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Copy pathmacAddress.ts
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53 lines (46 loc) · 1.45 KB
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { networkInterfaces } from 'os';
const invalidMacAddresses = new Set([
'00:00:00:00:00:00',
'ff:ff:ff:ff:ff:ff',
'ac:de:48:00:11:22'
]);
function validateMacAddress(candidate: string): boolean {
const tempCandidate = candidate.replace(/\-/g, ':').toLowerCase();
return !invalidMacAddresses.has(tempCandidate);
}
export function getMac(): Promise<string> {
return new Promise(async (resolve, reject) => {
const timeout = setTimeout(() => reject('Unable to retrieve mac address (timeout after 10s)'), 10000);
try {
resolve(await doGetMac());
} catch (error) {
reject(error);
} finally {
clearTimeout(timeout);
}
});
}
function doGetMac(): Promise<string> {
return new Promise((resolve, reject) => {
try {
const ifaces = networkInterfaces();
for (let name in ifaces) {
const networkInterface = ifaces[name];
if (networkInterface) {
for (const { mac } of networkInterface) {
if (validateMacAddress(mac)) {
return resolve(mac);
}
}
}
}
reject('Unable to retrieve mac address (unexpected format)');
} catch (err) {
reject(err);
}
});
}