dnsprove.js

Functionalities

• Fetches DNS information of given domain name and type
• Validates DNS reponses and constructs proofs
• Submits the proofs into DNSSEC(Domain Name System Security Extensions) Oracle smart contract
• Works from both browser and from node.js

Installing

npm install '@ensdomains/dnsprovejs' --save

Usage

var provider = web3.currentProvider;
var DnsProve = require('dnsprove');
var dnsprove = new DnsProve(provider);
var textDomain = '_ens.matoken.xyz';
var dnsResult = await dnsprove.lookup('TXT', textDomain);
var oracle = await dnsprove.getOracle('0x123...');
var proofs = dnsResult.proofs;

if (dnsResult.found) {
  await oracle.submitAll(dnsResult, { from: nonOwner });
} else if (dnsResult.nsec) {
  await oracle.deleteProof(
    'TXT',
    textDomain,
    proofs[proofs.length - 1],
    proofs[proofs.length - 2],
    { from: nonOwner }
  );
} else {
  throw 'DNSSEC is not supported';
}

Alternatively, if you want to submit the proof not only to Oracle contract but also to claim via dnsregistrar, then you can call getAllProofs and pass the result into the proveAndClaim function.

let dnsResult = await dnsprove.lookup('TXT', '_ens.matoken.xyz', address);
let oracle = await dnsprove.getOracle(address);
let data = await oracle.getAllProofs(dnsResult, params);
await registrar.methods
  .proveAndClaim(encodedName, data[0], data[1])
  .send(params);

API

Please refer to the doc

Testing

  npm run test