types

package
v0.78.0 Latest Latest
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 Go to latest Published: May 18, 2021 License: MPL-2.0 Imports: 16 Imported by: 5

Documentation

Index

Constants

View Source 
const (
	// PubKeyLength represents the length (in bytes) of an uncompressed public key
	PubKeyLength = 512 / 8
	// AesKeyLength represents the length (in bytes) of an private key
	AesKeyLength = 256 / 8
)
View Source 
const (
	// EnvelopeTimeNotSynced represents the code passed to notify of a clock skew situation
	EnvelopeTimeNotSynced uint = 1000
	// EnvelopeOtherError represents the code passed to notify of a generic error situation
	EnvelopeOtherError
)
View Source 
const (
	// TopicLength is the expected length of the topic, in bytes
	TopicLength = 4
	// BloomFilterSize is the expected length of a bloom filter byte array, in bytes
	BloomFilterSize = 64
)
View Source 
const AddressLength = 20

AddressLength is the expected length of the address

View Source 
const (
	// HashLength is the expected length of the hash
	HashLength = 32
)
View Source 
const (
	// MaxLimitInMessagesRequest represents the maximum number of messages
	// that can be requested from the mailserver
	MaxLimitInMessagesRequest = 1000
)

Variables

View Source 
var (
	ErrEmptyString   = &decError{"empty hex string"}
	ErrSyntax        = &decError{"invalid hex string"}
	ErrMissingPrefix = &decError{"hex string without 0x prefix"}
	ErrOddLength     = &decError{"hex string of odd length"}
	ErrEmptyNumber   = &decError{"hex string \"0x\""}
	ErrLeadingZero   = &decError{"hex number with leading zero digits"}
	ErrUint64Range   = &decError{"hex number > 64 bits"}
	ErrUintRange     = &decError{fmt.Sprintf("hex number > %d bits", uintBits)}
	ErrBig256Range   = &decError{"hex number > 256 bits"}
)

Errors

Functions

func BloomFilterMatch 

func BloomFilterMatch(filter, sample []byte) bool

BloomFilterMatch returns true if a sample matches a bloom filter

func Bytes2Hex 

func Bytes2Hex(d []byte) string

Bytes2Hex returns the hexadecimal encoding of d.

func DecodeHex 

func DecodeHex(input string) ([]byte, error)

DecodeHex decodes a hex string with 0x prefix.

func EncodeHex 

func EncodeHex(b []byte) string

EncodeHex encodes b as a hex string with 0x prefix.

func FromHex 

func FromHex(s string) []byte

FromHex returns the bytes represented by the hexadecimal string s. s may be prefixed with "0x".

func Hex2Bytes 

func Hex2Bytes(str string) []byte

Hex2Bytes returns the bytes represented by the hexadecimal string str.

func IsHexAddress 

func IsHexAddress(s string) bool

IsHexAddress verifies whether a string can represent a valid hex-encoded Ethereum address or not.

func MakeFullNodeBloom 

func MakeFullNodeBloom() []byte

MakeFullNodeBloom returns a bloom filter which matches all topics

func MustDecodeHex 

func MustDecodeHex(input string) []byte

MustDecodeHex decodes a hex string with 0x prefix. It panics for invalid input.

func TopicToBloom 

func TopicToBloom(topic TopicType) []byte

TopicToBloom converts the topic (4 bytes) to the bloom filter (64 bytes)

func UnmarshalFixedHexText 

func UnmarshalFixedHexText(typname string, input, out []byte) error

UnmarshalFixedHexText decodes the input as a string with 0x prefix. The length of out determines the required input length. This function is commonly used to implement the UnmarshalText method for fixed-size types.

func UnmarshalFixedJSON 

func UnmarshalFixedJSON(typ reflect.Type, input, out []byte) error

UnmarshalFixedJSON decodes the input as a string with 0x prefix. The length of out determines the required input length. This function is commonly used to implement the UnmarshalJSON method for fixed-size types.

func UnmarshalFixedText 

func UnmarshalFixedText(typname string, input, out []byte) error

UnmarshalFixedText decodes the input as a string with 0x prefix. The length of out determines the required input length. This function is commonly used to implement the UnmarshalText method for fixed-size types.

func UnmarshalFixedUnprefixedText 

func UnmarshalFixedUnprefixedText(typname string, input, out []byte) error

UnmarshalFixedUnprefixedText decodes the input as a string with optional 0x prefix. The length of out determines the required input length. This function is commonly used to implement the UnmarshalText method for fixed-size types.

