Five low-risk, high-value fixes surfaced by the security review:
#3 Branding lockdown — `custom_domain`/`custom_css` (which feed the PUBLIC,
pre-auth branding resolver and the login-page <style>) are now settable only
by platform admins; a workspace_admin can no longer hijack the platform login
page by claiming its domain. The public /api/branding (+ /domain) now return
only presentational fields via publicBranding() (no id/user_id/workspace_id/
custom_domain/timestamps leak).
#6 Strip device_token — the device WS auth secret (validated with
timingSafeEqual) was returned in device list/get/update + pairing responses
(SELECT d.* / *). New lib/device-sanitize.js strips it everywhere; prevents
device impersonation by any workspace user.
#7 must_change_password enforced server-side — was a frontend-only redirect, so
a provisioned temp password worked indefinitely via the API. requireAuth now
403s every route except GET/PUT /api/auth/me (the password change, which
clears the flag) and logout while the flag is set.
#8 XSS — escape user data interpolated into innerHTML in teams.js, kiosk.js,
layout-editor.js (team/page/layout/zone names, member name/email, kiosk
config fields). scriptSrcAttr 'unsafe-inline' made these exploitable via
injected event handlers, not just markup.
#9 Thumbnail IDOR — /api/content/:id/thumbnail had no auth/scope gate (any UUID
served any tenant's thumbnail). Now mirrors the /file route's playlist/widget
workspace-scoped reference check.
Tests: new test/security-fixes.test.js (device strip, publicBranding field
allowlist, must_change_password gate). Full suite 41/41. Verified live against a
prod-data copy: device_token absent from /api/devices, /api/branding trimmed.
Not addressed here (tracked for follow-up): Android OTA signature verification
(Critical), public widget-render XSS, token revocation/logout, pairing-code
strength, validateRemoteUrl hardening, import quota.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
platform_operator is cross-org STAFF: it can see and act-as into every
org and read/write workspace-scoped resources (content, playlists,
layouts, schedules, devices, widgets, kiosk) anywhere - but holds NO
owner-level power.
Design is deny-by-default: operator is NEVER added to PLATFORM_ROLES /
isPlatformRole, so every owner capability (billing, org/workspace
deletion, user/role management, shared & template asset curation,
branding, workspace member mgmt/rename) stays denied, and any NEW owner
endpoint added later inherits that denial automatically.
Operator gets power from exactly two levers:
- middleware/auth.js: new PLATFORM_STAFF set + isPlatformStaff(); owner
guards (PLATFORM_ROLES, requireAdmin, requireSuperAdmin) unchanged.
- tenancy.js: accessContext + resolveTenancy treat staff as act-as
capable; new req.isPlatformStaff / req.isPlatformOperator (req.isPlatformAdmin
stays owner-only); accessibleWorkspaceIds + switch-workspace guard use staff.
- permissions.js: canRead/canWrite + canAccessWorkspace (read) grant staff;
canAdmin / canAdminWorkspace / isOrgAdmin / isOrgOwner stay owner-gated.
Read-only edges (per review): operator may VIEW workspace member lists
(canAccessWorkspace) and the unassigned device pool (devices.js), but
cannot mutate either.
Frontend: platform role dropdown adds "Platform operator"; the user-mgmt
view stays isPlatformAdmin-gated so operators can't open it. EN i18n only.
Behaviour identical under HOSTED_INSTANCE set or unset.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Follow-up to 73f41c3 (server-side zone_id wiring). With this commit
the zone feature is verified working end-to-end: dashboard zone
picker renders correctly, zone_id saves and persists, the per-row
zone dropdown reflects the saved zone after reload, and a live
player run with computed-style inspection confirmed zone divs and
video elements size correctly within their geometry.
Frontend (device-detail.js, en.js):
- Add-content modal: zone picker slot now renders in all four states
(has_zones / no_layout / fetch_failed / empty_layout) instead of
silently vanishing when zones.length === 0. Informational rows
match form-group styling and tell the user which control to use
next. Closes the gate-4 symptom where 38-of-42 devices (no layout
assigned) silently dropped zone_id on every assignment.
