common

package
v0.67.1 Latest Latest
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 Go to latest Published: Jan 8, 2021 License: MPL-2.0, MPL-2.0 Imports: 33 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	OutgoingStatusSending = "sending"
	OutgoingStatusSent    = "sent"
)

Variables

View Source 
var ErrInvalidCiphertextLength = errors.New("invalid cyphertext length")
View Source 
var ErrRecordNotFound = errors.New("record not found")

Functions

func Decrypt 

func Decrypt(cyphertext []byte, key []byte) ([]byte, error)

func Encrypt 

func Encrypt(plaintext []byte, key []byte, reader io.Reader) ([]byte, error)

func HashPublicKey 

func HashPublicKey(pk *ecdsa.PublicKey) []byte

func HexToPubkey added in v0.67.0 

func HexToPubkey(pk string) (*ecdsa.PublicKey, error)

func IsPubKeyEqual 

func IsPubKeyEqual(a, b *ecdsa.PublicKey) bool

IsPubKeyEqual checks that two public keys are equal

func MessageSpecToWhisper 

func MessageSpecToWhisper(spec *encryption.ProtocolMessageSpec) (*types.NewMessage, error)

func PubkeyToHex added in v0.67.0 

func PubkeyToHex(key *ecdsa.PublicKey) string

func Shake256 

func Shake256(buf []byte) []byte

Types

type ChatEntity added in v0.56.4 

type ChatEntity interface {
	proto.Message

	GetChatId() string
	GetMessageType() protobuf.MessageType
	GetSigPubKey() *ecdsa.PublicKey
	GetProtobuf() proto.Message
	GetGrant() []byte

	SetMessageType(messageType protobuf.MessageType)
}

ChatEntity is anything that is sendable in a chat. Currently it encompass a Message and EmojiReaction.

type CommandParameters added in v0.61.0 

type CommandParameters struct {
	// ID is the ID of the initial message
	ID string `json:"id"`
	// From is the address we are sending the command from
	From string `json:"from"`
	// Address is the address sent with the command
	Address string `json:"address"`
	// Contract is the contract address for ERC20 tokens
	Contract string `json:"contract"`
	// Value is the value as a string sent
	Value string `json:"value"`
	// TransactionHash is the hash of the transaction
	TransactionHash string `json:"transactionHash"`
	// CommandState is the state of the command
	CommandState CommandState `json:"commandState"`
	// The Signature of the pk-bytes+transaction-hash from the wallet
	// address originating
	Signature []byte `json:"signature"`
}

func (*CommandParameters) IsTokenTransfer added in v0.61.0 

func (c *CommandParameters) IsTokenTransfer() bool

type CommandState added in v0.61.0 

type CommandState int
const (
	CommandStateRequestAddressForTransaction CommandState = iota + 1
	CommandStateRequestAddressForTransactionDeclined
	CommandStateRequestAddressForTransactionAccepted
	CommandStateRequestTransaction
	CommandStateRequestTransactionDeclined
	CommandStateTransactionPending
	CommandStateTransactionSent
)

type FeatureFlags 

type FeatureFlags struct {
	// Datasync indicates whether direct messages should be sent exclusively
	// using datasync, breaking change for non-v1 clients. Public messages
	// are not impacted
	Datasync bool

	// PushNotification indicates whether we should be enabling the push notification feature
	PushNotifications bool
}

type Message added in v0.61.0 

type Message struct {
	protobuf.ChatMessage

	// ID calculated as keccak256(compressedAuthorPubKey, data) where data is unencrypted payload.
	ID string `json:"id"`
	// WhisperTimestamp is a timestamp of a Whisper envelope.
	WhisperTimestamp uint64 `json:"whisperTimestamp"`
	// From is a public key of the author of the message.
	From string `json:"from"`
	// Random 3 words name
	Alias string `json:"alias"`
	// Identicon of the author
	Identicon string `json:"identicon"`
	// The chat id to be stored locally
	LocalChatID string `json:"localChatId"`

	Seen           bool   `json:"seen"`
	OutgoingStatus string `json:"outgoingStatus,omitempty"`

