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service.go
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service.go
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package bertymessenger
import (
"archive/tar"
"bytes"
"context"
"encoding/base64"
"errors"
"fmt"
"io"
"sync"
"time"
// nolint:staticcheck // cannot use the new protobuf API while keeping gogoproto
"github.com/golang/protobuf/proto"
ipfs_interface "github.com/ipfs/interface-go-ipfs-core"
"go.uber.org/zap"
"gorm.io/gorm"
"moul.io/u"
"moul.io/zapgorm2"
"moul.io/zapring"
sqlite "berty.tech/berty/v2/go/internal/gorm-sqlcipher"
"berty.tech/berty/v2/go/internal/messengerdb"
"berty.tech/berty/v2/go/internal/messengerpayloads"
"berty.tech/berty/v2/go/internal/messengerutil"
"berty.tech/berty/v2/go/internal/notification"
"berty.tech/berty/v2/go/pkg/bertyversion"
"berty.tech/berty/v2/go/pkg/errcode"
mt "berty.tech/berty/v2/go/pkg/messengertypes"
"berty.tech/weshnet"
weshnet_errcode "berty.tech/weshnet/pkg/errcode"
"berty.tech/weshnet/pkg/lifecycle"
"berty.tech/weshnet/pkg/logutil"
"berty.tech/weshnet/pkg/protocoltypes"
"berty.tech/weshnet/pkg/tyber"
)
type Service interface {
mt.MessengerServiceServer
Close()
}
// service is a Service
var _ Service = (*service)(nil)
type service struct {
logger *zap.Logger
isGroupMonitorEnabled bool
protocolClient protocoltypes.ProtocolServiceClient
startedAt time.Time
db *messengerdb.DBWrapper
dispatcher *Dispatcher
cancelFn func()
optsCleanup func()
ctx context.Context
handlerMutex sync.Mutex
notifmanager notification.Manager
lcmanager *lifecycle.Manager
eventHandler *messengerpayloads.EventHandler
ring *zapring.Core
tyberCleanup func()
logFilePath string
cancelGroupStatus map[string] /*groupPK */ context.CancelFunc
muCancelGroupStatus sync.Mutex
knownPeers map[string] /* peer.ID */ protocoltypes.GroupDeviceStatus_Type
muKnownPeers sync.Mutex
cancelSubsCtx func()
subsCtx context.Context
subsMutex *sync.Mutex
groupsToSubTo map[string]struct{}
accountGroup []byte
grpcInsecure bool
dd debugCommand
// pushReceiver bertypush.MessengerPushReceiver // FIXME(push): unavailable
mt.UnimplementedMessengerServiceServer
}
type Opts struct {
EnableGroupMonitor bool
Logger *zap.Logger
DB *gorm.DB
NotificationManager notification.Manager
LifeCycleManager *lifecycle.Manager
StateBackup *mt.LocalDatabaseState
PlatformPushToken *protocoltypes.PushServiceReceiver
Ring *zapring.Core
GRPCInsecureMode bool
// LogFilePath defines the location of the current session's log file.
//
// This variable is used by svc.TyberHostAttach.
