35 lines
961 B
TypeScript
Vendored
35 lines
961 B
TypeScript
Vendored
import { exec } from 'child_process';
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import { promisify } from 'util';
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import dns from 'dns';
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const resolve = promisify(dns.resolve);
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async function isChinaDomain(domain: string): Promise<boolean> {
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try {
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// 解析域名为IP地址
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const [ip] = await resolve(domain);
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return await isChinaIP(ip);
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} catch (error) {
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// 域名无法解析，返回false
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return false;
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}
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}
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async function isChinaIP(ip: string): Promise<boolean> {
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return new Promise((resolve, reject) => {
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exec(`ping -c 1 -w 1 ${ip}`, (error, stdout, stderr) => {
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if (error) {
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// 命令执行出错，返回false
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resolve(false);
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} else {
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// 解析输出信息，提取延迟值
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const match = stdout.match(/time=(\d+\.\d+) ms/);
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const latency = match ? parseFloat(match[1]) : 0;
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// 判断延迟是否超过100ms
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resolve(latency > 100);
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}
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});
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});
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}
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export { isChinaDomain, isChinaIP }; |