ccprovider

package
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 Go to latest Published: Nov 21, 2021 License: Apache-2.0 Imports: 23 Imported by: 0

Documentation

Overview

# Copyright State Street Corp. All Rights Reserved. # # SPDX-License-Identifier: Apache-2.0

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func ChaincodePackageExists 

func ChaincodePackageExists(ccname string, ccversion string) (bool, error)

ChaincodePackageExists returns whether the chaincode package exists in the file system

func ExtractFileEntries 

func ExtractFileEntries(tarBytes []byte, databaseType string) (map[string][]*TarFileEntry, error)

ExtractFileEntries extract file entries from the given `tarBytes`. A file entry is included in the returned results only if it is located in a directory under the indicated databaseType directory Example for chaincode indexes: "META-INF/statedb/couchdb/indexes/indexColorSortName.json" Example for collection scoped indexes: "META-INF/statedb/couchdb/collections/collectionMarbles/indexes/indexCollMarbles.json" An empty string will have the effect of returning all statedb metadata. This is useful in validating an archive in the future with multiple database types

func ExtractStatedbArtifactsForChaincode 

func ExtractStatedbArtifactsForChaincode(ccNameVersion string) (installed bool, statedbArtifactsTar []byte, err error)

ExtractStatedbArtifactsAsTarbytes extracts the statedb artifacts from the code package tar and create a statedb artifact tar. The state db artifacts are expected to contain state db specific artifacts such as index specification in the case of couchdb. This function is intended to be used during chaincode instantiate/upgrade so that statedb artifacts can be created.

func ExtractStatedbArtifactsFromCCPackage 

func ExtractStatedbArtifactsFromCCPackage(ccpackage CCPackage) (statedbArtifactsTar []byte, err error)

ExtractStatedbArtifactsFromCCPackage extracts the statedb artifacts from the code package tar and create a statedb artifact tar. The state db artifacts are expected to contain state db specific artifacts such as index specification in the case of couchdb. This function is called during chaincode instantiate/upgrade (from above), and from install, so that statedb artifacts can be created.

func GetChaincodePackageFromPath 

func GetChaincodePackageFromPath(ccNameVersion string, ccInstallPath string) ([]byte, error)

GetChaincodePackage returns the chaincode package from the file system

func GetInstalledChaincodes 

func GetInstalledChaincodes() (*pb.ChaincodeQueryResponse, error)

GetInstalledChaincodes returns a map whose key is the chaincode id and value is the ChaincodeDeploymentSpec struct for that chaincodes that have been installed (but not necessarily instantiated) on the peer by searching the chaincode install path

func MetadataAsTarEntries 

func MetadataAsTarEntries(code []byte) ([]byte, error)

MetadataAsTarEntries extracts metadata from a chaincode package

func NewCCInfoCache 

func NewCCInfoCache(cs CCCacheSupport) *ccInfoCacheImpl

NewCCInfoCache returns a new cache on top of the supplied CCInfoProvider instance

func SetChaincodesPath 

func SetChaincodesPath(path string)

SetChaincodesPath sets the chaincode path for this peer

Types

type CCCacheSupport 

type CCCacheSupport interface {
	// GetChaincode is needed by the cache to get chaincode data
	GetChaincode(ccNameVersion string) (CCPackage, error)
}

type CCInfoFSImpl 

type CCInfoFSImpl struct {
	GetHasher GetHasher
}

CCInfoFSImpl provides the implementation for CC on the FS and the access to it It implements CCCacheSupport

func (*CCInfoFSImpl) GetChaincode 

func (cifs *CCInfoFSImpl) GetChaincode(ccNameVersion string) (CCPackage, error)

GetChaincodeFromFS this is a wrapper for hiding package implementation. It calls GetChaincodeFromPath with the chaincodeInstallPath

func (*CCInfoFSImpl) GetChaincodeCodePackage 

func (cifs *CCInfoFSImpl) GetChaincodeCodePackage(ccNameVersion string) ([]byte, error)

func (*CCInfoFSImpl) GetChaincodeDepSpec 

func (cifs *CCInfoFSImpl) GetChaincodeDepSpec(ccNameVersion string) (*pb.ChaincodeDeploymentSpec, error)

func (*CCInfoFSImpl) GetChaincodeFromPath 

func (cifs *CCInfoFSImpl) GetChaincodeFromPath(ccNameVersion string, path string) (CCPackage, error)

