Sync clear history

VERSION

@@ -1 +1 @@
-0.94.2
+0.94.3

protocol/message_persistence.go

@@ -1298,6 +1298,55 @@ func (db sqlitePersistence) deleteMessagesByChatID(id string, tx *sql.Tx) (err e
 	return
 }
 
+func (db sqlitePersistence) deleteMessagesByChatIDAndClockValueLessThanOrEqual(id string, clock uint64, tx *sql.Tx) (unViewedMessages, unViewedMentions uint, err error) {
+	if tx == nil {
+		tx, err = db.db.BeginTx(context.Background(), &sql.TxOptions{})
+		if err != nil {
+			return 0, 0, err
+		}
+		defer func() {
+			if err == nil {
+				err = tx.Commit()
+				return
+			}
+			// don't shadow original error
+			_ = tx.Rollback()
+		}()
+	}
+
+	_, err = tx.Exec(`DELETE FROM user_messages WHERE local_chat_id = ? AND clock_value <= ?`, id, clock)
+	if err != nil {
+		return
+	}
+
+	_, err = tx.Exec(`DELETE FROM pin_messages WHERE local_chat_id = ? AND clock_value <= ?`, id, clock)
+	if err != nil {
+		return
+	}
+
+	_, err = tx.Exec(
+		`UPDATE chats
+		   SET unviewed_message_count =
+		   (SELECT COUNT(1)
+		   FROM user_messages
+		   WHERE local_chat_id = ? AND seen = 0),
+		   unviewed_mentions_count =
+		   (SELECT COUNT(1)
+		   FROM user_messages
+		   WHERE local_chat_id = ? AND seen = 0 AND mentioned),
+                   highlight = 0
+		WHERE id = ?`, id, id, id)
+
+	if err != nil {
+		return 0, 0, err
+	}
+
+	err = tx.QueryRow(`SELECT unviewed_message_count, unviewed_mentions_count FROM chats 
+				WHERE id = ?`, id).Scan(&unViewedMessages, &unViewedMentions)
+
+	return
+}
+
 func (db sqlitePersistence) MarkAllRead(chatID string, clock uint64) (int64, int64, error) {
 	tx, err := db.db.BeginTx(context.Background(), &sql.TxOptions{})
 	if err != nil {
@@ -1719,6 +1768,27 @@ func (db sqlitePersistence) ClearHistory(chat *Chat, currentClockValue uint64) (
 	return
 }
 
+func (db sqlitePersistence) ClearHistoryFromSyncMessage(chat *Chat, currentClockValue uint64) (err error) {
+	var tx *sql.Tx
+
+	tx, err = db.db.BeginTx(context.Background(), &sql.TxOptions{})
+	if err != nil {
+		return
+	}
+
+	defer func() {
+		if err == nil {
+			err = tx.Commit()
+			return
+		}
+		// don't shadow original error
+		_ = tx.Rollback()
+	}()
+	err = db.clearHistoryFromSyncMessage(chat, currentClockValue, tx)
+
+	return
+}
+
 // Deactivate chat sets a chat as inactive and clear its history
 func (db sqlitePersistence) DeactivateChat(chat *Chat, currentClockValue uint64) (err error) {
 	var tx *sql.Tx
@@ -1829,3 +1899,27 @@ func (db sqlitePersistence) clearHistory(chat *Chat, currentClockValue uint64, t
 	err = db.saveChat(tx, *chat)
 	return err
 }
+
+func (db sqlitePersistence) clearHistoryFromSyncMessage(chat *Chat, clearedAt uint64, tx *sql.Tx) error {
+	chat.DeletedAtClockValue = clearedAt
+
+	// Reset synced-to/from
+	syncedTo := uint32(clearedAt / 1000)
+	chat.SyncedTo = syncedTo
+	chat.SyncedFrom = 0
+
+	unViewedMessagesCount, unViewedMentionsCount, err := db.deleteMessagesByChatIDAndClockValueLessThanOrEqual(chat.ID, clearedAt, tx)
+	if err != nil {
+		return err
+	}
+
+	chat.UnviewedMessagesCount = unViewedMessagesCount
+	chat.UnviewedMentionsCount = unViewedMentionsCount
+
+	if chat.LastMessage != nil && chat.LastMessage.Clock <= clearedAt {
+		chat.LastMessage = nil
+	}
+
+	err = db.saveChat(tx, *chat)
+	return err
+}

protocol/messenger.go

@@ -2456,6 +2456,13 @@ func (m *Messenger) SyncDevices(ctx context.Context, ensName, photoPath string)
 			}
 		}
 
