Fix/duplicate accept cr messages (#4367)

* fix: Duplicate 'Contact Added' Notifications When Pair-Device User Accepts Request

* bump version

VERSION

@@ -1 +1 @@
-0.171.27
+0.171.28

protocol/messenger.go

@@ -177,6 +177,9 @@ type Messenger struct {
 	processBackedupMessages bool
 
 	communityTokensService communitytokens.ServiceInterface
+
+	// used to track dispatched messages
+	dispatchMessageTestCallback func(common.RawMessage)
 }
 
 type connStatus int
@@ -2242,6 +2245,9 @@ func (m *Messenger) dispatchMessage(ctx context.Context, rawMessage common.RawMe
 		return rawMessage, err
 	}
 
+	if m.dispatchMessageTestCallback != nil {
+		m.dispatchMessageTestCallback(rawMessage)
+	}
 	return rawMessage, nil
 }
 

protocol/messenger_contacts.go

@@ -250,7 +250,7 @@ func (m *Messenger) SendContactRequest(ctx context.Context, request *requests.Se
 	)
 }
 
-func (m *Messenger) updateAcceptedContactRequest(response *MessengerResponse, contactRequestID string) (*MessengerResponse, error) {
+func (m *Messenger) updateAcceptedContactRequest(response *MessengerResponse, contactRequestID string, fromSyncing bool) (*MessengerResponse, error) {
 
 	m.logger.Debug("updateAcceptedContactRequest", zap.String("contactRequestID", contactRequestID))
 
@@ -286,23 +286,24 @@ func (m *Messenger) updateAcceptedContactRequest(response *MessengerResponse, co
 	clock, _ := chat.NextClockAndTimestamp(m.transport)
 	contact.AcceptContactRequest(clock)
 
-	acceptContactRequest := &protobuf.AcceptContactRequest{
-		Id:    contactRequest.ID,
-		Clock: clock,
-	}
-	encodedMessage, err := proto.Marshal(acceptContactRequest)
-	if err != nil {
-		return nil, err
-	}
-
-	_, err = m.dispatchMessage(context.Background(), common.RawMessage{
-		LocalChatID:         contactRequest.From,
-		Payload:             encodedMessage,
-		MessageType:         protobuf.ApplicationMetadataMessage_ACCEPT_CONTACT_REQUEST,
-		ResendAutomatically: true,
-	})
-	if err != nil {
-		return nil, err
+	if !fromSyncing {
+		acceptContactRequest := &protobuf.AcceptContactRequest{
+			Id:    contactRequest.ID,
+			Clock: clock,
+		}
+		encodedMessage, err := proto.Marshal(acceptContactRequest)
+		if err != nil {
+			return nil, err
+		}
+		_, err = m.dispatchMessage(context.Background(), common.RawMessage{
+			LocalChatID:         contactRequest.From,
+			Payload:             encodedMessage,
+			MessageType:         protobuf.ApplicationMetadataMessage_ACCEPT_CONTACT_REQUEST,
+			ResendAutomatically: true,
+		})
+		if err != nil {
+			return nil, err
+		}
 	}
 
 	if response == nil {
@@ -455,7 +456,7 @@ func (m *Messenger) addContact(ctx context.Context, pubKey, ensName, nickname, d
 	}
 
 	if len(contactRequestID) != 0 {
-		updatedResponse, err := m.updateAcceptedContactRequest(response, contactRequestID)
+		updatedResponse, err := m.updateAcceptedContactRequest(response, contactRequestID, false)
 		if err != nil {
 			return nil, err
 		}

protocol/messenger_handler.go

@@ -3576,7 +3576,7 @@ func (m *Messenger) HandleSyncContactRequestDecision(state *ReceivedMessageState
 	var response *MessengerResponse
 
 	if message.DecisionStatus == protobuf.SyncContactRequestDecision_ACCEPTED {
-		response, err = m.updateAcceptedContactRequest(nil, message.RequestId)
+		response, err = m.updateAcceptedContactRequest(nil, message.RequestId, true)
 	} else {
 		response, err = m.declineContactRequest(message.RequestId, true)
 	}

