extension

package
v22.4.2 Latest Latest
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 Go to latest Published: Apr 28, 2022 License: GPL-3.0 Imports: 34 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewPrivateExtensionProxyAPI 

func NewPrivateExtensionProxyAPI(privacyService *PrivacyService) interface{}

func NewSubscriptionHandler 

func NewSubscriptionHandler(node *node.Node, psi types.PrivateStateIdentifier, ptm private.PrivateTransactionManager, service *PrivacyService) *subscriptionHandler

Types

type APIBackendHelper 

type APIBackendHelper interface {
	AccountExtraDataStateGetterByNumber(ctx context.Context, number rpc.BlockNumber) (vm.AccountExtraDataStateGetter, error)
	PSMR() mps.PrivateStateMetadataResolver
	CurrentBlock() *types.Block
	SupportsMultitenancy(rpcCtx context.Context) (*proto.PreAuthenticatedAuthenticationToken, bool)
	IsPrivacyMarkerTransactionCreationEnabled() bool
}

Only extract required methods from EthAPIBackend

type ChainAccessor 

type ChainAccessor interface {
	// GetBlockByHash retrieves a block from the local chain.
	GetBlockByHash(common.Hash) *types.Block
	StateAt(root common.Hash) (*state.StateDB, mps.PrivateStateRepository, error)
	StateAtPSI(root common.Hash, psi types.PrivateStateIdentifier) (*state.StateDB, *state.StateDB, error)
	State() (*state.StateDB, mps.PrivateStateRepository, error)
	CurrentBlock() *types.Block
}

ChainAccessor provides methods to fetch state and blocks from the local blockchain

type Client 

type Client interface {
	SubscribeToLogs(query ethereum.FilterQuery) (<-chan types.Log, ethereum.Subscription, error)
	NextNonce(from common.Address) (uint64, error)
	TransactionByHash(hash common.Hash) (*types.Transaction, error)
	TransactionInBlock(blockHash common.Hash, txIndex uint) (*types.Transaction, error)
	Close()
}

type DataHandler 

type DataHandler interface {
	Load() (map[types.PrivateStateIdentifier]map[common.Address]*ExtensionContract, error)

	Save(extensionContracts map[types.PrivateStateIdentifier]map[common.Address]*ExtensionContract) error
}

type DefaultServicesFactory 

type DefaultServicesFactory struct {
	// contains filtered or unexported fields
}

func NewServicesFactory 

func NewServicesFactory(stack *node.Node, ptm private.PrivateTransactionManager, ethService *eth.Ethereum) (*DefaultServicesFactory, error)

func (*DefaultServicesFactory) AccountManager 

func (factory *DefaultServicesFactory) AccountManager() *accounts.Manager

func (*DefaultServicesFactory) DataHandler 

func (factory *DefaultServicesFactory) DataHandler() DataHandler

func (*DefaultServicesFactory) StateFetcher 

func (factory *DefaultServicesFactory) StateFetcher() *StateFetcher

type EthclientManagementContractFacade 

type EthclientManagementContractFacade struct {
	// contains filtered or unexported fields
}

func (EthclientManagementContractFacade) Caller 

func (facade EthclientManagementContractFacade) Caller(managementAddress common.Address) (*extensionContracts.ContractExtenderCaller, error)

func (EthclientManagementContractFacade) Close 

func (facade EthclientManagementContractFacade) Close()

func (EthclientManagementContractFacade) Deploy 

func (facade EthclientManagementContractFacade) Deploy(args *bind.TransactOpts, toExtend common.Address, recipientAddress common.Address, recipientHash string) (*types.Transaction, error)

func (EthclientManagementContractFacade) GetAllVoters 

func (facade EthclientManagementContractFacade) GetAllVoters(addressToVoteOn common.Address) ([]common.Address, error)

func (EthclientManagementContractFacade) Transactor 

func (facade EthclientManagementContractFacade) Transactor(managementAddress common.Address) (*extensionContracts.ContractExtenderTransactor, error)

type ExtensionContract 

type ExtensionContract struct {
	ContractExtended          common.Address `json:"contractExtended"`
	Initiator                 common.Address `json:"initiator"`
	Recipient                 common.Address `json:"recipient"`
	ManagementContractAddress common.Address `json:"managementContractAddress"`
	RecipientPtmKey           string         `json:"recipientPtmKey"`
	CreationData              []byte         `json:"creationData"`
}

