dendrite/roomserver/internal/query/query.go

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// Copyright 2020 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package query
import (
"context"
"database/sql"
"encoding/json"
"errors"
"fmt"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/gomatrixserverlib/spec"
"github.com/matrix-org/util"
"github.com/sirupsen/logrus"
"github.com/matrix-org/dendrite/roomserver/storage/tables"
"github.com/matrix-org/dendrite/syncapi/synctypes"
"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/roomserver/acls"
"github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/roomserver/internal/helpers"
"github.com/matrix-org/dendrite/roomserver/state"
"github.com/matrix-org/dendrite/roomserver/storage"
"github.com/matrix-org/dendrite/roomserver/types"
)
type Queryer struct {
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DB storage.Database
Cache caching.RoomServerCaches
IsLocalServerName func(spec.ServerName) bool
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ServerACLs *acls.ServerACLs
}
// QueryLatestEventsAndState implements api.RoomserverInternalAPI
func (r *Queryer) QueryLatestEventsAndState(
ctx context.Context,
request *api.QueryLatestEventsAndStateRequest,
response *api.QueryLatestEventsAndStateResponse,
) error {
return helpers.QueryLatestEventsAndState(ctx, r.DB, request, response)
}
// QueryStateAfterEvents implements api.RoomserverInternalAPI
func (r *Queryer) QueryStateAfterEvents(
ctx context.Context,
request *api.QueryStateAfterEventsRequest,
response *api.QueryStateAfterEventsResponse,
) error {
info, err := r.DB.RoomInfo(ctx, request.RoomID)
if err != nil {
return err
}
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if info == nil || info.IsStub() {
return nil
}
Roomserver/federation input refactor (#2104) * Put federation client functions into their own file * Look for missing auth events in RS input * Remove retrieveMissingAuthEvents from federation API * Logging * Sorta transplanted the code over * Use event origin failing all else * Don't get stuck on mutexes: * Add verifier * Don't mark state events with zero snapshot NID as not existing * Check missing state if not an outlier before storing the event * Reject instead of soft-fail, don't copy roominfo so much * Use synchronous contexts, limit time to fetch missing events * Clean up some commented out bits * Simplify `/send` endpoint significantly * Submit async * Report errors on sending to RS input * Set max payload in NATS to 16MB * Tweak metrics * Add `workerForRoom` for tidiness * Try skipping unmarshalling errors for RespMissingEvents * Track missing prev events separately to avoid calculating state when not possible * Tweak logic around checking missing state * Care about state when checking missing prev events * Don't check missing state for create events * Try that again * Handle create events better * Send create room events as new * Use given event kind when sending auth/state events * Revert "Use given event kind when sending auth/state events" This reverts commit 089d64d271b5fca8c104e1554711187420dbebca. * Only search for missing prev events or state for new events * Tweaks * We only have missing prev if we don't supply state * Room version tweaks * Allow async inputs again * Apply backpressure to consumers/synchronous requests to hopefully stop things being overwhelmed * Set timeouts on roomserver input tasks (need to decide what timeout makes sense) * Use work queue policy, deliver all on restart * Reduce chance of duplicates being sent by NATS * Limit the number of servers we attempt to reduce backpressure * Some review comment fixes * Tidy up a couple things * Don't limit servers, randomise order using map * Some context refactoring * Update gmsl * Don't resend create events * Set stateIDs length correctly or else the roomserver thinks there are missing events when there aren't * Exclude our own servername * Try backing off servers * Make excluding self behaviour optional * Exclude self from g_m_e * Update sytest-whitelist * Update consumers for the roomserver output stream * Remember to send outliers for state returned from /gme * Make full HTTP tests less upsetti * Remove 'If a device list update goes missing, the server resyncs on the next one' from the sytest blacklist * Remove debugging test * Fix blacklist again, remove unnecessary duplicate context * Clearer contexts, don't use background in case there's something happening there * Don't queue up events more than once in memory * Correctly identify create events when checking for state * Fill in gaps again in /gme code * Remove `AuthEventIDs` from `InputRoomEvent` * Remove stray field Co-authored-by: Kegan Dougal <kegan@matrix.org>
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roomState := state.NewStateResolution(r.DB, info)
response.RoomExists = true
response.RoomVersion = info.RoomVersion
prevStates, err := r.DB.StateAtEventIDs(ctx, request.PrevEventIDs)
if err != nil {
if _, ok := err.(types.MissingEventError); ok {
return nil
}
return err
}
response.PrevEventsExist = true
var stateEntries []types.StateEntry
if len(request.StateToFetch) == 0 {
// Look up all of the current room state.
stateEntries, err = roomState.LoadCombinedStateAfterEvents(
ctx, prevStates,
)
} else {
// Look up the current state for the requested tuples.
stateEntries, err = roomState.LoadStateAfterEventsForStringTuples(
ctx, prevStates, request.StateToFetch,
)
}
if err != nil {
if _, ok := err.(types.MissingEventError); ok {
return nil
}
if _, ok := err.(types.MissingStateError); ok {
return nil
}
return err
}
stateEvents, err := helpers.LoadStateEvents(ctx, r.DB, info, stateEntries)
if err != nil {
return err
}
if len(request.PrevEventIDs) > 1 {
var authEventIDs []string
for _, e := range stateEvents {
authEventIDs = append(authEventIDs, e.AuthEventIDs()...)
