interactor

package
v0.73.0-preview.5 Latest Latest
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 Go to latest Published: Sep 20, 2023 License: MIT Imports: 7 Imported by: 1

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var ErrTooManyRequests = errors.New("there are too many requests")

Functions

func InvalidResponsePayloadError 

func InvalidResponsePayloadError(name InteractionName) error

func TraceIDMismatchError 

func TraceIDMismatchError(expected, got string) error

func WrongResponseTypeError 

func WrongResponseTypeError(expected, got InteractionName) error

Types

type CancelRequest added in v0.59.0 

type CancelRequest struct{}

CancelRequest cancels a request that is waiting for user inputs. It can't cancel a request when there is no response awaited.

type Decision 

type Decision struct {
	// Approved is set to true if the request is accepted by the user, false
	// otherwise.
	Approved bool `json:"approved"`
}

Decision is a generic response for the following review requests:

  • RequestPermissionsReview
  • RequestTransactionReviewForSigning
  • RequestTransactionReviewForSending

type EnteredPassphrase 

type EnteredPassphrase struct {
	Passphrase string `json:"passphrase"`
}

EnteredPassphrase contains the passphrase of a given wallet the user entered. It's a response to the interactor.RequestPassphrase.

type ErrorOccurred 

type ErrorOccurred struct {
	// Type is an enumeration that gives information about the origin of the error.
	// The value is the string representation of an api.ErrorType.
	Type string `json:"type"`

	// Error is the error message describing the reason of the failure.
	Error string `json:"error"`
}

ErrorOccurred is a generic notification emitted when the something failed. This notification can wrap an internal failure as much as a user input error. Receiving this notification doesn't necessarily mean the overall request failed. The request should be considered as failed when this notification is followed by the interactor.InteractionSessionEnded notification.

type Interaction 

type Interaction struct {
	// TraceID is an identifier specifically made for client front-end to keep
	// track of a transaction during all of its lifetime, from transaction
	// review to sending confirmation and in-memory history.
	// It shouldn't be confused with the transaction hash that is the
	// transaction identifier.
	TraceID string `json:"traceID"`

	// Name is the name of the interaction. This helps to figure out how the
	// data payload should be parsed.
	Name InteractionName `json:"name"`

	// Data is the generic field that hold the data of the specific interaction.
	Data interface{} `json:"data"`
}

Interaction wraps the messages the JSON-RPC API sends to the wallet front-end along with information about the context.

func (*Interaction) UnmarshalJSON 

func (f *Interaction) UnmarshalJSON(data []byte) error

type InteractionName 

type InteractionName string
const (
	CancelRequestName                       InteractionName = "CANCEL_REQUEST"
	DecisionName                            InteractionName = "DECISION"
	EnteredPassphraseName                   InteractionName = "ENTERED_PASSPHRASE"
	ErrorOccurredName                       InteractionName = "ERROR_OCCURRED"
	InteractionSessionBeganName             InteractionName = "INTERACTION_SESSION_BEGAN"
	InteractionSessionEndedName             InteractionName = "INTERACTION_SESSION_ENDED"
	LogName                                 InteractionName = "LOG"
	RequestPassphraseName                   InteractionName = "REQUEST_PASSPHRASE"
	RequestPermissionsReviewName            InteractionName = "REQUEST_PERMISSIONS_REVIEW"
	RequestSucceededName                    InteractionName = "REQUEST_SUCCEEDED"
	RequestTransactionReviewForSendingName  InteractionName = "REQUEST_TRANSACTION_REVIEW_FOR_SENDING"
	RequestTransactionReviewForSigningName  InteractionName = "REQUEST_TRANSACTION_REVIEW_FOR_SIGNING"
	RequestTransactionReviewForCheckingName InteractionName = "REQUEST_TRANSACTION_REVIEW_FOR_CHECKING"
	RequestWalletConnectionReviewName       InteractionName = "REQUEST_WALLET_CONNECTION_REVIEW"
	RequestWalletSelectionName              InteractionName = "REQUEST_WALLET_SELECTION"
	SelectedWalletName                      InteractionName = "SELECTED_WALLET"
	TransactionFailedName                   InteractionName = "TRANSACTION_FAILED"
	TransactionSucceededName                InteractionName = "TRANSACTION_SUCCEEDED"
	WalletConnectionDecisionName            InteractionName = "WALLET_CONNECTION_DECISION"
)

type InteractionSessionBegan 

type InteractionSessionBegan struct {
	Workflow             string `json:"workflow"`
	MaximumNumberOfSteps uint8  `json:"maximumNumberOfSteps"`
}

