forked from mutecomm/mute
/
session.go
59 lines (53 loc) · 1.43 KB
/
session.go
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
// Copyright (c) 2015 Mute Communications Ltd.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package msg
import (
"io"
"github.com/mutecomm/mute/msg/session"
"github.com/mutecomm/mute/uid"
"github.com/mutecomm/mute/util/times"
)
func addSessionKey(ss session.Store, ke *uid.KeyEntry) error {
ct := uint64(times.Now()) + CleanupTime
return ss.AddSessionKey(ke.HASH, string(ke.JSON()), ke.PrivateKey(), ct)
}
func getSessionKey(ss session.Store, hash string) (*uid.KeyEntry, error) {
jsn, privKey, err := ss.GetSessionKey(hash)
if err != nil {
return nil, err
}
ke, err := uid.NewJSONKeyEntry([]byte(jsn))
if err != nil {
return nil, err
}
if privKey != "" {
if err := ke.SetPrivateKey(privKey); err != nil {
return nil, err
}
}
return ke, err
}
func setNextSenderSessionPub(
keyStore session.Store,
sessionState *session.State,
sessionStateKey string,
rand io.Reader,
) (*uid.KeyEntry, error) {
// create next session key
var nextSenderSession uid.KeyEntry
if err := nextSenderSession.InitDHKey(rand); err != nil {
return nil, err
}
// store next session key
if err := addSessionKey(keyStore, &nextSenderSession); err != nil {
return nil, err
}
// update session state
sessionState.NextSenderSessionPub = &nextSenderSession
err := keyStore.SetSessionState(sessionStateKey, sessionState)
if err != nil {
return nil, err
}
return &nextSenderSession, nil
}