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