GetChaincodeFromPath this is a wrapper for hiding package implementation.

func (*CCInfoFSImpl) GetChaincodeInstallPath 

func (*CCInfoFSImpl) GetChaincodeInstallPath() string

GetChaincodeInstallPath returns the path to the installed chaincodes

func (*CCInfoFSImpl) ListInstalledChaincodes 

func (cifs *CCInfoFSImpl) ListInstalledChaincodes(dir string, ls DirEnumerator, ccFromPath ChaincodeExtractor) ([]chaincode.InstalledChaincode, error)

ListInstalledChaincodes retrieves the installed chaincodes

func (*CCInfoFSImpl) PutChaincode 

func (cifs *CCInfoFSImpl) PutChaincode(depSpec *pb.ChaincodeDeploymentSpec) (CCPackage, error)

PutChaincode is a wrapper for putting raw ChaincodeDeploymentSpec using CDSPackage. This is only used in UTs

type CCPackage 

type CCPackage interface {
	//InitFromBuffer initialize the package from bytes
	InitFromBuffer(buf []byte) (*ChaincodeData, error)

	// PutChaincodeToFS writes the chaincode to the filesystem
	PutChaincodeToFS() error

	// GetDepSpec gets the ChaincodeDeploymentSpec from the package
	GetDepSpec() *pb.ChaincodeDeploymentSpec

	// GetDepSpecBytes gets the serialized ChaincodeDeploymentSpec from the package
	GetDepSpecBytes() []byte

	// ValidateCC validates and returns the chaincode deployment spec corresponding to
	// ChaincodeData. The validation is based on the metadata from ChaincodeData
	// One use of this method is to validate the chaincode before launching
	ValidateCC(ccdata *ChaincodeData) error

	// GetPackageObject gets the object as a proto.Message
	GetPackageObject() proto.Message

	// GetChaincodeData gets the ChaincodeData
	GetChaincodeData() *ChaincodeData

	// GetId gets the fingerprint of the chaincode based on package computation
	GetId() []byte
}

CCPackage encapsulates a chaincode package which can be 

raw ChaincodeDeploymentSpec
SignedChaincodeDeploymentSpec

Attempt to keep the interface at a level with minimal interface for possible generalization.

func GetCCPackage 

func GetCCPackage(buf []byte, bccsp bccsp.BCCSP) (CCPackage, error)

GetCCPackage tries each known package implementation one by one till the right package is found

func GetChaincodeFromFS 

func GetChaincodeFromFS(ccNameVersion string) (CCPackage, error)

GetChaincodeFromFS retrieves chaincode information from the file system

func LoadPackage 

func LoadPackage(ccNameVersion string, path string, getHasher GetHasher) (CCPackage, error)

LoadPackage loads a chaincode package from the file system

type CDSData 

type CDSData struct {
	//CodeHash hash of CodePackage from ChaincodeDeploymentSpec
	CodeHash []byte `protobuf:"bytes,1,opt,name=codehash,proto3"`

	//MetaDataHash hash of Name and Version from ChaincodeDeploymentSpec
	MetaDataHash []byte `protobuf:"bytes,2,opt,name=metadatahash,proto3"`
}

CDSData is data stored in the LSCC on instantiation of a CC for CDSPackage. This needs to be serialized for ChaincodeData hence the protobuf format

func (*CDSData) Equals 

func (data *CDSData) Equals(other *CDSData) bool

Equals data equals other

func (*CDSData) ProtoMessage 

func (*CDSData) ProtoMessage()

ProtoMessage just exists to make proto happy

func (*CDSData) Reset 

func (data *CDSData) Reset()

Reset resets

func (*CDSData) String 

func (data *CDSData) String() string

String converts to string

type CDSPackage 

type CDSPackage struct {
	GetHasher GetHasher
	// contains filtered or unexported fields
}

CDSPackage encapsulates ChaincodeDeploymentSpec.