- Both /api/layouts/:id fetches (add modal, edit-path) now have
!res.ok throw guards and surface failures via console.warn instead
of swallowing them. The add modal additionally exposes the failure
state to the user via the fetch_failed info row.
- Edit-path zone dropdown: replaced brittle DOM-scraping (reading
the i18n label text and matching z.id.slice(0,8) against rendered
meta HTML) with a data-current-zone-id attribute stashed at row
render from a.zone_id. Removes the i18n-format coupling and gives
exact UUID match.
- 3 new i18n keys in en.js (other locales fall back).
Server (devices.js):
- The GET /api/devices/:id assignments query had its own ad-hoc
SELECT projection that was missed during the 73f41c3 site survey.
Without pi.zone_id in this projection, loadDevice() got assignments
without zone_id and the edit-path dropdown displayed "No zone"
after every save+reload even though the DB had the correct value.
One-line fix: add pi.zone_id, mirroring the ITEM_SELECT change in
routes/assignments.js. Listed as the 8th site that 73f41c3's
original survey missed; this commit closes it.
Verification:
- JS parse + en.js ESM load + server module load all clean.
- Live SQL probe: GET /api/devices/:id projection now returns zone_id
for the test rows (id=31 zone_id=z-sh-1, id=54 zone_id=z-sh-2).
- Browser test by hand: zone picker renders per state, zone_id
persists, reload shows saved zone, computed styles on rendered
.zone divs match expected geometry.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Fix: at connect, enumerate the user's accessible workspace_ids (direct workspace_members + org_owner/admin paths + platform_admin 'all') via new accessibleWorkspaceIds() helper in lib/tenancy.js; socket.join one room per workspace. All 12 dashboardNs.emit sites across deviceSocket / heartbeat / server.js / devices route / video-walls route now route via dashboardNs.to(workspaceRoom(...)).emit() with the workspace looked up from the relevant device or wall. New lib/socket-rooms.js holds the helpers and breaks a circular dependency (dashboardSocket already requires heartbeat, so heartbeat can't require dashboardSocket).
Inbound 6 commands rewired to canActOnDevice(socket, deviceId, tier): request-screenshot is read tier (workspace_viewer+); remote-touch/key/start/stop and device-command are write tier (workspace_editor+). Platform_admin and org_owner/admin always pass via actingAs. Legacy admin/superadmin branch dropped.
Lifecycle note: workspace-switch already calls window.location.reload (Phase 3 switcher), which forces a fresh socket with updated memberships - no per-emit re-evaluation needed.
Smoke tested with 3 simultaneous socket.io-client connections (switcher-test, swninja, dw5304 platform_admin) + direct canActOnDevice invocation for 6 user/device/tier combinations. All 9 outbound isolation cells and all 6 permission gates pass. Fixture mutation: switcher-test's Field Crew membership flipped from workspace_editor to workspace_viewer to exercise the read/write tier split in one login.
Schema: add status and published_snapshot columns to playlists table.
Migration snapshots all existing playlists as published (idempotent via schema_migrations).
Devices always receive the published_snapshot, not live playlist_items.
Edits from device-detail/groups auto-publish immediately (display updates instantly).
Edits from playlist detail page go to draft (requires explicit publish).
POST /playlists/:id/publish snapshots and pushes to all devices.
POST /playlists/:id/discard reverts playlist_items from published snapshot.
Content deletion scrubs references from all published snapshots.
Frontend: draft badge in playlist list, prominent yellow banner with publish/discard
buttons on playlist detail and device detail pages.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
GET /:id now queries playlist_items via device.playlist_id.
DELETE no longer cleans up assignments table (playlist survives device deletion).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Filter out devices with no user_id from the main device listing
- Add GET /api/devices/unassigned endpoint (admin only) for unclaimed devices
- Add "Updating" section to README with upgrade instructions
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
ScreenTinker - open source digital signage management software.
MIT License, all features included, no license gates.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