Types

type Account 

type Account struct {
	Address Address `json:"address"` // Ethereum account address derived from the key
	URL     string  `json:"url"`     // Optional resource locator within a backend
}

Account represents an Ethereum account located at a specific location defined by the optional URL field.

type Address 

type Address [AddressLength]byte

Address represents the 20 byte address of an Ethereum account.

func BigToAddress 

func BigToAddress(b *big.Int) Address

BigToAddress returns Address with byte values of b. If b is larger than len(h), b will be cropped from the left.

func BytesToAddress 

func BytesToAddress(b []byte) Address

BytesToAddress returns Address with value b. If b is larger than len(h), b will be cropped from the left.

func HexToAddress 

func HexToAddress(s string) Address

HexToAddress returns Address with byte values of s. If s is larger than len(h), s will be cropped from the left.

func (Address) Bytes 

func (a Address) Bytes() []byte

Bytes gets the string representation of the underlying address.

func (Address) Format 

func (a Address) Format(s fmt.State, c rune)

Format implements fmt.Formatter, forcing the byte slice to be formatted as is, without going through the stringer interface used for logging.

func (Address) Hash 

func (a Address) Hash() Hash

Hash converts an address to a hash by left-padding it with zeros.

func (Address) Hex 

func (a Address) Hex() string

Hex returns an EIP55-compliant hex string representation of the address.

func (Address) ImplementsGraphQLType 

func (a Address) ImplementsGraphQLType(name string) bool

ImplementsGraphQLType returns true if Hash implements the specified GraphQL type.

func (Address) MarshalText 

func (a Address) MarshalText() ([]byte, error)

MarshalText returns the hex representation of a.

func (*Address) Scan 

func (a *Address) Scan(src interface{}) error

Scan implements Scanner for database/sql.

func (*Address) SetBytes 

func (a *Address) SetBytes(b []byte)

SetBytes sets the address to the value of b. If b is larger than len(a) it will panic.

func (Address) String 

func (a Address) String() string

String implements fmt.Stringer.

func (*Address) UnmarshalGraphQL 

func (a *Address) UnmarshalGraphQL(input interface{}) error

UnmarshalGraphQL unmarshals the provided GraphQL query data.

func (*Address) UnmarshalJSON 

func (a *Address) UnmarshalJSON(input []byte) error

UnmarshalJSON parses a hash in hex syntax.

func (*Address) UnmarshalText 

func (a *Address) UnmarshalText(input []byte) error

UnmarshalText parses a hash in hex syntax.

func (Address) Value 

func (a Address) Value() (driver.Value, error)

Value implements valuer for database/sql.

type Criteria 

type Criteria struct {
	SymKeyID     string      `json:"symKeyID"`
	PrivateKeyID string      `json:"privateKeyID"`
	Sig          []byte      `json:"sig"`
	MinPow       float64     `json:"minPow"`
	Topics       []TopicType `json:"topics"`
	AllowP2P     bool        `json:"allowP2P"`
}

Criteria holds various filter options for inbound messages.

type EnodeID 

type EnodeID [32]byte

EnodeID is a unique identifier for each node.

func (EnodeID) String 

func (n EnodeID) String() string

ID prints as a long hexadecimal number.

type Envelope 

type Envelope interface {
	Wrapped

	Hash() Hash // cached hash of the envelope to avoid rehashing every time
	Bloom() []byte
	PoW() float64
	Expiry() uint32
	TTL() uint32
	Topic() TopicType
	Size() int
}

Envelope represents a clear-text data packet to transmit through the Whisper network. Its contents may or may not be encrypted and signed.

type EnvelopeError 

type EnvelopeError struct {
	Hash        Hash
	Code        uint
	Description string
}

EnvelopeError code and optional description of the error.

