status-go/services/ext/api.go

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package ext
import (
"context"
"encoding/hex"
"errors"
"fmt"
"math/big"
"time"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/rlp"
"github.com/status-im/status-go/eth-node/types"
"github.com/status-im/status-go/mailserver"
"github.com/status-im/status-go/protocol"
"github.com/status-im/status-go/protocol/encryption/multidevice"
"github.com/status-im/status-go/protocol/transport"
"github.com/status-im/status-go/services/ext/mailservers"
)
const (
// defaultRequestTimeout is the default request timeout in seconds
defaultRequestTimeout = 10
)
var (
// ErrInvalidMailServerPeer is returned when it fails to parse enode from params.
ErrInvalidMailServerPeer = errors.New("invalid mailServerPeer value")
// ErrInvalidSymKeyID is returned when it fails to get a symmetric key.
ErrInvalidSymKeyID = errors.New("invalid symKeyID value")
// ErrInvalidPublicKey is returned when public key can't be extracted
// from MailServer's nodeID.
ErrInvalidPublicKey = errors.New("can't extract public key")
// ErrPFSNotEnabled is returned when an endpoint PFS only is called but
// PFS is disabled
ErrPFSNotEnabled = errors.New("pfs not enabled")
)
// -----
// PAYLOADS
// -----
// MessagesRequest is a RequestMessages() request payload.
type MessagesRequest struct {
// MailServerPeer is MailServer's enode address.
MailServerPeer string `json:"mailServerPeer"`
// From is a lower bound of time range (optional).
// Default is 24 hours back from now.
From uint32 `json:"from"`
// To is a upper bound of time range (optional).
// Default is now.
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 string `json:"cursor"`
// Topic is a regular Whisper topic.
// DEPRECATED
Topic types.TopicType `json:"topic"`
// Topics is a list of Whisper topics.
Topics []types.TopicType `json:"topics"`
// SymKeyID is an ID of a symmetric key to authenticate to MailServer.
// It's derived from MailServer password.
SymKeyID string `json:"symKeyID"`
// Timeout is the time to live of the request specified in seconds.
// Default is 10 seconds
Timeout time.Duration `json:"timeout"`
// Force ensures that requests will bypass enforced delay.
Force bool `json:"force"`
}
func (r *MessagesRequest) SetDefaults(now time.Time) {
// set From and To defaults
if r.To == 0 {
r.To = uint32(now.UTC().Unix())
}
if r.From == 0 {
oneDay := uint32(86400) // -24 hours
if r.To < oneDay {
r.From = 0
} else {
r.From = r.To - oneDay
}
}
if r.Timeout == 0 {
r.Timeout = defaultRequestTimeout
}
}
// MessagesResponse is a response for requestMessages2 method.
type MessagesResponse struct {
// Cursor from the response can be used to retrieve more messages
// for the previous request.
Cursor string `json:"cursor"`
// Error indicates that something wrong happened when sending messages
// to the requester.
Error error `json:"error"`
}
// -----
// PUBLIC API
// -----
// PublicAPI extends whisper public API.
type PublicAPI struct {
service *Service
eventSub mailservers.EnvelopeEventSubscriber
log log.Logger
}
// NewPublicAPI returns instance of the public API.
func NewPublicAPI(s *Service, eventSub mailservers.EnvelopeEventSubscriber) *PublicAPI {
return &PublicAPI{
service: s,
eventSub: eventSub,
log: log.New("package", "status-go/services/sshext.PublicAPI"),
}
}
// RetryConfig specifies configuration for retries with timeout and max amount of retries.
type RetryConfig struct {
BaseTimeout time.Duration
// StepTimeout defines duration increase per each retry.
