Parallels/vagrant-parallels

module HashiCorp
  module Rack
    # This redirects to the latest version of the docs.
    class RedirectToDocs
      def initialize(app)
        @app = app
      end

      def call(env)
        if env['PATH_INFO'] =~ /^\/$/
          headers = {
            'Content-Type'  => 'text/html',
            'Location'      => '/docs/',
            'Surrogate-Key' => 'page'
          }
          message = 'Redirecting to new URL...'

          return [301, headers, [message]]
        end

        @app.call(env)
      end
    end
  end
end