{
   "captive": $(if logged-in == 'yes')false$(else)true$(endif),
   "user-portal-url": "$(link-login-only)",
$(if session-timeout-secs != 0)
   "seconds-remaining": $(session-timeout-secs),
$(endif)
$(if remain-bytes-total)
   "bytes-remaining": $(remain-bytes-total),
$(endif)
   "can-extend-session": true
}