Uploaded files are served from the SAME ORIGIN as the dashboard, so how a browser
interprets them is a security boundary. Two things decided that interpretation, and
both were caller-controlled: the stored extension came from
`path.extname(originalname)`, and the only type check read `file.mimetype` — a request
header. A caller could therefore choose to have their bytes served as an active
document from the app origin.
Two independent invariants now hold the boundary:
1. INGEST — lib/upload-sniff.js sniffs magic bytes after multer writes a neutral
`.part` file (diskStorage names the file before any bytes exist, so the sniff cannot
happen there), maps the result through a hardcoded mime->extension allowlist, renames
accordingly, and stores the sniffed mime. Unsupported bytes are refused with a 400.
2. SERVING — upload responses carry `Content-Security-Policy: sandbox`, so if a response
is ever treated as a document it lands in an opaque origin with scripts disabled.
Anything outside the inline-safe extension set is additionally forced to download.
This holds regardless of how a file reached disk, so a future gap in (1) is contained
rather than exploitable.
Applied at every instance of the pattern, not just the first: lib/content-ingest.js,
the /replace route, the four content-serving paths across server.js and routes/content.js
(the latter pair currently shadowed by mount order, which is not a guarantee), and the
ZIP-import path in routes/status.js, which took its extension from the archive entry.
SVG stays accepted and stays inline: white-label logos are SVG, and octet-stream +
nosniff makes <img> fail. Scripts in an SVG never run in an image context, and the
sandbox CSP covers the one case where they would — a direct navigation. SVG is also no
longer handed to sharp, which removes the librsvg path where the open libvips CVEs live.
Existing rows are untouched — no migration. The four upload fixtures in agency.test.js
uploaded `Buffer.from('x')` declared as image/png; that is the exact "declared type is a
lie" case this closes, so the fixtures now use real PNG bytes. No assertion changed.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The subprocess-booting test suites hand-picked fixed ports in a cramped ~3955-4021 range, and
156-schedule-read-path deviated to a RANDOM port (3900 + rand%90) that overlapped those fixed
ports. Under CI load two servers could race on the same port, surfacing as flaky "no such table:
devices" / "FOREIGN KEY constraint failed" (a server answering a request against a half-migrated
or wrong DB). It's environmental — the suites pass locally and in isolation.
Fix: a shared test/helpers/free-port.js (bind :0 on loopback, read the OS-assigned port, release)
called in before() so every suite gets a guaranteed-unique ephemeral port — concurrent suites can
no longer collide, and no one has to hand-assign ports.
- Codemod converted 30 suites: const PORT = <fixed|random> -> let PORT (+ BASE) assigned via
`PORT = await freePort()` at the top of before().
- 3 hand-fixed (different structure): 148-eviction-storm (lowercase `base`), boot-health (no
before() — allocates PORT + a throwaway SEED_PORT inside the test, replacing the hardcoded
3894), totp-keyrotation (no before() — allocates at the test start before bootServer()).
No fixed 39xx/40xx ports remain. Full server suite 435/435; the 4 hand-touched suites pass in
isolation. Pure test-infra change — no app code touched.
Agency-portal uploads previously all landed at the workspace library root, unsorted.
Instead of the issue's whole-workspace folder dropdown (which would leak every folder
name to an external party), bind ONE folder per agency token — admin-controlled and
agency-invisible — and scope the portal picker strictly to that folder's own subtree
(Hybrid-C). Fully backwards-compatible: no bound folder -> root, exactly as before.
Model / multi-workspace: an agency token is bound to ONE workspace at issuance, so the
token key IS that workspace's private link and the bound folder lives in that workspace.
An admin with N workspaces mints one token per workspace (each with its own auto-folder).
No workspace-switcher in the portal — the token is the tenant boundary.
Backend:
- api_tokens.upload_folder_id (additive; ON DELETE SET NULL -> deleting the folder falls
back to root).
- lib/agency-targets.folderSubtree(): recursive-CTE helper = the SINGLE confinement source
shared by GET /api/agency/folders AND the POST /api/agency/content target check, so the
set the agency can SEE and the set it may WRITE to can never drift. Workspace-guarded at
the anchor row; descendants inherit the workspace (folders.js forbids cross-ws parents).
