"use strict";
|
|
const execa = require("execa");
|
const ipRegex = require("ip-regex");
|
|
const gwArgs = "path Win32_NetworkAdapterConfiguration where IPEnabled=true get DefaultIPGateway,Index /format:table".split(" ");
|
const ifArgs = "path Win32_NetworkAdapter get Index,NetConnectionID /format:table".split(" ");
|
|
const parse = (gwTable, ifTable, family) => {
|
let gateway, gwid, result;
|
|
(gwTable || "").trim().split("\n").splice(1).some(line => {
|
const results = line.trim().split(/} +/) || [];
|
const gw = results[0];
|
const id = results[1];
|
gateway = (ipRegex[family]().exec((gw || "").trim()) || [])[0];
|
if (gateway) {
|
gwid = id;
|
return true;
|
}
|
});
|
|
(ifTable || "").trim().split("\n").splice(1).some(line => {
|
const i = line.indexOf(" ");
|
const id = line.substr(0, i).trim();
|
const name = line.substr(i + 1).trim();
|
if (id === gwid) {
|
result = {gateway, interface: name ? name : null};
|
return true;
|
}
|
});
|
|
if (!result) {
|
throw new Error("Unable to determine default gateway");
|
}
|
|
return result;
|
};
|
|
const spawnOpts = {
|
windowsHide: true,
|
};
|
|
const promise = family => {
|
return Promise.all([
|
execa.stdout("wmic", gwArgs, spawnOpts),
|
execa.stdout("wmic", ifArgs, spawnOpts),
|
]).then(results => {
|
const gwTable = results[0];
|
const ifTable = results[1];
|
|
return parse(gwTable, ifTable, family);
|
});
|
};
|
|
const sync = family => {
|
const gwTable = execa.sync("wmic", gwArgs, spawnOpts).stdout;
|
const ifTable = execa.sync("wmic", ifArgs, spawnOpts).stdout;
|
|
return parse(gwTable, ifTable, family);
|
};
|
|
module.exports.v4 = () => promise("v4");
|
module.exports.v6 = () => promise("v6");
|
|
module.exports.v4.sync = () => sync("v4");
|
module.exports.v6.sync = () => sync("v6");
|
