【多站点独立配置】智能状态同步 + 跨Tab保活控制（每个网站独立设置）+AJAX心跳
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// ==UserScript==
// @name 网页保活助手
// @namespace http://tampermonkey.net/
// @version 5.2.0
// @description 【多站点独立配置】智能状态同步 + 跨Tab保活控制（每个网站独立设置）+AJAX心跳
// @author DavidZhang53
// @match *://*/*
// @grant GM_registerMenuCommand
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_addStyle
// @grant GM_xmlhttpRequest
// @license MIT
// ==/UserScript==
(function () {
'use strict';
// 生成带网站标识的存储键
const currentSite = window.location.hostname;
const getSiteKey = (key) => `${currentSite}_${key}`;
// 配置存储（每个网站独立）
const CONFIG = {
keepAliveEnabled: GM_getValue(getSiteKey('keepAliveEnabled'), true),
keepAliveInterval: GM_getValue(getSiteKey('keepAliveInterval'), 300),
inactivityLimit: GM_getValue(getSiteKey('inactivityLimit'), 600),
forceRefreshEnabled: GM_getValue(getSiteKey('forceRefreshEnabled'), false),
lastActivity: GM_getValue(getSiteKey('lastActivity'), Date.now())
};
// 运行时状态
let state = {
refreshTimer: null,
keepAliveTimer: null,
pendingRefresh: false
};
// 视觉样式
GM_addStyle(`
#control-container {
position: fixed;
top: 0;
left: 0;
width: 50px;
height: 50px;
z-index: 1000000;
cursor: pointer;
}
#control-container:hover #control-panel {
display: block !important;
}
#control-panel {
display: none;
position: absolute;
left: 0;
top: 50px;
background: rgba(255,255,255,0.98);
border-radius: 8px;
padding: 15px;
box-shadow: 0 4px 10px rgba(0,0,0,0.2);
width: 320px;
z-index: 1000001;
}
#refresh-warning {
position: fixed;
bottom: 20px;
right: 20px;
background: lightyellow;
color: #000;
padding: 20px 30px;
border-radius: 10px;
font-size: 18px;
z-index: 999999;
text-align: center;
box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}
.status-indicator {
position: fixed;
bottom: 10px;
right: 10px;
padding: 5px 10px;
border-radius: 3px;
font-size: 12px;
z-index: 999998;
}
.active-status { background: #28a745; color: white; }
.inactive-status { background: #dc3545; color: white; }
`);
// 控制面板
function createControlPanel() {
const container = document.createElement('div');
container.id = 'control-container';
const panel = document.createElement('div');
panel.id = 'control-panel';
panel.innerHTML = `
<h3 style="margin:0 0 15px 0;">保活控制中心 - ${currentSite}</h3>
<label style="display:block; margin:10px 0;">
<input type="checkbox" id="keepAliveEnabled" ${CONFIG.keepAliveEnabled ? 'checked' : ''}>
启用智能保活
</label>
<label style="display:block; margin:10px 0;">
保活间隔(秒):
<input type="number" id="keepAliveInterval" value="${CONFIG.keepAliveInterval}" style="width:80px;">
</label>
<label style="display:block; margin:10px 0;">
无操作超时(秒):
<input type="number" id="inactivityLimit" value="${CONFIG.inactivityLimit}" style="width:80px;">
</label>
<label style="display:block; margin:10px 0;">
<input type="checkbox" id="forceRefreshEnabled" ${CONFIG.forceRefreshEnabled ? 'checked' : ''}>
强制全页刷新
</label>
<div style="margin-top:15px; color:#666; font-size:12px;">
当前状态: <span id="statusText">检测中...</span>
</div>
`;
container.appendChild(panel);
document.body.appendChild(container);
const inputs = panel.querySelectorAll('input, select');
inputs.forEach(input => {
input.addEventListener('change', handleSettingChange);
});
updateStatusDisplay();
}
// 设置变更处理
function handleSettingChange(e) {
const target = e.target;
switch(target.id) {
case 'keepAliveEnabled':
CONFIG.keepAliveEnabled = target.checked;
GM_setValue(getSiteKey('keepAliveEnabled'), target.checked);
if (!target.checked) stopKeepAlive();
break;
case 'keepAliveInterval':
CONFIG.keepAliveInterval = Math.max(10, parseInt(target.value) || 300);
GM_setValue(getSiteKey('keepAliveInterval'), CONFIG.keepAliveInterval);
