Refactored BasePayloadReceiver to handle Receive()

Additionally to allow this process flow I refactored RawMessagePayloadReceiver and InstallationPayloadHandler to use a dedicated Marshaller type. Also added a fix to struct extention functionality, we want to ignore the process if there is no public key because that will key encoding. Seems an unnecessary bug to have to handle when you know there is no key.

VERSION

@@ -1 +1 @@
-0.142.5
+0.142.6

account/json/utils.go

@@ -28,6 +28,11 @@ func getPubKeyData(publicKey string) (*PublicKeyData, error) {
 }
 
 func ExtendStructWithPubKeyData(publicKey string, item any) (any, error) {
+	// If the public key is empty, do not attempt to extend the incoming item
+	if publicKey == "" {
+		return item, nil
+	}
+
 	pkd, err := getPubKeyData(publicKey)
 	if err != nil {
 		return nil, err

multiaccounts/settings/structs.go

@@ -2,6 +2,7 @@ package settings
 
 import (
 	"encoding/json"
+	"reflect"
 
 	accountJson "github.com/status-im/status-go/account/json"
 	"github.com/status-im/status-go/eth-node/types"
@@ -200,3 +201,8 @@ func (s Settings) MarshalJSON() ([]byte, error) {
 	}
 	return json.Marshal(ext)
 }
+
+func (s Settings) IsEmpty() bool {
+	empty := reflect.Zero(reflect.TypeOf(s)).Interface()
+	return reflect.DeepEqual(s, empty)
+}

server/pairing/client.go

@@ -111,7 +111,7 @@ type SenderClient struct {
 	*BaseClient
 	accountMounter      PayloadMounter
 	rawMessageMounter   PayloadMounter
-	installationMounter *InstallationPayloadMounterReceiver
+	installationMounter PayloadMounterReceiver
 }
 
 // NewSenderClient returns a fully qualified SenderClient created with the incoming parameters
@@ -284,8 +284,8 @@ type ReceiverClient struct {
 	*BaseClient
 
 	accountReceiver      PayloadReceiver
-	rawMessageReceiver   *RawMessagePayloadReceiver
+	rawMessageReceiver   PayloadReceiver
-	installationReceiver *InstallationPayloadMounterReceiver
+	installationReceiver PayloadMounterReceiver
 }
 
 // NewReceiverClient returns a fully qualified ReceiverClient created with the incoming parameters

server/pairing/interfaces.go

@@ -25,6 +25,10 @@ type PayloadLocker interface {
 	LockPayload()
 }
 
+// TODO if this interface only gets a logger, then maybe remove the interface and change consuming function params
+//  to accept a *zap.logger
+//  https://github.com/status-im/status-go/issues/3370
+
 type HandlerServer interface {
 	GetLogger() *zap.Logger
 }

server/pairing/payload_encryptor.go

@@ -17,9 +17,6 @@ func (ep *EncryptionPayload) lock() {
 	ep.locked = true
 }
 
-// TODO resolve the many cases of other structs simply wrapping their encryptor rather than embedding the functionality
-//  https://github.com/status-im/status-go/issues/3302
-
 // PayloadEncryptor is responsible for encrypting and decrypting payload data
 type PayloadEncryptor struct {
 	aesKey  []byte
@@ -93,6 +90,7 @@ func (pem *PayloadEncryptor) lockPayload() {
 	pem.payload.lock()
 }
 
+// PayloadLockPayload Embeds a *PayloadEncryptor to give all embedding structs EncryptionPayload Locking
 type PayloadLockPayload struct {
 	*PayloadEncryptor
 }
@@ -101,6 +99,8 @@ func (pl *PayloadLockPayload) LockPayload() {
 	pl.lockPayload()
 }
 
+// PayloadToSend Embeds a *PayloadEncryptor to give all embedding structs EncryptionPayload ToSend() functionality
+// Useful to securely implement the PayloadMounter interface
 type PayloadToSend struct {
 	*PayloadEncryptor
 }
@@ -109,6 +109,8 @@ func (pts *PayloadToSend) ToSend() []byte {
 	return pts.getEncrypted()
 }
 
+// PayloadReceived Embeds a *PayloadEncryptor to give all embedding structs EncryptionPayload Received() functionality
+// Useful to securely implement the PayloadReceiver interface
 type PayloadReceived struct {
 	*PayloadEncryptor
 }

server/pairing/payload_management.go

@@ -1,6 +1,7 @@
 package pairing
 
 import (
+	"encoding/json"
 	"errors"
 
 	"github.com/golang/protobuf/proto"
@@ -8,15 +9,14 @@ import (
 
 	"github.com/status-im/status-go/api"
 	"github.com/status-im/status-go/multiaccounts"
+	"github.com/status-im/status-go/multiaccounts/accounts"
+	"github.com/status-im/status-go/multiaccounts/settings"
 	"github.com/status-im/status-go/protocol/protobuf"
 )
 
 const keystoreDir = "keystore"
 
 var (
-	// TODO add validation on config to ensure required fields have valid values
-	//  https://github.com/status-im/status-go/issues/3303
-
 	ErrKeyFileAlreadyExists    = errors.New("key file already exists")
 	ErrKeyUIDEmptyAsSender     = errors.New("keyUID must be provided as sender")
 	ErrNodeConfigNilAsReceiver = errors.New("node config must be provided as receiver")
@@ -103,36 +103,86 @@ func (ppm *AccountPayloadMarshaller) multiaccountFromProtobuf(pbMultiAccount *pr
 	ppm.multiaccount.FromProtobuf(pbMultiAccount)
 }
 
