301e6636a5dcbd65c3d51f120f6bfc18b66b383b
3 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
MechaCat02
|
1d9fb11c7b |
fix: close the nine ways an unattended event loses photos or dies
Every one of these was found in the pre-event audit, verified against source, and
survives to production on the current main. Grouped by what actually goes wrong.
PHOTOS DISAPPEAR
* compression.rs no longer soft-deletes on a failed derivative. The guest got a
201, watched the card appear, then watched it vanish — the row left v_feed,
find_visible_media and BOTH keepsakes, while its bytes sat on disk for 14 days
waiting for a cleanup nothing announced. No screen anywhere lists compression
failures, so recovery meant hand-written SQL that also had to re-add the
refunded quota. Now it does exactly what the ENOSPC arm beside it already did
and documented as correct: keep the row, serve the original, retry on the next
boot (bounded by derivative_attempts). `upload-deleted` is no longer emitted;
`upload-processed` is, so the card re-renders instead of sitting on a
placeholder.
* A 413 is now a reversible lock, so the blob survives. The quota moves — free
disk falls, uploader count rises — so a guest goes over it having done nothing,
and treating that as permanent meant a 400 MB video was pushed across cellular
in full and THEN deleted from IndexedDB. Gone on both sides, and unrecoverable
for an in-app camera capture that exists nowhere else.
* quota_limit_bytes gained a floor and a stable divisor. The ceiling used to
decrease monotonically all evening; it now settles at max(uploaders,
estimated_guest_count) — a config key that was seeded, validated in the admin
whitelist, and read by no code at all. The floor is clamped to what the disk
can actually back, so a full volume still yields zero rather than handing out
an allowance it cannot honour.
* Because that floor gives up the aggregate guarantee the formula used to imply,
uploads now check a hard 10 GB reserve first, independent of every quota
toggle. postgres_data, media_data and exports_data share one filesystem: the
end state was not a degraded feature, it was Postgres unable to write WAL.
THE ARCHIVE DISAPPEARS
* prune_superseded_archives runs only after the new generation lands. It ran
before the preflight, reasoning the old archive was already unreachable — true
of reachability, false of recoverability. An epoch is a value that can be
rolled back; deleted bytes cannot. Any failed rebuild left the event with NO
keepsake at all.
* The export preflight reserves the same 10 GB. `free < needed` authorised an
export sized at exactly free, which ran for half an hour and landed the box at
zero with the keepsake still unfinished.
THE APP DIES
* The feed reconcile re-reads the id set after its awaits instead of reusing one
captured up to three round-trips earlier. The new-upload SSE handler prepends
during exactly that window, so the row was both already present and absent from
the stale set — prepended twice, and a duplicate key in a keyed {#each} throws
in production, not just dev. The SSE handler and loadMore now dedupe too.
* Added routes/+error.svelte. Without it any uncaught error fell through to
SvelteKit's unstyled English 500 with no reload control — inside a chromeless
standalone PWA with no URL bar, for the rest of the evening.
THE OPERATOR IS LOCKED OUT
* admin_login verifies the password BEFORE charging the rate bucket, and a
correct password is never throttled. The old order made this a denial of
service against its own operator: every guest shares one NAT IP, the check ran
first, so five requests a minute from any phone in the room kept the bucket
full — and the escape hatch needed the admin session being blocked. A generous
separate ceiling still bounds bcrypt CPU.
THE PROJECTOR DIES
* The preload budget is now strictly inside the dwell. At the 3s option the 4s
budget could never land a commit on a slow uplink, so the wall froze on one
photo while the queue drained silently behind it.
* The wake lock retries every 30s while visible, and the page says so on screen
when the browser has no wake lock API. visibilitychange was the only retry
trigger and a kiosk never changes visibility, so one refusal — iOS in Low Power
Mode, say — was permanent.
* Caddy: /api/v1/upload/*/display joins the cacheable carve-out. The backend set
max-age=300 on it and the blanket no-store silently replaced it, so a projector
re-fetched a full-size JPEG per slide, ~2-4 GB over an evening on the uplink
the guests are uploading over.
Also removes Upload::soft_delete, now unreferenced and an unscoped footgun next
to soft_delete_in_event.
