mirror of
https://github.com/matrix-org/dendrite
synced 2024-09-08 20:25:36 +02:00
Otherwise the sync API key change consumer wastes a lot of time trying to wake up the notifiers for non-local users.
957 lines
29 KiB
Go
957 lines
29 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 query
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import (
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"context"
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"database/sql"
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"encoding/json"
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"errors"
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"fmt"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"github.com/sirupsen/logrus"
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"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
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"github.com/matrix-org/dendrite/internal/caching"
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"github.com/matrix-org/dendrite/roomserver/acls"
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"github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/roomserver/internal/helpers"
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"github.com/matrix-org/dendrite/roomserver/state"
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"github.com/matrix-org/dendrite/roomserver/storage"
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"github.com/matrix-org/dendrite/roomserver/types"
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"github.com/matrix-org/dendrite/roomserver/version"
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)
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type Queryer struct {
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DB storage.Database
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Cache caching.RoomServerCaches
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ServerName gomatrixserverlib.ServerName
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ServerACLs *acls.ServerACLs
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}
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// QueryLatestEventsAndState implements api.RoomserverInternalAPI
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func (r *Queryer) QueryLatestEventsAndState(
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ctx context.Context,
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request *api.QueryLatestEventsAndStateRequest,
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response *api.QueryLatestEventsAndStateResponse,
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) error {
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return helpers.QueryLatestEventsAndState(ctx, r.DB, request, response)
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}
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// QueryStateAfterEvents implements api.RoomserverInternalAPI
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func (r *Queryer) QueryStateAfterEvents(
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ctx context.Context,
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request *api.QueryStateAfterEventsRequest,
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response *api.QueryStateAfterEventsResponse,
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) error {
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info, err := r.DB.RoomInfo(ctx, request.RoomID)
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if err != nil {
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return err
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}
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if info == nil || info.IsStub() {
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return nil
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}
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roomState := state.NewStateResolution(r.DB, info)
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response.RoomExists = true
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response.RoomVersion = info.RoomVersion
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prevStates, err := r.DB.StateAtEventIDs(ctx, request.PrevEventIDs)
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if err != nil {
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if _, ok := err.(types.MissingEventError); ok {
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return nil
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}
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return err
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}
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response.PrevEventsExist = true
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var stateEntries []types.StateEntry
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if len(request.StateToFetch) == 0 {
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// Look up all of the current room state.
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stateEntries, err = roomState.LoadCombinedStateAfterEvents(
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ctx, prevStates,
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)
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} else {
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// Look up the current state for the requested tuples.
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stateEntries, err = roomState.LoadStateAfterEventsForStringTuples(
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ctx, prevStates, request.StateToFetch,
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)
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}
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if err != nil {
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if _, ok := err.(types.MissingEventError); ok {
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return nil
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}
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if _, ok := err.(types.MissingStateError); ok {
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return nil
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}
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return err
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}
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stateEvents, err := helpers.LoadStateEvents(ctx, r.DB, stateEntries)
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if err != nil {
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return err
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}
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if len(request.PrevEventIDs) > 1 {
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var authEventIDs []string
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for _, e := range stateEvents {
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authEventIDs = append(authEventIDs, e.AuthEventIDs()...)
