20375eceb9
Two related UX fixes, same state-machine surface: 1. Relay drops / goes offline / restarts: the client now auto- reconnects in the background instead of silently falling to "not registered" and requiring the user to tap Deregister + Register. 2. User switches relay in settings: client auto-swaps — close old transport, register against new, all transparent. ## Signal state additions (desktop/src-tauri/src/lib.rs) - `SignalState.desired_relay_addr: Option<String>` — what the user CURRENTLY wants. `Some(x)` means "keep me connected to x", `None` means "user explicitly asked for idle". This is the pivot that distinguishes "connection dropped, retry" from "user deregistered, stop". - `SignalState.reconnect_in_progress: bool` — single-flight guard so concurrent triggers (recv-loop exit + manual register_signal + another recv-loop exit after a brief success) don't spawn duplicate supervisors. ## Refactor The old `register_signal` Tauri command was doing the whole connect + Register + spawn-recv-loop flow inline. Split into: - `internal_deregister(signal_state, keep_desired)` — shared teardown helper that nulls out transport/endpoint/call state and optionally clears `desired_relay_addr`. - `do_register_signal(signal_state, app, relay)` — core connect + register + spawn-recv-loop flow, callable from both the Tauri command and the reconnect supervisor. Returns an explicit `impl Future<...> + Send` to avoid auto-trait inference bailing inside the tokio::spawn chain (rustc loses the Send trail through the recv-loop spawn inside the fn body). - `register_signal` Tauri command — now thin: if already registered to the same relay, no-op; otherwise internal_deregister(keep_desired=false), set desired_relay_addr = Some(new), call do_register_signal. The Rust side handles the "change of server" transition entirely on its own, no deregister+register dance from JS needed. - `deregister` Tauri command — internal_deregister(keep_desired = false) so the recv-loop exit path sees the cleared desired addr and does NOT spawn a supervisor. ## Reconnect supervisor New `signal_reconnect_supervisor(signal_state, app, relay)` task. Spawned from the recv-loop exit path when the loop exits unexpectedly AND `desired_relay_addr.is_some()` AND no supervisor is already running. - Exponential backoff: 1s, 2s, 4s, 8s, 15s, 30s (capped at 30s, never gives up). First attempt is immediate (attempt 0 skips the wait). - On each iteration checks whether `desired_relay_addr` was cleared (user deregistered mid-flight) or another path already re-registered; either short-circuits the supervisor. - Also detects if the user changed relays while the supervisor was sleeping — resets the backoff counter and retries against the new addr. - On success, exits so the newly-spawned recv loop owns the connection from that point. If THAT drops again, a fresh supervisor spawns. - Emits `call-debug-log` and `signal-event` events at every state transition so the GUI can display "reconnecting...", "registered" banners. ## UI wiring (desktop/src/main.ts) - signal-event handler gets two new cases: - `"reconnecting"` — amber "🔄 reconnecting to <relay>…" in the registered banner area - `"registered"` — green "✓ registered (<fp prefix>…)" to clear the reconnecting badge - Relay-selection click handler checks if a signal is currently registered and, if the user picked a different relay, fires `register_signal` with the new address. Rust side handles the swap transparently. Full workspace test: 423 passing (no regressions). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
WarzonePhone
Custom lossy VoIP protocol built in Rust. E2E encrypted, FEC-protected, adaptive quality, designed for hostile network conditions.
Quick Start
# Build
cargo build --release
# Run relay
./target/release/wzp-relay --listen 0.0.0.0:4433
# Send a test tone
./target/release/wzp-client --send-tone 5 relay-addr:4433
# Web bridge (browser calls)
./target/release/wzp-web --port 8080 --relay 127.0.0.1:4433 --tls
# Open https://localhost:8080/room-name in two browser tabs
Architecture
See docs/ARCHITECTURE.md for the full system architecture with Mermaid diagrams covering:
- System overview and data flow
- Crate dependency graph (8 crates)
- Wire formats (MediaHeader, MiniHeader, TrunkFrame, SignalMessage)
- Cryptographic handshake (X25519 + Ed25519 + ChaCha20-Poly1305)
- Identity model (BIP39 seed, featherChat compatible)
- Quality profiles (GOOD/DEGRADED/CATASTROPHIC)
- FEC protection (RaptorQ with interleaving)
- Adaptive jitter buffer (NetEq-inspired)
- Telemetry stack (Prometheus + Grafana)
- Deployment topology
Features
- 3 quality tiers: Opus 24k (28.8 kbps) / Opus 6k (9 kbps) / Codec2 1200 (2.4 kbps)
- RaptorQ FEC: Recovers from 20-100% packet loss depending on tier
- E2E encryption: ChaCha20-Poly1305 with X25519 key exchange
- Adaptive jitter buffer: EMA-based playout delay tracking
- Silence suppression: VAD + comfort noise (~50% bandwidth savings)
- ML noise removal: RNNoise (nnnoiseless pure Rust port)
- Mini-frames: 67% header compression for steady-state packets
- Trunking: Multiplex sessions into batched datagrams
- featherChat integration: Shared BIP39 identity, token auth, call signaling
- Prometheus metrics: Relay, web bridge, inter-relay probes
- Grafana dashboard: Pre-built JSON with 18 panels
Documentation
| Document | Description |
|---|---|
| ARCHITECTURE.md | Full system architecture with diagrams |
| TELEMETRY.md | Prometheus metrics specification |
| INTEGRATION_TASKS.md | featherChat integration tracker |
| WZP-FC-SHARED-CRATES.md | Shared crate strategy |
| grafana-dashboard.json | Importable Grafana dashboard |
Binaries
| Binary | Description |
|---|---|
wzp-relay |
Relay daemon (SFU room mode, forward mode, probes) |
wzp-client |
CLI client (send-tone, record, live mic, echo-test, drift-test, sweep) |
wzp-web |
Browser bridge (HTTPS + WebSocket + AudioWorklet) |
wzp-bench |
Component benchmarks |
Linux Build
./scripts/build-linux.sh --prepare # Create Hetzner VM + install deps
./scripts/build-linux.sh --build # Build release binaries
./scripts/build-linux.sh --transfer # Download to target/linux-x86_64/
./scripts/build-linux.sh --destroy # Delete VM
Tests
cargo test --workspace # 272 tests
License
MIT OR Apache-2.0