阿里云 动态ddns

环境
nodejs版本不低于10.16
系统window，centos 均可

package.json

{
  "name": "aliyun-ddns",
  "version": "2.1.0",
  "main": "ddns.js",
  "scripts": {
    "start": "node ddns.js"
  },
  "author": "luoyefe",
  "license": "MIT",
  "dependencies": {
    "@alicloud/pop-core": "^1.7.13",
    "axios": "^0.20.0"
  },
  "description": "借助阿里云解析API实现DDNS"
}

nodejs代码

const config={
    accessKeyId: "666666", // 你的阿里云AccessKey ID
    accessKeySecret: "888888",// 你的阿里云AccessKey Secret
    DomainName:  'google.com', //你的域名
    RRKeyWord: 'ddns',  // 子域名
}

const Core = require('@alicloud/pop-core');
const axios = require('axios');

const client = new Core({
    accessKeyId: config.accessKeyId,
    accessKeySecret: config.accessKeySecret,
    endpoint: 'http://alidns.aliyuncs.com',
    apiVersion: '2015-01-09'
});

// 获取当前公网IP地址，用多个API ,防止一个失效后，有另外的进行替代
async function getPublicIP() {
    const ipApis = [
        'http://api.ipify.org?format=json',
        'http://ipinfo.io/json',
        'http://icanhazip.com',
        'http://ip-api.com/json'
    ];

    for (const api of ipApis) {
        try {
            const response = await axios.get(api);
            const ip = response.data.ip || response.data; // 处理不同API的返回结构
            console.log(`成功从 ${api} 获取公网IP: ${ip}`);
            return ip;
        } catch (error) {
            console.error(`从 ${api} 获取公网IP失败:`, error);
        }
    }

    throw new Error('所有IP查询API均不可用');
}


// 获取指定域名和子域名的DNS记录ID及其值
async function getRecordIdAndValue(domainName, rr) {
    return new Promise((resolve, reject) => {
        client.request('DescribeDomainRecords', {
            DomainName: domainName,
            RRKeyWord: rr
        }, { method: 'POST' }).then((result) => {
            const record = result.DomainRecords.Record.find(r => r.RR === rr);
            if (record) {
                resolve({ recordId: record.RecordId, value: record.Value });
            } else {
                reject(new Error('没有找到对应的记录'));
            }
        }, (ex) => {
            reject(ex);
        });
    });
}


// 更新DNS记录
async function updateDNSRecord(recordId, ip,rr) {
    return new Promise((resolve, reject) => {
        client.request('UpdateDomainRecord', {
            RecordId: recordId,
            RR: rr,
            Type: 'A',
            Value: ip
        }, { method: 'POST' }).then((result) => {
            resolve(result);
        }, (ex) => {
            console.log("client.request失败",ex)
            reject(ex);
        });
    });
}


// 主程序
(async () => {
    try {
        let domainName=config.DomainName;
        let rr=config.RRKeyWord;
        const ip = await getPublicIP();
        console.log('当前公网IP地址:', ip);

        const { recordId, value } = await getRecordIdAndValue(domainName, rr);
        console.log('DNS记录ID:', recordId);
        console.log('当前DNS记录值:', value);

        if (value !== ip) {
            const result = await updateDNSRecord(recordId, ip,rr);
            console.log('DNS记录更新成功:', result);
        } else {
            console.log('DNS记录值未变化，无需更新');
        }
    } catch (error) {
        console.error('操作失败:', error);
    }
})();