-// RawMessagePayloadMarshaller is responsible for marshalling and unmarshalling raw message data
+type RawMessagesPayload struct {
-type RawMessagePayloadMarshaller struct {
+	rawMessages []*protobuf.RawMessage
-	payload *protobuf.SyncRawMessage
+	subAccounts []*accounts.Account
+	setting     *settings.Settings
 }
 
-func NewRawMessagePayloadMarshaller(payload *protobuf.SyncRawMessage) *RawMessagePayloadMarshaller {
+func NewRawMessagesPayload() *RawMessagesPayload {
+	return &RawMessagesPayload{
+		setting: new(settings.Settings),
+	}
+}
+
+// RawMessagePayloadMarshaller is responsible for marshalling and unmarshalling raw message data
+type RawMessagePayloadMarshaller struct {
+	payload *RawMessagesPayload
+}
+
+func NewRawMessagePayloadMarshaller(payload *RawMessagesPayload) *RawMessagePayloadMarshaller {
 	return &RawMessagePayloadMarshaller{
 		payload: payload,
 	}
 }
 
-func (rmm *RawMessagePayloadMarshaller) MarshalProtobuf() ([]byte, error) {
+func (rmm *RawMessagePayloadMarshaller) MarshalProtobuf() (data []byte, err error) {
-	return proto.Marshal(rmm.payload)
+	syncRawMessage := new(protobuf.SyncRawMessage)
+
+	syncRawMessage.RawMessages = rmm.payload.rawMessages
+	if len(rmm.payload.subAccounts) > 0 {
+		syncRawMessage.SubAccountsJsonBytes, err = json.Marshal(rmm.payload.subAccounts)
+		if err != nil {
+			return nil, err
+		}
+	}
+	if !rmm.payload.setting.IsEmpty() {
+		syncRawMessage.SettingsJsonBytes, err = json.Marshal(rmm.payload.setting)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return proto.Marshal(syncRawMessage)
+}
+
+func (rmm *RawMessagePayloadMarshaller) UnmarshalProtobuf(data []byte) error {
+	syncRawMessage := new(protobuf.SyncRawMessage)
+	err := proto.Unmarshal(data, syncRawMessage)
+	if err != nil {
+		return err
+	}
+	if syncRawMessage.SubAccountsJsonBytes != nil {
+		err = json.Unmarshal(syncRawMessage.SubAccountsJsonBytes, &rmm.payload.subAccounts)
+		if err != nil {
+			return err
+		}
+	}
+	if syncRawMessage.SettingsJsonBytes != nil {
+		err = json.Unmarshal(syncRawMessage.SettingsJsonBytes, rmm.payload.setting)
+		if err != nil {
+			return err
+		}
+	}
+
+	rmm.payload.rawMessages = syncRawMessage.RawMessages
+	return nil
 }
 
 // InstallationPayloadMounterReceiver represents an InstallationPayload Repository
 type InstallationPayloadMounterReceiver struct {
 	PayloadMounter
-	*InstallationPayloadReceiver
+	PayloadReceiver
 }
 
-func NewInstallationPayloadMounterReceiver(logger *zap.Logger, encryptor *PayloadEncryptor, backend *api.GethStatusBackend, deviceType string) *InstallationPayloadMounterReceiver {
+func NewInstallationPayloadMounterReceiver(encryptor *PayloadEncryptor, backend *api.GethStatusBackend, deviceType string) *InstallationPayloadMounterReceiver {
-	l := logger.Named("InstallationPayloadMounterReceiver")
 	return &InstallationPayloadMounterReceiver{
-		NewInstallationPayloadMounter(l, encryptor, backend, deviceType),
+		NewInstallationPayloadMounter(encryptor, backend, deviceType),
-		NewInstallationPayloadReceiver(l, encryptor, backend, deviceType),
+		NewInstallationPayloadReceiver(encryptor, backend, deviceType),
 	}
 }
 
 func (i *InstallationPayloadMounterReceiver) LockPayload() {
 	i.PayloadMounter.LockPayload()
-	i.InstallationPayloadReceiver.LockPayload()
+	i.PayloadReceiver.LockPayload()
 }

server/pairing/payload_mounter.go

@@ -5,7 +5,6 @@ import (
 
 	"github.com/status-im/status-go/api"
 	"github.com/status-im/status-go/multiaccounts"
-	"github.com/status-im/status-go/protocol/protobuf"
 )
 
 type PayloadMounter interface {
@@ -26,8 +25,8 @@ type BasePayloadMounter struct {
 	*PayloadLockPayload
 	*PayloadToSend
 
-	payloadLoader     PayloadLoader
+	loader     PayloadLoader
-	payloadMarshaller ProtobufMarshaller
+	marshaller ProtobufMarshaller
 	encryptor  *PayloadEncryptor
 }
 