}
authEventIDs = util.UniqueStrings(authEventIDs)
authEvents, err := GetAuthChain(ctx, r.DB.EventsFromIDs, info, authEventIDs)
if err != nil {
return fmt.Errorf("getAuthChain: %w", err)
}
stateEvents, err = gomatrixserverlib.ResolveConflicts(
info.RoomVersion, gomatrixserverlib.ToPDUs(stateEvents), gomatrixserverlib.ToPDUs(authEvents),
)
if err != nil {
return fmt.Errorf("state.ResolveConflictsAdhoc: %w", err)
}
}
for _, event := range stateEvents {
response.StateEvents = append(response.StateEvents, &types.HeaderedEvent{PDU: event})
}
return nil
}
// QueryEventsByID queries a list of events by event ID for one room. If no room is specified, it will try to determine
// which room to use by querying the first events roomID.
func (r *Queryer) QueryEventsByID(
ctx context.Context,
request *api.QueryEventsByIDRequest,
response *api.QueryEventsByIDResponse,
) error {
if len(request.EventIDs) == 0 {
return nil
}
var err error
// We didn't receive a room ID, we need to fetch it first before we can continue.
// This happens for e.g. ` /_matrix/federation/v1/event/{eventId}`
var roomInfo *types.RoomInfo
if request.RoomID == "" {
var eventNIDs map[string]types.EventMetadata
eventNIDs, err = r.DB.EventNIDs(ctx, []string{request.EventIDs[0]})
if err != nil {
return err
}
if len(eventNIDs) == 0 {
return nil
}
roomInfo, err = r.DB.RoomInfoByNID(ctx, eventNIDs[request.EventIDs[0]].RoomNID)
} else {
roomInfo, err = r.DB.RoomInfo(ctx, request.RoomID)
}
if err != nil {
return err
}
if roomInfo == nil {
return nil
}
events, err := r.DB.EventsFromIDs(ctx, roomInfo, request.EventIDs)
if err != nil {
return err
}
for _, event := range events {
response.Events = append(response.Events, &types.HeaderedEvent{PDU: event.PDU})
}
return nil
}
// QueryMembershipForUser implements api.RoomserverInternalAPI
func (r *Queryer) QueryMembershipForUser(
ctx context.Context,
request *api.QueryMembershipForUserRequest,
response *api.QueryMembershipForUserResponse,
) error {
info, err := r.DB.RoomInfo(ctx, request.RoomID)
if err != nil {
return err
}
if info == nil {
response.RoomExists = false
return nil
}
response.RoomExists = true
membershipEventNID, stillInRoom, isRoomforgotten, err := r.DB.GetMembership(ctx, info.RoomNID, request.UserID)
if err != nil {
return err
}
response.IsRoomForgotten = isRoomforgotten
if membershipEventNID == 0 {
response.HasBeenInRoom = false
return nil
}
response.IsInRoom = stillInRoom
response.HasBeenInRoom = true
evs, err := r.DB.Events(ctx, info, []types.EventNID{membershipEventNID})
if err != nil {
return err
}
if len(evs) != 1 {
return fmt.Errorf("failed to load membership event for event NID %d", membershipEventNID)
}
response.EventID = evs[0].EventID()
response.Membership, err = evs[0].Membership()
return err
}
// QueryMembershipAtEvent returns the known memberships at a given event.
// If the state before an event is not known, an empty list will be returned
// for that event instead.
Implement history visibility on `/messages`, `/context`, `/sync` (#2511) * Add possibility to set history_visibility and user AccountType * Add new DB queries * Add actual history_visibility changes for /messages * Add passing tests * Extract check function * Cleanup * Cleanup * Fix build on 386 * Move ApplyHistoryVisibilityFilter to internal * Move queries to topology table * Add filtering to /sync and /context Some cleanup * Add passing tests; Remove failing tests :( * Re-add passing tests * Move filtering to own function to avoid duplication * Re-add passing test * Use newly added GMSL HistoryVisibility * Update gomatrixserverlib * Set the visibility when creating events * Default to shared history visibility * Remove unused query * Update history visibility checks to use gmsl Update tests * Remove unused statement * Update migrations to set "correct" history visibility * Add method to fetch the membership at a given event * Tweaks and logging * Use actual internal rsAPI, default to shared visibility in tests * Revert "Move queries to topology table" This reverts commit 4f0d41be9c194a46379796435ce73e79203edbd6. * Remove noise/unneeded code * More cleanup * Try to optimize database requests * Fix imports * PR peview fixes/changes * Move setting history visibility to own migration, be more restrictive * Fix unit tests * Lint * Fix missing entries * Tweaks for incremental syncs * Adapt generic changes Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com> Co-authored-by: kegsay <kegan@matrix.org>
2022-08-11 17:23:35 +01:00
func (r *Queryer) QueryMembershipAtEvent(
ctx context.Context,
request *api.QueryMembershipAtEventRequest,
response *api.QueryMembershipAtEventResponse,
) error {
response.Membership = make(map[string]*types.HeaderedEvent)
Implement history visibility on `/messages`, `/context`, `/sync` (#2511) * Add possibility to set history_visibility and user AccountType * Add new DB queries * Add actual history_visibility changes for /messages * Add passing tests * Extract check function * Cleanup * Cleanup * Fix build on 386 * Move ApplyHistoryVisibilityFilter to internal * Move queries to topology table * Add filtering to /sync and /context Some cleanup * Add passing tests; Remove failing tests :( * Re-add passing tests * Move filtering to own function to avoid duplication * Re-add passing test * Use newly added GMSL HistoryVisibility * Update gomatrixserverlib * Set the visibility when creating events * Default to shared history visibility * Remove unused query * Update history visibility checks to use gmsl Update tests * Remove unused statement * Update migrations to set "correct" history visibility * Add method to fetch the membership at a given event * Tweaks and logging * Use actual internal rsAPI, default to shared visibility in tests * Revert "Move queries to topology table" This reverts commit 4f0d41be9c194a46379796435ce73e79203edbd6. * Remove noise/unneeded code * More cleanup * Try to optimize database requests * Fix imports * PR peview fixes/changes * Move setting history visibility to own migration, be more restrictive * Fix unit tests * Lint * Fix missing entries * Tweaks for incremental syncs * Adapt generic changes Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com> Co-authored-by: kegsay <kegan@matrix.org>
