feat(plugins): punktfunk-host plugins CLI — add/remove/list/enable/disable/status

One-liner plugin management replacing the manual scripting-dir + bunfig +
bun-add ritual: package ops forward to the bun runner (new sdk plugins
module + runner-cli subcommands, 11 tests green), enable/disable/status
drive the systemd unit on Linux and the PunktfunkScripting scheduled task
on Windows (installer support in the ISS). Docs page rewritten as .mdx
with per-platform Tabs (registered in mdx.tsx).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
2026-07-19 16:34:19 +02:00
parent f250db96f4
commit f0c511c8fa
11 changed files with 1034 additions and 105 deletions
+7
View File
@@ -65,6 +65,7 @@ mod mgmt_token;
mod native;
mod native_pairing;
mod pipeline;
mod plugins;
mod send_pacing;
#[cfg(target_os = "windows")]
#[path = "windows/service.rs"]
@@ -249,6 +250,10 @@ fn real_main() -> Result<()> {
std::process::exit(1);
}
}
// Install and run host plugins: `plugins add playnite`, `plugins enable`, … Package ops are
// forwarded to the bun runner; enable/disable/status drive the systemd unit (Linux) or the
// PunktfunkScripting scheduled task (Windows). See plugins.rs.
Some("plugins") => plugins::main(&args[1..]),
// Print the management API's OpenAPI document (for client codegen).
Some("openapi") => {
print!("{}", mgmt::openapi_json());
@@ -623,6 +628,8 @@ fn print_usage() {
USAGE:
punktfunk-host serve [OPTIONS] native punktfunk/1 host + management REST API
(secure default; add --gamestream for Moonlight compat)
punktfunk-host plugins <CMD> install/run host plugins (add, remove, list, enable,
disable, status) — `plugins --help` for details
punktfunk-host openapi print the management API's OpenAPI document (codegen)
punktfunk-host punktfunk1-host [OPTIONS] native punktfunk/1 host (QUIC control + UDP data plane)
punktfunk-host probe-compositor exit 0 iff the compositor is up + ready (bringup gate)
+389
View File
@@ -0,0 +1,389 @@
//! `punktfunk-host plugins …` — the one-liner plugin CLI.
//!
//! Installing a plugin used to be a hand ritual: create the plugins dir, hand-write a `bunfig.toml`
//! registry scope map, `bun add` the package, then hand-enable a systemd unit (Linux) or a scheduled
//! task (Windows) — all with platform-divergent paths. This subcommand collapses that to
//! `punktfunk-host plugins add playnite` + `punktfunk-host plugins enable`.
//!
//! Split of duties (matching where the machinery already lives):
//! - **Package ops** (`add`/`remove`/`list`) are forwarded to the bun runner (`sdk/src/plugins.ts`),
//! which owns the vendored bun, the `@punktfunk` registry scope, and the plugins dir. We locate the
//! runner rather than reimplementing npm resolution in Rust.
//! - **Service ops** (`enable`/`disable`/`status`) run natively here — `systemctl --user` on Linux,
//! the `PunktfunkScripting` scheduled task on Windows — so they work even without the runner
//! package present.
//!
//! Windows needs elevation for both halves: the plugins dir lives under the ACL'd
//! `%ProgramData%\punktfunk` (see `pf_paths::create_private_dir`) and the task runs as SYSTEM. We
//! check up front and print one actionable line instead of letting `bun add` fail with a bare
//! EACCES.
use anyhow::{bail, Context, Result};
use std::process::Command;
/// The systemd user unit / Windows scheduled task that supervises plugins.
#[cfg(target_os = "linux")]
const UNIT: &str = "punktfunk-scripting";
#[cfg(target_os = "windows")]
const TASK: &str = "PunktfunkScripting";
pub fn main(args: &[String]) -> Result<()> {
match args.first().map(String::as_str) {
Some("add") | Some("remove") | Some("rm") | Some("uninstall") | Some("list")
| Some("ls") => {
// Package ops write into the (ACL'd, on Windows) plugins dir.
