fav_machine.rb

require "date"

Earthquake.init do
  _ = config[:fav_machine] ||= {}
  _[:dir] ||= File.expand_path("./fav_machine", config[:dir])
  _[:screen_names] ||= [twitter.info["screen_name"]]
  FileUtils.mkdir_p(_[:dir]) unless Dir.exist? _[:dir]

  output_filter do |item|
    if item["event"] == "favorite" && config[:fav_machine][:screen_names].include?(item["source"]["screen_name"])
      item["target_object"]["entities"]["media"].try(:each) do |media|
        if media["type"] == "photo" && media["display_url"] =~ /\Apic.twitter.com/
          async do
            open(media["media_url"], "rb") do |i|
              dir = config[:fav_machine][:dir]
              dt = DateTime.now.strftime("%Y%m%d-%H%M%S")
              sn = item["source"]["screen_name"]
              bn = File.basename(media["media_url"])
              fn = %Q|#{dir}/#{dt}-#{sn}-#{bn}|
              File.open(fn, "wb") do |f|
               f.write i.read
              end
            end
          end
        end
      end
    end
    true
  end

end