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| // 立即执行的异步函数，避免污染全局作用域
(async function () {
'use strict'; // 启用严格模式
// 上报地址（示例地址，实际使用请替换）
const TARGET_URL = 'https://your-analytics-service.com/api/collect';
// 初始化数据收集对象
const collectedData = {
uid: 'UNIQUE_USER_ID', // 应替换为实际用户标识，后续通过 collectedData.uid赋值
app: 'landed', // 应用标识 根据需要自己定义
inprogress: 'loaded', // 初始状态 根据需要自己定义
sdkVersion: '1.1.0-post' // SDK版本 根据需要自己定义
};
/**
* 安全获取对象属性（防崩溃）
* @param {Object} obj - 目标对象
* @param {string} path - 属性路径（如 'a.b.c'）
* @param {*} defaultValue - 默认返回值
*/
function safeGet(obj, path, defaultValue = 'N/A') {
try {
return path.split('.').reduce((acc, part) =>
(acc && acc[part]) ? acc[part] : defaultValue,
obj
) || defaultValue;
} catch (e) {
return defaultValue;
}
}
// 异步操作集合
const dataPromises = [];
try {
// 基础环境信息
collectedData.timestamp = new Date().toISOString();
collectedData.domain = safeGet(window, 'location.hostname');
collectedData.userAgent = safeGet(navigator, 'userAgent');
// 设备类型判断
function getDeviceType(ua) {
if (!ua || ua === 'N/A') return 'N/A';
// 平板设备正则匹配
const isTablet = /(tablet|ipad|playbook|silk)|(android(?!.*mobi))/i.test(ua);
// 移动设备正则匹配
const isMobile = /(mobi|iphone|ipod|blackberry|opera mini|fennec|windows phone|iemobile|psp|symbian|kindle|crios|fxos)/i.test(ua);
return isTablet ? 'tablet' : isMobile ? 'mobile' : 'desktop';
}
collectedData.deviceType = getDeviceType(collectedData.userAgent);
// 操作系统判断
function getOS(ua) {
if (!ua || ua === 'N/A') return 'N/A';
const osMap = [
[/windows nt 10\.0/i, 'Windows 10/11'],
[/windows nt 6\.3/i, 'Windows 8.1'],
[/mac os x/i, 'Mac OS X'],
[/android/i, 'Android'],
[/iphone|ipad|ipod/i, 'iOS'],
[/linux/i, 'Linux']
];
return osMap.find(([regex]) => regex.test(ua))?.[1] || 'Unknown';
}
collectedData.os = getOS(collectedData.userAgent);
// 网络连接类型检测
function getConnectionType() {
if (!navigator.connection) return 'N/A_conn_api_unavailable';
const conn = navigator.connection;
let type = '';
type += conn.effectiveType ? `${conn.effectiveType}` : '';
type += conn.type ? `_${conn.type}` : '';
type += conn.downlink ? `_${conn.downlink}Mbps` : '';
type += conn.rtt ? `_${conn.rtt}ms` : '';
return type || 'unknown';
}
collectedData.connectionType = getConnectionType();
// 其他环境参数
collectedData.language = safeGet(navigator, 'language');
collectedData.referrer = document.referrer || 'direct_access';
collectedData.screenWidth = safeGet(window, 'screen.width');
collectedData.screenHeight = safeGet(window, 'screen.height');
collectedData.viewportWidth = Math.max(
window.innerWidth,
safeGet(document.documentElement, 'clientWidth'),
safeGet(document.body, 'clientWidth')
);
collectedData.viewportHeight = Math.max(
window.innerHeight,
safeGet(document.documentElement, 'clientHeight'),
safeGet(document.body, 'clientHeight')
);
// WebRTC IP检测（需注意隐私合规）
const ipPromise = new Promise((resolve) => {
try {
const pc = new RTCPeerConnection({
iceServers: [
{ urls: 'stun:stun.l.google.com:19302' }
],
iceCandidatePoolSize: 0 // 减少候选收集
});
// 创建数据通道触发候选收集
pc.createDataChannel('');
pc.createOffer()
.then(offer => pc.setLocalDescription(offer))
.catch(() => resolve('N/A_webrtc_offer_failed'));
// 超时处理
const timeoutId = setTimeout(() => {
pc.close();
resolve('N/A_webrtc_timeout');
}, 2000);
// ICE候选处理
pc.onicecandidate = (ice) => {
if (!ice.candidate) {
clearTimeout(timeoutId);
pc.close();
return;
}
const ipRegex = /([a-f0-9:]+(%\w+)?|\d{1,3}(\.\d{1,3}){3})/i;
const match = ice.candidate.candidate.match(ipRegex);
if (match && ice.candidate.type === 'srflx') {
clearTimeout(timeoutId);
resolve(match[1]);
pc.close();
}
};
} catch (e) {
resolve('N/A_webrtc_error');
}
}).then(ip => {
collectedData.ipAddress = ip || 'N/A_webrtc_no_ip';
});
dataPromises.push(ipPromise);
} catch (error) {
// 错误处理（保持数据结构完整）
['domain', 'userAgent', 'deviceType', 'os', 'connectionType', 'language']
.forEach(field => collectedData[field] = 'N/A_init_error');
}
// 性能数据采集
const performancePromise = new Promise(resolve => {
function collectPerf() {
try {
const perf = window.performance;
if (!perf) return;
// 使用更新的PerformanceNavigationTiming API
const navEntry = perf.getEntriesByType('navigation')[0];
if (navEntry) {
collectedData.dnsLookupTime = navEntry.domainLookupEnd - navEntry.domainLookupStart;
collectedData.tcpConnectTime = navEntry.connectEnd - navEntry.connectStart;
collectedData.ttfb = navEntry.responseStart - navEntry.requestStart;
collectedData.domContentLoaded = navEntry.domContentLoadedEventEnd;
}
// 首屏绘制指标
if (window.PerformanceObserver) {
const paintObserver = new PerformanceObserver(list => {
list.getEntries().forEach(entry => {
if (entry.name === 'first-paint') {
collectedData.firstPaint = entry.startTime;
}
if (entry.name === 'first-contentful-paint') {
collectedData.FCP = entry.startTime;
}
});
});
paintObserver.observe({ entryTypes: ['paint'] });
}
// 资源加载统计
const resources = perf.getEntriesByType('resource');
if (resources) {
collectedData.totalResources = resources.length;
collectedData.resourceLoadTime = resources.reduce(
(sum, r) => sum + r.duration, 0
);
}
} catch (e) {
console.error('Performance collection error:', e);
}
}
// 加载完成后收集
if (document.readyState === 'complete') {
collectPerf();
resolve();
} else {
window.addEventListener('load', () => {
collectPerf();
resolve();
});
}
});
dataPromises.push(performancePromise);
// 最终数据上报
Promise.allSettled(dataPromises).finally(() => {
sendData();
});
function sendData() {
// 数据序列化
const reportData = JSON.stringify(collectedData);
// Beacon API优先
const sendSuccess = navigator.sendBeacon(
TARGET_URL,
new Blob([reportData], { type: 'application/json' })
);
// 失败降级到fetch
if (!sendSuccess) {
fetch(TARGET_URL, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: reportData,
keepalive: true, // 允许在页面卸载后发送
mode: 'no-cors' // 需要服务端支持CORS
}).catch(e => console.error('Report failed:', e));
}
}
// 按钮点击跟踪，注意替换为自己的按钮ID
const trackButton = document.getElementById('myCustomButton');
if (trackButton) {
trackButton.addEventListener('click', () => {
collectedData.inprogress = 'clicked';
sendData();
});
}
})();
|