- routes/agency.js: GET /folders (bound subtree only); POST /content defaults to the bound
folder and 403s any folder_id outside the subtree.
- routes/tokens.js: create auto-creates "Agency — <name>" (or binds a picked folder,
validated same-workspace, respecting the 100-folder cap) inside the token tx; new
PUT /:id/upload-folder to rebind; listing surfaces the bound folder name.
- middleware/apiToken.js + lib/content-ingest.js: upload_folder_id onto req.apiToken; ingest
writes folder_id.
Frontend:
- Agency portal: folder <select> shown only when a real subfolder choice exists (identifies
the "Main folder" root client-side without learning the token's folder id).
- Settings: folder pick at token creation, bound-folder display, rebind modal.
- i18n: 7 new apitoken.* keys across all 5 locales.
Tests (429/429):
- test/agency-folder.test.js: 5 folderSubtree confinement bites (subtree in, siblings out,
workspace guard, null -> root).
- test/agency.test.js (+1 e2e): auto-create, default-to-bound, in-subtree pick lands there,
sibling -> 403, admin-pick, unknown-pick -> 400, rebind-to-root.
Closes#158.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Agencies can only be designated FULL-SCREEN playlists (no item with zone_id) - a full-screen
agency upload can't safely target a zone, so the ambiguous case is excluded rather than
solved. Checked at THREE points:
- Designation (tokens.js create + PUT /:id/targets) -> 400: reject a zoned target.
- Upload (agency.js item-add) -> 409: block if the playlist BECAME zoned after designation.
MANDATORY because auto-publish has no draft net - a full-screen playlist designated to an
auto-publish token, then zone-assigned, would otherwise auto-publish a full-screen upload
into a zoned playlist. The upload check is the only thing that catches it.
- Picker (settings.js): zoned playlists greyed/disabled with the reason (GET /playlists now
returns a zoned flag); backend reject is the guard if the UI is bypassed. i18n x5.
isZonedPlaylist = EXISTS(playlist_items WHERE zone_id IS NOT NULL). Pure restriction - no
zone structure, no api_token_target_zones.
Bite-test (the exact sequence) GREEN and re-proven to bite: full-screen -> designate to an
auto-publish token -> zone-assign the playlist -> agency upload is BLOCKED (409), not
auto-published; neutralizing the upload check makes it go red. 149 suite green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Settings → API Tokens: each agency token gets an "Edit playlists" control that opens the
playlist picker pre-checked with the token's CURRENT designations (from the list GET's
tok.targets), lets the admin add/remove, and calls the existing PUT /:id/targets to
atomically re-designate. Reuses the creation picker pattern; common.save/cancel reused;
edit_targets + targets_updated i18n across all 5 locales. No security-model change - the
endpoint was already proven.
Test (integration): PUT /:id/targets re-designates (add + remove) and the confinement
follows the NEW set - a re-designated token reaches only its new playlists (router.param
403s the removed one). 148 suite green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Investigation found zone placement is a DEVICE property (device.layout_id), not a playlist
property: a normal playlist has no derivable layout (zone_id is NULL unless set in the
device-assignment flow), so a playlist-scoped zone grant can't reach the normal flow. The
right model: placement belongs to the device (same playlist can be full-screen on one screen,
a zone on another); the agency just gets whole-playlist grants + size-guidance.
Removed the zone-grant machinery (security-adjacent dead surface is a liability, not dormant
convenience): api_token_target_zones (schema + a DROP migration for the dev DB where the
short-lived CREATE ran), resolveGrantedZone, grantableZoneIds, buildZoneGrantRows, the
create/PUT zone validation, GET /api/playlists/:id/zones, getPlaylistZones, the settings
zone-picker + its i18n, and the zone-grant bite-test.
KEPT (model-agnostic, good): the reactive per-playlist size-guidance card - GET
/api/agency/playlists/:playlistId/layout (router.param-confined) now reports the zones the
playlist actually feeds (where/what-size content lands), or full-screen when it has no layout.
