khamba/dist/functions/ip.js

A cli tool for sharing files through local network.

import * as os from 'os';
import { useEffect } from 'react';
import { $baseInfo } from '../stores/baseStore.js';
const isPrivateIP = (ip) => {
    return ip.startsWith('192.168');
};
const calculateBroadcastAddress = (ipAddress, subnetMask) => {
    const ipBinary = ipAddress
        .split('.')
        .map(part => parseInt(part, 10).toString(2).padStart(8, '0'))
        .join('');
    const maskBinary = subnetMask
        .split('.')
        .map(part => parseInt(part, 10).toString(2).padStart(8, '0'))
        .join('');
    const broadcastBinary = ipBinary
        .split('')
        .map((bit, index) => parseInt(bit, 2) | (maskBinary[index] === '0' ? 1 : 0))
        .join('');
    const broadcastParts = [];
    for (let i = 0; i < 4; i++) {
        broadcastParts.push(parseInt(broadcastBinary.substr(i * 8, 8), 2));
    }
    return broadcastParts.join('.');
};
const getLocalIP = () => {
    const interfaces = os.networkInterfaces();
    const addresses = [];
    let address = null;
    let subnetMask = null;
    for (const iface in interfaces) {
        for (const details of interfaces[iface]) {
            if (details.family === 'IPv4' && !details.internal) {
                addresses.push(details.address);
                if (isPrivateIP(details.address)) {
                    address = details.address;
                    subnetMask = details.netmask;
                }
            }
        }
    }
    return {
        address,
        subnetMask,
        addresses,
    };
};
const useLocalIP = () => {
    useEffect(() => {
        const { address, subnetMask } = getLocalIP();
        if (address && subnetMask) {
            const broadcastAddress = calculateBroadcastAddress(address, subnetMask);
            $baseInfo.set({
                ...$baseInfo.get(),
                MY_IP: address,
                BROADCAST_ADDR: broadcastAddress,
            });
        }
    }, []);
    return;
};
export default useLocalIP;