NapCatQQ source snapshot
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/**
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* 服务器时间矫正 - 全局 Hook
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*
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* 保留 Date.now 原始引用,启动后通过 getServerTime 计算偏移量,
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* 直接覆盖 Date.now(),使全局所有调用自动获得矫正后的时间戳。
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*/
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/** 原始 Date.now 引用,不受 hook 影响 */
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export const OriginalDateNow: () => number = Date.now.bind(Date);
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/**
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* 初始化全局时间矫正,覆盖 Date.now()
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* @param getServerTimeFn 获取服务器时间的函数,返回毫秒级时间戳字符串
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* @returns 偏移量(毫秒)
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*/
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export function hookGlobalDateNow (getServerTimeFn: () => string): number {
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const start = OriginalDateNow();
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const serverTimeStr = getServerTimeFn();
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const end = OriginalDateNow();
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const serverTimeMs = parseInt(serverTimeStr, 10);
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if (isNaN(serverTimeMs) || serverTimeMs <= 0) {
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return 0;
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}
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// 补偿网络延迟:假定往返时间对称,服务器时间对应本地时间的中点 (start + end) / 2
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const offsetMs = Math.round(serverTimeMs - (start + end) / 2);
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if (Math.abs(offsetMs) > 5000) {
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Date.now = () => OriginalDateNow() + offsetMs;
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}
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return offsetMs;
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}
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