05063694d2b1f5cce6419e60ff20669ceed7bbb5
17 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
MechaCat02
|
05063694d2 |
fix: close eight regressions the audit pass found, five of them mine
Two adversarial reviews over |
||
|
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>
|
||
|
MechaCat02
|
117e67fa80 |
fix(auth,upload): close the admin lockout and four unbounded-input paths
ADMIN LOCKOUT. admin_login looked its user up BY NAME. Migration 007 makes
display_name unique per event case-insensitively and join had no reserved-name
guard, so any guest joining as "admin"/"Admin"/"ADMIN" before the operator's first
login made find(role == Admin) miss, the fallback create("Admin") violate that
index, and `?` return a 500 — permanently, with no in-app recovery. Moderation,
config and gallery release all gone; the fix was hand-editing the database.
The root cause is the lookup key, not the creation. The name was never the
identity. User::find_admin_for_event resolves by role, which makes the whole class
of name collisions irrelevant — including the homoglyph bypasses of the new
reserved-name list, which is now defence in depth rather than the control.
Promoting the squatting row would be the obvious fix and is a serious mistake: it
carries a recovery_pin_hash the guest knows, so it would hand them the admin
dashboard via /recover, permanently, through a path needing no password. A
separate row under a fallback name is worse UX and much better security. Verified
against the real schema — the guest keeps their uploads, PIN and session under a
freed name, and the role lookup then finds exactly one admin.
Second, independent bug in that block: create() followed by a SEPARATE UPDATE ...
SET role = 'admin' manufactures the same poisoned state if anything fails between
them. Collapsed into create_with_role.
UNBOUNDED INPUTS — one root cause, four places: validation ran after the
allocation.
- upload caption/hashtags used Field::text(), which buffers the whole field, on
the one route whose DefaultBodyLimit is 576 MiB — so 576 MiB of heap per
concurrent request in a 1 GiB container, with the length check running
afterwards on a string already built. Now refused mid-read.
- the hashtag CSV was never length-checked at all and was upserted tag by tag
INSIDE the commit transaction, which holds FOR SHARE on the event row — one
request could stall every other upload behind tens of thousands of round trips.
Capped at 30 tags of <=50 chars.
- /recover and /recover/request built rate-limiter keys by format!() from an
unvalidated, unbounded display name, retained up to 24h in a map pruned hourly:
the limiter itself became the memory-exhaustion primitive it exists to prevent.
join validated first; that check is now shared by all three. /recover/request
also had no per-IP ceiling at all — /join got one in 017, /recover in 019, and
019's own comment describes exactly this attack. It returns 204 rather than 400
on a bad name, because a 400 would be a new signal on an endpoint whose contract
is that it cannot enumerate guests.
- the SSE ticket store had no size cap, no per-session cap and no rate limit on
its endpoint, while prune ran hourly against a 30s TTL. Now pruned on issue,
capped, and rate-limited. At capacity it REFUSES rather than evicting a
stranger's ticket — evicting would let one client deny SSE to the venue. Not
one-ticket-per-session either: two tabs open their EventSources concurrently.
PATCH /upload/{id} had no rate limit, no validation, and called
invalidate_and_arm unconditionally — outside both `if let Some` guards. So
PATCH {} bumped export_epoch and armed a fresh pair of full-gallery export workers
every call; REGEN_DEBOUNCE bounds the rate of that, not the total work, so a guest
could keep the keepsake permanently un-downloadable. All three fixed. The
validation also resolves a divergence: upload normalised tags while edit stored
them raw, so #Party via edit and party via upload became two hashtag rows.
PIN LOCKOUT was an ordering bug before a policy one: the account-lock threshold
(3) sat BELOW the per-(IP, name) ceiling (5), so three requests from one IP locked
any guest whose name is on the feed, every 15 minutes, forever. The tier meant to
protect a guest was the cheapest way to attack them. Ceiling drops to 4, threshold
rises to 12, so locking a victim now needs at least three distinct sources.
Brute-force cost is unchanged — 48 attempts/hour means 10k PINs still take ~208h
regardless of IP count — and increment_failed_pin now decays the streak after 15
minutes, since the counter previously only cleared on success and honest typos
accumulated across days. Both invariants are pinned by tests rather than comments.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
|
||
|
fabi
|
b601c062bd |
fix(audit-2): video playback, role identity, keepsake EXIF, recover ceiling, WebKit CI
Second round: the two regressions the first round introduced, the remaining
gaps it left, and the CI change that makes the iOS guarantees actually gate a
change rather than being asserted.
Squashed from 9 commits, original messages preserved below.
──────── docs(deploy): document the update path — `up -d` alone ships nothing
The README only ever described a fresh install. There was no update section
anywhere, and `--build` appeared nowhere in the docs.
That matters because `app` and `frontend` are `build:` services with no published
image tag, and Compose has no source-change detection: if an image by that name
exists it is reused. So the natural `git pull && docker compose up -d` reports
"Container app-1 Running", rebuilds nothing, and exits 0. A deploy that shipped
none of the new code is indistinguishable from a successful one — which is how
eleven merged fixes can sit in the repo and never reach the box.
Verified both halves against a real stack rather than asserting them: with a
source change staged, `up -d` left the image ID untouched; `up -d --build`
produced a new image ID and a healthy /health.
Adds an "Updating an existing deployment" section covering backup-before-migrate,
pull, rebuild, health check, and an image-ID comparison to prove a build actually
happened. Also spells out the rollback trap: migrations run on boot and are not
undone by checking out an older commit, so rolling back code without restoring
the snapshot leaves the schema ahead of the binary and the app refusing to start.
──────── fix(video): play the actual video, and answer Range requests
Every video in the app was unplayable. Two independent defects, either one
sufficient on its own, and nothing in the suite covered either — no test
anywhere played media or asserted a `<video>` src.
