-
Notifications
You must be signed in to change notification settings - Fork 0
/
common.go
153 lines (122 loc) · 4.02 KB
/
common.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
/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package commonext
import (
"fmt"
"github.com/golang/protobuf/proto"
"github.com/hyperledger/fabric-protos-go/common"
"github.com/hyperledger/fabric-protos-go/msp"
"github.com/hyperledger/fabric-protos-go/peer"
)
type Envelope struct{ *common.Envelope }
func (e *Envelope) Underlying() proto.Message {
return e.Envelope
}
func (e *Envelope) StaticallyOpaqueFields() []string {
return []string{"payload"}
}
func (e *Envelope) StaticallyOpaqueFieldProto(name string) (proto.Message, error) {
if name != e.StaticallyOpaqueFields()[0] {
return nil, fmt.Errorf("not a marshaled field: %s", name)
}
return &common.Payload{}, nil
}
type Payload struct{ *common.Payload }
func (p *Payload) Underlying() proto.Message {
return p.Payload
}
func (p *Payload) VariablyOpaqueFields() []string {
return []string{"data"}
}
func (p *Payload) VariablyOpaqueFieldProto(name string) (proto.Message, error) {
if name != p.VariablyOpaqueFields()[0] {
return nil, fmt.Errorf("not a marshaled field: %s", name)
}
if p.Header == nil {
return nil, fmt.Errorf("cannot determine payload type when header is missing")
}
ch := &common.ChannelHeader{}
if err := proto.Unmarshal(p.Header.ChannelHeader, ch); err != nil {
return nil, fmt.Errorf("corrupt channel header: %s", err)
}
switch ch.Type {
case int32(common.HeaderType_CONFIG):
return &common.ConfigEnvelope{}, nil
case int32(common.HeaderType_ORDERER_TRANSACTION):
return &common.Envelope{}, nil
case int32(common.HeaderType_CONFIG_UPDATE):
return &common.ConfigUpdateEnvelope{}, nil
case int32(common.HeaderType_MESSAGE):
// Only used by broadcast_msg sample client
return &common.ConfigValue{}, nil
case int32(common.HeaderType_ENDORSER_TRANSACTION):
return &peer.Transaction{}, nil
default:
return nil, fmt.Errorf("decoding type %v is unimplemented", ch.Type)
}
}
type ChannelHeader struct{ *common.ChannelHeader }
func (ch *ChannelHeader) Underlying() proto.Message {
return ch.ChannelHeader
}
func (ch *ChannelHeader) VariablyOpaqueFields() []string {
return []string{"extension"}
}
func (ch *ChannelHeader) VariablyOpaqueFieldProto(name string) (proto.Message, error) {
if name != "extension" {
return nil, fmt.Errorf("not an opaque field")
}
switch ch.Type {
case int32(common.HeaderType_ENDORSER_TRANSACTION):
return &peer.ChaincodeHeaderExtension{}, nil
default:
return nil, fmt.Errorf("channel header extension only valid for endorser transactions")
}
}
type Header struct{ *common.Header }
func (h *Header) Underlying() proto.Message {
return h.Header
}
func (h *Header) StaticallyOpaqueFields() []string {
return []string{"channel_header", "signature_header"}
}
func (h *Header) StaticallyOpaqueFieldProto(name string) (proto.Message, error) {
switch name {
case h.StaticallyOpaqueFields()[0]: // channel_header
return &common.ChannelHeader{}, nil
case h.StaticallyOpaqueFields()[1]: // signature_header
return &common.SignatureHeader{}, nil
default:
return nil, fmt.Errorf("unknown header field: %s", name)
}
}
type SignatureHeader struct{ *common.SignatureHeader }
func (sh *SignatureHeader) Underlying() proto.Message {
return sh.SignatureHeader
}
func (sh *SignatureHeader) StaticallyOpaqueFields() []string {
return []string{"creator"}
}
func (sh *SignatureHeader) StaticallyOpaqueFieldProto(name string) (proto.Message, error) {
switch name {
case sh.StaticallyOpaqueFields()[0]: // creator
return &msp.SerializedIdentity{}, nil
default:
return nil, fmt.Errorf("unknown header field: %s", name)
}
}
type BlockData struct{ *common.BlockData }
func (bd *BlockData) Underlying() proto.Message {
return bd.BlockData
}
func (bd *BlockData) StaticallyOpaqueSliceFields() []string {
return []string{"data"}
}
func (bd *BlockData) StaticallyOpaqueSliceFieldProto(fieldName string, index int) (proto.Message, error) {
if fieldName != bd.StaticallyOpaqueSliceFields()[0] {
return nil, fmt.Errorf("not an opaque slice field: %s", fieldName)
}
return &common.Envelope{}, nil
}