@@ -35,20 +34,20 @@ func NewBasePayloadMounter(loader PayloadLoader, marshaller ProtobufMarshaller,
 	return &BasePayloadMounter{
 		PayloadLockPayload: &PayloadLockPayload{e},
 		PayloadToSend:      &PayloadToSend{e},
-		payloadLoader:      loader,
+		loader:             loader,
-		payloadMarshaller:  marshaller,
+		marshaller:         marshaller,
 		encryptor:          e,
 	}
 }
 
 // Mount loads and prepares the payload to be stored in the PayloadLoader's state ready for later access
 func (bpm *BasePayloadMounter) Mount() error {
-	err := bpm.payloadLoader.Load()
+	err := bpm.loader.Load()
 	if err != nil {
 		return err
 	}
 
-	p, err := bpm.payloadMarshaller.MarshalProtobuf()
+	p, err := bpm.marshaller.MarshalProtobuf()
 	if err != nil {
 		return err
 	}
@@ -65,7 +64,7 @@ func (bpm *BasePayloadMounter) Mount() error {
 |
 */
 
-// NewAccountPayloadMounter generates a new and initialised AccountPayloadMounter
+// NewAccountPayloadMounter generates a new and initialised AccountPayload flavoured BasePayloadMounter
 // responsible for the whole lifecycle of an AccountPayload
 func NewAccountPayloadMounter(pe *PayloadEncryptor, config *SenderConfig, logger *zap.Logger) (*BasePayloadMounter, error) {
 	l := logger.Named("AccountPayloadLoader")
@@ -141,11 +140,11 @@ func (apl *AccountPayloadLoader) Load() error {
 |
 */
 
-// NewRawMessagePayloadMounter generates a new and initialised RawMessagePayloadMounter
+// NewRawMessagePayloadMounter generates a new and initialised RawMessagePayload flavoured BasePayloadMounter
 // responsible for the whole lifecycle of an RawMessagePayload
 func NewRawMessagePayloadMounter(logger *zap.Logger, pe *PayloadEncryptor, backend *api.GethStatusBackend, config *SenderConfig) *BasePayloadMounter {
 	pe = pe.Renew()
-	payload := new(protobuf.SyncRawMessage)
+	payload := NewRawMessagesPayload()
 
 	return NewBasePayloadMounter(
 		NewRawMessageLoader(backend, payload, config),
@@ -155,13 +154,13 @@ func NewRawMessagePayloadMounter(logger *zap.Logger, pe *PayloadEncryptor, backe
 }
 
 type RawMessageLoader struct {
-	payload               *protobuf.SyncRawMessage
+	payload               *RawMessagesPayload
 	syncRawMessageHandler *SyncRawMessageHandler
 	keyUID                string
 	deviceType            string
 }
 
-func NewRawMessageLoader(backend *api.GethStatusBackend, payload *protobuf.SyncRawMessage, config *SenderConfig) *RawMessageLoader {
+func NewRawMessageLoader(backend *api.GethStatusBackend, payload *RawMessagesPayload, config *SenderConfig) *RawMessageLoader {
 	return &RawMessageLoader{
 		syncRawMessageHandler: NewSyncRawMessageHandler(backend),
 		payload:               payload,
@@ -171,7 +170,7 @@ func NewRawMessageLoader(backend *api.GethStatusBackend, payload *protobuf.SyncR
 }
 
 func (r *RawMessageLoader) Load() (err error) {
-	*r.payload, err = r.syncRawMessageHandler.PrepareRawMessage(r.keyUID, r.deviceType)
+	r.payload.rawMessages, r.payload.subAccounts, r.payload.setting, err = r.syncRawMessageHandler.PrepareRawMessage(r.keyUID, r.deviceType)
 	return err
 }
 
@@ -184,11 +183,11 @@ func (r *RawMessageLoader) Load() (err error) {
 |
 */
 
-// NewInstallationPayloadMounter generates a new and initialised InstallationPayloadMounter
+// NewInstallationPayloadMounter generates a new and initialised InstallationPayload flavoured BasePayloadMounter
 // responsible for the whole lifecycle of an InstallationPayload
-func NewInstallationPayloadMounter(logger *zap.Logger, pe *PayloadEncryptor, backend *api.GethStatusBackend, deviceType string) *BasePayloadMounter {
+func NewInstallationPayloadMounter(pe *PayloadEncryptor, backend *api.GethStatusBackend, deviceType string) *BasePayloadMounter {
 	pe = pe.Renew()
-	payload := new(protobuf.SyncRawMessage)
+	payload := NewRawMessagesPayload()
 
 	return NewBasePayloadMounter(
 		NewInstallationPayloadLoader(backend, payload, deviceType),
@@ -198,12 +197,12 @@ func NewInstallationPayloadMounter(logger *zap.Logger, pe *PayloadEncryptor, bac
 }
 
 type InstallationPayloadLoader struct {
-	payload               *protobuf.SyncRawMessage
+	payload               *RawMessagesPayload
 	syncRawMessageHandler *SyncRawMessageHandler
 	deviceType            string
 }
 
-func NewInstallationPayloadLoader(backend *api.GethStatusBackend, payload *protobuf.SyncRawMessage, deviceType string) *InstallationPayloadLoader {
+func NewInstallationPayloadLoader(backend *api.GethStatusBackend, payload *RawMessagesPayload, deviceType string) *InstallationPayloadLoader {
 	return &InstallationPayloadLoader{
 		payload:               payload,
 		syncRawMessageHandler: NewSyncRawMessageHandler(backend),
@@ -217,7 +216,8 @@ func (r *InstallationPayloadLoader) Load() error {
 	if err != nil {
 		return err
 	}
-	*r.payload = rawMessageCollector.convertToSyncRawMessage()
+	rms := rawMessageCollector.convertToSyncRawMessage()
+	r.payload.rawMessages = rms.RawMessages
 	return nil
 }
 