#[cfg(target_os = "windows")]
if !matches!(args.first().map(String::as_str), Some("list") | Some("ls")) {
require_elevation("installing or removing plugins")?;
}
forward_to_runner(args)
}
Some("enable") => {
#[cfg(target_os = "windows")]
require_elevation("enabling the plugin runner")?;
enable()
}
Some("disable") => {
#[cfg(target_os = "windows")]
require_elevation("disabling the plugin runner")?;
disable()
}
Some("status") => status(),
Some("-h") | Some("--help") | Some("help") | None => {
print_usage();
Ok(())
}
Some(other) => bail!("unknown plugins command '{other}' (try `plugins --help`)"),
}
}
fn print_usage() {
eprintln!(
"punktfunk-host plugins — install and run host plugins
USAGE:
punktfunk-host plugins add <name…> install a plugin (playnite, rom-manager, …)
punktfunk-host plugins remove <name…> uninstall a plugin
punktfunk-host plugins list list installed plugins
punktfunk-host plugins enable enable + start the plugin runner (opt-in)
punktfunk-host plugins disable stop + disable the plugin runner
punktfunk-host plugins status is the runner enabled/running?
NAMES:
A bare first-party name resolves into the @punktfunk scope: `playnite` installs
@punktfunk/plugin-playnite, `rom-manager` installs @punktfunk/plugin-rom-manager.
A scoped (@scope/pkg) or `punktfunk-plugin-*` name is used verbatim.
NOTES:
Plugins run under the runner, which is OPT-IN — `plugins add` installs, `plugins enable`
turns the runner on. Plugins are operator-installed code that runs as the host user;
install only plugins you trust.
"
);
#[cfg(target_os = "windows")]
eprintln!(
" On Windows, `add`/`remove`/`enable`/`disable` need an ELEVATED prompt (the plugins\n \
directory and the runner task are admin-owned)."
);
}
// ---- package ops: forward to the bun runner ---------------------------------------------------
/// Locate the runner and hand it the argv verbatim, inheriting stdio so bun's progress output goes
/// straight to the user's terminal. Exits with the runner's own status code.
fn forward_to_runner(args: &[String]) -> Result<()> {
let (program, prefix) = runner_command()?;
let status = Command::new(&program)
.args(&prefix)
.args(args)
.status()
.with_context(|| format!("failed to run the plugin runner ({})", program.display()))?;
if !status.success() {
// The runner already printed the reason; propagate its code without a second error line.
std::process::exit(status.code().unwrap_or(1));
}
Ok(())
}
/// Resolve how to invoke the runner CLI: the program plus any leading args (the bundled bun needs
/// the runner script path passed to it).
fn runner_command() -> Result<(std::path::PathBuf, Vec<String>)> {
#[cfg(target_os = "windows")]
{
// The installer lays the payload out as {app}\punktfunk-host.exe, {app}\bun\bun.exe and
// {app}\scripting\runner-cli.js (packaging/windows/punktfunk-host.iss).
let app = std::env::current_exe()
.context("resolve current exe")?
.parent()
.context("resolve install dir")?
.to_path_buf();
let bun = app.join("bun").join("bun.exe");
let runner = app.join("scripting").join("runner-cli.js");
if !bun.exists() || !runner.exists() {
bail!(
"the plugin runner isn't installed (looked for {} and {}) — reinstall punktfunk \
with the scripting component",
bun.display(),
runner.display()
);
}
// Tail expression, not `return`: after cfg-stripping this block is the whole fn body on
// Windows, and a `return` here trips clippy's needless_return under CI's -D warnings.
Ok((bun, vec![runner.to_string_lossy().into_owned()]))
}
#[cfg(not(target_os = "windows"))]
{
// The scripting package ships /usr/bin/punktfunk-scripting, a wrapper that runs the bundled
// bun on the runner bundle and forwards "$@" (packaging/debian/build-scripting-deb.sh).
let wrapper = std::path::PathBuf::from("/usr/bin/punktfunk-scripting");
if wrapper.exists() {
return Ok((wrapper, Vec::new()));
}
// Fall back to the package's private layout in case the wrapper is absent.
