Download Twitter friends and followers by Ruby

gistfile1.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'twitter'
require 'cgi'

username = ''
password = ''

def create_client(username, password)
  httpauth = Twitter::HTTPAuth.new(username, password)
  client = Twitter::Base.new(httpauth)
  return client
end

def get_users(client, type)
  page = 1
  open(type, "w") do |f|
    while true
      case type
      when "friends" then users = client.friends(:page => page)
      when "followers" then users = client.followers(:page => page)
      end
      
      break unless users.size > 0
      
      users.each do |user|
        f.puts(CGI.unescapeHTML("#{user.screen_name},#{user.name},#{user.url},#{(user.description)}"))
      end

      page = page + 1

    end
  end
end

if $0 == __FILE__
  client = create_client(username, password)
  get_users(client, "friends")
  get_users(client, "followers")
end