@@ -232,12 +232,12 @@ func (r *InstallationPayloadLoader) Load() error {
 
 // NewPayloadMounters returns PayloadMounter s configured to handle local pairing transfers of:
 //   - AccountPayload, RawMessagePayload and InstallationPayload
-func NewPayloadMounters(logger *zap.Logger, pe *PayloadEncryptor, backend *api.GethStatusBackend, config *SenderConfig) (PayloadMounter, PayloadMounter, *InstallationPayloadMounterReceiver, error) {
+func NewPayloadMounters(logger *zap.Logger, pe *PayloadEncryptor, backend *api.GethStatusBackend, config *SenderConfig) (PayloadMounter, PayloadMounter, PayloadMounterReceiver, error) {
 	am, err := NewAccountPayloadMounter(pe, config, logger)
 	if err != nil {
 		return nil, nil, nil, err
 	}
 	rmm := NewRawMessagePayloadMounter(logger, pe, backend, config)
-	imr := NewInstallationPayloadMounterReceiver(logger, pe, backend, config.DeviceType)
+	imr := NewInstallationPayloadMounterReceiver(pe, backend, config.DeviceType)
 	return am, rmm, imr, nil
 }

server/pairing/payload_receiver.go

@@ -32,15 +32,44 @@ type PayloadStorer interface {
 type BasePayloadReceiver struct {
 	*PayloadLockPayload
 	*PayloadReceived
+
+	encryptor    *PayloadEncryptor
+	unmarshaller ProtobufUnmarshaller
+	storer       PayloadStorer
+
+	receiveCallback func()
 }
 
-func NewBaseBasePayloadReceiver(e *PayloadEncryptor) *BasePayloadReceiver {
+func NewBaseBasePayloadReceiver(e *PayloadEncryptor, um ProtobufUnmarshaller, s PayloadStorer, callback func()) *BasePayloadReceiver {
 	return &BasePayloadReceiver{
-		&PayloadLockPayload{e},
+		PayloadLockPayload: &PayloadLockPayload{e},
-		&PayloadReceived{e},
+		PayloadReceived:    &PayloadReceived{e},
+		encryptor:          e,
+		unmarshaller:       um,
+		storer:             s,
+		receiveCallback:    callback,
 	}
 }
 
+// Receive takes a []byte representing raw data, parses and stores the data
+func (bpr *BasePayloadReceiver) Receive(data []byte) error {
+	err := bpr.encryptor.decrypt(data)
+	if err != nil {
+		return err
+	}
+
+	err = bpr.unmarshaller.UnmarshalProtobuf(bpr.Received())
+	if err != nil {
+		return err
+	}
+
+	if bpr.receiveCallback != nil {
+		bpr.receiveCallback()
+	}
+
+	return bpr.storer.Store()
+}
+
 /*
 |--------------------------------------------------------------------------
 | AccountPayload
@@ -50,56 +79,24 @@ func NewBaseBasePayloadReceiver(e *PayloadEncryptor) *BasePayloadReceiver {
 |
 */
 
-// AccountPayloadReceiver is responsible for the whole lifecycle of a AccountPayload
+// NewAccountPayloadReceiver generates a new and initialised AccountPayload flavoured BasePayloadReceiver
-type AccountPayloadReceiver struct {
+// AccountPayloadReceiver is responsible for the whole receive and store cycle of an AccountPayload
-	*BasePayloadReceiver
+func NewAccountPayloadReceiver(e *PayloadEncryptor, p *AccountPayload, config *ReceiverConfig, logger *zap.Logger) (*BasePayloadReceiver, error) {
-
-	logger                   *zap.Logger
-	accountPayload           *AccountPayload
-	encryptor                *PayloadEncryptor
-	accountPayloadMarshaller *AccountPayloadMarshaller
-	accountStorer            *AccountPayloadStorer
-}
-
-// NewAccountPayloadReceiver generates a new and initialised AccountPayloadManager
-func NewAccountPayloadReceiver(e *PayloadEncryptor, config *ReceiverConfig, logger *zap.Logger) (*AccountPayloadReceiver, error) {
 	l := logger.Named("AccountPayloadManager")
 	l.Debug("fired", zap.Any("config", config))
 
 	e = e.Renew()
 
-	// A new SHARED AccountPayload
+	aps, err := NewAccountPayloadStorer(p, config)
-	p := new(AccountPayload)
-	accountPayloadRepository, err := NewAccountPayloadStorer(p, config)
 	if err != nil {
 		return nil, err
 	}
 