func (*CDSPackage) GetChaincodeData 

func (ccpack *CDSPackage) GetChaincodeData() *ChaincodeData

GetChaincodeData gets the ChaincodeData

func (*CDSPackage) GetDepSpec 

func (ccpack *CDSPackage) GetDepSpec() *pb.ChaincodeDeploymentSpec

GetDepSpec gets the ChaincodeDeploymentSpec from the package

func (*CDSPackage) GetDepSpecBytes 

func (ccpack *CDSPackage) GetDepSpecBytes() []byte

GetDepSpecBytes gets the serialized ChaincodeDeploymentSpec from the package

func (*CDSPackage) GetId 

func (ccpack *CDSPackage) GetId() []byte

GetId gets the fingerprint of the chaincode based on package computation

func (*CDSPackage) GetPackageObject 

func (ccpack *CDSPackage) GetPackageObject() proto.Message

GetPackageObject gets the ChaincodeDeploymentSpec as proto.Message

func (*CDSPackage) InitFromBuffer 

func (ccpack *CDSPackage) InitFromBuffer(buf []byte) (*ChaincodeData, error)

InitFromBuffer sets the buffer if valid and returns ChaincodeData

func (*CDSPackage) InitFromFS 

func (ccpack *CDSPackage) InitFromFS(ccNameVersion string) ([]byte, *pb.ChaincodeDeploymentSpec, error)

InitFromFS returns the chaincode and its package from the file system

func (*CDSPackage) InitFromPath 

func (ccpack *CDSPackage) InitFromPath(ccNameVersion string, path string) ([]byte, *pb.ChaincodeDeploymentSpec, error)

InitFromFS returns the chaincode and its package from the file system

func (*CDSPackage) PutChaincodeToFS 

func (ccpack *CDSPackage) PutChaincodeToFS() error

PutChaincodeToFS - serializes chaincode to a package on the file system

func (*CDSPackage) ValidateCC 

func (ccpack *CDSPackage) ValidateCC(ccdata *ChaincodeData) error

ValidateCC returns error if the chaincode is not found or if its not a ChaincodeDeploymentSpec

type ChaincodeData 

type ChaincodeData struct {
	// Name of the chaincode
	Name string `protobuf:"bytes,1,opt,name=name"`

	// Version of the chaincode
	Version string `protobuf:"bytes,2,opt,name=version"`

	// Escc for the chaincode instance
	Escc string `protobuf:"bytes,3,opt,name=escc"`

	// Vscc for the chaincode instance
	Vscc string `protobuf:"bytes,4,opt,name=vscc"`

	// Policy endorsement policy for the chaincode instance
	Policy []byte `protobuf:"bytes,5,opt,name=policy,proto3"`

	// Data data specific to the package
	Data []byte `protobuf:"bytes,6,opt,name=data,proto3"`

	// Id of the chaincode that's the unique fingerprint for the CC This is not
	// currently used anywhere but serves as a good eyecatcher
	Id []byte `protobuf:"bytes,7,opt,name=id,proto3"`

	// InstantiationPolicy for the chaincode
	InstantiationPolicy []byte `protobuf:"bytes,8,opt,name=instantiation_policy,proto3"`
}

ChaincodeData defines the datastructure for chaincodes to be serialized by proto Type provides an additional check by directing to use a specific package after instantiation Data is Type specific (see CDSPackage and SignedCDSPackage)

func GetChaincodeData 

func GetChaincodeData(ccNameVersion string) (*ChaincodeData, error)

GetChaincodeData gets chaincode data from cache if there's one

func (*ChaincodeData) ChaincodeID 

func (cd *ChaincodeData) ChaincodeID() string

ChaincodeID is the name by which the chaincode will register itself.

func (*ChaincodeData) ProtoMessage 

func (*ChaincodeData) ProtoMessage()

ProtoMessage just exists to make proto happy

func (*ChaincodeData) Reset 

func (cd *ChaincodeData) Reset()

Reset resets

func (*ChaincodeData) String 

func (cd *ChaincodeData) String() string

String converts to string

type ChaincodeExtractor 

type ChaincodeExtractor func(ccNameVersion string, path string, getHasher GetHasher) (CCPackage, error)

ChaincodeExtractor extracts chaincode from a given path

type DirEnumerator 

type DirEnumerator func(string) ([]os.FileInfo, error)

DirEnumerator enumerates directories

type GetHasher 

type GetHasher interface {
	GetHash(opts bccsp.HashOpts) (h hash.Hash, err error)
}

GetHasher interface defines a subset of bccsp which contains GetHash function.

