[FAB-6369] support local idemix MSP for go CLI

This change set enables local MSP support for the idemix MSP type. A new
core.yaml option (localMspType) is used to determine the MSP type. The
default is 'bccsp', but it can be set to 'idemix' to support idemix.

Change-Id: Ia48905b53e2411e8f0152f9f6b8c3e16808bfee0
Signed-off-by: Alessandro Sorniotti <ale.linux@sopit.net>

Author: ale-linux

msp/configbuilder.go

@@ -146,6 +146,20 @@ func SetupBCCSPKeystoreConfig(bccspConfig *factory.FactoryOpts, keystoreDir stri
 	return bccspConfig
 }
 
+// GetLocalMspConfigWithType returns a local MSP
+// configuration for the MSP in the specified
+// directory, with the specified ID and type
+func GetLocalMspConfigWithType(dir string, bccspConfig *factory.FactoryOpts, ID, mspType string) (*msp.MSPConfig, error) {
+	switch mspType {
+	case ProviderTypeToString(FABRIC):
+		return GetLocalMspConfig(dir, bccspConfig, ID)
+	case ProviderTypeToString(IDEMIX):
+		return GetIdemixMspConfig(dir, ID)
+	default:
+		return nil, errors.Errorf("unknown MSP type '%s'", mspType)
+	}
+}
+
 func GetLocalMspConfig(dir string, bccspConfig *factory.FactoryOpts, ID string) (*msp.MSPConfig, error) {
 	signcertDir := filepath.Join(dir, signcerts)
 	keystoreDir := filepath.Join(dir, keystore)

msp/mgmt/mgmt.go

@@ -26,8 +26,23 @@ import (
 	"github.com/hyperledger/fabric/msp"
 	"github.com/hyperledger/fabric/msp/cache"
 	"github.com/pkg/errors"
+	"github.com/spf13/viper"
 )
 
+// LoadLocalMspWithType loads the local MSP with the specified type from the specified directory
+func LoadLocalMspWithType(dir string, bccspConfig *factory.FactoryOpts, mspID, mspType string) error {
+	if mspID == "" {
+		return errors.New("the local MSP must have an ID")
+	}
+
+	conf, err := msp.GetLocalMspConfigWithType(dir, bccspConfig, mspID, mspType)
+	if err != nil {
+		return err
+	}
+
+	return GetLocalMSP().Setup(conf)
+}
+
 // LoadLocalMsp loads the local MSP from the specified directory
 func LoadLocalMsp(dir string, bccspConfig *factory.FactoryOpts, mspID string) error {
 	if mspID == "" {
@@ -115,6 +130,23 @@ func GetLocalMSP() msp.MSP {
 	var lclMsp msp.MSP
 	var created bool = false
 	{
+		// determine the type of MSP (by default, we'll use bccspMSP)
+		mspType := viper.GetString("peer.localMspType")
+		if mspType == "" {
+			mspType = msp.ProviderTypeToString(msp.FABRIC)
+		}
+
+		// based on the MSP type, generate the new opts
+		var newOpts msp.NewOpts
+		switch mspType {
+		case msp.ProviderTypeToString(msp.FABRIC):
+			newOpts = &msp.BCCSPNewOpts{NewBaseOpts: msp.NewBaseOpts{Version: msp.MSPv1_0}}
+		case msp.ProviderTypeToString(msp.IDEMIX):
+			newOpts = &msp.IdemixNewOpts{msp.NewBaseOpts{Version: msp.MSPv1_1}}
+		default:
+			panic("msp type " + mspType + " unknown")
+		}
+
 		m.Lock()
 		defer m.Unlock()
 
@@ -123,14 +155,21 @@ func GetLocalMSP() msp.MSP {
 			var err error
 			created = true
 
-			mspInst, err := msp.New(&msp.BCCSPNewOpts{NewBaseOpts: msp.NewBaseOpts{Version: msp.MSPv1_0}})
+			mspInst, err := msp.New(newOpts)
 			if err != nil {
 				mspLogger.Fatalf("Failed to initialize local MSP, received err %+v", err)
 			}
 
-			lclMsp, err = cache.New(mspInst)
-			if err != nil {
-				mspLogger.Fatalf("Failed to initialize local MSP, received err %+v", err)
+			switch mspType {
+			case msp.ProviderTypeToString(msp.FABRIC):
+				lclMsp, err = cache.New(mspInst)
+				if err != nil {
+					mspLogger.Fatalf("Failed to initialize local MSP, received err %+v", err)
+				}
+			case msp.ProviderTypeToString(msp.IDEMIX):
+				lclMsp = mspInst
+			default:
+				panic("msp type " + mspType + " unknown")
 			}
 			localMsp = lclMsp
 		}

peer/common/common.go

@@ -85,7 +85,7 @@ func InitConfig(cmdRoot string) error {
 }
 
 //InitCrypto initializes crypto for this peer
-func InitCrypto(mspMgrConfigDir string, localMSPID string) error {
+func InitCrypto(mspMgrConfigDir, localMSPID, localMSPType string) error {
 	var err error
 	// Check whenever msp folder exists
 	_, err = os.Stat(mspMgrConfigDir)
@@ -101,9 +101,9 @@ func InitCrypto(mspMgrConfigDir string, localMSPID string) error {
 		return errors.WithMessage(err, "could not parse YAML config")
 	}
 
