node

package
v0.0.0-...-b8899bb Latest Latest
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 Go to latest Published: May 29, 2017 License: MPL-2.0 Imports: 41 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// EventNodeStarted is triggered when underlying node is started
	EventNodeStarted = "node.started"

	// EventNodeReady is triggered when underlying node is fully ready
	// (consider backend to be fully registered)
	EventNodeReady = "node.ready"

	// EventNodeStopped is triggered when underlying node is fully stopped
	EventNodeStopped = "node.stopped"

	// EventNodeCrashed is triggered when node crashes
	EventNodeCrashed = "node.crashed"

	// EventChainDataRemoved is triggered when node's chain data is removed
	EventChainDataRemoved = "chaindata.removed"
)
View Source 
const (
	// EventTransactionQueued is triggered when send transaction request is queued
	EventTransactionQueued = "transaction.queued"

	// EventTransactionFailed is triggered when send transaction request fails
	EventTransactionFailed = "transaction.failed"

	// SendTxDefaultErrorCode is sent by default, when error is not nil, but type is unknown/unexpected.
	SendTxDefaultErrorCode = SendTransactionDefaultErrorCode
)
View Source 
const (
	SendTransactionNoErrorCode        = "0"
	SendTransactionDefaultErrorCode   = "1"
	SendTransactionPasswordErrorCode  = "2"
	SendTransactionTimeoutErrorCode   = "3"
	SendTransactionDiscardedErrorCode = "4"
)

Send transaction response codes

Variables

View Source 
var (
	ErrAddressToAccountMappingFailure  = errors.New("cannot retrieve a valid account for a given address")
	ErrAccountToKeyMappingFailure      = errors.New("cannot retrieve a valid key for a given account")
	ErrWhisperIdentityInjectionFailure = errors.New("failed to inject identity into Whisper")
	ErrWhisperClearIdentitiesFailure   = errors.New("failed to clear whisper identities")
	ErrNoAccountSelected               = errors.New("no account has been selected, please login")
	ErrInvalidMasterKeyCreated         = errors.New("can not create master extended key")
)

errors

View Source 
var (
	ErrNodeExists                  = errors.New("node is already running")
	ErrNoRunningNode               = errors.New("there is no running node")
	ErrInvalidNodeManager          = errors.New("node manager is not properly initialized")
	ErrInvalidWhisperService       = errors.New("whisper service is unavailable")
	ErrInvalidLightEthereumService = errors.New("LES service is unavailable")
	ErrInvalidAccountManager       = errors.New("could not retrieve account manager")
	ErrAccountKeyStoreMissing      = errors.New("account key store is not set")
	ErrInvalidRPCClient            = errors.New("RPC client is unavailable")
	ErrInvalidRPCServer            = errors.New("RPC server is unavailable")
)

errors

View Source 
var (
	ErrEthServiceRegistrationFailure     = errors.New("failed to register the Ethereum service")
	ErrWhisperServiceRegistrationFailure = errors.New("failed to register the Whisper service")
	ErrLightEthRegistrationFailure       = errors.New("failed to register the LES service")
	ErrNodeMakeFailure                   = errors.New("error creating p2p node")
	ErrNodeRunFailure                    = errors.New("error running p2p node")
	ErrNodeStartFailure                  = errors.New("error starting p2p node")
)

node-related errors

View Source 
var (
	ErrInvalidMethod       = errors.New("method does not exist")
	ErrRPCServerTimeout    = errors.New("RPC server cancelled call due to timeout")
	ErrRPCServerCallFailed = errors.New("RPC server cannot complete request")
)

errors

Functions

func HaltOnInterruptSignal 

func HaltOnInterruptSignal(nodeManager *NodeManager)

HaltOnInterruptSignal stops node and panics if you press Ctrl-C enough times

func HaltOnPanic 

func HaltOnPanic()

HaltOnPanic recovers from panic, logs issue, sends upward notification, and exits

func MakeNode 

func MakeNode(config *params.NodeConfig) (*node.Node, error)

MakeNode create a geth node entity

func NotifyNode 

func NotifyNode(jsonEvent *C.char)

func ResetDefaultNodeNotificationHandler 

func ResetDefaultNodeNotificationHandler()

ReetDefaultNodeNotificationHandler sets notification handler to default one

func SendSignal 

func SendSignal(signal SignalEnvelope)

SendSignal sends application signal (JSON, normally) upwards to application (via default notification handler)

func SetDefaultNodeNotificationHandler 

func SetDefaultNodeNotificationHandler(fn NodeNotificationHandler)