2022-08-11 17:23:35 +01:00
info, err := r.DB.RoomInfo(ctx, request.RoomID)
if err != nil {
return fmt.Errorf("unable to get roomInfo: %w", err)
}
if info == nil {
return fmt.Errorf("no roomInfo found")
}
// get the users stateKeyNID
stateKeyNIDs, err := r.DB.EventStateKeyNIDs(ctx, []string{request.UserID})
if err != nil {
return fmt.Errorf("unable to get stateKeyNIDs for %s: %w", request.UserID, err)
}
if _, ok := stateKeyNIDs[request.UserID]; !ok {
return fmt.Errorf("requested stateKeyNID for %s was not found", request.UserID)
}
response.Membership, err = r.DB.GetMembershipForHistoryVisibility(ctx, stateKeyNIDs[request.UserID], info, request.EventIDs...)
switch err {
case nil:
return nil
case tables.OptimisationNotSupportedError: // fallthrough, slow way of getting the membership events for each event
default:
return err
}
response.Membership = make(map[string]*types.HeaderedEvent)
stateEntries, err := helpers.MembershipAtEvent(ctx, r.DB, nil, request.EventIDs, stateKeyNIDs[request.UserID])
Implement history visibility on `/messages`, `/context`, `/sync` (#2511) * Add possibility to set history_visibility and user AccountType * Add new DB queries * Add actual history_visibility changes for /messages * Add passing tests * Extract check function * Cleanup * Cleanup * Fix build on 386 * Move ApplyHistoryVisibilityFilter to internal * Move queries to topology table * Add filtering to /sync and /context Some cleanup * Add passing tests; Remove failing tests :( * Re-add passing tests * Move filtering to own function to avoid duplication * Re-add passing test * Use newly added GMSL HistoryVisibility * Update gomatrixserverlib * Set the visibility when creating events * Default to shared history visibility * Remove unused query * Update history visibility checks to use gmsl Update tests * Remove unused statement * Update migrations to set "correct" history visibility * Add method to fetch the membership at a given event * Tweaks and logging * Use actual internal rsAPI, default to shared visibility in tests * Revert "Move queries to topology table" This reverts commit 4f0d41be9c194a46379796435ce73e79203edbd6. * Remove noise/unneeded code * More cleanup * Try to optimize database requests * Fix imports * PR peview fixes/changes * Move setting history visibility to own migration, be more restrictive * Fix unit tests * Lint * Fix missing entries * Tweaks for incremental syncs * Adapt generic changes Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com> Co-authored-by: kegsay <kegan@matrix.org>
2022-08-11 17:23:35 +01:00
if err != nil {
return fmt.Errorf("unable to get state before event: %w", err)
}
// If we only have one or less state entries, we can short circuit the below
// loop and avoid hitting the database
allStateEventNIDs := make(map[types.EventNID]types.StateEntry)
for _, eventID := range request.EventIDs {
stateEntry := stateEntries[eventID]
for _, s := range stateEntry {
allStateEventNIDs[s.EventNID] = s
}
}
var canShortCircuit bool
if len(allStateEventNIDs) <= 1 {
canShortCircuit = true
}
var memberships []types.Event
Implement history visibility on `/messages`, `/context`, `/sync` (#2511) * Add possibility to set history_visibility and user AccountType * Add new DB queries * Add actual history_visibility changes for /messages * Add passing tests * Extract check function * Cleanup * Cleanup * Fix build on 386 * Move ApplyHistoryVisibilityFilter to internal * Move queries to topology table * Add filtering to /sync and /context Some cleanup * Add passing tests; Remove failing tests :( * Re-add passing tests * Move filtering to own function to avoid duplication * Re-add passing test * Use newly added GMSL HistoryVisibility * Update gomatrixserverlib * Set the visibility when creating events * Default to shared history visibility * Remove unused query * Update history visibility checks to use gmsl Update tests * Remove unused statement * Update migrations to set "correct" history visibility * Add method to fetch the membership at a given event * Tweaks and logging * Use actual internal rsAPI, default to shared visibility in tests * Revert "Move queries to topology table" This reverts commit 4f0d41be9c194a46379796435ce73e79203edbd6. * Remove noise/unneeded code * More cleanup * Try to optimize database requests * Fix imports * PR peview fixes/changes * Move setting history visibility to own migration, be more restrictive * Fix unit tests * Lint * Fix missing entries * Tweaks for incremental syncs * Adapt generic changes Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com> Co-authored-by: kegsay <kegan@matrix.org>
2022-08-11 17:23:35 +01:00
for _, eventID := range request.EventIDs {
stateEntry, ok := stateEntries[eventID]
if !ok || len(stateEntry) == 0 {
response.Membership[eventID] = nil
continue
}
// If we can short circuit, e.g. we only have 0 or 1 membership events, we only get the memberships
// once. If we have more than one membership event, we need to get the state for each state entry.
