mirror of
https://github.com/1f349/dendrite.git
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738686ae68
This adds a new admin endpoint `/_dendrite/admin/purgeRoom/{roomID}`. It
completely erases all database entries for a given room ID.
The roomserver will start by clearing all data for that room and then
will generate an output event to notify downstream components (i.e. the
sync API and federation API) to do the same.
It does not currently clear media and it is currently not implemented
for SQLite since it relies on SQL array operations right now.
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Co-authored-by: Till Faelligen <2353100+S7evinK@users.noreply.github.com>
224 lines
14 KiB
Go
224 lines
14 KiB
Go
package tables
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import (
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"context"
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"database/sql"
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"errors"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/tidwall/gjson"
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"github.com/matrix-org/dendrite/roomserver/types"
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)
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var OptimisationNotSupportedError = errors.New("optimisation not supported")
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type EventJSONPair struct {
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EventNID types.EventNID
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EventJSON []byte
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}
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type EventJSON interface {
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// Insert the event JSON. On conflict, replace the event JSON with the new value (for redactions).
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InsertEventJSON(ctx context.Context, tx *sql.Tx, eventNID types.EventNID, eventJSON []byte) error
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BulkSelectEventJSON(ctx context.Context, tx *sql.Tx, eventNIDs []types.EventNID) ([]EventJSONPair, error)
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}
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type EventTypes interface {
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InsertEventTypeNID(ctx context.Context, tx *sql.Tx, eventType string) (types.EventTypeNID, error)
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SelectEventTypeNID(ctx context.Context, tx *sql.Tx, eventType string) (types.EventTypeNID, error)
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BulkSelectEventTypeNID(ctx context.Context, txn *sql.Tx, eventTypes []string) (map[string]types.EventTypeNID, error)
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}
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type EventStateKeys interface {
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InsertEventStateKeyNID(ctx context.Context, txn *sql.Tx, eventStateKey string) (types.EventStateKeyNID, error)
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SelectEventStateKeyNID(ctx context.Context, txn *sql.Tx, eventStateKey string) (types.EventStateKeyNID, error)
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BulkSelectEventStateKeyNID(ctx context.Context, txn *sql.Tx, eventStateKeys []string) (map[string]types.EventStateKeyNID, error)
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BulkSelectEventStateKey(ctx context.Context, txn *sql.Tx, eventStateKeyNIDs []types.EventStateKeyNID) (map[types.EventStateKeyNID]string, error)
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}
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type Events interface {
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InsertEvent(
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ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, eventTypeNID types.EventTypeNID,
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eventStateKeyNID types.EventStateKeyNID, eventID string,
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referenceSHA256 []byte, authEventNIDs []types.EventNID, depth int64, isRejected bool,
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) (types.EventNID, types.StateSnapshotNID, error)
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SelectEvent(ctx context.Context, txn *sql.Tx, eventID string) (types.EventNID, types.StateSnapshotNID, error)
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BulkSelectSnapshotsFromEventIDs(ctx context.Context, txn *sql.Tx, eventIDs []string) (map[types.StateSnapshotNID][]string, error)
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// bulkSelectStateEventByID lookups a list of state events by event ID.
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// If any of the requested events are missing from the database it returns a types.MissingEventError
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BulkSelectStateEventByID(ctx context.Context, txn *sql.Tx, eventIDs []string, excludeRejected bool) ([]types.StateEntry, error)
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BulkSelectStateEventByNID(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID, stateKeyTuples []types.StateKeyTuple) ([]types.StateEntry, error)
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// BulkSelectStateAtEventByID lookups the state at a list of events by event ID.
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// If any of the requested events are missing from the database it returns a types.MissingEventError.
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// If we do not have the state for any of the requested events it returns a types.MissingEventError.
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BulkSelectStateAtEventByID(ctx context.Context, txn *sql.Tx, eventIDs []string) ([]types.StateAtEvent, error)
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UpdateEventState(ctx context.Context, txn *sql.Tx, eventNID types.EventNID, stateNID types.StateSnapshotNID) error
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SelectEventSentToOutput(ctx context.Context, txn *sql.Tx, eventNID types.EventNID) (sentToOutput bool, err error)
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UpdateEventSentToOutput(ctx context.Context, txn *sql.Tx, eventNID types.EventNID) error
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SelectEventID(ctx context.Context, txn *sql.Tx, eventNID types.EventNID) (eventID string, err error)
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BulkSelectStateAtEventAndReference(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID) ([]types.StateAtEventAndReference, error)
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BulkSelectEventReference(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID) ([]gomatrixserverlib.EventReference, error)
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// BulkSelectEventID returns a map from numeric event ID to string event ID.
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BulkSelectEventID(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID) (map[types.EventNID]string, error)
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// BulkSelectEventNIDs returns a map from string event ID to numeric event ID.
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// If an event ID is not in the database then it is omitted from the map.
