OK this is a little hacky, but we will get the port from the
@server_uri which has been passed in from the configuration
This is complex because we have the dev environment we might
be running in AND we have the whole virtualhost context too
             
            
                port = splits[2] or '80/'
    port = port.replace(/\//g, '') 
    if port is '80'
      port = ''
    else if port is '443'
      port = ''
      scheme = "https"
    else
      port = ':' + port
    return "#{scheme}://#{req.hostname}#{port}/"
  _resources_to_cache: [
      "isNewSessionForUserWithUri"
      "verifiedUsingToken"
      "verifiedFromIP"
      "joinAttemptFromIP"
    ]
  userNo_sessNo_regex: /nooron\:session\:([0-9A-Za-z]{1,7})\_([0-9A-Za-z]{1,5})/
  reqd: (req, res, next) =>
    if not req.session?
      @log.warning "a clever little monkey just tried #{req.path} without login"
      res.status(403)
      res.send("you must be logged in")
      return
    next()
  make_verification_token: (person_uri, ip) =>
    verification = @noodb.allege(
      person_uri
      @joinAttemptFromIP
      ip
      "nrn:auth_log"
    )
    return verification.i.key()
  was_previously_verifiedUsingToken: (person_uri) =>
    return @noodb.q(person_uri, @verifiedUsingToken).last()?
  get_real_verification_token: (a_maybe_token) =>
    verification_spogi = @noodb.by_id.getOnly(a_maybe_token)
    return verification_spogi? and verification_spogi.i.key() or undefined
  record_verification_of_person_uri_from_ip_using_token: (person_uri, ip, token) =>
    @noodb.allege(
      person_uri
      @verifiedFromIP
      [ip]
      "nrn:auth_log" 
    )
    @noodb.allege(
      person_uri
      @verifiedUsingToken
      "nrn:#{token}"
      "nrn:auth_log"
    )
    return
  is_verification_already_used: (person_uri, ip, token) =>
    return @noodb.q(person_uri, @verifiedUsingToken, "nrn:#{token}").all().length > 0
  get_next_session_token_for: (person_uri) => 
    return @get_next_session_for(person_uri).s.key()
  get_latest_verification_token_for_person_uri: (person_uri) => 
    last_verification_spogi = @noodb.q(person_uri, @joinAttemptFromIP).last()
    return last_verification_spogi? and last_verification_spogi.i.key() or undefined
  get_prev_session_for: (person_uri) =>