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优化github.com的IP查询 

直接返回内置IP集，使用距离较近的IP地址
pull/311/head
璀璨梦星 2024-05-10 15:55:20 +08:00 committed by GitHub
parent 860470af61
commit a26d9cb430
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1 changed files with 26 additions and 18 deletions
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40
packages/mitmproxy/src/lib/dns/https.js
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@ -1,33 +1,41 @@
const { promisify } = require('util') const { promisify } = require('util');
const doh = require('dns-over-http') const doh = require('dns-over-http');
const BaseDNS = require('./base') const BaseDNS = require('./base');
const log = require('../../utils/util.log') const log = require('../../utils/util.log');
const dohQueryAsync = promisify(doh.query) const dohQueryAsync = promisify(doh.query);
module.exports = class DNSOverHTTPS extends BaseDNS { module.exports = class DNSOverHTTPS extends BaseDNS {
constructor(dnsServer) { constructor(dnsServer) {
super() super();
this.dnsServer = dnsServer this.dnsServer = dnsServer;
} }
async _lookup(hostname) { async _lookup(hostname) {
// 直接判断域名是否为example.com
if (hostname === 'github.com') {
log.info('域名github.com使用内置IP集');
// 返回预设的IP地址集
return ['20.27.177.113', '20.205.243.166', '20.200.245.247'];
// 20.27.177.113日本(三网平均延时88MS(三网优秀)) 20.205.243.166新加坡(三网平均延时96MS(电信联通106.5平均延时，移动平均77MS)) 20.200.245.247韩国(三网平均108ms(移动平均120ms))
}
try { try {
const result = await dohQueryAsync({ url: this.dnsServer }, [{ type: 'A', name: hostname }]) const result = await dohQueryAsync({ url: this.dnsServer }, [{ type: 'A', name: hostname }]);
if (result.answers.length === 0) { if (result.answers.length === 0) {
// 说明没有获取到ip // 说明没有获取到ip
log.info('该域名没有ip地址解析:', hostname) log.info('该域名没有ip地址解析:', hostname);
return [] return [];
} }
const ret = result.answers.filter(item => { return item.type === 'A' }).map(item => { return item.data }) const ret = result.answers.filter(item => item.type === 'A').map(item => item.data);
if (ret.length === 0) { if (ret.length === 0) {
log.info('该域名没有IPv4地址解析:', hostname) log.info('该域名没有IPv4地址解析:', hostname);
} else { } else {
log.info('获取到域名地址：', hostname, JSON.stringify(ret)) log.info('获取到域名地址：', hostname, JSON.stringify(ret));
} }
return ret return ret;
} catch (e) { } catch (e) {
log.warn('DNS query error:', hostname, ', dns:', this.dnsServer, ', error:', e) log.warn('DNS query error:', hostname, ', dns:', this.dnsServer, ', error:', e);
return [] return [];
} }
} }
} }