merge: fix-ack-dead-socket into master

src/appv2.js

@@ -41,6 +41,10 @@ class Appv2 {
 		return 10;
 	}
 
+	get ackTimeoutMs() {
+		return Number(process.env.ACK_TIMEOUT_MS || 1500);
+	}
+
 	_takeIO() {
 		this.app = express();
 		this.server = http.createServer(this.app);
@@ -64,13 +68,17 @@ class Appv2 {
 		console.log('publish to ' + room + ' data:');
 		console.log(req.body);
 		const userId = room.split("_")[0];
+		const connection = this.connections[userId];
 
-		if (typeof this.connections[userId] === 'undefined') {
+		if (typeof connection === 'undefined' || !connection.connected) {
+			if (typeof connection !== 'undefined' && !connection.connected) {
+				delete this.connections[userId];
+			}
 			th.addToQueue(userId, req.body);
 			this.postResponse(res, 404);
 			return;
 		}
-		this.connections[userId].timeout(100).emit('data', req.body, (err, response)=> {
+		connection.timeout(this.ackTimeoutMs).emit('data', req.body, (err, response)=> {
 			let success = true;
 			console.log(response);
 			if(typeof response !== 'undefined') {
@@ -99,9 +107,15 @@ class Appv2 {
 			this.connections[userId] = socket;
 			this.tryResolveQueueStorage(userId, room).then(r => console.log(r));
 			console.log('user ' + socket.id + ' joined to room ' + room);
+			socket.on('disconnect', () => {
+				if (this.connections[userId] === socket) {
+					delete this.connections[userId];
+				}
+				console.log('user ' + socket.id + ' disconnected');
+			});
+			return;
 		}
 		socket.on('disconnect', () => {
-			const room = socket.handshake.query.id;
 			console.log('user ' + socket.id + ' disconnected');
 		});
 	}