StepTimeout time.Duration
MaxRetries int
}
func WaitForExpiredOrCompleted(requestID types.Hash, events chan types.EnvelopeEvent, timeout time.Duration) (*types.MailServerResponse, error) {
expired := fmt.Errorf("request %x expired", requestID)
after := time.NewTimer(timeout)
defer after.Stop()
for {
var ev types.EnvelopeEvent
select {
case ev = <-events:
case <-after.C:
return nil, expired
}
if ev.Hash != requestID {
continue
}
switch ev.Event {
case types.EventMailServerRequestCompleted:
data, ok := ev.Data.(*types.MailServerResponse)
if ok {
return data, nil
}
return nil, errors.New("invalid event data type")
case types.EventMailServerRequestExpired:
return nil, expired
}
}
}
type Author struct {
PublicKey types.HexBytes `json:"publicKey"`
Alias string `json:"alias"`
Identicon string `json:"identicon"`
}
type Metadata struct {
DedupID []byte `json:"dedupId"`
EncryptionID types.HexBytes `json:"encryptionId"`
MessageID types.HexBytes `json:"messageId"`
Author Author `json:"author"`
}
// ConfirmMessagesProcessedByID is a method to confirm that messages was consumed by
// the client side.
// TODO: this is broken now as it requires dedup ID while a message hash should be used.
func (api *PublicAPI) ConfirmMessagesProcessedByID(messageConfirmations []*Metadata) error {
confirmationCount := len(messageConfirmations)
dedupIDs := make([][]byte, confirmationCount)
encryptionIDs := make([][]byte, confirmationCount)
for i, confirmation := range messageConfirmations {
dedupIDs[i] = confirmation.DedupID
encryptionIDs[i] = confirmation.EncryptionID
}
return api.service.ConfirmMessagesProcessed(encryptionIDs)
}
func (api *PublicAPI) Join(chat protocol.Chat) error {
return api.service.messenger.Join(chat)
}
func (api *PublicAPI) Leave(chat protocol.Chat) error {
return api.service.messenger.Leave(chat)
}
func (api *PublicAPI) LeaveGroupChat(ctx Context, chatID string) (*protocol.MessengerResponse, error) {
return api.service.messenger.LeaveGroupChat(ctx, chatID)
}
func (api *PublicAPI) CreateGroupChatWithMembers(ctx Context, name string, members []string) (*protocol.MessengerResponse, error) {
return api.service.messenger.CreateGroupChatWithMembers(ctx, name, members)
}
func (api *PublicAPI) AddMembersToGroupChat(ctx Context, chatID string, members []string) (*protocol.MessengerResponse, error) {
return api.service.messenger.AddMembersToGroupChat(ctx, chatID, members)
}
func (api *PublicAPI) RemoveMemberFromGroupChat(ctx Context, chatID string, member string) (*protocol.MessengerResponse, error) {
return api.service.messenger.RemoveMemberFromGroupChat(ctx, chatID, member)
}
func (api *PublicAPI) AddAdminsToGroupChat(ctx Context, chatID string, members []string) (*protocol.MessengerResponse, error) {
return api.service.messenger.AddAdminsToGroupChat(ctx, chatID, members)
}
func (api *PublicAPI) ConfirmJoiningGroup(ctx context.Context, chatID string) (*protocol.MessengerResponse, error) {
return api.service.messenger.ConfirmJoiningGroup(ctx, chatID)
}
func (api *PublicAPI) LoadFilters(parent context.Context, chats []*transport.Filter) ([]*transport.Filter, error) {
return api.service.messenger.LoadFilters(chats)
}
func (api *PublicAPI) SaveChat(parent context.Context, chat *protocol.Chat) error {
api.log.Info("saving chat", "chat", chat)
return api.service.messenger.SaveChat(chat)
}
func (api *PublicAPI) Chats(parent context.Context) []*protocol.Chat {
return api.service.messenger.Chats()
}
func (api *PublicAPI) DeleteChat(parent context.Context, chatID string) error {
return api.service.messenger.DeleteChat(chatID)
}
func (api *PublicAPI) SaveContact(parent context.Context, contact *protocol.Contact) error {
return api.service.messenger.SaveContact(contact)
}
func (api *PublicAPI) BlockContact(parent context.Context, contact *protocol.Contact) ([]*protocol.Chat, error) {
api.log.Info("blocking contact", "contact", contact.ID)
return api.service.messenger.BlockContact(contact)
}
func (api *PublicAPI) Contacts(parent context.Context) []*protocol.Contact {
return api.service.messenger.Contacts()
}
func (api *PublicAPI) RemoveFilters(parent context.Context, chats []*transport.Filter) error {
return api.service.messenger.RemoveFilters(chats)
}
// EnableInstallation enables an installation for multi-device sync.
