-
Notifications
You must be signed in to change notification settings - Fork 4
/
record_builder.go
163 lines (139 loc) · 4.44 KB
/
record_builder.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
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
package lmntestapp
import (
"github.com/insolar/assured-ledger/ledger-core/crypto"
"github.com/insolar/assured-ledger/ledger-core/instrumentation/insapp"
"github.com/insolar/assured-ledger/ledger-core/ledger/server/catalog"
"github.com/insolar/assured-ledger/ledger-core/ledger/server/inspectsvc"
"github.com/insolar/assured-ledger/ledger-core/reference"
"github.com/insolar/assured-ledger/ledger-core/rms"
"github.com/insolar/assured-ledger/ledger-core/vanilla/cryptkit"
"github.com/insolar/assured-ledger/ledger-core/vanilla/injector"
"github.com/insolar/assured-ledger/ledger-core/vanilla/protokit"
"github.com/insolar/assured-ledger/ledger-core/vanilla/throw"
)
func NewRecordBuilderFromDependencies(deps injector.DependencyInjector) RecordBuilder {
var ps crypto.PlatformScheme
var ref reference.Global
deps.MustInject(&ps)
deps.MustInjectByID(insapp.LocalNodeRefInjectionID, &ref)
rs := ps.RecordScheme()
return RecordBuilder{
RecordScheme: rs,
ProducerSigner: cryptkit.AsDataSigner(rs.RecordDigester(), rs.RecordSigner()),
ProducerRef: ref,
}
}
type RecordBuilder struct {
RecordScheme crypto.RecordScheme
RefTemplate reference.Template
ProducerSigner cryptkit.DataSigner
ProducerRef reference.Holder
Requests []*rms.LRegisterRequest
}
func (v RecordBuilder) ApplySignature(req *rms.LRegisterRequest) {
switch {
case req.AnticipatedRef.IsEmpty():
panic(throw.IllegalValue())
case req.OverrideRecordType != 0:
// override fields are only allowed for overridden types
case !req.OverrideRootRef.IsEmpty():
panic(throw.IllegalValue())
case !req.OverridePrevRef.IsEmpty():
panic(throw.IllegalValue())
case !req.OverrideReasonRef.IsEmpty():
panic(throw.IllegalValue())
}
rlv := req.TryGetLazy()
if rlv.IsZero() {
panic(throw.IllegalValue())
}
rs := v.RecordScheme.RecordDigester()
digester := rs.NewHasher()
digester.DigestOf(rlv)
if req.OverrideRecordType != 0 {
rc := catalog.Excerpt{
RecordType: req.OverrideRecordType,
RootRef: req.OverrideRootRef.NormEmpty(),
PrevRef: req.OverridePrevRef.NormEmpty(),
ReasonRef: req.OverrideReasonRef.NormEmpty(),
}
b, err := rc.Marshal()
if err != nil {
panic(err)
}
_, sz, err := protokit.DecodePolymorphFromBytes(b, true)
if err != nil {
panic(err)
}
digester.DigestBytes(b[sz:])
}
digest := digester.SumToDigest()
sign := v.ProducerSigner.SignDigest(digest)
req.ProducerSignature.Set(sign)
req.ProducedBy.Set(v.ProducerRef)
}
func (v RecordBuilder) MakeLineStart(record rms.BasicRecord) (RecordBuilder, *rms.LRegisterRequest) {
initRq := v.buildRequest(record)
v.RefTemplate = reference.NewRefTemplate(initRq.AnticipatedRef.Get(), v.RefTemplate.LocalHeader().Pulse())
v.Requests = []*rms.LRegisterRequest{initRq}
return v, initRq
}
func (v RecordBuilder) BuildRequest(record rms.BasicRecord) *rms.LRegisterRequest {
return v.buildRequest(record)
}
func (v *RecordBuilder) Add(record rms.BasicRecord) *rms.LRegisterRequest {
req := v.buildRequest(record)
v.Requests = append(v.Requests, req)
return req
}
func (v RecordBuilder) buildRequest(record rms.BasicRecord) *rms.LRegisterRequest {
req := &rms.LRegisterRequest{}
if err := req.SetAsLazy(record); err != nil {
panic(err)
}
rlv := req.TryGetLazy()
if rlv.IsZero() {
panic(throw.IllegalValue())
}
digester := v.RecordScheme.ReferenceDigester().NewHasher()
digest := digester.DigestOf(rlv).SumToDigest()
localHash := reference.CopyToLocalHash(digest)
ref := v.RefTemplate.WithHash(localHash)
req.AnticipatedRef.Set(ref)
return req
}
func (v RecordBuilder) MakeSet() inspectsvc.RegisterRequestSet {
return v.BuildSet(v.Requests...)
}
func (v RecordBuilder) BuildSet(requests ...*rms.LRegisterRequest) (r inspectsvc.RegisterRequestSet) {
if len(requests) == 0 {
return
}
r.Requests = requests
for _, req := range requests {
switch {
case req.AnticipatedRef.IsEmpty():
panic(throw.IllegalValue())
case req.ProducedBy.IsEmpty():
v.ApplySignature(req)
}
}
r0 := r.Requests[0]
rlv := r0.AnyRecordLazy.TryGetLazy()
if rlv.IsZero() {
panic(throw.IllegalValue())
}
var err error
r.Excerpt, err = catalog.ReadExcerptFromLazy(rlv)
if err != nil {
panic(err)
}
if r0.OverrideRecordType != 0 {
// TODO check if record type can be overridden
r.Excerpt.RecordType = r0.OverrideRecordType
r.Excerpt.RootRef = r0.OverrideRootRef.NormEmpty()
r.Excerpt.PrevRef = r0.OverrideRootRef.NormEmpty()
r.Excerpt.ReasonRef = r0.OverrideReasonRef.NormEmpty()
}
return r
}