WIP - add extractor, generate snippet_data

node_modules/internal-ip/index.js

@@ -0,0 +1,51 @@
+'use strict';
+const os = require('os');
+const defaultGateway = require('default-gateway');
+const ipaddr = require('ipaddr.js');
+
+function findIp(gateway) {
+	const interfaces = os.networkInterfaces();
+	const gatewayIp = ipaddr.parse(gateway);
+	let ip;
+
+	// Look for the matching interface in all local interfaces
+	Object.keys(interfaces).some(name => {
+		return interfaces[name].some(addr => {
+			const prefix = ipaddr.parse(addr.netmask).prefixLengthFromSubnetMask();
+			const net = ipaddr.parseCIDR(`${addr.address}/${prefix}`);
+
+			if (net[0] && net[0].kind() === gatewayIp.kind() && gatewayIp.match(net)) {
+				ip = net[0].toString();
+			}
+
+			return Boolean(ip);
+		});
+	});
+
+	return ip;
+}
+
+function promise(family) {
+	return defaultGateway[family]().then(result => {
+		return findIp(result.gateway) || null;
+	}).catch(() => null);
+}
+
+function sync(family) {
+	try {
+		const result = defaultGateway[family].sync();
+		return findIp(result.gateway) || null;
+	} catch (error) {
+		return null;
+	}
+}
+
+const internalIp = {};
+internalIp.v6 = () => promise('v6');
+internalIp.v4 = () => promise('v4');
+internalIp.v6.sync = () => sync('v6');
+internalIp.v4.sync = () => sync('v4');
+
+module.exports = internalIp;
+// TODO: Remove this for the next major release
+module.exports.default = internalIp;