const url = require('url');
// Node version in Ubuntu 16.04 does not know about URL class
+// NOTE: url is already transformed, without ?xxx=yyy... parts
function getJsonFromUrl(url)
{
const query = url.substr(2); //starts with "/?"
wss.on("connection", (socket, req) => {
const query = getJsonFromUrl(req.url);
const sid = query["sid"];
- // TODO: later, allow duplicate connections (shouldn't be much more complicated)
- if (!!clients[sid])
- return socket.send(JSON.stringify({code:"duplicate"}));
- clients[sid] = {sock: socket, page: query["page"]};
- const notifyRoom = (page,code) => {
+ 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({code:code,sid:sid}));
+ {
+ clients[k].sock.send(JSON.stringify(Object.assign(
+ {code:code, from:sid}, obj)));
+ }
});
};
- notifyRoom(query["page"],"connect");
- 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;
+ notifyRoom(curPage, "connect"); //Hall or Game
+ if (curPage.indexOf("/game/") >= 0)
+ notifyRoom("/", "gconnect"); //notify main hall
+ break;
+ }
case "pollclients":
+ {
const curPage = clients[sid].page;
socket.send(JSON.stringify({code:"pollclients",
sockIds: Object.keys(clients).filter(k =>
- k != sid && clients[k].page == curPage)}));
+ k != sid && clients[k].page == curPage
+ )}));
+ break;
+ }
+ case "pollgamers":
+ socket.send(JSON.stringify({code:"pollgamers",
+ sockIds: Object.keys(clients).filter(k =>
+ k != sid && clients[k].page.indexOf("/game/") >= 0
+ )}));
break;
case "pagechange":
+ // page change clients[sid].page --> obj.page
+ // TODO: some offline rooms don't need to receive disconnect event
notifyRoom(clients[sid].page, "disconnect");
+ if (clients[sid].page.indexOf("/game/") >= 0)
+ notifyRoom("/", "gdisconnect");
clients[sid].page = obj.page;
- notifyRoom(obj.page, "connect");
+ // No need to notify connection: it's self-sent in .vue file
+ //notifyRoom(obj.page, "connect");
+ if (obj.page.indexOf("/game/") >= 0)
+ notifyRoom("/", "gconnect");
break;
case "askidentity":
clients[obj.target].sock.send(JSON.stringify(
{code:"askidentity",from:sid}));
break;
+ case "asklastate":
+ clients[obj.target].sock.send(JSON.stringify(
+ {code:"asklastate",from:sid}));
+ break;
case "askchallenge":
clients[obj.target].sock.send(JSON.stringify(
{code:"askchallenge",from:sid}));
break;
+ case "askgames":
+ {
+ // Check all clients playing, and send them a "askgame" message
+ let gameSids = {}; //game ID --> [sid1, sid2]
+ const regexpGid = /\/[a-zA-Z0-9]+$/;
+ Object.keys(clients).forEach(k => {
+ if (k != sid && clients[k].page.indexOf("/game/") >= 0)
+ {
+ const gid = clients[k].page.match(regexpGid)[0];
+ if (!gameSids[gid])
+ gameSids[gid] = [k];
+ else
+ gameSids[gid].push(k);
+ }
+ });
+ // 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 idx = L > 1
+ ? Math.floor(Math.random() * Math.floor(L))
+ : 0;
+ const rid = gameSids[gid][idx];
+ clients[rid].sock.send(JSON.stringify(
+ {code:"askgame", from: sid}));
+ });
+ break;
+ }
case "askgame":
clients[obj.target].sock.send(JSON.stringify(
- {code:"askgame",from:sid}));
+ {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:"challenge", chall:obj.chall, from:sid}));
break;
case "game":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"game", game:obj.game, from:sid}));
+ 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;
case "newchat":
- clients[obj.target].sock.send(JSON.stringify(
- {code:"newchat",msg:obj.msg}));
+ 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 "newmove":
clients[obj.target].sock.send(JSON.stringify(
- {code:"newmove",move:obj.move}));
+ {code:"newmove", move:obj.move}));
break;
case "lastate":
clients[obj.target].sock.send(JSON.stringify(
break;
case "resign":
clients[obj.target].sock.send(JSON.stringify(
- {code:"resign"}));
+ {code:"resign", side:obj.side}));
break;
case "abort":
clients[obj.target].sock.send(JSON.stringify(
- {code:"abort",msg:obj.msg}));
+ {code:"abort"}));
break;
case "drawoffer":
clients[obj.target].sock.send(JSON.stringify(
break;
case "draw":
clients[obj.target].sock.send(JSON.stringify(
- {code:"draw"}));
+ {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);
});
}
projects / vchess.git / blobdiff