InteractionSessionBegan is a notification that is emitted when the interaction session begin. It only carries informational value on a request lifecycle. This is the first notification to be emitted and is always emitted when a request comes in.

type InteractionSessionEnded 

type InteractionSessionEnded struct{}

InteractionSessionEnded is a notification that is emitted when the interaction session ended. This is the last notification to be emitted and is always emitted, regardless of the request status. It only carries informational value on a request lifecycle. The success or failure status of a request is carried by the interactor.RequestSucceeded and interactor.ErrorOccurred notifications, respectively. Nothing should be expected after receiving this notification.

type Log 

type Log struct {
	// Type is an enumeration that gives information about the level of log.
	// The value is the string representation of an api.LogType.
	Type string `json:"type"`

	// Message is the log message itself.
	Message string `json:"message"`
}

Log is a generic event that shouldn't be confused with a notification. A log is conceptually different. Whatever the type (error, warning...), a log is just an information about the internal processing that we think is worth to broadcast to wallet front-ends. That said, it can be safely ignored if not needed. That is where is differs from the notifications.

type ParallelInteractor 

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

ParallelInteractor is built to handle multiple requests at a time.

func NewParallelInteractor 

func NewParallelInteractor(userCtx context.Context, outboundCh chan<- Interaction) *ParallelInteractor

func (*ParallelInteractor) Log 

func (i *ParallelInteractor) Log(ctx context.Context, traceID string, t api.LogType, msg string)

func (*ParallelInteractor) NotifyError 

func (i *ParallelInteractor) NotifyError(ctx context.Context, traceID string, t api.ErrorType, err error)

func (*ParallelInteractor) NotifyFailedTransaction 

func (i *ParallelInteractor) NotifyFailedTransaction(ctx context.Context, traceID string, stepNumber uint8, deserializedInputData, tx string, err error, sentAt time.Time, host string)

func (*ParallelInteractor) NotifyInteractionSessionBegan 

func (i *ParallelInteractor) NotifyInteractionSessionBegan(_ context.Context, traceID string, workflow api.WorkflowType, numberOfSteps uint8) error

func (*ParallelInteractor) NotifyInteractionSessionEnded 

func (i *ParallelInteractor) NotifyInteractionSessionEnded(_ context.Context, traceID string)

func (*ParallelInteractor) NotifySuccessfulRequest 

func (i *ParallelInteractor) NotifySuccessfulRequest(ctx context.Context, traceID string, stepNumber uint8, message string)

func (*ParallelInteractor) NotifySuccessfulTransaction 

func (i *ParallelInteractor) NotifySuccessfulTransaction(ctx context.Context, traceID string, stepNumber uint8, txHash, deserializedInputData, tx string, sentAt time.Time, host string)

func (*ParallelInteractor) RequestPassphrase 

func (i *ParallelInteractor) RequestPassphrase(ctx context.Context, traceID string, stepNumber uint8, wallet, reason string) (string, error)

func (*ParallelInteractor) RequestPermissionsReview 

func (i *ParallelInteractor) RequestPermissionsReview(ctx context.Context, traceID string, stepNumber uint8, hostname, wallet string, perms map[string]string) (bool, error)

func (*ParallelInteractor) RequestTransactionReviewForChecking added in v0.72.0 

func (i *ParallelInteractor) RequestTransactionReviewForChecking(ctx context.Context, traceID string, stepNumber uint8, hostname, wallet, pubKey, transaction string, receivedAt time.Time) (bool, error)

func (*ParallelInteractor) RequestTransactionReviewForSending 

func (i *ParallelInteractor) RequestTransactionReviewForSending(ctx context.Context, traceID string, stepNumber uint8, hostname, wallet, pubKey, transaction string, receivedAt time.Time) (bool, error)

func (*ParallelInteractor) RequestTransactionReviewForSigning 

func (i *ParallelInteractor) RequestTransactionReviewForSigning(ctx context.Context, traceID string, stepNumber uint8, hostname, wallet, pubKey, transaction string, receivedAt time.Time) (bool, error)

func (*ParallelInteractor) RequestWalletConnectionReview 

func (i *ParallelInteractor) RequestWalletConnectionReview(ctx context.Context, traceID string, stepNumber uint8, hostname string) (string, error)

func (*ParallelInteractor) RequestWalletSelection 

func (i *ParallelInteractor) RequestWalletSelection(ctx context.Context, traceID string, stepNumber uint8, hostname string, availableWallets []string) (string, error)

type RequestPassphrase 

type RequestPassphrase struct {
	Wallet string `json:"wallet"`
	Reason string `json:"reason"`