1. The lightbox handed `<video>` a JPEG.
`pickMediaUrl` is mime-agnostic, and compression only ever produces a THUMBNAIL
for a video (one `ffmpeg -vframes 1` frame) — no preview, no display. So in the
DEFAULT saver mode the element's src resolved to `/api/v1/upload/{id}/thumbnail`,
served as `image/jpeg` with `nosniff` so the browser can't even sniff its way
out. Chromium reports DEMUXER_ERROR_COULD_NOT_OPEN.
Fixed in the lightbox rather than in `pickMediaUrl`: FeedListCard shares that
helper and legitimately wants the thumbnail for its `<img>` poster, so a central
mime branch would break the feed. This mirrors the rule the diashow already
applies ("videos play the original file directly"). Added `preload="none"` so
saver-mode guests on cellular still fetch nothing until they press play — there
is no smaller video derivative to offer them — plus `playsinline`, without which
iOS hijacks playback into fullscreen.
2. `stream_media_file` ignored Range entirely.
It took no request headers, so it could not see `Range`; it always returned 200
with the whole body and never sent Accept-Ranges or Content-Range. iOS Safari
opens every `<video>` with a `Range: bytes=0-1` probe and abandons the load
without a 206 — so video failed on the app's primary platform even in `original`
mode, where the src was already correct.
Adds single-range support (`bytes=N-`, `bytes=N-M`, `bytes=-S`) with 206 +
Content-Range, 416 + `bytes */len` past EOF, and Accept-Ranges advertised on
every response. Anything it won't handle — multi-range, non-bytes units, garbage
— falls back to a full 200, which RFC 9110 explicitly permits and which is safer
than guessing. All four media routes share the helper, so seeking works
uniformly.
`get_original` now serves `inline` instead of `attachment`. An attachment
disposition is hostile to a `<video>` element, and this route is the only source
of playable video bytes; it also matches what the UI promises, since the action
is labelled "Original anzeigen" — view, not download. `no-store` is deliberately
kept so a takedown still revokes access promptly; ranges work fine under it, the
client just re-fetches.
Tests: 11 unit tests pin the parser (the iOS `bytes=0-1` probe, inclusive ends,
suffix ranges, clamping past EOF, 416 vs 200, malformed fallbacks). A new
03-feed/video-playback spec asserts the src is the original and not the
thumbnail, that the browser accepts the bytes as media (readyState > 0, no
MediaError), that no video bytes are delivered before play, and that Range
returns the correct 206 slices and a 416 past EOF — verified on both Chromium
and WebKit.
The "not downloaded before play" test asserts no *delivered body* rather than no
request: WebKit opens a connection for a preload="none" video and immediately
aborts it (GET, no Range, status 0, nothing transferred) while Chromium issues
nothing at all. The portable guarantee is that no response carrying bytes
completes.
──────── fix(auth): bind the role store to the identity, not to the tab
The role store I added in the moderation work is a module-level singleton seeded
ONCE at import. `goto()` is a client-side navigation, so leaving and re-joining in
the same tab re-imports no module and re-runs no onMount — the previous user's
role simply stayed resident. Nothing reset it: not join, recover, admin login,
"Event verlassen", `clearAuth`, nor the api.ts 401 auto-clear.
So a host who left, followed by a guest joining on the same phone, left that guest
with `isStaff === true` and a "🚫 Beitrag entfernen" action on other people's
photos. The backend 403s the delete, so this was a false affordance rather than a
privilege escalation — but `/feed` never fetched `/me/context`, so unlike every
other route it never self-corrected either. It survived until a hard reload.
The mirror case was equally broken and easier to overlook: a guest who recovered
into a host account got NO host affordances.
`clearAuth` already had a hook registry for exactly this shape of problem, with a
comment explaining it exists to avoid circular imports. Add the missing mirror,
`onSetAuth`, fired by both `setAuth` and `setAdminAuth` after the new token is
resident, and have the role store register on both sides: clear to null on
logout, re-seed from the new token on login. That also gives
`syncRoleFromToken` — dead code with zero callers since I introduced it — its
intended purpose.
Seeding from the claim fixes the reported bug, but the claim is frozen for the
token's 30-day life, so a promotion or demotion still wouldn't reach the feed.
`/feed` now calls the existing `refreshEventState()` on mount, which fetches
`/me/context` and applies both the authoritative role and the lock/release state
in one request. The feed is the one route gating a destructive action on the role,
so it should not be the only route running on a stale claim.
Tests: 04-host/role-identity-reset drives the real flows. The first asserts the
host DOES see the action before asserting the newcomer does not — a negative
assertion alone would pass against a build that shipped no moderation at all. The
second covers the mirror, promoting a guest server-side while their resident token
still claims `role: guest`, so a fix that only cleared the role would fail it.
──────── fix(compression): reclaim failed originals instead of leaking them
Round 1 stopped the compression worker deleting an upload's original on failure —
a transient ENOSPC or a codec panic must never destroy the only copy of a photo a
guest cannot retake. But it left `Upload::soft_delete`'s quota refund in place, so
the bytes stayed on disk while the uploader was charged nothing for them.
That is worse than it first looks. The row is soft-deleted, so the file is
invisible and unowned; a guest hitting a reproducible codec failure can accumulate
orphans indefinitely at zero personal cost. And `active_uploaders` counts only
users with non-deleted uploads, so dropping out of that count RAISES everyone's
per-user ceiling — the leak loosens the very quota meant to contain it.
Keep the refund: the uploader didn't cause the failure and shouldn't silently lose
quota to it. Bound the leak instead, with an hourly sweep alongside the existing
session cleanup in `spawn_periodic_tasks`, reclaiming failed originals older than
14 days — comfortably longer than any single event, so an operator investigating a
failed upload still has the file.