type EnvelopeEvent 

type EnvelopeEvent struct {
	Event EventType
	Hash  Hash
	Batch Hash
	Peer  EnodeID
	Data  interface{}
}

EnvelopeEvent used for envelopes events.

type EventType 

type EventType string

EventType used to define known envelope events. 

const (
	// EventEnvelopeSent fires when envelope was sent to a peer.
	EventEnvelopeSent EventType = "envelope.sent"
	// EventEnvelopeExpired fires when envelop expired
	EventEnvelopeExpired EventType = "envelope.expired"
	// EventEnvelopeReceived is sent once envelope was received from a peer.
	// EventEnvelopeReceived must be sent to the feed even if envelope was previously in the cache.
	// And event, ideally, should contain information about peer that sent envelope to us.
	EventEnvelopeReceived EventType = "envelope.received"
	// EventBatchAcknowledged is sent when batch of envelopes was acknowledged by a peer.
	EventBatchAcknowledged EventType = "batch.acknowleged"
	// EventEnvelopeAvailable fires when envelop is available for filters
	EventEnvelopeAvailable EventType = "envelope.available"
	// EventMailServerRequestSent fires when such request is sent.
	EventMailServerRequestSent EventType = "mailserver.request.sent"
	// EventMailServerRequestCompleted fires after mailserver sends all the requested messages
	EventMailServerRequestCompleted EventType = "mailserver.request.completed"
	// EventMailServerRequestExpired fires after mailserver the request TTL ends.
	// This event is independent and concurrent to EventMailServerRequestCompleted.
	// Request should be considered as expired only if expiry event was received first.
	EventMailServerRequestExpired EventType = "mailserver.request.expired"
	// EventMailServerEnvelopeArchived fires after an envelope has been archived
	EventMailServerEnvelopeArchived EventType = "mailserver.envelope.archived"
	// EventMailServerSyncFinished fires when the sync of messages is finished.
	EventMailServerSyncFinished EventType = "mailserver.sync.finished"
)

NOTE: This list of event names is extracted from Geth. It must be kept in sync, or otherwise a mapping layer needs to be created

type Filter 

type Filter interface {
	ID() string
}

Filter represents a Whisper message filter

type Hash 

type Hash [HashLength]byte

Hash represents the 32 byte Keccak256 hash of arbitrary data.

func BytesToHash 

func BytesToHash(b []byte) Hash

BytesToHash sets b to hash. If b is larger than len(h), b will be cropped from the left.

func HexToHash 

func HexToHash(s string) Hash

HexToHash sets byte representation of s to hash. If b is larger than len(h), b will be cropped from the left.

func (Hash) Bytes 

func (h Hash) Bytes() []byte

Bytes gets the byte representation of the underlying hash.

func (*Hash) Hex 

func (h *Hash) Hex() string

Hex converts a hash to a hex string.

func (Hash) MarshalText 

func (h Hash) MarshalText() ([]byte, error)

MarshalText returns the hex representation of h.

func (*Hash) SetBytes 

func (h *Hash) SetBytes(b []byte)

SetBytes sets the hash to the value of b. If b is larger than len(h), b will be cropped from the left.

func (Hash) String 

func (h Hash) String() string

String implements the stringer interface and is used also by the logger when doing full logging into a file.

func (*Hash) UnmarshalJSON 

func (h *Hash) UnmarshalJSON(input []byte) error

UnmarshalJSON parses a hash in hex syntax.

func (*Hash) UnmarshalText 

func (h *Hash) UnmarshalText(input []byte) error

UnmarshalText parses a hash in hex syntax.

type HexBytes 

type HexBytes []byte

HexBytes marshals/unmarshals as a JSON string with 0x prefix. The empty slice marshals as "0x".

func (HexBytes) MarshalText 

func (b HexBytes) MarshalText() ([]byte, error)

MarshalText implements encoding.TextMarshaler

func (HexBytes) String 

func (b HexBytes) String() string

String returns the hex encoding of b.

func (*HexBytes) UnmarshalJSON 

func (b *HexBytes) UnmarshalJSON(input []byte) error

UnmarshalJSON implements json.Unmarshaler.

