Files
punktfunk/web
enricobuehler 6776bff82d
ci / web (pull_request) Successful in 1m8s
ci / docs-site (pull_request) Successful in 1m18s
ci / rust (pull_request) Failing after 4m6s
ci / bun-nix (pull_request) Successful in 4m20s
android / android (pull_request) Successful in 13m55s
ci / rust-arm64 (pull_request) Successful in 6m14s
feat(host,console): the host knew about every one of these faults and had no way to say so
Implements design/web-console-diagnostics.md, WP1-WP3 (the v1). WP4 (live checks + SSE)
and WP5 (instant helpers) stay deferred, as that plan sequences them.

The `.181` incident is the type specimen. `preflight_takeover_privilege()` is the most
careful probe in the repo — four applicability gates, and it even separates user-database
membership from the running process's supplementary groups — and it spends all of that
care on ONE WARN log line. A console-driven update never shows scriptlet stderr, so the
operator's only symptom was a black screen on every connect. The class of bug is "the host
knows, and the person operating it has no way to find out".

Host
----
`diagnostics.rs` holds the `HostCheck` model and a process-global registry (probes in,
cached verdicts out; `POST /refresh` re-runs them). `inapplicable` is a first-class status
rather than an absent row, so the page can answer "why isn't this check relevant here?"
instead of silently hiding it. `diagnostics/catalog.rs` maps verdicts to wire checks and
owns every user-visible string.

`GET /api/v1/diagnostics` + `POST /api/v1/diagnostics/refresh` are **admin lane only**.
Neither allowlist in `auth.rs` is touched: both are opt-in, and these verdicts carry the
host user's name, its group layout and device-node state. The route-classification test
gets both rows so that stays a reviewed decision rather than a default.

Probes stay in their owning crates and export plain verdict enums; the host does the
mapping. No reverse dependency — `pf-inject`/`pf-vdisplay` never learn about host types.

* `pf-vdisplay`: `preflight_takeover_privilege()` now logs FROM
  `takeover_privilege_verdict()`. The WARN line is unchanged, deliberately: headless
  operators read logs, not consoles, and this moves where the verdict GOES, not what it
  says.
* `pf-inject`: `uinput_probe()` keeps the errno that `pen_supported()` throws away, so
  "you are not in the input group" (EACCES) and "the module was never installed" (ENOENT)
  stop looking identical — they need opposite remedies. `vhci_probe()` reports device
  facts only (module present, node writable by this process); who to blame is the host's
  question, because only the user database can answer it.

Two distinctions the catalog refuses to collapse:

1. **User-database membership vs this process's groups.** `usermod -aG` satisfies the
   first immediately and the second not until the next login. Collapsing them produces
   the single most maddening support state there is — "I already added myself!" — which
   nothing in the logs distinguishes today. It now gets its own remedy: log out, no
   command to run.
2. **`usermod` does not stick on an atomic OS.** On the Universal Blue images the remedy
   is `ujust add-user-to-input-group`. Matched on the OS chain's LEAF, never on the
   `fedora` family token: plain Fedora Workstation is mutable and does want `usermod`.

Console
-------
The dashboard gets an `AttentionCard` that renders nothing at all on a healthy host
(`ConflictsCard`'s rule), shows at most the 3 worst checks, and links onward rather than
explaining — a dashboard that starts teaching remedies stops being a dashboard.

Its badge says the **severity**, not the status. The badge's colour already encodes
severity, so a badge reading "Failing" on both a red and an amber row leaves the
difference between them carried by colour alone — which is the thing the `pin_pending`
precedent exists to prevent. Caught on glass, not in the diff.

The Logs page becomes Troubleshooting: checks above the log stream, because when the
checks are green and something is still broken the log is the natural next step. The
ROUTE stays `/logs` — bookmarks and deep links outlive a label. `LogsCard` grows a
heading, since the page title no longer names it.

