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join.go 3.54 KB
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/*
Copyright IBM Corp. 2017 All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package channel
import (
"context"
"errors"
"fmt"
"io/ioutil"
pcommon "github.com/hyperledger/fabric-protos-go/common"
pb "github.com/hyperledger/fabric-protos-go/peer"
"github.com/hyperledger/fabric/core/scc/cscc"
"github.com/hyperledger/fabric/internal/peer/common"
"github.com/hyperledger/fabric/protoutil"
"github.com/spf13/cobra"
)
const commandDescription = "Joins the peer to a channel."
func joinCmd(cf *ChannelCmdFactory) *cobra.Command {
// Set the flags on the channel start command.
joinCmd := &cobra.Command{
Use: "join",
Short: commandDescription,
Long: commandDescription,
RunE: func(cmd *cobra.Command, args []string) error {
return join(cmd, args, cf)
},
}
flagList := []string{
"blockpath",
}
attachFlags(joinCmd, flagList)
return joinCmd
}
//GBFileNotFoundErr genesis block file not found
type GBFileNotFoundErr string
func (e GBFileNotFoundErr) Error() string {
return fmt.Sprintf("genesis block file not found %s", string(e))
}
//ProposalFailedErr proposal failed
type ProposalFailedErr string
func (e ProposalFailedErr) Error() string {
return fmt.Sprintf("proposal failed (err: %s)", string(e))
}
func getJoinCCSpec() (*pb.ChaincodeSpec, error) {
if genesisBlockPath == common.UndefinedParamValue {
return nil, errors.New("Must supply genesis block file")
}
gb, err := ioutil.ReadFile(genesisBlockPath)
if err != nil {
return nil, GBFileNotFoundErr(err.Error())
}
// Build the spec
input := &pb.ChaincodeInput{Args: [][]byte{[]byte(cscc.JoinChain), gb}}
spec := &pb.ChaincodeSpec{
Type: pb.ChaincodeSpec_Type(pb.ChaincodeSpec_Type_value["GOLANG"]),
ChaincodeId: &pb.ChaincodeID{Name: "cscc"},
Input: input,
}
return spec, nil
}
func executeJoin(cf *ChannelCmdFactory) (err error) {
spec, err := getJoinCCSpec()
if err != nil {
return err
}
// Build the ChaincodeInvocationSpec message
invocation := &pb.ChaincodeInvocationSpec{ChaincodeSpec: spec}
creator, err := cf.Signer.Serialize()
if err != nil {
return fmt.Errorf("Error serializing identity for %s: %s", cf.Signer.GetIdentifier(), err)
}
var prop *pb.Proposal
prop, _, err = protoutil.CreateProposalFromCIS(pcommon.HeaderType_CONFIG, "", invocation, creator)
if err != nil {
return fmt.Errorf("Error creating proposal for join %s", err)
}
var signedProp *pb.SignedProposal
signedProp, err = protoutil.GetSignedProposal(prop, cf.Signer)
if err != nil {
return fmt.Errorf("Error creating signed proposal %s", err)
}
var proposalResp *pb.ProposalResponse
proposalResp, err = cf.EndorserClient.ProcessProposal(context.Background(), signedProp)
if err != nil {
return ProposalFailedErr(err.Error())
}
if proposalResp == nil {
return ProposalFailedErr("nil proposal response")
}
if proposalResp.Response.Status != 0 && proposalResp.Response.Status != 200 {
return ProposalFailedErr(fmt.Sprintf("bad proposal response %d: %s", proposalResp.Response.Status, proposalResp.Response.Message))
}
logger.Info("Successfully submitted proposal to join channel")
return nil
}
func join(cmd *cobra.Command, args []string, cf *ChannelCmdFactory) error {
if genesisBlockPath == common.UndefinedParamValue {
return errors.New("Must supply genesis block path")
}
// Parsing of the command line is done so silence cmd usage
cmd.SilenceUsage = true
var err error
if cf == nil {
cf, err = InitCmdFactory(EndorserRequired, PeerDeliverNotRequired, OrdererNotRequired)
if err != nil {
return err
}
}
return executeJoin(cf)
}
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fabric
fabric
v2.1.1

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