func (*HexBytes) UnmarshalText 

func (b *HexBytes) UnmarshalText(input []byte) error

UnmarshalText implements encoding.TextUnmarshaler.

type Key 

type Key struct {
	ID uuid.UUID // Version 4 "random" for unique id not derived from key data
	// to simplify lookups we also store the address
	Address Address
	// we only store privkey as pubkey/address can be derived from it
	// privkey in this struct is always in plaintext
	PrivateKey *ecdsa.PrivateKey
	// ExtendedKey is the extended key of the PrivateKey itself, and it's used
	// to derive child keys.
	ExtendedKey *extkeys.ExtendedKey
	// SubAccountIndex is DEPRECATED
	// It was use in Status to keep track of the number of sub-account created
	// before having multi-account support.
	SubAccountIndex uint32
}

type KeyStore 

type KeyStore interface {
	// ImportAccount imports the account specified with privateKey.
	ImportECDSA(priv *ecdsa.PrivateKey, passphrase string) (Account, error)
	// ImportSingleExtendedKey imports an extended key setting it in both the PrivateKey and ExtendedKey fields
	// of the Key struct.
	// ImportExtendedKey is used in older version of Status where PrivateKey is set to be the BIP44 key at index 0,
	// and ExtendedKey is the extended key of the BIP44 key at index 1.
	ImportSingleExtendedKey(extKey *extkeys.ExtendedKey, passphrase string) (Account, error)
	// ImportExtendedKeyForPurpose stores ECDSA key (obtained from extended key) along with CKD#2 (root for sub-accounts)
	// If key file is not found, it is created. Key is encrypted with the given passphrase.
	// Deprecated: status-go is now using ImportSingleExtendedKey
	ImportExtendedKeyForPurpose(keyPurpose extkeys.KeyPurpose, extKey *extkeys.ExtendedKey, passphrase string) (Account, error)
	// AccountDecryptedKey returns decrypted key for account (provided that password is correct).
	AccountDecryptedKey(a Account, auth string) (Account, *Key, error)
	// Delete deletes the key matched by account if the passphrase is correct.
	// If the account contains no filename, the address must match a unique key.
	Delete(a Account, auth string) error
}

type MailServerResponse 

type MailServerResponse struct {
	LastEnvelopeHash Hash
	Cursor           []byte
	Error            error
}

MailServerResponse is the response payload sent by the mailserver.

type Message 

type Message struct {
	Sig       []byte    `json:"sig,omitempty"`
	TTL       uint32    `json:"ttl"`
	Timestamp uint32    `json:"timestamp"`
	Topic     TopicType `json:"topic"`
	Payload   []byte    `json:"payload"`
	Padding   []byte    `json:"padding"`
	PoW       float64   `json:"pow"`
	Hash      []byte    `json:"hash"`
	Dst       []byte    `json:"recipientPublicKey,omitempty"`
	P2P       bool      `json:"bool,omitempty"`
}

Message is the RPC representation of a whisper message.

type MessagesRequest 

type MessagesRequest struct {
	// ID of the request. The current implementation requires ID to be 32-byte array,
	// however, it's not enforced for future implementation.
	ID []byte `json:"id"`
	// From is a lower bound of time range.
	From uint32 `json:"from"`
	// To is a upper bound of time range.
	To uint32 `json:"to"`
	// Limit determines the number of messages sent by the mail server
	// for the current paginated request.
	Limit uint32 `json:"limit"`
	// Cursor is used as starting point for paginated requests.
	Cursor []byte `json:"cursor"`
	// Bloom is a filter to match requested messages.
	Bloom []byte `json:"bloom"`
}

MessagesRequest contains details of a request of historic messages.

func (*MessagesRequest) SetDefaults 

func (r *MessagesRequest) SetDefaults(now time.Time)

SetDefaults sets the From and To defaults

type MixedcaseAddress 

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

MixedcaseAddress retains the original string, which may or may not be correctly checksummed

func NewMixedcaseAddress 

func NewMixedcaseAddress(addr Address) MixedcaseAddress

NewMixedcaseAddress constructor (mainly for testing)

func NewMixedcaseAddressFromString 

func NewMixedcaseAddressFromString(hexaddr string) (*MixedcaseAddress, error)