The selection predicate is the entire safety argument, so it is deliberately
narrow: `compression_status = 'failed'` AND soft-deleted AND past the window AND
`original_path <> ''`. That is exactly the state the give-up path leaves behind,
and it cannot reach a live upload, an owner-deleted one, or a failure still inside
its recovery window. `original_path` is cleared after a successful reclaim, which
makes the sweep idempotent — otherwise a row whose file is already gone is
re-selected on every tick forever. The row itself is kept as the audit trail.
Tests reproduce the selection verbatim (same pattern as upload_concurrency) and
assert it against five near-misses that must survive, both sides of the retention
boundary, and the idempotence property.
Also fixes two comments in export.rs still claiming "the compression worker
hard-deletes an original when its transcode fails" — no longer true, and the
defensive handling they justify is now justified by this sweep and by ordinary
deletes instead.
──────── fix(export): apply EXIF orientation in the keepsake too
Round 1 fixed EXIF orientation in the compression worker, which corrected the live
app — feed preview and diashow display. The export worker was missed, and it does
not reuse those derivatives: it re-decodes the originals itself with `image::open`,
which ignores the orientation tag, then re-encodes to JPEG, which drops the tag —
so the viewer has no way to recover it.
The damage was oddly shaped, which is exactly why it reads as a viewer bug:
Gallery.zip originals correct (byte-copied, EXIF intact)
Memories viewer grid thumbnails SIDEWAYS (always)
Memories viewer full image >5 MB SIDEWAYS (re-encoded at 2000px)
Memories viewer full image ≤5 MB correct (streamed byte-for-byte)
So in the keepsake people actually keep, every portrait photo in the grid was on
its side, and clicking through silently "fixed" small photos but not large ones.
Rather than paste the decoder dance a third time, extract `services::imaging::
decode_oriented` and route both workers through it, so there is exactly one way to
turn a file on disk into a DynamicImage. It carries a second invariant that had
also drifted: `image::open` applies NO decode limits, so the export path was
decoding arbitrary user-supplied images unbounded — the decompression-bomb cap
existed only in the compression worker. Both now come as a pair, which is the
point of having one function.
Not done: switching export to consume the existing `display` derivative. It would
fix orientation and drop a redundant full-resolution decode per photo, but it
would also replace the pristine ≤5 MB originals in the keepsake with 2048px
re-encodes — a real quality regression in the one artefact people keep forever.
Test uploads the round-1 fixture (40x20 landscape tagged Orientation=6), runs a
real export, pulls the thumbnail out of Memories.zip and asserts it came back
portrait — with a sanity check that the source really is stored landscape, so the
test can't pass against a pipeline that does nothing.
──────── fix(recover): cap name cycling, and stop bcrypt blocking the runtime
Round 1 gave /join a per-IP ceiling and left /recover with only its
`recover:{ip}:{name}` bucket. That key is right for the job it was written for —
stopping someone who knows a display name (they're listed on the feed) from
burning the victim's 3-strike PIN counter and locking them out on repeat. But the
name is ATTACKER-CHOSEN, so cycling names mints a fresh 5-attempt bucket every
time and the per-IP cost is unbounded.
What sits behind that limiter makes it worse than a normal flood: every call runs
a cost-12 bcrypt verify, including an UNCONDITIONAL throwaway verify for names
that don't exist — added deliberately to close a timing oracle. So an unknown name
is the single cheapest way to make the server do ~200ms of hashing.
Adds `recover_ip_rate_per_min` (default 30, migration 019), checked BEFORE the
per-name bucket so a name generator can't walk past it. 30/min is far above any
real recovery attempt while capping a flood. The per-name bucket is untouched and
remains the anti-guessing control.
The second half matters as much as the first: bcrypt was running inline on the
async runtime everywhere. At cost 12 that pins a tokio worker thread for ~200ms,
and there is only one per core — so a login flood stalled every other request on
the box, including the feed. There was no spawn_blocking anywhere in the auth
module, despite SECURITY-BACKLOG claiming bcrypt had been offloaded.
Route all of it through `verify_password` / `hash_password` on the blocking pool.
That covers /recover, /admin/login, the host PIN reset, and — the one most likely
to bite at a real event — the PIN hash minted on every single /join. Saturating
the blocking pool degrades logins; saturating the worker threads degrades
everything.
Tests: cycling distinct names from one IP now hits the ceiling with a Retry-After,
and — the assertion that keeps the fix honest — repeated wrong PINs against ONE
name are still throttled with the ceiling set generously high, so the ceiling
added protection rather than replacing it.
──────── ci(e2e): run WebKit, so the iOS guarantees actually gate a PR
The workflow installed only Chromium and ran chromium-desktop + chromium-mobile.
iOS Safari is the app's stated primary user — a wedding guest opening a QR link —
and WebKit is the only engine in the matrix that reproduces two of its behaviours:
- it enforces X-Frame-Options on the hidden download iframe, so a site-wide DENY
makes the keepsake download silently do nothing. Blink hands attachments to
the download manager before the frame check and never notices.
- it abandons a <video> load unless its Range probe gets a 206.
Both of those shipped. Adding 06-export to the webkit project in the round-1 fix
bought nothing on a PR, because CI never ran that project at all — the regression
test written specifically to catch the blocker only ever executed locally.
Runs 71 tests (67 pass, 4 skip on the documented IndexedDB-blob harness
limitation) in ~1.5 minutes locally, using the exact command added here.
──────── chore(backend): satisfy cargo fmt
`checks.yml` runs `cargo fmt --check`, and it has been failing since the round-1
audit fixes: I gated those on `cargo build` and `cargo clippy` but never ran fmt,
so three files drifted then and eight more this round. Pure formatting — no
behaviour change; clippy stays at zero and all 70 backend tests still pass.