if canShortCircuit {
if len(memberships) == 0 {
memberships, err = helpers.GetMembershipsAtState(ctx, r.DB, info, stateEntry, false)
}
} else {
memberships, err = helpers.GetMembershipsAtState(ctx, r.DB, info, stateEntry, false)
}
Implement history visibility on `/messages`, `/context`, `/sync` (#2511) * Add possibility to set history_visibility and user AccountType * Add new DB queries * Add actual history_visibility changes for /messages * Add passing tests * Extract check function * Cleanup * Cleanup * Fix build on 386 * Move ApplyHistoryVisibilityFilter to internal * Move queries to topology table * Add filtering to /sync and /context Some cleanup * Add passing tests; Remove failing tests :( * Re-add passing tests * Move filtering to own function to avoid duplication * Re-add passing test * Use newly added GMSL HistoryVisibility * Update gomatrixserverlib * Set the visibility when creating events * Default to shared history visibility * Remove unused query * Update history visibility checks to use gmsl Update tests * Remove unused statement * Update migrations to set "correct" history visibility * Add method to fetch the membership at a given event * Tweaks and logging * Use actual internal rsAPI, default to shared visibility in tests * Revert "Move queries to topology table" This reverts commit 4f0d41be9c194a46379796435ce73e79203edbd6. * Remove noise/unneeded code * More cleanup * Try to optimize database requests * Fix imports * PR peview fixes/changes * Move setting history visibility to own migration, be more restrictive * Fix unit tests * Lint * Fix missing entries * Tweaks for incremental syncs * Adapt generic changes Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com> Co-authored-by: kegsay <kegan@matrix.org>
2022-08-11 17:23:35 +01:00
if err != nil {
return fmt.Errorf("unable to get memberships at state: %w", err)
}
// Iterate over all membership events we got. Given we only query the membership for
// one user and assuming this user only ever has one membership event associated to
// a given event, overwrite any other existing membership events.
Implement history visibility on `/messages`, `/context`, `/sync` (#2511) * Add possibility to set history_visibility and user AccountType * Add new DB queries * Add actual history_visibility changes for /messages * Add passing tests * Extract check function * Cleanup * Cleanup * Fix build on 386 * Move ApplyHistoryVisibilityFilter to internal * Move queries to topology table * Add filtering to /sync and /context Some cleanup * Add passing tests; Remove failing tests :( * Re-add passing tests * Move filtering to own function to avoid duplication * Re-add passing test * Use newly added GMSL HistoryVisibility * Update gomatrixserverlib * Set the visibility when creating events * Default to shared history visibility * Remove unused query * Update history visibility checks to use gmsl Update tests * Remove unused statement * Update migrations to set "correct" history visibility * Add method to fetch the membership at a given event * Tweaks and logging * Use actual internal rsAPI, default to shared visibility in tests * Revert "Move queries to topology table" This reverts commit 4f0d41be9c194a46379796435ce73e79203edbd6. * Remove noise/unneeded code * More cleanup * Try to optimize database requests * Fix imports * PR peview fixes/changes * Move setting history visibility to own migration, be more restrictive * Fix unit tests * Lint * Fix missing entries * Tweaks for incremental syncs * Adapt generic changes Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com> Co-authored-by: kegsay <kegan@matrix.org>
2022-08-11 17:23:35 +01:00
for i := range memberships {
ev := memberships[i]
if ev.Type() == spec.MRoomMember && ev.StateKeyEquals(request.UserID) {
response.Membership[eventID] = &types.HeaderedEvent{PDU: ev.PDU}
Implement history visibility on `/messages`, `/context`, `/sync` (#2511) * Add possibility to set history_visibility and user AccountType * Add new DB queries * Add actual history_visibility changes for /messages * Add passing tests * Extract check function * Cleanup * Cleanup * Fix build on 386 * Move ApplyHistoryVisibilityFilter to internal * Move queries to topology table * Add filtering to /sync and /context Some cleanup * Add passing tests; Remove failing tests :( * Re-add passing tests * Move filtering to own function to avoid duplication * Re-add passing test * Use newly added GMSL HistoryVisibility * Update gomatrixserverlib * Set the visibility when creating events * Default to shared history visibility * Remove unused query * Update history visibility checks to use gmsl Update tests * Remove unused statement * Update migrations to set "correct" history visibility * Add method to fetch the membership at a given event * Tweaks and logging * Use actual internal rsAPI, default to shared visibility in tests * Revert "Move queries to topology table" This reverts commit 4f0d41be9c194a46379796435ce73e79203edbd6. * Remove noise/unneeded code * More cleanup * Try to optimize database requests * Fix imports * PR peview fixes/changes * Move setting history visibility to own migration, be more restrictive * Fix unit tests * Lint * Fix missing entries * Tweaks for incremental syncs * Adapt generic changes Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com> Co-authored-by: kegsay <kegan@matrix.org>
2022-08-11 17:23:35 +01:00
}
}
}
return nil
}
// QueryMembershipsForRoom implements api.RoomserverInternalAPI
func (r *Queryer) QueryMembershipsForRoom(
ctx context.Context,
request *api.QueryMembershipsForRoomRequest,
response *api.QueryMembershipsForRoomResponse,
) error {
info, err := r.DB.RoomInfo(ctx, request.RoomID)
if err != nil {
return err
}
if info == nil {
return nil
}
// If no sender is specified then we will just return the entire
// set of memberships for the room, regardless of whether a specific
// user is allowed to see them or not.
