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messenger.go
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messenger.go
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package protocol
import (
"bytes"
"context"
"crypto/ecdsa"
"database/sql"
"encoding/hex"
"fmt"
"io/ioutil"
"math"
"math/rand"
"os"
"reflect"
"sync"
"time"
"github.com/pkg/errors"
"go.uber.org/zap"
"github.com/davecgh/go-spew/spew"
"github.com/golang/protobuf/proto"
"github.com/status-im/status-go/appdatabase"
"github.com/status-im/status-go/appmetrics"
"github.com/status-im/status-go/connection"
"github.com/status-im/status-go/eth-node/crypto"
"github.com/status-im/status-go/eth-node/types"
userimage "github.com/status-im/status-go/images"
"github.com/status-im/status-go/multiaccounts"
"github.com/status-im/status-go/multiaccounts/accounts"
"github.com/status-im/status-go/protocol/anonmetrics"
"github.com/status-im/status-go/protocol/audio"
"github.com/status-im/status-go/protocol/common"
"github.com/status-im/status-go/protocol/communities"
"github.com/status-im/status-go/protocol/encryption"
"github.com/status-im/status-go/protocol/encryption/multidevice"
"github.com/status-im/status-go/protocol/encryption/sharedsecret"
"github.com/status-im/status-go/protocol/ens"
"github.com/status-im/status-go/protocol/identity/alias"
"github.com/status-im/status-go/protocol/identity/identicon"
"github.com/status-im/status-go/protocol/images"
"github.com/status-im/status-go/protocol/protobuf"
"github.com/status-im/status-go/protocol/pushnotificationclient"
"github.com/status-im/status-go/protocol/pushnotificationserver"
"github.com/status-im/status-go/protocol/sqlite"
"github.com/status-im/status-go/protocol/transport"
v1protocol "github.com/status-im/status-go/protocol/v1"
"github.com/status-im/status-go/services/mailservers"
)
//todo: kozieiev: get rid of wakutransp word
type chatContext string
const (
PubKeyStringLength = 132
transactionSentTxt = "Transaction sent"
publicChat chatContext = "public-chat"
privateChat chatContext = "private-chat"
)
const emojiResendMinDelay = 30
const emojiResendMaxCount = 3
var communityAdvertiseIntervalSecond int64 = 60 * 60
// messageCacheIntervalMs is how long we should keep processed messages in the cache, in ms
var messageCacheIntervalMs uint64 = 1000 * 60 * 60 * 48
// Messenger is a entity managing chats and messages.
// It acts as a bridge between the application and encryption
// layers.
// It needs to expose an interface to manage installations
// because installations are managed by the user.
// Similarly, it needs to expose an interface to manage
// mailservers because they can also be managed by the user.
type Messenger struct {
node types.Node
config *config
identity *ecdsa.PrivateKey
persistence *sqlitePersistence
transport *transport.Transport
encryptor *encryption.Protocol
sender *common.MessageSender
ensVerifier *ens.Verifier
anonMetricsClient *anonmetrics.Client
anonMetricsServer *anonmetrics.Server
pushNotificationClient *pushnotificationclient.Client
pushNotificationServer *pushnotificationserver.Server
communitiesManager *communities.Manager
logger *zap.Logger
verifyTransactionClient EthClient
featureFlags common.FeatureFlags
shutdownTasks []func() error
shouldPublishContactCode bool
systemMessagesTranslations *systemMessageTranslationsMap
allChats *chatMap
allContacts *contactMap
allInstallations *installationMap
modifiedInstallations *stringBoolMap
installationID string
mailserver []byte
database *sql.DB
multiAccounts *multiaccounts.Database
settings *accounts.Database
account *multiaccounts.Account
mailserversDatabase *mailservers.Database
quit chan struct{}
requestedCommunities map[string]*transport.Filter
connectionState connection.State
// TODO(samyoul) Determine if/how the remaining usage of this mutex can be removed
mutex sync.Mutex
}
type dbConfig struct {
dbPath string
dbKey string
}
type EnvelopeEventsInterceptor struct {
EnvelopeEventsHandler transport.EnvelopeEventsHandler
Messenger *Messenger
}
// EnvelopeSent triggered when envelope delivered at least to 1 peer.