func (api *PublicAPI) EnableInstallation(installationID string) error {
return api.service.messenger.EnableInstallation(installationID)
}
// DisableInstallation disables an installation for multi-device sync.
func (api *PublicAPI) DisableInstallation(installationID string) error {
return api.service.messenger.DisableInstallation(installationID)
}
// GetOurInstallations returns all the installations available given an identity
func (api *PublicAPI) GetOurInstallations() []*multidevice.Installation {
return api.service.messenger.Installations()
}
// SetInstallationMetadata sets the metadata for our own installation
func (api *PublicAPI) SetInstallationMetadata(installationID string, data *multidevice.InstallationMetadata) error {
return api.service.messenger.SetInstallationMetadata(installationID, data)
}
type ApplicationMessagesResponse struct {
Messages []*protocol.Message `json:"messages"`
Cursor string `json:"cursor"`
}
func (api *PublicAPI) ChatMessages(chatID, cursor string, limit int) (*ApplicationMessagesResponse, error) {
messages, cursor, err := api.service.messenger.MessageByChatID(chatID, cursor, limit)
if err != nil {
return nil, err
}
return &ApplicationMessagesResponse{
Messages: messages,
Cursor: cursor,
}, nil
}
func (api *PublicAPI) StartMessenger() error {
return api.service.StartMessenger()
}
func (api *PublicAPI) DeleteMessage(id string) error {
return api.service.messenger.DeleteMessage(id)
}
func (api *PublicAPI) DeleteMessagesByChatID(id string) error {
return api.service.messenger.DeleteMessagesByChatID(id)
}
func (api *PublicAPI) MarkMessagesSeen(chatID string, ids []string) error {
return api.service.messenger.MarkMessagesSeen(chatID, ids)
}
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func (api *PublicAPI) MarkAllRead(chatID string) error {
return api.service.messenger.MarkAllRead(chatID)
}
func (api *PublicAPI) UpdateMessageOutgoingStatus(id, newOutgoingStatus string) error {
return api.service.messenger.UpdateMessageOutgoingStatus(id, newOutgoingStatus)
}
func (api *PublicAPI) SendChatMessage(ctx context.Context, message *protocol.Message) (*protocol.MessengerResponse, error) {
return api.service.messenger.SendChatMessage(ctx, message)
}
func (api *PublicAPI) ReSendChatMessage(ctx context.Context, messageID string) error {
return api.service.messenger.ReSendChatMessage(ctx, messageID)
}
func (api *PublicAPI) RequestTransaction(ctx context.Context, chatID, value, contract, address string) (*protocol.MessengerResponse, error) {
return api.service.messenger.RequestTransaction(ctx, chatID, value, contract, address)
}
func (api *PublicAPI) RequestAddressForTransaction(ctx context.Context, chatID, from, value, contract string) (*protocol.MessengerResponse, error) {
return api.service.messenger.RequestAddressForTransaction(ctx, chatID, from, value, contract)
}
func (api *PublicAPI) DeclineRequestAddressForTransaction(ctx context.Context, messageID string) (*protocol.MessengerResponse, error) {
return api.service.messenger.DeclineRequestAddressForTransaction(ctx, messageID)
}
func (api *PublicAPI) DeclineRequestTransaction(ctx context.Context, messageID string) (*protocol.MessengerResponse, error) {
return api.service.messenger.DeclineRequestTransaction(ctx, messageID)
}