if request.Sender == "" {
var events []types.Event
var eventNIDs []types.EventNID
eventNIDs, err = r.DB.GetMembershipEventNIDsForRoom(ctx, info.RoomNID, request.JoinedOnly, request.LocalOnly)
if err != nil {
if err == sql.ErrNoRows {
return nil
}
return fmt.Errorf("r.DB.GetMembershipEventNIDsForRoom: %w", err)
}
events, err = r.DB.Events(ctx, info, eventNIDs)
if err != nil {
return fmt.Errorf("r.DB.Events: %w", err)
}
for _, event := range events {
clientEvent := synctypes.ToClientEvent(event.PDU, synctypes.FormatAll)
response.JoinEvents = append(response.JoinEvents, clientEvent)
}
return nil
}
membershipEventNID, stillInRoom, isRoomforgotten, err := r.DB.GetMembership(ctx, info.RoomNID, request.Sender)
if err != nil {
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return err
}
response.IsRoomForgotten = isRoomforgotten
if membershipEventNID == 0 {
response.HasBeenInRoom = false
response.JoinEvents = nil
return nil
}
response.HasBeenInRoom = true
response.JoinEvents = []synctypes.ClientEvent{}
var events []types.Event
var stateEntries []types.StateEntry
if stillInRoom {
var eventNIDs []types.EventNID
eventNIDs, err = r.DB.GetMembershipEventNIDsForRoom(ctx, info.RoomNID, request.JoinedOnly, false)
if err != nil {
if err == sql.ErrNoRows {
return nil
}
return err
}
events, err = r.DB.Events(ctx, info, eventNIDs)
} else {
Roomserver/federation input refactor (#2104) * Put federation client functions into their own file * Look for missing auth events in RS input * Remove retrieveMissingAuthEvents from federation API * Logging * Sorta transplanted the code over * Use event origin failing all else * Don't get stuck on mutexes: * Add verifier * Don't mark state events with zero snapshot NID as not existing * Check missing state if not an outlier before storing the event * Reject instead of soft-fail, don't copy roominfo so much * Use synchronous contexts, limit time to fetch missing events * Clean up some commented out bits * Simplify `/send` endpoint significantly * Submit async * Report errors on sending to RS input * Set max payload in NATS to 16MB * Tweak metrics * Add `workerForRoom` for tidiness * Try skipping unmarshalling errors for RespMissingEvents * Track missing prev events separately to avoid calculating state when not possible * Tweak logic around checking missing state * Care about state when checking missing prev events * Don't check missing state for create events * Try that again * Handle create events better * Send create room events as new * Use given event kind when sending auth/state events * Revert "Use given event kind when sending auth/state events" This reverts commit 089d64d271b5fca8c104e1554711187420dbebca. * Only search for missing prev events or state for new events * Tweaks * We only have missing prev if we don't supply state * Room version tweaks * Allow async inputs again * Apply backpressure to consumers/synchronous requests to hopefully stop things being overwhelmed * Set timeouts on roomserver input tasks (need to decide what timeout makes sense) * Use work queue policy, deliver all on restart * Reduce chance of duplicates being sent by NATS * Limit the number of servers we attempt to reduce backpressure * Some review comment fixes * Tidy up a couple things * Don't limit servers, randomise order using map * Some context refactoring * Update gmsl * Don't resend create events * Set stateIDs length correctly or else the roomserver thinks there are missing events when there aren't * Exclude our own servername * Try backing off servers * Make excluding self behaviour optional * Exclude self from g_m_e * Update sytest-whitelist * Update consumers for the roomserver output stream * Remember to send outliers for state returned from /gme * Make full HTTP tests less upsetti * Remove 'If a device list update goes missing, the server resyncs on the next one' from the sytest blacklist * Remove debugging test * Fix blacklist again, remove unnecessary duplicate context * Clearer contexts, don't use background in case there's something happening there * Don't queue up events more than once in memory * Correctly identify create events when checking for state * Fill in gaps again in /gme code * Remove `AuthEventIDs` from `InputRoomEvent` * Remove stray field Co-authored-by: Kegan Dougal <kegan@matrix.org>
2022-01-27 14:29:14 +00:00
stateEntries, err = helpers.StateBeforeEvent(ctx, r.DB, info, membershipEventNID)
if err != nil {
logrus.WithField("membership_event_nid", membershipEventNID).WithError(err).Error("failed to load state before event")