func (interceptor EnvelopeEventsInterceptor) EnvelopeSent(identifiers [][]byte) {
if interceptor.Messenger != nil {
var ids []string
for _, identifierBytes := range identifiers {
ids = append(ids, types.EncodeHex(identifierBytes))
}
err := interceptor.Messenger.processSentMessages(ids)
if err != nil {
interceptor.Messenger.logger.Info("Messenger failed to process sent messages", zap.Error(err))
}
}
interceptor.EnvelopeEventsHandler.EnvelopeSent(identifiers)
}
// EnvelopeExpired triggered when envelope is expired but wasn't delivered to any peer.
func (interceptor EnvelopeEventsInterceptor) EnvelopeExpired(identifiers [][]byte, err error) {
//we don't track expired events in Messenger, so just redirect to handler
interceptor.EnvelopeEventsHandler.EnvelopeExpired(identifiers, err)
}
// MailServerRequestCompleted triggered when the mailserver sends a message to notify that the request has been completed
func (interceptor EnvelopeEventsInterceptor) MailServerRequestCompleted(requestID types.Hash, lastEnvelopeHash types.Hash, cursor []byte, err error) {
//we don't track mailserver requests in Messenger, so just redirect to handler
interceptor.EnvelopeEventsHandler.MailServerRequestCompleted(requestID, lastEnvelopeHash, cursor, err)
}
// MailServerRequestExpired triggered when the mailserver request expires
func (interceptor EnvelopeEventsInterceptor) MailServerRequestExpired(hash types.Hash) {
//we don't track mailserver requests in Messenger, so just redirect to handler
interceptor.EnvelopeEventsHandler.MailServerRequestExpired(hash)
}
func NewMessenger(
identity *ecdsa.PrivateKey,
node types.Node,
installationID string,
opts ...Option,
) (*Messenger, error) {
var messenger *Messenger
c := config{}
for _, opt := range opts {
if err := opt(&c); err != nil {
return nil, err
}
}
logger := c.logger
if c.logger == nil {
var err error
if logger, err = zap.NewDevelopment(); err != nil {
return nil, errors.Wrap(err, "failed to create a logger")
}
}
if c.systemMessagesTranslations == nil {
c.systemMessagesTranslations = defaultSystemMessagesTranslations
}
// Configure the database.
database := c.db
if c.db == nil && c.dbConfig == (dbConfig{}) {
return nil, errors.New("database instance or database path needs to be provided")
}
if c.db == nil {
logger.Info("opening a database", zap.String("dbPath", c.dbConfig.dbPath))
var err error
database, err = appdatabase.InitializeDB(c.dbConfig.dbPath, c.dbConfig.dbKey)
if err != nil {
return nil, errors.Wrap(err, "failed to initialize database from the db config")
}
}
// Apply any post database creation changes to the database
c.db = database
for _, opt := range c.afterDbCreatedHooks {
if err := opt(&c); err != nil {
return nil, err
}
}
// Apply migrations for all components.
err := sqlite.Migrate(database)
if err != nil {
return nil, errors.Wrap(err, "failed to apply migrations")
}
// Initialize transport layer.
var transp *transport.Transport
if waku, err := node.GetWaku(nil); err == nil && waku != nil {
transp, err = transport.NewTransport(
waku,
identity,
database,
"waku_keys",
nil,
c.envelopesMonitorConfig,
logger,
)
if err != nil {
return nil, errors.Wrap(err, "failed to create Transport")
}
} else {
logger.Info("failed to find Waku service; trying WakuV2", zap.Error(err))
wakuV2, err := node.GetWakuV2(nil)
if err != nil || wakuV2 == nil {
return nil, errors.Wrap(err, "failed to find Whisper and Waku V1/V2 services")
}
transp, err = transport.NewTransport(
wakuV2,
identity,
database,
"wakuv2_keys",
nil,
c.envelopesMonitorConfig,
logger,
)
if err != nil {
return nil, errors.Wrap(err, "failed to create Transport")
}
}
// Initialize encryption layer.
encryptionProtocol := encryption.New(
database,
installationID,
logger,
)
sender, err := common.NewMessageSender(
identity,
database,
encryptionProtocol,
transp,
logger,
c.featureFlags,
)
if err != nil {
return nil, errors.Wrap(err, "failed to create messageSender")
}
// Initialise anon metrics client
var anonMetricsClient *anonmetrics.Client
if c.anonMetricsClientConfig != nil &&
c.anonMetricsClientConfig.ShouldSend &&
c.anonMetricsClientConfig.Active == anonmetrics.ActiveClientPhrase {
anonMetricsClient = anonmetrics.NewClient(sender)
anonMetricsClient.Config = c.anonMetricsClientConfig
anonMetricsClient.Identity = identity
anonMetricsClient.DB = appmetrics.NewDB(database)
anonMetricsClient.Logger = logger
}
// Initialise anon metrics server
var anonMetricsServer *anonmetrics.Server
if c.anonMetricsServerConfig != nil &&
c.anonMetricsServerConfig.Enabled &&
c.anonMetricsServerConfig.Active == anonmetrics.ActiveServerPhrase {
server, err := anonmetrics.NewServer(c.anonMetricsServerConfig.PostgresURI)
if err != nil {
return nil, errors.Wrap(err, "failed to create anonmetrics.Server")
}
anonMetricsServer = server
anonMetricsServer.Config = c.anonMetricsServerConfig
anonMetricsServer.Logger = logger
}
// Initialize push notification server
var pushNotificationServer *pushnotificationserver.Server
if c.pushNotificationServerConfig != nil && c.pushNotificationServerConfig.Enabled {
c.pushNotificationServerConfig.Identity = identity
pushNotificationServerPersistence := pushnotificationserver.NewSQLitePersistence(database)
pushNotificationServer = pushnotificationserver.New(c.pushNotificationServerConfig, pushNotificationServerPersistence, sender)
}
// Initialize push notification client
pushNotificationClientPersistence := pushnotificationclient.NewPersistence(database)
pushNotificationClientConfig := c.pushNotificationClientConfig
if pushNotificationClientConfig == nil {
pushNotificationClientConfig = &pushnotificationclient.Config{}
}
sqlitePersistence := NewSQLitePersistence(database)
// Overriding until we handle different identities
pushNotificationClientConfig.Identity = identity
pushNotificationClientConfig.Logger = logger
pushNotificationClientConfig.InstallationID = installationID
pushNotificationClient := pushnotificationclient.New(pushNotificationClientPersistence, pushNotificationClientConfig, sender, sqlitePersistence)
ensVerifier := ens.New(node, logger, transp, database, c.verifyENSURL, c.verifyENSContractAddress)
communitiesManager, err := communities.NewManager(&identity.PublicKey, database, logger, ensVerifier)
if err != nil {
return nil, err
}
settings := accounts.NewDB(database)
messenger = &Messenger{
config: &c,
node: node,
identity: identity,
persistence: sqlitePersistence,
transport: transp,
encryptor: encryptionProtocol,
sender: sender,
anonMetricsClient: anonMetricsClient,
anonMetricsServer: anonMetricsServer,
pushNotificationClient: pushNotificationClient,
