}
module.exports = function(wss) {
- // Associative array sid --> tmpId --> {socket, page},
+ // Associative array page --> sid --> tmpId --> socket
// "page" is either "/" for hall or "/game/some_gid" for Game,
// tmpId is required if a same user (browser) has different tabs
let clients = {};
const query = getJsonFromUrl(req.url);
const sid = query["sid"];
const tmpId = query["tmpId"];
- const notifyRoom = (page,code,obj={},excluded=[]) => {
- Object.keys(clients).forEach(k => {
- if (k in excluded)
- return;
- if (k != sid && clients[k].page == page)
- {
- clients[k].sock.send(JSON.stringify(Object.assign(
- {code:code, from:[sid,tmpId]}, obj)));
- }
+ const page = query["page"];
+ const notifyRoom = (page,code,obj={}) => {
+ Object.keys(clients[page]).forEach(k => {
+ Object.keys(clients[page][k]).forEach(x => {
+ if (k == sid && x == tmpId)
+ return;
+ clients[page][k][x].send(JSON.stringify(Object.assign(
+ {code:code, from:sid}, obj)));
+ });
});
};
+ const deleteConnexion = () => {
+ if (!clients[page] || !clients[page][sid] || !clients[page][sid][tmpId])
+ return; //job already done
+ delete clients[page][sid][tmpId];
+ if (Object.keys(clients[page][sid]).length == 0)
+ {
+ delete clients[page][sid];
+ if (Object.keys(clients[page]) == 0)
+ delete clients[page];
+ }
+ };
const messageListener = (objtxt) => {
let obj = JSON.parse(objtxt);
- if (!!obj.target && !clients[obj.target])
- return; //receiver not connected, nothing we can do
+ if (!!obj.target)
+ {
+ // Check if receiver is connected, because there may be some lag
+ // between a client disconnects and another notice.
+ if (Array.isArray(obj.target))
+ {
+ if (!clients[page][obj.target[0]] ||
+ !clients[page][obj.target[0]][obj.target[1]])
+ {
+ return;
+ }
+ }
+ else if (!clients[page][obj.target])
+ return;
+ }
switch (obj.code)
{
// Wait for "connect" message to notify connection to the room,
// not be ready too early.
case "connect":
{
- const curPage = clients[sid][tmpId].page;
- notifyRoom(curPage, "connect"); //Hall or Game
- if (curPage.indexOf("/game/") >= 0)
- notifyRoom("/", "gconnect"); //notify main hall
+ notifyRoom(page, "connect");
+ if (page.indexOf("/game/") >= 0)
+ notifyRoom("/", "gconnect", {page:page});
break;
}
case "disconnect":
- {
- const oldPage = obj.page;
- notifyRoom(oldPage, "disconnect"); //Hall or Game
- if (oldPage.indexOf("/game/") >= 0)
- notifyRoom("/", "gdisconnect"); //notify main hall
+ // When page changes:
+ deleteConnexion();
+ if (!clients[page][sid])
+ {
+ // I effectively disconnected from this page:
+ notifyRoom(page, "disconnect");
+ if (page.indexOf("/game/") >= 0)
+ notifyRoom("/", "gdisconnect", {page:page});
+ }
break;
- }
- case "pollclients":
+ case "pollclients": //from Hall or Game
{
- const curPage = clients[sid][tmpId].page;
- let sockIds = {}; //result, object sid ==> [tmpIds]
- Object.keys(clients).forEach(k => {
- Object.keys(clients[k]).forEach(x => {
- if ((k != sid || x != tmpId)
- && clients[k][x].page == curPage)
- {
- if (!sockIds[k])
- sockIds[k] = [x];
- else
- sockIds[k].push(x);
- }
- });
+ let sockIds = [];
+ Object.keys(clients[page]).forEach(k => {
+ // Poll myself if I'm on at least another tab (same page)
+ if (k != sid || Object.keys(clients["/"][k]).length >= 2)
+ sockIds.push(k);
});
socket.send(JSON.stringify({code:"pollclients", sockIds:sockIds}));
break;
}
- case "pollgamers":
+ case "pollclientsandgamers": //from Hall
{
- let sockIds = {};
- Object.keys(clients).forEach(k => {
- Object.keys(clients[k]).forEach(x => {
- if ((k != sid || x != tmpId)
- && clients[k][x].page.indexOf("/game/") >= 0)
- {
- if (!sockIds[k])
- sockIds[k] = [x];
- else
- sockIds[k].push(x);
- }
- });
+ let sockIds = [];
+ Object.keys(clients["/"]).forEach(k => {
+ // Poll myself if I'm on at least another tab (same page)
+ if (k != sid || Object.keys(clients["/"][k]).length >= 2)
+ sockIds.push({sid:k});
+ });
+ // NOTE: a "gamer" could also just be an observer
+ Object.keys(clients).forEach(p => {
+ if (p != "/")
+ {
+ Object.keys(clients[p]).forEach(k => {
+ if (k != sid)
+ sockIds.push({sid:k, page:p}); //page needed for gamers
+ });
+ }
});
- socket.send(JSON.stringify({code:"pollgamers", sockIds:sockIds}));
+ socket.send(JSON.stringify({code:"pollclientsandgamers", sockIds:sockIds}));
break;
}
+
+ // Asking something: from is fully identified,
+ // but the requested resource can be from any tmpId (except current!)
