-
Notifications
You must be signed in to change notification settings - Fork 1
/
token.go
78 lines (66 loc) · 2.47 KB
/
token.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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
// Copyright (c) 2020 BitMaelum Authors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
package address
import (
"crypto/sha256"
"encoding/base64"
"strconv"
"strings"
"time"
"github.com/bitmaelum/bitmaelum-suite/pkg/bmcrypto"
"github.com/bitmaelum/bitmaelum-suite/pkg/hash"
)
var TimeNow = time.Now
func GenerateToken(addrHash hash.Hash, routingID string, validUntil time.Time, pk bmcrypto.PrivKey) string {
h := sha256.Sum256([]byte(addrHash.String() + routingID + strconv.FormatInt(validUntil.Unix(), 10)))
sig, _ := bmcrypto.Sign(pk, h[:])
s := addrHash.String() + ":" + routingID + ":" + strconv.FormatInt(validUntil.Unix(), 10) + ":" + string(sig)
return base64.StdEncoding.EncodeToString([]byte(s))
}
func VerifyInviteToken(token string, addrHash hash.Hash, routingID string, key bmcrypto.PubKey) bool {
tokenData, err := base64.StdEncoding.DecodeString(token)
if err != nil {
return false
}
parts := strings.SplitN(string(tokenData), ":", 4)
if len(parts) != 4 {
return false
}
// Check signature first
hash := sha256.Sum256([]byte(parts[0] + parts[1] + parts[2]))
ok, err := bmcrypto.Verify(key, hash[:], []byte(parts[3]))
if err != nil || !ok {
return false
}
// Check address
if addrHash.String() != parts[0] {
return false
}
// Check routing
if routingID != parts[1] {
return false
}
// Check expiry
ts, err := strconv.Atoi(parts[2])
if err != nil {
return false
}
expiry := time.Unix(int64(ts), 0)
return TimeNow().Before(expiry)
}