mira-app-server/dist/serverIPv4.js

Mira Server - standalone server application using mira-app-core

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.initializeServerIPv4 = initializeServerIPv4;
const dgram_1 = require("dgram");
const net_1 = require("net");
const os_1 = require("os");
const ENV_NAME = 'MIRA_SERVER_IPV4';
function getFallbackIPv4() {
    return Object.values((0, os_1.networkInterfaces)())
        .flat()
        .find(address => address?.family === 'IPv4' && !address.internal)?.address || '127.0.0.1';
}
function getDefaultRouteIPv4() {
    return new Promise((resolve, reject) => {
        const socket = (0, dgram_1.createSocket)('udp4');
        const timer = setTimeout(() => {
            socket.close();
            reject(new Error('IPv4 detection timed out'));
        }, 1000);
        socket.once('error', error => {
            clearTimeout(timer);
            socket.close();
            reject(error);
        });
        socket.connect(53, '8.8.8.8', () => {
            const address = socket.address().address;
            clearTimeout(timer);
            socket.close();
            resolve(address);
        });
    });
}
async function initializeServerIPv4() {
    const configured = process.env[ENV_NAME];
    if (configured) {
        if (!(0, net_1.isIPv4)(configured))
            throw new Error(`${ENV_NAME} must be a valid IPv4 address`);
        return configured;
    }
    const detected = await getDefaultRouteIPv4().catch(getFallbackIPv4);
    process.env[ENV_NAME] = detected;
    return detected;
}
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