-	err = mspmgmt.LoadLocalMsp(mspMgrConfigDir, bccspConfig, localMSPID)
+	err = mspmgmt.LoadLocalMspWithType(mspMgrConfigDir, bccspConfig, localMSPID, localMSPType)
 	if err != nil {
-		return errors.WithMessage(err, fmt.Sprintf("error when setting up MSP from directory %s", mspMgrConfigDir))
+		return errors.WithMessage(err, fmt.Sprintf("error when setting up MSP of type %s from directory %s", localMSPType, mspMgrConfigDir))
 	}
 
 	return nil

peer/common/common_test.go

@@ -53,9 +53,9 @@ func TestInitConfig(t *testing.T) {
 	}
 }
 
-func TestINitCryptoMissingDir(t *testing.T) {
+func TestInitCryptoMissingDir(t *testing.T) {
 	dir := os.TempDir() + "/" + util.GenerateUUID()
-	err := common.InitCrypto(dir, "DEFAULT")
+	err := common.InitCrypto(dir, "DEFAULT", msp.ProviderTypeToString(msp.FABRIC))
 	assert.Error(t, err, "Should be able to initialize crypto with non-existing directory")
 	assert.Contains(t, err.Error(), fmt.Sprintf("missing %s folder", dir))
 }
@@ -64,12 +64,12 @@ func TestInitCrypto(t *testing.T) {
 
 	mspConfigPath, err := config.GetDevMspDir()
 	localMspId := "DEFAULT"
-	err = common.InitCrypto(mspConfigPath, localMspId)
+	err = common.InitCrypto(mspConfigPath, localMspId, msp.ProviderTypeToString(msp.FABRIC))
 	assert.NoError(t, err, "Unexpected error [%s] calling InitCrypto()", err)
-	err = common.InitCrypto("/etc/foobaz", localMspId)
+	err = common.InitCrypto("/etc/foobaz", localMspId, msp.ProviderTypeToString(msp.FABRIC))
 	assert.Error(t, err, fmt.Sprintf("Expected error [%s] calling InitCrypto()", err))
 	localMspId = ""
-	err = common.InitCrypto(mspConfigPath, localMspId)
+	err = common.InitCrypto(mspConfigPath, localMspId, msp.ProviderTypeToString(msp.FABRIC))
 	assert.Error(t, err, fmt.Sprintf("Expected error [%s] calling InitCrypto()", err))
 }
 

peer/main.go

@@ -1,40 +1,29 @@
 /*
-Copyright IBM Corp. 2016 All Rights Reserved.
+Copyright IBM Corp. All Rights Reserved.
 
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-		 http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
+SPDX-License-Identifier: Apache-2.0
 */
 
 package main
 
 import (
 	"fmt"
+	_ "net/http/pprof"
 	"os"
 	"runtime"
 	"strings"
 
-	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
-
-	_ "net/http/pprof"
-
 	"github.com/hyperledger/fabric/common/flogging"
 	"github.com/hyperledger/fabric/core/config"
+	"github.com/hyperledger/fabric/msp"
 	"github.com/hyperledger/fabric/peer/chaincode"
 	"github.com/hyperledger/fabric/peer/channel"
 	"github.com/hyperledger/fabric/peer/clilogging"
 	"github.com/hyperledger/fabric/peer/common"
 	"github.com/hyperledger/fabric/peer/node"
 	"github.com/hyperledger/fabric/peer/version"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 )
 
 var logger = flogging.MustGetLogger("main")
@@ -102,7 +91,11 @@ func main() {
 	// Init the MSP
 	var mspMgrConfigDir = config.GetPath("peer.mspConfigPath")
 	var mspID = viper.GetString("peer.localMspId")
-	err = common.InitCrypto(mspMgrConfigDir, mspID)
+	var mspType = viper.GetString("peer.localMspType")
+	if mspType == "" {
+		mspType = msp.ProviderTypeToString(msp.FABRIC)
+	}
+	err = common.InitCrypto(mspMgrConfigDir, mspID, mspType)
 	if err != nil { // Handle errors reading the config file
 		logger.Errorf("Cannot run peer because %s", err.Error())
 		os.Exit(1)

peer/node/start.go

@@ -37,6 +37,7 @@ import (
 	"github.com/hyperledger/fabric/core/scc"
 	"github.com/hyperledger/fabric/events/producer"
 	"github.com/hyperledger/fabric/gossip/service"
+	"github.com/hyperledger/fabric/msp"
 	"github.com/hyperledger/fabric/msp/mgmt"
 	"github.com/hyperledger/fabric/peer/common"
 	peergossip "github.com/hyperledger/fabric/peer/gossip"
@@ -93,6 +94,17 @@ func initSysCCs() {
 }
 
 func serve(args []string) error {
+	// currently the peer only works with the standard MSP
+	// because in certain scenarios the MSP has to make sure
+	// that from a single credential you only have a single 'identity'.
+	// Idemix does not support this *YET* but it can be easily
+	// fixed to support it. For now, we just make sure that
+	// the peer only comes up with the standard MSP
+	mspType := mgmt.GetLocalMSP().GetType()
+	if mspType != msp.FABRIC {
+		panic("Unsupported msp type " + msp.ProviderTypeToString(mspType))
+	}
+
 	logger.Infof("Starting %s", version.GetInfo())
 
 	//aclmgmt initializes a proxy Processor that will be redirected to RSCC provider

sampleconfig/core.yaml

@@ -331,6 +331,9 @@ peer:
         # attempts until its retry logic gives up and returns an error
         reconnectTotalTimeThreshold: 3600s
 
+    # Type for the local MSP - by default it's of type bccsp
+    localMspType: bccsp
+
     # Used with Go profiling tools only in none production environment. In
     # production, it should be disabled (eg enabled: false)
     profile: