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193 lines
14 KiB
Go
193 lines
14 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 storage
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import (
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"context"
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"github.com/matrix-org/gomatrixserverlib"
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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/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/syncapi/storage/shared"
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"github.com/matrix-org/dendrite/syncapi/types"
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userapi "github.com/matrix-org/dendrite/userapi/api"
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)
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type DatabaseTransaction interface {
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sqlutil.Transaction
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SharedUsers
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MaxStreamPositionForPDUs(ctx context.Context) (types.StreamPosition, error)
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MaxStreamPositionForReceipts(ctx context.Context) (types.StreamPosition, error)
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MaxStreamPositionForInvites(ctx context.Context) (types.StreamPosition, error)
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MaxStreamPositionForAccountData(ctx context.Context) (types.StreamPosition, error)
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MaxStreamPositionForSendToDeviceMessages(ctx context.Context) (types.StreamPosition, error)
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MaxStreamPositionForNotificationData(ctx context.Context) (types.StreamPosition, error)
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MaxStreamPositionForPresence(ctx context.Context) (types.StreamPosition, error)
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CurrentState(ctx context.Context, roomID string, stateFilterPart *gomatrixserverlib.StateFilter, excludeEventIDs []string) ([]*gomatrixserverlib.HeaderedEvent, error)
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GetStateDeltasForFullStateSync(ctx context.Context, device *userapi.Device, r types.Range, userID string, stateFilter *gomatrixserverlib.StateFilter) ([]types.StateDelta, []string, error)
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GetStateDeltas(ctx context.Context, device *userapi.Device, r types.Range, userID string, stateFilter *gomatrixserverlib.StateFilter) ([]types.StateDelta, []string, error)
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RoomIDsWithMembership(ctx context.Context, userID string, membership string) ([]string, error)
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MembershipCount(ctx context.Context, roomID, membership string, pos types.StreamPosition) (int, error)
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GetRoomHeroes(ctx context.Context, roomID, userID string, memberships []string) ([]string, error)
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RecentEvents(ctx context.Context, roomID string, r types.Range, eventFilter *gomatrixserverlib.RoomEventFilter, chronologicalOrder bool, onlySyncEvents bool) ([]types.StreamEvent, bool, error)
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GetBackwardTopologyPos(ctx context.Context, events []types.StreamEvent) (types.TopologyToken, error)
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PositionInTopology(ctx context.Context, eventID string) (pos types.StreamPosition, spos types.StreamPosition, err error)
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InviteEventsInRange(ctx context.Context, targetUserID string, r types.Range) (map[string]*gomatrixserverlib.HeaderedEvent, map[string]*gomatrixserverlib.HeaderedEvent, types.StreamPosition, error)
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PeeksInRange(ctx context.Context, userID, deviceID string, r types.Range) (peeks []types.Peek, err error)
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RoomReceiptsAfter(ctx context.Context, roomIDs []string, streamPos types.StreamPosition) (types.StreamPosition, []types.OutputReceiptEvent, error)
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// AllJoinedUsersInRooms returns a map of room ID to a list of all joined user IDs.
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AllJoinedUsersInRooms(ctx context.Context) (map[string][]string, error)
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// AllJoinedUsersInRoom returns a map of room ID to a list of all joined user IDs for a given room.
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AllJoinedUsersInRoom(ctx context.Context, roomIDs []string) (map[string][]string, error)
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// AllPeekingDevicesInRooms returns a map of room ID to a list of all peeking devices.
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AllPeekingDevicesInRooms(ctx context.Context) (map[string][]types.PeekingDevice, error)
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// Events lookups a list of event by their event ID.
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// Returns a list of events matching the requested IDs found in the database.
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// If an event is not found in the database then it will be omitted from the list.
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// Returns an error if there was a problem talking with the database.
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// Does not include any transaction IDs in the returned events.
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Events(ctx context.Context, eventIDs []string) ([]*gomatrixserverlib.HeaderedEvent, error)
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// GetStateEvent returns the Matrix state event of a given type for a given room with a given state key
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// If no event could be found, returns nil
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// If there was an issue during the retrieval, returns an error
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GetStateEvent(ctx context.Context, roomID, evType, stateKey string) (*gomatrixserverlib.HeaderedEvent, error)
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// GetStateEventsForRoom fetches the state events for a given room.
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// Returns an empty slice if no state events could be found for this room.
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// Returns an error if there was an issue with the retrieval.
