Commit Graph
13 Commits
Author SHA1 Message Date
molluskandClaude Opus 5 45464b4af5 repair: read and unload Pulse modules through libpulse, not pactl text
Third review round found three more blocking P2s, and they shared one root cause:
`pactl`'s text output cannot carry the guarantees repair was claiming. All three
are closed by talking to the protocol instead. New dependency taken with the
user's explicit sign-off after vetting.

**Record boundaries were unprovable.** `pactl list short modules` prints a
module's argument raw into a tab/newline-delimited format with no escaping. A
*genuine* module whose argument contains a newline renders a first line that reads
byte-exactly like one of our canonical forms, with the remainder dropped as an
unparseable continuation — no forged index, so the duplicate-index check could not
see it. Repair would have classified and unloaded a module it never saw in full.
**Field-confirmed on the live server**, because this needed no adversary: loading a
loopback whose argument is canonical-then-newline-then-`remix=false` (a real
loopback option) produces exactly that listing. A tab in the same position is
worse: it hid a sink reference from the gate that protects a still-referenced sink.

**Index and argument could be mis-paired.** The listing carrying exact arguments
(`-f json`) carries no index at all on pactl 17; the one carrying the index cannot
carry the argument faithfully. Correlating them by position — which the previous
commit did — is unsound whenever module names repeat: another client loading one
module and unloading another between the two calls leaves counts and names aligned
while every argument has shifted by one, so a foreign module inherits a canonical
fingerprint. The name check cannot see it and the retry never fires.

**Locality was a guess.** `PULSE_SERVER` is a fallback *list*, so
`unix:/missing tcp:remote:4713` passes any "starts with unix:" test and then
connects to another machine, where local pids mean nothing and a live remote host's
modules look dead. A remote server can also be selected by client config with the
variable unset entirely.

New `repair/introspect.rs` owns one verified-local connection: `pa_module_info`
gives index, name and exact argument in a single record, `pa_context_is_local()`
answers locality about the connection actually established, and unloading goes back
through that same connection so listing and destruction cannot disagree about which
server they mean. It holds no policy beyond refusing the wrong server; every
decision stays in the pure planner.

⚠️ **The field test caught a real bug that no unit test could have.** The first
version did its work correctly and then aborted on the way out:

    Assertion '!e->dead' failed at ../pulseaudio/src/pulse/mainloop.c:207,
    function mainloop_io_free(). Aborting.

SIGABRT, core dumped, exit 134 — a fully successful repair reporting failure to its
caller. Cause: Rust drops fields in declaration order and the context's teardown
frees IO events living in the mainloop, which I had declared first. **This is
exactly the invariant phase 0b exists for, met again one layer down.** Fixed, and
then hardened past the fix: `Drop` explicitly takes and destroys the context before
the mainloop, so the ordering no longer depends on where the fields are written.

Liveness keeps its `NSpid`/container checks but the claim is corrected: `NSpid > 1`
means "definitely nested", while `NSpid == 1` is NOT proof of the initial namespace
— its leftmost value is relative to the procfs that was mounted, so a nested
namespace with its own `/proc` reports one entry legitimately. These are negative
signals that fail closed, not a proof of trustworthy pids. Closing that properly
needs modules to carry an owner token (machine/boot plus pid-namespace identity),
which changes what pixelpass writes into the graph and how far back `--repair` can
clean up: recorded as a design decision, not guessed at.

libpulse-binding 2.30.1 vetted before use: MIT/Apache-2.0, 5.5M downloads, 3 new
crates total, build script does nothing but probe pkg-config, no network or
subprocess use anywhere in the sources, and all three historical RustSec advisories
(2018-0020, 2018-0021, 2019-0038) were fixed by 2.6.0. The reasoning is recorded in
Cargo.toml beside the dependency.

247 tests, clippy clean, fmt clean apart from the pre-existing taint/tests.rs:2683.
The text parser's tests are gone with the parser; the liveness probe keeps its own,
and the live field gates — A/B orphan removal, the reference/unrecognised fixture,
and the newline fixture — all pass with exit 0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-07-27 01:23:23 -04:00
mollusk 3b92bcbe52 chore: update dependencies for RustSec advisories 2026-07-15 06:29:05 -04:00
molluskandClaude Opus 4.8 c39ab081d9 packaging: pull GStreamer capture stack into .deb runtime deps
pixelpass invokes the GStreamer tools and pactl as subprocesses, not as
linked libraries, so dpkg-shlibdeps (`depends = "$auto"`) never sees them.
On a fresh Ubuntu host that means `deps::check_host_binaries` bails before
the host emits its ticket — peerspeak then reports the generic "pixelpass
host exited before emitting a ticket" (first 2-human field hit, 2026-06-26).