-	return &AccountPayloadReceiver{
+	return NewBaseBasePayloadReceiver(e, NewPairingPayloadMarshaller(p, l), aps,
-		BasePayloadReceiver:      NewBaseBasePayloadReceiver(e),
+		func() {
-		logger:                   l,
+			signal.SendLocalPairingEvent(Event{Type: EventReceivedAccount, Action: ActionPairingAccount, Data: p.multiaccount})
-		accountPayload:           p,
+		},
-		encryptor:                e,
+	), nil
-		accountPayloadMarshaller: NewPairingPayloadMarshaller(p, l),
-		accountStorer:            accountPayloadRepository,
-	}, nil
-}
-
-// Receive takes a []byte representing raw data, parses and stores the data
-func (apr *AccountPayloadReceiver) Receive(data []byte) error {
-	err := apr.encryptor.decrypt(data)
-	if err != nil {
-		return err
-	}
-
-	err = apr.accountPayloadMarshaller.UnmarshalProtobuf(apr.Received())
-	if err != nil {
-		return err
-	}
-
-	signal.SendLocalPairingEvent(Event{Type: EventReceivedAccount, Action: ActionPairingAccount, Data: apr.accountPayload.multiaccount})
-
-	return apr.accountStorer.Store()
 }
 
 // AccountPayloadStorer is responsible for parsing, validating and storing AccountPayload data
@@ -217,38 +214,19 @@ func (aps *AccountPayloadStorer) storeMultiAccount() error {
 |
 */
 
-type RawMessagePayloadReceiver struct {
+// NewRawMessagePayloadReceiver generates a new and initialised RawMessagesPayload flavoured BasePayloadReceiver
-	*BasePayloadReceiver
+// RawMessagePayloadReceiver is responsible for the whole receive and store cycle of a RawMessagesPayload
-
+func NewRawMessagePayloadReceiver(accountPayload *AccountPayload, e *PayloadEncryptor, backend *api.GethStatusBackend, config *ReceiverConfig) *BasePayloadReceiver {
-	logger    *zap.Logger
-	encryptor *PayloadEncryptor
-	storer    *RawMessageStorer
-}
-
-func NewRawMessagePayloadReceiver(logger *zap.Logger, accountPayload *AccountPayload, e *PayloadEncryptor, backend *api.GethStatusBackend, config *ReceiverConfig) *RawMessagePayloadReceiver {
-	l := logger.Named("RawMessagePayloadManager")
-
 	e = e.Renew()
+	payload := NewRawMessagesPayload()
 
-	return &RawMessagePayloadReceiver{
+	return NewBaseBasePayloadReceiver(e,
-		BasePayloadReceiver: NewBaseBasePayloadReceiver(e),
+		NewRawMessagePayloadMarshaller(payload),
-		logger:              l,
+		NewRawMessageStorer(backend, payload, accountPayload, config), nil)
-		encryptor:           e,
-		storer:              NewRawMessageStorer(backend, accountPayload, config),
-	}
-}
-
-func (r *RawMessagePayloadReceiver) Receive(data []byte) error {
-	err := r.encryptor.decrypt(data)
-	if err != nil {
-		return err
-	}
-	r.storer.payload = r.Received()
-	return r.storer.Store()
 }
 
 type RawMessageStorer struct {
-	payload               []byte
+	payload               *RawMessagesPayload
 	syncRawMessageHandler *SyncRawMessageHandler
 	accountPayload        *AccountPayload
 	nodeConfig            *params.NodeConfig
@@ -256,10 +234,10 @@ type RawMessageStorer struct {
 	deviceType            string
 }
 
-func NewRawMessageStorer(backend *api.GethStatusBackend, accountPayload *AccountPayload, config *ReceiverConfig) *RawMessageStorer {
+func NewRawMessageStorer(backend *api.GethStatusBackend, payload *RawMessagesPayload, accountPayload *AccountPayload, config *ReceiverConfig) *RawMessageStorer {
 	return &RawMessageStorer{
 		syncRawMessageHandler: NewSyncRawMessageHandler(backend),
-		payload:               make([]byte, 0),
+		payload:               payload,
 		accountPayload:        accountPayload,
 		nodeConfig:            config.NodeConfig,
 		settingCurrentNetwork: config.SettingCurrentNetwork,
@@ -268,11 +246,10 @@ func NewRawMessageStorer(backend *api.GethStatusBackend, accountPayload *Account
 }
 
 func (r *RawMessageStorer) Store() error {
-	accountPayload := r.accountPayload
+	if r.accountPayload == nil || r.accountPayload.multiaccount == nil {
-	if accountPayload == nil || accountPayload.multiaccount == nil {
 		return fmt.Errorf("no known multiaccount when storing raw messages")
 	}
-	return r.syncRawMessageHandler.HandleRawMessage(accountPayload, r.nodeConfig, r.settingCurrentNetwork, r.deviceType, r.payload)
+	return r.syncRawMessageHandler.HandleRawMessage(r.accountPayload, r.nodeConfig, r.settingCurrentNetwork, r.deviceType, r.payload)
 }
 
 /*
@@ -284,45 +261,28 @@ func (r *RawMessageStorer) Store() error {
 |
 */
 
-type InstallationPayloadReceiver struct {
+// NewInstallationPayloadReceiver generates a new and initialised InstallationPayload flavoured BasePayloadReceiver
-	*BasePayloadReceiver
+// InstallationPayloadReceiver is responsible for the whole receive and store cycle of a RawMessagesPayload specifically
-
+// for sending / requesting installation data from the Receiver device.
-	logger    *zap.Logger
+func NewInstallationPayloadReceiver(e *PayloadEncryptor, backend *api.GethStatusBackend, deviceType string) *BasePayloadReceiver {
-	encryptor *PayloadEncryptor
-	storer    *InstallationPayloadStorer
-}
-
-func NewInstallationPayloadReceiver(logger *zap.Logger, e *PayloadEncryptor, backend *api.GethStatusBackend, deviceType string) *InstallationPayloadReceiver {
-	l := logger.Named("InstallationPayloadManager")
-
 	e = e.Renew()
+	payload := NewRawMessagesPayload()
 