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GetStateEventsForRoom(ctx context.Context, roomID string, stateFilterPart *gomatrixserverlib.StateFilter) (stateEvents []*gomatrixserverlib.HeaderedEvent, err error)
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// GetAccountDataInRange returns all account data for a given user inserted or
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// updated between two given positions
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// Returns a map following the format data[roomID] = []dataTypes
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// If no data is retrieved, returns an empty map
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// If there was an issue with the retrieval, returns an error
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GetAccountDataInRange(ctx context.Context, userID string, r types.Range, accountDataFilterPart *gomatrixserverlib.EventFilter) (map[string][]string, types.StreamPosition, error)
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// GetEventsInTopologicalRange retrieves all of the events on a given ordering using the given extremities and limit. If backwardsOrdering is true, the most recent event must be first, else last.
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GetEventsInTopologicalRange(ctx context.Context, from, to *types.TopologyToken, roomID string, filter *gomatrixserverlib.RoomEventFilter, backwardOrdering bool) (events []types.StreamEvent, err error)
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// EventPositionInTopology returns the depth and stream position of the given event.
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EventPositionInTopology(ctx context.Context, eventID string) (types.TopologyToken, error)
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// BackwardExtremitiesForRoom returns a map of backwards extremity event ID to a list of its prev_events.
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BackwardExtremitiesForRoom(ctx context.Context, roomID string) (backwardExtremities map[string][]string, err error)
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// MaxTopologicalPosition returns the highest topological position for a given room.
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MaxTopologicalPosition(ctx context.Context, roomID string) (types.TopologyToken, error)
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// StreamEventsToEvents converts streamEvent to Event. If device is non-nil and
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// matches the streamevent.transactionID device then the transaction ID gets
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// added to the unsigned section of the output event.
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StreamEventsToEvents(device *userapi.Device, in []types.StreamEvent) []*gomatrixserverlib.HeaderedEvent
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// SendToDeviceUpdatesForSync returns a list of send-to-device updates. It returns the
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// relevant events within the given ranges for the supplied user ID and device ID.
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SendToDeviceUpdatesForSync(ctx context.Context, userID, deviceID string, from, to types.StreamPosition) (pos types.StreamPosition, events []types.SendToDeviceEvent, err error)
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// GetRoomReceipts gets all receipts for a given roomID
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GetRoomReceipts(ctx context.Context, roomIDs []string, streamPos types.StreamPosition) ([]types.OutputReceiptEvent, error)
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SelectContextEvent(ctx context.Context, roomID, eventID string) (int, gomatrixserverlib.HeaderedEvent, error)
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SelectContextBeforeEvent(ctx context.Context, id int, roomID string, filter *gomatrixserverlib.RoomEventFilter) ([]*gomatrixserverlib.HeaderedEvent, error)
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SelectContextAfterEvent(ctx context.Context, id int, roomID string, filter *gomatrixserverlib.RoomEventFilter) (int, []*gomatrixserverlib.HeaderedEvent, error)
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StreamToTopologicalPosition(ctx context.Context, roomID string, streamPos types.StreamPosition, backwardOrdering bool) (types.TopologyToken, error)
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IgnoresForUser(ctx context.Context, userID string) (*types.IgnoredUsers, error)
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// SelectMembershipForUser returns the membership of the user before and including the given position. If no membership can be found
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// returns "leave", the topological position and no error. If an error occurs, other than sql.ErrNoRows, returns that and an empty
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// string as the membership.
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SelectMembershipForUser(ctx context.Context, roomID, userID string, pos int64) (membership string, topologicalPos int, err error)
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// getUserUnreadNotificationCountsForRooms returns the unread notifications for the given rooms
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GetUserUnreadNotificationCountsForRooms(ctx context.Context, userID string, roomIDs map[string]string) (map[string]*eventutil.NotificationData, error)
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GetPresence(ctx context.Context, userID string) (*types.PresenceInternal, error)
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PresenceAfter(ctx context.Context, after types.StreamPosition, filter gomatrixserverlib.EventFilter) (map[string]*types.PresenceInternal, error)
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}
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type Database interface {
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Presence
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Notifications
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NewDatabaseSnapshot(ctx context.Context) (*shared.DatabaseTransaction, error)
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NewDatabaseTransaction(ctx context.Context) (*shared.DatabaseTransaction, error)
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// Events lookups a list of event by their event ID.
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// Returns a list of events matching the requested IDs found in the database.
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// If an event is not found in the database then it will be omitted from the list.
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// Returns an error if there was a problem talking with the database.
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// Does not include any transaction IDs in the returned events.
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Events(ctx context.Context, eventIDs []string) ([]*gomatrixserverlib.HeaderedEvent, error)
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// WriteEvent into the database. It is not safe to call this function from multiple goroutines, as it would create races
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// when generating the sync stream position for this event. Returns the sync stream position for the inserted event.
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// Returns an error if there was a problem inserting this event.
