Ruby script for AuthorizedKeysCommand that grabs public keys off github with the login

authorized_keys_command.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'net/http'
require 'uri'
require 'json'
require 'pry'

class User
  attr_accessor :login

  def initialize(login)
    self.login = login
  end

  def keys
    GitHubClient.get("users/#{self.login}/keys")
  end
end

class GitHubClient
  class << self
    def host
      'api.github.com'
    end

    def uri(path = '')
      URI.parse("https://#{host}/#{path}")
    end

    def client
      client = Net::HTTP.new(uri.host, uri.port)
      client.use_ssl = true
      client.verify_mode = OpenSSL::SSL::VERIFY_NONE
      client
    end

    def request(path)
      puts uri(path)
      Net::HTTP::Get.new(uri(path).request_uri)
    end

    def response(request)
      parse(client.request(request).body)
    end

    def get(path)
      response(request(path))
    end

    def parse(body)
      JSON.parse(body)
    end
  end
end

class AuthorizedKeys
  attr_accessor :keys

  def self.for_login(login)
    keys = User.new(login).keys
    new(keys)
  end

  def initialize(keys)
    self.keys = keys
  end

  def export
    keys.map{ |key| export_key(key) }.join("\n")
  end

  private

  def export_key(key)
    key['key']
  end
end

puts AuthorizedKeys.for_login(ARGV.first).export
exit 0