protocol/messenger_sync_contact_request_decision_test.go

@@ -0,0 +1,100 @@
+package protocol
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/suite"
+
+	"github.com/ethereum/go-ethereum/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"
+)
+
+type MessengerSyncContactRequestDecisionSuite struct {
+	MessengerBaseTestSuite
+	m2 *Messenger
+}
+
+func TestMessengerSyncContactRequestDecision(t *testing.T) {
+	suite.Run(t, new(MessengerSyncContactRequestDecisionSuite))
+}
+
+func (s *MessengerSyncContactRequestDecisionSuite) SetupTest() {
+	s.MessengerBaseTestSuite.SetupTest()
+
+	m2, err := newMessengerWithKey(s.shh, s.privateKey, s.logger, nil)
+	s.Require().NoError(err)
+	s.m2 = m2
+
+	PairDevices(&s.Suite, m2, s.m)
+	PairDevices(&s.Suite, s.m, m2)
+}
+
+func (s *MessengerSyncContactRequestDecisionSuite) TearDownTest() {
+	s.Require().NoError(s.m2.Shutdown())
+	s.MessengerBaseTestSuite.TearDownTest()
+}
+
+func (s *MessengerSyncContactRequestDecisionSuite) createUserB() *Messenger {
+	key, err := crypto.GenerateKey()
+	s.Require().NoError(err)
+	userB, err := newMessengerWithKey(s.shh, key, s.logger, nil)
+	s.Require().NoError(err)
+	return userB
+}
+
+func (s *MessengerSyncContactRequestDecisionSuite) TestSyncAcceptContactRequest() {
+	userB := s.createUserB()
+	defer func() {
+		s.Require().NoError(userB.Shutdown())
+	}()
+
+	numM1DispatchedAcceptContactRequest := 0
+	numM2DispatchedAcceptContactRequest := 0
+	s.m.dispatchMessageTestCallback = func(message common.RawMessage) {
+		if message.MessageType == protobuf.ApplicationMetadataMessage_ACCEPT_CONTACT_REQUEST {
+			numM1DispatchedAcceptContactRequest++
+		}
+	}
+	s.m2.dispatchMessageTestCallback = func(message common.RawMessage) {
+		if message.MessageType == protobuf.ApplicationMetadataMessage_ACCEPT_CONTACT_REQUEST {
+			numM2DispatchedAcceptContactRequest++
+		}
+	}
+	// send contact request to m/m2, m and m2 are paired
+	request := &requests.AddContact{ID: common.PubkeyToHex(&s.m2.identity.PublicKey)}
+	_, err := userB.AddContact(context.Background(), request)
+	s.Require().NoError(err)
+
+	// check m and m2 received contact request
+	var contactRequestMessageID types.HexBytes
+	receivedContactRequestCondition := func(r *MessengerResponse) bool {
+		for _, n := range r.ActivityCenterNotifications() {
+			if n.Type == ActivityCenterNotificationTypeContactRequest {
+				contactRequestMessageID = n.ID
+				return true
+			}
+		}
+		return false
+	}
+	_, err = WaitOnMessengerResponse(s.m, receivedContactRequestCondition, "contact request not received on device 1")
+	s.Require().NoError(err)
+	_, err = WaitOnMessengerResponse(s.m2, receivedContactRequestCondition, "contact request not received on device 2")
+	s.Require().NoError(err)
+
+	// m accept contact request from userB
+	_, err = s.m.AcceptContactRequest(context.Background(), &requests.AcceptContactRequest{ID: contactRequestMessageID})
+	s.Require().NoError(err)
+
+	// check sync contact request decision processed for m2
+	_, err = WaitOnMessengerResponse(s.m2, func(r *MessengerResponse) bool {
+		return len(r.Contacts) > 0
+	}, "contact request not accepted on device 2")
+	s.Require().NoError(err)
+
+	s.Require().Equal(1, numM1DispatchedAcceptContactRequest, "we should dispatch only 1 accept contact request message")
+	s.Require().Equal(0, numM2DispatchedAcceptContactRequest, "we should not dispatch accept contact request message")
+}