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}
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authEventIDs = util.UniqueStrings(authEventIDs)
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authEvents, err := GetAuthChain(ctx, r.DB.EventsFromIDs, authEventIDs)
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if err != nil {
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return fmt.Errorf("getAuthChain: %w", err)
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}
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stateEvents, err = gomatrixserverlib.ResolveConflicts(info.RoomVersion, stateEvents, authEvents)
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if err != nil {
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return fmt.Errorf("state.ResolveConflictsAdhoc: %w", err)
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}
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}
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for _, event := range stateEvents {
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response.StateEvents = append(response.StateEvents, event.Headered(info.RoomVersion))
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}
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return nil
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}
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// QueryEventsByID implements api.RoomserverInternalAPI
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func (r *Queryer) QueryEventsByID(
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ctx context.Context,
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request *api.QueryEventsByIDRequest,
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response *api.QueryEventsByIDResponse,
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) error {
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eventNIDMap, err := r.DB.EventNIDs(ctx, request.EventIDs)
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if err != nil {
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return err
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}
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var eventNIDs []types.EventNID
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for _, nid := range eventNIDMap {
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eventNIDs = append(eventNIDs, nid)
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}
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events, err := helpers.LoadEvents(ctx, r.DB, eventNIDs)
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if err != nil {
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return err
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}
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for _, event := range events {
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roomVersion, verr := r.roomVersion(event.RoomID())
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if verr != nil {
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return verr
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}
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response.Events = append(response.Events, event.Headered(roomVersion))
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}
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return nil
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}
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// QueryMembershipForUser implements api.RoomserverInternalAPI
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func (r *Queryer) QueryMembershipForUser(
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ctx context.Context,
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request *api.QueryMembershipForUserRequest,
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response *api.QueryMembershipForUserResponse,
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) error {
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info, err := r.DB.RoomInfo(ctx, request.RoomID)
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if err != nil {
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return err
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}
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if info == nil {
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response.RoomExists = false
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return nil
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}
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response.RoomExists = true
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membershipEventNID, stillInRoom, isRoomforgotten, err := r.DB.GetMembership(ctx, info.RoomNID, request.UserID)
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if err != nil {
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return err
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}
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response.IsRoomForgotten = isRoomforgotten
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if membershipEventNID == 0 {
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response.HasBeenInRoom = false
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return nil
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}
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response.IsInRoom = stillInRoom
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response.HasBeenInRoom = true
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evs, err := r.DB.Events(ctx, []types.EventNID{membershipEventNID})
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if err != nil {
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return err
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}
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if len(evs) != 1 {
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return fmt.Errorf("failed to load membership event for event NID %d", membershipEventNID)
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}
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response.EventID = evs[0].EventID()
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response.Membership, err = evs[0].Membership()
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return err
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}
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// QueryMembershipAtEvent returns the known memberships at a given event.
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// If the state before an event is not known, an empty list will be returned
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// for that event instead.
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func (r *Queryer) QueryMembershipAtEvent(
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ctx context.Context,
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request *api.QueryMembershipAtEventRequest,
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response *api.QueryMembershipAtEventResponse,
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) error {
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response.Memberships = make(map[string][]*gomatrixserverlib.HeaderedEvent)
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info, err := r.DB.RoomInfo(ctx, request.RoomID)
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if err != nil {
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return fmt.Errorf("unable to get roomInfo: %w", err)
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}
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if info == nil {
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return fmt.Errorf("no roomInfo found")
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}
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// get the users stateKeyNID
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stateKeyNIDs, err := r.DB.EventStateKeyNIDs(ctx, []string{request.UserID})
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if err != nil {
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return fmt.Errorf("unable to get stateKeyNIDs for %s: %w", request.UserID, err)
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}
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if _, ok := stateKeyNIDs[request.UserID]; !ok {
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return fmt.Errorf("requested stateKeyNID for %s was not found", request.UserID)
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}
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stateEntries, err := helpers.MembershipAtEvent(ctx, r.DB, info, request.EventIDs, stateKeyNIDs[request.UserID])
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if err != nil {
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return fmt.Errorf("unable to get state before event: %w", err)
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}
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for _, eventID := range request.EventIDs {
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stateEntry, ok := stateEntries[eventID]
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if !ok {
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response.Memberships[eventID] = []*gomatrixserverlib.HeaderedEvent{}
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continue
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}
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memberships, err := helpers.GetMembershipsAtState(ctx, r.DB, stateEntry, false)
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if err != nil {
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return fmt.Errorf("unable to get memberships at state: %w", err)
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}
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res := make([]*gomatrixserverlib.HeaderedEvent, 0, len(memberships))
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for i := range memberships {
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ev := memberships[i]
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if ev.Type() == gomatrixserverlib.MRoomMember && ev.StateKeyEquals(request.UserID) {
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res = append(res, ev.Headered(info.RoomVersion))
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}
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}
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response.Memberships[eventID] = res
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}
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return nil
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}
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// QueryMembershipsForRoom implements api.RoomserverInternalAPI
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func (r *Queryer) QueryMembershipsForRoom(
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ctx context.Context,
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request *api.QueryMembershipsForRoomRequest,
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response *api.QueryMembershipsForRoomResponse,
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) error {
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info, err := r.DB.RoomInfo(ctx, request.RoomID)
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if err != nil {
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return err
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}
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if info == nil {
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return nil
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}
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// If no sender is specified then we will just return the entire
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// set of memberships for the room, regardless of whether a specific
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// user is allowed to see them or not.