type InProcessClient 

type InProcessClient struct {
	// contains filtered or unexported fields
}

func NewInProcessClient 

func NewInProcessClient(client *ethclient.Client) *InProcessClient

func (*InProcessClient) Close 

func (client *InProcessClient) Close()

func (*InProcessClient) NextNonce 

func (client *InProcessClient) NextNonce(from common.Address) (uint64, error)

func (*InProcessClient) SubscribeToLogs 

func (client *InProcessClient) SubscribeToLogs(query ethereum.FilterQuery) (<-chan types.Log, ethereum.Subscription, error)

func (*InProcessClient) TransactionByHash 

func (client *InProcessClient) TransactionByHash(hash common.Hash) (*types.Transaction, error)

func (*InProcessClient) TransactionInBlock 

func (client *InProcessClient) TransactionInBlock(blockHash common.Hash, txIndex uint) (*types.Transaction, error)

type JsonFileDataHandler 

type JsonFileDataHandler struct {
	// contains filtered or unexported fields
}

func NewJsonFileDataHandler 

func NewJsonFileDataHandler(dataDirectory string) *JsonFileDataHandler

func (*JsonFileDataHandler) Load 

func (handler *JsonFileDataHandler) Load() (map[types.PrivateStateIdentifier]map[common.Address]*ExtensionContract, error)

The strategy when loading the save file is too check if the newer "psiContracts" field is present. If so, then everything should exist under that key, and so we can unmarshal and return immediately.

If not, then the save file was made from a previous version. Load up all the data as before and put it under the "private" PSI.

It should never be the case the file contains both types of data at once.

func (*JsonFileDataHandler) Save 

func (handler *JsonFileDataHandler) Save(extensionContracts map[types.PrivateStateIdentifier]map[common.Address]*ExtensionContract) error

type ManagementContractFacade 

type ManagementContractFacade interface {
	Transactor(managementAddress common.Address) (*extensionContracts.ContractExtenderTransactor, error)
	Caller(managementAddress common.Address) (*extensionContracts.ContractExtenderCaller, error)
	Deploy(args *bind.TransactOpts, toExtend common.Address, recipientAddress common.Address, recipientHash string) (*types.Transaction, error)

	GetAllVoters(addressToVoteOn common.Address) ([]common.Address, error)
	Close()
}

func NewManagementContractFacade 

func NewManagementContractFacade(client *ethclient.Client) ManagementContractFacade

type PrivacyService 

type PrivacyService struct {
	// contains filtered or unexported fields
}

func New 

func New(stack *node.Node, ptm private.PrivateTransactionManager, manager *accounts.Manager, handler DataHandler, fetcher *StateFetcher, apiBackendHelper APIBackendHelper, config *params.ChainConfig) (*PrivacyService, error)

func (*PrivacyService) CheckIfContractCreator 

func (service *PrivacyService) CheckIfContractCreator(blockHash common.Hash, address common.Address, psi types.PrivateStateIdentifier) bool

check if the node had created the contract

func (*PrivacyService) GenerateTransactOptions 

func (service *PrivacyService) GenerateTransactOptions(txa ethapi.SendTxArgs) (*bind.TransactOpts, error)

func (*PrivacyService) GetAllParticipants 

func (service *PrivacyService) GetAllParticipants(blockHash common.Hash, address common.Address, psi types.PrivateStateIdentifier) ([]string, error)

returns the participant list for a given private contract

func (*PrivacyService) Start 

func (service *PrivacyService) Start() error

func (*PrivacyService) Stop 

func (service *PrivacyService) Stop() error

type PrivateExtensionAPI 

type PrivateExtensionAPI struct {
	// contains filtered or unexported fields
}

func NewPrivateExtensionAPI 

func NewPrivateExtensionAPI(privacyService *PrivacyService) *PrivateExtensionAPI

func (*PrivateExtensionAPI) ActiveExtensionContracts 

func (api *PrivateExtensionAPI) ActiveExtensionContracts(ctx context.Context) []ExtensionContract

