+ var query = getJsonFromUrl(req.url);
+ const sid = query["sid"];
+ const page = query["page"];
+ // Ignore duplicate connections:
+ if (!!clients[page][sid])
+ {
+ socket.send(JSON.stringify({code:"duplicate"}));
+ return;
+ }
+ clients[page][sid] = socket;
+ if (page == "index")
+ {
+ // Send counting info
+ const countings = {};
+ for (const v of variants)
+ countings[v.id] = Object.keys(clients[v.id]).length;
+ socket.send(JSON.stringify({code:"counts",counts:countings}));
+ }
+ else
+ {
+ // Send to every client connected on index an update message for counts
+ Object.keys(clients["index"]).forEach( k => {
+ clients["index"][k].send(
+ JSON.stringify({code:"increase",vid:page}), noop);
+ });
+ // Also notify potential opponents:
+ // hit all clients which check if sid corresponds
+ Object.keys(clients[page]).forEach( k => {
+ clients[page][k].send(JSON.stringify({code:"connect",id:sid}), noop);
+ });
+ socket.on("message", objtxt => {
+ let obj = JSON.parse(objtxt);
+ switch (obj.code)
+ {
+ case "newchat":
+ if (!!clients[page][obj.oppid])
+ {
+ clients[page][obj.oppid].send(
+ JSON.stringify({code:"newchat",msg:obj.msg}), noop);
+ }
+ break;
+ case "newmove":
+ if (!!clients[page][obj.oppid])
+ {
+ clients[page][obj.oppid].send(
+ JSON.stringify({code:"newmove",move:obj.move}), noop);
+ }
+ break;
+ case "ping":
+ if (!!clients[page][obj.oppid])
+ socket.send(JSON.stringify({code:"pong",gameId:obj.gameId}));
+ break;
+ case "myname":
+ // Reveal my username to opponent
+ if (!!clients[page][obj.oppid])
+ {
+ clients[page][obj.oppid].send(JSON.stringify({
+ code:"oppname", name:obj.name}));
+ }
+ break;
+ case "lastate":
+ if (!!clients[page][obj.oppid])
+ {
+ const oppId = obj.oppid;
+ obj.oppid = sid; //I'm oppid for my opponent
+ clients[page][oppId].send(JSON.stringify(obj), noop);
+ }
+ break;
+ case "newgame":
+ if (!!games[page])
+ {
+ // Start a new game
+ const oppId = games[page]["id"];
+ const fen = games[page]["fen"];
+ const gameId = games[page]["gameid"];
+ delete games[page];
+ const mycolor = (Math.random() < 0.5 ? 'w' : 'b');
+ socket.send(JSON.stringify(
+ {code:"newgame",fen:fen,oppid:oppId,color:mycolor,gameid:gameId}));
+ if (!!clients[page][oppId])
+ {
+ clients[page][oppId].send(
+ JSON.stringify(
+ {code:"newgame",fen:fen,oppid:sid,color:mycolor=="w"?"b":"w",gameid:gameId}),
+ noop);
+ }
+ }
+ else
+ games[page] = {id:sid, fen:obj.fen, gameid:obj.gameid}; //wait for opponent
+ break;
+ case "cancelnewgame": //if a user cancel his seek
+ delete games[page];
+ break;
+ case "resign":
+ if (!!clients[page][obj.oppid])
+ clients[page][obj.oppid].send(JSON.stringify({code:"resign"}), noop);
+ break;
+ // TODO: case "challenge" (get ID) --> send to all, "acceptchallenge" (with ID) --> send to all, "cancelchallenge" --> send to all
+ // also, "sendgame" (give current game info, if any) --> to new connections, "sendchallenges" (same for challenges) --> to new connections
+ }
+ });
+ }
+ socket.on("close", () => {
+ delete clients[page][sid];
+ // Remove potential pending game
+ if (!!games[page] && games[page]["id"] == sid)
+ delete games[page];
+ if (page != "index")