pushNotificationServer: pushNotificationServer,
communitiesManager: communitiesManager,
ensVerifier: ensVerifier,
featureFlags: c.featureFlags,
systemMessagesTranslations: c.systemMessagesTranslations,
allChats: new(chatMap),
allContacts: new(contactMap),
allInstallations: new(installationMap),
installationID: installationID,
modifiedInstallations: new(stringBoolMap),
verifyTransactionClient: c.verifyTransactionClient,
database: database,
multiAccounts: c.multiAccount,
settings: settings,
mailserversDatabase: c.mailserversDatabase,
account: c.account,
quit: make(chan struct{}),
requestedCommunities: make(map[string]*transport.Filter),
shutdownTasks: []func() error{
ensVerifier.Stop,
pushNotificationClient.Stop,
communitiesManager.Stop,
encryptionProtocol.Stop,
transp.ResetFilters,
transp.Stop,
func() error { sender.Stop(); return nil },
// Currently this often fails, seems like it's safe to ignore them
// https://github.com/uber-go/zap/issues/328
func() error { _ = logger.Sync; return nil },
database.Close,
},
logger: logger,
}
if anonMetricsClient != nil {
messenger.shutdownTasks = append(messenger.shutdownTasks, anonMetricsClient.Stop)
}
if anonMetricsServer != nil {
messenger.shutdownTasks = append(messenger.shutdownTasks, anonMetricsServer.Stop)
}
if c.envelopesMonitorConfig != nil {
interceptor := EnvelopeEventsInterceptor{c.envelopesMonitorConfig.EnvelopeEventsHandler, messenger}
err := messenger.transport.SetEnvelopeEventsHandler(interceptor)
if err != nil {
logger.Info("Unable to set envelopes event handler", zap.Error(err))
}
}
return messenger, nil
}
func (m *Messenger) processSentMessages(ids []string) error {
for _, id := range ids {
rawMessage, err := m.persistence.RawMessageByID(id)
if err != nil {
return errors.Wrapf(err, "Can't get raw message with id %v", id)
}
rawMessage.Sent = true
err = m.persistence.SaveRawMessage(rawMessage)
if err != nil {
return errors.Wrapf(err, "Can't save raw message marked as sent")
}
}
return nil
}
func shouldResendEmojiReaction(message *common.RawMessage, t common.TimeSource) (bool, error) {
if message.MessageType != protobuf.ApplicationMetadataMessage_EMOJI_REACTION {
return false, errors.New("Should resend only emoji reactions")
}
if message.Sent {
return false, errors.New("Should resend only non-sent messages")
}
if message.SendCount > emojiResendMaxCount {
return false, nil
}
//exponential backoff depends on how many attempts to send message already made
backoff := uint64(math.Pow(2, float64(message.SendCount-1))) * emojiResendMinDelay * uint64(time.Second)
backoffElapsed := t.GetCurrentTime() > (message.LastSent + backoff)
return backoffElapsed, nil
}
func (m *Messenger) resendExpiredEmojiReactions() error {
ids, err := m.persistence.ExpiredEmojiReactionsIDs(emojiResendMaxCount)
if err != nil {
return errors.Wrapf(err, "Can't get expired reactions from db")
}
for _, id := range ids {
rawMessage, err := m.persistence.RawMessageByID(id)
if err != nil {
return errors.Wrapf(err, "Can't get raw message with id %v", id)
}
if ok, err := shouldResendEmojiReaction(rawMessage, m.getTimesource()); ok {
err = m.persistence.SaveRawMessage(rawMessage)
if err != nil {
return errors.Wrapf(err, "Can't save raw message marked as non-expired")
}
err = m.reSendRawMessage(context.Background(), rawMessage.ID)
if err != nil {
return errors.Wrapf(err, "Can't resend expired message with id %v", rawMessage.ID)
}
} else {
return err
}
}
return nil
}
func (m *Messenger) Start() (*MessengerResponse, error) {
m.logger.Info("starting messenger", zap.String("identity", types.EncodeHex(crypto.FromECDSAPub(&m.identity.PublicKey))))
// Start push notification server
if m.pushNotificationServer != nil {
if err := m.pushNotificationServer.Start(); err != nil {
