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common.go
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common.go
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/*
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/common"
"github.com/hyperledger/fabric/protos/msp"
"github.com/hyperledger/fabric/protos/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"}
}
var PayloadDataMap = map[int32]proto.Message{}
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 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
}