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if request.Sender == "" {
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var events []types.Event
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var eventNIDs []types.EventNID
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eventNIDs, err = r.DB.GetMembershipEventNIDsForRoom(ctx, info.RoomNID, request.JoinedOnly, request.LocalOnly)
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if err != nil {
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if err == sql.ErrNoRows {
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return nil
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}
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return fmt.Errorf("r.DB.GetMembershipEventNIDsForRoom: %w", err)
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}
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events, err = r.DB.Events(ctx, eventNIDs)
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if err != nil {
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return fmt.Errorf("r.DB.Events: %w", err)
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}
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for _, event := range events {
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clientEvent := gomatrixserverlib.ToClientEvent(event.Event, gomatrixserverlib.FormatAll)
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response.JoinEvents = append(response.JoinEvents, clientEvent)
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}
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return nil
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}
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membershipEventNID, stillInRoom, isRoomforgotten, err := r.DB.GetMembership(ctx, info.RoomNID, request.Sender)
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if err != nil {
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return err
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}
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response.IsRoomForgotten = isRoomforgotten
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if membershipEventNID == 0 {
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response.HasBeenInRoom = false
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response.JoinEvents = nil
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return nil
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}
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response.HasBeenInRoom = true
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response.JoinEvents = []gomatrixserverlib.ClientEvent{}
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var events []types.Event
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var stateEntries []types.StateEntry
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if stillInRoom {
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var eventNIDs []types.EventNID
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eventNIDs, err = r.DB.GetMembershipEventNIDsForRoom(ctx, info.RoomNID, request.JoinedOnly, false)
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if err != nil {
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if err == sql.ErrNoRows {
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return nil
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}
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return err
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}
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events, err = r.DB.Events(ctx, eventNIDs)
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} else {
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stateEntries, err = helpers.StateBeforeEvent(ctx, r.DB, info, membershipEventNID)
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if err != nil {
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logrus.WithField("membership_event_nid", membershipEventNID).WithError(err).Error("failed to load state before event")
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return err
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}
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events, err = helpers.GetMembershipsAtState(ctx, r.DB, stateEntries, request.JoinedOnly)
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}
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if err != nil {
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return err
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}
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for _, event := range events {
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clientEvent := gomatrixserverlib.ToClientEvent(event.Event, gomatrixserverlib.FormatAll)
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response.JoinEvents = append(response.JoinEvents, clientEvent)
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}
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return nil
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}
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// QueryServerJoinedToRoom implements api.RoomserverInternalAPI
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func (r *Queryer) QueryServerJoinedToRoom(
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ctx context.Context,
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request *api.QueryServerJoinedToRoomRequest,
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response *api.QueryServerJoinedToRoomResponse,
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) error {
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info, err := r.DB.RoomInfo(ctx, request.RoomID)
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if err != nil {
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return fmt.Errorf("r.DB.RoomInfo: %w", err)
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}
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if info == nil || info.IsStub() {
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return nil
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}
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response.RoomExists = true
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if request.ServerName == r.ServerName || request.ServerName == "" {
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response.IsInRoom, err = r.DB.GetLocalServerInRoom(ctx, info.RoomNID)
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if err != nil {
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return fmt.Errorf("r.DB.GetLocalServerInRoom: %w", err)
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}
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} else {
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response.IsInRoom, err = r.DB.GetServerInRoom(ctx, info.RoomNID, request.ServerName)
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if err != nil {
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return fmt.Errorf("r.DB.GetServerInRoom: %w", err)
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}
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}
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return nil
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}
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// QueryServerAllowedToSeeEvent implements api.RoomserverInternalAPI
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func (r *Queryer) QueryServerAllowedToSeeEvent(
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ctx context.Context,
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request *api.QueryServerAllowedToSeeEventRequest,
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response *api.QueryServerAllowedToSeeEventResponse,
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) (err error) {
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events, err := r.DB.EventsFromIDs(ctx, []string{request.EventID})
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if err != nil {
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return
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}
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if len(events) == 0 {
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response.AllowedToSeeEvent = false // event doesn't exist so not allowed to see
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return
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}
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roomID := events[0].RoomID()
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inRoomReq := &api.QueryServerJoinedToRoomRequest{
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RoomID: roomID,
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ServerName: request.ServerName,
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}
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inRoomRes := &api.QueryServerJoinedToRoomResponse{}
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if err = r.QueryServerJoinedToRoom(ctx, inRoomReq, inRoomRes); err != nil {
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return fmt.Errorf("r.Queryer.QueryServerJoinedToRoom: %w", err)
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}
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info, err := r.DB.RoomInfo(ctx, roomID)
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if err != nil {
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return err
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}
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if info == nil || info.IsStub() {
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return nil
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}
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response.AllowedToSeeEvent, err = helpers.CheckServerAllowedToSeeEvent(
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ctx, r.DB, info, request.EventID, request.ServerName, inRoomRes.IsInRoom,
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)
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return
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}
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// QueryMissingEvents implements api.RoomserverInternalAPI
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func (r *Queryer) QueryMissingEvents(
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ctx context.Context,
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request *api.QueryMissingEventsRequest,
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response *api.QueryMissingEventsResponse,
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) error {
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var front []string
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eventsToFilter := make(map[string]bool, len(request.LatestEvents))
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visited := make(map[string]bool, request.Limit) // request.Limit acts as a hint to size.