Whole-playlist grants = today's working model. 147 suite green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Issuance (on the proven seam):
- tokens.js create + PUT /:id/targets accept per-playlist zone grants (target_zones), inserted
into api_token_target_zones inside the same transaction as the playlist grants (FK requires
the parent, so order matters and is correct).
- Issuance validation (the mirror of runtime confinement): grantableZoneIds() - can grant ONLY
a zone the playlist's layout actually feeds; can't grant one it doesn't have or one from
another playlist's layout. Bite-tested. PUT re-designate stays atomic: delete parent rows ->
zone grants cascade out (no manual child delete).
- settings.js: checking a designated playlist reveals its grantable zones (GET
/api/playlists/:id/zones, JWT); leave unchecked = whole-playlist. i18n across all 5 locales.
Card:
- GET /api/agency/playlists/:playlistId/layout (rides router.param - confined; a non-
designated playlist -> 403, asserted). "Your zone" = the GRANTED zones. Retired the
token-wide /layouts (the per-playlist card replaces the disconnected lump).
- Portal card reacts to the playlist selector: pick a playlist -> its layout renders, the
granted zone highlighted with px size, siblings as context.
Full suite + agency bite-suite green (154).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
So the agency can size/place content: returns the canvas size + zone positions/sizes for the
layouts its designated playlists feed, marking which zones are theirs. DEVICE-FREE BY
CONSTRUCTION - the query path is playlist_items.zone_id -> layout_zones -> layouts and never
touches devices/groups/schedules, so device names/locations/IPs/topology are structurally
absent, not filtered. Geometry only - no sibling-zone content. layout.name included (admin's
canvas name); thumbnail_data omitted (could render other zones' content).
Confinement query in lib/agency-layouts.js, bite-tested: own layout YES, a non-designated
playlist's layout NO, response has NO device fields (asserted on a db where a location-named
device exists), and neutralizing the t.token_id filter goes red. 142 suite green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
api_tokens.auto_publish (DEFAULT 0 = draft, the fail-safe). Admin sets it at token creation
in the designate UI (checkbox, agency scope only). The agency endpoint reads it from the
TOKEN ROW via req.apiToken (apiTokenAuth attaches it) - NEVER from req.body, so an agency
can't opt itself out of approval. 0 -> markDraft; 1 -> the shared publishPlaylist path.
Tests (integration): draft is the default; a draft token with auto_publish:true IN THE BODY
still lands draft (body ignored); an auto-publish token goes live; manual publish still works
(extraction regression). i18n across all 5 locales. 141 suite green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The portal needs to show an agency which playlists it may post to. New read surface on the
security primitive, built with write-path rigor: the confinement query lives in
lib/agency-targets.js (own token + bound workspace only) and is bite-tested four ways -
own targets yes; another token's, outside the allowlist, and cross-workspace all NO;
neutralizing the t.token_id filter makes it go red. Real-path wiring + the portal's
graceful 401 trigger asserted in the integration suite. No :playlistId, so router.param
doesn't apply - the query is the seam.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The agency capability behind the proven off-ladder/agencyGate primitive:
- agencyGate is now SCOPE-only at the mount; the per-target check is router.param
('playlistId') in routes/agency.js - it fires WITH the param before the handler, so no
:playlistId route can skip it (drift-proof). A mount-level target check was silently
bypassed (Express populates req.params only at route match); the integration bite-suite
caught it - this is the fix.
- routes/agency.js: POST /content (shared ingest) + POST /playlists/:id/items (date-bounded
#74/#75 item; lands as draft so the admin's re-publish is the approval gate).
- tokens.js: issue scope='agency' tokens bound to a non-empty in-workspace playlist
allowlist (atomic); PUT /:id/targets re-designates (JWT-only -> can't self-widen).
- server.js: AGENCY_ROUTERS mounted bearerAuth + resolveTenancy + agencyGate.
Full bite-suite (test/agency.test.js) GREEN and re-proven to bite on the SHIPPING path:
neutralizing the router.param check makes non-designated->403 go red. Four assertions at
three seams: target (router.param), off-ladder (tokenScopeGate), can't-widen (tokens
JWT-only), issuance cross-workspace (create validation). 139 suite green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