SetDefaultNodeNotificationHandler sets notification handler to invoke on SendSignal

func TriggerDefaultNodeNotificationHandler 

func TriggerDefaultNodeNotificationHandler(jsonEvent string)

TriggerDefaultNodeNotificationHandler triggers default notification handler (helpful in tests)

func TriggerTestSignal 

func TriggerTestSignal()

Types

type AccountManager 

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

AccountManager represents account manager interface

func NewAccountManager 

func NewAccountManager(nodeManager common.NodeManager) *AccountManager

NewAccountManager returns new node account manager

func (*AccountManager) AccountsListRequestHandler 

func (m *AccountManager) AccountsListRequestHandler() func(entities []gethcommon.Address) []gethcommon.Address

AccountsListRequestHandler returns handler to process account list request

func (*AccountManager) AddressToDecryptedAccount 

func (m *AccountManager) AddressToDecryptedAccount(address, password string) (accounts.Account, *keystore.Key, error)

AddressToDecryptedAccount tries to load decrypted key for a given account. The running node, has a keystore directory which is loaded on start. Key file for a given address is expected to be in that directory prior to node start.

func (*AccountManager) CreateAccount 

func (m *AccountManager) CreateAccount(password string) (address, pubKey, mnemonic string, err error)

CreateAccount creates an internal geth account BIP44-compatible keys are generated: CKD#1 is stored as account key, CKD#2 stored as sub-account root Public key of CKD#1 is returned, with CKD#2 securely encoded into account key file (to be used for sub-account derivations)

func (*AccountManager) CreateChildAccount 

func (m *AccountManager) CreateChildAccount(parentAddress, password string) (address, pubKey string, err error)

CreateChildAccount creates sub-account for an account identified by parent address. CKD#2 is used as root for master accounts (when parentAddress is ""). Otherwise (when parentAddress != ""), child is derived directly from parent.

func (*AccountManager) Logout 

func (m *AccountManager) Logout() error

Logout clears whisper identities

func (*AccountManager) ReSelectAccount 

func (m *AccountManager) ReSelectAccount() error

ReSelectAccount selects previously selected account, often, after node restart.

func (*AccountManager) RecoverAccount 

func (m *AccountManager) RecoverAccount(password, mnemonic string) (address, pubKey string, err error)

RecoverAccount re-creates master key using given details. Once master key is re-generated, it is inserted into keystore (if not already there).

func (*AccountManager) SelectAccount 

func (m *AccountManager) SelectAccount(address, password string) error

SelectAccount selects current account, by verifying that address has corresponding account which can be decrypted using provided password. Once verification is done, decrypted key is injected into Whisper (as a single identity, all previous identities are removed).

func (*AccountManager) SelectedAccount 

func (m *AccountManager) SelectedAccount() (*common.SelectedExtKey, error)

SelectedAccount returns currently selected account

func (*AccountManager) VerifyAccountPassword 

func (m *AccountManager) VerifyAccountPassword(keyStoreDir, address, password string) (*keystore.Key, error)

VerifyAccountPassword tries to decrypt a given account key file, with a provided password. If no error is returned, then account is considered verified.

type NodeCrashEvent 

type NodeCrashEvent struct {
	Error string `json:"error"`
}

NodeCrashEvent is special kind of error, used to report node crashes

type NodeManager 

type NodeManager struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

NodeManager manages Status node (which abstracts contained geth node)

func NewNodeManager 

func NewNodeManager() *NodeManager

NewNodeManager makes new instance of node manager

func (*NodeManager) AccountKeyStore 

func (m *NodeManager) AccountKeyStore() (*keystore.KeyStore, error)

AccountKeyStore exposes reference to accounts key store

func (*NodeManager) AccountManager 

func (m *NodeManager) AccountManager() (*accounts.Manager, error)

AccountManager exposes reference to node's accounts manager

func (*NodeManager) AddPeer 

func (m *NodeManager) AddPeer(url string) error

AddPeer adds new static peer node

func (*NodeManager) IsNodeRunning 

func (m *NodeManager) IsNodeRunning() bool

IsNodeRunning confirm that node is running

func (*NodeManager) LightEthereumService 

func (m *NodeManager) LightEthereumService() (*les.LightEthereum, error)

LightEthereumService exposes reference to LES service running on top of the node

func (*NodeManager) Node 

func (m *NodeManager) Node() (*node.Node, error)

Node returns underlying Status node

func (*NodeManager) NodeConfig 

func (m *NodeManager) NodeConfig() (*params.NodeConfig, error)