Worth noting for next time: clippy passing is not evidence fmt does.
──────── chore: satisfy prettier in frontend and e2e
`checks.yml` runs `npm run format:check` for both projects and both were failing.
- frontend/src/lib/ui-store.ts is mine, unformatted since the round-1 upload-queue
badge fix — the same miss as the rustfmt one: I gated on svelte-check and eslint
but never on format:check.
- e2e/loadtest/* and e2e/shots.mjs have been unformatted since
|
||
|
fabi
|
0c0eed885a |
fix(audit-1): media gating, per-user limits, moderation UI, upload integrity
First audit round: a blocker and eight high-severity findings across the media
access gate, the guest-facing rate limiters, host moderation, and the upload
pipeline — plus the backup commands and the e2e/production divergences that hid
several of them.
Squashed from 7 commits, original messages preserved below.
──────── fix(export): let the keepsake download through X-Frame-Options on iOS
The keepsake download navigates a hidden, same-origin iframe (deliberately:
a top-level navigation to a 404/429 would unload the PWA). Caddy stamped a
site-wide `X-Frame-Options: DENY` that also covered the proxied `/api/*`.
Blink hands a `Content-Disposition: attachment` response to the download
manager at the network layer, so Chromium never noticed. WebKit enforces XFO
on the frame navigation first and aborts the load — so on iOS Safari, the
app's primary platform, tapping Download did nothing at all, silently.
Carve the two export endpoints out to SAMEORIGIN, which still blocks
cross-origin framing. Implemented as two disjoint matchers rather than an
override: Caddy applies the FIRST `header` directive outermost, so it wins on
write and a later, more specific `header` is silently ignored (verified
against the running test stack).
Also close the test gap that let this ship:
- `06-export` ran on chromium-desktop only; add it to `webkit-iphone`, the
only engine that enforces XFO on the download frame.
- No test in the suite ever clicked a download button — every archive
assertion used Node `fetch`, which has no frame and no XFO enforcement.
Add a spec that clicks it and awaits a real `download` event. Verified
falsifiable: with the blanket DENY reinstated it fails and reports the
WebKit refusal as the cause.
- Fix `ExportPage`'s card-scoped locators, which matched nothing: the cards
carry `class="card p-5"` (a Tailwind `@apply` component class), never the
`rounded-xl` the page object looked for. This had left the "shows enabled
download buttons" test red on main.
──────── fix(media): close the percent-escape bypass of the media gate
`/media/%70reviews/{id}.jpg` served a taken-down photo to anyone,
unauthenticated. Verified against the running stack: the literal path 404s,
the escaped one returned 200 with the full image. Same for displays,
thumbnails and originals, and any escaped byte in any position works.
Cause: the block was four `nest_service("/media/previews", 404)` route
matches sitting above a `ServeDir` on `/media`. axum matches on the RAW path
(matchit does no percent-decoding), while `ServeDir` percent-decodes when it
resolves the file. So `%70reviews` missed every blocker, fell through to the
ServeDir, and was decoded back to `previews/` on disk — reaching the bytes
with no soft-delete and no ban-hide check. That defeats a host takedown,
which is the entire point of the gate.
Remove the `/media` route tree outright instead of racing the decoder.
Nothing needs it: every media URL the backend emits is already a gated
`/api/v1/upload/{id}/{original,preview,display,thumbnail}` alias
(handlers::feed), the frontend contains zero `/media/` references, and the
`/media` in config.rs/disk.rs is the filesystem path while `media/` in
export.rs is a path inside the zip. `/media/**` now 404s regardless of
encoding. The route's own comment already said it "serves nothing" — it
wasn't a backstop, it was the vector.
Caddy keeps proxying /media/* deliberately: the app 404s it, and forwarding
means the e2e gating specs exercise the app's refusal exactly as production
would rather than being masked by the SvelteKit 404 page.
Extend the gating spec with the encoded variants — asserting only the literal
spelling is what let this sit undetected.
──────── fix(rate-limit): key the guest-facing limiters per user, not per IP
At a venue every guest is behind one NAT, so an IP-keyed limiter hands the
whole party a single bucket. On a fresh deploy 12 guests arriving together
meant 5 joined and 7 were turned away, with no Retry-After telling them when
to retry. `/feed` (60/min) and `/export` (3 per DAY — the fourth guest to
fetch their keepsake locked out until tomorrow) had the same defect.
`feed_delta` was already keyed per-user and its comment states the exact
rationale ("so one client can't starve others behind a shared NAT"); this
makes its siblings match.
- feed:{ip} -> feed:{user_id} (auth was already in scope)
- export:{ip} -> export:{user_id} (resolved from the download ticket's
session, which was previously looked up and discarded)
- join:{ip}: pre-auth, so there is no user to key on. Split in two — a loose
per-IP ceiling that only bounds raw volume (new `join_ip_rate_per_min`,
default 60, migration 017), plus the real 5/60s anti-spam bucket keyed
per (ip, name), mirroring the existing `recover:{ip}:{name}`.
admin_login / recover / pin_reset_req stay IP-keyed on purpose and are now
commented as such: they guard credential guessing, where a per-user or
per-name key would just hand an attacker a fresh bucket per guess.
Retry-After: the machinery existed but 7 of 8 sites called `check()` and
hard-coded `None`, so a throttled client was told to back off but never for
how long. Delete the bool `check()` wrapper entirely so `check_with_retry`
is the only entry point and the delay cannot be discarded by accident. Also
surface it for the PIN lockout, where the deadline was already known.
Fix the "unknown" fallback while here: every client_ip() caller passed that
literal, so any request without X-Forwarded-For — anything reaching the app
directly rather than through Caddy — shared ONE global bucket. Serve with
connect-info and use the peer address.