let bun = std::path::PathBuf::from("/usr/lib/punktfunk-scripting/bun");
let runner = std::path::PathBuf::from("/usr/share/punktfunk-scripting/runner-cli.js");
if bun.exists() && runner.exists() {
return Ok((bun, vec![runner.to_string_lossy().into_owned()]));
}
bail!(
"the plugin runner isn't installed — install it first (Debian/Ubuntu: \
`sudo apt install punktfunk-scripting`)"
)
}
}
// ---- service ops ------------------------------------------------------------------------------
#[cfg(target_os = "linux")]
fn enable() -> Result<()> {
run_systemctl(&["enable", "--now", UNIT])?;
println!("Plugin runner enabled and started ({UNIT}).");
Ok(())
}
#[cfg(target_os = "linux")]
fn disable() -> Result<()> {
run_systemctl(&["disable", "--now", UNIT])?;
println!("Plugin runner stopped and disabled ({UNIT}).");
Ok(())
}
#[cfg(target_os = "linux")]
fn status() -> Result<()> {
let active = systemctl_output(&["is-active", UNIT]).unwrap_or_else(|| "unknown".into());
let enabled = systemctl_output(&["is-enabled", UNIT]).unwrap_or_else(|| "unknown".into());
println!("runner: {UNIT}\nenabled: {enabled}\nactive: {active}");
if active != "active" {
println!("\nStart it with: punktfunk-host plugins enable");
}
Ok(())
}
#[cfg(target_os = "linux")]
fn run_systemctl(args: &[&str]) -> Result<()> {
let status = Command::new("systemctl")
.arg("--user")
.args(args)
.status()
.context("failed to run systemctl (is systemd available in this session?)")?;
if !status.success() {
bail!(
"systemctl --user {} failed — is the punktfunk-scripting package installed?",
args.join(" ")
);
}
Ok(())
}
/// Trimmed stdout of a `systemctl --user` query, or `None` if it couldn't run. These queries exit
/// non-zero for a normal "inactive"/"disabled" answer, so the status text is what matters.
#[cfg(target_os = "linux")]
fn systemctl_output(args: &[&str]) -> Option<String> {
let out = Command::new("systemctl")
.arg("--user")
.args(args)
.output()
.ok()?;
let s = String::from_utf8_lossy(&out.stdout).trim().to_string();
if s.is_empty() {
None
} else {
Some(s)
}
}
#[cfg(target_os = "windows")]
fn enable() -> Result<()> {
powershell(&format!(
"Enable-ScheduledTask -TaskName {TASK} -ErrorAction Stop | Out-Null; \
Start-ScheduledTask -TaskName {TASK} -ErrorAction Stop"
))?;
println!("Plugin runner enabled and started ({TASK}).");
Ok(())
}
#[cfg(target_os = "windows")]
fn disable() -> Result<()> {
powershell(&format!(
"Stop-ScheduledTask -TaskName {TASK} -ErrorAction SilentlyContinue; \
Disable-ScheduledTask -TaskName {TASK} -ErrorAction Stop | Out-Null"
))?;
println!("Plugin runner stopped and disabled ({TASK}).");
Ok(())
}
#[cfg(target_os = "windows")]
fn status() -> Result<()> {
let out = powershell_output(&format!(
"$t = Get-ScheduledTask -TaskName {TASK} -ErrorAction SilentlyContinue; \
if ($null -eq $t) {{ 'missing' }} else {{ \
$i = Get-ScheduledTaskInfo -TaskName {TASK} -ErrorAction SilentlyContinue; \
\"$($t.State)\" }}"
));
match out.as_deref().map(str::trim) {
Some("missing") | None => {
println!(
"runner: {TASK}\nstate: not installed\n\nReinstall punktfunk with the \
scripting component to get the plugin runner."
);
}
Some(state) => {
println!("runner: {TASK}\nstate: {state}");
if state.eq_ignore_ascii_case("Disabled") {
println!("\nEnable it with: punktfunk-host plugins enable");
}
}
}
Ok(())
}
/// Resolve powershell by full System32 path rather than PATH — CreateProcess searches the launching
/// EXE's own directory first, so a planted `powershell.exe` beside the host binary would otherwise
/// run with our privileges (security-review 2026-07-17; matches service.rs / pf_vdisplay).
#[cfg(target_os = "windows")]
fn powershell_path() -> String {
std::env::var("SystemRoot")
.map(|r| format!(r"{r}\System32\WindowsPowerShell\v1.0\powershell.exe"))
.unwrap_or_else(|_| "powershell.exe".to_string())
}
#[cfg(target_os = "windows")]
fn powershell(command: &str) -> Result<()> {
let status = Command::new(powershell_path())
.args(["-NoProfile", "-NonInteractive", "-Command", command])
.status()
.context("failed to run powershell")?;
if !status.success() {
bail!(
"the {TASK} scheduled task couldn't be changed — is punktfunk installed with the \
scripting component, and is this prompt elevated?"