List the runtime stack explicitly so `apt install ./pixelpass.deb` pulls in
gstreamer1.0-{tools,plugins-base,plugins-good,plugins-bad,plugins-ugly,libav,
pipewire,pulseaudio}, pulseaudio-utils and x11-utils. Recommends mpv.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-26 23:10:08 -04:00
molluskandClaude Opus 4.8 ff7daee34e packaging: add cargo-deb metadata for Debian/Ubuntu .deb builds
Add a [package.metadata.deb] block so the headless default build (no `gui`
feature) — the variant peerspeak spawns as a child — can be packaged with
`cargo deb` from inside a Debian/Ubuntu distrobox. Ships only the pixelpass
binary; runtime shared-lib deps resolved by dpkg-shlibdeps.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-26 21:30:17 -04:00
molluskandClaude Opus 4.7 7a03dee12f gui: QR-code panel for the host ticket
Encodes the relay-only ticket as a QR with a 4-module quiet zone so a
phone (or a second laptop with a webcam) can pick the room up without
typing 140+ characters. Built lazily on the first draw after a Ticket
event, NEAREST-filtered, 200x200 logical; cleared on session start and
stop.

Pulls `qrcode` 0.14 with `default-features = false` so the heavy `image`
crate tree is skipped — we render modules straight to an
`egui::ColorImage` ourselves.

Reapplies the idea from Gemini's stale `feat/gemini-branch-qrcode`
(`7f07583`) against the post-hand-rolled-loop GUI; the original commit
no longer cherry-picks because gui/mod.rs was rewritten for the
true-Wayland-window-hide work.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-28 05:07:14 -04:00
molluskandClaude Opus 4.7 511927569b feat(gui): hand-rolled winit loop for true window-hide on Wayland
Replace eframe::run_native with a winit ApplicationHandler + glutin +
egui_glow loop so "keep running in the tray" can genuinely hide the
window. winit's set_visible(false) is a deliberate no-op on Wayland
(xdg-shell has no unmap-but-keep-alive request), so the only way to hide
a toplevel is to destroy its surface: hide-to-tray now drops the Window +
GL surface (parking the GL context as not-current) and a tray click
recreates them and makes the context current again. The GL context,
glutin display/config, egui_glow painter (uploaded textures), and
egui-winit state (clipboard) all persist across the cycle — only the OS
window and its surface churn.

Wakeups route through winit's EventLoopProxy (the new Waker, and the
tray) instead of egui's repaint callback, so a child event or tray click
wakes the loop even while the window is dropped and no frame is running —
keeping viewer join/leave notifications and the tray tooltip live while
hidden. Removes the old Wayland minimize-to-tray fallback (window stayed
in the taskbar); hide is now uniform on Wayland and X11.

Deps: winit/glutin/glutin-winit/egui_glow promoted to direct (gui-gated,
optional) — all already transitive via eframe, so no new crates. winit's
default features minus wayland-csd-adwaita, so sctk-adwaita/tiny-skia/
ttf-parser aren't pulled for a CSD fallback titlebar (KWin draws
server-side decorations, and eframe never had CSD either).

Verified end-to-end on KWin Wayland: launch->render; close->window AND
taskbar entry gone (true hide, process stays alive); tray activate->
window + GL surface recreated and renders; tray quit->clean exit; stderr
clean throughout. cargo test --features gui: 15 pass; clippy clean;
headless dependency tree unchanged.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-26 15:41:38 -04:00
molluskandClaude Opus 4.7 b260d57dc4 feat(gui): system tray with opt-in close-to-tray setting
Add a StatusNotifierItem tray (ksni — pure-Rust over the zbus stack
notify-rust already pulls; only new crate is the pastey macro helper).
The icon reflects host/viewer status via its tooltip and offers
Show / Quit; it runs on its own thread, channel-wired to the egui app.

Add a Settings screen with a persisted toggle 'keep running in the tray
when I close the window' (config.toml [gui] close_to_tray), defaulting
OFF so the close button quits as users expect. When ON, closing hides
to the tray on X11 / minimizes on Wayland (which has no protocol to hide
a toplevel) and keeps any live stream running. If no tray is present the
close behaves normally, so the window can never be stranded.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-26 05:54:06 -04:00
molluskandClaude Opus 4.7 f926dbea4e feat(gui): desktop notification when a viewer joins or leaves
The host screen pops a desktop notification on each viewer join/leave,
so you know someone connected while the window is in the background.

Fired on a detached thread (the D-Bus call never touches the egui
frame) and gated on the same viewer-list transitions, so stopping the
host — which drops the child and stops pumping events — doesn't spray a
notification per remaining viewer.

notify-rust's default features give the pure-Rust zbus backend, so this
adds no system libdbus dependency and no GTK event loop (gui feature
only; the headless build is untouched).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-25 15:31:48 -04:00
molluskandClaude Opus 4.7 6f0fd088f6 feat(gui): scaffold egui window behind the gui feature
Adds the opt-in graphical front-end (pixelpass --gui), default-off via the
`gui` cargo feature so the headless build never pulls the toolkit tree.
eframe 0.34 on the glow/OpenGL backend (no wgpu); 69 feature-gated crates,
vetted. --gui on a headless build errors with a rebuild hint.