Tests: the reseed forces every limiter toggle off before each test, which is
why this whole class was invisible. Add 01-auth/rate-limit-shared-nat, which
enables them and asserts 12 guests share an IP without collision, that one
guest hammering their own name IS still throttled (so the fix re-keys rather
than removes the limit), and that feed/export buckets are per-user. Retarget
the ddos join test at the new per-IP ceiling — it asserted the defect.
Also seed `admin_login_rate_enabled` (read by the handler, seeded by no
migration and no reseed) and register `join_ip_rate_per_min` in the admin
config allowlist. Unrelated pre-existing red test fixed: 01-auth/join
asserted a "Willkommen!" heading the wedding redesign removed.
──────── feat(moderation): let a host remove a guest's photo or comment from the UI
`DELETE /host/upload/{id}` and `DELETE /host/comment/{id}` were complete on the
backend — transactional, SSE-broadcasting, audit-logged — and had zero frontend
callers. The feed context sheet offered "Löschen" only when
`target.user_id === myUserId`, so the only lever a host actually had against an
unwanted photo was banning the uploader.
That is both disproportionate and ineffective. A ban doesn't retract what was
already posted, and it makes things strictly worse for comments: the ban check
runs BEFORE the ownership check on the guest delete route, so banning an abusive
author leaves their comment on screen and permanently undeletable by them. With
no host affordance, nobody could remove it at all.
- feed: hosts/admins get "Beitrag entfernen" on other people's posts, routed to
the host endpoint (the guest route 403s anything the caller doesn't own) with
moderation-specific confirm copy. Own-post "Löschen" is unchanged.
- lightbox: same for comments, via /host/comment/{id}.
- Ban semantics are deliberately untouched (USER_JOURNEYS §10 — banned users keep
read access and cannot write). The deadlock is broken by giving the host a way
in, not by loosening the ban.
Live role (this had to come first). `getRole()` decodes the JWT claim, but the
token is never reissued — the backend slides the session row forward and treats
the DB row as authoritative. The claim is therefore frozen for the token's
lifetime: up to 30 days. A guest promoted at the party saw no Host-Dashboard and
no moderation actions until they signed out and back in, even though
`/me/context` had been returning their real role on every page load and 4 of its
6 call sites dropped the field on the floor.
Add `role-store.ts`: seeded from the claim so there's no flash of the wrong nav,
then corrected by every `/me/context` response. Point the ad-hoc `getRole()`
callers at it (account, upload, host, admin, and the new feed gate). The host and
admin dashboards now derive `myRole` reactively, so a demotion disables their
controls immediately instead of at next login.
Tests: 04-host/moderation-ui drives the real UI — host removes a guest photo and
it's gone from /feed server-side; a plain guest is offered nothing on someone
else's post (the mirror that keeps the first test honest); a promoted guest gains
the dashboard on reload while their token still carries `role: guest`; and a host
removes the comment of an already-banned guest, asserting first that the author's
own delete 403s so the deadlock is real.
──────── fix(upload): stop destroying originals, apply EXIF orientation, surface rejections
Three defects in the same pipeline, each of which loses a photo or misrepresents
one.
1. A transient error destroyed the guest's only copy.
`process`'s error arm unconditionally `remove_file`d the original. Every failure
routed there: `create_dir_all`, both derivative `save_with_format` calls (disk
full is the canonical case, and it arrives exactly when many guests upload at
once), a panic inside the image codec, or a momentary DB-pool exhaustion. The
row is only SOFT-deleted, so the bytes were the sole unrecoverable part — and
they were the part we deleted. The author already knew this was wrong next door:
`backfill_missing_display` says it "must NEVER soft-delete an upload that already
has a working preview".
Retry up to 3 times with backoff (re-checking the e2e generation guard after each
sleep), and on final failure keep the refund + soft-delete but leave the original
on disk, logging its path. A failed upload is now recoverable instead of gone.
2. Every portrait photo was stored sideways.
Phones don't rotate sensor data — they record the camera orientation in EXIF and
store the pixels as shot. `decode()` returns those raw pixels and the JPEG
re-encode writes no EXIF, so the 800px preview, the 2048px diashow display and
the keepsake were all rotated 90°, while "Original anzeigen" rendered upright
because the original keeps its tag. That asymmetry is why it reads as a viewer
bug. There was no EXIF handling anywhere in the repo and no exif crate.
Read the tag via `into_decoder()` (which carries the decode Limits through, so
the decompression-bomb cap is untouched) and apply it. Missing/malformed tags
fall back to NoTransforms — most images have none.
Existing derivatives are already baked wrong, so migration 018 adds
`derivatives_rev` and `backfill_missing_display` becomes
`backfill_stale_derivatives`: it now also picks up anything below the current rev
and regenerates it once from the original, which still carries its EXIF. Videos
are marked current in the migration — ffmpeg already honours the rotation matrix.
Bump DERIVATIVES_REV for any future change that invalidates derivatives.
3. A rejected upload vanished without a word.
`UploadQueue.svelte` — 162 lines holding the ONLY renderer of an item's error
text, the only "Erneut" retry button and the only rate-limit countdown — was
never imported anywhere, so `retryItem`, `removeItem` and `clearCompleted` were
unreachable at runtime. On a terminal rejection the store purged the blob and
wrote a clear German reason into `entry.error` "so the UI shows a clear reason".
There was no such UI. And `uploadBadgeCount` counted only pending/uploading, so
the badge decremented exactly as if the upload had succeeded.
Mount the queue on /upload, toast the reason immediately (the flow sends the user
to /feed straight after staging, so the list alone would still miss them), and
count blocked/error in the badge so a failure can't read as success.
