forked from AplaProject/go-apla
/
type3.go
95 lines (80 loc) · 2.59 KB
/
type3.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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
package tcpserver
import (
"errors"
"net"
"time"
"github.com/GenesisCommunity/go-genesis/packages/conf"
"github.com/GenesisCommunity/go-genesis/packages/conf/syspar"
"github.com/GenesisCommunity/go-genesis/packages/consts"
"github.com/GenesisCommunity/go-genesis/packages/converter"
"github.com/GenesisCommunity/go-genesis/packages/crypto"
"github.com/GenesisCommunity/go-genesis/packages/model"
"github.com/GenesisCommunity/go-genesis/packages/utils"
log "github.com/sirupsen/logrus"
)
var errStopCertAlreadyUsed = errors.New("Stop certificate is already used")
// Type3
func Type3(req *StopNetworkRequest, w net.Conn) error {
hash, err := processStopNetwork(req.Data)
if err != nil {
return err
}
res := &StopNetworkResponse{hash}
if err = SendRequest(res, w); err != nil {
log.WithFields(log.Fields{"error": err, "type": consts.NetworkError}).Error("sending response")
return err
}
return nil
}
func processStopNetwork(b []byte) ([]byte, error) {
cert, err := utils.ParseCert(b)
if err != nil {
log.WithFields(log.Fields{"error": err, "type": consts.ParseError}).Error("parsing cert")
return nil, err
}
if cert.EqualBytes(consts.UsedStopNetworkCerts...) {
log.WithFields(log.Fields{"error": errStopCertAlreadyUsed, "type": consts.InvalidObject}).Error("checking cert")
return nil, errStopCertAlreadyUsed
}
fbdata, err := syspar.GetFirstBlockData()
if err != nil {
log.WithFields(log.Fields{"error": err, "type": consts.ConfigError}).Error("getting data of first block")
return nil, err
}
if err = cert.Validate(fbdata.StopNetworkCertBundle); err != nil {
log.WithFields(log.Fields{"error": err, "type": consts.InvalidObject}).Error("validating cert")
return nil, err
}
var data []byte
_, err = converter.BinMarshal(&data,
&consts.StopNetwork{
TxHeader: consts.TxHeader{
Type: consts.TxTypeStopNetwork,
Time: uint32(time.Now().Unix()),
KeyID: conf.Config.KeyID,
},
StopNetworkCert: b,
},
)
if err != nil {
log.WithFields(log.Fields{"error": err, "type": consts.MarshallingError}).Error("binary marshaling")
return nil, err
}
hash, err := crypto.Hash(data)
if err != nil {
log.WithFields(log.Fields{"error": err, "type": consts.CryptoError}).Error("hashing data")
return nil, err
}
tx := &model.Transaction{
Hash: hash,
Data: data,
Type: consts.TxTypeStopNetwork,
KeyID: conf.Config.KeyID,
HighRate: model.TransactionRateStopNetwork,
}
if err = tx.Create(); err != nil {
log.WithFields(log.Fields{"error": err, "type": consts.DBError}).Error("inserting tx to database")
return nil, err
}
return hash, nil
}