-
Notifications
You must be signed in to change notification settings - Fork 0
/
server.js
72 lines (60 loc) · 1.29 KB
/
server.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
import { createServer } from 'http'
import ws, { WebSocketServer } from 'ws'
const server = createServer((req, res) => {
fs.readFile(__dirname + '/index.html', (err, data) => {
if (err) {
res.writeHead(404)
res.end(JSON.stringify(err))
return
}
res.writeHead(200)
res.end(data)
})
})
const wss = new WebSocketServer({ server })
const clients = new Set()
wss.getUniqueID = uuidv4
wss.on('connection', (ws) => {
ws.id = wss.getUniqueID()
clients.add(ws.id)
ws.on('message', (msg) => {
const message = {
type: 'message',
text: msg,
id: ws.id,
date: Date.now(),
clients: [...clients],
}
broadcast(JSON.stringify(message))
})
ws.on('error', console.error)
ws.on('close', () => {
clients.delete(ws.id)
})
broadcast(
JSON.stringify({
type: 'open',
text: '',
id: ws.id,
date: Date.now(),
clients: [...clients],
})
)
})
server.listen('4200', () => {
console.log(`server listening on port 4200`)
})
function broadcast(data) {
for (const client of wss.clients) {
if (client.readyState === ws.OPEN) {
client.send(data)
}
}
}
function uuidv4() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
var uuid = (Math.random() * 16) | 0,
v = c == 'x' ? uuid : (uuid & 0x3) | 0x8
return uuid.toString(16)
})
}