	QuotedMessage *QuotedMessage `json:"quotedMessage"`

	// CommandParameters is the parameters sent with the message
	CommandParameters *CommandParameters `json:"commandParameters"`

	// Computed fields
	// RTL is whether this is a right-to-left message (arabic/hebrew script etc)
	RTL bool `json:"rtl"`
	// ParsedText is the parsed markdown for displaying
	ParsedText []byte `json:"parsedText,omitempty"`
	// LineCount is the count of newlines in the message
	LineCount int `json:"lineCount"`
	// Base64Image is the converted base64 image
	Base64Image string `json:"image,omitempty"`
	// ImagePath is the path of the image to be sent
	ImagePath string `json:"imagePath,omitempty"`
	// Base64Audio is the converted base64 audio
	Base64Audio string `json:"audio,omitempty"`
	// AudioPath is the path of the audio to be sent
	AudioPath string `json:"audioPath,omitempty"`

	// CommunityID is the id of the community to advertise
	CommunityID string `json:"communityId,omitempty"`

	// Replace indicates that this is a replacement of a message
	// that has been updated
	Replace string `json:"replace,omitempty"`
	New     bool   `json:"new,omitempty"`

	SigPubKey *ecdsa.PublicKey `json:"-"`

	// Mentions is an array of mentions for a given message
	Mentions []string

	// Links is an array of links within given message
	Links []string
}

Message represents a message record in the database, more specifically in user_messages table.

func (*Message) GetProtobuf added in v0.61.0 

func (m *Message) GetProtobuf() proto.Message

GetProtoBuf returns the struct's embedded protobuf struct this function is required to implement the ChatEntity interface

func (Message) GetSigPubKey added in v0.61.0 

func (m Message) GetSigPubKey() *ecdsa.PublicKey

GetSigPubKey returns an ecdsa encoded public key this function is required to implement the ChatEntity interface

func (*Message) MarshalJSON added in v0.61.0 

func (m *Message) MarshalJSON() ([]byte, error)

func (*Message) PrepareContent added in v0.61.0 

func (m *Message) PrepareContent() error

PrepareContent return the parsed content of the message, the line-count and whether is a right-to-left message

func (*Message) SetMessageType added in v0.61.0 

func (m *Message) SetMessageType(messageType protobuf.MessageType)

SetMessageType a setter for the MessageType field this function is required to implement the ChatEntity interface

func (*Message) UnmarshalJSON added in v0.61.0 

func (m *Message) UnmarshalJSON(data []byte) error

type MessageProcessor 

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

func NewMessageProcessor 

func NewMessageProcessor(
	identity *ecdsa.PrivateKey,
	database *sql.DB,
	enc *encryption.Protocol,
	transport transport.Transport,
	logger *zap.Logger,
	features FeatureFlags,
) (*MessageProcessor, error)

func (*MessageProcessor) AddEphemeralKey 

func (p *MessageProcessor) AddEphemeralKey(privateKey *ecdsa.PrivateKey) (*transport.Filter, error)

AddEphemeralKey adds an ephemeral key that we will be listening to note that we never removed them from now, as waku/whisper does not recalculate topics on removal, so effectively there's no benefit. On restart they will be gone.

func (*MessageProcessor) EncodeMembershipUpdate 

func (p *MessageProcessor) EncodeMembershipUpdate(
	group *v1protocol.Group,
	chatEntity ChatEntity,
) ([]byte, error)

EncodeMembershipUpdate takes a group and an optional chat message and returns the protobuf representation to be sent on the wire. All the events in a group are encoded and added to the payload

func (*MessageProcessor) HandleMessages 

func (p *MessageProcessor) HandleMessages(shhMessage *types.Message, applicationLayer bool) ([]*v1protocol.StatusMessage, error)

HandleMessages expects a whisper message as input, and it will go through a series of transformations until the message is parsed into an application layer message, or in case of Raw methods, the processing stops at the layer before. It returns an error only if the processing of required steps failed.