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BulkSelectEventNID(ctx context.Context, txn *sql.Tx, eventIDs []string) (map[string]types.EventNID, error)
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BulkSelectUnsentEventNID(ctx context.Context, txn *sql.Tx, eventIDs []string) (map[string]types.EventNID, error)
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SelectMaxEventDepth(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID) (int64, error)
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SelectRoomNIDsForEventNIDs(ctx context.Context, txn *sql.Tx, eventNIDs []types.EventNID) (roomNIDs map[types.EventNID]types.RoomNID, err error)
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SelectEventRejected(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, eventID string) (rejected bool, err error)
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}
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type Rooms interface {
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InsertRoomNID(ctx context.Context, txn *sql.Tx, roomID string, roomVersion gomatrixserverlib.RoomVersion) (types.RoomNID, error)
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SelectRoomNID(ctx context.Context, txn *sql.Tx, roomID string) (types.RoomNID, error)
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SelectRoomNIDForUpdate(ctx context.Context, txn *sql.Tx, roomID string) (types.RoomNID, error)
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SelectLatestEventNIDs(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID) ([]types.EventNID, types.StateSnapshotNID, error)
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SelectLatestEventsNIDsForUpdate(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID) ([]types.EventNID, types.EventNID, types.StateSnapshotNID, error)
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UpdateLatestEventNIDs(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, eventNIDs []types.EventNID, lastEventSentNID types.EventNID, stateSnapshotNID types.StateSnapshotNID) error
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SelectRoomVersionsForRoomNIDs(ctx context.Context, txn *sql.Tx, roomNID []types.RoomNID) (map[types.RoomNID]gomatrixserverlib.RoomVersion, error)
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SelectRoomInfo(ctx context.Context, txn *sql.Tx, roomID string) (*types.RoomInfo, error)
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SelectRoomIDsWithEvents(ctx context.Context, txn *sql.Tx) ([]string, error)
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BulkSelectRoomIDs(ctx context.Context, txn *sql.Tx, roomNIDs []types.RoomNID) ([]string, error)
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BulkSelectRoomNIDs(ctx context.Context, txn *sql.Tx, roomIDs []string) ([]types.RoomNID, error)
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}
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type StateSnapshot interface {
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InsertState(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, stateBlockNIDs types.StateBlockNIDs) (stateNID types.StateSnapshotNID, err error)
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BulkSelectStateBlockNIDs(ctx context.Context, txn *sql.Tx, stateNIDs []types.StateSnapshotNID) ([]types.StateBlockNIDList, error)
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// BulkSelectStateForHistoryVisibility is a PostgreSQL-only optimisation for finding
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// which users are in a room faster than having to load the entire room state. In the
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// case of SQLite, this will return tables.OptimisationNotSupportedError.
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BulkSelectStateForHistoryVisibility(ctx context.Context, txn *sql.Tx, stateSnapshotNID types.StateSnapshotNID, domain string) ([]types.EventNID, error)
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}
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type StateBlock interface {
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BulkInsertStateData(ctx context.Context, txn *sql.Tx, entries types.StateEntries) (types.StateBlockNID, error)
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BulkSelectStateBlockEntries(ctx context.Context, txn *sql.Tx, stateBlockNIDs types.StateBlockNIDs) ([][]types.EventNID, error)
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//BulkSelectFilteredStateBlockEntries(ctx context.Context, stateBlockNIDs []types.StateBlockNID, stateKeyTuples []types.StateKeyTuple) ([]types.StateEntryList, error)
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}
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type RoomAliases interface {
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InsertRoomAlias(ctx context.Context, txn *sql.Tx, alias string, roomID string, creatorUserID string) (err error)
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SelectRoomIDFromAlias(ctx context.Context, txn *sql.Tx, alias string) (roomID string, err error)
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SelectAliasesFromRoomID(ctx context.Context, txn *sql.Tx, roomID string) ([]string, error)
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SelectCreatorIDFromAlias(ctx context.Context, txn *sql.Tx, alias string) (creatorID string, err error)
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DeleteRoomAlias(ctx context.Context, txn *sql.Tx, alias string) (err error)
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}
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type PreviousEvents interface {
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InsertPreviousEvent(ctx context.Context, txn *sql.Tx, previousEventID string, previousEventReferenceSHA256 []byte, eventNID types.EventNID) error
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// Check if the event reference exists
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// Returns sql.ErrNoRows if the event reference doesn't exist.
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SelectPreviousEventExists(ctx context.Context, txn *sql.Tx, eventID string, eventReferenceSHA256 []byte) error
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}
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type Invites interface {
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InsertInviteEvent(ctx context.Context, txn *sql.Tx, inviteEventID string, roomNID types.RoomNID, targetUserNID, senderUserNID types.EventStateKeyNID, inviteEventJSON []byte) (bool, error)
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UpdateInviteRetired(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID) ([]string, error)
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// SelectInviteActiveForUserInRoom returns a list of sender state key NIDs and invite event IDs matching those nids.
