Some fixes. TODO: game.mode must be analyze when score is not '*' ==> simplify Board...
[vchess.git] / server / sockets.js
... / ...
CommitLineData
1const url = require('url');
2
3// Node version in Ubuntu 16.04 does not know about URL class
4function getJsonFromUrl(url)
5{
6 const query = url.substr(2); //starts with "/?"
7 let result = {};
8 query.split("&").forEach((part) => {
9 const item = part.split("=");
10 result[item[0]] = decodeURIComponent(item[1]);
11 });
12 return result;
13}
14
15// Removal in array of strings (socket IDs)
16function remInArray(arr, item)
17{
18 const idx = arr.indexOf(item);
19 if (idx >= 0)
20 arr.splice(idx, 1);
21}
22
23// TODO: empêcher multi-log du même user (envoyer le user ID + secret en même temps que name et...)
24// --> si secret ne matche pas celui trouvé en DB, stop
25// TODO: lorsque challenge accepté, seul le dernier joueur à accepter envoi message "please start game"
26// avec les coordonnées des participants. Le serveur renvoit alors les détails de la partie (couleurs, position)
27//TODO: programmatic re-navigation on current game if we receive a move and are not there
28
29module.exports = function(wss) {
30 let clients = {}; //associative array sid --> socket
31 wss.on("connection", (socket, req) => {
32 const query = getJsonFromUrl(req.url);
33 const sid = query["sid"];
34 // TODO: later, allow duplicate connections (shouldn't be much more complicated)
35 // Ignore duplicate connections (on the same live game that we play):
36 if (!!clients[sid])
37 return socket.send(JSON.stringify({code:"duplicate"}));
38 clients[sid] = socket;
39 // Notify room:
40 Object.keys(clients).forEach(k => {
41 if (k != sid)
42 clients[k].send(JSON.stringify({code:"connect",sid:sid}));
43 });
44 socket.on("message", objtxt => {
45 let obj = JSON.parse(objtxt);
46 if (!!obj.target && !clients[obj.target])
47 return; //receiver not connected, nothing we can do
48 //console.log(obj.code);
49 switch (obj.code)
50 {
51 case "pollclients":
52 socket.send(JSON.stringify({code:"pollclients",
53 sockIds:Object.keys(clients).filter(k => k != sid)}));
54 break;
55 case "askidentity":
56 clients[obj.target].send(
57 JSON.stringify({code:"askidentity",from:sid}));
58 break;
59 case "askchallenge":
60 clients[obj.target].send(
61 JSON.stringify({code:"askchallenge",from:sid}));
62 break;
63 case "askgame":
64 clients[obj.target].send(
65 JSON.stringify({code:"askgame",from:sid}));
66 break;
67 case "identity":
68 clients[obj.target].send(
69 JSON.stringify({code:"identity",user:obj.user}));
70 break;
71 case "challenge":
72 clients[obj.target].send(
73 JSON.stringify({code:"challenge", chall:obj.chall, from:sid}));
74 break;
75 case "acceptchallenge":
76 clients[obj.target].send(
77 JSON.stringify({code:"acceptchallenge", cid:obj.cid, from:sid}));
78 break;
79 case "withdrawchallenge":
80 clients[obj.target].send(
81 JSON.stringify({code:"withdrawchallenge", cid:obj.cid, from:sid}));
82 break;
83 case "refusechallenge":
84 clients[obj.target].send(
85 JSON.stringify({code:"refusechallenge", cid:obj.cid, from:sid}));
86 break;
87 case "deletechallenge":
88 clients[obj.target].send(
89 JSON.stringify({code:"deletechallenge", cid:obj.cid, from:sid}));
90 break;
91 case "newgame":
92 clients[obj.target].send(JSON.stringify(
93 {code:"newgame", gameInfo:obj.gameInfo, cid:obj.cid}));
94 break;
95 case "game":
96 // TODO: relay (live) game to other player
97 break;
98 case "newchat":
99 clients[obj.target].send(JSON.stringify({code:"newchat",msg:obj.msg}));
100 break;
101 // Transmit chats and moves to current room
102 // TODO: WebRTC instead in this case (most demanding?)
103 case "newmove":
104 clients[obj.target].send(JSON.stringify({code:"newmove",move:obj.move}));
105 break;
106 // TODO: generalize that for several opponents
107 case "ping":
108 socket.send(JSON.stringify({code:"pong",gameId:obj.gameId}));
109 break;
110 case "lastate":
111 const oppId = obj.target;
112 obj.oppid = sid; //I'm the opponent of my opponent(s)
113 clients[oppId].send(JSON.stringify(obj));
114 break;
115 case "resign":
116 clients[obj.target].send(JSON.stringify({code:"resign"}));
117 break;
118 case "abort":
119 clients[obj.target].send(JSON.stringify({code:"abort",msg:obj.msg}));
120 break;
121 }
122 });
123 socket.on("close", () => {
124 delete clients[sid];
125 // Notify every other connected client
126 Object.keys(clients).forEach( k => {
127 clients[k].send(JSON.stringify({code:"disconnect",sid:sid}));
128 });
129 });
130 });
131}