Tests: 02-upload/exif-orientation uploads a 40x20 fixture tagged Orientation=6
and asserts both derivatives come back PORTRAIT, with a sanity check that the
source really is stored landscape. 02-upload/rejection-visible bans the uploader
between staging and sending, then asserts the toast, the queue row with the
server's reason, and that the item is still counted.
Note: 02-upload/quota's 4 failures are pre-existing and unrelated — see the next
commit.
──────── docs(backup): make the backup commands work; fix the e2e/prod divergences
Backup. Both documented commands failed on the shipped stack, and the sentence
explaining them was wrong too:
- `pg_dump $DATABASE_URL` — `DATABASE_URL` is only ever in the compose
environment, never an operator's shell, and it points at `db:5432`, which is
compose-internal DNS. The app image has no postgres client either.
- `> /media/backups/…` — `/media` is a named volume mounted inside the app
container, not a host path, and nothing ever creates a `backups` subdirectory.
- `rsync /opt/eventsnap/media/` — that path does not exist anywhere.
- "a single path to back up" — false, and dangerously so: exports were moved to
their own `exports_data` volume precisely so a keepsake (which contains every
photo in the event) can't be served off the media tree. Backing up only
`media_data` silently loses every generated keepsake.
Rewritten as three commands — db via `docker compose exec -T db pg_dump`, and one
`docker run … tar` per volume — all verified against the running stack. The
volume mounts use `/src`, not `/media`: I hit the footgun while testing this.
Docker pre-populates an EMPTY volume from the image's own directory and chowns it
to match, so `-v media_data:/media alpine` tars alpine's cdrom/floppy/usb, writes
them into the volume, and leaves it root-owned so the non-root app can no longer
write. Mounting where the image has nothing avoids all of it. Documented inline
so the next person doesn't rediscover it.
Also correct the architecture notes: `/media/*` no longer routes to the backend
(that static tree was removed as a gating bypass), and `exports_data` was missing
from the volume list — the one volume an operator most needs to know about.
e2e stack: add the `EXPORT_PATH` + `/exports` volume it was missing. The file
says "mirrors production layout"; without these, exports landed on the container's
writable layer at the default path, so export-leak and export-video wrote real
archives into ephemeral storage and the "exports live outside media" invariant
was never actually exercised.
Pre-existing red test, unrelated to the audit: all four 02-upload/quota tests
have been failing since
|
||
|
fabi
|
ee554e7f38 |
style(backend): rustfmt the whole tree; gate cargo fmt --check in CI
The backend had never been run through rustfmt. Doing it in one mechanical pass (134 files) so no future functional diff is buried under formatting churn, then gating `cargo fmt --check` in checks.yml so it stays clean. Formatting only — no logic, SQL, or behaviour changed. Verified after the reformat: cargo test 56 passed, clippy --all-targets -D warnings clean, cargo fmt --check clean. This is the deferred cleanup noted when CI's Format step was first left out. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
||
|
MechaCat02
|
641174717c |
fix(user-flow): close offline-queue, export, session, ban & realtime gaps
Comprehensive user-flow review across guest/host/admin roles, then fixes with
e2e regression guards. Highlights:
- Offline upload queue auto-resumes on reconnect: network errors keep items
pending (not error), 4xx are terminal (no infinite retry), quota exhaustion
returns a distinct 413; queue cap + dedup.
- Export lifecycle: release atomically locks uploads; reopen invalidates and
re-release regenerates the keepsake; workers claim their job atomically so a
reopen->re-release can't corrupt the ZIP; startup re-spawns interrupted
exports.
- Sessions slide on activity (no 30-day cliff); JWT expiry deferred to the
revocable session row; sign-out-everywhere + revoke-on-PIN-reset.
- Ban always hides content (v_feed / find_visible_media / export filter
is_banned) but stays a read-only ban per USER_JOURNEYS §10 — sessions are
not revoked, read access + keepsake download preserved.
- Realtime: server-clock SSE delta cursor; event-closed/opened drive the UI
live; feed_delta rate-limited; like returns {liked, like_count} to fix
multi-device drift; lightbox live comments; diashow delta backfill.
- Forgotten-PIN in-app request flow; simultaneous same-name join returns 409;
quota increment is transactional; operator floor.
Adds e2e/specs/10-flow-review/ (offline resume, export integrity, deterministic
anti-race guard) and updates existing specs for the new contracts.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
|
||
|
fabi
|
a4b2c5bd1c |
fix(security): harden authz, media gating, recover, SSE, deps
Security audit follow-up. No Critical/High existed; these close the
Medium/Low findings.
F1 [Med] Host privilege boundary: a host could demote a peer host to
guest and then ban / PIN-reset (→ account takeover via /recover) them,
because the ban/pin-reset peer guards key off the target's *current*
role. set_role now blocks a non-admin from demoting a host.
F2 [Med] Moderation now revokes preview/thumbnail access: they are served
through visibility-checked aliases (/api/v1/upload/{id}/{preview,
thumbnail}) that filter soft-deleted / ban-hidden uploads, and direct
/media/previews|thumbnails is 404-blocked. Feed emits the gated URLs;
Caddy keeps them privately cacheable (max-age=300, short so moderation
revokes promptly — the live feed already evicts cards via SSE). Uses a
lean find_visible_media() (paths+mime only) on the media hot path.
F3 [Med/Low] npm audit fix: svelte 5.55.1→5.56.4 (SSR-XSS advisories),
devalue 5.6.4→5.8.1 (DoS). Prod deps: 0 vulnerabilities.
F4 [Low] /recover no longer leaks account existence: unknown display name
returns the same 401 as a wrong PIN, and runs a dummy bcrypt verify so
timing matches — closing the enumeration + timing oracle.