	StepNumber uint8 `json:"stepNumber"`

	// ResponseCh is the channel in which the response to that request is expected.
	ResponseCh chan<- Interaction `json:"-"`

	// ControlCh is the channel we use to communicate state of the request to
	// the UI. If the request gets canceled on the third-party application side,
	// we close this channel and the UI, that is listening to it, has to react
	// accordingly.
	ControlCh chan error `json:"-"`
}

RequestPassphrase is a request emitted when the service wants to confirm the user has access to the wallet. It should be answered by an interactor.EnteredPassphrase response.

type RequestPermissionsReview 

type RequestPermissionsReview struct {
	Hostname    string            `json:"hostname"`
	Wallet      string            `json:"wallet"`
	Permissions map[string]string `json:"permissions"`

	StepNumber uint8 `json:"stepNumber"`

	// ResponseCh is the channel in which the response to that request is expected.
	ResponseCh chan<- Interaction `json:"-"`

	// ControlCh is the channel we use to communicate state of the request to
	// the UI. If the request gets canceled on the third-party application side,
	// we close this channel and the UI, that is listening to it, has to react
	// accordingly.
	ControlCh chan error `json:"-"`
}

RequestPermissionsReview is a review request emitted when a third-party application performs an operation that requires an update to the permissions.

type RequestSucceeded 

type RequestSucceeded struct {
	// Message can contain a custom success message.
	Message string `json:"message"`

	StepNumber uint8 `json:"stepNumber"`
}

RequestSucceeded is a generic notification emitted when the request succeeded, meaning no error has been encountered. This notification is emitted only once.

type RequestTransactionReviewForChecking added in v0.69.0 

type RequestTransactionReviewForChecking struct {
	Hostname    string    `json:"hostname"`
	Wallet      string    `json:"wallet"`
	PublicKey   string    `json:"publicKey"`
	Transaction string    `json:"transaction"`
	ReceivedAt  time.Time `json:"receivedAt"`

	StepNumber uint8 `json:"stepNumber"`

	// ResponseCh is the channel in which the response to that request is expected.
	ResponseCh chan<- Interaction `json:"-"`

	// ControlCh is the channel we use to communicate state of the request to
	// the UI. If the request gets canceled on the third-party application side,
	// we close this channel and the UI, that is listening to it, has to react
	// accordingly.
	ControlCh chan error `json:"-"`
}

RequestTransactionReviewForChecking is a review request when a third-party application wants the user to check a transaction.

type RequestTransactionReviewForSending 

type RequestTransactionReviewForSending struct {
	Hostname    string    `json:"hostname"`
	Wallet      string    `json:"wallet"`
	PublicKey   string    `json:"publicKey"`
	Transaction string    `json:"transaction"`
	ReceivedAt  time.Time `json:"receivedAt"`

	StepNumber uint8 `json:"stepNumber"`

	// ResponseCh is the channel in which the response to that request is expected.
	ResponseCh chan<- Interaction `json:"-"`

	// ControlCh is the channel we use to communicate state of the request to
	// the UI. If the request gets canceled on the third-party application side,
	// we close this channel and the UI, that is listening to it, has to react
	// accordingly.
	ControlCh chan error `json:"-"`
}

RequestTransactionReviewForSending is a review request emitted when a third-party application wants to send a transaction.

type RequestTransactionReviewForSigning 

type RequestTransactionReviewForSigning struct {
	Hostname    string    `json:"hostname"`
	Wallet      string    `json:"wallet"`
	PublicKey   string    `json:"publicKey"`
	Transaction string    `json:"transaction"`
	ReceivedAt  time.Time `json:"receivedAt"`

	StepNumber uint8 `json:"stepNumber"`

	// ResponseCh is the channel in which the response to that request is expected.
	ResponseCh chan<- Interaction `json:"-"`