return nil, err
}
}
// Start push notification client
if m.pushNotificationClient != nil {
m.handlePushNotificationClientRegistrations(m.pushNotificationClient.SubscribeToRegistrations())
if err := m.pushNotificationClient.Start(); err != nil {
return nil, err
}
}
// Start anonymous metrics client
if m.anonMetricsClient != nil {
if err := m.anonMetricsClient.Start(); err != nil {
return nil, err
}
}
ensSubscription := m.ensVerifier.Subscribe()
// Subscrbe
if err := m.ensVerifier.Start(); err != nil {
return nil, err
}
if err := m.communitiesManager.Start(); err != nil {
return nil, err
}
// set shared secret handles
m.sender.SetHandleSharedSecrets(m.handleSharedSecrets)
subscriptions, err := m.encryptor.Start(m.identity)
if err != nil {
return nil, err
}
// handle stored shared secrets
err = m.handleSharedSecrets(subscriptions.SharedSecrets)
if err != nil {
return nil, err
}
m.handleEncryptionLayerSubscriptions(subscriptions)
m.handleCommunitiesSubscription(m.communitiesManager.Subscribe())
m.handleConnectionChange(m.online())
m.handleENSVerificationSubscription(ensSubscription)
m.watchConnectionChange()
m.watchExpiredEmojis()
m.watchIdentityImageChanges()
m.broadcastLatestUserStatus()
if err := m.cleanTopics(); err != nil {
return nil, err
}
response := &MessengerResponse{}
if m.mailserversDatabase != nil {
mailservers, err := m.mailserversDatabase.Mailservers()
if err != nil {
return nil, err
}
response.Mailservers = mailservers
}
return response, nil
}
// cleanTopics remove any topic that does not have a Listen flag set
func (m *Messenger) cleanTopics() error {
if m.mailserversDatabase == nil {
return nil
}
var filters []*transport.Filter
for _, f := range m.transport.Filters() {
if f.Listen && !f.Ephemeral {
filters = append(filters, f)
}
}
m.logger.Debug("keeping topics", zap.Any("filters", filters))
return m.mailserversDatabase.SetTopics(filters)
}
// handle connection change is called each time we go from offline/online or viceversa
func (m *Messenger) handleConnectionChange(online bool) {
if online {
if m.pushNotificationClient != nil {
m.pushNotificationClient.Online()
}
if m.shouldPublishContactCode {
if err := m.publishContactCode(); err != nil {
m.logger.Error("could not publish on contact code", zap.Error(err))
return
}
m.shouldPublishContactCode = false
}
} else {
if m.pushNotificationClient != nil {
m.pushNotificationClient.Offline()
}
}
m.ensVerifier.SetOnline(online)
}
func (m *Messenger) online() bool {
switch m.transport.WakuVersion() {
case 2:
return m.transport.PeerCount() > 0
default:
return m.node.PeersCount() > 0
}
}
func (m *Messenger) buildContactCodeAdvertisement() (*protobuf.ContactCodeAdvertisement, error) {
if m.pushNotificationClient == nil || !m.pushNotificationClient.Enabled() {
return nil, nil
}
m.logger.Debug("adding push notification info to contact code bundle")
info, err := m.pushNotificationClient.MyPushNotificationQueryInfo()
if err != nil {
return nil, err
}
if len(info) == 0 {
return nil, nil
}
return &protobuf.ContactCodeAdvertisement{
PushNotificationInfo: info,
}, nil
}
// publishContactCode sends a public message wrapped in the encryption
// layer, which will propagate our bundle
func (m *Messenger) publishContactCode() error {
var payload []byte
m.logger.Debug("sending contact code")
contactCodeAdvertisement, err := m.buildContactCodeAdvertisement()
if err != nil {
m.logger.Error("could not build contact code advertisement", zap.Error(err))
}
if contactCodeAdvertisement == nil {
contactCodeAdvertisement = &protobuf.ContactCodeAdvertisement{}
}
err = m.attachChatIdentity(contactCodeAdvertisement)
if err != nil {
return err
}
if contactCodeAdvertisement.ChatIdentity != nil {
