node-rdap/dist/tsc/cli.js

Node RDAP client for Whois lookup in Node JS.

#!/usr/bin/env node
import * as readline from "node:readline";
import { InvalidArgumentError, program } from "commander";
import { autnum, domain, ip } from "./client.js";
/**
 * This is a helper to write the output or error of a function to the console
 * @param fn - The function to try to run
 * @param arg - Argument to pass to the function
 */
const doCommand = async (fn, arg) => {
    try {
        console.log(await fn(arg));
    }
    catch (e) {
        console.error(e.toString());
    }
};
/**
 * This is a helper to convert a string to an integer
 * @param value - The string to conver to integer
 * @returns The value as an integer
 * @throws {@link InvalidArgumentError} if value is NaN
 */
const parseArgInt = (value) => {
    // We're using parseInt rather than "1*x", for readability
    const parsedValue = parseInt(value, 10);
    if (Number.isNaN(parsedValue)) {
        throw new InvalidArgumentError("Not a number.");
    }
    return parsedValue;
};
// Setup commander
program
    .name("node-rdap")
    .description("CLI for querying rdap via nodejs")
    .version("0.3.0");
// Register domain command with commander
program
    .command("domain")
    .description("Lookup a domains whois info via RDAP")
    .argument("<domain>", "The domain to lookup")
    .usage('mydomain.com')
    .action(async (arg) => doCommand(domain, arg));
// Register ip command with commander
program
    .command("ip")
    .description("Lookup a domains whois info via RDAP")
    .argument("<ip>", "The IP Address to lookup")
    .usage('1.1.1.1')
    .action(async (arg) => doCommand(ip, arg));
// Register autnum command with commander
program
    .command("autnum")
    .description("Lookup a domains whois info via RDAP")
    .argument("<autnum>", "The Autonomous System Number to lookup", parseArgInt)
    .usage('1')
    .action(async (arg) => doCommand(autnum, arg));
// If the CLI was called with a command, parse it and return.
if (process.argv.length > 2) {
    program.parse();
}
else {
    // If the CLI was called without commands, open interactive mode.
    program.exitOverride();
    const rl = readline.createInterface({
        input: process.stdin,
        output: process.stdout,
        terminal: true,
    });
    // Treat each line as a command
    rl.on("line", (line) => {
        const commands = line.split(" ");
        try {
            // Run the command
            program.parse(commands, { from: "user" });
        }
        catch {
            // Show the help info if command doesn't exist
            console.log(program.helpInformation());
        }
    });
}
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