hacking-show/get-isp.js

const { spawn } = require("child_process");

module.exports = async function getISP(ip_address) {
  return new Promise((resolve, reject) => {
    if (ip_address.startsWith("::ffff:")) {
      ip_address = ip_address.replace("::ffff:", "");
    }
    const task = spawn("whois", [ip_address]);
    let data = "";
    task.stdout.on("data", (d) => {
      data += d.toString();
    });
    task.on("close", () => {
      resolve(
        data
          .split("\n")
          .filter(
            (l) =>
              l.includes("role:") ||
              l.includes("org-name:") ||
              l.includes("country")
          )
          .map((l) => l.replace("role:", ""))
          .join("|")
      );
    });
    task.on("error", () => reject());
  });
};