return err
}
events, err = helpers.GetMembershipsAtState(ctx, r.DB, info, stateEntries, request.JoinedOnly)
}
if err != nil {
return err
}
for _, event := range events {
clientEvent := synctypes.ToClientEvent(event.PDU, synctypes.FormatAll)
response.JoinEvents = append(response.JoinEvents, clientEvent)
}
return nil
}
// QueryServerJoinedToRoom implements api.RoomserverInternalAPI
func (r *Queryer) QueryServerJoinedToRoom(
ctx context.Context,
request *api.QueryServerJoinedToRoomRequest,
response *api.QueryServerJoinedToRoomResponse,
) error {
info, err := r.DB.RoomInfo(ctx, request.RoomID)
if err != nil {
return fmt.Errorf("r.DB.RoomInfo: %w", err)
}
2022-08-01 15:29:19 +01:00
if info == nil || info.IsStub() {
return nil
}
response.RoomExists = true
2022-11-15 15:05:23 +00:00
if r.IsLocalServerName(request.ServerName) || request.ServerName == "" {
response.IsInRoom, err = r.DB.GetLocalServerInRoom(ctx, info.RoomNID)
if err != nil {
return fmt.Errorf("r.DB.GetLocalServerInRoom: %w", err)
}
} else {
response.IsInRoom, err = r.DB.GetServerInRoom(ctx, info.RoomNID, request.ServerName)
if err != nil {
return fmt.Errorf("r.DB.GetServerInRoom: %w", err)
}
}
return nil
}
// QueryServerAllowedToSeeEvent implements api.RoomserverInternalAPI
func (r *Queryer) QueryServerAllowedToSeeEvent(
ctx context.Context,
serverName spec.ServerName,
eventID string,
) (allowed bool, err error) {
events, err := r.DB.EventNIDs(ctx, []string{eventID})
if err != nil {
return
}
if len(events) == 0 {
return allowed, nil
}
info, err := r.DB.RoomInfoByNID(ctx, events[eventID].RoomNID)
if err != nil {
return allowed, err
}
2022-08-02 12:27:15 +01:00
if info == nil || info.IsStub() {
return allowed, nil
}
var isInRoom bool
if r.IsLocalServerName(serverName) || serverName == "" {
isInRoom, err = r.DB.GetLocalServerInRoom(ctx, info.RoomNID)
if err != nil {
return allowed, fmt.Errorf("r.DB.GetLocalServerInRoom: %w", err)
}
} else {
isInRoom, err = r.DB.GetServerInRoom(ctx, info.RoomNID, serverName)
if err != nil {
return allowed, fmt.Errorf("r.DB.GetServerInRoom: %w", err)
}
}
return helpers.CheckServerAllowedToSeeEvent(
ctx, r.DB, info, eventID, serverName, isInRoom,
)
}
// QueryMissingEvents implements api.RoomserverInternalAPI
func (r *Queryer) QueryMissingEvents(
ctx context.Context,
request *api.QueryMissingEventsRequest,
response *api.QueryMissingEventsResponse,
) error {
var front []string
eventsToFilter := make(map[string]bool, len(request.LatestEvents))
visited := make(map[string]bool, request.Limit) // request.Limit acts as a hint to size.
for _, id := range request.EarliestEvents {
visited[id] = true
}
for _, id := range request.LatestEvents {
if !visited[id] {
front = append(front, id)
eventsToFilter[id] = true
}
}
if len(front) == 0 {
return nil // no events to query, give up.
}
events, err := r.DB.EventNIDs(ctx, []string{front[0]})
if err != nil {
return err
}
if len(events) == 0 {
return nil // we are missing the events being asked to search from, give up.
}
info, err := r.DB.RoomInfoByNID(ctx, events[front[0]].RoomNID)
if err != nil {
return err
}
2022-08-01 15:29:19 +01:00
if info == nil || info.IsStub() {
return fmt.Errorf("missing RoomInfo for room %d", events[front[0]].RoomNID)
}
resultNIDs, redactEventIDs, err := helpers.ScanEventTree(ctx, r.DB, info, front, visited, request.Limit, request.ServerName)
if err != nil {
return err
}
loadedEvents, err := helpers.LoadEvents(ctx, r.DB, info, resultNIDs)
if err != nil {
return err
}
response.Events = make([]*types.HeaderedEvent, 0, len(loadedEvents)-len(eventsToFilter))
for _, event := range loadedEvents {
if !eventsToFilter[event.EventID()] {
if _, ok := redactEventIDs[event.EventID()]; ok {
event.Redact()
}
response.Events = append(response.Events, &types.HeaderedEvent{PDU: event})
}
}
return err
}
// QueryStateAndAuthChain implements api.RoomserverInternalAPI
func (r *Queryer) QueryStateAndAuthChain(
ctx context.Context,
request *api.QueryStateAndAuthChainRequest,
response *api.QueryStateAndAuthChainResponse,
) error {
info, err := r.DB.RoomInfo(ctx, request.RoomID)
if err != nil {
return err
}
2022-08-01 15:29:19 +01:00
if info == nil || info.IsStub() {
return nil
}
response.RoomExists = true
response.RoomVersion = info.RoomVersion
// handle this entirely separately to the other case so we don't have to pull out
// the entire current state of the room
// TODO: this probably means it should be a different query operation...
