-//const url = require('url');
+const url = require('url');
const Variants = require("./variants");
-function getJsonFromUrl(url) {
- var query = url.substr(2); //starts with "/?"
- var result = {};
- query.split("&").forEach(function(part) {
- var item = part.split("=");
- result[item[0]] = decodeURIComponent(item[1]);
- });
- return result;
-}
-
module.exports = function(wss) {
let clients = { "index": {} };
for (const v of Variants)
clients[v.name] = {};
- // (resign, newgame, newmove). See https://github.com/websockets/ws/blob/master/lib/websocket.js around line 313
- // TODO: awaiting newmove, resign, (+newgame?) :: in memory structure (use Redis ?)
- let newmoves = {};
- let newresign = {};
- for (const v of Variants)
- {
- newmoves[v.name] = {};
- newresign[v.name] = {};
- }
+// // Safety counter (TODO: is it necessary ?)
+// setInterval(() => {
+// Object.keys(clients).forEach(k => {
+// Object.keys(clients[k]).forEach(ck => {
+// if (!clients[k][ck] || clients[k][ck].readyState != 1)
+// delete clients[k][ck];
+// });
+// });
+// }, 60000); //every minute (will be lowered if a lot of users...)
+
+ // No-op function as a callback when sending messages
+ const noop = () => { };
wss.on("connection", (socket, req) => {
- //const params = new URL("http://localhost" + req.url).searchParams;
- var query = getJsonFromUrl(req.url);
- const sid = query["sid"]; //params.get("sid");
- const page = query["page"]; //params.get("page");
+ const params = new URL("http://localhost" + req.url).searchParams;
+ const sid = params.get("sid");
+ const page = params.get("page");
clients[page][sid] = socket;
if (page == "index")
{
{
// 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",vname:page}));
+ clients["index"][k].send(JSON.stringify({code:"increase",vname: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}));
+ clients[page][k].send(JSON.stringify({code:"connect",id:sid}), noop);
});
- if (!!newmoves[page][sid])
- {
- socket.send(JSON.stringify({code:"newmove",move:newmoves[page][sid]}));
- delete newmoves[page][sid];
- }
- if (!!newresign[page][sid])
- {
- socket.send(JSON.stringify({code:"resign"}));
- delete newresign[page][sid];
- }
socket.on("message", objtxt => {
let obj = JSON.parse(objtxt);
switch (obj.code)
{
case "newmove":
- if (!!clients[page][obj.oppid] && clients[page][obj.oppid].readyState == WebSocket.OPEN)
- clients[page][obj.oppid].send(JSON.stringify({code:"newmove",move:obj.move}));
- else
- newmoves[page][obj.oppid] = obj.move;
+ 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] && clients[page][obj.oppid].readyState == WebSocket.OPEN)
+ if (!!clients[page][obj.oppid])
socket.send(JSON.stringify({code:"pong"}));
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])
{
const fen = games[page]["fen"];
delete games[page];
const mycolor = Math.random() < 0.5 ? 'w' : 'b';
- socket.send(JSON.stringify({code:"newgame",fen:fen,oppid:oppId,color:mycolor}));
- clients[page][oppId].send(JSON.stringify({code:"newgame",fen:fen,oppid:sid,color:mycolor=="w"?"b":"w"}));
+ socket.send(
+ JSON.stringify({code:"newgame",fen:fen,oppid:oppId,color:mycolor}));
+ if (!!clients[page][oppId])
+ {
+ clients[page][oppId].send(
+ JSON.stringify(
+ {code:"newgame",fen:fen,oppid:sid,color:mycolor=="w"?"b":"w"}),
+ noop);
+ }
}
else
games[page] = {id:sid, fen:obj.fen}; //wait for opponent
break;
case "resign":
- if (!!clients[page][obj.oppid] && clients[page][obj.oppid].readyState == WebSocket.OPEN)
- clients[page][obj.oppid].send(JSON.stringify({code:"resign"}));
- else
- newresign[page][obj.oppid] = true;
+ if (!!clients[page][obj.oppid])
+ clients[page][obj.oppid].send(JSON.stringify({code:"resign"}), noop);
break;
}
});
{
// 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:"decrease",vname:page}));
+ clients["index"][k].send(JSON.stringify({code:"decrease",vname: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:"disconnect",id:sid}));
+ clients[page][k].send(JSON.stringify({code:"disconnect",id:sid}), noop);
});
});
});
projects / vchess.git / blobdiff