+		if isPublicChat && chat.Active && chat.DeletedAtClockValue > 0 {
+			err = m.syncClearHistory(ctx, chat)
+			if err != nil {
+				return false
+			}
+		}
+
 		return true
 	})
 	if err != nil {
@@ -2578,6 +2585,37 @@ func (m *Messenger) syncPublicChat(ctx context.Context, publicChat *Chat) error
 	return m.saveChat(chat)
 }
 
+func (m *Messenger) syncClearHistory(ctx context.Context, publicChat *Chat) error {
+	var err error
+	if !m.hasPairedDevices() {
+		return nil
+	}
+	clock, chat := m.getLastClockWithRelatedChat()
+
+	syncMessage := &protobuf.SyncClearHistory{
+		ChatId:    publicChat.ID,
+		ClearedAt: publicChat.DeletedAtClockValue,
+	}
+
+	encodedMessage, err := proto.Marshal(syncMessage)
+	if err != nil {
+		return err
+	}
+
+	_, err = m.dispatchMessage(ctx, common.RawMessage{
+		LocalChatID:         chat.ID,
+		Payload:             encodedMessage,
+		MessageType:         protobuf.ApplicationMetadataMessage_SYNC_CLEAR_HISTORY,
+		ResendAutomatically: true,
+	})
+	if err != nil {
+		return err
+	}
+
+	chat.LastClockValue = clock
+	return m.saveChat(chat)
+}
+
 func (m *Messenger) syncChatRemoving(ctx context.Context, id string) error {
 	var err error
 	if !m.hasPairedDevices() {
@@ -3045,6 +3083,21 @@ func (m *Messenger) handleRetrievedMessages(chatWithMessages map[transport.Filte
 							continue
 						}
 
+					case protobuf.SyncClearHistory:
+						if !common.IsPubKeyEqual(messageState.CurrentMessageState.PublicKey, &m.identity.PublicKey) {
+							logger.Warn("not coming from us, ignoring")
+							continue
+						}
+
+						p := msg.ParsedMessage.Interface().(protobuf.SyncClearHistory)
+						logger.Debug("Handling SyncClearHistory", zap.Any("message", p))
+						err = m.handleSyncClearHistory(messageState, p)
+						if err != nil {
+							logger.Warn("failed to handle SyncClearHistory", zap.Error(err))
+							allMessagesProcessed = false
+							continue
+						}
+
 					case protobuf.Backup:
 						if !common.IsPubKeyEqual(messageState.CurrentMessageState.PublicKey, &m.identity.PublicKey) {
 							logger.Warn("not coming from us, ignoring")
@@ -5063,3 +5116,35 @@ func (m *Messenger) getSettings() (accounts.Settings, error) {
 	sDB := accounts.NewDB(m.database)
 	return sDB.GetSettings()
 }
+
+func (m *Messenger) handleSyncClearHistory(state *ReceivedMessageState, message protobuf.SyncClearHistory) error {
+	chatID := message.ChatId
+	existingChat, ok := state.AllChats.Load(chatID)
+	if !ok {
+		return ErrChatNotFound
+	}
+
+	if existingChat.DeletedAtClockValue >= message.ClearedAt {
+		return nil
+	}
+
+	err := m.persistence.ClearHistoryFromSyncMessage(existingChat, message.ClearedAt)
+	if err != nil {
+		return err
+	}
+
+	if existingChat.Public() {
+		err = m.transport.ClearProcessedMessageIDsCache()
+		if err != nil {
+			return err
+		}
+	}
+
+	state.AllChats.Store(chatID, existingChat)
+	state.Response.AddChat(existingChat)
+	state.Response.AddClearedHistory(&ClearedHistory{
+		ClearedAt: message.ClearedAt,
+		ChatID:    chatID,
+	})
+	return nil
+}

protocol/messenger_chats.go

@@ -558,13 +558,17 @@ func (m *Messenger) clearHistory(id string) (*MessengerResponse, error) {
 	}
 
 	if chat.Public() {
-
 		err = m.transport.ClearProcessedMessageIDsCache()
 		if err != nil {
 			return nil, err
 		}
 	}
 
+	err = m.syncClearHistory(context.Background(), chat)
+	if err != nil {
+		return nil, err
+	}
+
 	m.allChats.Store(id, chat)
 
 	response := &MessengerResponse{}

protocol/messenger_response.go

@@ -16,6 +16,11 @@ type RemovedMessage struct {
 	MessageID string `json:"messageId"`
 }
 
+type ClearedHistory struct {
+	ChatID    string `json:"chatId"`
+	ClearedAt uint64 `json:"clearedAt"`
+}
+
 type MessengerResponse struct {
 	Contacts                []*Contact
 	Installations           []*multidevice.Installation
@@ -38,6 +43,7 @@ type MessengerResponse struct {
 	pinMessages                 map[string]*common.PinMessage
 	currentStatus               *UserStatus
 	statusUpdates               map[string]UserStatus
+	clearedHistories            map[string]*ClearedHistory
 }
 
 func (r *MessengerResponse) MarshalJSON() ([]byte, error) {
@@ -54,6 +60,7 @@ func (r *MessengerResponse) MarshalJSON() ([]byte, error) {
 		CommunityChanges        []*communities.CommunityChanges `json:"communityChanges,omitempty"`
 		RequestsToJoinCommunity []*communities.RequestToJoin    `json:"requestsToJoinCommunity,omitempty"`
 		Mailservers             []mailservers.Mailserver        `json:"mailservers,omitempty"`
+		ClearedHistories        []*ClearedHistory               `json:"clearedHistories,omitempty"`
 		// Notifications a list of notifications derived from messenger events
 		// that are useful to notify the user about
 		Notifications               []*localnotifications.Notification `json:"notifications"`
@@ -78,6 +85,7 @@ func (r *MessengerResponse) MarshalJSON() ([]byte, error) {
 	responseItem.Communities = r.Communities()
 	responseItem.RemovedChats = r.RemovedChats()
 	responseItem.RemovedMessages = r.RemovedMessages()
+	responseItem.ClearedHistories = r.ClearedHistories()
 	responseItem.ActivityCenterNotifications = r.ActivityCenterNotifications()
 	responseItem.PinMessages = r.PinMessages()
 	responseItem.StatusUpdates = r.StatusUpdates()
@@ -109,6 +117,14 @@ func (r *MessengerResponse) RemovedMessages() []*RemovedMessage {
 	return messages
 }
 
+func (r *MessengerResponse) ClearedHistories() []*ClearedHistory {
+	var clearedHistories []*ClearedHistory
+	for chatID := range r.clearedHistories {
+		clearedHistories = append(clearedHistories, r.clearedHistories[chatID])
+	}
+	return clearedHistories
+}
+
 func (r *MessengerResponse) Communities() []*communities.Community {
 	var communities []*communities.Community
 	for _, c := range r.communities {
@@ -147,6 +163,7 @@ func (r *MessengerResponse) IsEmpty() bool {
 		len(r.messages)+
 		len(r.pinMessages)+
 		len(r.Contacts)+
+		len(r.clearedHistories)+
 		len(r.Installations)+
 		len(r.Invitations)+
 		len(r.EmojiReactions)+
@@ -172,6 +189,7 @@ func (r *MessengerResponse) Merge(response *MessengerResponse) error {
 		len(response.RequestsToJoinCommunity)+
 		len(response.Mailservers)+
 		len(response.EmojiReactions)+
+		len(response.clearedHistories)+
 		len(response.CommunityChanges) != 0 {
 		return ErrNotImplemented
 	}
@@ -267,6 +285,17 @@ func (r *MessengerResponse) AddRemovedMessage(rm *RemovedMessage) {
 	}
 }
 
