package protocol import ( "context" "crypto/ecdsa" "database/sql" "encoding/hex" "fmt" "sync" "time" "github.com/status-im/status-go/signal" "github.com/pkg/errors" "go.uber.org/zap" "github.com/status-im/status-go/eth-node/crypto" "github.com/status-im/status-go/eth-node/types" "github.com/status-im/status-go/images" "github.com/status-im/status-go/multiaccounts/accounts" "github.com/status-im/status-go/multiaccounts/settings" "github.com/status-im/status-go/protocol/common" "github.com/status-im/status-go/protocol/communities" "github.com/status-im/status-go/protocol/encryption/multidevice" "github.com/status-im/status-go/protocol/identity" "github.com/status-im/status-go/protocol/protobuf" "github.com/status-im/status-go/protocol/requests" "github.com/status-im/status-go/protocol/transport" v1protocol "github.com/status-im/status-go/protocol/v1" "github.com/status-im/status-go/protocol/verification" ) const ( transactionRequestDeclinedMessage = "Transaction request declined" requestAddressForTransactionAcceptedMessage = "Request address for transaction accepted" requestAddressForTransactionDeclinedMessage = "Request address for transaction declined" ) var ( ErrMessageNotAllowed = errors.New("message from a non-contact") ErrMessageForWrongChatType = errors.New("message for the wrong chat type") ErrNotWalletAccount = errors.New("an account is not a wallet account") ErrWalletAccountNotSupportedForMobileApp = errors.New("handling account is not supported for mobile app") ErrTryingToStoreOldWalletAccount = errors.New("trying to store an old wallet account") ErrSomeFieldsMissingForWalletAccount = errors.New("some fields are missing for wallet account") ) // HandleMembershipUpdate updates a Chat instance according to the membership updates. // It retrieves chat, if exists, and merges membership updates from the message. // Finally, the Chat is updated with the new group events. func (m *Messenger) HandleMembershipUpdate(messageState *ReceivedMessageState, chat *Chat, rawMembershipUpdate protobuf.MembershipUpdateMessage, translations *systemMessageTranslationsMap) error { var group *v1protocol.Group var err error logger := m.logger.With(zap.String("site", "HandleMembershipUpdate")) message, err := v1protocol.MembershipUpdateMessageFromProtobuf(&rawMembershipUpdate) if err != nil { return err } if err := ValidateMembershipUpdateMessage(message, messageState.Timesource.GetCurrentTime()); err != nil { logger.Warn("failed to validate message", zap.Error(err)) return err } senderID := messageState.CurrentMessageState.Contact.ID allowed, err := m.isMessageAllowedFrom(senderID, chat) if err != nil { return err } if !allowed { return ErrMessageNotAllowed } //if chat.InvitationAdmin exists means we are waiting for invitation request approvement, and in that case //we need to create a new chat instance like we don't have a chat and just use a regular invitation flow waitingForApproval := chat != nil && len(chat.InvitationAdmin) > 0 ourKey := contactIDFromPublicKey(&m.identity.PublicKey) isActive := messageState.CurrentMessageState.Contact.added() || messageState.CurrentMessageState.Contact.ID == ourKey || waitingForApproval showPushNotification := isActive && messageState.CurrentMessageState.Contact.ID != ourKey // wasUserAdded indicates whether the user has been added to the group with this update wasUserAdded := false if chat == nil || waitingForApproval { if len(message.Events) == 0 { return errors.New("can't create new group chat without events") } //approve invitations if waitingForApproval { groupChatInvitation := &GroupChatInvitation{ GroupChatInvitation: protobuf.GroupChatInvitation{ ChatId: message.ChatID, }, From: types.EncodeHex(crypto.FromECDSAPub(&m.identity.PublicKey)), } groupChatInvitation, err = m.persistence.InvitationByID(groupChatInvitation.ID()) if err != nil && err != common.ErrRecordNotFound { return err } if groupChatInvitation != nil { groupChatInvitation.State = protobuf.GroupChatInvitation_APPROVED err := m.persistence.SaveInvitation(groupChatInvitation) if err != nil { return err } messageState.GroupChatInvitations[groupChatInvitation.ID()] = groupChatInvitation } } group, err = v1protocol.NewGroupWithEvents(message.ChatID, message.Events) if err != nil { return err } // A new chat must contain us if !group.IsMember(ourKey) { return errors.New("can't create a new group chat without us being a member") } // A new chat always adds us wasUserAdded = true newChat := CreateGroupChat(messageState.Timesource) // We set group chat inactive and create a notification instead // unless is coming from us or a contact or were waiting for approval. // Also, as message MEMBER_JOINED may come from member(not creator, not our contact) // reach earlier than CHAT_CREATED from creator, we need check if creator is our contact newChat.Active = isActive || m.checkIfCreatorIsOurContact(group) newChat.ReceivedInvitationAdmin = senderID chat = &newChat chat.updateChatFromGroupMembershipChanges(group) if err != nil { return errors.Wrap(err, "failed to get group creator") } } else { existingGroup, err := newProtocolGroupFromChat(chat) if err != nil { return errors.Wrap(err, "failed to create a Group from Chat") } updateGroup, err := v1protocol.NewGroupWithEvents(message.ChatID, message.Events) if err != nil { return errors.Wrap(err, "invalid membership update") } merged := v1protocol.MergeMembershipUpdateEvents(existingGroup.Events(), updateGroup.Events()) group, err = v1protocol.NewGroupWithEvents(chat.ID, merged) if err != nil { return errors.Wrap(err, "failed to create a group with new membership updates") } chat.updateChatFromGroupMembershipChanges(group) wasUserAdded = !existingGroup.IsMember(ourKey) && group.IsMember(ourKey) // Reactivate deleted group chat on re-invite from contact chat.Active = chat.Active || (isActive && wasUserAdded) // Show push notifications when our key is added to members list and chat is Active showPushNotification = showPushNotification && wasUserAdded } maxClockVal := uint64(0) for _, event := range group.Events() { if event.ClockValue > maxClockVal { maxClockVal = event.ClockValue } } if chat.LastClockValue < maxClockVal { chat.LastClockValue = maxClockVal } // Only create a message notification when the user is added, not when removed if !chat.Active && wasUserAdded { chat.Highlight = true m.createMessageNotification(chat, messageState) } profilePicturesVisibility, err := m.settings.GetProfilePicturesVisibility() if err != nil { return errors.Wrap(err, "failed to get profilePicturesVisibility setting") } if showPushNotification { // chat is highlighted for new group invites or group re-invites chat.Highlight = true messageState.Response.AddNotification(NewPrivateGroupInviteNotification(chat.ID, chat, messageState.CurrentMessageState.Contact, profilePicturesVisibility)) } systemMessages := buildSystemMessages(message.Events, translations) for _, message := range systemMessages { messageID := message.ID exists, err := m.messageExists(messageID, messageState.ExistingMessagesMap) if err != nil { m.logger.Warn("failed to check message exists", zap.Error(err)) } if exists { continue } messageState.Response.AddMessage(message) } messageState.Response.AddChat(chat) // Store in chats map as it might be a new one messageState.AllChats.Store(chat.ID, chat) // explicit join has been removed, mimic auto-join for backward compatibility // no all cases are covered, e.g. if added to a group by non-contact autoJoin := chat.Active && wasUserAdded if autoJoin || waitingForApproval { _, err = m.ConfirmJoiningGroup(context.Background(), chat.ID) if err != nil { return err } } if message.Message != nil { messageState.CurrentMessageState.Message = *message.Message return m.HandleChatMessage(messageState) } else if message.EmojiReaction != nil { return m.HandleEmojiReaction(messageState, *message.EmojiReaction) } return nil } func (m *Messenger) checkIfCreatorIsOurContact(group *v1protocol.Group) bool { creator, err := group.Creator() if err == nil { contact, _ := m.allContacts.Load(creator) return contact != nil && contact.mutual() } m.logger.Warn("failed to get creator from group", zap.String("group name", group.Name()), zap.String("group chat id", group.ChatID()), zap.Error(err)) return false } func (m *Messenger) createMessageNotification(chat *Chat, messageState *ReceivedMessageState) { var notificationType ActivityCenterType if chat.OneToOne() { notificationType = ActivityCenterNotificationTypeNewOneToOne } else { notificationType = ActivityCenterNotificationTypeNewPrivateGroupChat } notification := &ActivityCenterNotification{ ID: types.FromHex(chat.ID), Name: chat.Name, LastMessage: chat.LastMessage, Type: notificationType, Author: messageState.CurrentMessageState.Contact.ID, Timestamp: messageState.CurrentMessageState.WhisperTimestamp, ChatID: chat.ID, CommunityID: chat.CommunityID, } err := m.addActivityCenterNotification(messageState.Response, notification) if err != nil { m.logger.Warn("failed to create activity center notification", zap.Error(err)) } } func (m *Messenger) PendingNotificationContactRequest(contactID string) (*ActivityCenterNotification, error) { return m.persistence.ActiveContactRequestNotification(contactID) } func (m *Messenger) createContactRequestForContactUpdate(contact *Contact, messageState *ReceivedMessageState) (*common.Message, error) { contactRequest, err := m.generateContactRequest( messageState.CurrentMessageState.Message.Clock, messageState.CurrentMessageState.WhisperTimestamp, contact, "Please add me to your contacts", false, ) if err != nil { return nil, err } contactRequest.ID = defaultContactRequestID(contact.ID) // save this message messageState.Response.AddMessage(contactRequest) err = m.persistence.SaveMessages([]*common.Message{contactRequest}) if err != nil { return nil, err } return contactRequest, nil } func (m *Messenger) createIncomingContactRequestNotification(contact *Contact, messageState *ReceivedMessageState, contactRequest *common.Message, createNewNotification bool) error { if contactRequest.ContactRequestState == common.ContactRequestStateAccepted { // Pull one from the db if there notification, err := m.persistence.GetActivityCenterNotificationByID(types.FromHex(contactRequest.ID)) if err != nil { return err } if notification != nil { notification.Name = contact.PrimaryName() notification.Message = contactRequest notification.Read = true notification.Accepted = true notification.Dismissed = false err = m.persistence.SaveActivityCenterNotification(notification) if err != nil { return err } messageState.Response.AddMessage(contactRequest) messageState.Response.AddActivityCenterNotification(notification) } return nil } if !createNewNotification { return nil } notification := &ActivityCenterNotification{ ID: types.FromHex(contactRequest.ID), Name: contact.PrimaryName(), Message: contactRequest, Type: ActivityCenterNotificationTypeContactRequest, Author: messageState.CurrentMessageState.Contact.ID, Timestamp: messageState.CurrentMessageState.WhisperTimestamp, ChatID: contact.ID, Read: contactRequest.ContactRequestState == common.ContactRequestStateAccepted || contactRequest.ContactRequestState == common.ContactRequestStateDismissed, Accepted: contactRequest.ContactRequestState == common.ContactRequestStateAccepted, Dismissed: contactRequest.ContactRequestState == common.ContactRequestStateDismissed, } return m.addActivityCenterNotification(messageState.Response, notification) } func (m *Messenger) handleCommandMessage(state *ReceivedMessageState, message *common.Message) error { message.ID = state.CurrentMessageState.MessageID message.From = state.CurrentMessageState.Contact.ID message.Alias = state.CurrentMessageState.Contact.Alias message.SigPubKey = state.CurrentMessageState.PublicKey message.Identicon = state.CurrentMessageState.Contact.Identicon message.WhisperTimestamp = state.CurrentMessageState.WhisperTimestamp if err := message.PrepareContent(common.PubkeyToHex(&m.identity.PublicKey)); err != nil { return fmt.Errorf("failed to prepare content: %v", err) } chat, err := m.matchChatEntity(message) if err != nil { return err } allowed, err := m.isMessageAllowedFrom(state.CurrentMessageState.Contact.ID, chat) if err != nil { return err } if !allowed { return ErrMessageNotAllowed } // If deleted-at is greater, ignore message if chat.DeletedAtClockValue >= message.Clock { return nil } // Set the LocalChatID for the message message.LocalChatID = chat.ID if c, ok := state.AllChats.Load(chat.ID); ok { chat = c } // Set the LocalChatID for the message message.LocalChatID = chat.ID // Increase unviewed count if !common.IsPubKeyEqual(message.SigPubKey, &m.identity.PublicKey) { m.updateUnviewedCounts(chat, message.Mentioned || message.Replied) message.OutgoingStatus = "" } else { // Our own message, mark as sent message.OutgoingStatus = common.OutgoingStatusSent } err = chat.UpdateFromMessage(message, state.Timesource) if err != nil { return err } if !chat.Active { m.createMessageNotification(chat, state) } // Add to response state.Response.AddChat(chat) if message != nil { message.New = true state.Response.AddMessage(message) } // Set in the modified maps chat state.AllChats.Store(chat.ID, chat) return nil } func (m *Messenger) HandleSyncInstallationContact(state *ReceivedMessageState, message protobuf.SyncInstallationContactV2) error { removedOrBlocked := message.Removed || message.Blocked chat, ok := state.AllChats.Load(message.Id) if !ok && (message.Added || message.Muted) && !removedOrBlocked { pubKey, err := common.HexToPubkey(message.Id) if err != nil { return err } chat = OneToOneFromPublicKey(pubKey, state.Timesource) // We don't want to show the chat to the user chat.Active = false } contact, ok := state.AllContacts.Load(message.Id) if !ok { if message.Removed { // Nothing to do in case if contact doesn't exist return nil } var err error contact, err = buildContactFromPkString(message.Id) if err != nil { return err } } if message.ContactRequestRemoteClock != 0 || message.ContactRequestLocalClock != 0 { // Some local action about contact requests were performed, // process them contact.ProcessSyncContactRequestState( ContactRequestState(message.ContactRequestRemoteState), uint64(message.ContactRequestRemoteClock), ContactRequestState(message.ContactRequestLocalState), uint64(message.ContactRequestLocalClock)) state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) } else if message.Added || message.HasAddedUs { // NOTE(cammellos): this is for handling backward compatibility, old clients // won't propagate ContactRequestRemoteClock or ContactRequestLocalClock if message.Added && contact.LastUpdatedLocally < message.LastUpdatedLocally { contact.ContactRequestSent(message.LastUpdatedLocally) } if message.HasAddedUs && contact.LastUpdated < message.LastUpdated { contact.ContactRequestReceived(message.LastUpdated) } if message.Removed && contact.LastUpdatedLocally < message.LastUpdatedLocally { err := m.removeContact(context.Background(), state.Response, contact.ID, false) if err != nil { return err } } } // Sync last updated field // We don't set `LastUpdated`, since that would cause some issues // as `LastUpdated` tracks both display name & picture. // The case where it would break is as follow: // 1) User A pairs A1 with device A2. // 2) User B publishes display name and picture with LastUpdated = 3. // 3) Device A1 receives message from step 2. // 4) Device A1 syncs with A2 (which has not received message from step 3). // 5) Device A2 saves Display name and sets LastUpdated = 3, // note that picture has not been set as it's not synced. // 6) Device A2 receives the message from 2. because LastUpdated is 3 // it will be discarded, A2 will not have B's picture. // The correct solution is to either sync profile image (expensive) // or split the clock for image/display name, so they can be synced // independently. if contact.LastUpdated < message.LastUpdated { if message.DisplayName != "" { contact.DisplayName = message.DisplayName } state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) } if contact.LastUpdatedLocally < message.LastUpdatedLocally { // NOTE(cammellos): probably is cleaner to pass a flag // to method to tell them not to sync, or factor out in different // methods contact.IsSyncing = true defer func() { contact.IsSyncing = false }() if message.EnsName != "" && contact.EnsName != message.EnsName { contact.EnsName = message.EnsName publicKey, err := contact.PublicKey() if err != nil { return err } err = m.ENSVerified(common.PubkeyToHex(publicKey), message.EnsName) if err != nil { contact.ENSVerified = false } contact.ENSVerified = true } contact.LastUpdatedLocally = message.LastUpdatedLocally contact.LocalNickname = message.LocalNickname contact.TrustStatus = verification.TrustStatus(message.TrustStatus) contact.VerificationStatus = VerificationStatus(message.VerificationStatus) _, err := m.verificationDatabase.UpsertTrustStatus(contact.ID, contact.TrustStatus, message.LastUpdatedLocally) if err != nil { return err } if message.Blocked != contact.Blocked { if message.Blocked { state.AllContacts.Store(contact.ID, contact) response, err := m.BlockContact(contact.ID) if err != nil { return err } err = state.Response.Merge(response) if err != nil { return err } } else { contact.Unblock(message.LastUpdatedLocally) } } if chat != nil && message.Muted != chat.Muted { if message.Muted { _, err := m.muteChat(chat, contact, time.Time{}) if err != nil { return err } } else { err := m.unmuteChat(chat, contact) if err != nil { return err } } state.Response.AddChat(chat) } state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) } if chat != nil { state.AllChats.Store(chat.ID, chat) } return nil } func (m *Messenger) HandleSyncProfilePictures(state *ReceivedMessageState, message protobuf.SyncProfilePictures) error { dbImages, err := m.multiAccounts.GetIdentityImages(message.KeyUid) if err != nil { return err } dbImageMap := make(map[string]*images.IdentityImage) for _, img := range dbImages { dbImageMap[img.Name] = img } idImages := make([]images.IdentityImage, len(message.Pictures)) i := 0 for _, message := range message.Pictures { dbImg := dbImageMap[message.Name] if dbImg != nil && message.Clock <= dbImg.Clock { continue } image := images.IdentityImage{ Name: message.Name, Payload: message.Payload, Width: int(message.Width), Height: int(message.Height), FileSize: int(message.FileSize), ResizeTarget: int(message.ResizeTarget), Clock: message.Clock, } idImages[i] = image i++ } if i == 0 { return nil } err = m.multiAccounts.StoreIdentityImages(message.KeyUid, idImages[:i], false) if err == nil { state.Response.IdentityImages = idImages[:i] } return err } func (m *Messenger) HandleSyncInstallationPublicChat(state *ReceivedMessageState, message protobuf.SyncInstallationPublicChat) *Chat { chatID := message.Id existingChat, ok := state.AllChats.Load(chatID) if ok && (existingChat.Active || uint32(message.GetClock()/1000) < existingChat.SyncedTo) { return nil } chat := existingChat if !ok { chat = CreatePublicChat(chatID, state.Timesource) chat.Joined = int64(message.Clock) } else { existingChat.Joined = int64(message.Clock) } state.AllChats.Store(chat.ID, chat) state.Response.AddChat(chat) return chat } func (m *Messenger) HandleSyncChatRemoved(state *ReceivedMessageState, message protobuf.SyncChatRemoved) error { chat, ok := m.allChats.Load(message.Id) if !ok { return ErrChatNotFound } if chat.Joined > int64(message.Clock) { return nil } if chat.DeletedAtClockValue > message.Clock { return nil } if chat.PrivateGroupChat() { _, err := m.leaveGroupChat(context.Background(), state.Response, message.Id, true, false) if err != nil { return err } } response, err := m.deactivateChat(message.Id, message.Clock, false, true) if err != nil { return err } return state.Response.Merge(response) } func (m *Messenger) HandleSyncChatMessagesRead(state *ReceivedMessageState, message protobuf.SyncChatMessagesRead) error { chat, ok := m.allChats.Load(message.Id) if !ok { return ErrChatNotFound } if chat.ReadMessagesAtClockValue > message.Clock { return nil } err := m.markAllRead(message.Id, message.Clock, false) if err != nil { return err } state.Response.AddChat(chat) return nil } func (m *Messenger) handlePinMessage(pinner *Contact, whisperTimestamp uint64, response *MessengerResponse, message protobuf.PinMessage) error { logger := m.logger.With(zap.String("site", "HandlePinMessage")) logger.Info("Handling pin message") publicKey, err := pinner.PublicKey() if err != nil { return err } pinMessage := &common.PinMessage{ PinMessage: message, // MessageID: message.MessageId, WhisperTimestamp: whisperTimestamp, From: pinner.ID, SigPubKey: publicKey, Identicon: pinner.Identicon, Alias: pinner.Alias, } chat, err := m.matchChatEntity(pinMessage) if err != nil { return err // matchChatEntity returns a descriptive error message } pinMessage.ID, err = generatePinMessageID(&m.identity.PublicKey, pinMessage, chat) if err != nil { return err } // If deleted-at is greater, ignore message if chat.DeletedAtClockValue >= pinMessage.Clock { return nil } // Set the LocalChatID for the message pinMessage.LocalChatID = chat.ID if c, ok := m.allChats.Load(chat.ID); ok { chat = c } // Set the LocalChatID for the message pinMessage.LocalChatID = chat.ID inserted, err := m.persistence.SavePinMessage(pinMessage) if err != nil { return err } // Nothing to do, returning if !inserted { m.logger.Info("pin message already processed") return nil } if message.Pinned { id, err := generatePinMessageNotificationID(&m.identity.PublicKey, pinMessage, chat) if err != nil { return err } message := &common.Message{ ChatMessage: protobuf.ChatMessage{ Clock: message.Clock, Timestamp: whisperTimestamp, ChatId: chat.ID, MessageType: message.MessageType, ResponseTo: message.MessageId, ContentType: protobuf.ChatMessage_SYSTEM_MESSAGE_PINNED_MESSAGE, }, WhisperTimestamp: whisperTimestamp, ID: id, LocalChatID: chat.ID, From: pinner.ID, } response.AddMessage(message) } if chat.LastClockValue < message.Clock { chat.LastClockValue = message.Clock } response.AddPinMessage(pinMessage) // Set in the modified maps chat response.AddChat(chat) m.allChats.Store(chat.ID, chat) return nil } func (m *Messenger) HandlePinMessage(state *ReceivedMessageState, message protobuf.PinMessage) error { return m.handlePinMessage(state.CurrentMessageState.Contact, state.CurrentMessageState.WhisperTimestamp, state.Response, message) } func (m *Messenger) handleAcceptContactRequest( response *MessengerResponse, contact *Contact, originalRequest *common.Message, clock uint64) (ContactRequestProcessingResponse, error) { m.logger.Debug("received contact request", zap.Uint64("clock-sent", clock), zap.Uint64("current-clock", contact.ContactRequestRemoteClock), zap.Uint64("current-state", uint64(contact.ContactRequestRemoteState))) if contact.ContactRequestRemoteClock > clock { m.logger.Debug("not handling accept since clock lower") return ContactRequestProcessingResponse{}, nil } // The contact request accepted wasn't found, a reason for this might // be that we sent a legacy contact request/contact-update, or another // device has sent it, and we haven't synchronized it if originalRequest == nil { return contact.ContactRequestAccepted(clock), nil } if originalRequest.LocalChatID != contact.ID { return ContactRequestProcessingResponse{}, errors.New("can't accept contact request not sent to user") } contact.ContactRequestAccepted(clock) originalRequest.ContactRequestState = common.ContactRequestStateAccepted err := m.persistence.SetContactRequestState(originalRequest.ID, originalRequest.ContactRequestState) if err != nil { return ContactRequestProcessingResponse{}, err } response.AddMessage(originalRequest) return ContactRequestProcessingResponse{}, nil } func (m *Messenger) handleAcceptContactRequestMessage(state *ReceivedMessageState, clock uint64, contactRequestID string, isOutgoing bool) error { request, err := m.persistence.MessageByID(contactRequestID) if err != nil && err != common.ErrRecordNotFound { return err } contact := state.CurrentMessageState.Contact processingResponse, err := m.handleAcceptContactRequest(state.Response, contact, request, clock) if err != nil { return err } // If the state has changed from non-mutual contact, to mutual contact // we want to notify the user if contact.mutual() { // We set the chat as active, this is currently the expected behavior // for mobile, it might change as we implement further the activity // center chat, _, err := m.getOneToOneAndNextClock(contact) if err != nil { return err } if chat.LastClockValue < clock { chat.LastClockValue = clock } // NOTE(cammellos): This will re-enable the chat if it was deleted, and only // after we became contact, currently seems safe, but that needs // discussing with UX. if chat.DeletedAtClockValue < clock { chat.Active = true } state.Response.AddChat(chat) state.AllChats.Store(chat.ID, chat) } if request != nil { if isOutgoing { notification := m.generateOutgoingContactRequestNotification(contact, request) err = m.addActivityCenterNotification(state.Response, notification) if err != nil { return err } } else { err = m.createIncomingContactRequestNotification(contact, state, request, processingResponse.newContactRequestReceived) } if err != nil { m.logger.Warn("could not create contact request notification", zap.Error(err)) } } state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) return nil } func (m *Messenger) HandleAcceptContactRequest(state *ReceivedMessageState, message protobuf.AcceptContactRequest, senderID string) error { err := m.handleAcceptContactRequestMessage(state, message.Clock, message.Id, false) if err != nil { m.logger.Warn("could not accept contact request", zap.Error(err)) } return nil } func (m *Messenger) handleRetractContactRequest(contact *Contact, message protobuf.RetractContactRequest) error { if contact.ID == m.myHexIdentity() { m.logger.Debug("retraction coming from us, ignoring") return nil } m.logger.Debug("handling retracted contact request", zap.Uint64("clock", message.Clock)) r := contact.ContactRequestRetracted(message.Clock, false) if !r.processed { m.logger.Debug("not handling retract since clock lower") return nil } // We remove anything that's related to this contact request err := m.persistence.HardDeleteChatContactRequestActivityCenterNotifications(contact.ID) if err != nil { return err } m.allContacts.Store(contact.ID, contact) return nil } func (m *Messenger) HandleRetractContactRequest(state *ReceivedMessageState, message protobuf.RetractContactRequest) error { contact := state.CurrentMessageState.Contact err := m.handleRetractContactRequest(contact, message) if err != nil { return err } if contact.ID != m.myHexIdentity() { state.ModifiedContacts.Store(contact.ID, true) } return nil } func (m *Messenger) HandleContactUpdate(state *ReceivedMessageState, message protobuf.ContactUpdate) error { logger := m.logger.With(zap.String("site", "HandleContactUpdate")) contact := state.CurrentMessageState.Contact chat, ok := state.AllChats.Load(contact.ID) allowed, err := m.isMessageAllowedFrom(state.CurrentMessageState.Contact.ID, chat) if err != nil { return err } if !allowed { return ErrMessageNotAllowed } if err = ValidateDisplayName(&message.DisplayName); err != nil { return err } if !ok { chat = OneToOneFromPublicKey(state.CurrentMessageState.PublicKey, state.Timesource) // We don't want to show the chat to the user chat.Active = false } logger.Debug("Handling contact update") if message.ContactRequestPropagatedState != nil { logger.Debug("handling contact request propagated state", zap.Any("state before update", contact.ContactRequestPropagatedState())) result := contact.ContactRequestPropagatedStateReceived(message.ContactRequestPropagatedState) if result.sendBackState { logger.Debug("sending back state") // This is a bit dangerous, since it might trigger a ping-pong of contact updates // also it should backoff/debounce _, err = m.sendContactUpdate(context.Background(), contact.ID, "", "", "", m.dispatchMessage) if err != nil { return err } } if result.newContactRequestReceived { contactRequest, err := m.createContactRequestForContactUpdate(contact, state) if err != nil { return err } err = m.createIncomingContactRequestNotification(contact, state, contactRequest, true) if err != nil { return err } } logger.Debug("handled propagated state", zap.Any("state after update", contact.ContactRequestPropagatedState())) state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) } if contact.LastUpdated < message.Clock { if contact.EnsName != message.EnsName { contact.EnsName = message.EnsName contact.ENSVerified = false } if len(message.DisplayName) != 0 { contact.DisplayName = message.DisplayName } r := contact.ContactRequestReceived(message.ContactRequestClock) if r.newContactRequestReceived { err = m.createIncomingContactRequestNotification(contact, state, nil, true) if err != nil { m.logger.Warn("could not create contact request notification", zap.Error(err)) } } contact.LastUpdated = message.Clock state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) } if chat.LastClockValue < message.Clock { chat.LastClockValue = message.Clock } if contact.mutual() && chat.DeletedAtClockValue < message.Clock { chat.Active = true } state.Response.AddChat(chat) // TODO(samyoul) remove storing of an updated reference pointer? state.AllChats.Store(chat.ID, chat) return nil } func (m *Messenger) HandlePairInstallation(state *ReceivedMessageState, message protobuf.PairInstallation) error { logger := m.logger.With(zap.String("site", "HandlePairInstallation")) if err := ValidateReceivedPairInstallation(&message, state.CurrentMessageState.WhisperTimestamp); err != nil { logger.Warn("failed to validate message", zap.Error(err)) return err } installation, ok := state.AllInstallations.Load(message.InstallationId) if !ok { return errors.New("installation not found") } metadata := &multidevice.InstallationMetadata{ Name: message.Name, DeviceType: message.DeviceType, } installation.InstallationMetadata = metadata // TODO(samyoul) remove storing of an updated reference pointer? state.AllInstallations.Store(message.InstallationId, installation) state.ModifiedInstallations.Store(message.InstallationId, true) return nil } // HandleCommunityInvitation handles an community invitation func (m *Messenger) HandleCommunityInvitation(state *ReceivedMessageState, signer *ecdsa.PublicKey, invitation protobuf.CommunityInvitation, rawPayload []byte) error { if invitation.PublicKey == nil { return errors.New("invalid pubkey") } pk, err := crypto.DecompressPubkey(invitation.PublicKey) if err != nil { return err } if !common.IsPubKeyEqual(pk, &m.identity.PublicKey) { return errors.New("invitation not for us") } communityResponse, err := m.communitiesManager.HandleCommunityInvitation(signer, &invitation, rawPayload) if err != nil { return err } community := communityResponse.Community state.Response.AddCommunity(community) state.Response.CommunityChanges = append(state.Response.CommunityChanges, communityResponse.Changes) return nil } func (m *Messenger) HandleHistoryArchiveMagnetlinkMessage(state *ReceivedMessageState, communityPubKey *ecdsa.PublicKey, magnetlink string, clock uint64) error { id := types.HexBytes(crypto.CompressPubkey(communityPubKey)) settings, err := m.communitiesManager.GetCommunitySettingsByID(id) if err != nil { m.logger.Debug("Couldn't get community settings for community with id: ", zap.Any("id", id)) return err } if m.torrentClientReady() && settings != nil && settings.HistoryArchiveSupportEnabled { signedByOwnedCommunity, err := m.communitiesManager.IsAdminCommunity(communityPubKey) if err != nil { return err } joinedCommunity, err := m.communitiesManager.IsJoinedCommunity(communityPubKey) if err != nil { return err } lastClock, err := m.communitiesManager.GetMagnetlinkMessageClock(id) if err != nil { return err } lastSeenMagnetlink, err := m.communitiesManager.GetLastSeenMagnetlink(id) if err != nil { return err } // We are only interested in a community