	// ControlCh is the channel we use to communicate state of the request to
	// the UI. If the request gets canceled on the third-party application side,
	// we close this channel and the UI, that is listening to it, has to react
	// accordingly.
	ControlCh chan error `json:"-"`
}

RequestTransactionReviewForSigning is a review request when a third-party application wants to sign a transaction.

type RequestWalletConnectionReview 

type RequestWalletConnectionReview struct {
	Hostname string `json:"hostname"`

	StepNumber uint8 `json:"stepNumber"`

	// ResponseCh is the channel in which the response to that request is expected.
	ResponseCh chan<- Interaction `json:"-"`

	// ControlCh is the channel we use to communicate state of the request to
	// the UI. If the request gets canceled on the third-party application side,
	// we close this channel and the UI, that is listening to it, has to react
	// accordingly.
	ControlCh <-chan error `json:"-"`
}

RequestWalletConnectionReview is a request emitted when a third-party application wants to connect to a wallet.

type RequestWalletSelection 

type RequestWalletSelection struct {
	Hostname         string   `json:"hostname"`
	AvailableWallets []string `json:"availableWallets"`

	StepNumber uint8 `json:"stepNumber"`

	// ResponseCh is the channel in which the response to that request is expected.
	ResponseCh chan<- Interaction `json:"-"`

	// ControlCh is the channel we use to communicate state of the request to
	// the UI. If the request gets canceled on the third-party application side,
	// we close this channel and the UI, that is listening to it, has to react
	// accordingly.
	ControlCh chan error `json:"-"`
}

RequestWalletSelection is a request emitted when the service requires the user to select a wallet. It is emitted after the user approved the wallet connection from a third-party application. It should be answered by an interactor.SelectedWallet response.

type SelectedNode added in v0.68.0 

type SelectedNode struct {
	Host string `json:"host"`
}

type SelectedWallet 

type SelectedWallet struct {
	Wallet string `json:"wallet"`
}

SelectedWallet contains the wallet chosen by the user for a given action.

type TransactionFailed 

type TransactionFailed struct {
	// DeserializedInputData is the input data bundled in the transaction in a
	// human-readable format.
	DeserializedInputData string `json:"deserializedInputData"`

	// Tx is the true representation of the transaction that is sent to the
	// network.
	Tx string `json:"tx"`

	// Error is the error message describing the reason of the failure.
	Error error `json:"error"`

	// SentAt is the time a which the transaction has been sent to the network.
	// It's useful to build a list of the sending in a chronological order on
	// the front-ends.
	SentAt time.Time `json:"sentAt"`

	// Node contains all the information related to the node selected for the
	// sending of the transaction.
	Node SelectedNode `json:"node"`

	StepNumber uint8 `json:"stepNumber"`
}

TransactionFailed is a notification sent when the sending of a transaction failed for any reason. It replaces the ErrorOccurred notification as it carries specific information that wallet front-ends may use for investigation. This notification is emitted only once.

type TransactionSucceeded 

type TransactionSucceeded struct {
	// TxHash is the hash of the transaction that is used to uniquely identify
	// a transaction. It can be used to retrieve a transaction in the explorer.
	TxHash string `json:"txHash"`

	// DeserializedInputData is the input data bundled in the transaction in a
	// human-readable format.
	DeserializedInputData string `json:"deserializedInputData"`

	// Tx is the true representation of the transaction that is sent to the
	// network.
	Tx string `json:"tx"`

	// SentAt is the time a which the transaction has been sent to the network.
	// It's useful to build a list of the sending in a chronological order on
	// the front-ends.
	SentAt time.Time `json:"sentAt"`

	// Node contains all the information related to the node selected for the
	// sending of the transaction.
	Node SelectedNode `json:"node"`

	StepNumber uint8 `json:"stepNumber"`
}

TransactionSucceeded is a notification sent when the sending of a transaction succeeded. It replaces the RequestSucceeded notification as it carries specific information that wallet front-ends may use for history. This notification is emitted only once.

type WalletConnectionDecision 

type WalletConnectionDecision struct {
	// ConnectionApproval tells if the third-party application is authorized
	// to connect to a wallet.
	// The value is the string representation of a preferences.ConnectionApproval.
	ConnectionApproval string `json:"connectionApproval"`
}

WalletConnectionDecision is a specific response for interactor.RequestWalletConnectionReview.

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