UIFacesから顔画像をダウンロードする

gistfile1.rb

require "httparty"
require "nokogiri"

response = HTTParty::get('http://uifaces.com/authorized')
doc = Nokogiri::HTML.parse(response.body, nil, nil)
faces = doc.xpath('//*[@id="app"]/div[2]/div/div/div/a')
names = []
faces.each do |face| 
  name = face.attributes['title'].value.sub('@', '')
  url = face.attributes['data-source'].value
  sleep(1)
  File.open("#{name}.jpg", "w") do |file|
    file.write HTTParty.get(url).body
  end
  names << name
end
p names