if request.OnlyFetchAuthChain {
var authEvents []gomatrixserverlib.PDU
authEvents, err = GetAuthChain(ctx, r.DB.EventsFromIDs, info, request.AuthEventIDs)
if err != nil {
return err
}
for _, event := range authEvents {
response.AuthChainEvents = append(response.AuthChainEvents, &types.HeaderedEvent{PDU: event})
}
return nil
}
var stateEvents []gomatrixserverlib.PDU
stateEvents, rejected, stateMissing, err := r.loadStateAtEventIDs(ctx, info, request.PrevEventIDs)
if err != nil {
return err
}
response.StateKnown = !stateMissing
response.IsRejected = rejected
response.PrevEventsExist = true
// 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, info, authEventIDs)
if err != nil {
return err
}
Federation for v3/v4 rooms (#954) * Update gomatrixserverlib * Default to room version 4 * Update gomatrixserverlib * Limit prev_events and auth_events * Fix auth_events, prev_events * Fix linter issues * Update gomatrixserverlib * Fix getState * Update sytest-whitelist * Squashed commit of the following: commit 067b87506357c996fd6ddb11271db9469ad4ce80 Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Apr 3 14:29:06 2020 +0100 Invites v2 endpoint (#952) * Start converting v1 invite endpoint to v2 * Update gomatrixserverlib * Early federationsender code for sending invites * Sending invites sorta happens now * Populate invite request with stripped state * Remodel a bit, don't reflect received invites * Handle invite_room_state * Handle room versions a bit better * Update gomatrixserverlib * Tweak order in destinationQueue.next * Revert check in processMessage * Tweak federation sender destination queue code a bit * Add comments commit 955244c09298d0e6c870377dad3af2ffa1f5e578 Author: Ben B <benne@klimlive.de> Date: Fri Apr 3 12:40:50 2020 +0200 use custom http client instead of the http DefaultClient (#823) This commit replaces the default client from the http lib with a custom one. The previously used default client doesn't come with a timeout. This could cause unwanted locks. That solution chosen here creates a http client in the base component dendrite with a constant timeout of 30 seconds. If it should be necessary to overwrite this, we could include the timeout in the dendrite configuration. Here it would be a good idea to extend the type "Address" by a timeout and create an http client for each service. Closes #820 Signed-off-by: Benedikt Bongartz <benne@klimlive.de> Co-authored-by: Kegsay <kegan@matrix.org> * Update sytest-whitelist, sytest-blacklist * Update go.mod/go.sum * Add some error wrapping for debug * Add a NOTSPEC to common/events.go * Perform state resolution at send_join * Set default room version to v2 again * Tweak GetCapabilities * Add comments to ResolveConflictsAdhoc * Update sytest-blacklist * go mod tidy * Update sytest-whitelist, sytest-blacklist * Update versions * Updates from review comments * Update sytest-blacklist, sytest-whitelist * Check room versions compatible at make_join, add some comments, update gomatrixserverlib, other tweaks * Set default room version back to v2 * Update gomatrixserverlib, sytest-whitelist
2020-04-09 15:46:06 +01:00
if request.ResolveState {
stateEvents, err = gomatrixserverlib.ResolveConflicts(
info.RoomVersion, gomatrixserverlib.ToPDUs(stateEvents), gomatrixserverlib.ToPDUs(authEvents),
)
if err != nil {
return err
Federation for v3/v4 rooms (#954) * Update gomatrixserverlib * Default to room version 4 * Update gomatrixserverlib * Limit prev_events and auth_events * Fix auth_events, prev_events * Fix linter issues * Update gomatrixserverlib * Fix getState * Update sytest-whitelist * Squashed commit of the following: commit 067b87506357c996fd6ddb11271db9469ad4ce80 Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Apr 3 14:29:06 2020 +0100 Invites v2 endpoint (#952) * Start converting v1 invite endpoint to v2 * Update gomatrixserverlib * Early federationsender code for sending invites * Sending invites sorta happens now * Populate invite request with stripped state * Remodel a bit, don't reflect received invites * Handle invite_room_state * Handle room versions a bit better * Update gomatrixserverlib * Tweak order in destinationQueue.next * Revert check in processMessage * Tweak federation sender destination queue code a bit * Add comments commit 955244c09298d0e6c870377dad3af2ffa1f5e578 Author: Ben B <benne@klimlive.de> Date: Fri Apr 3 12:40:50 2020 +0200 use custom http client instead of the http DefaultClient (#823) This commit replaces the default client from the http lib with a custom one. The previously used default client doesn't come with a timeout. This could cause unwanted locks. That solution chosen here creates a http client in the base component dendrite with a constant timeout of 30 seconds. If it should be necessary to overwrite this, we could include the timeout in the dendrite configuration. Here it would be a good idea to extend the type "Address" by a timeout and create an http client for each service. Closes #820 Signed-off-by: Benedikt Bongartz <benne@klimlive.de> Co-authored-by: Kegsay <kegan@matrix.org> * Update sytest-whitelist, sytest-blacklist * Update go.mod/go.sum * Add some error wrapping for debug * Add a NOTSPEC to common/events.go * Perform state resolution at send_join * Set default room version to v2 again * Tweak GetCapabilities * Add comments to ResolveConflictsAdhoc * Update sytest-blacklist * go mod tidy * Update sytest-whitelist, sytest-blacklist * Update versions * Updates from review comments * Update sytest-blacklist, sytest-whitelist * Check room versions compatible at make_join, add some comments, update gomatrixserverlib, other tweaks * Set default room version back to v2 * Update gomatrixserverlib, sytest-whitelist
2020-04-09 15:46:06 +01:00
}
}
for _, event := range stateEvents {
response.StateEvents = append(response.StateEvents, &types.HeaderedEvent{PDU: event})
}
for _, event := range authEvents {
response.AuthChainEvents = append(response.AuthChainEvents, &types.HeaderedEvent{PDU: event})