-	return &InstallationPayloadReceiver{
+	return NewBaseBasePayloadReceiver(e,
-		BasePayloadReceiver: NewBaseBasePayloadReceiver(e),
+		NewRawMessagePayloadMarshaller(payload),
-		logger:              l,
+		NewInstallationPayloadStorer(backend, payload, deviceType), nil)
-		encryptor:           e,
-		storer:              NewInstallationPayloadStorer(backend, deviceType),
-	}
-}
-
-func (i *InstallationPayloadReceiver) Receive(data []byte) error {
-	err := i.encryptor.decrypt(data)
-	if err != nil {
-		return err
-	}
-	i.storer.payload = i.encryptor.getDecrypted()
-	return i.storer.Store()
 }
 
 type InstallationPayloadStorer struct {
-	payload               []byte
+	payload               *RawMessagesPayload
 	syncRawMessageHandler *SyncRawMessageHandler
 	deviceType            string
 	backend               *api.GethStatusBackend
 }
 
-func NewInstallationPayloadStorer(backend *api.GethStatusBackend, deviceType string) *InstallationPayloadStorer {
+func NewInstallationPayloadStorer(backend *api.GethStatusBackend, payload *RawMessagesPayload, deviceType string) *InstallationPayloadStorer {
 	return &InstallationPayloadStorer{
+		payload:               payload,
 		syncRawMessageHandler: NewSyncRawMessageHandler(backend),
 		deviceType:            deviceType,
 		backend:               backend,
@@ -334,15 +294,11 @@ func (r *InstallationPayloadStorer) Store() error {
 	if messenger == nil {
 		return fmt.Errorf("messenger is nil when invoke InstallationPayloadRepository#Store()")
 	}
-	rawMessages, _, _, err := r.syncRawMessageHandler.unmarshalSyncRawMessage(r.payload)
+	err := messenger.SetInstallationDeviceType(r.deviceType)
 	if err != nil {
 		return err
 	}
-	err = messenger.SetInstallationDeviceType(r.deviceType)
+	return messenger.HandleSyncRawMessages(r.payload.rawMessages)
-	if err != nil {
-		return err
-	}
-	return messenger.HandleSyncRawMessages(rawMessages)
 }
 
 /*
@@ -354,12 +310,15 @@ func (r *InstallationPayloadStorer) Store() error {
 |
 */
 
-func NewPayloadReceivers(logger *zap.Logger, pe *PayloadEncryptor, backend *api.GethStatusBackend, config *ReceiverConfig) (*AccountPayloadReceiver, *RawMessagePayloadReceiver, *InstallationPayloadMounterReceiver, error) {
+func NewPayloadReceivers(logger *zap.Logger, pe *PayloadEncryptor, backend *api.GethStatusBackend, config *ReceiverConfig) (PayloadReceiver, PayloadReceiver, PayloadMounterReceiver, error) {
-	ar, err := NewAccountPayloadReceiver(pe, config, logger)
+	// A new SHARED AccountPayload
+	p := new(AccountPayload)
+
+	ar, err := NewAccountPayloadReceiver(pe, p, config, logger)
 	if err != nil {
 		return nil, nil, nil, err
 	}
-	rmr := NewRawMessagePayloadReceiver(logger, ar.accountPayload, pe, backend, config)
+	rmr := NewRawMessagePayloadReceiver(p, pe, backend, config)
-	imr := NewInstallationPayloadMounterReceiver(logger, pe, backend, config.DeviceType)
+	imr := NewInstallationPayloadMounterReceiver(pe, backend, config.DeviceType)
 	return ar, rmr, imr, nil
 }

server/pairing/raw_message_collector.go

@@ -21,7 +21,7 @@ func (r *RawMessageCollector) getRawMessages() []*common.RawMessage {
 	return r.rawMessages
 }
 
-func (r *RawMessageCollector) convertToSyncRawMessage() protobuf.SyncRawMessage {
+func (r *RawMessageCollector) convertToSyncRawMessage() *protobuf.SyncRawMessage {
 	syncRawMessage := new(protobuf.SyncRawMessage)
 	for _, m := range r.getRawMessages() {
 		rawMessage := new(protobuf.RawMessage)
@@ -29,5 +29,5 @@ func (r *RawMessageCollector) convertToSyncRawMessage() protobuf.SyncRawMessage
 		rawMessage.MessageType = m.MessageType
 		syncRawMessage.RawMessages = append(syncRawMessage.RawMessages, rawMessage)
 	}
-	return *syncRawMessage
+	return syncRawMessage
 }

server/pairing/raw_message_handler.go

@@ -2,12 +2,9 @@ package pairing
 
 import (
 	"context"
-	"encoding/json"
 	"fmt"
 	"path/filepath"
 
