blob: ec05df1d9ef52f555b4048eec55d7c907f4bf4b4 (
plain) (
blame)
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
|
// Copyright (c) 2021 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package whatsmeow
import (
"context"
"math/rand"
"time"
waBinary "go.mau.fi/whatsmeow/binary"
"go.mau.fi/whatsmeow/types"
)
var (
// KeepAliveResponseDeadline specifies the duration to wait for a response to websocket keepalive pings.
KeepAliveResponseDeadline = 10 * time.Second
// KeepAliveIntervalMin specifies the minimum interval for websocket keepalive pings.
KeepAliveIntervalMin = 20 * time.Second
// KeepAliveIntervalMax specifies the maximum interval for websocket keepalive pings.
KeepAliveIntervalMax = 30 * time.Second
)
func (cli *Client) keepAliveLoop(ctx context.Context) {
for {
interval := rand.Int63n(KeepAliveIntervalMax.Milliseconds()-KeepAliveIntervalMin.Milliseconds()) + KeepAliveIntervalMin.Milliseconds()
select {
case <-time.After(time.Duration(interval) * time.Millisecond):
if !cli.sendKeepAlive(ctx) {
return
}
case <-ctx.Done():
return
}
}
}
func (cli *Client) sendKeepAlive(ctx context.Context) bool {
respCh, err := cli.sendIQAsync(infoQuery{
Namespace: "w:p",
Type: "get",
To: types.ServerJID,
Content: []waBinary.Node{{Tag: "ping"}},
})
if err != nil {
cli.Log.Warnf("Failed to send keepalive: %v", err)
return true
}
select {
case <-respCh:
// All good
case <-time.After(KeepAliveResponseDeadline):
// TODO disconnect websocket?
cli.Log.Warnf("Keepalive timed out")
case <-ctx.Done():
return false
}
return true
}
|