);
}
Ok(())
}
#[cfg(target_os = "windows")]
fn powershell_output(command: &str) -> Option<String> {
let out = Command::new(powershell_path())
.args(["-NoProfile", "-NonInteractive", "-Command", command])
.output()
.ok()?;
let s = String::from_utf8_lossy(&out.stdout).trim().to_string();
if s.is_empty() {
None
} else {
Some(s)
}
}
// ---- elevation --------------------------------------------------------------------------------
/// Refuse early, with an actionable message, when an admin-only operation is run unelevated. We do
/// NOT self-elevate via UAC: that spawns a separate console window which closes on exit, hiding
/// bun's install output and any error the user needs to read.
#[cfg(target_os = "windows")]
fn require_elevation(what: &str) -> Result<()> {
if is_elevated() {
return Ok(());
}
// ASCII only: the Windows console's default codepage drops non-ASCII (an em-dash or arrow
// renders as a blank), which mangles the one message the user most needs to read.
bail!(
"{what} needs administrator rights (the plugins directory under %ProgramData%\\punktfunk \
and the runner task are admin-owned).\n\nOpen an elevated prompt: Start -> type \
\"PowerShell\" -> right-click -> Run as administrator, then run this command again."
)
}
/// Does this process have local-Administrator rights *in effect*?
///
/// Deliberately `CheckTokenMembership` against the built-in Administrators group, NOT
/// `GetTokenInformation(TokenElevation)`. `TokenElevation` answers "was this token elevated via
/// UAC", which is not the same question: a restricted/SAFER token derived from an elevated one
/// (`runas /trustlevel:0x20000`) still reports `TokenIsElevated = 1` while the Administrators SID
/// is deny-only, so the guard waved through a process that then failed on the ACL'd plugins dir.
/// Verified on-glass 2026-07-19: under such a token this returns false where `TokenElevation`
/// returned true. `CheckTokenMembership(None, …)` uses the effective token and honors deny-only
/// SIDs — the same test PowerShell's `IsInRole([…]::Administrator)` performs.
#[cfg(target_os = "windows")]
fn is_elevated() -> bool {
use windows::Win32::Foundation::HANDLE;
use windows::Win32::Security::{
AllocateAndInitializeSid, CheckTokenMembership, FreeSid, PSID, SID_IDENTIFIER_AUTHORITY,
};
// The well-known BUILTIN\Administrators SID, S-1-5-32-544: NT authority (5) + the
// SECURITY_BUILTIN_DOMAIN_RID (32) and DOMAIN_ALIAS_RID_ADMINS (544) sub-authorities. Spelled
// out rather than imported so this doesn't depend on which module the crate exposes the RID
// constants from.
const NT_AUTHORITY: SID_IDENTIFIER_AUTHORITY = SID_IDENTIFIER_AUTHORITY {
Value: [0, 0, 0, 0, 0, 5],
};
const BUILTIN_DOMAIN_RID: u32 = 32;
const ALIAS_RID_ADMINS: u32 = 544;
let mut admins = PSID::default();
// SAFETY: AllocateAndInitializeSid is given a valid authority and exactly the 2 sub-authorities
// its count argument declares (the remaining 6 are the API's required zero padding). On success
// it yields a valid PSID that we pass to CheckTokenMembership and free on every path below;
// `None` for the token means "the calling thread's effective token".
unsafe {
if AllocateAndInitializeSid(
&NT_AUTHORITY,
2,
BUILTIN_DOMAIN_RID,
ALIAS_RID_ADMINS,
0,
0,
0,
0,
0,
0,
&mut admins,
)
.is_err()
{
return false;
}
let mut is_member = windows::core::BOOL::default();
let ok = CheckTokenMembership(Some(HANDLE::default()), admins, &mut is_member).is_ok();
FreeSid(admins);
ok && is_member.as_bool()
}
}
// Non-Linux, non-Windows (macOS dev builds): the runner and its service manager don't exist there.
#[cfg(not(any(target_os = "linux", target_os = "windows")))]
fn enable() -> Result<()> {
bail!("the plugin runner is only available on Linux and Windows hosts")
}
#[cfg(not(any(target_os = "linux", target_os = "windows")))]
fn disable() -> Result<()> {
bail!("the plugin runner is only available on Linux and Windows hosts")
}
#[cfg(not(any(target_os = "linux", target_os = "windows")))]
fn status() -> Result<()> {
bail!("the plugin runner is only available on Linux and Windows hosts")
}