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mspmgrimpl.go
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mspmgrimpl.go
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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
/*
Notice: This file has been modified for Hyperledger Fabric SDK Go usage.
Please review third_party pinning scripts and patches for more details.
*/
package msp
import (
"github.com/golang/protobuf/proto"
"github.com/hyperledger/fabric-protos-go/msp"
flogging "github.com/kfsoftware/hlf-operator/internal/github.com/hyperledger/fabric/sdkpatch/logbridge"
"github.com/pkg/errors"
)
var mspLogger = flogging.MustGetLogger("msp")
type mspManagerImpl struct {
// map that contains all MSPs that we have setup or otherwise added
mspsMap map[string]MSP
// map that maps MSPs by their provider types
mspsByProviders map[ProviderType][]MSP
// error that might have occurred at startup
up bool
}
// NewMSPManager returns a new MSP manager instance;
// note that this instance is not initialized until
// the Setup method is called
func NewMSPManager() MSPManager {
return &mspManagerImpl{}
}
// Setup initializes the internal data structures of this manager and creates MSPs
func (mgr *mspManagerImpl) Setup(msps []MSP) error {
if mgr.up {
mspLogger.Infof("MSP manager already up")
return nil
}
mspLogger.Debugf("Setting up the MSP manager (%d msps)", len(msps))
// create the map that assigns MSP IDs to their manager instance - once
mgr.mspsMap = make(map[string]MSP)
// create the map that sorts MSPs by their provider types
mgr.mspsByProviders = make(map[ProviderType][]MSP)
for _, msp := range msps {
// add the MSP to the map of active MSPs
mspID, err := msp.GetIdentifier()
if err != nil {
return errors.WithMessage(err, "could not extract msp identifier")
}
mgr.mspsMap[mspID] = msp
providerType := msp.GetType()
mgr.mspsByProviders[providerType] = append(mgr.mspsByProviders[providerType], msp)
}
mgr.up = true
mspLogger.Debugf("MSP manager setup complete, setup %d msps", len(msps))
return nil
}
// GetMSPs returns the MSPs that are managed by this manager
func (mgr *mspManagerImpl) GetMSPs() (map[string]MSP, error) {
return mgr.mspsMap, nil
}
// DeserializeIdentity returns an identity given its serialized version supplied as argument
func (mgr *mspManagerImpl) DeserializeIdentity(serializedID []byte) (Identity, error) {
// We first deserialize to a SerializedIdentity to get the MSP ID
sId := &msp.SerializedIdentity{}
err := proto.Unmarshal(serializedID, sId)
if err != nil {
return nil, errors.Wrap(err, "could not deserialize a SerializedIdentity")
}
// we can now attempt to obtain the MSP
msp := mgr.mspsMap[sId.Mspid]
if msp == nil {
return nil, errors.Errorf("MSP %s is not defined on channel", sId.Mspid)
}
switch t := msp.(type) {
case *bccspmsp:
return t.deserializeIdentityInternal(sId.IdBytes)
default:
return t.DeserializeIdentity(serializedID)
}
}
func (mgr *mspManagerImpl) IsWellFormed(identity *msp.SerializedIdentity) error {
// Iterate over all the MSPs by their providers, and find at least 1 MSP that can attest
// that this identity is well formed
for _, mspList := range mgr.mspsByProviders {
// We are guaranteed to have at least 1 MSP in each list from the initialization at Setup()
msp := mspList[0]
if err := msp.IsWellFormed(identity); err == nil {
return nil
}
}
return errors.New("no MSP provider recognizes the identity")
}