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