A check id this console has never heard of still renders, from the host's English
`summary`/`impact`/`remedy.text`. That is what makes console N paired with host N+1
survivable, and it is enforced as a test rather than left as a convention. The situational
prose is deliberately NOT duplicated into the message catalogues: one check has many
shapes (the vhci one alone has four distinct causes), and copying ~20 sentences into a
package that versions independently of the one that generates them is the very drift this
design set out to avoid. The console localizes the check NAMES and all chrome; when the
host sends a shape discriminator alongside `id`, localized prose can key off it.

Verification
------------
`cargo clippy -D warnings` and `cargo fmt --all --check` clean on Linux; 12 diagnostics
unit tests and 48 mgmt handler tests green, including the openapi drift test —
`api/openapi.json` and the ungated `docs-site/public/openapi.json` copy are both
regenerated. Web: build, lint, `bun test server/`, storybook, and the new stories shot in
both themes with the theme flip verified rather than assumed.

Not yet on glass: the real `.181` box (all three vhci states), `.138` for the
unpackaged-helper path, and the old-console/new-host pairing legs.
2026-08-15 17:30:13 +02:00
..
2026-06-26 05:43:34 +00:00

punktfunk web — management console

The browser UI for the punktfunk host's management REST API (crates/punktfunk-host/src/mgmt.rs, OpenAPI at api/openapi.json). It shows live status, host capabilities, paired clients, the pairing-PIN flow, and session controls.

Stack: TanStack Start (full SSR) on Bun via Nitro v2 (bun preset) · React Query through orval codegen from the OpenAPI spec · @unom/ui — the shared punktfunk/unom design system the marketing site + docs are built on (Tailwind v4, animated components on the violet brand over dark chrome) · Paraglide i18n (en/de). Package manager + runtime: Bun.

The @unom registry mapping lives in .npmrc; the auth token comes from ~/.npmrc (or a CI secret).

Develop

# from web/  — Bun is the toolchain (https://bun.sh)
bun install               # runs `prepare` → codegen (orval + paraglide)
bun run dev               # http://localhost:47992

# The dev server proxies /api → https://127.0.0.1:47990 (the host's mgmt API; it serves HTTPS
# with the host's self-signed identity cert — the dev proxy uses `secure: false`).
# Point it elsewhere: PUNKTFUNK_MGMT_URL=https://<host>:47990 bun run dev

Start a host with the management API up:

# from the repo root — `serve` brings up the native punktfunk/1 plane + the mgmt API (the console
# only needs the mgmt API; add --gamestream too if you also want the Moonlight surface):
WAYLAND_DISPLAY=wayland-kde XDG_CURRENT_DESKTOP=KDE \
  cargo run -rp punktfunk-host -- serve
# loopback :47990, no token (a token is mandatory for non-loopback binds).

The management token is server-side only — set PUNKTFUNK_MGMT_TOKEN in the console's environment and the BFF injects it when proxying (server/routes/api/[...].ts). It never reaches the browser, so there is no token field in the UI; the browser only ever holds the session cookie.

Build & run (Nitro + Bun)

The console runs on bun (Bun.serve is a Bun API — node can't run it): Nitro's bun preset plus a custom entry (nitro-entry/bun-https.mjs) that calls Bun.serve({ tls }), so it serves HTTPS (HTTP/1.1 over TLS) with the host's own identity cert (the cert native clients already pin). One trust anchor across the data plane, the mgmt API, and this console. (No HTTP/2 — Bun.serve has no h2 server — and no HTTP/3, which a browser won't speak against this self-signed, no-SAN host cert; a browser-trusted, SAN-matching cert + a fronting server would be needed, out of scope for a LAN console.)

