WUI: fix private ipv4 address detection for open server

.gitignore

@@ -1,21 +1,20 @@
-/config.json
-/rules.json
-/etc
-/etc/*
-/recorded
-/recorded/*
-/data
-/data/*
-/log
-/log/*
-/.nave
-/.nave/*
-/.epgdump
-/.epgdump/*
-/tmp
-/tmp/*
-/usr
-/usr/*
-/node
-/node_modules/*
-!/node_modules/chinachu-common
+/config.json
+/rules.json
+/etc
+/etc/*
+/recorded
+/recorded/*
+/data
+/data/*
+/log
+/log/*
+/.nave
+/.nave/*
+/.epgdump
+/.epgdump/*
+/tmp
+/tmp/*
+/usr
+/usr/*
+/node
+/node_modules/*

.npmrc

@@ -0,0 +1 @@
+package-lock = false

app-wui.js

@@ -37,13 +37,13 @@ const vm = require('vm');
 const os = require('os');
 const zlib = require('zlib');
 const events = require('events');
-const dns = require('dns');
 const http = require('http');
 const https = require('https');
 const auth = require('http-auth');
 const socketio = require('socket.io');
 const chinachu = require('chinachu-common');
 const S = require('string');
+const ip = require("ip");
 const geoip = require('geoip-lite');
 const UPnPServer = require('chinachu-upnp-server');
 const mdns = require('mdns-js');
@@ -231,24 +231,49 @@ if (config.wuiPort) {
 if (openServerEnabled) {
 	openServer = http.createServer(httpServer);
 	openServer.timeout = 0;
-	dns.lookup(os.hostname(), function (err, hostIp) {
-		openServer.listen(config.wuiOpenPort || 20772, config.wuiOpenHost || hostIp, function () {
-			util.log('HTTP Open Server Listening on ' + util.inspect(openServer.address()));
-			if (config.wuiMdnsAdvertisement === true) {
-				// Start mDNS advertisement
-				openServerMdns = mdns.createAdvertisement(mdns.tcp('_http'), config.wuiOpenPort || 20772, {
-					name: 'Chinachu Open Server on ' + os.hostname(),
-					host: os.hostname(),
-					txt: {
-						txtvers: '1',
-						'Version': 'gamma',
-						'Password': false
-					}
-				});
-				openServerMdns.start();
-				util.log('HTTP Open Server mDNS advertising started.');
-			}
+
+	let hostIp = config.wuiOpenHost;
+	if (!hostIp) {
+		const addresses = [];
+
+		const interfaces = os.networkInterfaces();
+		Object.keys(interfaces).forEach(k => {
+			interfaces[k]
+				.filter(a => {
+					return (
+						a.family === "IPv4" &&
+						a.internal === false &&
+						ip.isPrivate(a.address) === true
+					);
+				})
+				.forEach(a => addresses.push(a.address));
 		});
+
+		hostIp = addresses[0];
+
+		console.log("============================================================");
+		console.log("Detected Private IPv4:", addresses);
+		console.log("Selected Private IPv4 for Open Server:", addresses[0]);
+		console.log("NOTE: set `wuiOpenHost` to fix address for listen.");
+		console.log("============================================================");
+	}
+
+	openServer.listen(config.wuiOpenPort || 20772, hostIp, () => {
+		util.log('HTTP Open Server Listening on ' + util.inspect(openServer.address()));
+		if (config.wuiMdnsAdvertisement === true) {
+			// Start mDNS advertisement
+			openServerMdns = mdns.createAdvertisement(mdns.tcp('_http'), config.wuiOpenPort || 20772, {
+				name: 'Chinachu Open Server on ' + os.hostname(),
+				host: os.hostname(),
+				txt: {
+					txtvers: '1',
+					'Version': 'gamma',
+					'Password': false
+				}
+			});
+			openServerMdns.start();
+			util.log('HTTP Open Server mDNS advertising started.');
+		}
 	});
 }
 

package.json

@@ -23,13 +23,15 @@
     "url": "https://github.com/kanreisa/Chinachu/issues"
   },
   "dependencies": {
+    "chinachu-common": "file:common",
     "chinachu-upnp-server": "^0.0.2",
     "dateformat": "~1.0.6-1.2.3",
     "diskusage": "^0.1.5",
     "easy-table": "~0.2.0",
     "geoip-lite": "^1.1.6",
     "hoard": "~0.1.5",
     "http-auth": "^2.2.8",
+    "ip": "^1.1.5",
     "mdns-js": "^0.5.0",
     "mirakurun": "^2.3.0",
     "mkdirp": "~0.3.5",