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list.go
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/
list.go
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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package chaincode
import (
"bytes"
"encoding/hex"
"fmt"
"reflect"
"github.com/golang/protobuf/proto"
cb "github.com/hyperledger/fabric/protos/common"
pb "github.com/hyperledger/fabric/protos/peer"
"github.com/hyperledger/fabric/protos/utils"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"golang.org/x/net/context"
)
var getInstalledChaincodes bool
var getInstantiatedChaincodes bool
var chaincodeListCmd *cobra.Command
const list_cmdname = "list"
// installCmd returns the cobra command for Chaincode Deploy
func listCmd(cf *ChaincodeCmdFactory) *cobra.Command {
chaincodeListCmd = &cobra.Command{
Use: "list",
Short: "Get the instantiated chaincodes on a channel or installed chaincodes on a peer.",
Long: "Get the instantiated chaincodes in the channel if specify channel, or get installed chaincodes on the peer",
RunE: func(cmd *cobra.Command, args []string) error {
return getChaincodes(cmd, cf)
},
}
flagList := []string{
"channelID",
"installed",
"instantiated",
"peerAddresses",
"tlsRootCertFiles",
"connectionProfile",
}
attachFlags(chaincodeListCmd, flagList)
return chaincodeListCmd
}
func getChaincodes(cmd *cobra.Command, cf *ChaincodeCmdFactory) error {
if getInstantiatedChaincodes && channelID == "" {
return errors.New("The required parameter 'channelID' is empty. Rerun the command with -C flag")
}
// Parsing of the command line is done so silence cmd usage
cmd.SilenceUsage = true
var err error
if cf == nil {
cf, err = InitCmdFactory(cmd.Name(), true, false)
if err != nil {
return err
}
}
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
if getInstalledChaincodes && (!getInstantiatedChaincodes) {
prop, _, err = utils.CreateGetInstalledChaincodesProposal(creator)
} else if getInstantiatedChaincodes && (!getInstalledChaincodes) {
prop, _, err = utils.CreateGetChaincodesProposal(channelID, creator)
} else {
return fmt.Errorf("Must explicitly specify \"--installed\" or \"--instantiated\"")
}
if err != nil {
return fmt.Errorf("Error creating proposal %s: %s", chainFuncName, err)
}
var signedProp *pb.SignedProposal
signedProp, err = utils.GetSignedProposal(prop, cf.Signer)
if err != nil {
return fmt.Errorf("Error creating signed proposal %s: %s", chainFuncName, err)
}
// list is currently only supported for one peer
proposalResponse, err := cf.EndorserClients[0].ProcessProposal(context.Background(), signedProp)
if err != nil {
return errors.Errorf("Error endorsing %s: %s", chainFuncName, err)
}
if proposalResponse.Response == nil {
return errors.Errorf("Proposal response had nil 'response'")
}
if proposalResponse.Response.Status != int32(cb.Status_SUCCESS) {
return errors.Errorf("Bad response: %d - %s", proposalResponse.Response.Status, proposalResponse.Response.Message)
}
cqr := &pb.ChaincodeQueryResponse{}
err = proto.Unmarshal(proposalResponse.Response.Payload, cqr)
if err != nil {
return err
}
if getInstalledChaincodes {
fmt.Println("Get installed chaincodes on peer:")
} else {
fmt.Printf("Get instantiated chaincodes on channel %s:\n", channelID)
}
for _, chaincode := range cqr.Chaincodes {
fmt.Printf("%v\n", ccInfo{chaincode}.String())
}
return nil
}
type ccInfo struct {
*pb.ChaincodeInfo
}
func (cci ccInfo) String() string {
b := bytes.Buffer{}
md := reflect.ValueOf(*cci.ChaincodeInfo)
md2 := reflect.Indirect(reflect.ValueOf(*cci.ChaincodeInfo)).Type()
for i := 0; i < md.NumField(); i++ {
f := md.Field(i)
val := f.String()
if isBytes(f) {
val = hex.EncodeToString(f.Bytes())
}
if len(val) == 0 {
continue
}
b.WriteString(fmt.Sprintf("%s: %s, ", md2.Field(i).Name, val))
}
return b.String()[:len(b.String())-2]
}
func isBytes(v reflect.Value) bool {
return v.Kind() == reflect.Slice && v.Type().Elem().Kind() == reflect.Uint8
}