NewMixedcaseAddressFromString is mainly meant for unit-testing

func (*MixedcaseAddress) Address 

func (ma *MixedcaseAddress) Address() Address

Address returns the address

func (*MixedcaseAddress) MarshalJSON 

func (ma *MixedcaseAddress) MarshalJSON() ([]byte, error)

MarshalJSON marshals the original value

func (*MixedcaseAddress) Original 

func (ma *MixedcaseAddress) Original() string

Original returns the mixed-case input string

func (*MixedcaseAddress) String 

func (ma *MixedcaseAddress) String() string

String implements fmt.Stringer

func (*MixedcaseAddress) UnmarshalJSON 

func (ma *MixedcaseAddress) UnmarshalJSON(input []byte) error

UnmarshalJSON parses MixedcaseAddress

func (*MixedcaseAddress) ValidChecksum 

func (ma *MixedcaseAddress) ValidChecksum() bool

ValidChecksum returns true if the address has valid checksum

type NegotiatedSecret 

type NegotiatedSecret struct {
	PublicKey *ecdsa.PublicKey
	Key       []byte
}

NegotiatedSecret represents a negotiated secret (both public and private keys)

type NewMessage 

type NewMessage struct {
	SymKeyID   string    `json:"symKeyID"`
	PublicKey  []byte    `json:"pubKey"`
	SigID      string    `json:"sig"`
	TTL        uint32    `json:"ttl"`
	Topic      TopicType `json:"topic"`
	Payload    []byte    `json:"payload"`
	Padding    []byte    `json:"padding"`
	PowTime    uint32    `json:"powTime"`
	PowTarget  float64   `json:"powTarget"`
	TargetPeer string    `json:"targetPeer"`
}

NewMessage represents a new whisper message that is posted through the RPC.

type Node 

type Node interface {
	NewENSVerifier(logger *zap.Logger) enstypes.ENSVerifier
	GetWhisper(ctx interface{}) (Whisper, error)
	GetWaku(ctx interface{}) (Waku, error)
	AddPeer(url string) error
	RemovePeer(url string) error
	PeersCount() int
}

type PublicWakuAPI 

type PublicWakuAPI interface {
	// AddPrivateKey imports the given private key.
	AddPrivateKey(ctx context.Context, privateKey HexBytes) (string, error)
	// GenerateSymKeyFromPassword derives a key from the given password, stores it, and returns its ID.
	GenerateSymKeyFromPassword(ctx context.Context, passwd string) (string, error)
	// DeleteKeyPair removes the key with the given key if it exists.
	DeleteKeyPair(ctx context.Context, key string) (bool, error)

	// Post posts a message on the Whisper network.
	// returns the hash of the message in case of success.
	Post(ctx context.Context, req NewMessage) ([]byte, error)

	// NewMessageFilter creates a new filter that can be used to poll for
	// (new) messages that satisfy the given criteria.
	NewMessageFilter(req Criteria) (string, error)
	// GetFilterMessages returns the messages that match the filter criteria and
	// are received between the last poll and now.
	GetFilterMessages(id string) ([]*Message, error)
}

PublicWakuAPI provides the waku RPC service that can be use publicly without security implications.

type PublicWhisperAPI 

type PublicWhisperAPI interface {
	// AddPrivateKey imports the given private key.
	AddPrivateKey(ctx context.Context, privateKey HexBytes) (string, error)
	// GenerateSymKeyFromPassword derives a key from the given password, stores it, and returns its ID.
	GenerateSymKeyFromPassword(ctx context.Context, passwd string) (string, error)
	// DeleteKeyPair removes the key with the given key if it exists.
	DeleteKeyPair(ctx context.Context, key string) (bool, error)

	// Post posts a message on the Whisper network.
	// returns the hash of the message in case of success.
	Post(ctx context.Context, req NewMessage) ([]byte, error)

	// NewMessageFilter creates a new filter that can be used to poll for
	// (new) messages that satisfy the given criteria.
	NewMessageFilter(req Criteria) (string, error)
	// GetFilterMessages returns the messages that match the filter criteria and
	// are received between the last poll and now.
	GetFilterMessages(id string) ([]*Message, error)
}

PublicWhisperAPI provides the whisper RPC service that can be use publicly without security implications.

type Subscription 

type Subscription interface {
	Err() <-chan error // returns the error channel
	Unsubscribe()      // cancels sending of events, closing the error channel
}

Subscription represents a stream of events. The carrier of the events is typically a channel, but isn't part of the interface.