func (api *PublicAPI) AcceptRequestAddressForTransaction(ctx context.Context, messageID, address string) (*protocol.MessengerResponse, error) {
return api.service.messenger.AcceptRequestAddressForTransaction(ctx, messageID, address)
}
func (api *PublicAPI) SendTransaction(ctx context.Context, chatID, value, contract, transactionHash string, signature types.HexBytes) (*protocol.MessengerResponse, error) {
return api.service.messenger.SendTransaction(ctx, chatID, value, contract, transactionHash, signature)
}
func (api *PublicAPI) AcceptRequestTransaction(ctx context.Context, transactionHash, messageID string, signature types.HexBytes) (*protocol.MessengerResponse, error) {
return api.service.messenger.AcceptRequestTransaction(ctx, transactionHash, messageID, signature)
}
func (api *PublicAPI) SendContactUpdates(ctx context.Context, name, picture string) error {
return api.service.messenger.SendContactUpdates(ctx, name, picture)
}
func (api *PublicAPI) SendContactUpdate(ctx context.Context, contactID, name, picture string) (*protocol.MessengerResponse, error) {
return api.service.messenger.SendContactUpdate(ctx, contactID, name, picture)
}
func (api *PublicAPI) SendPairInstallation(ctx context.Context) (*protocol.MessengerResponse, error) {
return api.service.messenger.SendPairInstallation(ctx)
}
func (api *PublicAPI) SyncDevices(ctx context.Context, name, picture string) error {
return api.service.messenger.SyncDevices(ctx, name, picture)
}
func (api *PublicAPI) UpdateMailservers(enodes []string) error {
nodes := make([]*enode.Node, len(enodes))
for i, rawurl := range enodes {
node, err := enode.ParseV4(rawurl)
if err != nil {
return err
}
nodes[i] = node
}
return api.service.UpdateMailservers(nodes)
}
// Echo is a method for testing purposes.
func (api *PublicAPI) Echo(ctx context.Context, message string) (string, error) {
return message, nil
}
// -----
// HELPER
// -----
// MakeMessagesRequestPayload makes a specific payload for MailServer
// to request historic messages.
// DEPRECATED
func MakeMessagesRequestPayload(r MessagesRequest) ([]byte, error) {
cursor, err := hex.DecodeString(r.Cursor)
if err != nil {
return nil, fmt.Errorf("invalid cursor: %v", err)
}
if len(cursor) > 0 && len(cursor) != mailserver.CursorLength {
return nil, fmt.Errorf("invalid cursor size: expected %d but got %d", mailserver.CursorLength, len(cursor))
}
payload := mailserver.MessagesRequestPayload{
Lower: r.From,
Upper: r.To,
Bloom: createBloomFilter(r),
Limit: r.Limit,
Cursor: cursor,
// Client must tell the MailServer if it supports batch responses.
// This can be removed in the future.
Batch: true,
}
return rlp.EncodeToBytes(payload)
}
func createBloomFilter(r MessagesRequest) []byte {
if len(r.Topics) > 0 {
return topicsToBloom(r.Topics...)
}
return types.TopicToBloom(r.Topic)
}
func topicsToBloom(topics ...types.TopicType) []byte {
i := new(big.Int)
for _, topic := range topics {
bloom := types.TopicToBloom(topic)
i.Or(i, new(big.Int).SetBytes(bloom[:]))
}
combined := make([]byte, types.BloomFilterSize)
data := i.Bytes()
copy(combined[types.BloomFilterSize-len(data):], data[:])
return combined
}
// TopicsToBloom squashes all topics into a single bloom filter.
func TopicsToBloom(topics ...types.TopicType) []byte {
return topicsToBloom(topics...)
}