archive magnet link // if it originates from a community that the current account is // part of and doesn't own the private key at the same time if !signedByOwnedCommunity && joinedCommunity && clock >= lastClock { if lastSeenMagnetlink == magnetlink { m.communitiesManager.LogStdout("already processed this magnetlink") return nil } m.communitiesManager.UnseedHistoryArchiveTorrent(id) currentTask := m.communitiesManager.GetHistoryArchiveDownloadTask(id.String()) go func(currentTask *communities.HistoryArchiveDownloadTask, communityID types.HexBytes) { // Cancel ongoing download/import task if currentTask != nil && !currentTask.IsCancelled() { currentTask.Cancel() currentTask.Waiter.Wait() } // Create new task task := &communities.HistoryArchiveDownloadTask{ CancelChan: make(chan struct{}), Waiter: *new(sync.WaitGroup), Cancelled: false, } m.communitiesManager.AddHistoryArchiveDownloadTask(communityID.String(), task) // this wait groups tracks the ongoing task for a particular community task.Waiter.Add(1) defer task.Waiter.Done() // this wait groups tracks all ongoing tasks across communities m.downloadHistoryArchiveTasksWaitGroup.Add(1) defer m.downloadHistoryArchiveTasksWaitGroup.Done() m.downloadAndImportHistoryArchives(communityID, magnetlink, task.CancelChan) }(currentTask, id) return m.communitiesManager.UpdateMagnetlinkMessageClock(id, clock) } } return nil } func (m *Messenger) downloadAndImportHistoryArchives(id types.HexBytes, magnetlink string, cancel chan struct{}) { downloadTaskInfo, err := m.communitiesManager.DownloadHistoryArchivesByMagnetlink(id, magnetlink, cancel) if err != nil { logMsg := "failed to download history archive data" if err == communities.ErrTorrentTimedout { m.communitiesManager.LogStdout("torrent has timed out, trying once more...") downloadTaskInfo, err = m.communitiesManager.DownloadHistoryArchivesByMagnetlink(id, magnetlink, cancel) if err != nil { m.communitiesManager.LogStdout(logMsg, zap.Error(err)) return } } else { m.communitiesManager.LogStdout(logMsg, zap.Error(err)) return } } if downloadTaskInfo.Cancelled { if downloadTaskInfo.TotalDownloadedArchivesCount > 0 { m.communitiesManager.LogStdout(fmt.Sprintf("downloaded %d of %d archives so far", downloadTaskInfo.TotalDownloadedArchivesCount, downloadTaskInfo.TotalArchivesCount)) } return } err = m.communitiesManager.UpdateLastSeenMagnetlink(id, magnetlink) if err != nil { m.communitiesManager.LogStdout("couldn't update last seen magnetlink", zap.Error(err)) } err = m.importHistoryArchives(id, cancel) if err != nil { m.communitiesManager.LogStdout("failed to import history archives", zap.Error(err)) m.config.messengerSignalsHandler.DownloadingHistoryArchivesFinished(types.EncodeHex(id)) return } m.config.messengerSignalsHandler.DownloadingHistoryArchivesFinished(types.EncodeHex(id)) } func (m *Messenger) handleArchiveMessages(archiveMessages []*protobuf.WakuMessage, id types.HexBytes) (*MessengerResponse, error) { messagesToHandle := make(map[transport.Filter][]*types.Message) for _, message := range archiveMessages { filter := m.transport.FilterByTopic(message.Topic) if filter != nil { shhMessage := &types.Message{ Sig: message.Sig, Timestamp: uint32(message.Timestamp), Topic: types.BytesToTopic(message.Topic), Payload: message.Payload, Padding: message.Padding, Hash: message.Hash, ThirdPartyID: message.ThirdPartyId, } messagesToHandle[*filter] = append(messagesToHandle[*filter], shhMessage) } } importedMessages := make(map[transport.Filter][]*types.Message, 0) otherMessages := make(map[transport.Filter][]*types.Message, 0) for filter, messages := range messagesToHandle { for _, message := range messages { if message.ThirdPartyID != "" { importedMessages[filter] = append(importedMessages[filter], message) } else { otherMessages[filter] = append(otherMessages[filter], message) } } } err := m.handleImportedMessages(importedMessages) if err != nil { m.communitiesManager.LogStdout("failed to handle imported messages", zap.Error(err)) return nil, err } response, err := m.handleRetrievedMessages(otherMessages, false) if err != nil { m.communitiesManager.LogStdout("failed to write history archive messages to database", zap.Error(err)) return nil, err } return response, nil } func (m *Messenger) HandleCommunityCancelRequestToJoin(state *ReceivedMessageState, signer *ecdsa.PublicKey, cancelRequestToJoinProto protobuf.CommunityCancelRequestToJoin) error { if cancelRequestToJoinProto.CommunityId == nil { return errors.New("invalid community id") } requestToJoin, err := m.communitiesManager.HandleCommunityCancelRequestToJoin(signer, &cancelRequestToJoinProto) if err != nil { return err } state.Response.RequestsToJoinCommunity = append(state.Response.RequestsToJoinCommunity, requestToJoin) // delete activity center notification notification, err := m.persistence.GetActivityCenterNotificationByID(requestToJoin.ID) if err != nil { return err } if notification != nil { err = m.persistence.DeleteActivityCenterNotification(types.FromHex(requestToJoin.ID.String())) if err != nil { m.logger.Error("failed to delete notification from Activity Center", zap.Error(err)) return err } // sending signal to client to remove the activity center notification from UI response := &MessengerResponse{} notification.Deleted = true response.AddActivityCenterNotification(notification) signal.SendNewMessages(response) } return nil } // HandleCommunityRequestToJoin handles an community request to join func (m *Messenger) HandleCommunityRequestToJoin(state *ReceivedMessageState, signer *ecdsa.PublicKey, requestToJoinProto protobuf.CommunityRequestToJoin) error { if requestToJoinProto.CommunityId == nil { return errors.New("invalid community id") } timeNow := uint64(time.Now().Unix()) requestTimeOutClock, err := communities.AddTimeoutToRequestToJoinClock(requestToJoinProto.Clock) if err != nil { return err } if timeNow >= requestTimeOutClock { return errors.New("request is expired") } requestToJoin, err := m.communitiesManager.HandleCommunityRequestToJoin(signer, &requestToJoinProto) if err != nil { return err } if requestToJoin.State == communities.RequestToJoinStateAccepted { accept := &requests.AcceptRequestToJoinCommunity{ ID: requestToJoin.ID, } _, err = m.AcceptRequestToJoinCommunity(accept) if err != nil { return err } } if requestToJoin.State == communities.RequestToJoinStateDeclined { cancel := &requests.DeclineRequestToJoinCommunity{ ID: requestToJoin.ID, } _, err = m.DeclineRequestToJoinCommunity(cancel) if err != nil { return err } return nil } community, err := m.communitiesManager.GetByID(requestToJoinProto.CommunityId) if err != nil { return err } contactID := contactIDFromPublicKey(signer) contact, _ := state.AllContacts.Load(contactID) if len(requestToJoinProto.DisplayName) != 0 { contact.DisplayName = requestToJoinProto.DisplayName state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) state.ModifiedContacts.Store(contact.ID, true) } if requestToJoin.State == communities.RequestToJoinStatePending { state.Response.RequestsToJoinCommunity = append(state.Response.RequestsToJoinCommunity, requestToJoin) state.Response.AddNotification(NewCommunityRequestToJoinNotification(requestToJoin.ID.String(), community, contact)) // Activity Center notification, new for pending state notification := &ActivityCenterNotification{ ID: types.FromHex(requestToJoin.ID.String()), Type: ActivityCenterNotificationTypeCommunityMembershipRequest, Timestamp: m.getTimesource().GetCurrentTime(), Author: contact.ID, CommunityID: community.IDString(), MembershipStatus: ActivityCenterMembershipStatusPending, Deleted: false, } err = m.addActivityCenterNotification(state.Response, notification) if err != nil { m.logger.Error("failed to save notification", zap.Error(err)) return err } } else { // Activity Center notification, updating existing for accepted/declined notification, err := m.persistence.GetActivityCenterNotificationByID(requestToJoin.ID) if err != nil { return err } if notification != nil { if requestToJoin.State == communities.RequestToJoinStateAccepted { notification.MembershipStatus = ActivityCenterMembershipStatusAccepted } else { notification.MembershipStatus = ActivityCenterMembershipStatusDeclined } err = m.addActivityCenterNotification(state.Response, notification) if err != nil { m.logger.Error("failed to save notification", zap.Error(err)) return err } } } return nil } func (m *Messenger) HandleCommunityRequestToJoinResponse(state *ReceivedMessageState, signer *ecdsa.PublicKey, requestToJoinResponseProto protobuf.CommunityRequestToJoinResponse) error { if requestToJoinResponseProto.CommunityId == nil { return errors.New("invalid community id") } updatedRequest, err := m.communitiesManager.HandleCommunityRequestToJoinResponse(signer, &requestToJoinResponseProto) if err != nil { return err } if updatedRequest != nil { state.Response.RequestsToJoinCommunity = append(state.Response.RequestsToJoinCommunity, updatedRequest) } if requestToJoinResponseProto.Accepted { response, err := m.JoinCommunity(context.Background(), requestToJoinResponseProto.CommunityId) if err != nil { return err } if len(response.Communities()) > 0 { communitySettings := response.CommunitiesSettings()[0] community := response.Communities()[0] state.Response.AddCommunity(community) state.Response.AddCommunitySettings(communitySettings) magnetlink := requestToJoinResponseProto.MagnetUri if m.torrentClientReady() && communitySettings != nil && communitySettings.HistoryArchiveSupportEnabled && magnetlink != "" { currentTask := m.communitiesManager.GetHistoryArchiveDownloadTask(community.IDString()) go func(currentTask *communities.HistoryArchiveDownloadTask) { // Cancel ongoing download/import task if currentTask != nil && !currentTask.IsCancelled() { currentTask.Cancel() currentTask.Waiter.Wait() } task := &communities.HistoryArchiveDownloadTask{ CancelChan: make(chan struct{}), Waiter: *new(sync.WaitGroup), Cancelled: false, } m.communitiesManager.AddHistoryArchiveDownloadTask(community.IDString(), task) task.Waiter.Add(1) defer task.Waiter.Done() m.downloadHistoryArchiveTasksWaitGroup.Add(1) defer m.downloadHistoryArchiveTasksWaitGroup.Done() m.downloadAndImportHistoryArchives(community.ID(), magnetlink, task.CancelChan) }(currentTask) clock := requestToJoinResponseProto.Community.ArchiveMagnetlinkClock return m.communitiesManager.UpdateMagnetlinkMessageClock(community.ID(), clock) } } } // Activity Center notification requestID := communities.CalculateRequestID(common.PubkeyToHex(&m.identity.PublicKey), requestToJoinResponseProto.CommunityId) notification, err := m.persistence.GetActivityCenterNotificationByID(requestID) if err != nil { return err } if notification != nil { if requestToJoinResponseProto.Accepted { notification.MembershipStatus = ActivityCenterMembershipStatusAccepted notification.Read = false notification.Deleted = false } else { notification.MembershipStatus = ActivityCenterMembershipStatusDeclined } err = m.addActivityCenterNotification(state.Response, notification) if err != nil { m.logger.Warn("failed to update notification", zap.Error(err)) return err } } return nil } func (m *Messenger) HandleCommunityRequestToLeave(state *ReceivedMessageState, signer *ecdsa.PublicKey, requestToLeaveProto protobuf.CommunityRequestToLeave) error { if requestToLeaveProto.CommunityId == nil { return errors.New("invalid community id") } err := m.communitiesManager.HandleCommunityRequestToLeave(signer, &requestToLeaveProto) if err != nil { return err } response, err := m.RemoveUserFromCommunity(requestToLeaveProto.CommunityId, common.PubkeyToHex(signer)) if err != nil { return err } if len(response.Communities()) > 0 { state.Response.AddCommunity(response.Communities()[0]) } return nil } // handleWrappedCommunityDescriptionMessage handles a wrapped community description func (m *Messenger) handleWrappedCommunityDescriptionMessage(payload []byte) (*communities.CommunityResponse, error) { return m.communitiesManager.HandleWrappedCommunityDescriptionMessage(payload) } func (m *Messenger) HandleEditMessage(state *ReceivedMessageState, editMessage EditMessage) error { if err := ValidateEditMessage(editMessage.EditMessage); err != nil { return err } messageID := editMessage.MessageId originalMessage, err := m.getMessageFromResponseOrDatabase(state.Response, messageID) if err == common.ErrRecordNotFound { return m.persistence.SaveEdit(editMessage) } else if err != nil { return err } originalMessageMentioned := originalMessage.Mentioned chat, ok := m.allChats.Load(originalMessage.LocalChatID) if !ok { return errors.New("chat not found") } // Check edit is valid if originalMessage.From != editMessage.From { return errors.New("invalid edit, not the right author") } // Check that edit should be applied if originalMessage.EditedAt >= editMessage.Clock { return m.persistence.SaveEdit(editMessage) } // applyEditMessage modifies the message. Changing the variable name to make it clearer editedMessage := originalMessage // Update message and return it err = m.applyEditMessage(&editMessage.EditMessage, editedMessage) if err != nil { return err } if chat.LastMessage != nil && chat.LastMessage.ID == editedMessage.ID { chat.LastMessage = editedMessage err := m.saveChat(chat) if err != nil { return err } } responseTo, err := m.persistence.MessageByID(editedMessage.ResponseTo) if err != nil && err != common.ErrRecordNotFound { return err } err = state.updateExistingActivityCenterNotification(m.identity.PublicKey, m, editedMessage, responseTo) if err != nil { return err } editedMessageHasMentions := editedMessage.Mentioned needToSaveChat := false if editedMessageHasMentions && !originalMessageMentioned && !editedMessage.Seen { // Increase unviewed count when the edited message has a mention and didn't have one before chat.UnviewedMentionsCount++ needToSaveChat = true } else if !editedMessageHasMentions && originalMessageMentioned && !editedMessage.Seen { // Opposite of above, the message had a mention, but no longer does, so we reduce the count chat.UnviewedMentionsCount-- needToSaveChat = true } if needToSaveChat { err := m.saveChat(chat) if err != nil { return err } } state.Response.AddMessage(editedMessage) // pull updated messages updatedMessages, err := m.persistence.MessagesByResponseTo(messageID) if err != nil { return err } state.Response.AddMessages(updatedMessages) state.Response.AddChat(chat) return nil } func (m *Messenger) HandleDeleteMessage(state *ReceivedMessageState, deleteMessage DeleteMessage) error { if err := ValidateDeleteMessage(deleteMessage.DeleteMessage); err != nil { return err } messageID := deleteMessage.MessageId // Check if it's already in the response originalMessage := state.Response.GetMessage(messageID) // otherwise pull from database if originalMessage == nil { var err error originalMessage, err = m.persistence.MessageByID(messageID) if err != nil && err != common.ErrRecordNotFound { return err } } if originalMessage == nil { return m.persistence.SaveDelete(deleteMessage) } chat, ok := m.allChats.Load(originalMessage.LocalChatID) if !ok { return errors.New("chat not found") } var canDeleteMessageForEveryone = false if originalMessage.From != deleteMessage.From { fromPublicKey, err := common.HexToPubkey(deleteMessage.From) if err != nil { return err } if chat.ChatType == ChatTypeCommunityChat { canDeleteMessageForEveryone = m.CanDeleteMessageForEveryoneInCommunity(chat.CommunityID, fromPublicKey) if !canDeleteMessageForEveryone { return ErrInvalidDeletePermission } } else if chat.ChatType == ChatTypePrivateGroupChat { canDeleteMessageForEveryone = m.CanDeleteMessageForEveryoneInPrivateGroupChat(chat, fromPublicKey) if !canDeleteMessageForEveryone { return ErrInvalidDeletePermission } } // Check edit is valid if !canDeleteMessageForEveryone { return errors.New("invalid delete, not the right author") } } messagesToDelete, err := m.getConnectedMessages(originalMessage, deleteMessage.ChatId) if err != nil { return err } unreadCountDecreased := false for _, messageToDelete := range messagesToDelete { messageToDelete.Deleted = true messageToDelete.DeletedBy = deleteMessage.DeleteMessage.DeletedBy err := m.persistence.SaveMessages([]*common.Message{messageToDelete}) if err != nil { return err } m.logger.Debug("deleting activity center notification for message", zap.String("chatID", chat.ID), zap.String("messageID", messageToDelete.ID)) err = m.persistence.DeleteActivityCenterNotificationForMessage(chat.ID, messageToDelete.ID) if err != nil { m.logger.Warn("failed to delete notifications for deleted message", zap.Error(err)) return err } // Reduce chat mention count and unread count if unread if !messageToDelete.Seen && !unreadCountDecreased { unreadCountDecreased = true chat.UnviewedMessagesCount-- if messageToDelete.Mentioned || messageToDelete.Replied { chat.UnviewedMentionsCount-- } err := m.saveChat(chat) if err != nil { return err } } state.Response.AddRemovedMessage(&RemovedMessage{MessageID: messageToDelete.ID, ChatID: chat.ID, DeletedBy: deleteMessage.DeleteMessage.DeletedBy}) state.Response.AddNotification(DeletedMessageNotification(messageToDelete.ID, chat)) state.Response.AddActivityCenterNotification(&ActivityCenterNotification{ ID: types.FromHex(messageToDelete.ID), Deleted: true, }) if chat.LastMessage != nil && chat.LastMessage.ID == originalMessage.ID { if err := m.updateLastMessage(chat); err != nil { return err } if chat.LastMessage != nil && !chat.LastMessage.Seen && chat.OneToOne() && !chat.Active { m.createMessageNotification(chat, state) } } // pull updated messages updatedMessages, err := m.persistence.MessagesByResponseTo(messageToDelete.ID) if err != nil { return err } state.Response.AddMessages(updatedMessages) } state.Response.AddChat(chat) return nil } func (m *Messenger) getMessageFromResponseOrDatabase(response *MessengerResponse, messageID string) (*common.Message, error) { originalMessage := response.GetMessage(messageID) // otherwise pull from database if originalMessage != nil { return originalMessage, nil } return m.persistence.MessageByID(messageID) } // TODO do this delete too func (m *Messenger) HandleDeleteForMeMessage(state *ReceivedMessageState, deleteForMeMessage DeleteForMeMessage) error { if err := ValidateDeleteForMeMessage(deleteForMeMessage.DeleteForMeMessage); err != nil { return err } messageID := deleteForMeMessage.MessageId // Check if it's already in the response originalMessage, err := m.getMessageFromResponseOrDatabase(state.Response, messageID) if err == common.ErrRecordNotFound { return m.persistence.SaveDeleteForMe(deleteForMeMessage) } else if err != nil { return err } chat, ok := m.allChats.Load(originalMessage.LocalChatID) if !ok { return errors.New("chat not found") } messagesToDelete, err := m.getConnectedMessages(originalMessage, deleteForMeMessage.LocalChatID) if err != nil { return err } for _, messageToDelete := range messagesToDelete { messageToDelete.DeletedForMe = true err := m.persistence.SaveMessages([]*common.Message{messageToDelete}) if err != nil { return err } m.logger.Debug("deleting activity center notification for message", zap.String("chatID", chat.ID), zap.String("messageID", messageToDelete.ID)) err = m.persistence.DeleteActivityCenterNotificationForMessage(chat.ID, messageToDelete.ID) if err != nil { m.logger.Warn("failed to delete notifications for deleted message", zap.Error(err)) return err } if chat.LastMessage != nil && chat.LastMessage.ID == messageToDelete.ID { if err := m.updateLastMessage(chat); err != nil { return err } } state.Response.AddMessage(messageToDelete) } state.Response.AddChat(chat) return nil } func (m *Messenger) updateLastMessage(chat *Chat) error { // Get last message that is not hidden messages, err := m.persistence.LatestMessageByChatID(chat.ID) if err != nil { return err } if len(messages) > 0 { chat.LastMessage = messages[0] } else { chat.LastMessage = nil } return m.saveChat(chat) } func handleContactRequestChatMessage(receivedMessage *common.Message, contact *Contact, outgoing bool, logger *zap.Logger) (bool, error) { receivedMessage.ContactRequestState = common.ContactRequestStatePending var response ContactRequestProcessingResponse if outgoing { response = contact.ContactRequestSent(receivedMessage.Clock) } else { response = contact.ContactRequestReceived(receivedMessage.Clock) } if !response.processed { logger.Info("not handling contact message since clock lower") return false, nil } if contact.mutual() { receivedMessage.ContactRequestState = common.ContactRequestStateAccepted } return response.newContactRequestReceived, nil } func (m *Messenger) HandleChatMessage(state *ReceivedMessageState) error { logger := m.logger.With(zap.String("site", "handleChatMessage")) if err := ValidateReceivedChatMessage(&state.CurrentMessageState.Message, state.CurrentMessageState.WhisperTimestamp); err != nil { logger.Warn("failed to validate message", zap.Error(err)) return err } receivedMessage := &common.Message{ ID: state.CurrentMessageState.MessageID, ChatMessage: state.CurrentMessageState.Message, From: state.CurrentMessageState.Contact.ID, Alias: state.CurrentMessageState.Contact.Alias, SigPubKey: state.CurrentMessageState.PublicKey, Identicon: state.CurrentMessageState.Contact.Identicon, WhisperTimestamp: state.CurrentMessageState.WhisperTimestamp, } // is the message coming from us? isSyncMessage := common.IsPubKeyEqual(receivedMessage.SigPubKey, &m.identity.PublicKey) if isSyncMessage { receivedMessage.Seen = true } err := receivedMessage.PrepareContent(m.myHexIdentity()) if err != nil { return fmt.Errorf("failed to prepare message content: %v", err) } // If the message is a reply, we check if it's a reply to one of own own messages if receivedMessage.ResponseTo != "" { repliedTo, err := m.persistence.MessageByID(receivedMessage.ResponseTo) if err != nil && (err == sql.ErrNoRows || err == common.ErrRecordNotFound) { logger.Error("failed to get quoted message", zap.Error(err)) } else if err != nil { return err } else if repliedTo.From == m.myHexIdentity() { receivedMessage.Replied = true } } chat, err := m.matchChatEntity(receivedMessage) if err != nil { return err // matchChatEntity returns a descriptive error message } if chat.ReadMessagesAtClockValue >= receivedMessage.Clock { receivedMessage.Seen = true } allowed, err := m.isMessageAllowedFrom(state.CurrentMessageState.Contact.ID, chat) if err != nil { return err } if !allowed { return ErrMessageNotAllowed } // It looks like status-mobile created profile chats as public chats // so for now we need to check for the presence of "@" in their chatID if chat.Public() && !chat.ProfileUpdates() { switch receivedMessage.ContentType { case protobuf.ChatMessage_IMAGE: return errors.New("images are not allowed in public chats") case protobuf.ChatMessage_AUDIO: return errors.New("audio messages are not allowed in public chats") } } // If profile updates check if author is the same as chat profile public key if chat.ProfileUpdates() && receivedMessage.From != chat.Profile { return nil } // If deleted-at is greater, ignore message if chat.DeletedAtClockValue >= receivedMessage.Clock { return nil } // Set the LocalChatID for the message receivedMessage.LocalChatID = chat.ID if err := m.updateChatFirstMessageTimestamp(chat, whisperToUnixTimestamp(receivedMessage.WhisperTimestamp), state.Response); err != nil { return err } // Our own message, mark as sent if isSyncMessage { receivedMessage.OutgoingStatus = common.OutgoingStatusSent } else if !receivedMessage.Seen { // Increase unviewed count skipUpdateUnviewedCountForAlbums := false if receivedMessage.ContentType == protobuf.ChatMessage_IMAGE { image := receivedMessage.GetImage() if image != nil && image.AlbumId != "" { // Skip unviewed counts increasing for other messages from album if we have it in memory for _, message := range state.Response.Messages() { if receivedMessage.ContentType == protobuf.ChatMessage_IMAGE { img := message.GetImage() if img != nil && img.AlbumId != "" && img.AlbumId == image.AlbumId { skipUpdateUnviewedCountForAlbums = true break } } } if !skipUpdateUnviewedCountForAlbums { messages, err := m.persistence.AlbumMessages(chat.ID, image.AlbumId) if err != nil { return err } // Skip unviewed counts increasing for other messages from album if we have it in db skipUpdateUnviewedCountForAlbums = len(messages) > 0 } } } if !skipUpdateUnviewedCountForAlbums { m.updateUnviewedCounts(chat, receivedMessage.Mentioned || receivedMessage.Replied) } } contact := state.CurrentMessageState.Contact // If we receive some propagated state from someone who's not // our paired device, we handle it if receivedMessage.ContactRequestPropagatedState != nil && !isSyncMessage { result := contact.ContactRequestPropagatedStateReceived(receivedMessage.ContactRequestPropagatedState) if result.sendBackState { _, err = m.sendContactUpdate(context.Background(), contact.ID, "", "", "", m.dispatchMessage) if err != nil { return err } } if result.newContactRequestReceived { if contact.hasAddedUs() && !contact.mutual() { receivedMessage.ContactRequestState = common.ContactRequestStatePending } err = m.createIncomingContactRequestNotification(contact, state, receivedMessage, true) if err != nil { return err } } state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) } if receivedMessage.ContentType == protobuf.ChatMessage_CONTACT_REQUEST && chat.OneToOne() { chatContact := contact if isSyncMessage { chatContact, err = m.BuildContact(&requests.BuildContact{PublicKey: chat.ID}) if err != nil { return err } } sendNotification, err := handleContactRequestChatMessage(receivedMessage, chatContact, isSyncMessage, m.logger) if err != nil { m.logger.Error("failed to handle contact request message", zap.Error(err)) return err } state.ModifiedContacts.Store(chatContact.ID, true) state.AllContacts.Store(chatContact.ID, chatContact) if sendNotification { err = m.createIncomingContactRequestNotification(chatContact, state, receivedMessage, true) if err != nil { return err } } } else if receivedMessage.ContentType == protobuf.ChatMessage_COMMUNITY { chat.Highlight = true } if receivedMessage.ContentType == protobuf.ChatMessage_DISCORD_MESSAGE { discordMessage := receivedMessage.GetDiscordMessage() discordMessageAuthor := discordMessage.GetAuthor() discordMessageAttachments := discordMessage.GetAttachments() state.Response.AddDiscordMessage(discordMessage) state.Response.AddDiscordMessageAuthor(discordMessageAuthor) if len(discordMessageAttachments) > 0 { state.Response.AddDiscordMessageAttachments(discordMessageAttachments) } } err = m.checkForEdits(receivedMessage) if err != nil { return err } err = m.checkForDeletes(receivedMessage) if err != nil { return err } err = m.checkForDeleteForMes(receivedMessage) if err != nil { return err } if (receivedMessage.Deleted || receivedMessage.DeletedForMe) && (chat.LastMessage == nil || chat.LastMessage.ID == receivedMessage.ID) { // Get last message that is not hidden messages, err := m.persistence.LatestMessageByChatID(receivedMessage.LocalChatID) if err != nil { return err } if len(messages) != 0 { chat.LastMessage = messages[0] } else { chat.LastMessage = nil } } else { err = chat.UpdateFromMessage(receivedMessage, m.getTimesource()) if err != nil { return err } } // Set in the modified maps chat state.Response.AddChat(chat) // TODO(samyoul) remove storing of an updated reference pointer? m.allChats.Store(chat.ID, chat) if !isSyncMessage && receivedMessage.EnsName != "" { oldRecord, err := m.ensVerifier.Add(contact.ID, receivedMessage.EnsName, receivedMessage.Clock) if err != nil { m.logger.Warn("failed to verify ENS name", zap.Error(err)) } else if oldRecord == nil { // If oldRecord is nil, a new verification process will take place // so we reset the record contact.ENSVerified = false state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) } } if !isSyncMessage && contact.DisplayName != receivedMessage.DisplayName && len(receivedMessage.DisplayName) != 0 { contact.DisplayName = receivedMessage.DisplayName state.ModifiedContacts.Store(contact.ID, true) } if receivedMessage.ContentType == protobuf.ChatMessage_COMMUNITY { m.logger.Debug("Handling community content type") communityResponse, err := m.handleWrappedCommunityDescriptionMessage(receivedMessage.GetCommunity()) if err != nil { return err } community := communityResponse.Community receivedMessage.CommunityID = community.IDString() state.Response.AddCommunity(community) state.Response.CommunityChanges = append(state.Response.CommunityChanges, communityResponse.Changes) } receivedMessage.New = true state.Response.AddMessage(receivedMessage) return nil } func (m *Messenger) addActivityCenterNotification(response *MessengerResponse, notification *ActivityCenterNotification) error { err := m.persistence.SaveActivityCenterNotification(notification) if err != nil { m.logger.Error("failed to save notification", zap.Error(err)) return err } state, err := m.persistence.GetActivityCenterState() if err != nil { m.logger.Error("failed to obtain activity center state", zap.Error(err)) return err } response.AddActivityCenterNotification(notification) response.SetActivityCenterState(state) return nil } func (m *Messenger) HandleRequestAddressForTransaction(messageState *ReceivedMessageState, command protobuf.RequestAddressForTransaction) error { err := ValidateReceivedRequestAddressForTransaction(&command, messageState.CurrentMessageState.WhisperTimestamp) if err != nil { return err } message := &common.Message{ ChatMessage: protobuf.ChatMessage{ Clock: command.Clock, Timestamp: messageState.CurrentMessageState.WhisperTimestamp, Text: "Request address for transaction", // ChatId is only used as-is for messages sent to oneself (i.e: mostly sync) so no need to check it here ChatId: command.GetChatId(), MessageType: protobuf.MessageType_ONE_TO_ONE, ContentType: protobuf.ChatMessage_TRANSACTION_COMMAND, }, CommandParameters: &common.CommandParameters{ ID: messageState.CurrentMessageState.MessageID, Value: command.Value, Contract: command.Contract, CommandState: common.CommandStateRequestAddressForTransaction, }, } return m.handleCommandMessage(messageState, message) } func (m *Messenger) handleSyncSetting(messageState *ReceivedMessageState, message *protobuf.SyncSetting) error { settingField, err := m.extractAndSaveSyncSetting(message) if err != nil { return err } if settingField == nil { return nil } switch message.GetType() { case protobuf.SyncSetting_DISPLAY_NAME: if newName := message.GetValueString(); newName != "" && m.account.Name != newName { m.account.Name = newName if err := m.multiAccounts.SaveAccount(*m.account); err != nil { return err } } case protobuf.SyncSetting_MNEMONIC_REMOVED: if message.GetValueBool() { if err := m.settings.DeleteMnemonic(); err != nil { return err } messageState.Response.AddSetting(&settings.SyncSettingField{SettingField: settings.Mnemonic}) } return nil } messageState.Response.AddSetting(settingField) return nil } func (m *Messenger) HandleRequestTransaction(messageState *ReceivedMessageState, command protobuf.RequestTransaction) error { err := ValidateReceivedRequestTransaction(&command, messageState.CurrentMessageState.WhisperTimestamp) if err != nil { return err } message := &common.Message{ ChatMessage: protobuf.ChatMessage{ Clock: command.Clock, Timestamp: messageState.CurrentMessageState.WhisperTimestamp, Text: "Request transaction", // ChatId is only used for messages sent to oneself (i.e: mostly sync) so no need to check it here ChatId: command.GetChatId(), MessageType: protobuf.MessageType_ONE_TO_ONE, ContentType: protobuf.ChatMessage_TRANSACTION_COMMAND, }, CommandParameters: &common.CommandParameters{ ID: messageState.CurrentMessageState.MessageID, Value: command.Value, Contract: command.Contract, CommandState: common.CommandStateRequestTransaction, Address: command.Address, }, } return m.handleCommandMessage(messageState, message) } func (m *Messenger) HandleAcceptRequestAddressForTransaction(messageState *ReceivedMessageState, command protobuf.AcceptRequestAddressForTransaction) error { err := ValidateReceivedAcceptRequestAddressForTransaction(&command, messageState.CurrentMessageState.WhisperTimestamp) if err != nil { return err } initialMessage, err := m.persistence.MessageByID(command.Id) if err != nil { return err } if initialMessage == nil { return errors.New("message not found") } if initialMessage.LocalChatID != messageState.CurrentMessageState.Contact.ID { return errors.New("From must match") } if initialMessage.OutgoingStatus == "" { return errors.New("Initial message must originate from us") } if initialMessage.CommandParameters.CommandState != common.CommandStateRequestAddressForTransaction { return errors.New("Wrong state for command") } initialMessage.Clock = command.Clock initialMessage.Timestamp = messageState.CurrentMessageState.WhisperTimestamp initialMessage.Text = requestAddressForTransactionAcceptedMessage initialMessage.CommandParameters.Address = command.Address initialMessage.Seen = false initialMessage.CommandParameters.CommandState = common.CommandStateRequestAddressForTransactionAccepted initialMessage.ChatId = command.GetChatId() // Hide previous message previousMessage, err := m.persistence.MessageByCommandID(messageState.CurrentMessageState.Contact.ID, command.Id) if err != nil && err != common.ErrRecordNotFound { return err } if previousMessage != nil { err = m.persistence.HideMessage(previousMessage.ID) if err != nil { return err } initialMessage.Replace = previousMessage.ID } return m.handleCommandMessage(messageState, initialMessage) } func (m *Messenger) HandleSendTransaction(messageState *ReceivedMessageState, command protobuf.SendTransaction) error { err := ValidateReceivedSendTransaction(&command, messageState.CurrentMessageState.WhisperTimestamp) if err != nil { return err } transactionToValidate := &TransactionToValidate{ MessageID: messageState.CurrentMessageState.MessageID, CommandID: command.Id, TransactionHash: command.TransactionHash, FirstSeen: messageState.CurrentMessageState.WhisperTimestamp, Signature: command.Signature, Validate: true, From: messageState.CurrentMessageState.PublicKey, RetryCount: 0, } m.logger.Info("Saving transction to validate", zap.Any("transaction", transactionToValidate)) return m.persistence.SaveTransactionToValidate(transactionToValidate) } func (m *Messenger) HandleDeclineRequestAddressForTransaction(messageState *ReceivedMessageState, command protobuf.DeclineRequestAddressForTransaction) error { err := ValidateReceivedDeclineRequestAddressForTransaction(&command, messageState.CurrentMessageState.WhisperTimestamp) if err != nil { return err } oldMessage, err := m.persistence.MessageByID(command.Id) if err != nil { return err } if oldMessage == nil { return errors.New("message not found") } if oldMessage.LocalChatID != messageState.CurrentMessageState.Contact.ID { return errors.New("From must match") } if oldMessage.OutgoingStatus == "" { return errors.New("Initial message must originate from us") } if oldMessage.CommandParameters.CommandState != common.CommandStateRequestAddressForTransaction { return errors.New("Wrong state for command") } oldMessage.Clock = command.Clock oldMessage.Timestamp = messageState.CurrentMessageState.WhisperTimestamp oldMessage.Text = requestAddressForTransactionDeclinedMessage oldMessage.Seen = false oldMessage.CommandParameters.CommandState = common.CommandStateRequestAddressForTransactionDeclined oldMessage.ChatId = command.GetChatId() // Hide previous message err = m.persistence.HideMessage(command.Id) if err != nil { return err } oldMessage.Replace = command.Id return m.handleCommandMessage(messageState, oldMessage) } func (m *Messenger) HandleDeclineRequestTransaction(messageState *ReceivedMessageState, command protobuf.DeclineRequestTransaction) error { err := ValidateReceivedDeclineRequestTransaction(&command, messageState.CurrentMessageState.WhisperTimestamp) if err != nil { return err } oldMessage, err := m.persistence.MessageByID(command.Id) if err != nil { return err } if oldMessage == nil { return errors.New("message not found") } if oldMessage.LocalChatID != messageState.CurrentMessageState.Contact.ID { return errors.New("From must match") } if oldMessage.OutgoingStatus == "" { return errors.New("Initial message must originate from us") } if oldMessage.CommandParameters.CommandState != common.CommandStateRequestTransaction { return errors.New("Wrong state for command") } oldMessage.Clock = command.Clock oldMessage.Timestamp = messageState.CurrentMessageState.WhisperTimestamp oldMessage.Text = transactionRequestDeclinedMessage oldMessage.Seen = false oldMessage.CommandParameters.CommandState = common.CommandStateRequestTransactionDeclined oldMessage.ChatId = command.GetChatId() // Hide previous message err = m.persistence.HideMessage(command.Id) if err != nil { return err } oldMessage.Replace = command.Id return m.handleCommandMessage(messageState, oldMessage) } func (m *Messenger) matchChatEntity(chatEntity common.ChatEntity) (*Chat, error) { if chatEntity.GetSigPubKey() == nil { m.logger.Error("public key can't be empty") return nil, errors.New("received a chatEntity with empty public key") } switch { case chatEntity.GetMessageType() == protobuf.MessageType_PUBLIC_GROUP: // For public messages, all outgoing and incoming messages have the same chatID // equal to a public chat name. chatID := chatEntity.GetChatId() chat, ok := m.allChats.Load(chatID) if !ok { return nil, errors.New("received a public chatEntity from non-existing chat") } if !chat.Public() && !chat.ProfileUpdates() && !chat.Timeline() { return nil, ErrMessageForWrongChatType } return chat, nil case chatEntity.GetMessageType() == protobuf.MessageType_ONE_TO_ONE && common.IsPubKeyEqual(chatEntity.GetSigPubKey(), &m.identity.PublicKey): // It's a private message coming from us so we rely on Message.ChatID // If chat does not exist, it should be created to support multidevice synchronization. chatID := chatEntity.GetChatId() chat, ok := m.allChats.Load(chatID) if !ok { if len(chatID) != PubKeyStringLength { return nil, errors.New("invalid pubkey length") } bytePubKey, err := hex.DecodeString(chatID[2:]) if err != nil { return nil, errors.Wrap(err, "failed to decode hex chatID") } pubKey, err := crypto.UnmarshalPubkey(bytePubKey) if err != nil { return nil, errors.Wrap(err, "failed to decode pubkey") } chat = CreateOneToOneChat(chatID[:8], pubKey, m.getTimesource()) } // if we are the sender, the chat must be active chat.Active = true return chat, nil case chatEntity.GetMessageType() == protobuf.MessageType_ONE_TO_ONE: // It's an incoming private chatEntity. ChatID is calculated from the signature. // If a chat does not exist, a new one is created and saved. chatID := contactIDFromPublicKey(chatEntity.GetSigPubKey()) chat, ok := m.allChats.Load(chatID) if !ok { // TODO: this should be a three-word name used in the mobile client chat = CreateOneToOneChat(chatID[:8], chatEntity.GetSigPubKey(), m.getTimesource()) chat.Active = false } // We set the chat as inactive and will create a notification // if it's not coming from a contact contact, ok := m.allContacts.Load(chatID) chat.Active = chat.Active || (ok && contact.added()) return chat, nil case chatEntity.GetMessageType() == protobuf.MessageType_COMMUNITY_CHAT: chatID := chatEntity.GetChatId() chat, ok := m.allChats.Load(chatID) if !ok { return nil, errors.New("received community chat chatEntity for non-existing chat") } if chat.CommunityID == "" || chat.ChatType != ChatTypeCommunityChat { return nil, errors.New("not an community chat") } var emojiReaction bool var pinMessage bool // We allow emoji reactions from anyone switch chatEntity.(type) { case *EmojiReaction: emojiReaction = true case *common.PinMessage: pinMessage = true } canPost, err := m.communitiesManager.CanPost(chatEntity.GetSigPubKey(), chat.CommunityID, chat.CommunityChatID(), chatEntity.GetGrant()) if err != nil { return nil, err } community, err := m.communitiesManager.GetByIDString(chat.CommunityID) if err != nil { return nil, err } isMemberAdmin := community.IsMemberAdmin(chatEntity.GetSigPubKey()) pinMessageAllowed := community.AllowsAllMembersToPinMessage() if (pinMessage && !isMemberAdmin && !pinMessageAllowed) || (!emojiReaction && !canPost) { return nil, errors.New("user can't post") } return chat, nil case chatEntity.GetMessageType() == protobuf.MessageType_PRIVATE_GROUP: // In the case of a group chatEntity, ChatID is the same for all messages belonging to a group. // It needs to be verified if the signature public key belongs to the chat. chatID := chatEntity.GetChatId() chat, ok := m.allChats.Load(chatID) if !ok { return nil, errors.New("received group chat chatEntity for non-existing chat") } senderKeyHex := contactIDFromPublicKey(chatEntity.GetSigPubKey()) myKeyHex := contactIDFromPublicKey(&m.identity.PublicKey) senderIsMember := false iAmMember := false for _, member := range chat.Members { if member.ID == senderKeyHex { senderIsMember = true } if member.ID == myKeyHex { iAmMember = true } } if senderIsMember && iAmMember { return chat, nil } return nil, errors.New("did not find a matching group chat") default: return nil, errors.New("can not match a chat because there is no valid case") } } func (m *Messenger) messageExists(messageID string, existingMessagesMap map[string]bool) (bool, error) { if _, ok := existingMessagesMap[messageID]; ok { return true, nil } existingMessagesMap[messageID] = true // Check against the database, this is probably a bit slow for // each message, but for now might do, we'll make it faster later existingMessage, err := m.persistence.MessageByID(messageID) if err != nil && err != common.ErrRecordNotFound { return false, err } if existingMessage != nil { return true, nil } return false, nil } func (m *Messenger) HandleEmojiReaction(state *ReceivedMessageState, pbEmojiR protobuf.EmojiReaction) error { logger := m.logger.With(zap.String("site", "HandleEmojiReaction")) if err := ValidateReceivedEmojiReaction(&pbEmojiR, state.Timesource.GetCurrentTime()); err != nil { logger.Error("invalid emoji reaction", zap.Error(err)) return err } from := state.CurrentMessageState.Contact.ID emojiReaction := &EmojiReaction{ EmojiReaction: pbEmojiR, From: from, SigPubKey: state.CurrentMessageState.PublicKey, } existingEmoji, err := m.persistence.EmojiReactionByID(emojiReaction.ID()) if err != common.ErrRecordNotFound && err != nil { return err } if existingEmoji != nil && existingEmoji.Clock >= pbEmojiR.Clock { // this is not a valid emoji, ignoring return nil } chat, err := m.matchChatEntity(emojiReaction) if err != nil { return err // matchChatEntity returns a descriptive error message } // Set local chat id emojiReaction.LocalChatID = chat.ID