lisk-framework
Version:
Lisk blockchain application platform
37 lines • 1.09 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.lookupPeersIPs = void 0;
const net_1 = require("net");
const dns_1 = require("dns");
const lookupPromise = async (hostname, options) => new Promise((resolve, reject) => {
(0, dns_1.lookup)(hostname, options, (err, address) => {
if (err) {
return reject(err);
}
return resolve(address);
});
});
const lookupPeersIPs = async (peersList, enabled) => {
if (!enabled) {
return [];
}
return Promise.all(peersList.map(async (peer) => {
const { ip } = peer;
if ((0, net_1.isIPv4)(ip)) {
return peer;
}
try {
const address = await lookupPromise(ip, { family: 4 });
return {
...peer,
ip: address,
};
}
catch (err) {
console.error(`Failed to resolve peer domain name ${ip} to an IP address`);
return peer;
}
}));
};
exports.lookupPeersIPs = lookupPeersIPs;
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