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neuron-tai/.scratch/alpha-hardening/issues/02-a2-unified-auth-boundary.md
Dobromir Popov 81719ed84b feat(tracker): unified auth boundary — gossip HMAC + validator token + admin-gated reads (alpha 01/02/20, ADR-0017)
Wire server.py handlers to the auth helper: forfeit requires validator
service token or admin session (client API keys rejected); billing summary/
settlements/registry-wallets and benchmark endpoints require admin/service;
the three gossip mutation endpoints require a fresh hive HMAC signature and
outgoing gossip pushes are signed. Dashboard sends its session token on
panel fetches. Existing tests updated for the new gates.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-05 00:08:25 +02:00

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Status: done
# 02 — A2: Unified auth boundary for privileged and financial reads
## What to build
Replace header-presence stubs with a single auth middleware that resolves API keys, admin sessions, validator service tokens, and hive peer identity. Close leaks on financial and operator endpoints. This is the auth foundation issue; issue 01 should only apply hive auth to gossip endpoints once the helper exists.
**Code refs:**
- `packages/tracker/meshnet_tracker/server.py``_handle_billing_forfeit` (~24292464) — H3: non-empty `Authorization` only
- `packages/tracker/meshnet_tracker/server.py``_handle_benchmark_hop_penalty` (~26502658), `_handle_benchmark_results` (~27452748) — H3
- `packages/tracker/meshnet_tracker/server.py``_handle_billing_summary` (~23662371) — H4
- `packages/tracker/meshnet_tracker/server.py``_handle_billing_settlements` (~24072412) — H4
- `packages/tracker/meshnet_tracker/server.py``_handle_registry_wallets` (~23912405) — H4
- `packages/tracker/meshnet_tracker/server.py``_session_account` (~2468+), `_handle_admin_accounts` (~25882608) — H4
- `packages/tracker/meshnet_tracker/accounts.py``session_account()`, `create_session()` only (session store; not handler wiring)
Per ADR-0017 §4: forfeit → validator or admin; benchmark → admin; billing summary/settlements/registry wallets → admin session. Include the validator service token shape from `20-validator-service-token.md` in the same implementation if practical.
## Test-first
1. Red: POST `/v1/billing/forfeit` with `Authorization: Bearer garbage` succeeds today — must require validator/admin identity.
2. Red: GET `/v1/billing/summary` without admin session returns 401/403.
3. Green: middleware + role checks; existing inference API-key path unchanged.
## Acceptance criteria
- [ ] Single `_require_auth(role=...)` (or equivalent) used by all privileged handlers
- [ ] Shared auth config supports admin sessions, validator service token, and hive peer HMAC/mTLS
- [ ] Forfeit accepts only validator service token or admin session — not arbitrary Bearer strings
- [ ] Financial read endpoints require admin session (alpha posture)
- [ ] Benchmark write/read require admin or service token
- [ ] Integration tests for each endpoint class (reject unauth, accept valid)
## ADR links
- [ADR-0017](../../docs/adr/0017-tracker-authentication-and-authorization.md)
## Related
- `20-validator-service-token.md` — checklist for validator service token format, rotation, forfeit auth
## Blocked by
None. This issue should land before `01-c1-gossip-auth.md`.