then create a new Bot.new 'url'. Use grab_all_links to show all links in an array. See the git page for more information.