wss.on("connection", (socket, req) => {
const query = getJsonFromUrl(req.url);
const sid = query["sid"];
- if (!!clients[sid])
- {
- // Dummy messages listener: just send "duplicate" event on anything
- // ('connect' events for Hall and Game, 'askfullgame' for observers)
- return socket.on("message", objtxt => {
- if (["connect","askfullgame"].includes(JSON.parse(objtxt).code))
- socket.send(JSON.stringify({code:"duplicate"}));
- });
- }
- clients[sid] = {sock: socket, page: query["page"]};
const notifyRoom = (page,code,obj={},excluded=[]) => {
Object.keys(clients).forEach(k => {
if (k in excluded)
}
});
};
- // Wait for "connect" message to notify connection to the room,
- // because if game loading is slow the message listener might
- // not be ready too early.
- socket.on("message", objtxt => {
+ const messageListener = (objtxt) => {
let obj = JSON.parse(objtxt);
if (!!obj.target && !clients[obj.target])
return; //receiver not connected, nothing we can do
switch (obj.code)
{
+ case "duplicate":
+ // Turn off message listening, and send disconnect if needed:
+ socket.removeListener("message", messageListener);
+ socket.removeListener("close", closeListener);
+ // From obj.page to clients[sid].page (TODO: unclear)
+ if (clients[sid].page != obj.page)
+ {
+ notifyRoom(obj.page, "disconnect");
+ if (obj.page.indexOf("/game/") >= 0)
+ notifyRoom("/", "gdisconnect");
+ }
+ break;
+ // Wait for "connect" message to notify connection to the room,
+ // because if game loading is slow the message listener might
+ // not be ready too early.
case "connect":
{
const curPage = clients[sid].page;
{code:"draw", message:obj.message}));
break;
}
- });
- socket.on("close", () => {
+ };
+ const closeListener = () => {
const page = clients[sid].page;
delete clients[sid];
notifyRoom(page, "disconnect");
if (page.indexOf("/game/") >= 0)
notifyRoom("/", "gdisconnect"); //notify main hall
- });
+ };
+ if (!!clients[sid])
+ {
+ // Turn off old sock through current client:
+ clients[sid].sock.send(JSON.stringify({code:"duplicate"}));
+ }
+ // Potentially replace current connection:
+ clients[sid] = {sock: socket, page: query["page"]};
+ socket.on("message", messageListener);
+ socket.on("close", closeListener);
});
}