F5 [Low] SSE streams re-validate the session every ~60s and close once it
is logged out / expired, instead of running until client disconnect.
F6 [Info] X-Content-Type-Options: nosniff set at the app layer on all
media responses (defense-in-depth alongside the edge).
Tests: new e2e specs for F1 (host cannot demote peer host), F2 (preview
gated + 404 after delete + direct /media blocked), F4 (uniform 401).
40 backend unit tests + 182 e2e passing.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
|
||
|
fabi
|
d6c91974eb |
perf(backend): close config/upload/export hot paths + stability fixes
Performance: - Cache the runtime `config` table in-memory (ConfigCache) with synchronous invalidation on every write (admin PATCH + test reseed). Was re-reading each key from Postgres on every request (~8 round-trips per upload). - Stream uploads chunk-by-chunk to a temp file instead of buffering the whole body in RAM (peak was up to the per-class cap, e.g. 500 MB/video); only 512 sniff-bytes are kept for magic-byte detection, then atomic rename into place. - Cache the media-filesystem disk snapshot (DiskCache, 15s TTL) shared by the quota check and admin stats; drop the discarded System::refresh_all(). - HTML export streams video (and small-image) originals straight into the ZIP via a manifest instead of copying them to a temp dir first (removed the transient 2x disk usage) and drops the double directory scan. - Auth extractor resolves session -> live user in one JOIN (was two queries), touching last_seen_at by token hash. Stability: - SSE: on broadcast lag, emit a `resync` event so the client runs a delta fetch instead of silently losing events; frontend reconciles adds, deletions, and (via an in-place refresh) like/comment counts on visible cards. - Storage quota fails OPEN when the disk can't be read (was a 0-byte limit that locked out all uploads). - Graceful shutdown drains in-flight requests on SIGTERM/SIGINT, bounded by a 10s backstop so open SSE streams can't stall a deploy. - Upload removes the persisted file if the DB transaction fails (no orphaned bytes with no row to reclaim them). Tests: - New pure select_disk() with 5 unit tests (longest-prefix, fallbacks, fail-open). - New e2e export-video spec covering the HTML export's video-streaming branch. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
||
|
fabi
|
faf7a2504a |
fix(audit): restore broken upload pipeline + role-based E2E audit fixes
A comprehensive role-based E2E audit (guest/host/admin, across browser sessions) surfaced one critical and several smaller issues; this addresses them and hardens the tests that missed them. Critical - The client upload pipeline was fully broken: the IndexedDB v1->v2 upgrade opened a *new* transaction inside the upgrade callback, which throws during a version-change transaction and aborted the whole upgrade, leaving the queue object store uncreated -- so no UI upload ever fired. Reuse the version-change transaction the callback provides, and bump the DB to v3 with a contains() guard so installs already corrupted by the shipped bug self-heal on next load. Re-enabled the previously-fixme'd UI upload E2E test. High / Medium - Event lock is uploads-only again: likes, comments and browsing stay open while the event is locked (USER_JOURNEYS 9.3 / FEATURES) -- it was wrongly freezing social interaction. Updated the event-lock spec accordingly. - get_original now excludes soft-deleted and ban-hidden uploads, and direct /media/originals/** serving is blocked, so a hidden user's originals can no longer be pulled by UUID (all originals go through the checked alias). - The upload handler reads the file field with an early-abort size cap chosen from the declared content-type, instead of buffering the entire body before the size check. Low - unban_user mirrors the ban role guard (a host can no longer unban a host/admin banned by an admin). - reset_user_pin's UPDATE is event-scoped. - Admin login returns and stores a real identity (user_id + display name) instead of a blank session. - The host user list no longer renders target-actions (ban/promote/demote/PIN) on the caller's own row, where the backend always rejected them. - /diashow gains a client-side auth guard like the other protected routes. - The join page shows the event name via a new public GET /api/v1/event. Verified: backend cargo build clean, frontend svelte-check 0 errors, full Playwright E2E suite 144 passed / 1 skipped. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
||
|
MechaCat02
|
d228676a56 |
fix(security): cross-event authz, SSE ticket flow, account hardening, audit logs
Follow-up to the comprehensive code review. Five batches: 1. Cross-event authorization: host_delete_upload, unban_user, and host_delete_comment now scope by auth.event_id. Adds Upload::find_by_id_and_event / soft_delete_in_event and a Comment::soft_delete_in_event variant that joins through upload. 2. Token exposure: SSE auth no longer puts the JWT in the URL. New /api/v1/stream/ticket endpoint mints a short-lived single-use ticket bound to the session; the EventSource passes ?ticket=... instead. Refuse to start in APP_ENV=production with the dev JWT sentinel; warn loudly otherwise. 3. Account hardening: per-IP+name rate limit on /recover (mitigates targeted lockout DoS), per-IP rate limit on /admin/login, random 32-char admin recovery PIN (replaces "0000"), structured tracing events for wrong PIN, lockout, failed admin login, ban/unban/role change/pin-reset/host-delete. 4. DoS / correctness: comment listing paginated (LIMIT 50 + ?before= cursor), hashtag extraction whitelisted to ASCII alnum+underscore (≤40 chars) with unit tests, display_name / caption / comment body length validated in chars rather than bytes. 5. Cleanup: session-touch failures now logged, DATABASE_MAX_CONNECTIONS env var (default 10). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
||
|
MechaCat02
|
05f76514a2 |
fix(backend): JWT jti, NUL-byte guard, dev-only truncate endpoint
Two bugs surfaced while running the new E2E suite, plus a small test hook: - jwt.rs: add a per-token `jti: Uuid` claim. Without it, two `create_token` calls in the same wall-clock second for the same (sub, role, event_id) produced identical JWT bytes — and identical sha256(token) hashes — which then collided on `session.token_hash UNIQUE` with a 500. Manifests in real use when an admin clicks "Anmelden" twice fast. - auth/handlers.rs: reject display names containing 0x00. Postgres rejects NUL in TEXT columns with `invalid byte sequence for encoding "UTF8"` and the request leaks back as a 500. Now returns 400 with a clean message. - handlers/test_admin.rs + main.rs: new POST /api/v1/admin/__truncate route, compiled in always but only **registered** when EVENTSNAP_TEST_MODE=1 is set on startup. Truncates every event-scoped table, reseeds config from migration defaults, wipes media on disk, and clears the in-memory rate limiter. RequireAdmin-gated so it's not anonymous even in test mode. In production builds (no env var) the route returns 404 — verified by the startup log message. - services/rate_limiter.rs: add `clear()` so the truncate handler can wipe the in-memory window map between tests. - Dockerfile: bump rust:1.87 → rust:1.88 (current dep tree needs it) and COPY ./migrations into the build context so the `sqlx::migrate!()` macro can resolve at compile time. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
||
|
MechaCat02
|
2e98f5ddf5 |
backend(features): quota enforcement, PIN reset, /me, original download, toggles
- handlers/me.rs (new): GET /api/v1/me/context (profile + role + privacy_note
+ quota toggle state, fetched once on app bootstrap) and GET /api/v1/me/quota
(live used / limit / active uploaders / free disk).
