meshbay.git/packages/meshbay-hub/src/meshbay_hub/csam.py, branch main

style: the 98 ruff could not fix, so the linter is a signal again

2026-09-19T12:39:38Z

The pass before this applied ruff's own fixes. These are the ones needing a decision, and the point of doing them is that `ruff check .` now passes: a linter reporting 98 known-acceptable findings reports nothing, because the next real one arrives invisible. **Lines over 100 (70).** Mostly wrapped where they stood. Two exceptions: the aligned trailing comments in `protocol.py`'s message table were shortened rather than wrapped, because wrapping one row of a table breaks the table; and in `models.py` the column comments moved above their columns for the same reason. **Imports below the first statement (14).** `csam.py` kept its FastAPI imports under a section header halfway down the file; two node tests had a constant and a `pytestmark` wedged between two import blocks. Moved, not suppressed. **Bindings nothing reads (4).** Three in tests, where the call stays and only the name goes — `_user(client, "listener")` is there to create the user, not to return one. The fourth was in `revocation.py` and was not a lint finding at all: `_connect_and_listen` opened an httpx stream to the WebSocket URL, did `pass`, and then opened the real connection through the `websockets` library. One pointless request per connect, left over from before that library was used directly. Removed, and `httpx` with it. **`l` as a name (4)**, **semicolons (6)** in the POC spikes, and the rest. 2893 passed, the same count as the two commits before it. `meshbay_node/revocation.py` is worth a decision separately: 154 lines that nothing imports, superseded by `hub_client.maintain_ws`'s `on_revocation`. This commit only stopped it failing the linter. Co-Authored-By: Claude Opus 5

style: ruff's own fixes, mechanically applied

2026-09-19T12:24:13Z

`ruff check .` had gone unrun long enough to report 568 errors, which is the same as having no linter: the next real finding would have been invisible in the noise. This is the 521 it fixes by itself, in 173 files, and nothing else — the 98 it cannot fix are the next commit. What actually changed: import sorting (225), imports nobody used (87, none of them a re-export — no `__init__.py` is touched, which was the one way this could have broken an import elsewhere), `datetime.timezone.utc` to `datetime.UTC` (69) and `asyncio.TimeoutError` to `TimeoutError` (18), both plain aliases on the 3.12 this project requires, `Optional[X]` to `X | None` (24), and f-strings with nothing to interpolate (19). Checked rather than assumed: every module in the three packages still imports, and the suite is 2893 passed — the same count, test for test, as the merge before it. Co-Authored-By: Claude Opus 5

feat(hub): Phase 8 — Hub v2 security hardening + production readiness

2026-08-10T01:57:55Z

8.1 Config-based admin authz (require_admin on all admin endpoints) 8.2 Email encrypted at rest (AES-256-GCM, HKDF from hub Ed25519 key) 8.3 Refresh token rotation with family-based reuse detection 8.4 Federation persistence (HubPeer model replaces in-memory dict) 8.5 Federation token verification now async (DB-backed) 8.6 CSAM hash check wired into swarm registration flow 8.7 Rate limiting on auth endpoints (5/10/20 per minute) 8.8 Healthcheck endpoint (GET /v1/health, no auth) 8.9 IP log cleanup background task (365-day retention) 8.10 Argon2id params bumped to 256 MB (pw_version, rehash on login) Deployed to meshbay.org — schema migrated, existing emails encrypted. 117 tests pass (29 hub, 88 common+node). Resolves security review items S1, S2, S5. Co-Authored-By: Claude Opus 4.6

feat(hub): add CSAM hash matching module — 5.8

2026-08-09T03:21:43Z

CSAMChecker: loads blake3 hash database from file (NCMEC/IWF format). check_content_hash(): used before serving public content. /v1/admin/csam/status: hash count + DB path. /v1/admin/csam/check: admin-only hash check (no hash logged). Hash database NOT included — hub operators must obtain access from NCMEC (US) or IWF (EU). Instructions in csam.py header. 59/59 tests. Co-Authored-By: Claude Sonnet 4.6 (1M context)