func (*MessageProcessor) JoinPublic 

func (p *MessageProcessor) JoinPublic(chatID string) error

func (*MessageProcessor) SendGroup 

func (p *MessageProcessor) SendGroup(
	ctx context.Context,
	recipients []*ecdsa.PublicKey,
	rawMessage RawMessage,
) ([]byte, error)

SendGroup takes encoded data, encrypts it and sends through the wire, always return the messageID

func (*MessageProcessor) SendPairInstallation 

func (p *MessageProcessor) SendPairInstallation(
	ctx context.Context,
	recipient *ecdsa.PublicKey,
	rawMessage RawMessage,
) ([]byte, error)

sendPairInstallation sends data to the recipients, using DH

func (*MessageProcessor) SendPrivate 

func (p *MessageProcessor) SendPrivate(
	ctx context.Context,
	recipient *ecdsa.PublicKey,
	rawMessage RawMessage,
) ([]byte, error)

SendPrivate takes encoded data, encrypts it and sends through the wire.

func (*MessageProcessor) SendPublic 

func (p *MessageProcessor) SendPublic(
	ctx context.Context,
	chatName string,
	rawMessage RawMessage,
) ([]byte, error)

SendPublic takes encoded data, encrypts it and sends through the wire.

func (*MessageProcessor) SetHandleSharedSecrets added in v0.59.0 

func (p *MessageProcessor) SetHandleSharedSecrets(handler func([]*sharedsecret.Secret) error)

func (*MessageProcessor) Stop 

func (p *MessageProcessor) Stop()

func (*MessageProcessor) SubscribeToScheduledMessages 

func (p *MessageProcessor) SubscribeToScheduledMessages() <-chan *RawMessage

SubscribeToScheduledMessages returns a channel where we publish every time a message is scheduled for sending

func (*MessageProcessor) SubscribeToSentMessages 

func (p *MessageProcessor) SubscribeToSentMessages() <-chan *SentMessage

SubscribeToSentMessages returns a channel where we publish every time a message is sent

type NodeVisitor added in v0.62.15 

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

implement interface of https://github.com/status-im/markdown/blob/b9fe921681227b1dace4b56364e15edb3b698308/ast/node.go#L701

func (*NodeVisitor) Visit added in v0.62.15 

func (v *NodeVisitor) Visit(node ast.Node, entering bool) ast.WalkStatus

type QuotedMessage added in v0.61.0 

type QuotedMessage struct {
	// From is a public key of the author of the message.
	From       string          `json:"from"`
	Text       string          `json:"text"`
	ParsedText json.RawMessage `json:"parsedText,omitempty"`
	// Base64Image is the converted base64 image
	Base64Image string `json:"image,omitempty"`
	// Base64Audio is the converted base64 audio
	Base64Audio string `json:"audio,omitempty"`
	// AudioDurationMs is the audio duration in milliseconds
	AudioDurationMs uint64 `json:"audioDurationMs,omitempty"`
	// CommunityID is the id of the community advertised
	CommunityID string `json:"communityId,omitempty"`
}

QuotedMessage contains the original text of the message replied to

type RawMessage 

type RawMessage struct {
	ID                   string
	LocalChatID          string
	LastSent             uint64
	SendCount            int
	Sent                 bool
	ResendAutomatically  bool
	SkipEncryption       bool
	SendPushNotification bool
	MessageType          protobuf.ApplicationMetadataMessage_Type
	Payload              []byte
	Sender               *ecdsa.PrivateKey
	Recipients           []*ecdsa.PublicKey
}

RawMessage represent a sent or received message, kept for being able to re-send/propagate

type SentMessage 

type SentMessage struct {
	PublicKey  *ecdsa.PublicKey
	Spec       *encryption.ProtocolMessageSpec
	MessageIDs [][]byte
}

SentMessage reprent a message that has been passed to the transport layer

type TimeSource added in v0.67.0 

type TimeSource interface {
	GetCurrentTime() uint64
}

TimeSource provides a unified way of getting the current time. The intention is to always use a synchronized time source between all components of the protocol.

This is required by Whisper and Waku protocols which rely on a fact that all peers have a synchronized time source.

Source Files

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