Last change
on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
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File size:
1.3 KB
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[6a3a178] | 1 | 'use strict';
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| 2 | const os = require('os');
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| 3 | const defaultGateway = require('default-gateway');
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| 4 | const ipaddr = require('ipaddr.js');
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| 5 |
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| 6 | function findIp(gateway) {
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| 7 | const interfaces = os.networkInterfaces();
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| 8 | const gatewayIp = ipaddr.parse(gateway);
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| 9 | let ip;
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| 10 |
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| 11 | // Look for the matching interface in all local interfaces
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| 12 | Object.keys(interfaces).some(name => {
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| 13 | return interfaces[name].some(addr => {
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| 14 | const prefix = ipaddr.parse(addr.netmask).prefixLengthFromSubnetMask();
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| 15 | const net = ipaddr.parseCIDR(`${addr.address}/${prefix}`);
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| 16 |
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| 17 | if (net[0] && net[0].kind() === gatewayIp.kind() && gatewayIp.match(net)) {
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| 18 | ip = net[0].toString();
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| 19 | }
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| 20 |
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| 21 | return Boolean(ip);
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| 22 | });
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| 23 | });
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| 24 |
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| 25 | return ip;
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| 26 | }
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| 27 |
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| 28 | function promise(family) {
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| 29 | return defaultGateway[family]().then(result => {
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| 30 | return findIp(result.gateway) || null;
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| 31 | }).catch(() => null);
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| 32 | }
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| 33 |
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| 34 | function sync(family) {
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| 35 | try {
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| 36 | const result = defaultGateway[family].sync();
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| 37 | return findIp(result.gateway) || null;
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| 38 | } catch (error) {
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| 39 | return null;
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| 40 | }
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| 41 | }
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| 42 |
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| 43 | const internalIp = {};
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| 44 | internalIp.v6 = () => promise('v6');
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| 45 | internalIp.v4 = () => promise('v4');
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| 46 | internalIp.v6.sync = () => sync('v6');
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| 47 | internalIp.v4.sync = () => sync('v4');
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| 48 |
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| 49 | module.exports = internalIp;
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| 50 | // TODO: Remove this for the next major release
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| 51 | module.exports.default = internalIp;
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