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Handle m.room.tombstone
events in the UserAPI (#2864)
Fixes #2863 and makes ``` /upgrade preserves direct room state local user has tags copied to the new room remote user has tags copied to the new room ``` pass.
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parent
a7b74176e3
commit
c125203eb6
@ -759,3 +759,6 @@ Can filter rooms/{roomId}/members
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Current state appears in timeline in private history with many messages after
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AS can publish rooms in their own list
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AS and main public room lists are separate
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/upgrade preserves direct room state
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local user has tags copied to the new room
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remote user has tags copied to the new room
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@ -2,12 +2,16 @@ package consumers
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import (
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"context"
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"database/sql"
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"encoding/json"
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"errors"
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"fmt"
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"strings"
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"sync"
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"time"
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"github.com/tidwall/gjson"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/nats-io/nats.go"
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log "github.com/sirupsen/logrus"
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@ -185,13 +189,115 @@ func (s *OutputRoomEventConsumer) storeMessageStats(ctx context.Context, eventTy
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}
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}
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func (s *OutputRoomEventConsumer) handleRoomUpgrade(ctx context.Context, oldRoomID, newRoomID string, localMembers []*localMembership, roomSize int) error {
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for _, membership := range localMembers {
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// Copy any existing push rules from old -> new room
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if err := s.copyPushrules(ctx, oldRoomID, newRoomID, membership.Localpart); err != nil {
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return err
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}
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// preserve m.direct room state
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if err := s.updateMDirect(ctx, oldRoomID, newRoomID, membership.Localpart, roomSize); err != nil {
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return err
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}
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// copy existing m.tag entries, if any
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if err := s.copyTags(ctx, oldRoomID, newRoomID, membership.Localpart); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *OutputRoomEventConsumer) copyPushrules(ctx context.Context, oldRoomID, newRoomID string, localpart string) error {
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pushRules, err := s.db.QueryPushRules(ctx, localpart)
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if err != nil {
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return fmt.Errorf("failed to query pushrules for user: %w", err)
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}
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if pushRules == nil {
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return nil
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}
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for _, roomRule := range pushRules.Global.Room {
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if roomRule.RuleID != oldRoomID {
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continue
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}
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cpRool := *roomRule
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cpRool.RuleID = newRoomID
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pushRules.Global.Room = append(pushRules.Global.Room, &cpRool)
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rules, err := json.Marshal(pushRules)
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if err != nil {
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return err
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}
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if err = s.db.SaveAccountData(ctx, localpart, "", "m.push_rules", rules); err != nil {
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return fmt.Errorf("failed to update pushrules: %w", err)
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}
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}
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return nil
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}
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// updateMDirect copies the "is_direct" flag from oldRoomID to newROomID
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func (s *OutputRoomEventConsumer) updateMDirect(ctx context.Context, oldRoomID, newRoomID, localpart string, roomSize int) error {
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// this is most likely not a DM, so skip updating m.direct state
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if roomSize > 2 {
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return nil
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}
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// Get direct message state
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directChatsRaw, err := s.db.GetAccountDataByType(ctx, localpart, "", "m.direct")
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if err != nil {
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return fmt.Errorf("failed to get m.direct from database: %w", err)
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}
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directChats := gjson.ParseBytes(directChatsRaw)
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newDirectChats := make(map[string][]string)
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// iterate over all userID -> roomIDs
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directChats.ForEach(func(userID, roomIDs gjson.Result) bool {
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var found bool
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for _, roomID := range roomIDs.Array() {
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newDirectChats[userID.Str] = append(newDirectChats[userID.Str], roomID.Str)
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// add the new roomID to m.direct
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if roomID.Str == oldRoomID {
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found = true
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newDirectChats[userID.Str] = append(newDirectChats[userID.Str], newRoomID)
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}
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}
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// Only hit the database if we found the old room as a DM for this user
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if found {
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var data []byte
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data, err = json.Marshal(newDirectChats)
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if err != nil {
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return true
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}
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if err = s.db.SaveAccountData(ctx, localpart, "", "m.direct", data); err != nil {
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return true
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}
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}
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return true
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})
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if err != nil {
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return fmt.Errorf("failed to update m.direct state")
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}
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return nil
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}
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func (s *OutputRoomEventConsumer) copyTags(ctx context.Context, oldRoomID, newRoomID, localpart string) error {
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tag, err := s.db.GetAccountDataByType(ctx, localpart, oldRoomID, "m.tag")
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if err != nil && !errors.Is(err, sql.ErrNoRows) {
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return err
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}
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if tag == nil {
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return nil
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}
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return s.db.SaveAccountData(ctx, localpart, newRoomID, "m.tag", tag)
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}
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func (s *OutputRoomEventConsumer) processMessage(ctx context.Context, event *gomatrixserverlib.HeaderedEvent, streamPos uint64) error {
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members, roomSize, err := s.localRoomMembers(ctx, event.RoomID())
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if err != nil {
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return fmt.Errorf("s.localRoomMembers: %w", err)
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}
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if event.Type() == gomatrixserverlib.MRoomMember {
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switch {
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case event.Type() == gomatrixserverlib.MRoomMember:
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cevent := gomatrixserverlib.HeaderedToClientEvent(event, gomatrixserverlib.FormatAll)
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var member *localMembership
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member, err = newLocalMembership(&cevent)
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@ -203,6 +309,15 @@ func (s *OutputRoomEventConsumer) processMessage(ctx context.Context, event *gom
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// should also be pushed to the target user.
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members = append(members, member)
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}
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case event.Type() == "m.room.tombstone" && event.StateKeyEquals(""):
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// Handle room upgrades
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oldRoomID := event.RoomID()
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newRoomID := gjson.GetBytes(event.Content(), "replacement_room").Str
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if err = s.handleRoomUpgrade(ctx, oldRoomID, newRoomID, members, roomSize); err != nil {
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// while inconvenient, this shouldn't stop us from sending push notifications
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log.WithError(err).Errorf("UserAPI: failed to handle room upgrade for users")
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}
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}
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// TODO: run in parallel with localRoomMembers.
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