-	"github.com/golang/protobuf/proto"
-
 	"github.com/status-im/status-go/api"
 	"github.com/status-im/status-go/multiaccounts/accounts"
 	"github.com/status-im/status-go/multiaccounts/settings"
@@ -38,10 +35,11 @@ func (s *SyncRawMessageHandler) CollectInstallationData(rawMessageCollector *Raw
 	return err
 }
 
-func (s *SyncRawMessageHandler) PrepareRawMessage(keyUID, deviceType string) (rsm protobuf.SyncRawMessage, err error) {
+func (s *SyncRawMessageHandler) PrepareRawMessage(keyUID, deviceType string) (rm []*protobuf.RawMessage, as []*accounts.Account, syncSettings *settings.Settings, err error) {
+	syncSettings = new(settings.Settings)
 	messenger := s.backend.Messenger()
 	if messenger == nil {
-		return rsm, fmt.Errorf("messenger is nil when PrepareRawMessage")
+		return nil, nil, nil, fmt.Errorf("messenger is nil when PrepareRawMessage")
 	}
 
 	currentAccount, err := s.backend.GetActiveAccount()
@@ -49,7 +47,7 @@ func (s *SyncRawMessageHandler) PrepareRawMessage(keyUID, deviceType string) (rs
 		return
 	}
 	if keyUID != currentAccount.KeyUID {
-		return rsm, fmt.Errorf("keyUID not equal")
+		return nil, nil, nil, fmt.Errorf("keyUID not equal")
 	}
 
 	messenger.SetLocalPairing(true)
@@ -67,26 +65,16 @@ func (s *SyncRawMessageHandler) PrepareRawMessage(keyUID, deviceType string) (rs
 		return
 	}
 
-	rsm = rawMessageCollector.convertToSyncRawMessage()
+	rsm := rawMessageCollector.convertToSyncRawMessage()
+	rm = rsm.RawMessages
 
 	accountService := s.backend.StatusNode().AccountService()
-	var (
+
-		subAccounts []*accounts.Account
+	as, err = accountService.GetAccountsByKeyUID(keyUID)
-		setting     settings.Settings
-	)
-	subAccounts, err = accountService.GetAccountsByKeyUID(keyUID)
 	if err != nil {
 		return
 	}
-	rsm.SubAccountsJsonBytes, err = json.Marshal(subAccounts)
+	*syncSettings, err = accountService.GetSettings()
-	if err != nil {
-		return
-	}
-	setting, err = accountService.GetSettings()
-	if err != nil {
-		return
-	}
-	rsm.SettingsJsonBytes, err = json.Marshal(setting)
 	if err != nil {
 		return
 	}
@@ -94,12 +82,8 @@ func (s *SyncRawMessageHandler) PrepareRawMessage(keyUID, deviceType string) (rs
 	return
 }
 
-func (s *SyncRawMessageHandler) HandleRawMessage(accountPayload *AccountPayload, nodeConfig *params.NodeConfig, settingCurrentNetwork, deviceType string, rawMessagePayload []byte) error {
+func (s *SyncRawMessageHandler) HandleRawMessage(accountPayload *AccountPayload, nodeConfig *params.NodeConfig, settingCurrentNetwork, deviceType string, rmp *RawMessagesPayload) (err error) {
 	account := accountPayload.multiaccount
-	rawMessages, subAccounts, setting, err := s.unmarshalSyncRawMessage(rawMessagePayload)
-	if err != nil {
-		return err
-	}
 
 	activeAccount, _ := s.backend.GetActiveAccount()
 	if activeAccount == nil { // not login yet
@@ -115,10 +99,10 @@ func (s *SyncRawMessageHandler) HandleRawMessage(accountPayload *AccountPayload,
 			if err != nil {
 				return err
 			}
-			setting.InstallationID = nodeConfig.ShhextConfig.InstallationID
+			rmp.setting.InstallationID = nodeConfig.ShhextConfig.InstallationID
-			setting.CurrentNetwork = settingCurrentNetwork
+			rmp.setting.CurrentNetwork = settingCurrentNetwork
 
-			err = s.backend.StartNodeWithAccountAndInitialConfig(*account, accountPayload.password, *setting, nodeConfig, subAccounts)
+			err = s.backend.StartNodeWithAccountAndInitialConfig(*account, accountPayload.password, *rmp.setting, nodeConfig, rmp.subAccounts)
 		}
 		if err != nil {
 			return err
@@ -133,30 +117,5 @@ func (s *SyncRawMessageHandler) HandleRawMessage(accountPayload *AccountPayload,
 	if err != nil {
 		return err
 	}
-	return messenger.HandleSyncRawMessages(rawMessages)
+	return messenger.HandleSyncRawMessages(rmp.rawMessages)
-}
-
-func (s *SyncRawMessageHandler) unmarshalSyncRawMessage(payload []byte) ([]*protobuf.RawMessage, []*accounts.Account, *settings.Settings, error) {
-	var (
-		syncRawMessage protobuf.SyncRawMessage
-		subAccounts    []*accounts.Account
-		setting        *settings.Settings
-	)
-	err := proto.Unmarshal(payload, &syncRawMessage)
-	if err != nil {
-		return nil, nil, nil, err
-	}
-	if syncRawMessage.SubAccountsJsonBytes != nil {
-		err = json.Unmarshal(syncRawMessage.SubAccountsJsonBytes, &subAccounts)
-		if err != nil {
-			return nil, nil, nil, err
-		}
-	}
-	if syncRawMessage.SettingsJsonBytes != nil {
-		err = json.Unmarshal(syncRawMessage.SettingsJsonBytes, &setting)
-		if err != nil {
-			return nil, nil, nil, err
-		}
-	}
-	return syncRawMessage.RawMessages, subAccounts, setting, nil
 }

server/pairing/server.go

@@ -113,7 +113,7 @@ type SenderServer struct {
 	*BaseServer
 	accountMounter      PayloadMounter
 	rawMessageMounter   PayloadMounter
-	installationMounter *InstallationPayloadMounterReceiver
+	installationMounter PayloadMounterReceiver
 }
 
 // NewSenderServer returns a *SenderServer init from the given *SenderServerConfig

server/pairing/sync_device_test.go

@@ -326,33 +326,33 @@ func (s *SyncDeviceSuite) TestPairingSyncDeviceClientAsReceiver() {
 func defaultSettings(generatedAccountInfo generator.GeneratedAccountInfo, derivedAddresses map[string]generator.AccountInfo, mnemonic *string) (*settings.Settings, error) {
 	chatKeyString := derivedAddresses[pathDefaultChat].PublicKey
 
-	settings := &settings.Settings{}
+	syncSettings := &settings.Settings{}
-	settings.KeyUID = generatedAccountInfo.KeyUID
+	syncSettings.KeyUID = generatedAccountInfo.KeyUID
-	settings.Address = types.HexToAddress(generatedAccountInfo.Address)
+	syncSettings.Address = types.HexToAddress(generatedAccountInfo.Address)
-	settings.WalletRootAddress = types.HexToAddress(derivedAddresses[pathWalletRoot].Address)
+	syncSettings.WalletRootAddress = types.HexToAddress(derivedAddresses[pathWalletRoot].Address)
 
 	// Set chat key & name
 	name, err := alias.GenerateFromPublicKeyString(chatKeyString)
 	if err != nil {
 		return nil, err
 	}
-	settings.Name = name
+	syncSettings.Name = name
-	settings.PublicKey = chatKeyString
+	syncSettings.PublicKey = chatKeyString
 
-	settings.DappsAddress = types.HexToAddress(derivedAddresses[pathDefaultWallet].Address)
+	syncSettings.DappsAddress = types.HexToAddress(derivedAddresses[pathDefaultWallet].Address)
-	settings.EIP1581Address = types.HexToAddress(derivedAddresses[pathEIP1581].Address)
+	syncSettings.EIP1581Address = types.HexToAddress(derivedAddresses[pathEIP1581].Address)
-	settings.Mnemonic = mnemonic
+	syncSettings.Mnemonic = mnemonic
 
-	settings.SigningPhrase = "balabala"
+	syncSettings.SigningPhrase = "balabala"
 
-	settings.SendPushNotifications = true
+	syncSettings.SendPushNotifications = true
-	settings.InstallationID = uuid.New().String()
+	syncSettings.InstallationID = uuid.New().String()
-	settings.UseMailservers = true
+	syncSettings.UseMailservers = true
 
-	settings.PreviewPrivacy = true
+	syncSettings.PreviewPrivacy = true
-	settings.Currency = "usd"
+	syncSettings.Currency = "usd"
-	settings.ProfilePicturesVisibility = 1
+	syncSettings.ProfilePicturesVisibility = 1
-	settings.LinkPreviewRequestEnabled = true
+	syncSettings.LinkPreviewRequestEnabled = true
 
 	visibleTokens := make(map[string][]string)
 	visibleTokens["mainnet"] = []string{"SNT"}
@@ -361,14 +361,14 @@ func defaultSettings(generatedAccountInfo generator.GeneratedAccountInfo, derive
 		return nil, err
 	}
 	visibleTokenJSONRaw := json.RawMessage(visibleTokensJSON)
-	settings.WalletVisibleTokens = &visibleTokenJSONRaw
+	syncSettings.WalletVisibleTokens = &visibleTokenJSONRaw
 
 	networks := `[{"id":"goerli_rpc","chain-explorer-link":"https://goerli.etherscan.io/address/","name":"Goerli with upstream RPC","config":{"NetworkId":5,"DataDir":"/ethereum/goerli_rpc","UpstreamConfig":{"Enabled":true,"URL":"https://goerli-archival.gateway.pokt.network/v1/lb/3ef2018191814b7e1009b8d9"}}},{"id":"mainnet_rpc","chain-explorer-link":"https://etherscan.io/address/","name":"Mainnet with upstream RPC","config":{"NetworkId":1,"DataDir":"/ethereum/mainnet_rpc","UpstreamConfig":{"Enabled":true,"URL":"https://eth-archival.gateway.pokt.network/v1/lb/3ef2018191814b7e1009b8d9"}}}]`
 	var networksRawMessage json.RawMessage = []byte(networks)
-	settings.Networks = &networksRawMessage
+	syncSettings.Networks = &networksRawMessage
-	settings.CurrentNetwork = currentNetwork
+	syncSettings.CurrentNetwork = currentNetwork
 
-	return settings, nil
+	return syncSettings, nil
 }
 
 func defaultNodeConfig(installationID, keyUID string) (*params.NodeConfig, error) {