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`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 <noreply@anthropic.com>
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Phase 11.5.A — findings C1 and C6 (see second-review.md).
C1: the per-group HTTP file API bound 0.0.0.0 for every configured group,
private ones included, and served two endpoints with no authentication at all:
GET /index (full Mesh Group Index) and GET /file/{id} (raw plaintext file via
FileResponse). Anyone able to reach the port — LAN, forwarded port, permissive
IPv6 — read every private file. This bypassed the entire GEK-proof and node
sovereignty layer. Deleted rather than patched: it duplicated MNP without any
of its controls.
C6: the TCP+TLS chunk server accepted a bare JWT with no GEK proof, leaving a
second non-compliant handshake path. Deleted; QUIC remains and will be brought
to parity with WebRTC by the unified handshake in 11.5.4.
Transport decision recorded in transport/__init__.py: WebRTC/ICE is primary for
browser and native clients (the only NAT traversal validated here — 2 ISPs,
IPv4 STUN + IPv6, 4G CGNAT); QUIC is kept for LAN, port-forwarded and hub-less
group:// access. punch_nat() is a direct-connection helper, not a traversal
stack.
Also removed server_ssl_context()/client_ssl_context() from tls_cert.py (no
remaining callers) and a dead import of the former in quic_server.py.
generate_self_signed_cert() stays: QUIC uses it, and the certificate hash is
the intended channel-binding anchor for 11.5.6, since QUIC has no DTLS
fingerprint to bind the GEK proof to.
BREAKING CHANGE: node.toml keys `port` and `http_port` are gone. Regenerate
config with `meshbay-node init`. Env var MESHBAY_PORT -> MESHBAY_QUIC_PORT.
Tests: 198 passed (209 - 7 test_http_server - 4 test_transport). No other test
changed status. Net -1300 lines.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Browser clients can now connect P2P to nodes behind residential NAT via
WebRTC DataChannel with ICE/STUN. Validated on SFR Port-Restricted Cone
NAT + 4G CGNAT across three scenarios (WiFi LAN, 4G IPv6, 4G IPv4 STUN).
No TURN relay needed. Hub serves only as signaling relay (<1 KB).
New files:
- webrtc_server.py: aiortc-based WebRTC transport (node side)
- signaling.py: SDP/ICE relay endpoint (hub side)
- transport.js: browser WebRTC client with msgpack framing
- webrtc-test.html: spike test page for browser→NAT→node validation
- test_webrtc_transport.py: 4 tests (handshake, file transfer, auth, guard)
- meshbay-draft-v4.md: architecture spec updated for web client
Modified:
- hub_client.py: WebRTC offer handling via hub WebSocket
- revocation.py: node_id from WS auth + webrtc_answer routing
- pyproject.toml: aiortc>=1.9 dependency
123 tests passing (117 existing + 6 new).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Implements all 8 milestones (7.0-7.7):
- 7.0: JWT carries `groups` claim; node verifies group membership at
MNP handshake (QUIC + TCP+TLS). Resolves security review C2.
- 7.1: QUIC 0-RTT session resumption via stored session tickets
(17-21ms reconnect vs 47ms cold).
- 7.2: Hub→node WebSocket signaling for NAT punch coordination
(`client_incoming`/`punch_ready`) + jti denylist push. Denylist
class blocks revoked users/jtis at handshake.
- 7.3: Multi-group daemon — one QUIC port serves N groups with
per-group GEK, shared_root, and index routing.
- 7.4: HLS streaming via QUIC (STREAM_SEGMENT message type, ffmpeg
segment extraction).
- 7.5: Sender Keys protocol for group chat (Signal Groups approach).
Each member has own sending chain key, HKDF chain ratchet, AES-256-GCM
encryption, Ed25519 signing. Resolves security review C1.
- 7.6: Chat store (SQLite via aiosqlite), CHAT_MESSAGE MNP wire type
with peer broadcast, web UI with WebSocket push.
- 7.7: Argon2id calibration CLI.
First security review included (first-review.md). 109 tests, demo-v3
validated against meshbay.org production hub.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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meshbay-node/pyproject.toml: add aioquic>=1.0 (was commented 'v2'),
websockets>=12.0 (revocation push). Both are production code since Phase 5.
meshbay-hub/pyproject.toml: add aiosqlite (tests without PostgreSQL),
slowapi (rate limiting), websockets (revocation push), PyJWT (explicit).
transport/__init__.py: QUIC imports wrapped in try/except — node works
without aioquic (TCP+TLS + HTTP fallback). QUIC_AVAILABLE flag exported.
QUICKSTART.md: replace manual pip list with 'pip install -e' that pulls
all deps from pyproject.toml automatically. Add dependency table.
CLAUDE.md: clarify that all deps go in pyproject.toml, not manual installs.
81/81 tests.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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QuicChunkServer/QuicChunkClient: same MNP protocol over QUIC/UDP.
Enables hole-punching (Spike 4 Cone NAT validated). Uses aioquic 1.3.0.
Bug found+fixed: asyncio.Event race condition in client recv loop
(quic_event_received overwrote _stream_events[0] after _recv
created it). Fixed with asyncio.Queue (no shared mutable state).
Server uses synchronous handlers in quic_event_received (avoids
ensure_future transmit timing issue). 3/3 tests. Full suite: 50/50.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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FastAPI app on port 19001: GET / (node info), GET /index (public
group index JSON), GET /file/{id} (full download), GET /file/{id}/{n}
(encrypted or plaintext chunk), GET /hls/{id}/playlist.m3u8 +
GET /hls/{id}/{n}.ts (HLS streaming via ffmpeg).
Public groups: index browsable without auth, files downloadable.
Private groups: chunks encrypted with GEK, auth required.
7/7 tests passing. Full suite: 47/47.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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Self-signed TLS cert (RSA-2048, TLS 1.3 min). Server: JWT offline
verify, index sync, file_request → encrypt+sign chunk pipeline.
Client: handshake, fetch_index, fetch_chunk with Ed25519 verify +
blake3 hash check + GEK decrypt. Integration test: 2MB file served
in 2 chunks, reassembled == original. 3/3 tests. Full suite: 29/29.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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3-package layout: meshbay-common (shared crypto/protocol),
meshbay-hub (FastAPI server), meshbay-node (local daemon).
Includes validated POC spikes 1-6 in poc/, architecture drafts
v1/v2 in docs/, and CLAUDE.md project conventions.
All cryptographic primitives extracted from POC into
meshbay_common/crypto.py (GEK wrap/unwrap, chunk key derivation,
keystore encryption, chunk signing).
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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