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adebisi-fa 8a13fb527e docs(openspec): archive fingerprint-token-auth after the production pass

The wizard's a2loft calls now authenticate with the session token and carry no
OTP. Field pass in production: the lookup and both fingerprint saves succeeded
with no OTP, so task 3.2 is done. Merged the fingerprint-wizard and tools-app
deltas into the main specs and archived the change.

2026-10-06 19:19:29 +01:00

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Design

Context

See proposal.md for motivation. The wizard already holds the PocketBase token in the page (window.__SESSION__.token) for fpagent enrollment, and the cropper's save already sends Authorization: Bearer ${req.session.token} to a2loft through its own proxy (tools/cropper.js). The two remaining OTP calls are the wizard's staff-lookup and fingerprint-save proxies in tools/server.js; their handlers receive the a2loft URL from a2loftUrl/a2loftSaveUrl, which currently append phone+otp, and validateProxy rejects a missing otp.

Goals / Non-Goals

Goals: both wizard a2loft calls use the session token; no OTP in the wizard; proxy validation keeps rejecting unauthenticated calls; deployable after the a2loft change with a clean rollback.

Non-Goals: fpagent capture (already carries the token); the cropper; a2loft's own OTP compatibility; the legacy singular fingerprint endpoint.

Decisions

Bearer from the server session, never the browser: the proxy attaches Authorization: Bearer ${req.session.token}, mirroring tools/cropper.js. The page's token copy stays for fpagent only.
Drop the OTP check in validateProxy, along with the now-unnecessary phone check; keep the hardcoded-domain and reference checks. requireApi already guarantees a session.
Remove the OTP inputs and state rather than hiding them; canLookup/canSave no longer require an OTP.

Risks / Trade-offs

[a2loft not yet dual-mode] → deploy the a2loft change first; this proxy change depends on it.
[Operators outside a domain's uploader list can now enroll] → intended; a2loft authorizes capture_biometric with the domain:idid fallback.
[Rollback] → revert the proxy and re-add the OTP fields; a2loft stays dual-mode.

Migration Plan

Deploy a2loft dual-mode → deploy this app → field pass: look up a reference and save both fingerprints with no OTP; a bogus-token call fails cleanly.

Open Questions

None.

2.0 KiB Raw Blame History