m.logger.Debug("attached chat identity", zap.Int("images len", len(contactCodeAdvertisement.ChatIdentity.Images)))
} else {
m.logger.Debug("no attached chat identity")
}
payload, err = proto.Marshal(contactCodeAdvertisement)
if err != nil {
return err
}
contactCodeTopic := transport.ContactCodeTopic(&m.identity.PublicKey)
rawMessage := common.RawMessage{
LocalChatID: contactCodeTopic,
MessageType: protobuf.ApplicationMetadataMessage_CONTACT_CODE_ADVERTISEMENT,
Payload: payload,
}
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
_, err = m.sender.SendPublic(ctx, contactCodeTopic, rawMessage)
if err != nil {
m.logger.Warn("failed to send a contact code", zap.Error(err))
}
m.logger.Debug("contact code sent")
return err
}
// contactCodeAdvertisement attaches a protobuf.ChatIdentity to the given protobuf.ContactCodeAdvertisement,
// if the `shouldPublish` conditions are met
func (m *Messenger) attachChatIdentity(cca *protobuf.ContactCodeAdvertisement) error {
contactCodeTopic := transport.ContactCodeTopic(&m.identity.PublicKey)
shouldPublish, err := m.shouldPublishChatIdentity(contactCodeTopic)
if err != nil {
return err
}
if !shouldPublish {
return nil
}
cca.ChatIdentity, err = m.createChatIdentity(privateChat)
if err != nil {
return err
}
img, err := m.multiAccounts.GetIdentityImage(m.account.KeyUID, userimage.SmallDimName)
if err != nil {
return err
}
if img == nil {
return errors.New("could not find image")
}
err = m.persistence.SaveWhenChatIdentityLastPublished(contactCodeTopic, img.Hash())
if err != nil {
return err
}
return nil
}
// handleStandaloneChatIdentity sends a standalone ChatIdentity message to a public or private channel if the publish criteria is met
func (m *Messenger) handleStandaloneChatIdentity(chat *Chat) error {
if chat.ChatType != ChatTypePublic && chat.ChatType != ChatTypeOneToOne {
return nil
}
shouldPublishChatIdentity, err := m.shouldPublishChatIdentity(chat.ID)
if err != nil {
return err
}
if !shouldPublishChatIdentity {
return nil
}
ci, err := m.createChatIdentity(publicChat)
if err != nil {
return err
}
payload, err := proto.Marshal(ci)
if err != nil {
return err
}
rawMessage := common.RawMessage{
LocalChatID: chat.ID,
MessageType: protobuf.ApplicationMetadataMessage_CHAT_IDENTITY,
Payload: payload,
}
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
if chat.ChatType == ChatTypePublic {
_, err = m.sender.SendPublic(ctx, chat.ID, rawMessage)
if err != nil {
return err
}
} else {
pk, err := chat.PublicKey()
if err != nil {
return err
}
_, err = m.sender.SendPrivate(ctx, pk, &rawMessage)
if err != nil {
return err
}
}
img, err := m.multiAccounts.GetIdentityImage(m.account.KeyUID, userimage.SmallDimName)
if err != nil {
return err
}
if img == nil {
return errors.New("could not find image")
}
err = m.persistence.SaveWhenChatIdentityLastPublished(chat.ID, img.Hash())
if err != nil {
return err
}
return nil
}
// shouldPublishChatIdentity returns true if the last time the ChatIdentity was attached was more than 24 hours ago
func (m *Messenger) shouldPublishChatIdentity(chatID string) (bool, error) {
if m.account == nil {
return false, nil
}
// Check we have at least one image
img, err := m.multiAccounts.GetIdentityImage(m.account.KeyUID, userimage.SmallDimName)
if err != nil {
return false, err
}
if img == nil {
return false, nil
}
lp, hash, err := m.persistence.GetWhenChatIdentityLastPublished(chatID)
if err != nil {
return false, err
}
if !bytes.Equal(hash, img.Hash()) {
return true, nil
}
// Note: If Alice does not add bob as a contact she will not update her contact code with images
return lp == 0 || time.Now().Unix()-lp > 24*60*60, nil
}
// createChatIdentity creates a context based protobuf.ChatIdentity.
