check if gravatar exists

gravatar.rb

def gravatar?(email)
    puts "checking #{email}"
    email_hash = Digest::MD5.hexdigest(email.to_s.downcase)
    gravatar_check = "http://gravatar.com/avatar/#{email_hash}.png?d=404"
    uri = URI.parse(gravatar_check)
    http = Net::HTTP.new(uri.host, uri.port)
    request = Net::HTTP::Get.new(uri.request_uri)
    response = http.request(request)
    response.code.to_i != 404
  
end