114 lines
3.0 KiB
Go
114 lines
3.0 KiB
Go
/*
|
|
Copyright IBM Corp. All Rights Reserved.
|
|
|
|
SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
package channel
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
|
|
"github.com/golang/protobuf/proto"
|
|
cb "github.com/hyperledger/fabric-protos-go/common"
|
|
pb "github.com/hyperledger/fabric-protos-go/peer"
|
|
"github.com/hyperledger/fabric/core/scc/qscc"
|
|
"github.com/hyperledger/fabric/internal/peer/common"
|
|
"github.com/hyperledger/fabric/protoutil"
|
|
"github.com/pkg/errors"
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
func getinfoCmd(cf *ChannelCmdFactory) *cobra.Command {
|
|
getinfoCmd := &cobra.Command{
|
|
Use: "getinfo",
|
|
Short: "get blockchain information of a specified channel.",
|
|
Long: "get blockchain information of a specified channel. Requires '-c'.",
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
return getinfo(cmd, cf)
|
|
},
|
|
}
|
|
flagList := []string{
|
|
"channelID",
|
|
}
|
|
attachFlags(getinfoCmd, flagList)
|
|
|
|
return getinfoCmd
|
|
}
|
|
|
|
func (cc *endorserClient) getBlockChainInfo() (*cb.BlockchainInfo, error) {
|
|
var err error
|
|
|
|
invocation := &pb.ChaincodeInvocationSpec{
|
|
ChaincodeSpec: &pb.ChaincodeSpec{
|
|
Type: pb.ChaincodeSpec_Type(pb.ChaincodeSpec_Type_value["GOLANG"]),
|
|
ChaincodeId: &pb.ChaincodeID{Name: "qscc"},
|
|
Input: &pb.ChaincodeInput{Args: [][]byte{[]byte(qscc.GetChainInfo), []byte(channelID)}},
|
|
},
|
|
}
|
|
|
|
var prop *pb.Proposal
|
|
c, _ := cc.cf.Signer.Serialize()
|
|
prop, _, err = protoutil.CreateProposalFromCIS(cb.HeaderType_ENDORSER_TRANSACTION, "", invocation, c)
|
|
if err != nil {
|
|
return nil, errors.WithMessage(err, "cannot create proposal")
|
|
}
|
|
|
|
var signedProp *pb.SignedProposal
|
|
signedProp, err = protoutil.GetSignedProposal(prop, cc.cf.Signer)
|
|
if err != nil {
|
|
return nil, errors.WithMessage(err, "cannot create signed proposal")
|
|
}
|
|
|
|
proposalResp, err := cc.cf.EndorserClient.ProcessProposal(context.Background(), signedProp)
|
|
if err != nil {
|
|
return nil, errors.WithMessage(err, "failed sending proposal")
|
|
}
|
|
|
|
if proposalResp.Response == nil || proposalResp.Response.Status != 200 {
|
|
return nil, errors.Errorf("received bad response, status %d: %s", proposalResp.Response.Status, proposalResp.Response.Message)
|
|
}
|
|
|
|
blockChainInfo := &cb.BlockchainInfo{}
|
|
err = proto.Unmarshal(proposalResp.Response.Payload, blockChainInfo)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "cannot read qscc response")
|
|
}
|
|
|
|
return blockChainInfo, nil
|
|
}
|
|
|
|
func getinfo(cmd *cobra.Command, cf *ChannelCmdFactory) error {
|
|
// the global chainID filled by the "-c" command
|
|
if channelID == common.UndefinedParamValue {
|
|
return errors.New("Must supply channel ID")
|
|
}
|
|
// 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
|
|
}
|
|
}
|
|
|
|
client := &endorserClient{cf}
|
|
|
|
blockChainInfo, err := client.getBlockChainInfo()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
jsonBytes, err := json.Marshal(blockChainInfo)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
fmt.Printf("Blockchain info: %s\n", string(jsonBytes))
|
|
|
|
return nil
|
|
}
|