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mgmt.go
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mgmt.go
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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package mgmt
import (
"reflect"
"sync"
"github.com/hyperledger/fabric/bccsp/factory"
"github.com/hyperledger/fabric/common/flogging"
"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 == "" {
return errors.New("the local MSP must have an ID")
}
conf, err := msp.GetLocalMspConfig(dir, bccspConfig, mspID)
if err != nil {
return err
}
return GetLocalMSP().Setup(conf)
}
// FIXME: AS SOON AS THE CHAIN MANAGEMENT CODE IS COMPLETE,
// THESE MAPS AND HELPSER FUNCTIONS SHOULD DISAPPEAR BECAUSE
// OWNERSHIP OF PER-CHAIN MSP MANAGERS WILL BE HANDLED BY IT;
// HOWEVER IN THE INTERIM, THESE HELPER FUNCTIONS ARE REQUIRED
var m sync.Mutex
var localMsp msp.MSP
var mspMap map[string]msp.MSPManager = make(map[string]msp.MSPManager)
var mspLogger = flogging.MustGetLogger("msp")
// TODO - this is a temporary solution to allow the peer to track whether the
// MSPManager has been setup for a channel, which indicates whether the channel
// exists or not
type mspMgmtMgr struct {
msp.MSPManager
// track whether this MSPManager has been setup successfully
up bool
}
func (mgr *mspMgmtMgr) DeserializeIdentity(serializedIdentity []byte) (msp.Identity, error) {
if !mgr.up {
return nil, errors.New("channel doesn't exist")
}
return mgr.MSPManager.DeserializeIdentity(serializedIdentity)
}
func (mgr *mspMgmtMgr) Setup(msps []msp.MSP) error {
err := mgr.MSPManager.Setup(msps)
if err == nil {
mgr.up = true
}
return err
}
// GetManagerForChain returns the msp manager for the supplied
// chain; if no such manager exists, one is created
func GetManagerForChain(chainID string) msp.MSPManager {
m.Lock()
defer m.Unlock()
mspMgr, ok := mspMap[chainID]
if !ok {
mspLogger.Debugf("Created new msp manager for channel `%s`", chainID)
mspMgmtMgr := &mspMgmtMgr{msp.NewMSPManager(), false}
mspMap[chainID] = mspMgmtMgr
mspMgr = mspMgmtMgr
} else {
// check for internal mspManagerImpl and mspMgmtMgr types. if a different
// type is found, it's because a developer has added a new type that
// implements the MSPManager interface and should add a case to the logic
// above to handle it.
if !(reflect.TypeOf(mspMgr).Elem().Name() == "mspManagerImpl" || reflect.TypeOf(mspMgr).Elem().Name() == "mspMgmtMgr") {
panic("Found unexpected MSPManager type.")
}
mspLogger.Debugf("Returning existing manager for channel '%s'", chainID)
}
return mspMgr
}
// GetManagers returns all the managers registered
func GetDeserializers() map[string]msp.IdentityDeserializer {
m.Lock()
defer m.Unlock()
clone := make(map[string]msp.IdentityDeserializer)
for key, mspManager := range mspMap {
clone[key] = mspManager
}
return clone
}
// XXXSetMSPManager is a stopgap solution to transition from the custom MSP config block
// parsing to the channelconfig.Resources interface, while preserving the problematic singleton
// nature of the MSP manager
func XXXSetMSPManager(chainID string, manager msp.MSPManager) {
m.Lock()
defer m.Unlock()
mspMap[chainID] = &mspMgmtMgr{manager, true}
}
// GetLocalMSP returns the local msp (and creates it if it doesn't exist)
func GetLocalMSP() msp.MSP {
m.Lock()
defer m.Unlock()
if localMsp != nil {
return localMsp
}
localMsp = loadLocaMSP()
return localMsp
}
func loadLocaMSP() msp.MSP {
// determine the type of MSP (by default, we'll use bccspMSP)
mspType := viper.GetString("peer.localMspType")
if mspType == "" {
mspType = msp.ProviderTypeToString(msp.FABRIC)
}
var mspOpts = map[string]msp.NewOpts{
msp.ProviderTypeToString(msp.FABRIC): &msp.BCCSPNewOpts{NewBaseOpts: msp.NewBaseOpts{Version: msp.MSPv1_4_3}},
msp.ProviderTypeToString(msp.IDEMIX): &msp.IdemixNewOpts{NewBaseOpts: msp.NewBaseOpts{Version: msp.MSPv1_1}},
}
newOpts, found := mspOpts[mspType]
if !found {
mspLogger.Panicf("msp type " + mspType + " unknown")
}
mspInst, err := msp.New(newOpts)
if err != nil {
mspLogger.Fatalf("Failed to initialize local MSP, received err %+v", err)
}
switch mspType {
case msp.ProviderTypeToString(msp.FABRIC):
mspInst, err = cache.New(mspInst)
if err != nil {
mspLogger.Fatalf("Failed to initialize local MSP, received err %+v", err)
}
case msp.ProviderTypeToString(msp.IDEMIX):
// Do nothing
default:
panic("msp type " + mspType + " unknown")
}
mspLogger.Debugf("Created new local MSP")
return mspInst
}
// GetIdentityDeserializer returns the IdentityDeserializer for the given chain
func GetIdentityDeserializer(chainID string) msp.IdentityDeserializer {
if chainID == "" {
return GetLocalMSP()
}
return GetManagerForChain(chainID)
}
// GetLocalSigningIdentityOrPanic returns the local signing identity or panic in case
// or error
func GetLocalSigningIdentityOrPanic() msp.SigningIdentity {
id, err := GetLocalMSP().GetDefaultSigningIdentity()
if err != nil {
mspLogger.Panicf("Failed getting local signing identity [%+v]", err)
}
return id
}