mirror of
https://github.com/matrix-org/dendrite.git
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7b862384a7
This will be used to determine who to send device list updates to. It can also be used to determine who to send presence info to.
92 lines
3.3 KiB
Go
92 lines
3.3 KiB
Go
// Copyright 2020 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package shared
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import (
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"context"
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"database/sql"
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"fmt"
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"github.com/matrix-org/dendrite/currentstateserver/storage/tables"
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"github.com/matrix-org/dendrite/internal/eventutil"
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"github.com/matrix-org/dendrite/internal/sqlutil"
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"github.com/matrix-org/gomatrixserverlib"
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)
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type Database struct {
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DB *sql.DB
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CurrentRoomState tables.CurrentRoomState
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}
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func (d *Database) GetStateEvent(ctx context.Context, roomID, evType, stateKey string) (*gomatrixserverlib.HeaderedEvent, error) {
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return d.CurrentRoomState.SelectStateEvent(ctx, roomID, evType, stateKey)
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}
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func (d *Database) GetBulkStateContent(ctx context.Context, roomIDs []string, tuples []gomatrixserverlib.StateKeyTuple, allowWildcards bool) ([]tables.StrippedEvent, error) {
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return d.CurrentRoomState.SelectBulkStateContent(ctx, roomIDs, tuples, allowWildcards)
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}
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func (d *Database) RedactEvent(ctx context.Context, redactedEventID string, redactedBecause gomatrixserverlib.HeaderedEvent) error {
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events, err := d.CurrentRoomState.SelectEventsWithEventIDs(ctx, nil, []string{redactedEventID})
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if err != nil {
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return err
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}
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if len(events) != 1 {
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// this will happen for all non-state events
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return nil
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}
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redactionEvent := redactedBecause.Unwrap()
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eventBeingRedacted := events[0].Unwrap()
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redactedEvent, err := eventutil.RedactEvent(&redactionEvent, &eventBeingRedacted)
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if err != nil {
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return fmt.Errorf("RedactEvent failed: %w", err)
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}
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// replace the state event with a redacted version of itself
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return d.StoreStateEvents(ctx, []gomatrixserverlib.HeaderedEvent{redactedEvent.Headered(redactedBecause.RoomVersion)}, []string{redactedEventID})
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}
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func (d *Database) StoreStateEvents(ctx context.Context, addStateEvents []gomatrixserverlib.HeaderedEvent,
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removeStateEventIDs []string) error {
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return sqlutil.WithTransaction(d.DB, func(txn *sql.Tx) error {
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// remove first, then add, as we do not ever delete state, but do replace state which is a remove followed by an add.
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for _, eventID := range removeStateEventIDs {
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if err := d.CurrentRoomState.DeleteRoomStateByEventID(ctx, txn, eventID); err != nil {
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return err
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}
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}
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for _, event := range addStateEvents {
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if event.StateKey() == nil {
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// ignore non state events
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continue
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}
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contentVal := tables.ExtractContentValue(&event)
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if err := d.CurrentRoomState.UpsertRoomState(ctx, txn, event, contentVal); 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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}
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func (d *Database) GetRoomsByMembership(ctx context.Context, userID, membership string) ([]string, error) {
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return d.CurrentRoomState.SelectRoomIDsWithMembership(ctx, nil, userID, membership)
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}
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func (d *Database) JoinedUsersSetInRooms(ctx context.Context, roomIDs []string) ([]string, error) {
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return d.CurrentRoomState.SelectJoinedUsersSetForRooms(ctx, roomIDs)
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}
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