+func (r *MessengerResponse) AddClearedHistory(ch *ClearedHistory) {
+	if r.clearedHistories == nil {
+		r.clearedHistories = make(map[string]*ClearedHistory)
+	}
+
+	existingClearedHistory, ok := r.clearedHistories[ch.ChatID]
+	if !ok || existingClearedHistory.ClearedAt < ch.ClearedAt {
+		r.clearedHistories[ch.ChatID] = ch
+	}
+}
+
 func (r *MessengerResponse) AddActivityCenterNotifications(ns []*ActivityCenterNotification) {
 	for _, n := range ns {
 		r.AddActivityCenterNotification(n)

protocol/messenger_sync_clear_history_test.go

@@ -0,0 +1,169 @@
+package protocol
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"errors"
+	"testing"
+
+	"github.com/status-im/status-go/protocol/common"
+	"github.com/status-im/status-go/protocol/requests"
+
+	gethbridge "github.com/status-im/status-go/eth-node/bridge/geth"
+	"github.com/status-im/status-go/eth-node/crypto"
+	"github.com/status-im/status-go/protocol/encryption/multidevice"
+	"github.com/status-im/status-go/protocol/tt"
+	"github.com/status-im/status-go/waku"
+
+	"github.com/stretchr/testify/suite"
+	"go.uber.org/zap"
+
+	"github.com/status-im/status-go/eth-node/types"
+)
+
+func TestMessengerSyncClearHistorySuite(t *testing.T) {
+	suite.Run(t, new(MessengerSyncClearHistory))
+}
+
+type MessengerSyncClearHistory struct {
+	suite.Suite
+	m          *Messenger        // main instance of Messenger
+	privateKey *ecdsa.PrivateKey // private key for the main instance of Messenger
+
+	// If one wants to send messages between different instances of Messenger,
+	// a single Waku service should be shared.
+	shh types.Waku
+
+	logger *zap.Logger
+}
+
+func (s *MessengerSyncClearHistory) SetupTest() {
+	s.logger = tt.MustCreateTestLogger()
+
+	config := waku.DefaultConfig
+	config.MinimumAcceptedPoW = 0
+	shh := waku.New(&config, s.logger)
+	s.shh = gethbridge.NewGethWakuWrapper(shh)
+	s.Require().NoError(shh.Start())
+
+	s.m = s.newMessenger(s.shh)
+	s.privateKey = s.m.identity
+	// We start the messenger in order to receive installations
+	_, err := s.m.Start()
+	s.Require().NoError(err)
+}
+
+func (s *MessengerSyncClearHistory) TearDownTest() {
+	s.Require().NoError(s.m.Shutdown())
+}
+
+func (s *MessengerSyncClearHistory) newMessenger(shh types.Waku) *Messenger {
+	privateKey, err := crypto.GenerateKey()
+	s.Require().NoError(err)
+
+	messenger, err := newMessengerWithKey(s.shh, privateKey, s.logger, nil)
+	s.Require().NoError(err)
+
+	return messenger
+}
+
+func (s *MessengerSyncClearHistory) pair() *Messenger {
+	theirMessenger, err := newMessengerWithKey(s.shh, s.privateKey, s.logger, nil)
+	s.Require().NoError(err)
+
+	err = theirMessenger.SetInstallationMetadata(theirMessenger.installationID, &multidevice.InstallationMetadata{
+		Name:       "their-name",
+		DeviceType: "their-device-type",
+	})
+	s.Require().NoError(err)
+	response, err := theirMessenger.SendPairInstallation(context.Background())
+	s.Require().NoError(err)
+	s.Require().NotNil(response)
+
+	// Wait for the message to reach its destination
+	response, err = WaitOnMessengerResponse(
+		s.m,
+		func(r *MessengerResponse) bool { return len(r.Installations) > 0 },
+		"installation not received",
+	)
+
+	s.Require().NoError(err)
+	actualInstallation := response.Installations[0]
+	s.Require().Equal(theirMessenger.installationID, actualInstallation.ID)
+	s.Require().NotNil(actualInstallation.InstallationMetadata)
+	s.Require().Equal("their-name", actualInstallation.InstallationMetadata.Name)
+	s.Require().Equal("their-device-type", actualInstallation.InstallationMetadata.DeviceType)
+
+	err = s.m.EnableInstallation(theirMessenger.installationID)
+	s.Require().NoError(err)
+
+	return theirMessenger
+}
+
+func (s *MessengerSyncClearHistory) TestSyncClearHistory() {
+	theirMessenger := s.pair()
+
+	response, err := s.m.CreatePublicChat(&requests.CreatePublicChat{
+		ID: publicChatName,
+	})
+	s.Require().NoError(err)
+	chat, ok := response.chats[publicChatName]
+	s.Require().True(ok)
+
+	_, err = theirMessenger.CreatePublicChat(&requests.CreatePublicChat{
+		ID: publicChatName,
+	})
+	s.Require().NoError(err)
+
+	message := buildTestMessage(*chat)
+	_, err = s.m.SendChatMessage(context.Background(), message)
+	s.Require().NoError(err)
+	var receivedPubChatMessage *common.Message
+	err = tt.RetryWithBackOff(func() error {
+		var err error
+		response, err := theirMessenger.RetrieveAll()
+		if err != nil {
+			return err
+		}
+
+		messages := response.Messages()
+		if len(messages) > 0 {
+			receivedPubChatMessage = messages[0]
+			return nil
+		}
+
+		return errors.New("Not received all messages")
+	})
+	s.Require().NoError(err)
+	s.Require().Equal(receivedPubChatMessage.ChatId, publicChatName)
+
+	var messages []*common.Message
+	messages, _, err = s.m.persistence.MessageByChatID(publicChatName, "", 10)
+	s.Require().NoError(err)
+	s.Require().True(len(messages) == 1)
+	messages, _, err = theirMessenger.persistence.MessageByChatID(publicChatName, "", 10)
+	s.Require().NoError(err)
+	s.Require().True(len(messages) == 1)
+
+	_, err = s.m.ClearHistory(&requests.ClearHistory{
+		ID: publicChatName,
+	})
+	s.Require().NoError(err)
+	err = tt.RetryWithBackOff(func() error {
+		response, err = theirMessenger.RetrieveAll()
+		if err != nil {
+			return err
+		}
+		if len(response.clearedHistories) > 0 {
+			return nil
+		}
+		return errors.New("Not received all clearedHistories")
+	})
+	s.Require().NoError(err)
+	messages, _, err = theirMessenger.persistence.MessageByChatID(publicChatName, "", 10)
+	s.Require().NoError(err)
+	s.Require().True(len(messages) == 0)
+
+	s.Require().NoError(theirMessenger.Shutdown())
+
+}