Subscriptions can fail while established. Failures are reported through an error channel. It receives a value if there is an issue with the subscription (e.g. the network connection delivering the events has been closed). Only one value will ever be sent.

The error channel is closed when the subscription ends successfully (i.e. when the source of events is closed). It is also closed when Unsubscribe is called.

The Unsubscribe method cancels the sending of events. You must call Unsubscribe in all cases to ensure that resources related to the subscription are released. It can be called any number of times.

type SubscriptionOptions 

type SubscriptionOptions struct {
	PrivateKeyID string
	SymKeyID     string
	PoW          float64
	Topics       [][]byte
}

SubscriptionOptions represents the parameters passed to Subscribe() to customize the subscription behavior.

type SyncEventResponse 

type SyncEventResponse struct {
	Cursor []byte
	Error  string
}

SyncEventResponse is a response from the Mail Server form which the peer received envelopes.

type SyncMailRequest 

type SyncMailRequest struct {
	// Lower is a lower bound of time range for which messages are requested.
	Lower uint32
	// Upper is a lower bound of time range for which messages are requested.
	Upper uint32
	// Bloom is a bloom filter to filter envelopes.
	Bloom []byte
	// Limit is the max number of envelopes to return.
	Limit uint32
	// Cursor is used for pagination of the results.
	Cursor []byte
}

SyncMailRequest contains details which envelopes should be synced between Mail Servers.

type TopicType 

type TopicType [TopicLength]byte

TopicType represents a cryptographically secure, probabilistic partial classifications of a message, determined as the first (left) 4 bytes of the SHA3 hash of some arbitrary data given by the original author of the message.

func BytesToTopic 

func BytesToTopic(b []byte) (t TopicType)

BytesToTopic converts from the byte array representation of a topic into the TopicType type.

func (TopicType) MarshalText 

func (t TopicType) MarshalText() ([]byte, error)

MarshalText returns the hex representation of t.

func (*TopicType) String 

func (t *TopicType) String() string

String converts a topic byte array to a string representation.

func (*TopicType) UnmarshalText 

func (t *TopicType) UnmarshalText(input []byte) error

UnmarshalText parses a hex representation to a topic.

type UnprefixedAddress 

type UnprefixedAddress Address

UnprefixedAddress allows marshaling an Address without 0x prefix.

func (UnprefixedAddress) MarshalText 

func (a UnprefixedAddress) MarshalText() ([]byte, error)

MarshalText encodes the address as hex.

func (*UnprefixedAddress) UnmarshalText 

func (a *UnprefixedAddress) UnmarshalText(input []byte) error

UnmarshalText decodes the address from hex. The 0x prefix is optional.

type Waku 

type Waku interface {
	PublicWakuAPI() PublicWakuAPI

	// MinPow returns the PoW value required by this node.
	MinPow() float64
	// BloomFilter returns the aggregated bloom filter for all the topics of interest.
	// The nodes are required to send only messages that match the advertised bloom filter.
	// If a message does not match the bloom, it will tantamount to spam, and the peer will
	// be disconnected.
	BloomFilter() []byte
	// SetTimeSource assigns a particular source of time to a whisper object.
	SetTimeSource(timesource func() time.Time)
	// GetCurrentTime returns current time.
	GetCurrentTime() time.Time

	// GetPrivateKey retrieves the private key of the specified identity.
	GetPrivateKey(id string) (*ecdsa.PrivateKey, error)

