54 lines
1.5 KiB
TypeScript
54 lines
1.5 KiB
TypeScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { networkInterfaces } from 'os';
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const invalidMacAddresses = new Set([
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'00:00:00:00:00:00',
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'ff:ff:ff:ff:ff:ff',
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'ac:de:48:00:11:22'
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]);
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function validateMacAddress(candidate: string): boolean {
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const tempCandidate = candidate.replace(/\-/g, ':').toLowerCase();
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return !invalidMacAddresses.has(tempCandidate);
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}
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export function getMac(): Promise<string> {
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return new Promise(async (resolve, reject) => {
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const timeout = setTimeout(() => reject('Unable to retrieve mac address (timeout after 10s)'), 10000);
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try {
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resolve(await doGetMac());
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} catch (error) {
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reject(error);
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} finally {
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clearTimeout(timeout);
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}
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});
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}
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function doGetMac(): Promise<string> {
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return new Promise((resolve, reject) => {
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try {
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const ifaces = networkInterfaces();
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for (let name in ifaces) {
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const networkInterface = ifaces[name];
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if (networkInterface) {
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for (const { mac } of networkInterface) {
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if (validateMacAddress(mac)) {
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return resolve(mac);
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}
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}
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}
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}
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reject('Unable to retrieve mac address (unexpected format)');
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} catch (err) {
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reject(err);
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}
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});
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}
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