    # File lib/fog/hp.rb, line 49
        def self.authenticate_v1(options, connection_options = {})
          hp_auth_uri = options[:hp_auth_uri] || "https://region-a.geo-1.objects.hpcloudsvc.com/auth/v1.0/"
          endpoint = URI.parse(hp_auth_uri)
          @scheme = endpoint.scheme || "http"
          @host = endpoint.host || "region-a.geo-1.objects.hpcloudsvc.com"
          @port = endpoint.port.to_s || "80"
          if (endpoint.path)
            @auth_path = endpoint.path.slice(1, endpoint.path.length)  # remove the leading slash
          else
            @auth_path = "auth/v1.0"
          end
          service_url = "#{@scheme}://#{@host}:#{@port}"
          connection = Fog::Connection.new(service_url, false, connection_options)
          @hp_account_id = options[:hp_account_id]
          @hp_secret_key  = options[:hp_secret_key]
          response = connection.request({
            :expects  => [200, 204],
            :headers  => {
              'X-Auth-Key'  => @hp_secret_key,
              'X-Auth-User' => @hp_account_id
            },
            :host     => @host,
            :port     => @port,
            :method   => 'GET',
            :path     => @auth_path
          })
          response.headers.reject do |key, value|
            !['X-Server-Management-Url', 'X-Storage-Url', 'X-CDN-Management-Url', 'X-Auth-Token'].include?(key)
          end

          return {
            :auth_token => response.headers['X-Auth-Token'],
            :endpoint_url => nil,
            :cdn_endpoint_url => response.headers['X-Storage-Url']
          }
        end