protocol/protobuf/application_metadata_message.pb.go

@@ -63,6 +63,7 @@ const (
 	ApplicationMetadataMessage_SYNC_ACTIVITY_CENTER_READ               ApplicationMetadataMessage_Type = 37
 	ApplicationMetadataMessage_SYNC_ACTIVITY_CENTER_ACCEPTED           ApplicationMetadataMessage_Type = 38
 	ApplicationMetadataMessage_SYNC_ACTIVITY_CENTER_DISMISSED          ApplicationMetadataMessage_Type = 39
+	ApplicationMetadataMessage_SYNC_CLEAR_HISTORY                      ApplicationMetadataMessage_Type = 41
 )
 
 var ApplicationMetadataMessage_Type_name = map[int32]string{
@@ -106,6 +107,7 @@ var ApplicationMetadataMessage_Type_name = map[int32]string{
 	37: "SYNC_ACTIVITY_CENTER_READ",
 	38: "SYNC_ACTIVITY_CENTER_ACCEPTED",
 	39: "SYNC_ACTIVITY_CENTER_DISMISSED",
+	41: "SYNC_CLEAR_HISTORY",
 }
 
 var ApplicationMetadataMessage_Type_value = map[string]int32{
@@ -149,6 +151,7 @@ var ApplicationMetadataMessage_Type_value = map[string]int32{
 	"SYNC_ACTIVITY_CENTER_READ":               37,
 	"SYNC_ACTIVITY_CENTER_ACCEPTED":           38,
 	"SYNC_ACTIVITY_CENTER_DISMISSED":          39,
+	"SYNC_CLEAR_HISTORY":                      41,
 }
 
 func (x ApplicationMetadataMessage_Type) String() string {
@@ -227,48 +230,49 @@ func init() {
 }
 
 var fileDescriptor_ad09a6406fcf24c7 = []byte{
-	// 675 bytes of a gzipped FileDescriptorProto
+	// 692 bytes of a gzipped FileDescriptorProto
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+	0x61, 0x05, 0x00, 0x00,
 }

protocol/protobuf/application_metadata_message.proto

@@ -53,5 +53,6 @@ message ApplicationMetadataMessage {
     SYNC_ACTIVITY_CENTER_READ = 37;
     SYNC_ACTIVITY_CENTER_ACCEPTED = 38;
     SYNC_ACTIVITY_CENTER_DISMISSED = 39;
+    SYNC_CLEAR_HISTORY = 41;
   }
 }

protocol/protobuf/pairing.pb.go

@@ -934,6 +934,53 @@ func (m *SyncActivityCenterDismissed) GetIds() [][]byte {
 	return nil
 }
 
