Files
Mycell-UI/README.md
syoul eb86fdd182 P5: settings, persistence, polkit packaging, README
Backend
- regenerate_identity command stops the daemon, deletes
  priv_key.bin, leaves the user to restart for a fresh identity;
  falls back to the canonical XDG path when sidecar.key_path()
  isn't populated yet
- tauri.conf.json ships the polkit policy via deb.files mapping;
  src-tauri/packaging/polkit/tech.threefold.mycellium-ui.policy
  declares the spawn action with auth_admin_keep so the dialog
  appears once per session

Frontend
- config store persists SidecarConfig (peers, tunName, noTun)
  through tauri-plugin-store; App.vue reads it and forwards to
  start_daemon, replacing the hard-coded defaults
- Settings view: daemon-config form, identity panel with the
  destructive regenerate button, sidecar log viewer, About
- README rewritten end-to-end: HTTP-loopback architecture, polkit
  install path, build commands, verification matrix, and a
  honest "known limitations" section
2026-04-25 23:15:35 +02:00

112 lines
6.0 KiB
Markdown

# mycellium-ui
Cross-platform desktop GUI for [Mycelium](https://github.com/threefoldtech/mycelium) — Threefold's end-to-end encrypted IPv6 overlay network.
The app embeds the official `mycelium` binary as a Tauri sidecar and pilots it through its HTTP API on a loopback ephemeral port. Root privileges (required to create the TUN interface) are obtained via `pkexec`.
## Status
v1, Linux-only. Implements the full `docs/api.yaml` surface of mycelium v0.6.1: admin, peers (CRUD), routes (selected/fallback/queried), messages (send/receive/reply/status), topics (default + whitelist + sources + forward), pubkey lookup.
## Architecture
```
┌──────────────────────────────────────────────────────────────┐
│ WebView (Vue 3 + TS + Tailwind + radix-vue + Pinia) │
│ Status / Peers / Routes / Messages / Topics / Settings │
└────────────────┬─────────────────────────────────────────────┘
│ invoke() / Tauri events
┌────────────────┴─────────────────────────────────────────────┐
│ Tauri core (Rust, tokio + reqwest) │
│ • sidecar.rs — supervises mycelium via pkexec │
│ • api/* — typed REST client │
│ • poller.rs — emits peers://, stats://, routes://, messages://incoming │
└────────────────┬─────────────────────────────────────────────┘
│ HTTP loopback :ephemeral
┌────────────────┴─────────────────────────────────────────────┐
│ mycelium daemon (sidecar binary, runs as root via pkexec) │
│ TUN0 ◄─► overlay network │
└──────────────────────────────────────────────────────────────┘
```
There is no Unix socket / named pipe IPC — the daemon's own HTTP API is the integration point.
## Prerequisites (Debian / Ubuntu)
```bash
sudo apt install -y \
libwebkit2gtk-4.1-dev libjavascriptcoregtk-4.1-dev \
libsoup-3.0-dev libayatana-appindicator3-dev librsvg2-dev \
build-essential curl wget file libssl-dev libgtk-3-dev libxdo-dev \
pkg-config policykit-1
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
```
Then Node 20+ and pnpm 10+.
## Setup
```bash
# 1. Install JS deps
pnpm install
# 2. Fetch the mycelium sidecar binary for your target triple
bash scripts/fetch-mycelium.sh # uses MYCELIUM_VERSION (default v0.6.1)
# or: MYCELIUM_VERSION=v0.6.1 bash scripts/fetch-mycelium.sh
# 3. Run in dev
pnpm tauri dev
```
The first start triggers a `pkexec` dialog asking you to authenticate; the polkit policy installed by the `.deb` caches the auth for the user session.
## Build
```bash
pnpm tauri build # → src-tauri/target/release/bundle/{deb,appimage}/
```
The `.deb` declares `Depends: policykit-1` and ships the polkit policy under `/usr/share/polkit-1/actions/tech.threefold.mycellium-ui.policy`. The AppImage relies on `pkexec` being present on the host — on systems without polkit, fall back to running with `sudo` after disabling the sidecar's pkexec wrapper.
## Layout
```
src/ # Vue 3 frontend
views/ # one file per nav item
components/ # shadcn-style UI primitives + dialogs
stores/ # Pinia: node, peers, routes, messages, topics, config
lib/ # api wrapper, events, base64 + format helpers
src-tauri/
src/
sidecar.rs # spawn + supervise mycelium
elevation.rs # pkexec command builder
poller.rs # 3 background loops (peers, routes, inbox long-poll)
api/ # REST client modules (admin, peers, routes,
# messages, topics, pubkey)
commands.rs # #[tauri::command] handlers, 1:1 with REST
error.rs # AppError + Serialize-as-string for invoke()
binaries/ # gitignored; populated by scripts/fetch-mycelium.sh
packaging/polkit/ # XML policy bundled into the .deb
scripts/fetch-mycelium.sh
.github/workflows/ci.yml # pnpm typecheck + cargo fmt/clippy/test
```
## Verification matrix
| Test | How |
|------|-----|
| Sidecar starts under pkexec | `pnpm tauri dev`, daemon visible in `ps`, splash disappears in <10 s |
| Peers connect | Add `tcp://188.40.132.242:9651` from the Peers page; state turns to `alive` within ~10 s |
| Routes propagate | `Routes/Selected` becomes non-empty after ~30 s |
| Live event stream | Sidebar status dot tracks ready/idle, peers table updates without manual refresh |
| Bidirectional messages | Two instances on different VMs, exchange via Compose → Inbox |
| Identity regen | Settings → Regenerate; restart daemon; new IP appears on Status |
| `.deb` install | Fresh Ubuntu LTS / Debian 12; daemon spawns under polkit on first start |
## Known limitations (v1)
- Linux only. Windows is reachable (sidecar via `runas` / Wintun driver) but not implemented.
- Auto-start at login isn't wired — the desktop entry installed by the `.deb` is the manual launcher.
- The TOML config editor in Settings only exposes `peers`, `tunName`, `noTun`. Other keys (`metricsApiAddress`, etc.) are passed-through if you edit the file directly at `~/.local/share/tech.threefold.mycellium-ui/mycelium.toml` and restart the daemon.
- `message_status` is forwarded as opaque JSON; the upstream schema isn't pinned in the spec, so we don't strongly type it.