domainlooker/dist/services/whois.js

🕵️ Mission-critical domain intelligence gathering tool with spy-themed interface. Comprehensive WHOIS, DNS, SSL, network analysis, subdomain discovery, and API-ready JSON exports.

import whois from 'whois';
export class WhoisService {
    async lookup(domain) {
        return new Promise((resolve, reject) => {
            whois.lookup(domain, (err, data) => {
                if (err) {
                    reject(err);
                    return;
                }
                const parsed = this.parseWhoisData(data);
                resolve(parsed);
            });
        });
    }
    parseWhoisData(data) {
        const lines = data.split('\n');
        const result = {};
        for (const line of lines) {
            const trimmed = line.trim();
            if (trimmed.match(/registrar:/i)) {
                result.registrar = this.extractValue(trimmed);
            }
            else if (trimmed.match(/creation date|registered on|registration date:/i)) {
                result.registrationDate = this.extractValue(trimmed);
            }
            else if (trimmed.match(/expir|expiry date|expires on:/i)) {
                result.expirationDate = this.extractValue(trimmed);
            }
            else if (trimmed.match(/name server|nserver:/i)) {
                if (!result.nameServers)
                    result.nameServers = [];
                const ns = this.extractValue(trimmed);
                if (ns && !result.nameServers.includes(ns)) {
                    result.nameServers.push(ns);
                }
            }
            else if (trimmed.match(/registrant country:/i)) {
                result.registrantCountry = this.extractValue(trimmed);
            }
            else if (trimmed.match(/status:/i)) {
                if (!result.status)
                    result.status = [];
                const status = this.extractValue(trimmed);
                if (status && !result.status.includes(status)) {
                    result.status.push(status);
                }
            }
        }
        return result;
    }
    extractValue(line) {
        const parts = line.split(':');
        if (parts.length > 1) {
            return parts.slice(1).join(':').trim();
        }
        return undefined;
    }
}
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