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for _, id := range request.EarliestEvents {
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visited[id] = true
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}
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for _, id := range request.LatestEvents {
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if !visited[id] {
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front = append(front, id)
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eventsToFilter[id] = true
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}
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}
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events, err := r.DB.EventsFromIDs(ctx, front)
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if err != nil {
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return err
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}
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if len(events) == 0 {
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return nil // we are missing the events being asked to search from, give up.
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}
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info, err := r.DB.RoomInfo(ctx, events[0].RoomID())
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if err != nil {
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return err
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}
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if info == nil || info.IsStub() {
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return fmt.Errorf("missing RoomInfo for room %s", events[0].RoomID())
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}
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resultNIDs, err := helpers.ScanEventTree(ctx, r.DB, info, front, visited, request.Limit, request.ServerName)
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if err != nil {
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return err
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}
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loadedEvents, err := helpers.LoadEvents(ctx, r.DB, resultNIDs)
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if err != nil {
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return err
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}
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response.Events = make([]*gomatrixserverlib.HeaderedEvent, 0, len(loadedEvents)-len(eventsToFilter))
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for _, event := range loadedEvents {
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if !eventsToFilter[event.EventID()] {
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roomVersion, verr := r.roomVersion(event.RoomID())
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if verr != nil {
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return verr
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}
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response.Events = append(response.Events, event.Headered(roomVersion))
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}
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}
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return err
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}
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// QueryStateAndAuthChain implements api.RoomserverInternalAPI
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func (r *Queryer) QueryStateAndAuthChain(
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ctx context.Context,
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request *api.QueryStateAndAuthChainRequest,
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response *api.QueryStateAndAuthChainResponse,
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) error {
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info, err := r.DB.RoomInfo(ctx, request.RoomID)
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if err != nil {
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return err
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}
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if info == nil || info.IsStub() {
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return nil
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}
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response.RoomExists = true
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response.RoomVersion = info.RoomVersion
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// handle this entirely separately to the other case so we don't have to pull out
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// the entire current state of the room
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// TODO: this probably means it should be a different query operation...
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if request.OnlyFetchAuthChain {
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var authEvents []*gomatrixserverlib.Event
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authEvents, err = GetAuthChain(ctx, r.DB.EventsFromIDs, request.AuthEventIDs)
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if err != nil {
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return err
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}
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for _, event := range authEvents {
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response.AuthChainEvents = append(response.AuthChainEvents, event.Headered(info.RoomVersion))
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}
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return nil
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}
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var stateEvents []*gomatrixserverlib.Event
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stateEvents, rejected, stateMissing, err := r.loadStateAtEventIDs(ctx, info, request.PrevEventIDs)
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if err != nil {
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return err
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}
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response.StateKnown = !stateMissing
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response.IsRejected = rejected
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response.PrevEventsExist = true
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|
|
// add the auth event IDs for the current state events too
|
|
var authEventIDs []string
|
|
authEventIDs = append(authEventIDs, request.AuthEventIDs...)
|
|
for _, se := range stateEvents {
|
|
authEventIDs = append(authEventIDs, se.AuthEventIDs()...)
|
|
}
|
|
authEventIDs = util.UniqueStrings(authEventIDs) // de-dupe
|
|
|
|
authEvents, err := GetAuthChain(ctx, r.DB.EventsFromIDs, authEventIDs)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if request.ResolveState {
|
|
if stateEvents, err = gomatrixserverlib.ResolveConflicts(
|
|
info.RoomVersion, stateEvents, authEvents,
|
|
); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
for _, event := range stateEvents {
|
|
response.StateEvents = append(response.StateEvents, event.Headered(info.RoomVersion))
|
|
}
|
|
|
|
for _, event := range authEvents {
|
|
response.AuthChainEvents = append(response.AuthChainEvents, event.Headered(info.RoomVersion))
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
// first bool: is rejected, second bool: state missing
|
|
func (r *Queryer) loadStateAtEventIDs(ctx context.Context, roomInfo *types.RoomInfo, eventIDs []string) ([]*gomatrixserverlib.Event, bool, bool, error) {
|
|
roomState := state.NewStateResolution(r.DB, roomInfo)
|
|
prevStates, err := r.DB.StateAtEventIDs(ctx, eventIDs)
|
|
if err != nil {
|
|
switch err.(type) {
|
|
case types.MissingEventError:
|
|
return nil, false, true, nil
|
|
case types.MissingStateError:
|
|
return nil, false, true, nil
|
|
default:
|
|
return nil, false, false, err
|
|
}
|
|
}
|
|
// Currently only used on /state and /state_ids
|
|
rejected := false
|
|
for i := range prevStates {
|
|
if prevStates[i].IsRejected {
|
|
rejected = true
|
|
break
|
|
}
|
|
}
|
|
|
|
// Look up the currrent state for the requested tuples.
|
|
stateEntries, err := roomState.LoadCombinedStateAfterEvents(
|
|
ctx, prevStates,
|
|
)
|
|
if err != nil {
|
|
return nil, rejected, false, err
|
|
}
|
|
|
|
events, err := helpers.LoadStateEvents(ctx, r.DB, stateEntries)
|
|
return events, rejected, false, err
|
|
}
|
|
|
|
type eventsFromIDs func(context.Context, []string) ([]types.Event, error)
|
|
|
|
// GetAuthChain fetches the auth chain for the given auth events. An auth chain
|
|
// is the list of all events that are referenced in the auth_events section, and
|
|
// all their auth_events, recursively. The returned set of events contain the
|
|
// given events. Will *not* error if we don't have all auth events.
|
|
func GetAuthChain(
|
|
ctx context.Context, fn eventsFromIDs, authEventIDs []string,
|
|
) ([]*gomatrixserverlib.Event, error) {
|
|
// List of event IDs to fetch. On each pass, these events will be requested
|
|
// from the database and the `eventsToFetch` will be updated with any new
|
|
// events that we have learned about and need to find. When `eventsToFetch`
|
|
// is eventually empty, we should have reached the end of the chain.
|
|
eventsToFetch := authEventIDs
|
|
authEventsMap := make(map[string]*gomatrixserverlib.Event)
|
|
|
|
for len(eventsToFetch) > 0 {
|
|
// Try to retrieve the events from the database.
|
|
events, err := fn(ctx, eventsToFetch)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// We've now fetched these events so clear out `eventsToFetch`. Soon we may
|
|
// add newly discovered events to this for the next pass.
|
|
eventsToFetch = eventsToFetch[:0]
|
|
|
|
for _, event := range events {
|
|
// Store the event in the event map - this prevents us from requesting it
|
|
// from the database again.
|
|
authEventsMap[event.EventID()] = event.Event
|
|
|
|
// Extract all of the auth events from the newly obtained event. If we
|
|
// don't already have a record of the event, record it in the list of
|
|
// events we want to request for the next pass.
|
|
for _, authEvent := range event.AuthEvents() {
|
|
if _, ok := authEventsMap[authEvent.EventID]; !ok {
|
|
eventsToFetch = append(eventsToFetch, authEvent.EventID)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// We've now retrieved all of the events we can. Flatten them down into an
|
|
// array and return them.
|
|
var authEvents []*gomatrixserverlib.Event
|
|
for _, event := range authEventsMap {
|
|
authEvents = append(authEvents, event)
|
|
}
|
|
|
|
return authEvents, nil
|
|
}
|
|
|
|
// QueryRoomVersionCapabilities implements api.RoomserverInternalAPI
|
|
func (r *Queryer) QueryRoomVersionCapabilities(
|
|
ctx context.Context,
|
|
request *api.QueryRoomVersionCapabilitiesRequest,
|
|
response *api.QueryRoomVersionCapabilitiesResponse,
|
|
) error {
|
|
response.DefaultRoomVersion = version.DefaultRoomVersion()
|
|
response.AvailableRoomVersions = make(map[gomatrixserverlib.RoomVersion]string)
|
|
for v, desc := range version.SupportedRoomVersions() {
|
|
if desc.Stable {
|
|
response.AvailableRoomVersions[v] = "stable"
|
|
} else {
|
|
response.AvailableRoomVersions[v] = "unstable"
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// QueryRoomVersionCapabilities implements api.RoomserverInternalAPI
|
|
func (r *Queryer) QueryRoomVersionForRoom(
|
|
ctx context.Context,
|
|
request *api.QueryRoomVersionForRoomRequest,
|
|
response *api.QueryRoomVersionForRoomResponse,
|
|
) error {
|
|
if roomVersion, ok := r.Cache.GetRoomVersion(request.RoomID); ok {
|
|
response.RoomVersion = roomVersion
|
|
return nil
|
|
}
|
|
|
|
info, err := r.DB.RoomInfo(ctx, request.RoomID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if info == nil {
|
|
return fmt.Errorf("QueryRoomVersionForRoom: missing room info for room %s", request.RoomID)
|
|
}
|
|
response.RoomVersion = info.RoomVersion
|
|
r.Cache.StoreRoomVersion(request.RoomID, response.RoomVersion)
|
|
return nil
|
|
}
|
|
|
|
func (r *Queryer) roomVersion(roomID string) (gomatrixserverlib.RoomVersion, error) {
|
|
var res api.QueryRoomVersionForRoomResponse
|
|
err := r.QueryRoomVersionForRoom(context.Background(), &api.QueryRoomVersionForRoomRequest{
|
|
RoomID: roomID,
|
|
}, &res)
|
|
return res.RoomVersion, err
|
|
}
|
|
|
|
func (r *Queryer) QueryPublishedRooms(
|
|
ctx context.Context,
|
|
req *api.QueryPublishedRoomsRequest,
|
|
res *api.QueryPublishedRoomsResponse,
|
|
) error {
|
|
if req.RoomID != "" {
|
|
visible, err := r.DB.GetPublishedRoom(ctx, req.RoomID)
|
|
if err == nil && visible {
|
|
res.RoomIDs = []string{req.RoomID}
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
rooms, err := r.DB.GetPublishedRooms(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
res.RoomIDs = rooms
|
|
return nil
|
|
}
|
|
|
|
func (r *Queryer) QueryCurrentState(ctx context.Context, req *api.QueryCurrentStateRequest, res *api.QueryCurrentStateResponse) error {
|
|
res.StateEvents = make(map[gomatrixserverlib.StateKeyTuple]*gomatrixserverlib.HeaderedEvent)
|
|
for _, tuple := range req.StateTuples {
|
|
if tuple.StateKey == "*" && req.AllowWildcards {
|
|
events, err := r.DB.GetStateEventsWithEventType(ctx, req.RoomID, tuple.EventType)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, e := range events {
|
|
res.StateEvents[gomatrixserverlib.StateKeyTuple{
|
|
EventType: e.Type(),
|
|
StateKey: *e.StateKey(),
|
|
}] = e
|
|
}
|
|
} else {
|
|
ev, err := r.DB.GetStateEvent(ctx, req.RoomID, tuple.EventType, tuple.StateKey)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if ev != nil {
|
|
res.StateEvents[tuple] = ev
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (r *Queryer) QueryRoomsForUser(ctx context.Context, req *api.QueryRoomsForUserRequest, res *api.QueryRoomsForUserResponse) error {
|
|
roomIDs, err := r.DB.GetRoomsByMembership(ctx, req.UserID, req.WantMembership)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
res.RoomIDs = roomIDs
|
|
return nil
|
|
}
|
|
|
|
func (r *Queryer) QueryKnownUsers(ctx context.Context, req *api.QueryKnownUsersRequest, res *api.QueryKnownUsersResponse) error {
|
|
users, err := r.DB.GetKnownUsers(ctx, req.UserID, req.SearchString, req.Limit)
|
|
if err != nil && err != sql.ErrNoRows {
|
|
return err
|
|
}
|
|
for _, user := range users {
|
|
res.Users = append(res.Users, authtypes.FullyQualifiedProfile{
|
|
UserID: user,
|
|
})
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (r *Queryer) QueryBulkStateContent(ctx context.Context, req *api.QueryBulkStateContentRequest, res *api.QueryBulkStateContentResponse) error {
|
|
events, err := r.DB.GetBulkStateContent(ctx, req.RoomIDs, req.StateTuples, req.AllowWildcards)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
res.Rooms = make(map[string]map[gomatrixserverlib.StateKeyTuple]string)
|
|
for _, ev := range events {
|
|
if res.Rooms[ev.RoomID] == nil {
|
|
res.Rooms[ev.RoomID] = make(map[gomatrixserverlib.StateKeyTuple]string)
|
|
}
|
|
room := res.Rooms[ev.RoomID]
|
|
room[gomatrixserverlib.StateKeyTuple{
|
|
EventType: ev.EventType,
|
|
StateKey: ev.StateKey,
|
|
}] = ev.ContentValue
|
|
res.Rooms[ev.RoomID] = room
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (r *Queryer) QuerySharedUsers(ctx context.Context, req *api.QuerySharedUsersRequest, res *api.QuerySharedUsersResponse) error {
|
|
roomIDs, err := r.DB.GetRoomsByMembership(ctx, req.UserID, "join")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
roomIDs = append(roomIDs, req.IncludeRoomIDs...)