NodeConfig exposes reference to running node's configuration

func (*NodeManager) PopulateStaticPeers 

func (m *NodeManager) PopulateStaticPeers() error

PopulateStaticPeers connects current node with our publicly available LES/SHH/Swarm cluster

func (*NodeManager) RPCClient 

func (m *NodeManager) RPCClient() (*rpc.Client, error)

RPCClient exposes reference to RPC client connected to the running node

func (*NodeManager) RPCServer 

func (m *NodeManager) RPCServer() (*rpc.Server, error)

RPCServer exposes reference to running node's in-proc RPC server/handler

func (*NodeManager) ResetChainData 

func (m *NodeManager) ResetChainData() (<-chan struct{}, error)

ResetChainData remove chain data from data directory. Node is stopped, and new node is started, with clean data directory.

func (*NodeManager) RestartNode 

func (m *NodeManager) RestartNode() (<-chan struct{}, error)

RestartNode restart running Status node, fails if node is not running

func (*NodeManager) StartNode 

func (m *NodeManager) StartNode(config *params.NodeConfig) (<-chan struct{}, error)

StartNode start Status node, fails if node is already started

func (*NodeManager) StopNode 

func (m *NodeManager) StopNode() (<-chan struct{}, error)

StopNode stop Status node. Stopped node cannot be resumed.

func (*NodeManager) WhisperService 

func (m *NodeManager) WhisperService() (*whisper.Whisper, error)

WhisperService exposes reference to Whisper service running on top of the node

type NodeNotificationHandler 

type NodeNotificationHandler func(jsonEvent string)

NodeNotificationHandler defines a handler able to process incoming node events. Events are encoded as JSON strings.

type RPCManager 

type RPCManager struct {
	sync.Mutex
	// contains filtered or unexported fields
}

RPCManager abstract RPC management API (for both client and server)

func NewRPCManager 

func NewRPCManager(nodeManager common.NodeManager) *RPCManager

NewRPCManager returns new instance of RPC client

func (*RPCManager) Call 

func (c *RPCManager) Call(inputJSON string) string

Call executes RPC request on node's in-proc RPC server

type ReturnSendTransactionEvent 

type ReturnSendTransactionEvent struct {
	ID           string            `json:"id"`
	Args         status.SendTxArgs `json:"args"`
	MessageID    string            `json:"message_id"`
	ErrorMessage string            `json:"error_message"`
	ErrorCode    string            `json:"error_code"`
}

ReturnSendTransactionEvent is a JSON returned whenever transaction send is returned

type SendTransactionEvent 

type SendTransactionEvent struct {
	ID        string            `json:"id"`
	Args      status.SendTxArgs `json:"args"`
	MessageID string            `json:"message_id"`
}

SendTransactionEvent is a signal sent on a send transaction request

type SignalEnvelope 

type SignalEnvelope struct {
	Type  string      `json:"type"`
	Event interface{} `json:"event"`
}

SignalEnvelope is a general signal sent upward from node to RN app

type TxQueueManager 

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

TxQueueManager provides means to manage internal Status Backend (injected into LES)

func NewTxQueueManager 

func NewTxQueueManager(nodeManager common.NodeManager, accountManager common.AccountManager) *TxQueueManager

func (*TxQueueManager) CompleteTransaction 

func (m *TxQueueManager) CompleteTransaction(id, password string) (gethcommon.Hash, error)

CompleteTransaction instructs backend to complete sending of a given transaction

func (*TxQueueManager) CompleteTransactions 

func (m *TxQueueManager) CompleteTransactions(ids, password string) map[string]common.RawCompleteTransactionResult

CompleteTransactions instructs backend to complete sending of multiple transactions

func (*TxQueueManager) DiscardTransaction 

func (m *TxQueueManager) DiscardTransaction(id string) error

DiscardTransaction discards a given transaction from transaction queue

func (*TxQueueManager) DiscardTransactions 

func (m *TxQueueManager) DiscardTransactions(ids string) map[string]common.RawDiscardTransactionResult

DiscardTransactions discards given multiple transactions from transaction queue

func (*TxQueueManager) TransactionQueueHandler 

func (m *TxQueueManager) TransactionQueueHandler() func(queuedTx status.QueuedTx)

TransactionQueueHandler returns handler that processes incoming tx queue requests

func (*TxQueueManager) TransactionReturnHandler 

func (m *TxQueueManager) TransactionReturnHandler() func(queuedTx *status.QueuedTx, err error)

TransactionReturnHandler returns handler that processes responses from internal tx manager

Source Files

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