/
parcel.go
69 lines (60 loc) · 2.17 KB
/
parcel.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
/*
* Copyright 2019 Insolar Technologies
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package messagebus
import (
"context"
"crypto"
"github.com/insolar/insolar/core"
"github.com/insolar/insolar/core/message"
"github.com/insolar/insolar/instrumentation/inslogger"
"github.com/insolar/insolar/instrumentation/instracer"
"github.com/pkg/errors"
)
type parcelFactory struct {
DelegationTokenFactory core.DelegationTokenFactory `inject:""`
PlatformCryptographyScheme core.PlatformCryptographyScheme `inject:""`
Cryptography core.CryptographyService `inject:""`
}
// NewParcelFactory returns new instance of parcelFactory
func NewParcelFactory() message.ParcelFactory {
return &parcelFactory{}
}
func (pf *parcelFactory) Create(ctx context.Context, msg core.Message, sender core.RecordRef, token core.DelegationToken, currentPulse core.Pulse) (core.Parcel, error) {
if msg == nil {
return nil, errors.New("failed to signature a nil message")
}
serialized := message.ToBytes(msg)
signature, err := pf.Cryptography.Sign(serialized)
if err != nil {
return nil, err
}
return &message.Parcel{
Msg: msg,
Signature: signature.Bytes(),
LogTraceID: inslogger.TraceID(ctx),
TraceSpanData: instracer.MustSerialize(ctx),
Sender: sender,
Token: token,
PulseNumber: currentPulse.PulseNumber,
}, nil
}
func (pf *parcelFactory) Validate(publicKey crypto.PublicKey, parcel core.Parcel) error {
ok := pf.Cryptography.Verify(publicKey, core.SignatureFromBytes(parcel.GetSign()), message.ToBytes(parcel.Message()))
if !ok {
return errors.New("parcel isn't valid")
}
return nil
}