bun run build             # → .output/  (Nitro `bun` preset + our Bun.serve TLS entry)
PORT=47992 HOST=0.0.0.0 \
  PUNKTFUNK_UI_PASSWORD=PUNKTFUNK_MGMT_TOKEN=\
  PUNKTFUNK_MGMT_URL=https://127.0.0.1:47990 \
  PUNKTFUNK_UI_TLS_CERT=~/.config/punktfunk/cert.pem \
  PUNKTFUNK_UI_TLS_KEY=~/.config/punktfunk/key.pem PUNKTFUNK_UI_SECURE=1 \
  bun run start           # = bun run .output/server/index.mjs
# PUNKTFUNK_UI_TLS_* unset ⇒ plain HTTP (local dev); both set ⇒ HTTPS (HTTP/1.1 over TLS).
# The host's self-signed mgmt cert is accepted only for the proxy's loopback hop, scoped in code
# (Bun per-request TLS: server/routes/api/[...].ts) — no process-wide NODE_TLS_REJECT_UNAUTHORIZED.
# See .env.example.
bun run lint              # tsc --noEmit

The built Nitro bun server SSR-renders the app and is the only thing exposed on the LAN. Run it on the same box as the host; it serves the console over HTTPS on :47992 (or $PORT).

Auth (backend-for-frontend)

Single-user, login-gated. Config via env (see .env.example):

  • The console requires a login (PUNKTFUNK_UI_PASSWORD). On success the server sets a sealed session cookie (h3 useSession, AES-GCM). server/middleware/auth.ts gates every request — pages redirect to /login, /api returns 401 — and fails closed (503) if PUNKTFUNK_UI_PASSWORD is unset, so a misconfigured LAN server admits no one.
  • The bearer-token admin surface of the management API is loopback-only — the host honors a bearer token only from a loopback peer, so the admin API is never LAN-exposed. The web server holds PUNKTFUNK_MGMT_TOKEN server-side and injects it when proxying /api/**PUNKTFUNK_MGMT_URL (loopback; server/routes/api/[...].ts). The token never reaches the browser; the browser only ever holds the session cookie. (The host also binds the read-only surface — host status + the game library — to the LAN so paired native clients can fetch it directly over mTLS; that path uses client certs, not the token, and never touches this console.)

So: browser ──password──▶ web server (session cookie) ──mgmt token, server-side──▶ mgmt API. Run the host with a matching token: cargo run -rp punktfunk-host -- serve + PUNKTFUNK_MGMT_TOKEN=… (or --mgmt-token …). vite dev has no gate (localhost-only) and proxies straight to the loopback mgmt API.

Toolchain notes (load-bearing): TanStack Start's start-plugin-core peer-requires Vite ≥ 7 — on Vite 6 the build's prerender/post-build hook silently doesn't run. @vitejs/plugin-react must match Vite (v5 ↔ Vite 7, v6 ↔ Vite 8); it's required even for dev (TanStack Start's dev mode needs the React Refresh runtime, else a blank screen). Nitro is the server target — without it vite build only emits client+SSR bundles, no deployable server. The Nitro bun preset makes .output/server/index.mjs Bun-runnable.

Codegen

Generated code is not committed (gitignored) — reproduced from sources:

  • bun run codegen — regenerate the API client (orval) + i18n runtime (paraglide). Runs on bun install (prepare) and before dev/build (pre* for orval; the Vite plugin compiles paraglide on dev/build).
  • After a management-API change, regenerate the spec on the Rust side first: cargo run -p punktfunk-host -- openapi > api/openapi.json, then bun run api:gen.

Layout

src/
  routes/            file-based routes (index=dashboard, host, clients, pairing, settings)
  components/
    app-shell.tsx    sidebar nav (brand lens + wordmark) + language switcher
    brand-mark/wordmark/logo.tsx   punktfunk lens mark + wordmark (shared with the site/docs)
    ui/              @unom/ui-backed primitives (button, input, label, card; badge/table/skeleton)
    query-state.tsx  loading/error wrapper (401 → the session is gone, re-login)
  api/
    fetcher.ts       orval mutator: base URL, bearer token, JSON, throwing ApiError
    gen/             GENERATED react-query hooks + models (orval)
  lib/i18n.ts        reactive Paraglide locale hook
  paraglide/         GENERATED i18n runtime (paraglide)
messages/{en,de}.json   translation sources