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A node could be running, healthy in its own logs, and invisible to the hub with
nothing to say why. That is what "No nodes available" looked like from a browser,
and restarting the daemon was the only way out.
maintain_ws awaited the WebRTC offer handler inline, inside the loop that reads
the hub socket. One negotiation that did not finish — a client that closed its
tab mid-ICE is enough — stopped the node reading that socket at all: pings
unanswered, close frame never seen, later offers never served. The socket sat in
CLOSE-WAIT with the hub's goodbye unread in the receive queue, which is how this
was finally pinned down.
Offers are now answered in their own task, so the read loop keeps draining
whatever happens to any one peer. With that in place the existing reconnect logic
works: a hub restart is seen (1012), retried through the 502 while it comes back
up, and reconnected unattended — 19 seconds in the run that verified this.
Also:
- explicit ping_interval/ping_timeout. This connection is how a node stays
reachable, and a half-open socket looks exactly like a working one.
- a clean close ended `async for` without raising and reconnected in silence;
it now says so, because a node that stops being reachable should leave a trace.
- a failed negotiation logs the peer instead of taking the loop down with it.
Predates this branch (Phase 11), and independent of the invite work — surfaced
while testing it, because deploying the hub mid-session is exactly the trigger.
Tests: 232 node+common, plus the full QE/deploy/e2e.py run against the live
deployment after a deliberate hub restart.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Phase 11.5.10.
POST /v1/nodes/announce accepted any pk_node with no proof the announcer held
the matching private key, so a user could register a node record carrying
someone else's node key, and records accumulated without limit.
The announcer now signs a domain-separated message binding the key to their
account — meshbay:node_announce:{user_id}:{pk_node}:{timestamp} — reusing the
shape already proven by /v1/nodes/auth, so a signature for one can never
satisfy the other. Same 60-second window.
Re-announcing the same key now updates the existing record in place instead of
creating a new row.
Three test helpers had to be taught to sign, which is the useful part: nothing
in the suite had ever exercised announce with an attacker's key. The new tests
cover the missing proof, a foreign key, a stale timestamp, and idempotence.
Note for the record: the node key is independent of the user's identity key.
Two hub tests asserted the announced pk_node equalled the user's pk_ed, which
happened to be true only because the daemon announces its keystore key. They
now assert against the announced key itself.
Tests: 157 hub+common, node suite green.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Baseline commit capturing in-progress Phase 12 work that was already present
in the working tree (uncommitted) before the Phase 11.5 security remediation
begins. Committed as-is, without review or modification, so that remediation
changes arrive as a separable diff.
Contents: BundleStore (P2P GEK + keypair bundles), password split
(auth_key / bundle_key), node Ed25519 auth (POST /v1/nodes/auth, node-scoped
JWT), GEK-HMAC handshake proof with DTLS channel binding, Ed25519 admin
challenge-response, node local admin UI rewrite, browser key persistence.
Not authored in this session — captured to establish a baseline.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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When watchdog detects file changes, the daemon now:
- Pushes INDEX_SYNC to all connected WebRTC peers in that group
- Registers file hashes with hub /v1/swarm/register endpoint
Also registers all file hashes on startup for initial discovery.
hub_client: add register_swarm() method for bulk hash registration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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The node daemon was previously a skeleton that only started QUIC/TCP
servers and the local web UI. All browser-facing functionality (WebRTC,
hub WebSocket, chat store, HTTP file API) lived in QE demo scripts.
This rewrites daemon.py to be fully self-contained:
- WebRTC transport for browser clients (aiortc DataChannel)
- Hub WebSocket task (signaling, revocations, WebRTC offers)
- ChatStore per group (SQLite in ~/.local/share/meshbay/)
- HTTP file API per group (create_http_app on configured port)
- Graceful shutdown (all transports, stores, tasks)
- hub_client: _ws tracking + send_ws() for chat notifications
- config: data_dir field for persistent state
- systemd: security hardening (ProtectSystem, StateDirectory)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Complete browser-based client: Preact SPA with login, group file browser,
encrypted download, video playback, group chat, i18n, and dark/light theme.
Browser connects P2P to nodes behind residential NAT via WebRTC DataChannel
(aiortc). Hub handles signaling only — all data flows E2E.
Performance: pipelined downloads (8-chunk sliding window), binary msgpack
wire format (no base64), redundant I/O elimination. Large file downloads
stream to disk via File System Access API (showSaveFilePicker).
Validated on SFR + Orange residential NATs, Chrome + Firefox, IPv4/IPv6.
132 tests passing. Deployed to meshbay.org + Orange node.
Co-Authored-By: Claude Opus 4.6 <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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Register/login/announce/token-refresh/GEK-unwrap. JWT jti and
pk_user verified at login. Hub PK cached after first fetch.
6/6 tests passing with httpx.MockTransport (no network).
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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