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server.js
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server.js
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const publicIp = require('public-ip');
const jsonFile = require('jsonfile');
const { promisify, inspect } = require('util');
const fs = require('fs');
const got = require('got');
const parseStringAsync = promisify(require('xml2js').parseString);
const readFileAsync = promisify(fs.readFile);
const hostFilePath = './hosts.json';
const apiKey = process.env.API_KEY;
const getCurrentIp = async () => {
return await publicIp.v4();
}
const parseHostsFile = async () => {
let records = [];
try {
records = JSON.parse(await readFileAsync(hostFilePath, { encoding: 'utf8' }));
} catch(e) {
console.log(e);
}
return records;
}
const listRecordsForDomain = async (domain, hostName) => {
const uri = `https://www.namesilo.com/api/dnsListRecords?version=1&type=xml&key=${apiKey}&domain=${domain}`;
let response = null;
try {
tempResponse = await got(uri);
response = await parseStringAsync(tempResponse.body);
} catch (e) {
console.log(e);
}
return convertRecordData(response, domain, hostName);
}
const convertRecordData = (response, domain, hostName) => {
let convertedResponse = {};
if(response) {
const replyCode = response.namesilo.reply[0].code[0];
let record = null;
if(hostName !== "")
record = response.namesilo.reply[0].resource_record.find(x => x.host[0] === `${hostName}.${domain}`);
else
record = response.namesilo.reply[0].resource_record.find(x => x.host[0] === `${domain}`);
if(record) {
convertedResponse = {
code: parseInt(replyCode),
type: record.type[0],
record_id: record.record_id[0],
currentIp: record.value[0],
ttl: parseInt(record.ttl[0]),
hostName: hostName,
domain: domain
};
}
}
return convertedResponse;
}
const updateRecord = async (currentHostIp, domainInfo) => {
const uri = `https://www.namesilo.com/api/dnsUpdateRecord?version=1&type=xml&key=${apiKey}&domain=${domainInfo.domain}&rrid=${domainInfo.record_id}&rrhost=${domainInfo.hostName}&rrvalue=${currentHostIp}&rrttl=${domainInfo.ttl}`;
let response = null;
try {
tempResponse = await got(uri);
response = await parseStringAsync(tempResponse.body);
} catch (e) {
console.log(e);
}
return response;
}
const main = async () => {
const currentHostIp = await getCurrentIp();
console.log(`Host IP: ${currentHostIp}`);
const records = await parseHostsFile();
console.log(records);
records.forEach(async (record) => {
record.hostNames.forEach( async (hostName) => {
console.log(`Processing ${hostName}.${record.domainName}`);
const domainInfo = await listRecordsForDomain(record.domainName, hostName);
if(domainInfo && currentHostIp !== domainInfo.currentIp && domainInfo.code === 300) {
console.log(`Updating ${domainInfo.hostName}.${domainInfo.domain} from ${domainInfo.currentIp} to ${currentHostIp}`)
const response = await updateRecord(currentHostIp, domainInfo);
console.log(inspect(response, false, null));
}
});
});
}
(async () => {
try {
await main();
} catch(e) {
console.log(e);
}
})();