2c71d9c5c6
- Browser mode auto-rejoins saved network on reload (waste_last_network) - Logout button (⏻) in sidebar clears session; optionally clears identity keypair - TURN credentials now use HMAC-SHA1 of username (coturn use-auth-secret compatible) - README: deploy scripts documented, session persistence section, serve-web.sh noted - FUTURE.md: mark shipped items, add remaining work for daemon TURN + TUI rooms Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
130 lines
7.4 KiB
Markdown
130 lines
7.4 KiB
Markdown
# Future Vision
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WASTE's design philosophy is still sound: small trusted groups, no central server, encrypted everything, equal nodes. That's essentially what Signal's sealed sender and private groups do today, just without a self-hosted option. This gap is worth filling.
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---
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## Architecture
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Two clean layers, connected by the IPC port.
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### Daemon
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The real application. A long-running background process that handles everything:
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- Peer mesh and connection management (WebRTC DataChannels, DTLS, ICE)
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- Cryptography and handshake (Ed25519 identity, nacl/box signaling, YAW/2.1 FS)
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- NAT traversal (ICE/STUN via pion/webrtc — no custom relay needed)
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- File transfer (dedicated binary DataChannels per transfer)
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Exposes a local JSON API over TCP (`127.0.0.1:17337`). Can run headlessly — SSH into a box and the mesh stays alive even with no UI attached.
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### UI Layer
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Talks to the daemon over the IPC port. The separation means the UI is replaceable without touching the core.
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Target: a web frontend (React or similar) wrapped in a native binary using a Tauri-style approach — native packaging, OS webview, no Electron weight. Avoids the wxWidgets ugliness of the old wxWASTE fork and the Qt licensing headaches of the VIA fork.
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#### TUI ✅ (shipped)
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A terminal UI (`cmd/tui`) using [Bubble Tea](https://github.com/charmbracelet/bubbletea). Three-pane layout: rooms, messages, peers. Supports group chat, DMs, room switching, invite generation. Works over SSH.
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#### Web UI ✅ (shipped)
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React + Vite frontend. Two modes:
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- **Browser mode** — runs entirely in-browser, connects directly to the anchor via WebSocket. No daemon required. Identity persists in `localStorage`. File sharing, file push, per-peer ICE/NAT status.
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- **Daemon mode** — web UI connects to a local daemon over WebSocket IPC. Same UI, different adapter.
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---
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## Protocol
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### NAT Traversal ✅ (WebRTC ICE/STUN)
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Solved by using WebRTC DataChannels via pion. ICE gathers host + server-reflexive (STUN) candidates and performs UDP hole punching automatically. The anchor (`cmd/anchor`) doubles as a STUN server on UDP/3478.
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### TURN relay ✅ (shipped, browser mode)
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Browser mode now supports TURN relay. `iceServers()` in `browser.ts` reads `WASTE_CONFIG.turnURL` and `WASTE_CONFIG.turnSecret`, generates time-limited HMAC-SHA1 credentials (compatible with coturn `use-auth-secret`), and adds the TURN server to the ICE candidate list. Mobile/CGNAT peers that fail STUN hole-punching automatically fall back to TURN relay.
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The peer dot in the sidebar turns yellow for relayed connections (`candidate_type: relay`).
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**Daemon mode:** not yet wired. Add `-turn-url` / `-turn-secret` flags to `cmd/daemon/main.go` and pass them into the `ICEServers` slice in `internal/anchor/client.go`.
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### Signaling ✅ YAW/2.1 (shipped)
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Forward-secret signaling via per-session ephemeral X25519 keys. Falls back transparently to 2.0 static-key sealing for peers that don't speak 2.1.
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### Multi-Network Support ✅ (shipped)
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One daemon, multiple simultaneously-joined networks. Per-network HKDF-derived identities prevent cross-network correlation. Network-scoped SQLite stores.
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### Invite System ✅ (shipped)
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`waste:<base64>` URIs encoding anchor URL + network name. `--join` flag on daemon and TUI. `Ctrl+I` in TUI or `generate_invite` via IPC.
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### File Transfer ✅ (shipped)
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Dedicated binary DataChannel per transfer (`f:<xid>`). SHA-256 integrity verification. 64 KiB chunks with backpressure. Auto-accept. In browser mode: both pull (browse peer's shared folder) and push (📎 send directly to a peer).