	SubscribeEnvelopeEvents(events chan<- EnvelopeEvent) Subscription

	// AddKeyPair imports a asymmetric private key and returns a deterministic identifier.
	AddKeyPair(key *ecdsa.PrivateKey) (string, error)
	// DeleteKeyPair deletes the key with the specified ID if it exists.
	DeleteKeyPair(keyID string) bool
	AddSymKeyDirect(key []byte) (string, error)
	AddSymKeyFromPassword(password string) (string, error)
	DeleteSymKey(id string) bool
	GetSymKey(id string) ([]byte, error)
	MaxMessageSize() uint32

	Subscribe(opts *SubscriptionOptions) (string, error)
	GetFilter(id string) Filter
	Unsubscribe(id string) error
	UnsubscribeMany(ids []string) error

	// RequestHistoricMessages sends a message with p2pRequestCode to a specific peer,
	// which is known to implement MailServer interface, and is supposed to process this
	// request and respond with a number of peer-to-peer messages (possibly expired),
	// which are not supposed to be forwarded any further.
	// The whisper protocol is agnostic of the format and contents of envelope.
	// A timeout of 0 never expires.
	RequestHistoricMessagesWithTimeout(peerID []byte, envelope Envelope, timeout time.Duration) error
	// SendMessagesRequest sends a MessagesRequest. This is an equivalent to RequestHistoricMessages
	// in terms of the functionality.
	SendMessagesRequest(peerID []byte, request MessagesRequest) error
}

Whisper represents a dark communication interface through the Ethereum network, using its very own P2P communication layer.

type Whisper 

type Whisper interface {
	PublicWhisperAPI() PublicWhisperAPI

	// MinPow returns the PoW value required by this node.
	MinPow() float64
	// BloomFilter returns the aggregated bloom filter for all the topics of interest.
	// The nodes are required to send only messages that match the advertised bloom filter.
	// If a message does not match the bloom, it will tantamount to spam, and the peer will
	// be disconnected.
	BloomFilter() []byte
	// SetTimeSource assigns a particular source of time to a whisper object.
	SetTimeSource(timesource func() time.Time)
	// GetCurrentTime returns current time.
	GetCurrentTime() time.Time
	MaxMessageSize() uint32

	// GetPrivateKey retrieves the private key of the specified identity.
	GetPrivateKey(id string) (*ecdsa.PrivateKey, error)

	SubscribeEnvelopeEvents(events chan<- EnvelopeEvent) Subscription

	// AddKeyPair imports a asymmetric private key and returns a deterministic identifier.
	AddKeyPair(key *ecdsa.PrivateKey) (string, error)
	// DeleteKeyPair deletes the key with the specified ID if it exists.
	DeleteKeyPair(keyID string) bool
	// DeleteKeyPairs removes all cryptographic identities known to the node
	DeleteKeyPairs() error
	AddSymKeyDirect(key []byte) (string, error)
	AddSymKeyFromPassword(password string) (string, error)
	DeleteSymKey(id string) bool
	GetSymKey(id string) ([]byte, error)

	Subscribe(opts *SubscriptionOptions) (string, error)
	GetFilter(id string) Filter
	Unsubscribe(id string) error
	UnsubscribeMany(ids []string) error

	// RequestHistoricMessages sends a message with p2pRequestCode to a specific peer,
	// which is known to implement MailServer interface, and is supposed to process this
	// request and respond with a number of peer-to-peer messages (possibly expired),
	// which are not supposed to be forwarded any further.
	// The whisper protocol is agnostic of the format and contents of envelope.
	// A timeout of 0 never expires.
	RequestHistoricMessagesWithTimeout(peerID []byte, envelope Envelope, timeout time.Duration) error
	// SendMessagesRequest sends a MessagesRequest. This is an equivalent to RequestHistoricMessages
	// in terms of the functionality.
	SendMessagesRequest(peerID []byte, request MessagesRequest) error
	// SyncMessages can be sent between two Mail Servers and syncs envelopes between them.
	SyncMessages(peerID []byte, req SyncMailRequest) error
}

Whisper represents a dark communication interface through the Ethereum network, using its very own P2P communication layer.

type Wrapped 

type Wrapped interface {
	Unwrap() interface{}
}

Wrapped tells that a given object has an underlying representation and this representation can be accessed using `Unwrap` method.

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