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SelectInviteActiveForUserInRoom(ctx context.Context, txn *sql.Tx, targetUserNID types.EventStateKeyNID, roomNID types.RoomNID) ([]types.EventStateKeyNID, []string, []byte, error)
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}
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type MembershipState int64
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const (
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MembershipStateLeaveOrBan MembershipState = 1
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MembershipStateInvite MembershipState = 2
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MembershipStateJoin MembershipState = 3
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MembershipStateKnock MembershipState = 4
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)
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type Membership interface {
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InsertMembership(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID, localTarget bool) error
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SelectMembershipForUpdate(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID) (MembershipState, error)
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SelectMembershipFromRoomAndTarget(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID) (types.EventNID, MembershipState, bool, error)
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SelectMembershipsFromRoom(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, localOnly bool) (eventNIDs []types.EventNID, err error)
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SelectMembershipsFromRoomAndMembership(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, membership MembershipState, localOnly bool) (eventNIDs []types.EventNID, err error)
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UpdateMembership(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID, senderUserNID types.EventStateKeyNID, membership MembershipState, eventNID types.EventNID, forgotten bool) (bool, error)
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SelectRoomsWithMembership(ctx context.Context, txn *sql.Tx, userID types.EventStateKeyNID, membershipState MembershipState) ([]types.RoomNID, error)
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// SelectJoinedUsersSetForRooms returns how many times each of the given users appears across the given rooms.
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SelectJoinedUsersSetForRooms(ctx context.Context, txn *sql.Tx, roomNIDs []types.RoomNID, userNIDs []types.EventStateKeyNID, localOnly bool) (map[types.EventStateKeyNID]int, error)
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SelectKnownUsers(ctx context.Context, txn *sql.Tx, userID types.EventStateKeyNID, searchString string, limit int) ([]string, error)
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UpdateForgetMembership(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID, forget bool) error
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SelectLocalServerInRoom(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID) (bool, error)
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SelectServerInRoom(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, serverName gomatrixserverlib.ServerName) (bool, error)
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DeleteMembership(ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, targetUserNID types.EventStateKeyNID) error
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SelectJoinedUsers(ctx context.Context, txn *sql.Tx, targetUserNIDs []types.EventStateKeyNID) ([]types.EventStateKeyNID, error)
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}
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type Published interface {
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UpsertRoomPublished(ctx context.Context, txn *sql.Tx, roomID, appserviceID, networkID string, published bool) (err error)
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SelectPublishedFromRoomID(ctx context.Context, txn *sql.Tx, roomID string) (published bool, err error)
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SelectAllPublishedRooms(ctx context.Context, txn *sql.Tx, networkdID string, published, includeAllNetworks bool) ([]string, error)
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}
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type RedactionInfo struct {
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// whether this redaction is validated (we have both events)
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Validated bool
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// the ID of the event being redacted
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RedactsEventID string
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// the ID of the redaction event
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RedactionEventID string
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}
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type Redactions interface {
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InsertRedaction(ctx context.Context, txn *sql.Tx, info RedactionInfo) error
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// SelectRedactionInfoByRedactionEventID returns the redaction info for the given redaction event ID, or nil if there is no match.
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SelectRedactionInfoByRedactionEventID(ctx context.Context, txn *sql.Tx, redactionEventID string) (*RedactionInfo, error)
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// SelectRedactionInfoByEventBeingRedacted returns the redaction info for the given redacted event ID, or nil if there is no match.
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SelectRedactionInfoByEventBeingRedacted(ctx context.Context, txn *sql.Tx, eventID string) (*RedactionInfo, error)
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// Mark this redaction event as having been validated. This means we have both sides of the redaction and have
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// successfully redacted the event JSON.
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MarkRedactionValidated(ctx context.Context, txn *sql.Tx, redactionEventID string, validated bool) error
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}
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type Purge interface {
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PurgeRoom(
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ctx context.Context, txn *sql.Tx, roomNID types.RoomNID, roomID string,
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) error
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}
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// StrippedEvent represents a stripped event for returning extracted content values.
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type StrippedEvent struct {
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RoomID string
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EventType string
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StateKey string
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ContentValue string
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}
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// ExtractContentValue from the given state event. For example, given an m.room.name event with:
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// content: { name: "Foo" }
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// this returns "Foo".
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func ExtractContentValue(ev *gomatrixserverlib.HeaderedEvent) string {
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content := ev.Content()
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key := ""
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switch ev.Type() {
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case gomatrixserverlib.MRoomCreate:
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key = "creator"
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case gomatrixserverlib.MRoomCanonicalAlias:
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key = "alias"
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case gomatrixserverlib.MRoomHistoryVisibility:
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key = "history_visibility"
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case gomatrixserverlib.MRoomJoinRules:
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key = "join_rule"
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case gomatrixserverlib.MRoomMember:
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key = "membership"
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case gomatrixserverlib.MRoomName:
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key = "name"
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case "m.room.avatar":
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key = "url"
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case "m.room.topic":
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key = "topic"
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case "m.room.guest_access":
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key = "guest_access"
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}
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result := gjson.GetBytes(content, key)
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if !result.Exists() {
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return ""
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}
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// this returns the empty string if this is not a string type
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return result.Str
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}
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