whoisens-lib/dist/esm/lib/ReverseResolver.js

Whois for ENS (Ethereum Name Service) lookup service

import utils from '../utils/index.js';
import jsonRCP from '../utils/json-rpc.js';
import ENSRoot from './ENSRoot.js';
import BaseClass from './BaseClass.js';
import { ResolverNotSetError, ResolveType } from './types.js';
export default class ReverseResolver extends BaseClass {
    constructor(address) {
        super();
        this.address = address;
        this.reverseAddress = this.getReverseAddress(utils.remove0x(this.address));
        this.reverseAddressNode = utils.node(this.reverseAddress);
    }
    async getName() {
        await this.init();
        if (!utils.isResult(this.contractAddress))
            throw new ResolverNotSetError();
        const method = 'name(bytes32)';
        const methodId = utils.getMethodID(method);
        const reverseAddressNode = utils.remove0x(this.reverseAddressNode);
        const data = [methodId, reverseAddressNode].join('');
        const result = await jsonRCP.getInstance().makeRequest({
            to: this.contractAddress,
            data
        });
        return this.returnResult({
            contractAddress: this.contractAddress,
            contractMethod: method,
            payload: data,
            parameters: {
                methodId,
                reverseAddressNode
            },
            jsonRCPResult: result,
            result: utils.hexToAscii(utils.byteToString(result.result, true)),
            data: {
                resolveType: ResolveType.reverse,
                reverseAddress: this.reverseAddress
            }
        });
    }
    async findContractAddress() {
        const ensRoot = new ENSRoot();
        return (await ensRoot.getResolver(this.reverseAddress)).result;
    }
    getReverseAddress(address) {
        return `${address}.${ReverseResolver.REVERSE_DOMAIN}`;
    }
    async init() {
        this.contractAddress = await this.findContractAddress();
    }
}
ReverseResolver.REVERSE_DOMAIN = 'addr.reverse';
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