resetKeepAlive();
break;
case 'inactivityLimit':
CONFIG.inactivityLimit = Math.max(60, parseInt(target.value) || 600);
GM_setValue(getSiteKey('inactivityLimit'), CONFIG.inactivityLimit);
break;
case 'forceRefreshEnabled':
CONFIG.forceRefreshEnabled = target.checked;
GM_setValue(getSiteKey('forceRefreshEnabled'), target.checked);
break;
}
updateStatusDisplay();
}
// 核心保活逻辑
function checkActivityState() {
const now = Date.now();
const elapsed = now - CONFIG.lastActivity;
const isInactive = elapsed > CONFIG.inactivityLimit * 1000;
if ((document.hidden || isInactive) && !state.keepAliveTimer) {
startKeepAlive();
} else if (!document.hidden && !isInactive && state.keepAliveTimer) {
stopKeepAlive();
}
}
function startKeepAlive() {
if (!CONFIG.keepAliveEnabled) return;
performKeepAlive();
state.keepAliveTimer = setInterval(() => {
performKeepAlive();
}, CONFIG.keepAliveInterval * 1000);
}
function performKeepAlive() {
GM_xmlhttpRequest({
method: 'HEAD',
url: window.location.href,
onload: (res) => {
if (CONFIG.forceRefreshEnabled && shouldForceRefresh()) {
scheduleForceRefresh();
}
},
onerror: (err) => {
if (CONFIG.forceRefreshEnabled && shouldForceRefresh()) {
scheduleForceRefresh();
}
}
});
}
function shouldForceRefresh() {
return document.hidden || (Date.now() - CONFIG.lastActivity > CONFIG.inactivityLimit * 1000);
}
// 刷新控制相关
function scheduleForceRefresh() {
if (state.pendingRefresh) return;
state.pendingRefresh = true;
showRefreshWarning();
state.refreshTimer = setTimeout(() => {
location.reload();
}, CONFIG.keepAliveInterval * 1000);
document.addEventListener('visibilitychange', handleVisibilityChange);
}
function handleVisibilityChange() {
if (!document.hidden && state.pendingRefresh) {
cancelRefresh();
stopKeepAlive();
}
}
function cancelRefresh() {
clearTimeout(state.refreshTimer);
state.refreshTimer = null;
state.pendingRefresh = false;
const warning = document.getElementById('refresh-warning');
warning && warning.remove();
}
function showRefreshWarning() {
const warning = document.createElement('div');
warning.id = 'refresh-warning';
warning.innerHTML = `
<div>系统即将自动刷新</div>
<div style="font-size:14px; margin-top:8px;">
倒计时: <span id="refreshCountdown">${CONFIG.keepAliveInterval}</span>秒
</div>
`;
document.body.appendChild(warning);
startCountdown();
}
function startCountdown() {
const countdownEl = document.getElementById('refreshCountdown');
let remaining = CONFIG.keepAliveInterval;
const timer = setInterval(() => {
remaining--;
countdownEl.textContent = remaining;
if (remaining <= 0) clearInterval(timer);
}, 1000);
}
// 辅助功能
function stopKeepAlive() {
clearInterval(state.keepAliveTimer);
state.keepAliveTimer = null;
cancelRefresh();
}
function resetKeepAlive() {
stopKeepAlive();
checkActivityState();
}
function updateStatusDisplay() {
const statusText = document.querySelector('#statusText');
if (!statusText) return;
statusText.textContent = state.keepAliveTimer
? `工作中 (间隔:${CONFIG.keepAliveInterval}秒)`
: '待机中 (检测无操作状态)';
}
// 事件监听
function initEventListeners() {
['mousemove', 'keydown', 'click'].forEach(event => {
document.addEventListener(event, () => {
CONFIG.lastActivity = Date.now();
GM_setValue(getSiteKey('lastActivity'), CONFIG.lastActivity);
if (!document.hidden) {
cancelRefresh();
stopKeepAlive();
}
checkActivityState();
});
});
document.addEventListener('visibilitychange', () => {
checkActivityState();
updateStatusDisplay();
});
setInterval(() => {
checkActivityState();
updateStatusDisplay();
}, 1000);
}
// 初始化
function init() {
if (document.body) {
createControlPanel();
initEventListeners();
checkActivityState();
} else {
window.addEventListener('DOMContentLoaded', init);
}
}
init();
})();