/* Copyright IBM Corp. 2017 All Rights Reserved. SPDX-License-Identifier: Apache-2.0 */ package multichannel import ( "github.com/hyperledger/fabric-protos-go/common" "github.com/hyperledger/fabric/bccsp" "github.com/hyperledger/fabric/common/channelconfig" "github.com/hyperledger/fabric/common/ledger/blockledger" "github.com/hyperledger/fabric/protoutil" "github.com/pkg/errors" ) // checkResources makes sure that the channel config is compatible with this binary and logs sanity checks func checkResources(res channelconfig.Resources) error { channelconfig.LogSanityChecks(res) oc, ok := res.OrdererConfig() if !ok { return errors.New("config does not contain orderer config") } if err := oc.Capabilities().Supported(); err != nil { return errors.WithMessagef(err, "config requires unsupported orderer capabilities: %s", err) } if err := res.ChannelConfig().Capabilities().Supported(); err != nil { return errors.WithMessagef(err, "config requires unsupported channel capabilities: %s", err) } return nil } // checkResourcesOrPanic invokes checkResources and panics if an error is returned func checkResourcesOrPanic(res channelconfig.Resources) { if err := checkResources(res); err != nil { logger.Panicf("[channel %s] %s", res.ConfigtxValidator().ChannelID(), err) } } type mutableResources interface { channelconfig.Resources Update(*channelconfig.Bundle) } type configResources struct { mutableResources bccsp bccsp.BCCSP } func (cr *configResources) CreateBundle(channelID string, config *common.Config) (*channelconfig.Bundle, error) { return channelconfig.NewBundle(channelID, config, cr.bccsp) } func (cr *configResources) Update(bndl *channelconfig.Bundle) { checkResourcesOrPanic(bndl) cr.mutableResources.Update(bndl) } func (cr *configResources) SharedConfig() channelconfig.Orderer { oc, ok := cr.OrdererConfig() if !ok { logger.Panicf("[channel %s] has no orderer configuration", cr.ConfigtxValidator().ChannelID()) } return oc } type ledgerResources struct { *configResources blockledger.ReadWriter signatureVerifier protoutil.BlockVerifierFunc } // ChannelID passes through to the underlying configtx.Validator func (lr *ledgerResources) ChannelID() string { return lr.ConfigtxValidator().ChannelID() } // SignatureVerifier verifies a signature of a block. func (lr *ledgerResources) SignatureVerifier() protoutil.BlockVerifierFunc { return lr.signatureVerifier } // Block returns a block with the following number, or nil if such a block doesn't exist. func (lr *ledgerResources) Block(number uint64) *common.Block { if lr.Height() <= number { return nil } return blockledger.GetBlock(lr, number) }