status-go/protocol/messenger_group_chat.go

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package protocol
import (
"context"
"crypto/ecdsa"
"encoding/hex"
"errors"
"github.com/golang/protobuf/proto"
"go.uber.org/zap"
"github.com/status-im/status-go/eth-node/crypto"
"github.com/status-im/status-go/eth-node/types"
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"github.com/status-im/status-go/images"
"github.com/status-im/status-go/protocol/common"
"github.com/status-im/status-go/protocol/protobuf"
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"github.com/status-im/status-go/protocol/requests"
v1protocol "github.com/status-im/status-go/protocol/v1"
)
var ErrGroupChatAddedContacts = errors.New("group-chat: can't add members who are not mutual contacts")
func (m *Messenger) validateAddedGroupMembers(members []string) error {
for _, memberPubkey := range members {
contactID, err := contactIDFromPublicKeyString(memberPubkey)
if err != nil {
return err
}
contact, _ := m.allContacts.Load(contactID)
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if contact == nil || !contact.mutual() {
return ErrGroupChatAddedContacts
}
}
return nil
}
func (m *Messenger) CreateGroupChatWithMembers(ctx context.Context, name string, members []string) (*MessengerResponse, error) {
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var convertedKeyMembers []string
for _, m := range members {
k, err := requests.ConvertCompressedToLegacyKey(m)
if err != nil {
return nil, err
}
convertedKeyMembers = append(convertedKeyMembers, k)
}
if err := m.validateAddedGroupMembers(convertedKeyMembers); err != nil {
return nil, err
}
var response MessengerResponse
logger := m.logger.With(zap.String("site", "CreateGroupChatWithMembers"))
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logger.Info("Creating group chat", zap.String("name", name), zap.Any("members", convertedKeyMembers))
chat := CreateGroupChat(m.getTimesource())
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
group, err := v1protocol.NewGroupWithCreator(name, chat.Color, clock, m.identity)
if err != nil {
return nil, err
}
chat.LastClockValue = clock
chat.updateChatFromGroupMembershipChanges(group)
chat.Joined = int64(m.getTimesource().GetCurrentTime())
clock, _ = chat.NextClockAndTimestamp(m.getTimesource())
// Add members
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if len(convertedKeyMembers) > 0 {
event := v1protocol.NewMembersAddedEvent(convertedKeyMembers, clock)
event.ChatID = chat.ID
err = event.Sign(m.identity)
if err != nil {
return nil, err
}
err = group.ProcessEvent(event)
if err != nil {
return nil, err
}
}
recipients, err := stringSliceToPublicKeys(group.Members())
if err != nil {
return nil, err
}
encodedMessage, err := m.sender.EncodeMembershipUpdate(group, nil)
if err != nil {
return nil, err
}
m.allChats.Store(chat.ID, &chat)
_, err = m.dispatchMessage(ctx, common.RawMessage{
LocalChatID: chat.ID,
Payload: encodedMessage,
MessageType: protobuf.ApplicationMetadataMessage_MEMBERSHIP_UPDATE_MESSAGE,
Recipients: recipients,
})
if err != nil {
return nil, err
}
chat.updateChatFromGroupMembershipChanges(group)
return m.addMessagesAndChat(&chat, buildSystemMessages(chat.MembershipUpdates, m.systemMessagesTranslations), &response)
}
func (m *Messenger) CreateGroupChatFromInvitation(name string, chatID string, adminPK string) (*MessengerResponse, error) {
var response MessengerResponse
logger := m.logger.With(zap.String("site", "CreateGroupChatFromInvitation"))
logger.Info("Creating group chat from invitation", zap.String("name", name))
chat := CreateGroupChat(m.getTimesource())
chat.ID = chatID
chat.Name = name
chat.InvitationAdmin = adminPK
response.AddChat(&chat)
return &response, m.saveChat(&chat)
}
type removeMembersFromGroupChatResponse struct {
oldRecipients []*ecdsa.PublicKey
group *v1protocol.Group
encodedProtobuf []byte
}
func (m *Messenger) removeMembersFromGroupChat(ctx context.Context, chat *Chat, members []string) (*removeMembersFromGroupChatResponse, error) {
chatID := chat.ID
logger := m.logger.With(zap.String("site", "RemoveMembersFromGroupChat"))
logger.Info("Removing members form group chat", zap.String("chatID", chatID), zap.Any("members", members))
group, err := newProtocolGroupFromChat(chat)
if err != nil {
return nil, err
}
// We save the initial recipients as we want to send updates to also
// the members kicked out
oldRecipients, err := stringSliceToPublicKeys(group.Members())
if err != nil {
return nil, err
}
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
for _, member := range members {
// Remove member
event := v1protocol.NewMemberRemovedEvent(member, clock)
event.ChatID = chat.ID
err = event.Sign(m.identity)
if err != nil {
return nil, err
}
err = group.ProcessEvent(event)
if err != nil {
return nil, err
}
}
encoded, err := m.sender.EncodeMembershipUpdate(group, nil)
if err != nil {
return nil, err
}
return &removeMembersFromGroupChatResponse{
oldRecipients: oldRecipients,
group: group,
encodedProtobuf: encoded,
}, nil
}
func (m *Messenger) RemoveMembersFromGroupChat(ctx context.Context, chatID string, members []string) (*MessengerResponse, error) {
var response MessengerResponse
chat, ok := m.allChats.Load(chatID)
if !ok {
return nil, ErrChatNotFound
}
removeMembersResponse, err := m.removeMembersFromGroupChat(ctx, chat, members)
if err != nil {
return nil, err
}
_, err = m.dispatchMessage(ctx, common.RawMessage{
LocalChatID: chat.ID,
Payload: removeMembersResponse.encodedProtobuf,
MessageType: protobuf.ApplicationMetadataMessage_MEMBERSHIP_UPDATE_MESSAGE,
Recipients: removeMembersResponse.oldRecipients,
})
if err != nil {
return nil, err
}
chat.updateChatFromGroupMembershipChanges(removeMembersResponse.group)
return m.addMessagesAndChat(chat, buildSystemMessages(chat.MembershipUpdates, m.systemMessagesTranslations), &response)
}
func (m *Messenger) AddMembersToGroupChat(ctx context.Context, chatID string, members []string) (*MessengerResponse, error) {
if err := m.validateAddedGroupMembers(members); err != nil {
return nil, err
}
var response MessengerResponse
logger := m.logger.With(zap.String("site", "AddMembersFromGroupChat"))
logger.Info("Adding members form group chat", zap.String("chatID", chatID), zap.Any("members", members))
chat, ok := m.allChats.Load(chatID)
if !ok {
return nil, ErrChatNotFound
}
group, err := newProtocolGroupFromChat(chat)
if err != nil {
return nil, err
}
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
// Add members
event := v1protocol.NewMembersAddedEvent(members, clock)
event.ChatID = chat.ID
err = event.Sign(m.identity)
if err != nil {
return nil, err
}
//approve invitations
for _, member := range members {
logger.Info("ApproveInvitationByChatIdAndFrom", zap.String("chatID", chatID), zap.Any("member", member))
groupChatInvitation := &GroupChatInvitation{
GroupChatInvitation: &protobuf.GroupChatInvitation{
ChatId: chat.ID,
},
From: member,
}
groupChatInvitation, err = m.persistence.InvitationByID(groupChatInvitation.ID())
if err != nil && err != common.ErrRecordNotFound {
return nil, err
}
if groupChatInvitation != nil {
groupChatInvitation.State = protobuf.GroupChatInvitation_APPROVED
err := m.persistence.SaveInvitation(groupChatInvitation)
if err != nil {
return nil, err
}
response.Invitations = append(response.Invitations, groupChatInvitation)
}
}
err = group.ProcessEvent(event)
if err != nil {
return nil, err
}
recipients, err := stringSliceToPublicKeys(group.Members())
if err != nil {
return nil, err
}
encodedMessage, err := m.sender.EncodeMembershipUpdate(group, nil)
if err != nil {
return nil, err
}
_, err = m.dispatchMessage(ctx, common.RawMessage{
LocalChatID: chat.ID,
Payload: encodedMessage,
MessageType: protobuf.ApplicationMetadataMessage_MEMBERSHIP_UPDATE_MESSAGE,
Recipients: recipients,
})
if err != nil {
return nil, err
}
chat.updateChatFromGroupMembershipChanges(group)
return m.addMessagesAndChat(chat, buildSystemMessages([]v1protocol.MembershipUpdateEvent{event}, m.systemMessagesTranslations), &response)
}
func (m *Messenger) ChangeGroupChatName(ctx context.Context, chatID string, name string) (*MessengerResponse, error) {
logger := m.logger.With(zap.String("site", "ChangeGroupChatName"))
logger.Info("Changing group chat name", zap.String("chatID", chatID), zap.String("name", name))
chat, ok := m.allChats.Load(chatID)
if !ok {
return nil, ErrChatNotFound
}
group, err := newProtocolGroupFromChat(chat)
if err != nil {
return nil, err
}
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
// Change name
event := v1protocol.NewNameChangedEvent(name, clock)
event.ChatID = chat.ID
err = event.Sign(m.identity)
if err != nil {
return nil, err
}
// Update in-memory group
err = group.ProcessEvent(event)
if err != nil {
return nil, err
}
recipients, err := stringSliceToPublicKeys(group.Members())
if err != nil {
return nil, err
}
encodedMessage, err := m.sender.EncodeMembershipUpdate(group, nil)
if err != nil {
return nil, err
}
_, err = m.dispatchMessage(ctx, common.RawMessage{
LocalChatID: chat.ID,
Payload: encodedMessage,
MessageType: protobuf.ApplicationMetadataMessage_MEMBERSHIP_UPDATE_MESSAGE,
Recipients: recipients,
})
if err != nil {
return nil, err
}
chat.updateChatFromGroupMembershipChanges(group)
var response MessengerResponse
return m.addMessagesAndChat(chat, buildSystemMessages([]v1protocol.MembershipUpdateEvent{event}, m.systemMessagesTranslations), &response)
}
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func (m *Messenger) EditGroupChat(ctx context.Context, chatID string, name string, color string, image images.CroppedImage) (*MessengerResponse, error) {
logger := m.logger.With(zap.String("site", "EditGroupChat"))
logger.Info("Editing group chat details", zap.String("chatID", chatID), zap.String("name", name), zap.String("color", color))
chat, ok := m.allChats.Load(chatID)
if !ok {
return nil, ErrChatNotFound
}
group, err := newProtocolGroupFromChat(chat)
if err != nil {
return nil, err
}
signAndProcessEvent := func(m *Messenger, event *v1protocol.MembershipUpdateEvent) error {
err := event.Sign(m.identity)
if err != nil {
return err
}
err = group.ProcessEvent(*event)
if err != nil {
return err
}
return nil
}
var events []v1protocol.MembershipUpdateEvent
if chat.Name != name {
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
event := v1protocol.NewNameChangedEvent(name, clock)
event.ChatID = chat.ID
err = signAndProcessEvent(m, &event)
if err != nil {
return nil, err
}
events = append(events, event)
}
if chat.Color != color {
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
event := v1protocol.NewColorChangedEvent(color, clock)
event.ChatID = chat.ID
err = signAndProcessEvent(m, &event)
if err != nil {
return nil, err
}
events = append(events, event)
}
if len(image.ImagePath) > 0 {
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payload, err := images.OpenAndAdjustImage(image, true)
if err != nil {
return nil, err
}
// prepare event
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
event := v1protocol.NewImageChangedEvent(payload, clock)
event.ChatID = chat.ID
err = signAndProcessEvent(m, &event)
if err != nil {
return nil, err
}
events = append(events, event)
}
recipients, err := stringSliceToPublicKeys(group.Members())
if err != nil {
return nil, err
}
encodedMessage, err := m.sender.EncodeMembershipUpdate(group, nil)
if err != nil {
return nil, err
}
_, err = m.dispatchMessage(ctx, common.RawMessage{
LocalChatID: chat.ID,
Payload: encodedMessage,
MessageType: protobuf.ApplicationMetadataMessage_MEMBERSHIP_UPDATE_MESSAGE,
Recipients: recipients,
})
if err != nil {
return nil, err
}
chat.updateChatFromGroupMembershipChanges(group)
var response MessengerResponse
return m.addMessagesAndChat(chat, buildSystemMessages(events, m.systemMessagesTranslations), &response)
}
func (m *Messenger) SendGroupChatInvitationRequest(ctx context.Context, chatID string, adminPK string,
message string) (*MessengerResponse, error) {
logger := m.logger.With(zap.String("site", "SendGroupChatInvitationRequest"))
logger.Info("Sending group chat invitation request", zap.String("chatID", chatID),
zap.String("adminPK", adminPK), zap.String("message", message))
var response MessengerResponse
// Get chat and clock
chat, ok := m.allChats.Load(chatID)
if !ok {
return nil, ErrChatNotFound
}
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
invitationR := &GroupChatInvitation{
GroupChatInvitation: &protobuf.GroupChatInvitation{
Clock: clock,
ChatId: chatID,
IntroductionMessage: message,
State: protobuf.GroupChatInvitation_REQUEST,
},
From: types.EncodeHex(crypto.FromECDSAPub(&m.identity.PublicKey)),
}
encodedMessage, err := proto.Marshal(invitationR.GetProtobuf())
if err != nil {
return nil, err
}
spec := common.RawMessage{
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LocalChatID: adminPK,
Payload: encodedMessage,
MessageType: protobuf.ApplicationMetadataMessage_GROUP_CHAT_INVITATION,
ResendType: common.ResendTypeDataSync,
}
pkey, err := hex.DecodeString(adminPK[2:])
if err != nil {
return nil, err
}
// Safety check, make sure is well formed
adminpk, err := crypto.UnmarshalPubkey(pkey)
if err != nil {
return nil, err
}
id, err := m.sender.SendPrivate(ctx, adminpk, &spec)
if err != nil {
return nil, err
}
spec.ID = types.EncodeHex(id)
spec.SendCount++
err = m.persistence.SaveRawMessage(&spec)
if err != nil {
return nil, err
}
response.Invitations = []*GroupChatInvitation{invitationR}
err = m.persistence.SaveInvitation(invitationR)
if err != nil {
return nil, err
}
return &response, nil
}
func (m *Messenger) GetGroupChatInvitations() ([]*GroupChatInvitation, error) {
return m.persistence.GetGroupChatInvitations()
}
func (m *Messenger) SendGroupChatInvitationRejection(ctx context.Context, invitationRequestID string) (*MessengerResponse, error) {
logger := m.logger.With(zap.String("site", "SendGroupChatInvitationRejection"))
logger.Info("Sending group chat invitation reject", zap.String("invitationRequestID", invitationRequestID))
invitationR, err := m.persistence.InvitationByID(invitationRequestID)
if err != nil {
return nil, err
}
invitationR.State = protobuf.GroupChatInvitation_REJECTED
// Get chat and clock
chat, ok := m.allChats.Load(invitationR.ChatId)
if !ok {
return nil, ErrChatNotFound
}
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
invitationR.Clock = clock
encodedMessage, err := proto.Marshal(invitationR.GetProtobuf())
if err != nil {
return nil, err
}
spec := common.RawMessage{
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LocalChatID: invitationR.From,
Payload: encodedMessage,
MessageType: protobuf.ApplicationMetadataMessage_GROUP_CHAT_INVITATION,
ResendType: common.ResendTypeDataSync,
}
pkey, err := hex.DecodeString(invitationR.From[2:])
if err != nil {
return nil, err
}
// Safety check, make sure is well formed
userpk, err := crypto.UnmarshalPubkey(pkey)
if err != nil {
return nil, err
}
id, err := m.sender.SendPrivate(ctx, userpk, &spec)
if err != nil {
return nil, err
}
spec.ID = types.EncodeHex(id)
spec.SendCount++
err = m.persistence.SaveRawMessage(&spec)
if err != nil {
return nil, err
}
var response MessengerResponse
response.Invitations = []*GroupChatInvitation{invitationR}
err = m.persistence.SaveInvitation(invitationR)
if err != nil {
return nil, err
}
return &response, nil
}
func (m *Messenger) AddAdminsToGroupChat(ctx context.Context, chatID string, members []string) (*MessengerResponse, error) {
var response MessengerResponse
logger := m.logger.With(zap.String("site", "AddAdminsToGroupChat"))
logger.Info("Add admins to group chat", zap.String("chatID", chatID), zap.Any("members", members))
chat, ok := m.allChats.Load(chatID)
if !ok {
return nil, ErrChatNotFound
}
group, err := newProtocolGroupFromChat(chat)
if err != nil {
return nil, err
}
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
// Add members
event := v1protocol.NewAdminsAddedEvent(members, clock)
event.ChatID = chat.ID
err = event.Sign(m.identity)
if err != nil {
return nil, err
}
err = group.ProcessEvent(event)
if err != nil {
return nil, err
}
recipients, err := stringSliceToPublicKeys(group.Members())
if err != nil {
return nil, err
}
encodedMessage, err := m.sender.EncodeMembershipUpdate(group, nil)
if err != nil {
return nil, err
}
_, err = m.dispatchMessage(ctx, common.RawMessage{
LocalChatID: chat.ID,
Payload: encodedMessage,
MessageType: protobuf.ApplicationMetadataMessage_MEMBERSHIP_UPDATE_MESSAGE,
Recipients: recipients,
})
if err != nil {
return nil, err
}
chat.updateChatFromGroupMembershipChanges(group)
return m.addMessagesAndChat(chat, buildSystemMessages([]v1protocol.MembershipUpdateEvent{event}, m.systemMessagesTranslations), &response)
}
// Kept only for backward compatibility (auto-join), explicit join has been removed
func (m *Messenger) ConfirmJoiningGroup(ctx context.Context, chatID string) (*MessengerResponse, error) {
var response MessengerResponse
chat, ok := m.allChats.Load(chatID)
if !ok {
return nil, ErrChatNotFound
}
_, err := m.Join(chat)
if err != nil {
return nil, err
}
group, err := newProtocolGroupFromChat(chat)
if err != nil {
return nil, err
}
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
event := v1protocol.NewMemberJoinedEvent(
clock,
)
event.ChatID = chat.ID
err = event.Sign(m.identity)
if err != nil {
return nil, err
}
err = group.ProcessEvent(event)
if err != nil {
return nil, err
}
recipients, err := stringSliceToPublicKeys(group.Members())
if err != nil {
return nil, err
}
encodedMessage, err := m.sender.EncodeMembershipUpdate(group, nil)
if err != nil {
return nil, err
}
_, err = m.dispatchMessage(ctx, common.RawMessage{
LocalChatID: chat.ID,
Payload: encodedMessage,
MessageType: protobuf.ApplicationMetadataMessage_MEMBERSHIP_UPDATE_MESSAGE,
Recipients: recipients,
})
if err != nil {
return nil, err
}
chat.updateChatFromGroupMembershipChanges(group)
chat.Joined = int64(m.getTimesource().GetCurrentTime())
return m.addMessagesAndChat(chat, buildSystemMessages([]v1protocol.MembershipUpdateEvent{event}, m.systemMessagesTranslations), &response)
}
func (m *Messenger) leaveGroupChat(ctx context.Context, response *MessengerResponse, chatID string, remove bool, shouldBeSynced bool) (*MessengerResponse, error) {
chat, ok := m.allChats.Load(chatID)
if !ok {
return nil, ErrChatNotFound
}
amIMember := chat.HasMember(common.PubkeyToHex(&m.identity.PublicKey))
if amIMember {
chat.RemoveMember(common.PubkeyToHex(&m.identity.PublicKey))
group, err := newProtocolGroupFromChat(chat)
if err != nil {
return nil, err
}
clock, _ := chat.NextClockAndTimestamp(m.getTimesource())
event := v1protocol.NewMemberRemovedEvent(
contactIDFromPublicKey(&m.identity.PublicKey),
clock,
)
event.ChatID = chat.ID
err = event.Sign(m.identity)
if err != nil {
return nil, err
}
err = group.ProcessEvent(event)
if err != nil {
return nil, err
}
recipients, err := stringSliceToPublicKeys(group.Members())
if err != nil {
return nil, err
}
encodedMessage, err := m.sender.EncodeMembershipUpdate(group, nil)
if err != nil {
return nil, err
}
// shouldBeSynced is false if we got here because a synced client has already
// sent the leave group message. In that case we don't need to send it again.
if shouldBeSynced {
_, err = m.dispatchMessage(ctx, common.RawMessage{
LocalChatID: chat.ID,
Payload: encodedMessage,
MessageType: protobuf.ApplicationMetadataMessage_MEMBERSHIP_UPDATE_MESSAGE,
Recipients: recipients,
})
if err != nil {
return nil, err
}
}
chat.updateChatFromGroupMembershipChanges(group)
response.AddMessages(buildSystemMessages([]v1protocol.MembershipUpdateEvent{event}, m.systemMessagesTranslations))
err = m.persistence.SaveMessages(response.Messages())
if err != nil {
return nil, err
}
}
if remove {
chat.Active = false
}
if remove && shouldBeSynced {
err := m.syncChatRemoving(ctx, chat.ID, m.dispatchMessage)
if err != nil {
return nil, err
}
}
response.AddChat(chat)
return response, m.saveChat(chat)
}
func (m *Messenger) LeaveGroupChat(ctx context.Context, chatID string, remove bool) (*MessengerResponse, error) {
_, err := m.DismissAllActivityCenterNotificationsFromChatID(ctx, chatID, m.GetCurrentTimeInMillis())
if err != nil {
return nil, err
}
var response MessengerResponse
return m.leaveGroupChat(ctx, &response, chatID, remove, true)
}
// Decline all pending group invites from a user
func (m *Messenger) DeclineAllPendingGroupInvitesFromUser(ctx context.Context, response *MessengerResponse, userPublicKey string) (*MessengerResponse, error) {
// Decline group invites from active chats
chats, err := m.persistence.Chats()
if err != nil {
return nil, err
}
for _, chat := range chats {
if chat.ChatType == ChatTypePrivateGroupChat &&
chat.ReceivedInvitationAdmin == userPublicKey &&
chat.Joined == 0 && chat.Active {
response, err = m.leaveGroupChat(ctx, response, chat.ID, true, true)
if err != nil {
return nil, err
}
}
}
// Decline group invites from activity center notifications
notifications, err := m.AcceptActivityCenterNotificationsForInvitesFromUser(ctx, userPublicKey, m.GetCurrentTimeInMillis())
if err != nil {
return nil, err
}
for _, notification := range notifications {
response, err = m.leaveGroupChat(ctx, response, notification.ChatID, true, true)
if err != nil {
return nil, err
}
}
return response, nil
}