+type SyncClearHistory struct {
+	ChatId               string   `protobuf:"bytes,1,opt,name=chat_id,json=chatId,proto3" json:"chat_id,omitempty"`
+	ClearedAt            uint64   `protobuf:"varint,2,opt,name=cleared_at,json=clearedAt,proto3" json:"cleared_at,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SyncClearHistory) Reset()         { *m = SyncClearHistory{} }
+func (m *SyncClearHistory) String() string { return proto.CompactTextString(m) }
+func (*SyncClearHistory) ProtoMessage()    {}
+func (*SyncClearHistory) Descriptor() ([]byte, []int) {
+	return fileDescriptor_d61ab7221f0b5518, []int{14}
+}
+
+func (m *SyncClearHistory) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SyncClearHistory.Unmarshal(m, b)
+}
+func (m *SyncClearHistory) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SyncClearHistory.Marshal(b, m, deterministic)
+}
+func (m *SyncClearHistory) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SyncClearHistory.Merge(m, src)
+}
+func (m *SyncClearHistory) XXX_Size() int {
+	return xxx_messageInfo_SyncClearHistory.Size(m)
+}
+func (m *SyncClearHistory) XXX_DiscardUnknown() {
+	xxx_messageInfo_SyncClearHistory.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SyncClearHistory proto.InternalMessageInfo
+
+func (m *SyncClearHistory) GetChatId() string {
+	if m != nil {
+		return m.ChatId
+	}
+	return ""
+}
+
+func (m *SyncClearHistory) GetClearedAt() uint64 {
+	if m != nil {
+		return m.ClearedAt
+	}
+	return 0
+}
+
 func init() {
 	proto.RegisterType((*Backup)(nil), "protobuf.Backup")
 	proto.RegisterType((*PairInstallation)(nil), "protobuf.PairInstallation")
@@ -949,6 +996,7 @@ func init() {
 	proto.RegisterType((*SyncActivityCenterRead)(nil), "protobuf.SyncActivityCenterRead")
 	proto.RegisterType((*SyncActivityCenterAccepted)(nil), "protobuf.SyncActivityCenterAccepted")
 	proto.RegisterType((*SyncActivityCenterDismissed)(nil), "protobuf.SyncActivityCenterDismissed")
+	proto.RegisterType((*SyncClearHistory)(nil), "protobuf.SyncClearHistory")
 }
 
 func init() {
@@ -956,56 +1004,59 @@ func init() {
 }
 
 var fileDescriptor_d61ab7221f0b5518 = []byte{
-	// 814 bytes of a gzipped FileDescriptorProto
+	// 850 bytes of a gzipped FileDescriptorProto
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+	0x00, 0x00,
 }

protocol/protobuf/pairing.proto

@@ -104,4 +104,9 @@ message SyncActivityCenterAccepted {
 message SyncActivityCenterDismissed {
   uint64 clock = 1;
   repeated bytes ids = 2;
+}
+
+message SyncClearHistory {
+  string chat_id = 1;
+  uint64 cleared_at = 2;
 }

protocol/v1/status_message.go

@@ -263,6 +263,8 @@ func (m *StatusMessage) HandleApplication() error {
 		return m.unmarshalProtobufData(new(protobuf.SyncActivityCenterAccepted))
 	case protobuf.ApplicationMetadataMessage_SYNC_ACTIVITY_CENTER_DISMISSED:
 		return m.unmarshalProtobufData(new(protobuf.SyncActivityCenterDismissed))
+	case protobuf.ApplicationMetadataMessage_SYNC_CLEAR_HISTORY:
+		return m.unmarshalProtobufData(new(protobuf.SyncClearHistory))
 	}
 	return nil
 }