case "askidentity":
+ case "asklastate":
+ case "askchallenge":
+ case "askgame":
+ case "askfullgame":
{
- // Identity only depends on sid, so select a tmpId at random
- const tmpIds = Object.keys(clients[obj.target]);
+ const tmpIds = Object.keys(clients[page][obj.target]);
+ if (obj.target == sid) //targetting myself
+ {
+ const idx_myTmpid = tmpIds.findIndex(x => x == tmpId);
+ if (idx_myTmpid >= 0)
+ tmpIds.splice(idx_myTmpid, 1);
+ }
const tmpId_idx = Math.floor(Math.random() * tmpIds.length);
- clients[obj.target][tmpIds[tmpId_idx]].sock.send(JSON.stringify(
- {code:"askidentity",from:[sid,tmpId]}));
+ clients[page][obj.target][tmpIds[tmpId_idx]].send(
+ JSON.stringify({code:obj.code, from:[sid,tmpId]}));
break;
}
- case "asklastate":
- clients[obj.target[0]][obj.target[1]].sock.send(JSON.stringify(
- {code:"asklastate",from:[sid,tmpId]}));
- break;
- case "askchallenge":
- clients[obj.target[0]][obj.target[1]].sock.send(JSON.stringify(
- {code:"askchallenge",from:[sid,tmpId]}));
- break;
- case "askgames":
- {
- // Check all clients playing, and send them a "askgame" message
- // game ID --> [ sid1 --> array of tmpIds, sid2 --> array of tmpIds]
- let gameSids = {};
- const regexpGid = /\/[a-zA-Z0-9]+$/;
- Object.keys(clients).forEach(k => {
- Object.keys(clients[k]).forEach(x => {
- if ((k != sid || x != tmpId)
- && clients[k][x].page.indexOf("/game/") >= 0)
+
+ // Some Hall events: target all tmpId's (except mine),
+ case "refusechallenge":
+ case "startgame":
+ Object.keys(clients[page][obj.target]).forEach(x => {
+ if (obj.target != sid || x != tmpId)
{
- const gid = clients[k][x].page.match(regexpGid)[0];
- if (!gameSids[gid])
- gameSids[gid] = [{k: [x]}];
- else if (k == Object.keys(gameSids[gid][0])[0])
- gameSids[gid][0][k].push(x);
- else if (gameSids[gid].length == 1)
- gameSids[gid].push({k: [x]});
- else
- Object.values(gameSids[gid][1]).push(x);
+ clients[page][obj.target][x].send(JSON.stringify(
+ {code:obj.code, data:obj.data}));
}
});
- // Request only one client out of 2 (TODO: this is a bit heavy)
- // Alt: ask game to all, and filter later?
- Object.keys(gameSids).forEach(gid => {
- const L = gameSids[gid].length;
- const sidIdx = L > 1
- ? Math.floor(Math.random() * Math.floor(L))
- : 0;
- const tmpIdx = Object.values(gameSids[gid][sidIdx]
- const rid = gameSids[gid][sidIdx][tmpIdx];
- clients[sidIdx][tmpIdx].sock.send(JSON.stringify(
- {code:"askgame", from: [sid,tmpId]}));
- });
- break;
- }
- case "askgame":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"askgame", from:sid}));
- break;
- case "askfullgame":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"askfullgame", from:sid}));
- break;
- case "fullgame":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"fullgame", game:obj.game}));
- break;
- case "identity":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"identity",user:obj.user}));
- break;
- case "refusechallenge":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"refusechallenge", cid:obj.cid, from:sid}));
- break;
- case "deletechallenge":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"deletechallenge", cid:obj.cid, from:sid}));
- break;
- case "newgame":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"newgame", gameInfo:obj.gameInfo, cid:obj.cid}));
- break;
- case "challenge":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"challenge", chall:obj.chall, from:sid}));
- break;
- case "game":
- if (!!obj.target)
- {
- clients[obj.target].sock.send(JSON.stringify(
- {code:"game", game:obj.game, from:sid}));
- }
- else
- {
- // Notify all room except opponent and me:
- notifyRoom("/", "game", {game:obj.game}, [obj.oppsid]);
- }
break;
+
+ // Notify all room: mostly game events
case "newchat":
- notifyRoom(clients[sid].page, "newchat", {chat:obj.chat});
- break;
- // TODO: WebRTC instead in this case (most demanding?)
- // --> Or else: at least do a "notifyRoom" (also for draw, resign...)
+ case "newchallenge":
+ case "newgame":
+ case "deletechallenge":
case "newmove":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"newmove", move:obj.move}));
- break;
- case "lastate":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"lastate", state:obj.state}));
- break;
case "resign":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"resign", side:obj.side}));
- break;
case "abort":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"abort"}));
- break;
case "drawoffer":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"drawoffer"}));
- break;
case "draw":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"draw", message:obj.message}));
+ notifyRoom(page, obj.code, {data:obj.data});
+ break;
+
+ // Passing, relaying something: from isn't needed,
+ // but target is fully identified (sid + tmpId)
+ case "challenge":
+ case "fullgame":
+ case "game":
+ case "identity":
+ case "lastate":
+ clients[page][obj.target[0]][obj.target[1]].send(JSON.stringify(
+ {code:obj.code, data:obj.data}));
break;
}
};
const closeListener = () => {
- delete clients[sid];
+ // For tab or browser closing:
+ deleteConnexion();
};
- 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"]};
+ // Update clients object: add new connexion
+ if (!clients[page])
+ clients[page] = {[sid]: {[tmpId]: socket}};
+ else if (!clients[page][sid])
+ clients[page][sid] = {[tmpId]: socket};
+ else
+ clients[page][sid][tmpId] = socket;
socket.on("message", messageListener);
socket.on("close", closeListener);
});
projects / vchess.git / blobdiff