LogFilePath string
}
func (opts *Opts) applyDefaults() (func(), error) {
cleanup := func() {}
if opts.Logger == nil {
opts.Logger = zap.NewNop()
}
if opts.DB == nil {
opts.Logger.Warn("Messenger started without database, creating a volatile one in memory")
zapLogger := zapgorm2.New(opts.Logger.Named("gorm"))
zapLogger.SetAsDefault()
db, err := gorm.Open(sqlite.Open(fmt.Sprintf("file:memdb%d?mode=memory&cache=shared", time.Now().UnixNano())), &gorm.Config{
Logger: zapLogger,
DisableForeignKeyConstraintWhenMigrating: true,
})
if err != nil {
return nil, err
}
cleanup = func() {
sqlDB, _ := db.DB()
u.SilentClose(sqlDB)
}
opts.DB = db
}
if opts.NotificationManager == nil {
opts.NotificationManager = notification.NewNoopManager()
}
if opts.LifeCycleManager == nil {
opts.LifeCycleManager = lifecycle.NewManager(lifecycle.StateActive)
}
opts.Logger = opts.Logger.Named("msg")
return cleanup, nil
}
func databaseStateRestoreAccountHandler(statePointer *mt.LocalDatabaseState) weshnet.RestoreAccountHandler {
return weshnet.RestoreAccountHandler{
Handler: func(header *tar.Header, reader *tar.Reader) (bool, error) {
if header.Name != exportLocalDBState {
return false, nil
}
backupContents := new(bytes.Buffer)
size, err := io.Copy(backupContents, reader)
if err != nil {
return true, errcode.ErrInternal.Wrap(fmt.Errorf("unable to read %d bytes: %w", header.Size, err))
}
if size != header.Size {
return true, errcode.ErrInternal.Wrap(fmt.Errorf("unexpected file size"))
}
if err := proto.Unmarshal(backupContents.Bytes(), statePointer); err != nil {
return true, errcode.ErrDeserialization.Wrap(err)
}
return true, nil
},
PostProcess: func() error {
return nil
},
}
}
func RestoreFromAccountExport(ctx context.Context, reader io.Reader, coreAPI ipfs_interface.CoreAPI, odb *weshnet.WeshOrbitDB, localDBState *mt.LocalDatabaseState, logger *zap.Logger) error {
return weshnet.RestoreAccountExport(ctx, reader, coreAPI, odb, logger, databaseStateRestoreAccountHandler(localDBState))
}
func New(client protocoltypes.ProtocolServiceClient, opts *Opts) (_ Service, err error) {
optsCleanup, err := opts.applyDefaults()
if err != nil {
return nil, errcode.TODO.Wrap(fmt.Errorf("error while applying default of messenger opts: %w", err))
}
tyberCtx, _, tyberEndSection := tyber.Section(context.Background(), opts.Logger, "Initializing MessengerService version "+bertyversion.Version)
defer func() { tyberEndSection(err, "") }()
ctx, cancel := context.WithCancel(context.Background())
db := messengerdb.NewDBWrapper(opts.DB, opts.Logger)
if opts.StateBackup != nil {
tyber.LogStep(tyberCtx, opts.Logger, "Restoring db state")
if err := db.RestoreFromBackup(opts.StateBackup, func() error {
return replayLogsToDB(ctx, client, db, opts.Logger)
}); err != nil {
cancel()
return nil, errcode.ErrDBWrite.Wrap(fmt.Errorf("unable to restore exported state: %w", err))
}
} else if err := db.InitDB(getEventsReplayerForDB(ctx, client, opts.Logger)); err != nil {
cancel()
return nil, errcode.TODO.Wrap(fmt.Errorf("error during db init: %w", err))
}
tyber.LogStep(tyberCtx, opts.Logger, "Database initialization succeeded")
cancel()
ctx, cancel = context.WithCancel(context.Background())
icr, err := client.ServiceGetConfiguration(ctx, &protocoltypes.ServiceGetConfiguration_Request{})
cancel()
if err != nil {
return nil, errcode.TODO.Wrap(fmt.Errorf("error while getting instance configuration: %w", err))
}
tyber.LogStep(tyberCtx, opts.Logger, "Got instance configuration", tyber.WithJSONDetail("InstanceConfiguration", icr))