logger.Debug("Handling emoji reaction") if chat.LastClockValue < pbEmojiR.Clock { chat.LastClockValue = pbEmojiR.Clock } state.Response.AddChat(chat) // TODO(samyoul) remove storing of an updated reference pointer? state.AllChats.Store(chat.ID, chat) // save emoji reaction err = m.persistence.SaveEmojiReaction(emojiReaction) if err != nil { return err } state.EmojiReactions[emojiReaction.ID()] = emojiReaction return nil } func (m *Messenger) HandleGroupChatInvitation(state *ReceivedMessageState, pbGHInvitations protobuf.GroupChatInvitation) error { allowed, err := m.isMessageAllowedFrom(state.CurrentMessageState.Contact.ID, nil) if err != nil { return err } if !allowed { return ErrMessageNotAllowed } logger := m.logger.With(zap.String("site", "HandleGroupChatInvitation")) if err := ValidateReceivedGroupChatInvitation(&pbGHInvitations); err != nil { logger.Error("invalid group chat invitation", zap.Error(err)) return err } groupChatInvitation := &GroupChatInvitation{ GroupChatInvitation: pbGHInvitations, SigPubKey: state.CurrentMessageState.PublicKey, } //From is the PK of author of invitation request if groupChatInvitation.State == protobuf.GroupChatInvitation_REJECTED { //rejected so From is the current user who received this rejection groupChatInvitation.From = types.EncodeHex(crypto.FromECDSAPub(&m.identity.PublicKey)) } else { //invitation request, so From is the author of message groupChatInvitation.From = state.CurrentMessageState.Contact.ID } existingInvitation, err := m.persistence.InvitationByID(groupChatInvitation.ID()) if err != common.ErrRecordNotFound && err != nil { return err } if existingInvitation != nil && existingInvitation.Clock >= pbGHInvitations.Clock { // this is not a valid invitation, ignoring return nil } // save invitation err = m.persistence.SaveInvitation(groupChatInvitation) if err != nil { return err } state.GroupChatInvitations[groupChatInvitation.ID()] = groupChatInvitation return nil } // HandleChatIdentity handles an incoming protobuf.ChatIdentity // extracts contact information stored in the protobuf and adds it to the user's contact for update. func (m *Messenger) HandleChatIdentity(state *ReceivedMessageState, ci protobuf.ChatIdentity) error { s, err := m.settings.GetSettings() if err != nil { return err } contact := state.CurrentMessageState.Contact viewFromContacts := s.ProfilePicturesVisibility == settings.ProfilePicturesVisibilityContactsOnly viewFromNoOne := s.ProfilePicturesVisibility == settings.ProfilePicturesVisibilityNone m.logger.Debug("settings found", zap.Bool("viewFromContacts", viewFromContacts), zap.Bool("viewFromNoOne", viewFromNoOne), ) // If we don't want to view profile images from anyone, don't process identity images. // We don't want to store the profile images of other users, even if we don't display images. inOurContacts, ok := m.allContacts.Load(state.CurrentMessageState.Contact.ID) isContact := ok && inOurContacts.added() if viewFromNoOne && !isContact { return nil } // If there are no images attached to a ChatIdentity, check if message is allowed // Or if there are images and visibility is set to from contacts only, check if message is allowed // otherwise process the images without checking if the message is allowed if len(ci.Images) == 0 || (len(ci.Images) > 0 && (viewFromContacts)) { allowed, err := m.isMessageAllowedFrom(state.CurrentMessageState.Contact.ID, nil) if err != nil { return err } if !allowed { return ErrMessageNotAllowed } } err = DecryptIdentityImagesWithIdentityPrivateKey(ci.Images, m.identity, state.CurrentMessageState.PublicKey) if err != nil { return err } // Remove any images still encrypted after the decryption process for name, image := range ci.Images { if image.Encrypted { delete(ci.Images, name) } } clockChanged, imagesChanged, err := m.persistence.SaveContactChatIdentity(contact.ID, &ci) if err != nil { return err } contactModified := false if imagesChanged { for imageType, image := range ci.Images { if contact.Images == nil { contact.Images = make(map[string]images.IdentityImage) } contact.Images[imageType] = images.IdentityImage{Name: imageType, Payload: image.Payload, Clock: ci.Clock} } contactModified = true } if clockChanged { if err = ValidateDisplayName(&ci.DisplayName); err != nil { return err } if contact.DisplayName != ci.DisplayName && len(ci.DisplayName) != 0 { contact.DisplayName = ci.DisplayName contactModified = true } if err = ValidateBio(&ci.Description); err != nil { return err } if contact.Bio != ci.Description { contact.Bio = ci.Description contactModified = true } socialLinks := identity.NewSocialLinks(ci.SocialLinks) if err = ValidateSocialLinks(socialLinks); err != nil { return err } if !contact.SocialLinks.Equals(*socialLinks) { contact.SocialLinks = *socialLinks contactModified = true } } if contactModified { state.ModifiedContacts.Store(contact.ID, true) state.AllContacts.Store(contact.ID, contact) } return nil } func (m *Messenger) HandleAnonymousMetricBatch(amb protobuf.AnonymousMetricBatch) error { // TODO return nil } func (m *Messenger) checkForEdits(message *common.Message) error { // Check for any pending edit // If any pending edits are available and valid, apply them edits, err := m.persistence.GetEdits(message.ID, message.From) if err != nil { return err } if len(edits) == 0 { return nil } // Apply the first edit that is valid for _, e := range edits { if e.Clock >= message.Clock { // Update message and return it err := m.applyEditMessage(&e.EditMessage, message) if err != nil { return err } return nil } } return nil } func (m *Messenger) getMessagesToCheckForDelete(message *common.Message) ([]*common.Message, error) { var messagesToCheck []*common.Message if message.ContentType == protobuf.ChatMessage_IMAGE { image := message.GetImage() messagesInTheAlbum, err := m.persistence.albumMessages(message.ChatId, image.GetAlbumId()) if err != nil { return nil, err } messagesToCheck = append(messagesToCheck, messagesInTheAlbum...) } messagesToCheck = append(messagesToCheck, message) return messagesToCheck, nil } func (m *Messenger) checkForDeletes(message *common.Message) error { messagesToCheck, err := m.getMessagesToCheckForDelete(message) if err != nil { return err } var messageDeletes []*DeleteMessage applyDelete := false for _, messageToCheck := range messagesToCheck { if !applyDelete { // Check for any pending deletes // If any pending deletes are available and valid, apply them messageDeletes, err = m.persistence.GetDeletes(messageToCheck.ID, messageToCheck.From) if err != nil { return err } if len(messageDeletes) == 0 { continue } } // Once one messageDelete has been found, we apply it to all the images in the album applyDelete = true err := m.applyDeleteMessage(messageDeletes, messageToCheck) if err != nil { return err } } return nil } func (m *Messenger) checkForDeleteForMes(message *common.Message) error { messagesToCheck, err := m.getMessagesToCheckForDelete(message) if err != nil { return err } var messageDeleteForMes []*DeleteForMeMessage applyDelete := false for _, messageToCheck := range messagesToCheck { if !applyDelete { // Check for any pending delete for mes // If any pending deletes are available and valid, apply them messageDeleteForMes, err = m.persistence.GetDeleteForMes(messageToCheck.ID, messageToCheck.From) if err != nil { return err } if len(messageDeleteForMes) == 0 { continue } } // Once one messageDeleteForMes has been found, we apply it to all the images in the album applyDelete = true err := m.applyDeleteForMeMessage(messageDeleteForMes, messageToCheck) if err != nil { return err } } return nil } func (m *Messenger) isMessageAllowedFrom(publicKey string, chat *Chat) (bool, error) { onlyFromContacts, err := m.settings.GetMessagesFromContactsOnly() if err != nil { return false, err } if !onlyFromContacts { return true, nil } // if it's from us, it's allowed if m.myHexIdentity() == publicKey { return true, nil } // If the chat is active, we allow it if chat != nil && chat.Active { return true, nil } // If the chat is public, we allow it if chat != nil && chat.Public() { return true, nil } contact, ok := m.allContacts.Load(publicKey) if !ok { // If it's not in contacts, we don't allow it return false, nil } // Otherwise we check if we added it return contact.added(), nil } func (m *Messenger) updateUnviewedCounts(chat *Chat, mentionedOrReplied bool) { chat.UnviewedMessagesCount++ if mentionedOrReplied { chat.UnviewedMentionsCount++ } } func (m *Messenger) handleSyncWalletAccount(message *protobuf.SyncWalletAccount) (*accounts.Account, error) { if message.Chat { return nil, ErrNotWalletAccount } accAddress := types.BytesToAddress(message.Address) dbAccount, err := m.settings.GetAccountByAddress(accAddress) if err != nil && err != sql.ErrNoRows { return nil, err } if dbAccount != nil && message.Clock <= dbAccount.Clock { return nil, ErrTryingToStoreOldWalletAccount } var acc *accounts.Account if dbAccount != nil && message.Removed { acc = &accounts.Account{ Address: types.BytesToAddress(message.Address), Removed: true, } } else if !message.Removed { acc = &accounts.Account{ Address: types.BytesToAddress(message.Address), Wallet: message.Wallet, Chat: message.Chat, Type: accounts.AccountType(message.Type), Storage: message.Storage, PublicKey: types.HexBytes(message.PublicKey), Path: message.Path, Color: message.Color, Hidden: message.Hidden, Name: message.Name, Clock: message.Clock, KeyUID: message.KeyUid, Emoji: message.Emoji, DerivedFrom: message.DerivedFrom, KeypairName: message.KeypairName, LastUsedDerivationIndex: message.LastUsedDerivationIndex, } } err = m.settings.SaveAccounts([]*accounts.Account{acc}) if err != nil { return nil, err } return acc, nil } func (m *Messenger) HandleSyncWalletAccount(state *ReceivedMessageState, message protobuf.SyncWalletAccounts) error { var accs []*accounts.Account for _, accMsg := range message.Accounts { acc, err := m.handleSyncWalletAccount(accMsg) if err != nil { if err == ErrNotWalletAccount || err == ErrWalletAccountNotSupportedForMobileApp || err == ErrTryingToStoreOldWalletAccount || err == ErrSomeFieldsMissingForWalletAccount { continue } return err } accs = append(accs, acc) } state.Response.Accounts = accs return nil } func (m *Messenger) HandleSyncContactRequestDecision(state *ReceivedMessageState, message protobuf.SyncContactRequestDecision) error { var err error var response *MessengerResponse if message.DecisionStatus == protobuf.SyncContactRequestDecision_ACCEPTED { response, err = m.updateAcceptedContactRequest(nil, message.RequestId) } else { response, err = m.declineContactRequest(message.RequestId, true) } if err != nil { return err } state.Response = response return nil }