pastilhasandClaude Opus 5 8cf210eae5 caldav: json door for the web ui
step 3 of docs/nextcloud-replacement.md. collections, events and contacts as
plain json, so the browser never has to parse multistatus xml to draw a list.

this talks dav to radicale over loopback rather than reading its on-disk format.
the storage layout is radicale's private business and changes between versions;
propfind is its supported interface and costs one in-process hop. parsing the
storage directly would be faster and would break silently on upgrade, which is a
bad trade for a calendar.

three bugs found and fixed while verifying, all of which fail quietly rather
than loudly:

  calendar-data and address-data are NOT webdav live properties. rfc 4791 and
  6352 define them as report-only, and radicale correctly returns an empty prop
  for them under propfind — so the first version returned a 207 full of nothing,
  which reads exactly like "your calendar is empty".

  the principal resource matched the calendar test, because `<C:calendar-home-set/>`
  satisfies /calendar\b/. the principal showed up in the list as a calendar
  called "1". the tag has to be required to end.

  the internal fetcher omitted X-Script-Name, so the ui was handed /1/work/ for
  the same collection a phone sees as /dav/1/work/, and nothing downstream could
  have matched them up.

ical.ts is deliberately small: it unfolds lines and pulls out the fields a list
shows. it does NOT expand rrule or resolve vtimezone — radicale owns correctness
there, and rrule is passed through raw so the ui can say "repeats" without
either of us pretending to know when.

verified against the running stack with a real vevent and a real vcard, then the
fixtures were removed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-04 03:30:28 +00:00
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