Files
shopdb-flask/docs/GE-ENFORCE-DISPLAY.md
cproudlock 75386d2f51 geenforce: resource-scope binding for fetch tokens (0.15.0)
A geenforce.fetch token can now be pinned to specific manifest scopes so a
fleet-wide key (a display's, delivered by DSC or baked into the image) is not a
skeleton key for the whole content store. NULL binding = unrestricted, so every
existing service token keeps working.

Core:
- ApiToken.resourcescopes column + resourcescopelist property (migration
  7d30_apitoken_resourcescopes; NULL = unrestricted).
- apitokens API create/update accept + persist an optional resourcescopes list
  (a resource-name allowlist; not permission-catalog names).
- New contract helper authorized_service_token(scope): same check as
  service_token_authorized but returns the ApiToken so a plugin can read its
  binding. Contract 0.14.0 -> 0.15.0; also export SupportTeam.

GE-Enforce enforcement:
- get_manifest: a bound token requesting a scope outside its allowlist -> 403.
- get_payload: a bound token may only pull a blob its own scope(s) reference
  (service.blob_referenced_by_scopes); anything else -> 404 (no hash probing).
- Decorator stashes the authorized token on g for the route to read.

Also fixes a pre-existing contract-surface violation: the printers/printedparts
alert helpers imported shopdb.core.models / shopdb.extensions directly; now
via shopdb.api (SupportTeam newly exported). Docs: GE-ENFORCE-DISPLAY.md
provisioning note, PLUGIN-HOOKS.md, CLAUDE.md.

9 new resource-binding tests; full suite 1131 passing.
2026-07-23 09:02:42 -04:00

91 lines
4.6 KiB
Markdown

# GE-Enforce: the gea-shopfloor-display scope
Displays are the share-less corner of the fleet. They are Entra-joined,
credential-less kiosk PCs that pull their manifest over HTTPS on port 443 and
authenticate with a read-only service PAT scoped `geenforce.fetch`, sent as
`X-API-Key`. They have no SMB share mount. The kiosk engine and the kiosk
browser are baked into the display image, not shipped over HTTPS, so the display
manifest heals POLICY / CONFIG drift only, never EXEs. It is self-sufficient and
does not inherit the fleet-wide `common` scope (see below).
## The display fetch token MUST be resource-bound
The same read-only key ships to every display (delivered by DSC, or baked into
the image), so it must not be a skeleton key for the whole content store. Mint
the display token bound to just this scope, so a leak cannot pull any other
scope's manifest or any blob by hash:
```
POST /api/apitokens
{ "name": "display fetch", "scopes": ["geenforce.fetch"],
"resourcescopes": ["gea-shopfloor-display"] }
```
With `resourcescopes` set, `GET /manifest?pctype=<other>` returns 403 and
`GET /payload/<sha>` returns 404 for any blob the display scope does not
reference. `resourcescopes` NULL (unset) = unrestricted, for back-compat with
existing service tokens. Rotate by minting a new bound token and revoking the
old one (deactivate it server-side); DSC re-delivers, or re-image.
There are three display subtypes, selected by `C:\Enrollment\display-type.txt`:
`Dashboard`, `Lobby`, and `3DPrintRoom`.
## Authoring the scope
The scope is authored programmatically by
`plugins/geenforce/seed_display_scope.py`, which builds a manifest dict and
hands it to `service.replace_scope_draft` (the same call the `import-share` CLI
uses), then attaches the inline dispatcher payload. From a Flask app context:
```python
from plugins.geenforce.seed_display_scope import seed_display_scope
seed_display_scope(publish=True) # publish=False leaves it as a draft
```
`replace_scope_draft` is an idempotent draft rebuild. `publish=True` additionally
freezes an immutable published snapshot (that step is not idempotent: it always
creates a new version).
### What the scope contains
1. Four `Registry` drift-heal entries that re-assert the Microsoft Edge kiosk
relaunch policies set at imaging by `09-Setup-Display.ps1`. Each writes the
value and detects drift with `DetectionMethod = ValueMatches` against the
same path/name, so a display that loses a policy self-heals on the next
enforce cycle with no keyboard or mouse on site:
- `RelaunchNotification = 2` (DWord, Required auto-restart)
- `RelaunchNotificationPeriod = 3600000` (DWord, 1 hour)
- `RelaunchHeadsUpPeriod = 60000` (DWord, 1 minute)
- `RelaunchWindow` (String, JSON, 02:00 start, 120 minute duration)
2. One `PS1` dispatcher, delivered inline over HTTPS. It reads
`C:\Enrollment\display-type.txt` and launches the kiosk target for the
subtype. The subtype -> route map is a data-driven table
(`DISPLAY_TYPE_TARGETS`) at the top of both the seed module and the generated
script, so targets are easy to edit. `DetectionMethod = Always` so it
re-asserts each cycle, but the script is idempotent (it skips relaunch if a
kiosk process is already serving the target URL).
### display-type -> target map
| display-type.txt | kiosk route | notes |
| --- | --- | --- |
| `Dashboard` | `/shopfloor` | core ShopfloorDashboard, standalone full-screen |
| `Lobby` | `/tv` | slides plugin TV dashboard (surface `lobby`) |
| `3DPrintRoom` | `/parts-kiosk` | **PLACEHOLDER, TODO-confirm** printedparts parts kiosk route; confirm the real 3D-print-room target with the floor team before publishing to production displays |
## Self-sufficient: displays do NOT inherit common
The `gea-shopfloor-display` scope carries everything a display enforces. It does
NOT inherit the fleet-wide `common` scope. Displays run the enforcer with
common-merge off (the client default; common-merge is opt-in via
`Invoke-ShopdbEnforce.ps1 -IncludeCommon`), so `common`'s SMB-backed fleet
entries (Adobe, Oracle, OpenText, Defect Tracker, EventSaver, printer map,
self-update, asset-reporting, ...) never reach a share-less display.
This was a deliberate decision: a display needs none of common's software, and
inheriting common would have forced repackaging every SMB `common` payload as
`http`/`inline` for a share-less box. Keeping the display scope self-sufficient
avoids all of that. If a future non-display share-less PC genuinely needs the
fleet-wide entries, that is what `-IncludeCommon` plus a per-entry SMB->http
payload conversion would be for -- but displays do not use it.