pkStr := messengerutil.B64EncodeBytes(icr.GetAccountGroupPK())
shortPkStr := pkStr
const shortLen = 6
if len(shortPkStr) > shortLen {
shortPkStr = shortPkStr[:shortLen]
}
opts.Logger = opts.Logger.With(logutil.PrivateString("a", shortPkStr))
ctx, cancel = context.WithCancel(context.Background())
svc := service{
protocolClient: client,
logger: opts.Logger,
isGroupMonitorEnabled: opts.EnableGroupMonitor,
startedAt: time.Now(),
db: db,
notifmanager: opts.NotificationManager,
lcmanager: opts.LifeCycleManager,
dispatcher: NewDispatcher(),
cancelFn: cancel,
optsCleanup: optsCleanup,
ctx: ctx,
handlerMutex: sync.Mutex{},
ring: opts.Ring,
logFilePath: opts.LogFilePath,
cancelGroupStatus: make(map[string] /* groupPK */ context.CancelFunc),
knownPeers: make(map[string] /* peer.ID */ protocoltypes.GroupDeviceStatus_Type),
subsMutex: &sync.Mutex{},
groupsToSubTo: make(map[string]struct{}),
accountGroup: icr.GetAccountGroupPK(),
grpcInsecure: opts.GRPCInsecureMode,
}
svc.eventHandler = messengerpayloads.NewEventHandler(ctx, db, &MetaFetcherFromProtocolClient{client: client}, newPostActionsService(&svc), opts.Logger, svc.dispatcher, false)
// @FIXME(push): temporary use noop push receiver
// svc.pushReceiver = bertypush.NewNoopPushReceiver()
// get or create account in DB
{
acc, err := svc.db.GetAccount()
switch {
case errcode.Is(err, errcode.ErrNotFound): // account not found, create a new one
tyber.LogStep(tyberCtx, opts.Logger, "Account not found, creating a new one", tyber.WithDetail("PublicKey", pkStr))
ret, err := svc.internalInstanceShareableBertyID(ctx, &mt.InstanceShareableBertyID_Request{})
if err != nil {
return nil, errcode.TODO.Wrap(fmt.Errorf("error while creating shareable account link: %w", err))
}
if err = svc.db.FirstOrCreateAccount(pkStr, ret.GetWebURL()); err != nil {
return nil, err
}
case err != nil: // internal error
return nil, errcode.ErrInternal.Wrap(err)
case pkStr != acc.GetPublicKey(): // Check that we are connected to the correct node
// FIXME: use errcode
return nil, errcode.TODO.Wrap(errors.New("messenger's account key does not match protocol's account key"))
default: // account exists, and public keys match
// noop
tyber.LogStep(tyberCtx, opts.Logger, "Found account", tyber.WithDetail("PublicKey", pkStr))
}
}
// monitor messenger lifecycle
go svc.monitorState(ctx)
// Dispatch app notifications to native manager
svc.dispatcher.Register(&NotifieeBundle{StreamEventImpl: func(se *mt.StreamEvent) error {
if se.GetType() != mt.StreamEvent_TypeNotified {
return nil
}
var notif *mt.StreamEvent_Notified
{
payload, err := se.UnmarshalPayload()
if err != nil {
opts.Logger.Error("unable to unmarshal Notified", zap.Error(err))
return nil
}
notif = payload.(*mt.StreamEvent_Notified)
}
if svc.lcmanager.GetCurrentState() == lifecycle.StateInactive {
if err := svc.notifmanager.Notify(¬ification.Notification{
Title: notif.GetTitle(),
Body: notif.GetBody(),
}); err != nil {
opts.Logger.Error("unable to trigger notify", zap.Error(err))
}
}
return nil
}})
if opts.PlatformPushToken != nil {
icr, err = client.ServiceGetConfiguration(ctx, &protocoltypes.ServiceGetConfiguration_Request{})
if err != nil {
return nil, err
}
// FIXME(push): PushSetDeviceToken not available anymore
// if icr.DevicePushToken == nil || (icr.DevicePushToken.TokenType == opts.PlatformPushToken.TokenType && !bytes.Equal(icr.DevicePushToken.Token, opts.PlatformPushToken.Token)) {
// if _, err := client.PushSetDeviceToken(ctx, &protocoltypes.PushSetDeviceToken_Request{
// Receiver: opts.PlatformPushToken,
// }); err != nil {
// return nil, errcode.ErrInternal.Wrap(err)
// }
// }
}
// Subscribe to account group metadata
svc.accountGroup = icr.GetAccountGroupPK()
// subscribe to groups
{
convs, err := svc.db.GetAllConversations()
if err != nil {
return nil, fmt.Errorf("error while fetching conversations from db: %w", err)
}
for _, cv := range convs {
gpkb, err := messengerutil.B64DecodeBytes(cv.GetPublicKey())
if err != nil {
return nil, errcode.ErrDeserialization.Wrap(err)
}
_, err = svc.protocolClient.ActivateGroup(ctx, &protocoltypes.ActivateGroup_Request{GroupPK: gpkb})
if err != nil {
return nil, errcode.TODO.Wrap(err)
}
svc.groupsToSubTo[cv.GetPublicKey()] = struct{}{}
}
}
// subscribe to contact groups
{
contacts, err := svc.db.GetContactsByState(mt.Contact_OutgoingRequestSent)
if err != nil {
return nil, errcode.ErrDBRead.Wrap(fmt.Errorf("error while fetching contacts from db: %w", err))
}
for _, c := range contacts {
gpkb, err := messengerutil.B64DecodeBytes(c.GetConversationPublicKey())
if err != nil {
return nil, errcode.ErrDeserialization.Wrap(err)
}
_, err = svc.protocolClient.ActivateGroup(ctx, &protocoltypes.ActivateGroup_Request{GroupPK: gpkb})
if err != nil {
return nil, errcode.TODO.Wrap(err)
}
svc.groupsToSubTo[c.GetConversationPublicKey()] = struct{}{}
}
}
go svc.manageSubscriptions()
return &svc, nil
}
func (svc *service) sendAccountUserInfo(ctx context.Context, groupPK string) (err error) {
ctx, _, endSection := tyber.Section(ctx, svc.logger, fmt.Sprintf("Sending account info to group %s", groupPK))
defer func() {
if err != nil {
endSection(err, "")
}
}()
pk, err := messengerutil.B64DecodeBytes(groupPK)
if err != nil {
return errcode.ErrDeserialization.Wrap(err)
}
acc, err := svc.db.GetAccount()
if err != nil {
return errcode.ErrDBRead.Wrap(err)
}
am, err := mt.AppMessage_TypeSetUserInfo.MarshalPayload(
messengerutil.TimestampMs(time.Now()),
"",
&mt.AppMessage_SetUserInfo{DisplayName: acc.GetDisplayName()},
)
if err != nil {
return errcode.ErrSerialization.Wrap(err)
}
sendReply, err := svc.protocolClient.AppMetadataSend(ctx, &protocoltypes.AppMetadataSend_Request{GroupPK: pk, Payload: am})
if err != nil {
return errcode.ErrProtocolSend.Wrap(err)
}
endSection(nil, "Sent account info", tyber.WithCIDDetail("CID", sendReply.CID))
return nil
}
func (svc *service) Close() {
ctx, _ := tyber.ContextWithTraceID(svc.ctx)
svc.logger.Debug("Closing MessengerService", tyber.FormatTraceLogFields(ctx)...)
svc.dispatcher.UnregisterAll()
svc.cancelFn()
svc.optsCleanup()
svc.logger.Debug("Closed MessengerService successfully", tyber.FormatStepLogFields(ctx, []tyber.Detail{}, tyber.EndTrace)...)
}
func (svc *service) ActivateGroup(groupPK []byte) error {
svc.subsMutex.Lock()
defer svc.subsMutex.Unlock()
if _, ok := svc.groupsToSubTo[messengerutil.B64EncodeBytes(groupPK)]; ok {
svc.logger.Warn("Already subscribed to group. Don't call subscribeToGroup again.", zap.String("gpk", messengerutil.B64EncodeBytes(groupPK)))
return nil
}
// mark group
svc.groupsToSubTo[messengerutil.B64EncodeBytes(groupPK)] = struct{}{}
// subscribe to group if app is active
if svc.subsCtx != nil {
if err := svc.subscribeToGroup(svc.subsCtx, svc.ctx, groupPK); err != nil {
return err
}
}
svc.logger.Debug("Subscribed to group", tyber.FormatStepLogFields(svc.ctx, []tyber.Detail{
{Name: "GroupPublicKey", Description: messengerutil.B64EncodeBytes(groupPK)},
})...)
return nil
}
func (svc *service) ActivateContactGroup(contactPK []byte) error {
groupPK, err := messengerutil.GroupPKFromContactPK(svc.ctx, svc.protocolClient, contactPK)
if err != nil {
return err
}
return svc.ActivateGroup(groupPK)
}
func (svc *service) SendAck(cid, conversationPK string) error {
tyber.LogStep(svc.ctx, svc.logger, fmt.Sprintf("Sending acknowledge with target %s on group %s", cid, conversationPK))
logError := func(text string, err error) error { return tyber.LogError(svc.ctx, svc.logger, text, err) }
// TODO: Don't send ack if message is already acked to prevent spam in multimember groups
// Maybe wait a few seconds before checking since we're likely to receive the message before any ack
amp, err := mt.AppMessage_TypeAcknowledge.MarshalPayload(0, cid, &mt.AppMessage_Acknowledge{})
if err != nil {
return logError("Failed to marshal acknowledge", err)
}
cpk, err := messengerutil.B64DecodeBytes(conversationPK)
if err != nil {
return logError("Failed to decode conversation public key", err)
}
reply, err := svc.protocolClient.AppMessageSend(svc.ctx, &protocoltypes.AppMessageSend_Request{
GroupPK: cpk,
Payload: amp,
})
if err != nil {
return logError("Protocol error", err)
}
tyber.LogStep(svc.ctx, svc.logger, "Acknowledge sent", tyber.WithCIDDetail("CID", reply.GetCID()))
return nil
}
func (svc *service) sharePushTokenForConversation(conversation *mt.Conversation) error {
if conversation == nil {
return errcode.ErrInvalidInput.Wrap(fmt.Errorf("no conversation supplied"))
}
svc.logger.Info("sharing push token", logutil.PrivateString("conversation-pk", conversation.PublicKey))
account, err := svc.db.GetAccount()
if err != nil {
return errcode.ErrDBRead.Wrap(err)
}
if account.DevicePushToken == nil {
svc.logger.Warn("no push token known, won't share it")
return weshnet_errcode.ErrPushUnknownDestination.Wrap(fmt.Errorf("no push token known, won't share it"))
}
if account.DevicePushServer == nil {
svc.logger.Warn("no push server known, won't share push token")
return weshnet_errcode.ErrPushUnknownProvider.Wrap(fmt.Errorf("no push server known, won't share push token"))
}
pushServer := &protocoltypes.PushServer{}
if err := pushServer.Unmarshal(account.DevicePushServer); err != nil {
return errcode.ErrDeserialization.Wrap(fmt.Errorf("unable to unmarshal push server: %w", err))
}
pushToken := &protocoltypes.PushServiceReceiver{}
if err := pushToken.Unmarshal(account.DevicePushToken); err != nil {
return errcode.ErrDeserialization.Wrap(fmt.Errorf("unable to unmarshal device push token: %w", err))
}
if err := svc.sharePushTokenForConversationInternal(conversation, pushServer, pushToken); err != nil {
return errcode.ErrInternal.Wrap(fmt.Errorf("unable to share device push token: %w", err))
}
return nil
}
func (svc *service) sharePushTokenForConversationInternal(conversation *mt.Conversation, pushServer *protocoltypes.PushServer, pushToken *protocoltypes.PushServiceReceiver) error {
if len(pushToken.Token) == 0 {
return errcode.ErrInvalidInput.Wrap(fmt.Errorf("missing token in PushServiceReceiver"))
}
if pushToken.TokenType == 0 {
return errcode.ErrInvalidInput.Wrap(fmt.Errorf("wrong token type in PushServiceReceiver"))
}
if len(pushToken.RecipientPublicKey) == 0 {
return errcode.ErrInvalidInput.Wrap(fmt.Errorf("missing recipient public key in PushServiceReceiver"))
}
if len(pushToken.BundleID) == 0 {
return errcode.ErrInvalidInput.Wrap(fmt.Errorf("missing bundleID in PushServiceReceiver"))
}
tokenIdentifier := makeSharedPushIdentifier(pushServer, pushToken)
// pubKey, err := messengerutil.B64DecodeBytes(conversation.PublicKey)
// if err != nil {
// return errcode.ErrSerialization.Wrap(err)
// }
if conversation.SharedPushTokenIdentifier != tokenIdentifier {
// FIXME(push): push share token not available anymore
// if _, err := svc.protocolClient.PushShareToken(svc.ctx, &protocoltypes.PushShareToken_Request{
// GroupPK: pubKey,
// Server: pushServer,
// Receiver: pushToken,
// }); err != nil {
// return err
// }
if _, err := svc.db.UpdateConversation(mt.Conversation{PublicKey: conversation.PublicKey, SharedPushTokenIdentifier: tokenIdentifier}); err != nil {
return errcode.ErrDBWrite.Wrap(err)
}
conv, err := svc.db.GetConversationByPK(conversation.PublicKey)
if err != nil {
return errcode.ErrDBRead.Wrap(err)
}
if err := svc.dispatcher.StreamEvent(mt.StreamEvent_TypeConversationUpdated, &mt.StreamEvent_ConversationUpdated{Conversation: conv}, false); err != nil {
return errcode.TODO.Wrap(err)
}
}
return nil
}
func makeSharedPushIdentifier(server *protocoltypes.PushServer, token *protocoltypes.PushServiceReceiver) string {
// @TODO(@gfanton): make something smarter here
b64serverKey := base64.StdEncoding.EncodeToString(server.ServerKey)
b64token := base64.StdEncoding.EncodeToString(token.Token)
return fmt.Sprintf("%s-%s", b64serverKey, b64token)
}
func (svc *service) pushDeviceTokenBroadcast(account *mt.Account) error {
conversations, err := svc.db.GetAllConversations()
if err != nil {
return errcode.ErrDBRead.Wrap(err)
}
svc.logger.Info("sharing push token", zap.Int("conversation-count", len(conversations)))
server := &protocoltypes.PushServer{}
if err := server.Unmarshal(account.DevicePushServer); err != nil {
return errcode.ErrDeserialization.Wrap(err)
}
token := &protocoltypes.PushServiceReceiver{}
if err := token.Unmarshal(account.DevicePushToken); err != nil {
return errcode.ErrDeserialization.Wrap(err)
}
for _, c := range conversations {
if err := svc.sharePushTokenForConversationInternal(c, server, token); err != nil {
svc.logger.Error("unable to share push token on conversation", logutil.PrivateString("conversation-pk", c.PublicKey), zap.Error(err))
}
}
return nil
}
type MetaFetcherFromProtocolClient struct {
client protocoltypes.ProtocolServiceClient
}
func (svc *MetaFetcherFromProtocolClient) OwnMemberAndDevicePKForConversation(ctx context.Context, conversationPK []byte) (member []byte, device []byte, err error) {
gi, err := svc.client.GroupInfo(ctx, &protocoltypes.GroupInfo_Request{GroupPK: conversationPK})
if err != nil {
return nil, nil, err
}
return gi.MemberPK, gi.DevicePK, nil
}
func (svc *MetaFetcherFromProtocolClient) GroupPKForContact(ctx context.Context, contactPK []byte) ([]byte, error) {
groupInfoReply, err := svc.client.GroupInfo(ctx, &protocoltypes.GroupInfo_Request{ContactPK: contactPK})
if err != nil {
return nil, errcode.ErrProtocolGetGroupInfo.Wrap(err)
}
return groupInfoReply.GetGroup().GetPublicKey(), nil
}