This commit is just the shell: a window with a Host/View menu and back
navigation. The shell-out child-spawning + JSON event parsing that drives
real host/viewer controls come next. Window verified to open and render
cleanly on Wayland (glow).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-24 16:26:56 -04:00
molluskandClaude Opus 4.7 153febe078 pre-flight: bandwidth test + persistent config
First-run host launch now offers a one-time upstream measurement
against speed.cloudflare.com/__up via ureq (~5 MB POST, ~5s). The
result lives at ~/.config/pixelpass/config.toml under [bandwidth]
and feeds the default --max-viewers calculation on subsequent runs.

Sticky semantics for the dialog:
- Unmeasured: first-run prompt (Run / Skip)
- Measured / Skipped: silent — never re-prompts
- Failed: ask again on next launch (Retry / give up → Skipped)

`pixelpass --reconfigure` re-runs the test unconditionally for users
whose connection has changed (new ISP, moved house, etc.).

--max-viewers is now Option<u32>. When unset, host startup loads the
saved measurement, runs recommended_max_viewers(safe_mbps, bitrate),
and surfaces the source in the banner: "max viewers : N (auto: X.X
Mbps measured upstream)" — or user-specified / default fallback.

User verified end-to-end on 2026-05-21 16:54 EDT: first-run dialog,
skip path, run path, --reconfigure refresh, and banner integration
all work as expected.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-21 16:55:11 -04:00
molluskandClaude Opus 4.7 3aa8d73ea0 Cargo.toml: drop ffmpeg from package description
ffmpeg was removed from the Wayland path on 2026-05-16 (commit 7b8b6bc).
The description was stale.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 16:07:48 -04:00
mollusk bb437a73cf interactive: Host/View entry menu, clipboard copy, player picker
Bare `pixelpass` now opens a dialoguer-driven Host/View menu instead of
going straight to host mode. Host path copies the ticket to the system
clipboard via arboard with silent print-only fallback. View path
prompts for the ticket, then after the local listener binds prompts
mpv-vs-VLC and spawns it detached (setsid + null stdio) so the player
survives pixelpass exiting.

Headless invocations (`pixelpass <ticket>`, `pixelpass --repair`)
unchanged. Per spec at ~/Documents/pixelpass-interactive-mode-spec.md.
2026-05-18 15:46:57 -04:00
mollusk 6ad92081aa Phase 1 foundation: CLI, iroh tunnel, lazy capture wiring
Scaffolding for PixelPass per ~/Documents/p2p-screenshare-plan.md §7
"Phase 1 — MVP". The full QUIC tunnel handshake works end-to-end
(verified locally: host generates ticket, viewer dials through iroh's
relay, open_bi succeeds, lazy capture is wired correctly).

What's implemented:

- Cargo project with deps locked: iroh 1.0.0-rc.0, iroh-tickets,
  tokio, clap, ashpd, pipewire-rs, x11rb, ashpd, anyhow, thiserror,
  tracing, nix, directories, uuid.
- src/cli.rs: complete clap surface per plan §6 (--window, --app,
  --mic, --display-server, --bitrate, --framerate, --no-hwencode,
  --low-latency, --port, --verbose, --repair).
- Mode dispatch in main.rs: EndpointTicket::from_str is the
  authoritative check; no regex / heuristics.
- common/display.rs: WAYLAND_DISPLAY → DISPLAY → XDG_SESSION_TYPE
  precedence with --display-server override.
- common/deps.rs: per-distro install hints (pacman/apt/dnf/zypper)
  parsing /etc/os-release.
- common/alpn.rs: ALPN = b"pixelpass/0".
- common/tunnel.rs: generic bidirectional bridge between an iroh
  bi-stream and any AsyncRead+AsyncWrite (typically a TCP socket).
- common/signal.rs: ctrl-c -> CancellationToken; second ctrl-c hard
  exit.
- host/mod.rs: build Endpoint, generate ticket, print banner, await
  first peer (lazy — no ffmpeg until peer connects), accept_bi,
  spawn capture, bridge to localhost ffmpeg HTTP listener.
- host/capture.rs: stub returning Phase-2 error; the place X11
  x11grab and Wayland ashpd+gst pipelines will land.
- viewer/mod.rs: Endpoint, connect with ALPN, open_bi, TcpListener
  on 127.0.0.1, print copy-ready mpv/vlc commands, bridge.
- repair.rs: stub for --repair PipeWire scan.

iroh 1.0-rc renamed Node* -> Endpoint* and moved EndpointTicket into
a sibling crate (iroh-tickets); no design impact. Plan still locked.
2026-05-15 15:13:28 -04:00