ActiveExtensionContracts returns the list of all currently outstanding extension contracts

func (*PrivateExtensionAPI) ApproveExtension 

func (api *PrivateExtensionAPI) ApproveExtension(ctx context.Context, addressToVoteOn common.Address, vote bool, txa ethapi.SendTxArgs) (string, error)

ApproveContractExtension submits the vote to the specified extension management contract. The vote indicates whether to extend a given contract to a new participant or not

func (*PrivateExtensionAPI) CancelExtension 

func (api *PrivateExtensionAPI) CancelExtension(ctx context.Context, extensionContract common.Address, txa ethapi.SendTxArgs) (string, error)

CancelExtension allows the creator to cancel the given extension contract, ensuring that no more calls for votes or accepting can be made

func (*PrivateExtensionAPI) ExtendContract 

func (api *PrivateExtensionAPI) ExtendContract(ctx context.Context, toExtend common.Address, newRecipientPtmPublicKey string, recipientAddr common.Address, txa ethapi.SendTxArgs) (string, error)

ExtendContract deploys a new extension management contract to the blockchain to start the process of extending a contract to a new participant Create a new extension contract that signifies that we want to add a new participant to an existing contract This should contain: - arguments for sending a new transaction (the same as sendTransaction) - the contract address we want to extend - the new PTM public key - the Ethereum addresses of who can vote to extend the contract

func (*PrivateExtensionAPI) GetExtensionStatus 

func (api *PrivateExtensionAPI) GetExtensionStatus(ctx context.Context, extensionContract common.Address) (string, error)

Returns the extension status from management contract

type PrivateExtensionProxyAPI 

type PrivateExtensionProxyAPI struct {
	PrivateExtensionAPI
	// contains filtered or unexported fields
}

func (*PrivateExtensionProxyAPI) ActiveExtensionContracts 

func (api *PrivateExtensionProxyAPI) ActiveExtensionContracts(ctx context.Context) []ExtensionContract

ActiveExtensionContracts returns the list of all currently outstanding extension contracts

func (*PrivateExtensionProxyAPI) ApproveExtension 

func (api *PrivateExtensionProxyAPI) ApproveExtension(ctx context.Context, addressToVoteOn common.Address, vote bool, txa ethapi.SendTxArgs) (string, error)

ApproveContractExtension submits the vote to the specified extension management contract. The vote indicates whether to extend a given contract to a new participant or not

func (*PrivateExtensionProxyAPI) CancelExtension 

func (api *PrivateExtensionProxyAPI) CancelExtension(ctx context.Context, extensionContract common.Address, txa ethapi.SendTxArgs) (string, error)

func (*PrivateExtensionProxyAPI) ExtendContract 

func (api *PrivateExtensionProxyAPI) ExtendContract(ctx context.Context, toExtend common.Address, newRecipientPtmPublicKey string, recipientAddr common.Address, txa ethapi.SendTxArgs) (string, error)

type ServicesFactory 

type ServicesFactory interface {
	AccountManager() *accounts.Manager
	DataHandler() DataHandler
	StateFetcher() *StateFetcher
}

type StateFetcher 

type StateFetcher struct {
	// contains filtered or unexported fields
}

StateFetcher manages retrieving state from the database and returning it in a usable form by the extension API.

func NewStateFetcher 

func NewStateFetcher(chainAccessor ChainAccessor) *StateFetcher

Creates a new StateFetcher from the ethereum service

func (*StateFetcher) GetAddressStateFromBlock 

func (fetcher *StateFetcher) GetAddressStateFromBlock(blockHash common.Hash, addressToFetch common.Address, psi types.PrivateStateIdentifier) ([]byte, error)

GetAddressStateFromBlock is a public method that combines the other functions of a StateFetcher, retrieving the state of an address at a given block, represented in JSON.

func (*StateFetcher) GetPrivacyMetaData 

func (fetcher *StateFetcher) GetPrivacyMetaData(blockHash common.Hash, address common.Address, psi types.PrivateStateIdentifier) (*state.PrivacyMetadata, error)

returns the privacy metadata

func (*StateFetcher) GetStorageRoot 

func (fetcher *StateFetcher) GetStorageRoot(blockHash common.Hash, address common.Address, psi types.PrivateStateIdentifier) (common.Hash, error)

returns the privacy metadata

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