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WriteEvent(ctx context.Context, ev *gomatrixserverlib.HeaderedEvent, addStateEvents []*gomatrixserverlib.HeaderedEvent,
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addStateEventIDs []string, removeStateEventIDs []string, transactionID *api.TransactionID, excludeFromSync bool,
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historyVisibility gomatrixserverlib.HistoryVisibility,
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) (types.StreamPosition, error)
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// PurgeRoomState completely purges room state from the sync API. This is done when
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// receiving an output event that completely resets the state.
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PurgeRoomState(ctx context.Context, roomID string) error
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// UpsertAccountData keeps track of new or updated account data, by saving the type
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// of the new/updated data, and the user ID and room ID the data is related to (empty)
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// room ID means the data isn't specific to any room)
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// If no data with the given type, user ID and room ID exists in the database,
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// creates a new row, else update the existing one
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// Returns an error if there was an issue with the upsert
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UpsertAccountData(ctx context.Context, userID, roomID, dataType string) (types.StreamPosition, error)
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// AddInviteEvent stores a new invite event for a user.
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// If the invite was successfully stored this returns the stream ID it was stored at.
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// Returns an error if there was a problem communicating with the database.
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AddInviteEvent(ctx context.Context, inviteEvent *gomatrixserverlib.HeaderedEvent) (types.StreamPosition, error)
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// RetireInviteEvent removes an old invite event from the database. Returns the new position of the retired invite.
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// Returns an error if there was a problem communicating with the database.
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RetireInviteEvent(ctx context.Context, inviteEventID string) (types.StreamPosition, error)
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// AddPeek adds a new peek to our DB for a given room by a given user's device.
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// Returns an error if there was a problem communicating with the database.
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AddPeek(ctx context.Context, RoomID, UserID, DeviceID string) (types.StreamPosition, error)
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// DeletePeek removes an existing peek from the database for a given room by a user's device.
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// Returns an error if there was a problem communicating with the database.
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DeletePeek(ctx context.Context, roomID, userID, deviceID string) (sp types.StreamPosition, err error)
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// DeletePeek deletes all peeks for a given room by a given user
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// Returns an error if there was a problem communicating with the database.
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DeletePeeks(ctx context.Context, RoomID, UserID string) (types.StreamPosition, error)
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// StoreNewSendForDeviceMessage stores a new send-to-device event for a user's device.
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StoreNewSendForDeviceMessage(ctx context.Context, userID, deviceID string, event gomatrixserverlib.SendToDeviceEvent) (types.StreamPosition, error)
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// CleanSendToDeviceUpdates removes all send-to-device messages BEFORE the specified
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// from position, preventing the send-to-device table from growing indefinitely.
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CleanSendToDeviceUpdates(ctx context.Context, userID, deviceID string, before types.StreamPosition) (err error)
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// GetFilter looks up the filter associated with a given local user and filter ID
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// and populates the target filter. Otherwise returns an error if no such filter exists
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// or if there was an error talking to the database.
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GetFilter(ctx context.Context, target *gomatrixserverlib.Filter, localpart string, filterID string) error
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// PutFilter puts the passed filter into the database.
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// Returns the filterID as a string. Otherwise returns an error if something
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// goes wrong.
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PutFilter(ctx context.Context, localpart string, filter *gomatrixserverlib.Filter) (string, error)
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// RedactEvent wipes an event in the database and sets the unsigned.redacted_because key to the redaction event
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RedactEvent(ctx context.Context, redactedEventID string, redactedBecause *gomatrixserverlib.HeaderedEvent) error
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// StoreReceipt stores new receipt events
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StoreReceipt(ctx context.Context, roomId, receiptType, userId, eventId string, timestamp gomatrixserverlib.Timestamp) (pos types.StreamPosition, err error)
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UpdateIgnoresForUser(ctx context.Context, userID string, ignores *types.IgnoredUsers) error
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ReIndex(ctx context.Context, limit, afterID int64) (map[int64]gomatrixserverlib.HeaderedEvent, error)
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}
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type Presence interface {
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GetPresence(ctx context.Context, userID string) (*types.PresenceInternal, error)
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UpdatePresence(ctx context.Context, userID string, presence types.Presence, statusMsg *string, lastActiveTS gomatrixserverlib.Timestamp, fromSync bool) (types.StreamPosition, error)
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}
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type SharedUsers interface {
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// SharedUsers returns a subset of otherUserIDs that share a room with userID.
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SharedUsers(ctx context.Context, userID string, otherUserIDs []string) ([]string, error)
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}
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type Notifications interface {
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// UpsertRoomUnreadNotificationCounts updates the notification statistics about a (user, room) key.
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UpsertRoomUnreadNotificationCounts(ctx context.Context, userID, roomID string, notificationCount, highlightCount int) (types.StreamPosition, error)
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}
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