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
|
'use strict';
var url = require('url');
var log = require('./log');
var maxRetries = 10;
var retry = maxRetries;
module.exports = function connect(options, handler) {
var socketUrl = url.format({
protocol: options.https ? 'wss' : 'ws',
hostname: options.webSocket.host,
port: options.webSocket.port,
slashes: true
});
var open = false;
var socket = new WebSocket(socketUrl);
socket.addEventListener('open', function () {
open = true;
retry = maxRetries;
log.info('WebSocket connected');
});
socket.addEventListener('close', function () {
log.warn('WebSocket closed');
open = false;
socket = null; // exponentation operator ** isn't supported by IE at all
// eslint-disable-next-line no-restricted-properties
var timeout = 1000 * Math.pow(maxRetries - retry, 2) + Math.random() * 100;
if (open || retry <= 0) {
log.warn("WebSocket: ending reconnect after ".concat(maxRetries, " attempts"));
return;
}
log.info("WebSocket: attempting reconnect in ".concat(parseInt(timeout / 1000, 10), "s"));
setTimeout(function () {
retry -= 1;
connect(options, handler);
}, timeout);
});
socket.addEventListener('message', function (event) {
log.debug('WebSocket: message:', event.data);
var message = JSON.parse(event.data);
if (handler[message.type]) {
handler[message.type](message.data);
}
});
};
|
