/**

* Utility functions.

*/

import * as os from 'os';

/**

* Get the current time.

*

* @returns {String} The current time in the form YYYY-mm-ddTHH:MM:SS+00:00

*/

export function timestamp(): string {

const date = new Date().toISOString();

return date.replace(/\.\d{3}Z/, '+00:00');

}

/**

* Get all IP addresses.

*

* @returns {string[]} Array of addresses.

*/

export function getAddresses(): string[] {

const addresses = new Set<string>();

const ifaces = os.networkInterfaces();

Object.keys(ifaces).forEach((iface) => {

ifaces[iface]!.forEach((addr) => {

const address = addr.address.toLowerCase();

// Filter out link-local addresses.

if (addr.family === 'IPv6' && !address.startsWith('fe80:')) {

addresses.add(`[${address}]`);

} else if (addr.family === 'IPv4' && !address.startsWith('169.254.')) {

addresses.add(address);

}

});

});

return Array.from(addresses).sort();

}