Update socket.io to version 1.4.0

src/config.js

@@ -50,7 +50,8 @@ var defaults = {
     io: {
         domain: "http://localhost",
         "default-port": 1337,
-        "ip-connection-limit": 10
+        "ip-connection-limit": 10,
+        "per-message-deflate": false
     },
     mail: {
         enabled: false,

src/counters.js

@@ -25,11 +25,20 @@ Socket.prototype.packet = function () {
     exports.add('socket.io:packet');
 };
 
+function getConnectedSockets() {
+    var sockets = io.instance.sockets.sockets;
+    if (typeof sockets.length === 'number') {
+        return sockets.length;
+    } else {
+        return Object.keys(sockets).length;
+    }
+}
+
 setInterval(function () {
     try {
         counters['memory:rss'] = process.memoryUsage().rss / 1048576;
         counters['load:1min'] = os.loadavg()[0];
-        counters['socket.io:count'] = io.instance.sockets.sockets.length;
+        counters['socket.io:count'] = getConnectedSockets();
         counterLog.log(JSON.stringify(counters));
     } catch (e) {
         Logger.errlog.log(e.stack);

src/database.js

@@ -583,7 +583,7 @@ module.exports.loadAnnouncement = function () {
         var sv = Server.getServer();
         sv.announcement = announcement;
         for (var id in sv.ioServers) {
-            sv.ioServers[id].sockets.emit("announcement", announcement);
+            sv.ioServers[id].emit("announcement", announcement);
         }
     });
 };

src/io/ioserver.js

@@ -242,6 +242,9 @@ function handleConnection(sock) {
 module.exports = {
     init: function (srv, webConfig) {
         var bound = {};
+        const ioOptions = {
+            perMessageDeflate: Config.get("io.per-message-deflate")
+        };
         var io = sio.instance = sio();
 
         io.use(handleAuth);
@@ -259,7 +262,7 @@ module.exports = {
             }
 
             if (id in srv.servers) {
-                io.attach(srv.servers[id]);
+                io.attach(srv.servers[id], ioOptions);
             } else {
                 var server = require("http").createServer().listen(bind.port, bind.ip);
                 server.on("clientError", function (err, socket) {
@@ -268,7 +271,7 @@ module.exports = {
                     } catch (e) {
                     }
                 });
-                io.attach(server);
+                io.attach(server, ioOptions);
             }
 
             bound[id] = null;