// context 'public-chat' will attach only the 'thumbnail' IdentityImage
// context 'private-chat' will attach all IdentityImage
func (m *Messenger) createChatIdentity(context chatContext) (*protobuf.ChatIdentity, error) {
m.logger.Info(fmt.Sprintf("account keyUID '%s'", m.account.KeyUID))
m.logger.Info(fmt.Sprintf("context '%s'", context))
ci := &protobuf.ChatIdentity{
Clock: m.transport.GetCurrentTime(),
EnsName: "", // TODO add ENS name handling to dedicate PR
}
err := m.attachIdentityImagesToChatIdentity(context, ci)
if err != nil {
return nil, err
}
return ci, nil
}
// adaptIdentityImageToProtobuf Adapts a images.IdentityImage to protobuf.IdentityImage
func (m *Messenger) adaptIdentityImageToProtobuf(img *userimage.IdentityImage) *protobuf.IdentityImage {
return &protobuf.IdentityImage{
Payload: img.Payload,
SourceType: protobuf.IdentityImage_RAW_PAYLOAD, // TODO add ENS avatar handling to dedicated PR
ImageType: images.ImageType(img.Payload),
}
}
func (m *Messenger) attachIdentityImagesToChatIdentity(context chatContext, ci *protobuf.ChatIdentity) error {
s, err := m.getSettings()
if err != nil {
return err
}
if s.ProfilePicturesShowTo == accounts.ProfilePicturesShowToNone {
m.logger.Info(fmt.Sprintf("settings.ProfilePicturesShowTo is set to '%d', skipping attaching IdentityImages", s.ProfilePicturesShowTo))
return nil
}
ciis := make(map[string]*protobuf.IdentityImage)
switch context {
case publicChat:
m.logger.Info(fmt.Sprintf("handling %s ChatIdentity", context))
img, err := m.multiAccounts.GetIdentityImage(m.account.KeyUID, userimage.SmallDimName)
if err != nil {
return err
}
m.logger.Debug(fmt.Sprintf("%s images.IdentityImage '%s'", context, spew.Sdump(img)))
ciis[userimage.SmallDimName] = m.adaptIdentityImageToProtobuf(img)
m.logger.Debug(fmt.Sprintf("%s protobuf.IdentityImage '%s'", context, spew.Sdump(ciis)))
ci.Images = ciis
case privateChat:
m.logger.Info(fmt.Sprintf("handling %s ChatIdentity", context))
imgs, err := m.multiAccounts.GetIdentityImages(m.account.KeyUID)
if err != nil {
return err
}
m.logger.Debug(fmt.Sprintf("%s images.IdentityImage '%s'", context, spew.Sdump(imgs)))
for _, img := range imgs {
ciis[img.Name] = m.adaptIdentityImageToProtobuf(img)
}
m.logger.Debug(fmt.Sprintf("%s protobuf.IdentityImage '%s'", context, spew.Sdump(ciis)))
ci.Images = ciis
default:
return fmt.Errorf("unknown ChatIdentity context '%s'", context)
}
if s.ProfilePicturesShowTo == accounts.ProfilePicturesShowToContactsOnly {
err := EncryptIdentityImagesWithContactPubKeys(ci.Images, m)
if err != nil {
return err
}
}
return nil
}
// handleSharedSecrets process the negotiated secrets received from the encryption layer
func (m *Messenger) handleSharedSecrets(secrets []*sharedsecret.Secret) error {
for _, secret := range secrets {
fSecret := types.NegotiatedSecret{
PublicKey: secret.Identity,
Key: secret.Key,
}
_, err := m.transport.ProcessNegotiatedSecret(fSecret)
if err != nil {
return err
}
}
return nil
}
// handleInstallations adds the installations in the installations map
func (m *Messenger) handleInstallations(installations []*multidevice.Installation) {
