Example #1
0
func (*Endorser) getTxSimulator(ledgername string) (ledger.TxSimulator, error) {
	lgr := peer.GetLedger(ledgername)
	if lgr == nil {
		return nil, fmt.Errorf("chain does not exist(%s)", ledgername)
	}
	return lgr.NewTxSimulator()
}
func startTxSimulation(ctxt context.Context, chainID string) (context.Context, ledger.TxSimulator, error) {
	lgr := peer.GetLedger(chainID)
	txsim, err := lgr.NewTxSimulator()
	if err != nil {
		return nil, nil, err
	}

	ctxt = context.WithValue(ctxt, TXSimulatorKey, txsim)
	return ctxt, txsim, nil
}
func finitPeer(lis net.Listener, chainIDs ...string) {
	if lis != nil {
		for _, c := range chainIDs {
			deRegisterSysCCs(c)
			if lgr := peer.GetLedger(c); lgr != nil {
				lgr.Close()
			}
		}
		closeListenerAndSleep(lis)
	}

	ledgerPath := viper.GetString("peer.fileSystemPath")
	os.RemoveAll(ledgerPath)
	os.RemoveAll(filepath.Join(os.TempDir(), "hyperledger"))
}
Example #4
0
// deploySysCC deploys the given system chaincode on a chain
func deploySysCC(chainID string, syscc *SystemChaincode) error {
	if !syscc.Enabled || !isWhitelisted(syscc) {
		sysccLogger.Info(fmt.Sprintf("system chaincode (%s,%s) disabled", syscc.Name, syscc.Path))
		return nil
	}

	if chainID == "" && !syscc.ChainlessCC {
		return fmt.Errorf("cannot deploy system chaincode %s without chain id", syscc.Name)
	} else if chainID != "" && syscc.ChainlessCC {
		return fmt.Errorf("cannot deploy chainless system chaincode %s with chain id %s", syscc.Name, chainID)
	}

	var err error

	ctxt := context.Background()
	if !syscc.ChainlessCC {
		lgr := peer.GetLedger(chainID)
		var txsim ledger.TxSimulator
		if txsim, err = lgr.NewTxSimulator(); err != nil {
			return err
		}

		ctxt = context.WithValue(ctxt, TXSimulatorKey, txsim)

		defer txsim.Done()
	}

	chaincodeID := &pb.ChaincodeID{Path: syscc.Path, Name: syscc.Name}
	spec := &pb.ChaincodeSpec{Type: pb.ChaincodeSpec_Type(pb.ChaincodeSpec_Type_value["GOLANG"]), ChaincodeID: chaincodeID, CtorMsg: &pb.ChaincodeInput{Args: syscc.InitArgs}}

	// First build and get the deployment spec
	chaincodeDeploymentSpec, err := buildSysCC(ctxt, spec)

	if err != nil {
		sysccLogger.Error(fmt.Sprintf("Error deploying chaincode spec: %v\n\n error: %s", spec, err))
		return err
	}

	txid := util.GenerateUUID()

	cccid := NewCCContext(chainID, chaincodeDeploymentSpec.ChaincodeSpec.ChaincodeID.Name, "", txid, true, nil)

	_, _, err = Execute(ctxt, cccid, chaincodeDeploymentSpec)

	sysccLogger.Infof("system chaincode %s/%s(%s) deployed", syscc.Name, chainID, syscc.Path)

	return err
}
Example #5
0
func isTxValidForVscc(payload *common.Payload, envBytes []byte) error {
	// TODO: Extract the VSCC/policy from LCCC as soon as this is ready
	vscc := "vscc"

	chainName := payload.Header.ChainHeader.ChainID
	if chainName == "" {
		err := fmt.Errorf("transaction header does not contain an chain ID")
		logger.Errorf("%s", err)
		return err
	}

	txid := "N/A" // FIXME: is that appropriate?

	// build arguments for VSCC invocation
	// args[0] - function name (not used now)
	// args[1] - serialized Envelope
	args := [][]byte{[]byte(""), envBytes}

	// create VSCC invocation proposal
	vsccCis := &pb.ChaincodeInvocationSpec{ChaincodeSpec: &pb.ChaincodeSpec{Type: pb.ChaincodeSpec_GOLANG, ChaincodeID: &pb.ChaincodeID{Name: vscc}, CtorMsg: &pb.ChaincodeInput{Args: args}}}
	prop, err := putils.CreateProposalFromCIS(txid, chainName, vsccCis, []byte(""))
	if err != nil {
		logger.Errorf("Cannot create a proposal to invoke VSCC, err %s\n", err)
		return err
	}

	// get context for the chaincode execution
	var txsim ledger.TxSimulator
	lgr := peer.GetLedger(chainName)
	txsim, err = lgr.NewTxSimulator()
	if err != nil {
		logger.Errorf("Cannot obtain tx simulator, err %s\n", err)
		return err
	}
	defer txsim.Done()
	ctxt := context.WithValue(context.Background(), chaincode.TXSimulatorKey, txsim)

	cccid := chaincode.NewCCContext(chainName, vscc, "", txid, true, prop)

	// invoke VSCC
	_, _, err = chaincode.ExecuteChaincode(ctxt, cccid, args)
	if err != nil {
		logger.Errorf("VSCC check failed for transaction, error %s", err)
		return err
	}

	return nil
}
func endTxSimulation(chainID string, txsim ledger.TxSimulator, payload []byte, commit bool, prop *pb.Proposal) error {
	txsim.Done()
	if lgr := peer.GetLedger(chainID); lgr != nil {
		if commit {
			var txSimulationResults []byte
			var err error

			//get simulation results
			if txSimulationResults, err = txsim.GetTxSimulationResults(); err != nil {
				return err
			}

			// assemble a (signed) proposal response message
			resp, err := putils.CreateProposalResponse(prop.Header, prop.Payload, txSimulationResults, nil, nil, signer)
			if err != nil {
				return err
			}

			// get the envelope
			env, err := putils.CreateSignedTx(prop, signer, resp)
			if err != nil {
				return err
			}

			envBytes, err := putils.GetBytesEnvelope(env)
			if err != nil {
				return err
			}

			//create the block with 1 transaction
			block := common.NewBlock(1, []byte{})
			block.Data.Data = [][]byte{envBytes}
			//commit the block
			if err := lgr.Commit(block); err != nil {
				return err
			}
		}
	}

	return nil
}
Example #7
0
// Only exposed for testing purposes - commit the tx simulation so that
// a deploy transaction is persisted and that chaincode can be invoked.
// This makes the endorser test self-sufficient
func (e *Endorser) commitTxSimulation(proposal *pb.Proposal, chainID string, signer msp.SigningIdentity, pResp *pb.ProposalResponse) error {
	tx, err := putils.CreateSignedTx(proposal, signer, pResp)
	if err != nil {
		return err
	}

	lgr := peer.GetLedger(chainID)
	if lgr == nil {
		return fmt.Errorf("failure while looking up the ledger")
	}

	txBytes, err := proto.Marshal(tx)
	if err != nil {
		return err
	}
	block := common.NewBlock(1, []byte{})
	block.Data.Data = [][]byte{txBytes}
	block.Header.DataHash = block.Data.Hash()
	if err = lgr.Commit(block); err != nil {
		return err
	}

	return nil
}