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// SPDX-FileCopyrightText: 2023 Deminder <tremminder@gmail.com>
// SPDX-License-Identifier: GPL-3.0-or-later
import GLib from 'gi://GLib';
import Gio from 'gi://Gio';
import { gettext as _ } from '../modules/translation.js';
import { logDebug } from '../modules/util.js';
function readLine(stream, cancellable) {
return new Promise((resolve, reject) => {
stream.read_line_async(0, cancellable, (s, res) => {
try {
const line = s.read_line_finish_utf8(res)[0];
if (line !== null) {
resolve(line);
} else {
reject(new Error('No line was read!'));
}
} catch (e) {
reject(e);
}
});
});
}
function quoteEscape(str) {
return str.replaceAll('\\', '\\\\').replaceAll('"', '\\"');
}
/**
* Execute a command asynchronously and check the exit status.
*
* If given, @cancellable can be used to stop the process before it finishes.
*
* @param {string[] | string} argv - a list of string arguments or command line that will be parsed
* @param {Gio.Cancellable} [cancellable] - optional cancellable object
* @param {boolean} shell - run command as shell command
* @param logFunc
* @returns {Promise<void>} - The process success
*/
export function execCheck(
argv,
cancellable = null,
shell = true,
logFunc = undefined
) {
if (!shell && typeof argv === 'string') {
argv = GLib.shell_parse_argv(argv)[1];
}
const isRootProc = argv[0] && argv[0].endsWith('pkexec');
if (shell && Array.isArray(argv)) {
argv = argv.map(c => `"${quoteEscape(c)}"`).join(' ');
}
let cancelId = 0;
let proc = new Gio.Subprocess({
argv: (shell ? ['/bin/sh', '-c'] : []).concat(argv),
flags:
logFunc !== undefined
? Gio.SubprocessFlags.STDOUT_PIPE | Gio.SubprocessFlags.STDERR_PIPE
: Gio.SubprocessFlags.NONE,
});
proc.init(cancellable);
if (cancellable instanceof Gio.Cancellable) {
cancelId = cancellable.connect(() => {
if (logFunc !== undefined) {
if (isRootProc) {
logFunc(`# ${_('Can not cancel root process!')}`);
} else {
logFunc(`[${_('CANCEL')}]`);
}
}
proc.force_exit();
});
}
let stdoutStream = null;
let stderrStream = null;
let readLineCancellable = null;
if (logFunc !== undefined) {
readLineCancellable = new Gio.Cancellable();
stdoutStream = new Gio.DataInputStream({
base_stream: proc.get_stdout_pipe(),
close_base_stream: true,
});
stderrStream = new Gio.DataInputStream({
base_stream: proc.get_stderr_pipe(),
close_base_stream: true,
});
const readNextLine = async (stream, prefix) => {
try {
const line = await readLine(stream, readLineCancellable);
logFunc(prefix + line);
logDebug(line);
await readNextLine(stream, prefix);
} catch {
if (!stream.is_closed()) {
stream.close_async(0, null, (s, sRes) => {
try {
s.close_finish(sRes);
} catch (e) {
logDebug(`[StreamCloseError] ${e}`);
}
});
}
}
};
// read stdout and stderr asynchronously
readNextLine(stdoutStream, '');
readNextLine(stderrStream, '# ');
}
return new Promise((resolve, reject) => {
proc.wait_check_async(null, (p, res) => {
try {
const success = p.wait_check_finish(res);
if (!success) {
let status = p.get_exit_status();
throw new Gio.IOErrorEnum({
code: Gio.io_error_from_errno(status),
message: GLib.strerror(status),
});
}
resolve();
} catch (e) {
reject(e);
} finally {
if (readLineCancellable) readLineCancellable.cancel();
readLineCancellable = null;
if (cancelId > 0) cancellable.disconnect(cancelId);
}
});
});
}
export function sleepUntilDeadline(deadlineSeconds, cancellable) {
return new Promise((resolve, reject) => {
const secondsLeft = () =>
deadlineSeconds - GLib.DateTime.new_now_utc().to_unix();
let timeoutId = 0;
let handlerId = cancellable.connect(() => {
handlerId = 0;
if (timeoutId) {
clearTimeout(timeoutId);
}
reject(new Error('Sleep until deadline cancelled!'));
});
const continueSleep = () => {
timeoutId = setTimeout(() => {
timeoutId = 0;
if (secondsLeft() > 0) {
continueSleep();
} else {
if (handlerId) {
cancellable.disconnect(handlerId);
}
resolve();
}
}, 1000);
};
continueSleep();
});
}
export function installedScriptPath() {
for (const name of [
'shutdowntimerctl',
`shutdowntimerctl-${GLib.get_user_name()}`,
]) {
const standard = GLib.find_program_in_path(name);
if (standard !== null) {
return standard;
}
for (const bindir of ['/usr/local/bin/', '/usr/bin/']) {
const path = bindir + name;
logDebug(`Looking for: ${path}`);
if (Gio.File.new_for_path(path).query_exists(null)) {
return path;
}
}
}
return null;
}
function execControlScript(args, noScriptArgs) {
const installedScript = installedScriptPath();
if (installedScript !== null) {
return execCheck(['pkexec', installedScript].concat(args), null, false);
}
if (noScriptArgs === undefined) {
throw new Error(_('Privileged script installation required!'));
}
return execCheck(noScriptArgs, null, false);
}
export function shutdown(minutes, reboot = false) {
logDebug(`[root-shutdown] ${minutes} minutes, reboot: ${reboot}`);
return execControlScript(
[reboot ? 'reboot' : 'shutdown', `${minutes}`],
['shutdown', reboot ? '-r' : '-P', `${minutes}`]
);
}
function shutdownCancel() {
logDebug('[root-shutdown] cancel');
return execControlScript(['shutdown-cancel'], ['shutdown', '-c']);
}
export function wake(minutes) {
return execControlScript(['wake', `${minutes}`]);
}
export function wakeCancel() {
return execControlScript(['wake-cancel']);
}
export async function stopRootModeProtection(info) {
if (['PowerOff', 'Reboot'].includes(info.mode)) {
await shutdownCancel();
}
}
export async function startRootModeProtection(info) {
if (['PowerOff', 'Reboot'].includes(info.mode)) {
await shutdown(Math.max(0, info.minutes) + 1, info.mode === 'Reboot');
}
}
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