72 lines
2.2 KiB
JavaScript
72 lines
2.2 KiB
JavaScript
const { exec } = require('child_process');
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const CHECK_INTERVAL = 30 * 1000; // 每 30 秒检查一次
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const IDLE_LIMIT = 60 * 1000; // 空闲超过 60 秒则触发
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// 封装执行 PowerShell 的方法（使用 UTF-16LE 编码避免引号转义问题）
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function runPs(script) {
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return new Promise((resolve, reject) => {
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const encoded = Buffer.from(script, 'utf16le').toString('base64');
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exec(`powershell -NoProfile -EncodedCommand "${encoded}"`, (err, stdout) => {
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if (err) reject(err);
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else resolve(stdout.trim());
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});
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});
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}
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// 获取当前系统空闲毫秒数
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async function getIdleTime() {
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const ps = `
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Add-Type @"
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using System;
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using System.Runtime.InteropServices;
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public class IdleChecker {
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[DllImport("user32.dll")]
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public static extern bool GetLastInputInfo(ref LASTINPUTINFO plii);
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public struct LASTINPUTINFO {
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public uint cbSize;
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public uint dwTime;
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}
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public static uint GetIdleMilliseconds() {
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LASTINPUTINFO lii = new LASTINPUTINFO();
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lii.cbSize = (uint)Marshal.SizeOf(typeof(LASTINPUTINFO));
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GetLastInputInfo(ref lii);
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return (uint)Environment.TickCount - lii.dwTime;
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}
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}
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"@
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[IdleChecker]::GetIdleMilliseconds()
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`;
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const result = await runPs(ps);
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return parseInt(result, 10);
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}
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// 模拟按下 F15 键（无任何副作用）
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async function pressF15() {
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const ps = `
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$wshell = New-Object -ComObject wscript.shell;
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$wshell.SendKeys('{F15}');
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`;
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await runPs(ps);
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}
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console.log('✅ 防锁屏脚本已启动 (PowerShell 模式)');
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console.log(`⏱️ 检测到空闲 ${IDLE_LIMIT/1000} 秒后，自动模拟按键防止锁屏。`);
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setInterval(async () => {
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try {
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const idleMs = await getIdleTime();
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if (idleMs > IDLE_LIMIT) {
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console.log(`🔄 已空闲 ${Math.round(idleMs/1000)} 秒，模拟 F15 重置计时器...`);
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await pressF15();
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}
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} catch (e) {
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console.error('⚠️ 执行出错:', e.message);
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}
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}, CHECK_INTERVAL);
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// 按 Ctrl+C 退出时提示
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process.on('SIGINT', () => {
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console.log('\n🛑 脚本已停止');
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process.exit(0);
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}); |