|
|
excludeMap := make(map[string]bool)
|
|
for _, roomID := range req.ExcludeRoomIDs {
|
|
excludeMap[roomID] = true
|
|
}
|
|
// filter out excluded rooms
|
|
j := 0
|
|
for i := range roomIDs {
|
|
// move elements to include to the beginning of the slice
|
|
// then trim elements on the right
|
|
if !excludeMap[roomIDs[i]] {
|
|
roomIDs[j] = roomIDs[i]
|
|
j++
|
|
}
|
|
}
|
|
roomIDs = roomIDs[:j]
|
|
|
|
users, err := r.DB.JoinedUsersSetInRooms(ctx, roomIDs, req.OtherUserIDs, req.LocalOnly)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
res.UserIDsToCount = users
|
|
return nil
|
|
}
|
|
|
|
func (r *Queryer) QueryServerBannedFromRoom(ctx context.Context, req *api.QueryServerBannedFromRoomRequest, res *api.QueryServerBannedFromRoomResponse) error {
|
|
if r.ServerACLs == nil {
|
|
return errors.New("no server ACL tracking")
|
|
}
|
|
res.Banned = r.ServerACLs.IsServerBannedFromRoom(req.ServerName, req.RoomID)
|
|
return nil
|
|
}
|
|
|
|
func (r *Queryer) QueryAuthChain(ctx context.Context, req *api.QueryAuthChainRequest, res *api.QueryAuthChainResponse) error {
|
|
chain, err := GetAuthChain(ctx, r.DB.EventsFromIDs, req.EventIDs)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
hchain := make([]*gomatrixserverlib.HeaderedEvent, len(chain))
|
|
for i := range chain {
|
|
hchain[i] = chain[i].Headered(chain[i].Version())
|
|
}
|
|
res.AuthChain = hchain
|
|
return nil
|
|
}
|
|
|
|
// nolint:gocyclo
|
|
func (r *Queryer) QueryRestrictedJoinAllowed(ctx context.Context, req *api.QueryRestrictedJoinAllowedRequest, res *api.QueryRestrictedJoinAllowedResponse) error {
|
|
// Look up if we know anything about the room. If it doesn't exist
|
|
// or is a stub entry then we can't do anything.
|
|
roomInfo, err := r.DB.RoomInfo(ctx, req.RoomID)
|
|
if err != nil {
|
|
return fmt.Errorf("r.DB.RoomInfo: %w", err)
|
|
}
|
|
if roomInfo == nil || roomInfo.IsStub() {
|
|
return nil // fmt.Errorf("room %q doesn't exist or is stub room", req.RoomID)
|
|
}
|
|
// If the room version doesn't allow restricted joins then don't
|
|
// try to process any further.
|
|
allowRestrictedJoins, err := roomInfo.RoomVersion.MayAllowRestrictedJoinsInEventAuth()
|
|
if err != nil {
|
|
return fmt.Errorf("roomInfo.RoomVersion.AllowRestrictedJoinsInEventAuth: %w", err)
|
|
} else if !allowRestrictedJoins {
|
|
return nil
|
|
}
|
|
// Start off by populating the "resident" flag in the response. If we
|
|
// come across any rooms in the request that are missing, we will unset
|
|
// the flag.
|
|
res.Resident = true
|
|
// Get the join rules to work out if the join rule is "restricted".
|
|
joinRulesEvent, err := r.DB.GetStateEvent(ctx, req.RoomID, gomatrixserverlib.MRoomJoinRules, "")
|
|
if err != nil {
|
|
return fmt.Errorf("r.DB.GetStateEvent: %w", err)
|
|
}
|
|
if joinRulesEvent == nil {
|
|
return nil
|
|
}
|
|
var joinRules gomatrixserverlib.JoinRuleContent
|
|
if err = json.Unmarshal(joinRulesEvent.Content(), &joinRules); err != nil {
|
|
return fmt.Errorf("json.Unmarshal: %w", err)
|
|
}
|
|
// If the join rule isn't "restricted" then there's nothing more to do.
|
|
res.Restricted = joinRules.JoinRule == gomatrixserverlib.Restricted
|
|
if !res.Restricted {
|
|
return nil
|
|
}
|
|
// If the user is already invited to the room then the join is allowed
|
|
// but we don't specify an authorised via user, since the event auth
|
|
// will allow the join anyway.
|
|
var pending bool
|
|
if pending, _, _, err = helpers.IsInvitePending(ctx, r.DB, req.RoomID, req.UserID); err != nil {
|
|
return fmt.Errorf("helpers.IsInvitePending: %w", err)
|
|
} else if pending {
|
|
res.Allowed = true
|
|
return nil
|
|
}
|
|
// We need to get the power levels content so that we can determine which
|
|
// users in the room are entitled to issue invites. We need to use one of
|
|
// these users as the authorising user.
|
|
powerLevelsEvent, err := r.DB.GetStateEvent(ctx, req.RoomID, gomatrixserverlib.MRoomPowerLevels, "")
|
|
if err != nil {
|
|
return fmt.Errorf("r.DB.GetStateEvent: %w", err)
|
|
}
|
|
var powerLevels gomatrixserverlib.PowerLevelContent
|
|
if err = json.Unmarshal(powerLevelsEvent.Content(), &powerLevels); err != nil {
|
|
return fmt.Errorf("json.Unmarshal: %w", err)
|
|
}
|
|
// Step through the join rules and see if the user matches any of them.
|
|
for _, rule := range joinRules.Allow {
|
|
// We only understand "m.room_membership" rules at this point in
|
|
// time, so skip any rule that doesn't match those.
|
|
if rule.Type != gomatrixserverlib.MRoomMembership {
|
|
continue
|
|
}
|
|
// See if the room exists. If it doesn't exist or if it's a stub
|
|
// room entry then we can't check memberships.
|
|
targetRoomInfo, err := r.DB.RoomInfo(ctx, rule.RoomID)
|
|
if err != nil || targetRoomInfo == nil || targetRoomInfo.IsStub() {
|
|
res.Resident = false
|
|
continue
|
|
}
|
|
// First of all work out if *we* are still in the room, otherwise
|
|
// it's possible that the memberships will be out of date.
|
|
isIn, err := r.DB.GetLocalServerInRoom(ctx, targetRoomInfo.RoomNID)
|
|
if err != nil || !isIn {
|
|
// If we aren't in the room, we can no longer tell if the room
|
|
// memberships are up-to-date.
|
|
res.Resident = false
|
|
continue
|
|
}
|
|
// At this point we're happy that we are in the room, so now let's
|
|
// see if the target user is in the room.
|
|
_, isIn, _, err = r.DB.GetMembership(ctx, targetRoomInfo.RoomNID, req.UserID)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
// If the user is not in the room then we will skip them.
|
|
if !isIn {
|
|
continue
|
|
}
|
|
// The user is in the room, so now we will need to authorise the
|
|
// join using the user ID of one of our own users in the room. Pick
|
|
// one.
|
|
joinNIDs, err := r.DB.GetMembershipEventNIDsForRoom(ctx, targetRoomInfo.RoomNID, true, true)
|
|
if err != nil || len(joinNIDs) == 0 {
|
|
// There should always be more than one join NID at this point
|
|
// because we are gated behind GetLocalServerInRoom, but y'know,
|
|
// sometimes strange things happen.
|
|
continue
|
|
}
|
|
// For each of the joined users, let's see if we can get a valid
|
|
// membership event.
|
|
for _, joinNID := range joinNIDs {
|
|
events, err := r.DB.Events(ctx, []types.EventNID{joinNID})
|
|
if err != nil || len(events) != 1 {
|
|
continue
|
|
}
|
|
event := events[0]
|
|
if event.Type() != gomatrixserverlib.MRoomMember || event.StateKey() == nil {
|
|
continue // shouldn't happen
|
|
}
|
|
// Only users that have the power to invite should be chosen.
|
|
if powerLevels.UserLevel(*event.StateKey()) < powerLevels.Invite {
|
|
continue
|
|
}
|
|
res.Resident = true
|
|
res.Allowed = true
|
|
res.AuthorisedVia = *event.StateKey()
|
|
return nil
|
|
}
|
|
}
|
|
return nil
|
|
}
|