- handlers/upload.rs:
- quota enforcement via the dynamic formula
floor((free_disk * tolerance) / max(active_uploaders, 1)),
gated by quota_enabled + storage_quota_enabled toggles
- new GET /api/v1/upload/{id}/original — unauthed by design
(matches /media/previews/* — URL is the secret) so it works as
<img src> / <video src> / window.open
- rate-limit toggle wiring (rate_limits_enabled + upload_rate_enabled)
- handlers/host.rs:
- POST /api/v1/host/users/{id}/pin-reset — Host may reset guest PINs,
Admin may reset guest + host PINs (never another admin or self).
Returns the freshly-generated plaintext PIN once; emits a global
pin-reset SSE so the affected user's device can clear its localStorage.
- set_role guard expanded so hosts can demote other hosts (not self,
never admins) — backend match for the doc'd permission model.
- handlers/admin.rs: ALLOWED_KEYS split into NUMERIC_KEYS / BOOL_KEYS /
TEXT_KEYS with per-kind validation; saving privacy_note broadcasts an
event-updated SSE so other clients refresh live.
- handlers/feed.rs, handlers/admin.rs (export), auth/handlers.rs:
rate-limit toggle wiring at every limiter call site.
- auth/handlers.rs: when an expired PIN lockout is detected on /recover,
reset failed_pin_attempts to zero before the bcrypt check — without
this every wrong PIN re-locked the user after the cooldown.
- main.rs: wire startup_recovery + spawn_periodic_tasks, register the
new /me/context, /me/quota, /upload/{id}/original, and
/host/users/{id}/pin-reset routes.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
|
||
|
MechaCat02
|
0351e967c0 |
feat: unique display names + inline recover on join (v0.13.1)
Backend: migration 007 adds a case-insensitive unique index on user names per event. join endpoint returns 409 conflict when the name is taken. find_by_event_and_name uses LOWER() for case-insensitive recovery. Frontend: join page handles 409 with a name-taken view — amber warning, name-choice tips, inline PIN recovery form, and "Anderen Namen wählen" button. Test guide updated with Steps 8 and 9. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> |
||
|
MechaCat02
|
de0e395a9e |
feat: auto-retry uploads when rate limited (v0.13.0)
Backend: rate limiter gains check_with_retry() returning seconds until the next slot opens. Upload 429 responses include retry_after_secs in JSON and a Retry-After header. Frontend: upload queue catches 429 as RateLimitError, resets affected item to pending, schedules processQueue() for the server-reported delay, and shows a live countdown banner in the queue UI. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> |
||
|
MechaCat02
|
989d88022a |
feat: implement rate limiting across all API endpoints
Add sliding-window in-memory RateLimiter service (Arc<Mutex<HashMap>>) with per-IP and per-user-id limits on all public endpoint classes: - POST /api/v1/join: 5/min per IP - GET /api/v1/feed: configurable per IP (feed_rate_per_min, default 60) - POST /api/v1/upload: configurable per user (upload_rate_per_hour, default 10) - GET /api/v1/export/zip|html: configurable per IP (export_rate_per_day, default 3) Limits are hot-reloadable via the config table. All 429 responses use German error messages. Client IP is read from X-Forwarded-For (Caddy). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> |
||
|
fabi
|
8b9d916265 |
feat: implement authentication flow
Backend: - AppConfig, AppError, AppState modules for shared infrastructure - JWT creation/verification with HS256 (jsonwebtoken crate) - Session management: SHA-256 token hashing, DB-backed sessions - Auth middleware: AuthUser, RequireHost, RequireAdmin extractors - POST /api/v1/join: name-only registration, 4-digit PIN + bcrypt hash - POST /api/v1/recover: PIN-based recovery with 3-attempt lockout (15 min) - POST /api/v1/admin/login: bcrypt password verification - DELETE /api/v1/session: logout (session invalidation) - Migration 006: user PIN lockout columns (failed_pin_attempts, pin_locked_until) - Models: Event, User (with role enum), Session with all CRUD methods Frontend: - api.ts: typed fetch wrapper with automatic Bearer token injection - auth.ts: JWT/PIN localStorage management with Svelte store - /join: name entry form with PIN display modal and copy button - /recover: name + PIN recovery form with saved PIN pre-fill - /feed: placeholder gallery page with logout - Root layout: auth initialization on mount - Root page: redirect to /join or /feed based on auth state All responses use German language strings as specified. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> |