type PersistenceAdapter 

type PersistenceAdapter func([]byte) ([]byte, error)

func (PersistenceAdapter) GetDBArtifacts 

func (pa PersistenceAdapter) GetDBArtifacts(codePackage []byte) ([]byte, error)

type SignedCDSData 

type SignedCDSData struct {
	CodeHash      []byte `protobuf:"bytes,1,opt,name=hash"`
	MetaDataHash  []byte `protobuf:"bytes,2,opt,name=metadatahash"`
	SignatureHash []byte `protobuf:"bytes,3,opt,name=signaturehash"`
}

SignedCDSData is data stored in the LSCC on instantiation of a CC for SignedCDSPackage. This needs to be serialized for ChaincodeData hence the protobuf format

func (*SignedCDSData) Equals 

func (data *SignedCDSData) Equals(other *SignedCDSData) bool

Equals data equals other

func (*SignedCDSData) ProtoMessage 

func (*SignedCDSData) ProtoMessage()

ProtoMessage just exists to make proto happy

func (*SignedCDSData) Reset 

func (data *SignedCDSData) Reset()

Reset resets

func (*SignedCDSData) String 

func (data *SignedCDSData) String() string

String converts to string

type SignedCDSPackage 

type SignedCDSPackage struct {
	GetHasher GetHasher
	// contains filtered or unexported fields
}

SignedCDSPackage encapsulates SignedChaincodeDeploymentSpec.

func (*SignedCDSPackage) GetChaincodeData 

func (ccpack *SignedCDSPackage) GetChaincodeData() *ChaincodeData

GetChaincodeData gets the ChaincodeData

func (*SignedCDSPackage) GetDepSpec 

func (ccpack *SignedCDSPackage) GetDepSpec() *pb.ChaincodeDeploymentSpec

GetDepSpec gets the ChaincodeDeploymentSpec from the package

func (*SignedCDSPackage) GetDepSpecBytes 

func (ccpack *SignedCDSPackage) GetDepSpecBytes() []byte

GetDepSpecBytes gets the serialized ChaincodeDeploymentSpec from the package

func (*SignedCDSPackage) GetId 

func (ccpack *SignedCDSPackage) GetId() []byte

GetId gets the fingerprint of the chaincode based on package computation

func (*SignedCDSPackage) GetInstantiationPolicy 

func (ccpack *SignedCDSPackage) GetInstantiationPolicy() []byte

GetInstantiationPolicy gets the instantiation policy from the package

func (*SignedCDSPackage) GetPackageObject 

func (ccpack *SignedCDSPackage) GetPackageObject() proto.Message

GetPackageObject gets the ChaincodeDeploymentSpec as proto.Message

func (*SignedCDSPackage) InitFromBuffer 

func (ccpack *SignedCDSPackage) InitFromBuffer(buf []byte) (*ChaincodeData, error)

InitFromBuffer sets the buffer if valid and returns ChaincodeData

func (*SignedCDSPackage) InitFromFS 

func (ccpack *SignedCDSPackage) InitFromFS(ccNameVersion string) ([]byte, *pb.ChaincodeDeploymentSpec, error)

InitFromFS returns the chaincode and its package from the file system

func (*SignedCDSPackage) InitFromPath 

func (ccpack *SignedCDSPackage) InitFromPath(ccNameVersion string, path string) ([]byte, *pb.ChaincodeDeploymentSpec, error)

InitFromPath returns the chaincode and its package from the file system

func (*SignedCDSPackage) PutChaincodeToFS 

func (ccpack *SignedCDSPackage) PutChaincodeToFS() error

PutChaincodeToFS - serializes chaincode to a package on the file system

func (*SignedCDSPackage) ValidateCC 

func (ccpack *SignedCDSPackage) ValidateCC(ccdata *ChaincodeData) error

ValidateCC returns error if the chaincode is not found or if its not a ChaincodeDeploymentSpec

type TarFileEntry 

type TarFileEntry struct {
	FileHeader  *tar.Header
	FileContent []byte
}

tarFileEntry encapsulates a file entry and it's contents inside a tar

type TransactionParams 

type TransactionParams struct {
	TxID                 string
	ChannelID            string
	NamespaceID          string
	SignedProp           *pb.SignedProposal
	Proposal             *pb.Proposal
	TXSimulator          ledger.TxSimulator
	HistoryQueryExecutor ledger.HistoryQueryExecutor
	CollectionStore      privdata.CollectionStore
	IsInitTransaction    bool

	// this is additional data passed to the chaincode
	ProposalDecorations map[string][]byte
}

TransactionParams are parameters which are tied to a particular transaction and which are required for invoking chaincode.

Source Files

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