Verified: 146/146 backend tests against a live Postgres, clippy clean, 51/51
vitest, svelte-check 0 errors, eslint clean, vite build, caddy validate, compose
YAML parse.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
|
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|
Fabian Hamm (Privat)
|
51e55b1ace |
fix(feed): survive a bad network, and let the lightbox actually browse
Four things a guest on congested venue wifi would have hit, and one they would have
hit immediately.
A FAILED FEED LOAD CLAIMED THE GALLERY WAS EMPTY. `loadFeed` caught, toasted for five
seconds and left `uploads` empty, so the page fell through to "Noch keine Fotos. Tippe
auf den Kamera-Button unten!" — the most likely first impression at the party, and a
lie. There is now a distinct error state with "Erneut laden". Refreshes suppressed the
toast entirely, so pull-to-refresh and the "Neue Beiträge" pill failed in total
silence; they now report, and the pill survives its own failure instead of clearing
before the request.
THE FILTER-EMPTY STATE WAS DEAD CODE. With filtering server-side `displayUploads` is a
plain alias of `uploads`, so the grid's "Keine Treffer für die gewählten Filter." plus
its reset button sat behind an identical earlier branch and could never render — a
guest tapping a chip with no matches was told to go take a photo.
SSE COULD FREEZE THE FEED FOR THE WHOLE EVENING. Nothing in the feed ever refetched on
a timer; every update path was triggered exclusively by a stream event. Behind a proxy
that buffers `text/event-stream` `onopen` never fires, so the guest saw only the photos
that were on screen when they arrived; and a socket left half-open by an AP roam is
worse, because `connectSse` early-returns on a non-null EventSource and nothing ever
reconnects. A pure silence timer is not implementable — the backend sends keep-alives
as SSE comments, which the EventSource parser discards without dispatching — so
liveness is established on evidence instead: a jittered 60-120s `/feed/delta` backstop
that reconnects when a poll returns content the stream never delivered. The ticket
round-trip also seeds the delta cursor before the EventSource is created, so the
backstop has a `since` even if `onopen` never fires.
THE PILL COLLAPSED A DEEPLY-SCROLLED FEED to 20 items and dumped the guest at an
arbitrary scroll position — the exact yank the pill exists to avoid. It merges now.
The refresh debounce was 800ms + jitter, which during a burst is roughly one feed query
per client every two seconds; at 100 guests that approaches the 60/min per-user limit,
and the resulting 429s were swallowed by a bare `catch {}`, so the feed would simply
stop updating with no signal. Now 8s + jitter, coalescing, and skipped entirely while
the page is hidden.
Not one `<img>` in the app had an `onerror`. `pickMediaUrl` falls back to the original
whenever preview and thumbnail are null — i.e. for everything still compressing, which
during a burst is the top of the feed — so a 404 there rendered an empty grey box with
`alt=""`, not even a message. Each now retries once, then shows the placeholder.
The lightbox had no swipe, no prev/next and no arrow keys, so browsing 300 photos meant
closing and reopening the modal for every one — while FEATURES.md and USER_JOURNEYS
both claimed swipe shipped. It now has chevrons (44px, German aria-labels, hidden at
the ends), arrow keys, and horizontal swipe, with focus handed to the surviving control
so a disappearing chevron can't drop focus to `<body>`. Comment deletion was a ~14px
`✕` four pixels from the text that deleted permanently on one tap, while deleting a
POST two components away goes through a ConfirmSheet; it now matches.
`feed-filter.ts` and its test are deleted — with the server filtering, they were dead.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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MechaCat02
|
57a907eca5 |
feat(theme+comments): runtime colour theme and COMMENTS_ENABLED switch
Colour theme is configurable at runtime from two seed colours (brand + accent); neutrals stay fixed for contrast safety. Tailwind v4 var()-based tokens let a :root:root override recolour everything with no rebuild; the 50->950 ramps are derived via a color-mix ladder. Config lives in the DB config table (admin UI: Config > Farbschema, presets + custom pickers + live preview), served on the public /event endpoint with env defaults (THEME_PRESET/PRIMARY/ACCENT), propagated live via event-updated SSE, and cached in localStorage for a no-flash boot. The keepsake export mirrors the same ladder in Rust so offline archives match the event theme. COMMENTS_ENABLED (env, default true) is a boot-time kill-switch: the backend rejects new comments with 403 and the frontend hides the comment button (feed card) and panel/composer (lightbox). Existing comments stay in the DB, hidden, and return when re-enabled. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |