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Cleanup stale device lists for users we don't share a room with anymore (#2857)

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The stale device lists table might contain entries for users we don't
share a room with anymore. This now asks the roomserver about left users
and removes those entries from the table.

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This commit is contained in:
Till 2022-12-12 08:20:59 +01:00 • committed by GitHub
parent aaf4e5c865
commit 7d2344049d
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31 changed files with 666 additions and 40 deletions
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34
roomserver/storage/postgres/membership_table.go
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@ -21,12 +21,13 @@ import (
"fmt"
"github.com/lib/pq"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/roomserver/storage/postgres/deltas"
"github.com/matrix-org/dendrite/roomserver/storage/tables"
"github.com/matrix-org/dendrite/roomserver/types"
"github.com/matrix-org/gomatrixserverlib"
)
const membershipSchema = `
@ -157,6 +158,12 @@ const selectServerInRoomSQL = "" +
" JOIN roomserver_event_state_keys ON roomserver_membership.target_nid = roomserver_event_state_keys.event_state_key_nid" +
" WHERE membership_nid = $1 AND room_nid = $2 AND event_state_key LIKE '%:' || $3 LIMIT 1"
const selectJoinedUsersSQL = `
SELECT DISTINCT target_nid
FROM roomserver_membership m
WHERE membership_nid > $1 AND target_nid = ANY($2)
`
type membershipStatements struct {
insertMembershipStmt *sql.Stmt
selectMembershipForUpdateStmt *sql.Stmt
@ -174,6 +181,7 @@ type membershipStatements struct {
selectLocalServerInRoomStmt *sql.Stmt
selectServerInRoomStmt *sql.Stmt
deleteMembershipStmt *sql.Stmt
selectJoinedUsersStmt *sql.Stmt
}
func CreateMembershipTable(db *sql.DB) error {
@ -209,9 +217,33 @@ func PrepareMembershipTable(db *sql.DB) (tables.Membership, error) {
{&s.selectLocalServerInRoomStmt, selectLocalServerInRoomSQL},
{&s.selectServerInRoomStmt, selectServerInRoomSQL},
{&s.deleteMembershipStmt, deleteMembershipSQL},
{&s.selectJoinedUsersStmt, selectJoinedUsersSQL},
}.Prepare(db)
}
func (s *membershipStatements) SelectJoinedUsers(
ctx context.Context, txn *sql.Tx,
targetUserNIDs []types.EventStateKeyNID,
) ([]types.EventStateKeyNID, error) {
result := make([]types.EventStateKeyNID, 0, len(targetUserNIDs))
stmt := sqlutil.TxStmt(txn, s.selectJoinedUsersStmt)
rows, err := stmt.QueryContext(ctx, tables.MembershipStateLeaveOrBan, pq.Array(targetUserNIDs))
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "SelectJoinedUsers: rows.close() failed")
var targetNID types.EventStateKeyNID
for rows.Next() {
if err = rows.Scan(&targetNID); err != nil {
return nil, err
}
result = append(result, targetNID)
}
return result, rows.Err()
}
func (s *membershipStatements) InsertMembership(
ctx context.Context, txn *sql.Tx,
roomNID types.RoomNID, targetUserNID types.EventStateKeyNID,