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### Peer Gossip ✅ (shipped)
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When a new peer connects, the mesh immediately gossips the full peer list to them (`peer_gossip` wire message). New arrivals discover existing peers without needing the anchor to re-introduce them. The anchor becomes optional once the first handshake has happened — the mesh self-heals around anchor downtime.
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---
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## Remaining Work
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### Session Persistence ✅ (shipped)
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Browser mode now auto-rejoins on reload. The last-used network name, alias, and anchor URL are saved to `localStorage` on join and restored on load. A ⏻ logout button in the sidebar clears session state (optionally including the identity keypair) and reloads the page.
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### Per-Network Share Directories ✅ (shipped)
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Share state is tracked per `network_id` in the store (`sharedFilesByNetwork`). The folder picker shows per-network file count. Switching networks switches the active share.
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### Additional Channels / Rooms ✅ (shipped)
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The `+` button in the Rooms sidebar section creates custom rooms, stored in `customRooms` keyed by `network_id`. Room names are slugified strings — any peer that sends to a room name causes it to appear on the recipient automatically. DM rooms (`dm:<peerId>`) appear automatically when messages arrive.
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**Not yet done:** TUI room creation, daemon-side SQLite persistence of room lists across restarts.
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### File Transfer UX ✅ (shipped)
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- Manual accept/reject via the Transfers panel in the sidebar
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- Transfer cancellation (`file-cancel` message, closes DataChannel)
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- Live progress bar per active transfer
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- Push (📎) sends directly to a peer without them needing to share a folder
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**Not yet done:** resume after disconnection, daemon-side download directory.
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### TURN Relay for Daemon Mode
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The daemon doesn't yet support TURN. Add `-turn-url` and `-turn-secret` flags to `cmd/daemon/main.go` and wire them into the ICE server list in `internal/anchor/client.go`. The credential generation is the same HMAC-SHA1 scheme already implemented in browser mode.
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### Native UI
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Web frontend (React, already built) + Tauri shell for native packaging. The IPC protocol is the full boundary — the UI is already a pure consumer. Main work: Tauri setup, system tray, OS notifications.
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---
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## Roadmap
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| Status | Item |
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|---|---|
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| ✅ shipped | Daemon + anchor server |
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| ✅ shipped | WebRTC DataChannels (ICE/STUN hole punching) |
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| ✅ shipped | Ed25519 identity, nacl/box signaling (YAW/2.0 + 2.1) |
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| ✅ shipped | IPC protocol — join/leave/chat/DM/state |
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| ✅ shipped | Message persistence (SQLite, per-network) |
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| ✅ shipped | TUI (`cmd/tui`, Bubble Tea) |
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| ✅ shipped | Invite system (`waste:` URI, `--join` flag) |
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| ✅ shipped | Multi-network support (HKDF derived identities) |
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| ✅ shipped | File transfer (binary DataChannels, pull + push) |
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| ✅ shipped | Forward-secret signaling (YAW/2.1 ephemeral X25519) |
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| ✅ shipped | Peer gossip (anchor-free mesh reconnection) |
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| ✅ shipped | Web UI — browser mode + daemon mode |
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| ✅ shipped | Per-peer NAT/ICE status, identity backup/restore |
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| ✅ shipped | Per-network share directories |
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| ✅ shipped | Additional channels/rooms per network |
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| ✅ shipped | TURN relay (browser mode, coturn `use-auth-secret`) |
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| ✅ shipped | File transfer UX (progress, cancel, manual accept) |
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| ✅ shipped | Session persistence + logout (browser mode) |
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| next | TURN relay for daemon mode |
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| next | TUI room creation + daemon-side room persistence |
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| next | File transfer resume after disconnection |
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| future | Native UI (React + Tauri) |
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---
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## What to Keep from WASTE
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- **Small group** — not a public network, not federated, not discoverable
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- **No registration** — no phone number, no email, no central service
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- **Encrypted everything** — at rest and in transit, end to end
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- **Equal nodes** — no peer is "the server"; the anchor is dumb infrastructure
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- **The soul** — a private overlay for people you actually trust
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