for _, installation := range installations {
if installation.Identity == contactIDFromPublicKey(&m.identity.PublicKey) {
if _, ok := m.allInstallations.Load(installation.ID); !ok {
m.allInstallations.Store(installation.ID, installation)
m.modifiedInstallations.Store(installation.ID, true)
}
}
}
}
// handleEncryptionLayerSubscriptions handles events from the encryption layer
func (m *Messenger) handleEncryptionLayerSubscriptions(subscriptions *encryption.Subscriptions) {
go func() {
for {
select {
case <-subscriptions.SendContactCode:
if err := m.publishContactCode(); err != nil {
m.logger.Error("failed to publish contact code", zap.Error(err))
}
// we also piggy-back to clean up cached messages
if err := m.transport.CleanMessagesProcessed(m.getTimesource().GetCurrentTime() - messageCacheIntervalMs); err != nil {
m.logger.Error("failed to clean processed messages", zap.Error(err))
}
case <-subscriptions.Quit:
m.logger.Debug("quitting encryption subscription loop")
return
}
}
}()
}
func (m *Messenger) handleENSVerified(records []*ens.VerificationRecord) {
var contacts []*Contact
for _, record := range records {
m.logger.Info("handling record", zap.Any("record", record))
contact, ok := m.allContacts.Load(record.PublicKey)
if !ok {
m.logger.Info("contact not found")
continue
}
contact.ENSVerified = record.Verified
contact.Name = record.Name
contacts = append(contacts, contact)
}
m.logger.Info("handled records", zap.Any("contacts", contacts))
if len(contacts) != 0 {
if err := m.persistence.SaveContacts(contacts); err != nil {
m.logger.Error("failed to save contacts", zap.Error(err))
return
}
}
m.logger.Info("calling on contacts")
if m.config.onContactENSVerified != nil {
m.logger.Info("called on contacts")
response := &MessengerResponse{Contacts: contacts}
m.config.onContactENSVerified(response)
}
}
func (m *Messenger) handleENSVerificationSubscription(c chan []*ens.VerificationRecord) {
go func() {
for {
select {
case records, more := <-c:
if !more {
m.logger.Info("No more records, quitting")
return
}
if len(records) != 0 {
m.logger.Info("handling records", zap.Any("records", records))
m.handleENSVerified(records)
}
case <-m.quit:
return
}
}
}()
}
// watchConnectionChange checks the connection status and call handleConnectionChange when this changes
func (m *Messenger) watchConnectionChange() {
m.logger.Debug("watching connection changes")
state := m.online()
go func() {
for {
select {
case <-time.After(200 * time.Millisecond):
newState := m.online()
if state != newState {
state = newState
m.logger.Debug("connection changed", zap.Bool("online", state))
m.handleConnectionChange(state)
}
case <-m.quit:
return
}
}
}()
}
// watchExpiredEmojis regularly checks for expired emojis and invoke their resending
func (m *Messenger) watchExpiredEmojis() {
m.logger.Debug("watching expired emojis")
go func() {
for {
select {
case <-time.After(time.Second):
if m.online() {
err := m.resendExpiredEmojiReactions()
if err != nil {
m.logger.Debug("Error when resending expired emoji reactions", zap.Error(err))
}
}
case <-m.quit:
return
}
}