Http basic authentication for padrino

http_authentication

module HttpAuthentication
  module Basic
    def authenticate_or_request_with_http_basic(user, pass, realm = 'Application')
      authenticate_with_http_basic(user, pass) || request_http_basic_authentication(realm)
    end

    def authenticate_with_http_basic(user, pass)
      if auth_str = request.env['HTTP_AUTHORIZATION']
        return ActiveSupport::Base64.decode64(auth_str.sub(/^Basic\s+/, '')) == [ user, pass ].join(":")
      end
    end

    def request_http_basic_authentication(realm = 'Application')
      response.headers["WWW-Authenticate"] = %Q(Basic realm="#{realm}")
      response.body = "HTTP Basic: Access denied.\n"
      response.status = 401
      return false
    end
  end
end

# Add inside the Padtino App.
App.controllers :admin do
  layout 'admin'

  before do
    halt(401, 'Not Authorized') unless authenticate_or_request_with_http_basic('admin', 'SuperSecret')
  end
end