A link subscribed on a phone, a tablet and a computer at a five-minute
refresh came close to the 30 fetches an hour a link was allowed, and a
household behind one address shared 120. The per-link bucket is now 120
an hour and the per-address one 600. The token is a random secret checked
by its HMAC, so guessing links is not what these limits stop.
A calendar feed is a standing credential whose contents end up in a
third party's calendar cloud. Putting a record's cycle dates there is
the decision of the person they are about, or of the guardian of
somebody who cannot make it, and no delegate of an adult's record,
MANAGE included.
The subscription routes resolve through requireGuardianAuth instead of
requireRecordAuth("manage", "cycle"): the owner on their own record, or
a MANAGE grant on a record carrying the managed-profile marker. Every
verb follows, the revoke too. The feed re-reads the marker on each fetch
as well as the guardian's grant, so a row minted for somebody else on an
adult's record is a 404 whatever grant stands behind it. The settings
card is offered only where the routes answer.
The routes move from the delegable and MANAGE literals to the guardian
list, and the MANAGE handler inventory is back to 93.
GET /api/cycle/feed/<hlf_token>[.ics] answers any calendar app with the
record's forecast as RFC 5545: all-day events for the next few periods
over their widening windows, optionally past periods, and for a
conception goal that asks for it the next fertile window. Dates and a
title only; discreet titles and the calendar name "HealthLog" by default.
The body is built live on every fetch in the record's own zone and
language, never the request's. ETag is the content hash and a matching
If-None-Match answers 304; DTSTAMP moves only when the content does.
The feed is anonymous, so every gate is read per fetch: the auth-surface
limit before any lookup, the token's shape, the HMAC lookup of a live
feed, a per-token bucket, then the record and carrier not pending
deletion, the operator's external-access switch, cycle tracking for the
record, and for a feed a delegate minted, a live MANAGE grant covering
cycle. Every miss is the same 404.
/api/cycle/feed-subscription (status, turn on, options, turn off) and
its rotate are cookie-only through requireRecordAuth("manage", "cycle"),
with a fresh proof on turning on and rotating and a per-actor mint
bucket. The URL is returned once; the status carries the prefix, the
options, the fetch statistics as a calendar-app family and the
projection state.
The hlf_ family is registered with the path and token redactors, the
secret-shape refusal, the proxy's public paths and edge headers, the
URL-credential, sharing, recent-proof, step-up and module-gate guards,
the error-code catalogue, the activity feed and the destructive-control
registry. The cycle settings tab gains the subscription card and the
predictions panel lists the later cycles.
Marc-André Bombeck