Exemple #1
0
// EXP_ExecuteWithBinding executes a transaction with a specific binding/TXHandler
func (d *Devops) EXP_ExecuteWithBinding(ctx context.Context, executeWithBinding *pb.ExecuteWithBinding) (*pb.Response, error) {

	if d.isSecurityEnabled {
		devopsLogger.Debug("Getting TxHandler for binding")

		txHandler, err := d.bindingMap.getTxHandlerForBinding(executeWithBinding.Binding)

		if nil != err {
			return &pb.Response{Status: pb.Response_FAILURE, Msg: []byte(err.Error())}, nil
		}

		ctorbytes, merr := asn1.Marshal(*executeWithBinding.ChaincodeInvocationSpec.ChaincodeSpec.CtorMsg)
		if merr != nil {
			return nil, fmt.Errorf("Error marshalling constructor: %s", err)
		}
		tid, generr := util.GenerateIDWithAlg("", ctorbytes)
		if generr != nil {
			return nil, fmt.Errorf("Error: cannot generate TX ID (executing with binding)")
		}

		tx, err := txHandler.NewChaincodeExecute(executeWithBinding.ChaincodeInvocationSpec, tid)
		if err != nil {
			return nil, fmt.Errorf("Error creating executing with binding:  %s", err)
		}

		return d.coord.ExecuteTransaction(tx), nil
		//return &pb.Response{Status: pb.Response_FAILURE, Msg: []byte("NOT IMPLEMENTED")}, nil

		//return &pb.Response{Status: pb.Response_SUCCESS, Msg: sigmaOutputBytes}, nil
	}
	devopsLogger.Warning("Security NOT enabled")
	return &pb.Response{Status: pb.Response_FAILURE, Msg: []byte("Security NOT enabled")}, nil
}
Exemple #2
0
func (d *Devops) invokeOrQuery(ctx context.Context, chaincodeInvocationSpec *pb.ChaincodeInvocationSpec, attributes []string, invoke bool) (*pb.Response, error) {

	if chaincodeInvocationSpec.ChaincodeSpec.ChaincodeID.Name == "" {
		return nil, fmt.Errorf("name not given for invoke/query")
	}

	// Now create the Transactions message and send to Peer.
	var customIDgenAlg = strings.ToLower(chaincodeInvocationSpec.IdGenerationAlg)
	var id string
	var generr error
	if customIDgenAlg != "" {
		id, generr = util.GenerateIDWithAlg(customIDgenAlg, chaincodeInvocationSpec.ChaincodeSpec.CtorMsg.Args[0])
		if generr != nil {
			return nil, generr
		}
	} else {
		id = util.GenerateUUID()
	}
	devopsLogger.Infof("Transaction ID: %v", id)
	var transaction *pb.Transaction
	var err error
	var sec crypto.Client
	if peer.SecurityEnabled() {
		if devopsLogger.IsEnabledFor(logging.DEBUG) {
			devopsLogger.Debugf("Initializing secure devops using context %s", chaincodeInvocationSpec.ChaincodeSpec.SecureContext)
		}
		sec, err = crypto.InitClient(chaincodeInvocationSpec.ChaincodeSpec.SecureContext, nil)
		defer crypto.CloseClient(sec)
		// remove the security context since we are no longer need it down stream
		chaincodeInvocationSpec.ChaincodeSpec.SecureContext = ""
		if nil != err {
			return nil, err
		}
	}

	transaction, err = d.createExecTx(chaincodeInvocationSpec, attributes, id, invoke, sec)
	if err != nil {
		return nil, err
	}
	if devopsLogger.IsEnabledFor(logging.DEBUG) {
		devopsLogger.Debugf("Sending invocation transaction (%s) to validator", transaction.Uuid)
	}
	resp := d.coord.ExecuteTransaction(transaction)
	if resp.Status == pb.Response_FAILURE {
		err = fmt.Errorf(string(resp.Msg))
	} else {
		if !invoke && nil != sec && viper.GetBool("security.privacy") {
			if resp.Msg, err = sec.DecryptQueryResult(transaction, resp.Msg); nil != err {
				devopsLogger.Errorf("Failed decrypting query transaction result %s", string(resp.Msg[:]))
				//resp = &pb.Response{Status: pb.Response_FAILURE, Msg: []byte(err.Error())}
			}
		}
	}
	return resp, err
}