package protocol import ( "context" "strings" "github.com/pkg/errors" "go.uber.org/zap" "github.com/ethereum/go-ethereum/common/hexutil" "github.com/golang/protobuf/proto" "github.com/status-im/status-go/eth-node/crypto" "github.com/status-im/status-go/eth-node/types" "github.com/status-im/status-go/protocol/common" "github.com/status-im/status-go/protocol/protobuf" "github.com/status-im/status-go/protocol/requests" "github.com/status-im/status-go/protocol/verification" ) const minContactVerificationMessageLen = 1 const maxContactVerificationMessageLen = 280 func (m *Messenger) SendContactVerificationRequest(ctx context.Context, contactID string, challenge string) (*MessengerResponse, error) { if len(challenge) < minContactVerificationMessageLen || len(challenge) > maxContactVerificationMessageLen { return nil, errors.New("invalid verification request challenge length") } contact, ok := m.allContacts.Load(contactID) if !ok || !contact.Added || !contact.HasAddedUs { return nil, errors.New("must be a mutual contact") } verifRequest := &verification.Request{ From: common.PubkeyToHex(&m.identity.PublicKey), To: contact.ID, Challenge: challenge, RequestStatus: verification.RequestStatusPENDING, RepliedAt: 0, } chat, ok := m.allChats.Load(contactID) if !ok { publicKey, err := contact.PublicKey() if err != nil { return nil, err } chat = OneToOneFromPublicKey(publicKey, m.getTimesource()) // We don't want to show the chat to the user chat.Active = false } m.allChats.Store(chat.ID, chat) clock, _ := chat.NextClockAndTimestamp(m.getTimesource()) request := &protobuf.RequestContactVerification{ Clock: clock, Challenge: challenge, } encodedMessage, err := proto.Marshal(request) if err != nil { return nil, err } rawMessage, err := m.dispatchMessage(ctx, common.RawMessage{ LocalChatID: chat.ID, Payload: encodedMessage, MessageType: protobuf.ApplicationMetadataMessage_REQUEST_CONTACT_VERIFICATION, ResendAutomatically: true, }) if err != nil { return nil, err } contact.VerificationStatus = VerificationStatusVERIFYING contact.LastUpdatedLocally = m.getTimesource().GetCurrentTime() err = m.persistence.SaveContact(contact, nil) if err != nil { return nil, err } // We sync the contact with the other devices err = m.syncContact(context.Background(), contact, m.dispatchMessage) if err != nil { return nil, err } m.allContacts.Store(contact.ID, contact) verifRequest.RequestedAt = clock verifRequest.ID = rawMessage.ID err = m.verificationDatabase.SaveVerificationRequest(verifRequest) if err != nil { return nil, err } err = m.SyncVerificationRequest(context.Background(), verifRequest, m.dispatchMessage) if err != nil { return nil, err } chatMessage, err := m.createLocalContactVerificationMessage(request.Challenge, chat, rawMessage.ID, common.ContactVerificationStatePending) if err != nil { return nil, err } err = m.persistence.SaveMessages([]*common.Message{chatMessage}) if err != nil { return nil, err } response := &MessengerResponse{ VerificationRequests: []*verification.Request{verifRequest}, } err = m.createOrUpdateOutgoingContactVerificationNotification(contact, response, verifRequest, chatMessage, nil) if err != nil { return nil, err } response.AddMessage(chatMessage) m.prepareMessages(response.messages) return response, nil } func (m *Messenger) GetVerificationRequestSentTo(ctx context.Context, contactID string) (*verification.Request, error) { _, ok := m.allContacts.Load(contactID) if !ok { return nil, errors.New("contact not found") } return m.verificationDatabase.GetLatestVerificationRequestSentTo(contactID) } func (m *Messenger) GetReceivedVerificationRequests(ctx context.Context) ([]*verification.Request, error) { myPubKey := hexutil.Encode(crypto.FromECDSAPub(&m.identity.PublicKey)) return m.verificationDatabase.GetReceivedVerificationRequests(myPubKey) } func (m *Messenger) CancelVerificationRequest(ctx context.Context, id string) (*MessengerResponse, error) { verifRequest, err := m.verificationDatabase.GetVerificationRequest(id) if err != nil { return nil, err } if verifRequest == nil { m.logger.Error("could not find verification request with id", zap.String("id", id)) return nil, verification.ErrVerificationRequestNotFound } if verifRequest.From != common.PubkeyToHex(&m.identity.PublicKey) { return nil, errors.New("Can cancel only outgoing contact request") } contactID := verifRequest.To contact, ok := m.allContacts.Load(contactID) if !ok || !contact.Added || !contact.HasAddedUs { return nil, errors.New("Can't find contact for canceling verification request") } if verifRequest.RequestStatus != verification.RequestStatusPENDING { return nil, errors.New("can cancel only pending verification request") } verifRequest.RequestStatus = verification.RequestStatusCANCELED err = m.verificationDatabase.SaveVerificationRequest(verifRequest) if err != nil { return nil, err } contact.VerificationStatus = VerificationStatusUNVERIFIED contact.LastUpdatedLocally = m.getTimesource().GetCurrentTime() err = m.persistence.SaveContact(contact, nil) if err != nil { return nil, err } // We sync the contact with the other devices err = m.syncContact(context.Background(), contact, m.dispatchMessage) if err != nil { return nil, err } m.allContacts.Store(contact.ID, contact) // NOTE: does we need it? chat, ok := m.allChats.Load(verifRequest.To) if !ok { publicKey, err := contact.PublicKey() if err != nil { return nil, err } chat = OneToOneFromPublicKey(publicKey, m.getTimesource()) // We don't want to show the chat to the user chat.Active = false } m.allChats.Store(chat.ID, chat) clock, _ := chat.NextClockAndTimestamp(m.getTimesource()) response := &MessengerResponse{} response.AddVerificationRequest(verifRequest) err = m.SyncVerificationRequest(context.Background(), verifRequest, m.dispatchMessage) if err != nil { return nil, err } request := &protobuf.CancelContactVerification{ Id: id, Clock: clock, } encodedMessage, err := proto.Marshal(request) if err != nil { return nil, err } _, err = m.dispatchMessage(ctx, common.RawMessage{ LocalChatID: chat.ID, Payload: encodedMessage, MessageType: protobuf.ApplicationMetadataMessage_CANCEL_CONTACT_VERIFICATION, ResendAutomatically: true, }) if err != nil { return nil, err } notification, err := m.persistence.GetActivityCenterNotificationByID(types.FromHex(id)) if err != nil { return nil, err } if notification != nil { err := m.persistence.UpdateActivityCenterNotificationContactVerificationStatus(notification.ID, verification.RequestStatusCANCELED) if err != nil { return nil, err } notification.ContactVerificationStatus = verification.RequestStatusCANCELED message := notification.Message message.ContactVerificationState = common.ContactVerificationStateCanceled err = m.persistence.UpdateActivityCenterNotificationMessage(notification.ID, message) if err != nil { return nil, err } response.AddActivityCenterNotification(notification) } return response, nil } func (m *Messenger) AcceptContactVerificationRequest(ctx context.Context, id string, response string) (*MessengerResponse, error) { verifRequest, err := m.verificationDatabase.GetVerificationRequest(id) if err != nil { return nil, err } if verifRequest == nil { m.logger.Error("could not find verification request with id", zap.String("id", id)) return nil, verification.ErrVerificationRequestNotFound } contactID := verifRequest.From contact, ok := m.allContacts.Load(contactID) if !ok || !contact.Added || !contact.HasAddedUs { return nil, errors.New("must be a mutual contact") } chat, ok := m.allChats.Load(contactID) if !ok { publicKey, err := contact.PublicKey() if err != nil { return nil, err } chat = OneToOneFromPublicKey(publicKey, m.getTimesource()) // We don't want to show the chat to the user chat.Active = false } m.allChats.Store(chat.ID, chat) clock, _ := chat.NextClockAndTimestamp(m.getTimesource()) err = m.verificationDatabase.AcceptContactVerificationRequest(id, response) if err != nil { return nil, err } verifRequest, err = m.verificationDatabase.GetVerificationRequest(id) if err != nil { return nil, err } err = m.SyncVerificationRequest(context.Background(), verifRequest, m.dispatchMessage) if err != nil { return nil, err } request := &protobuf.AcceptContactVerification{ Clock: clock, Id: verifRequest.ID, Response: response, } encodedMessage, err := proto.Marshal(request) if err != nil { return nil, err } rawMessage, err := m.dispatchMessage(ctx, common.RawMessage{ LocalChatID: chat.ID, Payload: encodedMessage, MessageType: protobuf.ApplicationMetadataMessage_ACCEPT_CONTACT_VERIFICATION, ResendAutomatically: true, }) if err != nil { return nil, err } // Pull one from the db if there notification, err := m.persistence.GetActivityCenterNotificationByID(types.FromHex(id)) if err != nil { return nil, err } resp := &MessengerResponse{ VerificationRequests: []*verification.Request{verifRequest}, } replyMessage, err := m.createLocalContactVerificationMessage(response, chat, rawMessage.ID, common.ContactVerificationStateAccepted) if err != nil { return nil, err } err = m.persistence.SaveMessages([]*common.Message{replyMessage}) if err != nil { return nil, err } resp.AddMessage(replyMessage) if notification != nil { // TODO: Should we update only the message or only the notification or both? notification.ContactVerificationStatus = verification.RequestStatusACCEPTED message := notification.Message message.ContactVerificationState = common.ContactVerificationStateAccepted notification.ReplyMessage = replyMessage err := m.persistence.UpdateActivityCenterNotificationFields(notification.ID, message, replyMessage, verification.RequestStatusACCEPTED) if err != nil { return nil, err } resp.AddActivityCenterNotification(notification) } return resp, nil } func (m *Messenger) VerifiedTrusted(ctx context.Context, request *requests.VerifiedTrusted) (*MessengerResponse, error) { err := request.Validate() if err != nil { return nil, err } // Pull one from the db if there notification, err := m.persistence.GetActivityCenterNotificationByID(request.ID) if err != nil { return nil, err } if notification == nil || notification.ReplyMessage == nil { return nil, errors.New("could not find notification") } contactID := notification.ReplyMessage.From contact, ok := m.allContacts.Load(contactID) if !ok || !contact.Added || !contact.HasAddedUs { return nil, errors.New("must be a mutual contact") } err = m.verificationDatabase.SetTrustStatus(contactID, verification.TrustStatusTRUSTED, m.getTimesource().GetCurrentTime()) if err != nil { return nil, err } err = m.SyncTrustedUser(context.Background(), contactID, verification.TrustStatusTRUSTED, m.dispatchMessage) if err != nil { return nil, err } contact.VerificationStatus = VerificationStatusVERIFIED contact.LastUpdatedLocally = m.getTimesource().GetCurrentTime() err = m.persistence.SaveContact(contact, nil) if err != nil { return nil, err } chat, ok := m.allChats.Load(contactID) clock, _ := chat.NextClockAndTimestamp(m.getTimesource()) if !ok { publicKey, err := contact.PublicKey() if err != nil { return nil, err } chat = OneToOneFromPublicKey(publicKey, m.getTimesource()) // We don't want to show the chat to the user chat.Active = false } verifRequest, err := m.verificationDatabase.GetLatestVerificationRequestSentTo(contactID) if err != nil { return nil, err } if verifRequest == nil { return nil, errors.New("no contact verification found") } verifRequest.RequestStatus = verification.RequestStatusTRUSTED verifRequest.RepliedAt = clock err = m.verificationDatabase.SaveVerificationRequest(verifRequest) if err != nil { return nil, err } err = m.SyncVerificationRequest(context.Background(), verifRequest, m.dispatchMessage) if err != nil { return nil, err } // We sync the contact with the other devices err = m.syncContact(context.Background(), contact, m.dispatchMessage) if err != nil { return nil, err } response := &MessengerResponse{} notification.ContactVerificationStatus = verification.RequestStatusTRUSTED notification.Message.ContactVerificationState = common.ContactVerificationStateTrusted err = m.persistence.UpdateActivityCenterNotificationFields(notification.ID, notification.Message, notification.ReplyMessage, notification.ContactVerificationStatus) if err != nil { return nil, err } msg, err := m.persistence.MessageByID(notification.ReplyMessage.ID) if err != nil { return nil, err } msg.ContactVerificationState = common.ContactVerificationStateTrusted err = m.persistence.SaveMessages([]*common.Message{msg}) if err != nil { return nil, err } response.AddMessage(msg) response.AddActivityCenterNotification(notification) return response, nil } func (m *Messenger) VerifiedUntrustworthy(ctx context.Context, request *requests.VerifiedUntrustworthy) (*MessengerResponse, error) { if err := request.Validate(); err != nil { return nil, err } // Pull one from the db if there notification, err := m.persistence.GetActivityCenterNotificationByID(request.ID) if err != nil { return nil, err } if notification == nil || notification.ReplyMessage == nil { return nil, errors.New("could not find notification") } contactID := notification.ReplyMessage.From contact, ok := m.allContacts.Load(contactID) if !ok || !contact.Added || !contact.HasAddedUs { return nil, errors.New("must be a mutual contact") } err = m.verificationDatabase.SetTrustStatus(contactID, verification.TrustStatusUNTRUSTWORTHY, m.getTimesource().GetCurrentTime()) if err != nil { return nil, err } err = m.SyncTrustedUser(context.Background(), contactID, verification.TrustStatusUNTRUSTWORTHY, m.dispatchMessage) if err != nil { return nil, err } contact.VerificationStatus = VerificationStatusVERIFIED contact.LastUpdatedLocally = m.getTimesource().GetCurrentTime() err = m.persistence.SaveContact(contact, nil) if err != nil { return nil, err } chat, ok := m.allChats.Load(contactID) clock, _ := chat.NextClockAndTimestamp(m.getTimesource()) if !ok { publicKey, err := contact.PublicKey() if err != nil { return nil, err } chat = OneToOneFromPublicKey(publicKey, m.getTimesource()) // We don't want to show the chat to the user chat.Active = false } verifRequest, err := m.verificationDatabase.GetLatestVerificationRequestSentTo(contactID) if err != nil { return nil, err } if verifRequest == nil { return nil, errors.New("no contact verification found") } verifRequest.RequestStatus = verification.RequestStatusUNTRUSTWORTHY verifRequest.RepliedAt = clock err = m.verificationDatabase.SaveVerificationRequest(verifRequest) if err != nil { return nil, err } err = m.SyncVerificationRequest(context.Background(), verifRequest, m.dispatchMessage) if err != nil { return nil, err } // We sync the contact with the other devices err = m.syncContact(context.Background(), contact, m.dispatchMessage) if err != nil { return nil, err } response := &MessengerResponse{} notification.ContactVerificationStatus = verification.RequestStatusUNTRUSTWORTHY notification.Message.ContactVerificationState = common.ContactVerificationStateUntrustworthy err = m.persistence.UpdateActivityCenterNotificationFields(notification.ID, notification.Message, notification.ReplyMessage, notification.ContactVerificationStatus) if err != nil { return nil, err } msg, err := m.persistence.MessageByID(notification.ReplyMessage.ID) if err != nil { return nil, err } msg.ContactVerificationState = common.ContactVerificationStateUntrustworthy err = m.persistence.SaveMessages([]*common.Message{msg}) if err != nil { return nil, err } response.AddMessage(msg) response.AddActivityCenterNotification(notification) return response, nil } func (m *Messenger) DeclineContactVerificationRequest(ctx context.Context, id string) (*MessengerResponse, error) { verifRequest, err := m.verificationDatabase.GetVerificationRequest(id) if err != nil { return nil, err } if verifRequest == nil { m.logger.Error("could not find verification request with id", zap.String("id", id)) return nil, verification.ErrVerificationRequestNotFound } contact, ok := m.allContacts.Load(verifRequest.From) if !ok || !contact.Added || !contact.HasAddedUs { return nil, errors.New("must be a mutual contact") } if verifRequest == nil { return nil, errors.New("no contact verification found") } chat, ok := m.allChats.Load(verifRequest.From) if !ok { publicKey, err := contact.PublicKey() if err != nil { return nil, err } chat = OneToOneFromPublicKey(publicKey, m.getTimesource()) // We don't want to show the chat to the user chat.Active = false } m.allChats.Store(chat.ID, chat) clock, _ := chat.NextClockAndTimestamp(m.getTimesource()) verifRequest.RequestStatus = verification.RequestStatusDECLINED verifRequest.RepliedAt = clock err = m.verificationDatabase.SaveVerificationRequest(verifRequest) if err != nil { return nil, err } response := &MessengerResponse{} response.AddVerificationRequest(verifRequest) err = m.SyncVerificationRequest(context.Background(), verifRequest, m.dispatchMessage) if err != nil { return nil, err } request := &protobuf.DeclineContactVerification{ Id: id, Clock: clock, } encodedMessage, err := proto.Marshal(request) if err != nil { return nil, err } _, err = m.dispatchMessage(ctx, common.RawMessage{ LocalChatID: chat.ID, Payload: encodedMessage, MessageType: protobuf.ApplicationMetadataMessage_DECLINE_CONTACT_VERIFICATION, ResendAutomatically: true, }) if err != nil { return nil, err } err = m.verificationDatabase.DeclineContactVerificationRequest(id) if err != nil { return nil, err } notification, err := m.persistence.GetActivityCenterNotificationByID(types.FromHex(id)) if err != nil { return nil, err } if notification != nil { // TODO: Should we update only the message or only the notification or both? err := m.persistence.UpdateActivityCenterNotificationContactVerificationStatus(notification.ID, verification.RequestStatusDECLINED) if err != nil { return nil, err } notification.ContactVerificationStatus = verification.RequestStatusDECLINED message := notification.Message message.ContactVerificationState = common.ContactVerificationStateDeclined err = m.persistence.UpdateActivityCenterNotificationMessage(notification.ID, message) if err != nil { return nil, err } response.AddActivityCenterNotification(notification) response.AddMessage(message) } return response, nil } func (m *Messenger) MarkAsTrusted(ctx context.Context, contactID string) error { err := m.verificationDatabase.SetTrustStatus(contactID, verification.TrustStatusTRUSTED, m.getTimesource().GetCurrentTime()) if err != nil { return err } return m.SyncTrustedUser(ctx, contactID, verification.TrustStatusTRUSTED, m.dispatchMessage) } func (m *Messenger) MarkAsUntrustworthy(ctx context.Context, contactID string) error { err := m.verificationDatabase.SetTrustStatus(contactID, verification.TrustStatusUNTRUSTWORTHY, m.getTimesource().GetCurrentTime()) if err != nil { return err } return m.SyncTrustedUser(ctx, contactID, verification.TrustStatusUNTRUSTWORTHY, m.dispatchMessage) } func (m *Messenger) RemoveTrustStatus(ctx context.Context, contactID string) error { err := m.verificationDatabase.SetTrustStatus(contactID, verification.TrustStatusUNKNOWN, m.getTimesource().GetCurrentTime()) if err != nil { return err } return m.SyncTrustedUser(ctx, contactID, verification.TrustStatusUNKNOWN, m.dispatchMessage) } func (m *Messenger) GetTrustStatus(contactID string) (verification.TrustStatus, error) { return m.verificationDatabase.GetTrustStatus(contactID) } func ValidateContactVerificationRequest(request protobuf.RequestContactVerification) error { challengeLen := len(strings.TrimSpace(request.Challenge)) if challengeLen < minContactVerificationMessageLen || challengeLen > maxContactVerificationMessageLen { return errors.New("invalid verification request challenge length") } return nil } func (m *Messenger) HandleRequestContactVerification(state *ReceivedMessageState, request protobuf.RequestContactVerification) error { if err := ValidateContactVerificationRequest(request); err != nil { m.logger.Debug("Invalid verification request", zap.Error(err)) return err } id := state.CurrentMessageState.MessageID if common.IsPubKeyEqual(state.CurrentMessageState.PublicKey, &m.identity.PublicKey) { return nil // Is ours, do nothing } myPubKey := hexutil.Encode(crypto.FromECDSAPub(&m.identity.PublicKey)) contactID := hexutil.Encode(crypto.FromECDSAPub(state.CurrentMessageState.PublicKey)) contact := state.CurrentMessageState.Contact if !contact.Added || !contact.HasAddedUs { m.logger.Debug("Received a verification request for a non added mutual contact", zap.String("contactID", contactID)) return errors.New("must be a mutual contact") } persistedVR, err := m.verificationDatabase.GetVerificationRequest(id) if err != nil { m.logger.Debug("Error obtaining verification request", zap.Error(err)) return err } if persistedVR != nil && persistedVR.RequestedAt > request.Clock { return nil // older message, ignore it } if persistedVR == nil { // This is a new verification request, and we have not received its acceptance/decline before persistedVR = &verification.Request{} persistedVR.ID = id persistedVR.From = contactID persistedVR.To = myPubKey persistedVR.RequestStatus = verification.RequestStatusPENDING } if persistedVR.From != contactID { return errors.New("mismatch contactID and ID") } persistedVR.Challenge = request.Challenge persistedVR.RequestedAt = request.Clock err = m.verificationDatabase.SaveVerificationRequest(persistedVR) if err != nil { m.logger.Debug("Error storing verification request", zap.Error(err)) return err } m.logger.Info("SAVED", zap.String("id", persistedVR.ID)) err = m.SyncVerificationRequest(context.Background(), persistedVR, m.dispatchMessage) if err != nil { return err } chat, ok := m.allChats.Load(contactID) if !ok { publicKey, err := contact.PublicKey() if err != nil { return err } chat = OneToOneFromPublicKey(publicKey, m.getTimesource()) // We don't want to show the chat to the user chat.Active = false } m.allChats.Store(chat.ID, chat) chatMessage, err := m.createContactVerificationMessage(request.Challenge, chat, state, common.ContactVerificationStatePending) if err != nil { return err } state.Response.AddMessage(chatMessage) state.AllVerificationRequests = append(state.AllVerificationRequests, persistedVR) return m.createOrUpdateIncomingContactVerificationNotification(contact, state, persistedVR, chatMessage, nil) } func ValidateAcceptContactVerification(request protobuf.AcceptContactVerification) error { responseLen := len(strings.TrimSpace(request.Response)) if responseLen < minContactVerificationMessageLen || responseLen > maxContactVerificationMessageLen { return errors.New("invalid verification request response length") } return nil } func (m *Messenger) HandleAcceptContactVerification(state *ReceivedMessageState, request protobuf.AcceptContactVerification) error { if err := ValidateAcceptContactVerification(request); err != nil { m.logger.Debug("Invalid AcceptContactVerification", zap.Error(err)) return err } if common.IsPubKeyEqual(state.CurrentMessageState.PublicKey, &m.identity.PublicKey) { return nil // Is ours, do nothing } myPubKey := hexutil.Encode(crypto.FromECDSAPub(&m.identity.PublicKey)) contactID := hexutil.Encode(crypto.FromECDSAPub(state.CurrentMessageState.PublicKey)) contact := state.CurrentMessageState.Contact if !contact.Added || !contact.HasAddedUs { m.logger.Debug("Received a verification response for a non mutual contact", zap.String("contactID", contactID)) return errors.New("must be a mutual contact") } persistedVR, err := m.verificationDatabase.GetVerificationRequest(request.Id) if err != nil { m.logger.Debug("Error obtaining verification request", zap.Error(err)) return err } if persistedVR != nil && persistedVR.RepliedAt > request.Clock { return nil // older message, ignore it } if persistedVR.RequestStatus == verification.RequestStatusCANCELED { return nil // Do nothing, We have already cancelled the verification request } if persistedVR == nil { // This is a response for which we have not received its request before persistedVR = &verification.Request{} persistedVR.ID = request.Id persistedVR.From = contactID persistedVR.To = myPubKey } persistedVR.RequestStatus = verification.RequestStatusACCEPTED persistedVR.Response = request.Response persistedVR.RepliedAt = request.Clock err = m.verificationDatabase.SaveVerificationRequest(persistedVR) if err != nil { m.logger.Debug("Error storing verification request", zap.Error(err)) return err } err = m.SyncVerificationRequest(context.Background(), persistedVR, m.dispatchMessage) if err != nil { return err } chat, ok := m.allChats.Load(contactID) if !ok { publicKey, err := contact.PublicKey() if err != nil { return err } chat = OneToOneFromPublicKey(publicKey, m.getTimesource()) // We don't want to show the chat to the user chat.Active = false } m.allChats.Store(chat.ID, chat) chatMessage, err := m.createContactVerificationMessage(request.Response, chat, state, common.ContactVerificationStateAccepted) if err != nil { return err } state.Response.AddMessage(chatMessage) msg, err := m.persistence.MessageByID(request.Id) if err != nil { return err } msg.ContactVerificationState = common.ContactVerificationStateAccepted state.Response.AddMessage(msg) err = m.createOrUpdateOutgoingContactVerificationNotification(contact, state.Response, persistedVR, msg, chatMessage) if err != nil { return err } state.AllVerificationRequests = append(state.AllVerificationRequests, persistedVR) return nil } func (m *Messenger) HandleDeclineContactVerification(state *ReceivedMessageState, request protobuf.DeclineContactVerification) error { if common.IsPubKeyEqual(state.CurrentMessageState.PublicKey, &m.identity.PublicKey) { return nil // Is ours, do nothing } myPubKey := hexutil.Encode(crypto.FromECDSAPub(&m.identity.PublicKey)) contactID := hexutil.Encode(crypto.FromECDSAPub(state.CurrentMessageState.PublicKey)) contact := state.CurrentMessageState.Contact if !contact.Added || !contact.HasAddedUs { m.logger.Debug("Received a verification decline for a non mutual contact", zap.String("contactID", contactID)) return errors.New("must be a mutual contact") } persistedVR, err := m.verificationDatabase.GetVerificationRequest(request.Id) if err != nil { m.logger.Debug("Error obtaining verification request", zap.Error(err)) return err } if persistedVR != nil && persistedVR.RepliedAt > request.Clock { return nil // older message, ignore it } if persistedVR.RequestStatus == verification.RequestStatusCANCELED { return nil // Do nothing, We have already cancelled the verification request } if persistedVR == nil { // This is a response for which we have not received its request before persistedVR = &verification.Request{} persistedVR.From = contactID persistedVR.To = myPubKey } persistedVR.RequestStatus = verification.RequestStatusDECLINED persistedVR.RepliedAt = request.Clock err = m.verificationDatabase.SaveVerificationRequest(persistedVR) if err != nil { m.logger.Debug("Error storing verification request", zap.Error(err)) return err } err = m.SyncVerificationRequest(context.Background(), persistedVR, m.dispatchMessage) if err != nil { return err } state.AllVerificationRequests = append(state.AllVerificationRequests, persistedVR) msg, err := m.persistence.MessageByID(request.Id) if err != nil { return err } if msg != nil { msg.ContactVerificationState = common.ContactVerificationStateDeclined state.Response.AddMessage(msg) } return m.createOrUpdateOutgoingContactVerificationNotification(contact, state.Response, persistedVR, msg, nil) } func (m *Messenger) HandleCancelContactVerification(state *ReceivedMessageState, request protobuf.CancelContactVerification) error { myPubKey := hexutil.Encode(crypto.FromECDSAPub(&m.identity.PublicKey)) contactID := hexutil.Encode(crypto.FromECDSAPub(state.CurrentMessageState.PublicKey)) contact := state.CurrentMessageState.Contact persistedVR, err := m.verificationDatabase.GetVerificationRequest(request.Id) if err != nil { m.logger.Debug("Error obtaining verification request", zap.Error(err)) return err } if persistedVR != nil && persistedVR.RequestStatus != verification.RequestStatusPENDING { m.logger.Debug("Only pending verification request can be canceled", zap.String("contactID", contactID)) return errors.New("must be a pending verification request") } if persistedVR == nil { // This is a response for which we have not received its request before persistedVR = &verification.Request{} persistedVR.From = contactID persistedVR.To = myPubKey } persistedVR.RequestStatus = verification.RequestStatusCANCELED persistedVR.RepliedAt = request.Clock err = m.verificationDatabase.SaveVerificationRequest(persistedVR) if err != nil { m.logger.Debug("Error storing verification request", zap.Error(err)) return err } err = m.SyncVerificationRequest(context.Background(), persistedVR, m.dispatchMessage) if err != nil { return err } state.AllVerificationRequests = append(state.AllVerificationRequests, persistedVR) msg, err := m.persistence.MessageByID(request.Id) if err != nil { return err } if msg != nil { msg.ContactVerificationState = common.ContactVerificationStateCanceled state.Response.AddMessage(msg) } return m.createOrUpdateIncomingContactVerificationNotification(contact, state, persistedVR, msg, nil) } func (m *Messenger) GetLatestVerificationRequestFrom(contactID string) (*verification.Request, error) { return m.verificationDatabase.GetLatestVerificationRequestFrom(contactID) } func (m *Messenger) createOrUpdateOutgoingContactVerificationNotification(contact *Contact, response *MessengerResponse, vr *verification.Request, chatMessage *common.Message, replyMessage *common.Message) error { notification := &ActivityCenterNotification{ ID: types.FromHex(vr.ID), Name: contact.CanonicalName(), Type: ActivityCenterNotificationTypeContactVerification, Author: chatMessage.From, Message: chatMessage, ReplyMessage: replyMessage, Timestamp: chatMessage.WhisperTimestamp, ChatID: contact.ID, ContactVerificationStatus: vr.RequestStatus, } return m.addActivityCenterNotification(response, notification) } func (m *Messenger) createOrUpdateIncomingContactVerificationNotification(contact *Contact, messageState *ReceivedMessageState, vr *verification.Request, chatMessage *common.Message, replyMessage *common.Message) error { notification := &ActivityCenterNotification{ ID: types.FromHex(vr.ID), Name: contact.CanonicalName(), Type: ActivityCenterNotificationTypeContactVerification, Author: messageState.CurrentMessageState.Contact.ID, Message: chatMessage, ReplyMessage: replyMessage, Timestamp: messageState.CurrentMessageState.WhisperTimestamp, ChatID: contact.ID, ContactVerificationStatus: vr.RequestStatus, } return m.addActivityCenterNotification(messageState.Response, notification) } func (m *Messenger) createContactVerificationMessage(challenge string, chat *Chat, state *ReceivedMessageState, verificationStatus common.ContactVerificationState) (*common.Message, error) { chatMessage := &common.Message{} chatMessage.ID = state.CurrentMessageState.MessageID chatMessage.From = state.CurrentMessageState.Contact.ID chatMessage.Alias = state.CurrentMessageState.Contact.Alias chatMessage.SigPubKey = state.CurrentMessageState.PublicKey chatMessage.Identicon = state.CurrentMessageState.Contact.Identicon chatMessage.WhisperTimestamp = state.CurrentMessageState.WhisperTimestamp chatMessage.ChatId = chat.ID chatMessage.Text = challenge chatMessage.ContentType = protobuf.ChatMessage_IDENTITY_VERIFICATION chatMessage.ContactVerificationState = verificationStatus err := chatMessage.PrepareContent(common.PubkeyToHex(&m.identity.PublicKey)) if err != nil { return nil, err } return chatMessage, nil } func (m *Messenger) createLocalContactVerificationMessage(challenge string, chat *Chat, id string, status common.ContactVerificationState) (*common.Message, error) { chatMessage := &common.Message{} chatMessage.ID = id err := extendMessageFromChat(chatMessage, chat, &m.identity.PublicKey, m.getTimesource()) if err != nil { return nil, err } chatMessage.ChatId = chat.ID chatMessage.Text = challenge chatMessage.ContentType = protobuf.ChatMessage_IDENTITY_VERIFICATION chatMessage.ContactVerificationState = status err = extendMessageFromChat(chatMessage, chat, &m.identity.PublicKey, m.getTimesource()) if err != nil { return nil, err } err = chatMessage.PrepareContent(common.PubkeyToHex(&m.identity.PublicKey)) if err != nil { return nil, err } return chatMessage, nil }