The people who actually take USB drives are standing at the cabinet, and most of them have no account here. Check-out and check-in were gated behind a login that was not doing much anyway: both modes already attribute the action to a scanned BADGE rather than to the signed-in user, so the login was gating the screen, not the record. /usb-kiosk is a full-screen touch page modelled on the parts kiosk, off unless a site sets usb_kiosk_enabled - every route 404s until then, rather than 403, so a disabled kiosk does not advertise that there is a door here. It works against the self-hosted tables or an existing cmmc_usb database. THE LIST IS THE TRADE. These drives carry no barcode, so unlike the parts kiosk there is nothing to present and the screen has to offer a list - which exposes more than a scan-first design, where you had to already hold a drive to learn anything. So the list is not anonymous: an SSO comes first and must resolve to a real person before any drive is named, which is the same bar taking a drive already had to clear. It is a POST so the badge stays out of proxy access logs. The main screen shows the caller's own drives, what is free, and a COUNT of everything else; holders of other people's drives appear only behind a second deliberate tap, so nobody reads the whole cabinet off a wall panel in passing. A badge that resolves to no employee is REFUSED, unlike the signed-in route which creates the user row. A checkout nobody can trace to a person defeats the tracking, and at a kiosk there is no operator standing there to vouch for it. Returning somebody else's drive asks first and then records the badge that was SCANNED, so the log says who actually handed it back. That is the honest record and it needs no change to a schema this app does not own. Refusing a mismatch outright is a setting but not the default: a drive left behind by somebody on leave would otherwise be unreturnable at the kiosk, which just moves the problem to a person with a login. The authz sweep caught these writes, twice - once for the two mutations and again for the two list endpoints. Both are exempted with the reasoning written out beside the parts-kiosk entry rather than silenced. The list endpoints are POSTs that change nothing. Verified by driving the real page: SSO on the keypad, tap Take, database moves.
USB plugin - CMMC USB check-in/out database contract
The USB plugin tracks removable-media check-in/out for CMMC compliance. Device
and log state live in a separate, read-write MySQL database (cmmc_usb),
reached with parameterized pymysql via cmmc_usb_connection(). Names of people
are resolved from the HR employee directory (see the employees plugin).
The plugin's own reference tables (usbdevicetypes, usbdevices,
usbcheckouts) live in the main app database; only the live check-in/out data
is in cmmc_usb.
The schema is standardized across sites - the
cmmc_usbcheck-in/out solution is the same deployment everywhere, so the tables below match as-is and no schema adaptation is needed. The database name may differ per site, though - setcmmc_usb_db_name(defaultcmmc_usb) to match the local name. The view recipe at the end is only a fallback for a site that somehow differs. (Contrast the employee directory, which genuinely varies per site.)
Connection
Credentials resolve settings-first, then environment, except the password which is env-only (never stored in the app database).
| Field | Setting key (editable in the setup wizard) | Env var (fallback) |
|---|---|---|
| Host | cmmc_usb_db_host |
CMMC_USB_DB_HOST |
| Database | cmmc_usb_db_name |
CMMC_USB_DB_NAME |
| User | cmmc_usb_db_user |
CMMC_USB_DB_USER |
| Password | (not stored) | CMMC_USB_DB_PASSWORD |
Set the password in .env; the setup wizard's Features step shows the exact
line to paste. This database is read-write - the app account needs
SELECT, INSERT, UPDATE. Engine is MySQL/MariaDB (pymysql).
Required schema
The plugin runs raw SQL against these tables (or views - see below).
devices
| Column | Type | Notes |
|---|---|---|
device_id |
VARCHAR | Primary key; the device serial/tag |
device_desc |
VARCHAR | Description |
device_owner |
VARCHAR | Owner |
status |
VARCHAR | Check-in/out state |
locker_location |
VARCHAR | Where the device is stored |
Operations: SELECT (list + by id), INSERT (register device), UPDATE
(edit fields, change status).
checkinoutlog
| Column | Type | Notes |
|---|---|---|
log_id |
INT (PK) | Auto id |
badge_number |
VARCHAR | Person's badge |
device_id |
VARCHAR | FK to devices.device_id |
action |
VARCHAR | check-in / check-out |
timestamp |
DATETIME | When it happened |
scanned_viruses |
(text/int) | Scan result |
locker_location |
VARCHAR | Locker at time of event |
sanitized |
(bool/int) | Sanitization flag |
Operations: SELECT (history per device), INSERT (log an event).
users
| Column | Type | Notes |
|---|---|---|
badge_number |
VARCHAR | Primary key; the scanned badge |
first_name |
VARCHAR | Given name |
last_name |
VARCHAR | Surname |
Operations: SELECT by badge, INSERT (auto-add a badge on first scan).
Employee directory dependency
To turn a scanned badge into a name, the plugin also reads the HR employees
directory (via the employees plugin's connection). A badge shaped 0<digits>BZ
carries a PayNo (the digits); lookups try employees.SSO and employees.PayNo.
See plugins/employees/README.md for that schema and connection.
Adapting a different site schema (recommended: views)
Sites whose USB-tracking database uses different table/column names should
create read-only/updatable views named devices, checkinoutlog, and
users that map local columns to the names above. Example:
CREATE VIEW devices AS
SELECT
asset_tag AS device_id,
description AS device_desc,
owner AS device_owner,
state AS status,
storage_bay AS locker_location
FROM usb_assets;
Because the plugin writes to devices/checkinoutlog/users, either make the
views updatable (single-table views usually are) or expose real tables with
these column names. Grant the app account SELECT, INSERT, UPDATE.
Notes:
device_idandbadge_numberare the natural keys the plugin matches on.- If
cmmc_usbis unreachable, USB endpoints return an error and the rest of the app keeps working (the feature degrades, it does not crash the app).