tenebrous-dicebot/api/node_modules/default-gateway/win32.js

68 lines
1.7 KiB
JavaScript

"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");