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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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Add SQLite audit store for legal compliance (LCEN/DSA): logs user IP,
actions (handshake, file download/upload/delete, stream, chat), and
timestamps. Retention: 1 year, with cleanup method.
WebRTC transport now logs all user actions to the audit store with
remote IP extraction from the ICE transport.
Local web UI rewritten as a proper admin dashboard:
- Stats cards (groups, files, peers)
- Connected peers table with IP, username, group, state
- Group cards with file listings and shared directory info
- Audit log page with event/user filtering
- Dark theme, responsive, auto-refresh
- JSON API: /api/status, /api/groups, /api/peers, /api/audit, /api/config
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Replace download-then-play VideoPlayer with MSE (MediaSource Extensions)
streaming. Node remuxes to fMP4 via ffmpeg, probes codecs with ffprobe,
and sends encrypted segments over DataChannel. Browser decrypts and
appends to SourceBuffer — playback starts within seconds.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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inline thumbnails
Backend:
- Chat store persists sender_name (SQLite migration, no more UUID display)
- FILE_DELETE / FILE_DELETE_ACK MNP types — node admin can delete files
- Node sends chat_notify to hub WS — hub creates notifications for offline members
- Hub revocation.py handles chat_notify, creates per-member notifications
Frontend:
- Upload chunk size 64KB (was 1MB) — fixes WebRTC DataChannel max-message-size
- Show cached files immediately while WebRTC connects
- ChatImage component — inline image thumbnails in chat (download+decrypt)
- File delete action in menu (group admin, with confirm dialog)
- Member panel: "Owner" label instead of confusing "Group admin"
- Create group page: hint about needing a node
- Refresh index after chat attachment upload
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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inline thumbnails
- Upload chunks capped at 64KB to avoid WebRTC DataChannel max-message-size
- Show cached files immediately while WebRTC connects (tabs visible during connection)
- Persist sender_name in chat store (SQLite) — no more UUID display in history
- File delete action in menu (node admin only, enforced server-side)
- FILE_DELETE / FILE_DELETE_ACK MNP message types
- Inline image thumbnails in chat attachments (download+decrypt, Signal-style)
- Member panel: "Owner" label instead of "Group admin" to avoid hub/group admin confusion
- Create group page: hint about needing a node
- Refresh index after chat file attachment upload
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Concurrent peer disconnects could mutate _peers/_sessions during
iteration, causing RuntimeError: dictionary changed size during iteration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Bug fixes:
- Group creation "[object Object]" error: removed dead pkcs8 import code
that threw before GEK wrapping, added array detail handling in hubFetch
- Chat shows usernames instead of UUIDs (sender_name passed through node)
- Join button: navigate to group on "Already a member" instead of error
UI improvements:
- Loading spinner animation for async states (connecting, fetching)
- File action menu (3-dot dropdown: View, Download, Play)
- Click filename to preview inline (images, text/code files)
- FilePreview overlay for images and text files
- Chat file attachment button (upload to node + structured message)
- Chat attachment display (icon, filename, size)
- Member panel: "Group admin" badge instead of plain "Admin" text
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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search)
Six self-service features for the web SPA:
- Group creation UI with GEK auto-generation (AES-256-GCM ECIES)
- Member management + invite by username (GEK wrapping for invitee)
- Open group self-join flow (POST /v1/groups/{id}/join)
- File upload client→node (FILE_UPLOAD MNP type, .uploads/ staging)
- IndexedDB caching of group file indexes (instant display on revisit)
- Cross-group file search (SearchPage, pure client-side on cached indexes)
11 new tests (166 total): 8 group self-service + 3 AES GEK wrap/unwrap.
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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SFR residential NAT is Port-Restricted Cone: inbound is only allowed
from (peer_ip, peer_port) if the node previously sent a packet TO
(peer_ip, peer_port) from the SAME socket.
punch_nat(peer_ip, peer_port): sends a probe UDP packet from the
QUIC server's own transport (_transport.sendto), creating the correct
NAT entry. Used after server.start() to enable direct QUIC connections
through SFR NAT without UPnP or relay.
demo-v2 result: QUIC/UDP direct Fedora→SFR NAT→meshbay.org validated.
Connection time 12.7s (QUIC handshake through NAT). File transfer 700B.
QuicChunkClient local_port param: ensures client binds to same port
as punch_nat destination (Port-Restricted Cone requirement).
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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local_port=0 param on QuicChunkClient — specify for Port-Restricted Cone NAT
hole punching (client must send from the same port the node probed to).
QuicChunkServer default host '::' for IPv4+IPv6 dual-stack on Linux.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <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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