}
return err
}
// first bool: is rejected, second bool: state missing
func (r *Queryer) loadStateAtEventIDs(ctx context.Context, roomInfo *types.RoomInfo, eventIDs []string) ([]gomatrixserverlib.PDU, 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, roomInfo, stateEntries)
return events, rejected, false, err
}
type eventsFromIDs func(context.Context, *types.RoomInfo, []string) ([]types.Event, error)
Peeking over federation via MSC2444 (#1391) * a very very WIP first cut of peeking via MSC2753. doesn't yet compile or work. needs to actually add the peeking block into the sync response. checking in now before it gets any bigger, and to gather any initial feedback on the vague shape of it. * make PeekingDeviceSet private * add server_name param * blind stab at adding a `peek` section to /sync * make it build * make it launch * add peeking to getResponseWithPDUsForCompleteSync * cancel any peeks when we join a room * spell out how to runoutside of docker if you want speed * fix SQL * remove unnecessary txn for SelectPeeks * fix s/join/peek/ cargocult fail * HACK: Track goroutine IDs to determine when we write by the wrong thread To use: set `DENDRITE_TRACE_SQL=1` then grep for `unsafe` * Track partition offsets and only log unsafe for non-selects * Put redactions in the writer goroutine * Update filters on writer goroutine * wrap peek storage in goid hack * use exclusive writer, and MarkPeeksAsOld more efficiently * don't log ascii in binary at sql trace... * strip out empty roomd deltas * re-add txn to SelectPeeks * re-add accidentally deleted field * reject peeks for non-worldreadable rooms * move perform_peek * fix package * correctly refactor perform_peek * WIP of implementing MSC2444 * typo * Revert "Merge branch 'kegan/HACK-goid-sqlite-db-is-locked' into matthew/peeking" This reverts commit 3cebd8dbfbccdf82b7930b7b6eda92095ca6ef41, reversing changes made to ed4b3a58a7855acc43530693cc855b439edf9c7c. * (almost) make it build * clean up bad merge * support SendEventWithState with optional event * fix build & lint * fix build & lint * reinstate federated peeks in the roomserver (doh) * fix sql thinko * todo for authenticating state returned by /peek * support returning current state from QueryStateAndAuthChain * handle SS /peek * reimplement SS /peek to prod the RS to tell the FS about the peek * rename RemotePeeks as OutboundPeeks * rename remote_peeks_table as outbound_peeks_table * add perform_handle_remote_peek.go * flesh out federation doc * add inbound peeks table and hook it up * rename ambiguous RemotePeek as InboundPeek * rename FSAPI's PerformPeek as PerformOutboundPeek * setup inbound peeks db correctly * fix api.SendEventWithState with no event * track latestevent on /peek * go fmt * document the peek send stream race better * fix SendEventWithRewrite not to bail if handed a non-state event * add fixme * switch SS /peek to use SendEventWithRewrite * fix comment * use reverse topo ordering to find latest extrem * support postgres for federated peeking * go fmt * back out bogus go.mod change * Fix performOutboundPeekUsingServer * Fix getAuthChain -> GetAuthChain * Fix build issues * Fix build again * Fix getAuthChain -> GetAuthChain * Don't repeat outbound peeks for the same room ID to the same servers * Fix lint * Don't omitempty to appease sytest Co-authored-by: Kegan Dougal <kegan@matrix.org> Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
2021-01-22 14:55:08 +00:00
// 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.
Peeking over federation via MSC2444 (#1391) * a very very WIP first cut of peeking via MSC2753. doesn't yet compile or work. needs to actually add the peeking block into the sync response. checking in now before it gets any bigger, and to gather any initial feedback on the vague shape of it. * make PeekingDeviceSet private * add server_name param * blind stab at adding a `peek` section to /sync * make it build * make it launch * add peeking to getResponseWithPDUsForCompleteSync * cancel any peeks when we join a room * spell out how to runoutside of docker if you want speed * fix SQL * remove unnecessary txn for SelectPeeks * fix s/join/peek/ cargocult fail * HACK: Track goroutine IDs to determine when we write by the wrong thread To use: set `DENDRITE_TRACE_SQL=1` then grep for `unsafe` * Track partition offsets and only log unsafe for non-selects * Put redactions in the writer goroutine * Update filters on writer goroutine * wrap peek storage in goid hack * use exclusive writer, and MarkPeeksAsOld more efficiently * don't log ascii in binary at sql trace... * strip out empty roomd deltas * re-add txn to SelectPeeks * re-add accidentally deleted field * reject peeks for non-worldreadable rooms * move perform_peek * fix package * correctly refactor perform_peek * WIP of implementing MSC2444 * typo * Revert "Merge branch 'kegan/HACK-goid-sqlite-db-is-locked' into matthew/peeking" This reverts commit 3cebd8dbfbccdf82b7930b7b6eda92095ca6ef41, reversing changes made to ed4b3a58a7855acc43530693cc855b439edf9c7c. * (almost) make it build * clean up bad merge * support SendEventWithState with optional event * fix build & lint * fix build & lint * reinstate federated peeks in the roomserver (doh) * fix sql thinko * todo for authenticating state returned by /peek * support returning current state from QueryStateAndAuthChain * handle SS /peek * reimplement SS /peek to prod the RS to tell the FS about the peek * rename RemotePeeks as OutboundPeeks * rename remote_peeks_table as outbound_peeks_table * add perform_handle_remote_peek.go * flesh out federation doc * add inbound peeks table and hook it up * rename ambiguous RemotePeek as InboundPeek * rename FSAPI's PerformPeek as PerformOutboundPeek * setup inbound peeks db correctly * fix api.SendEventWithState with no event * track latestevent on /peek * go fmt * document the peek send stream race better * fix SendEventWithRewrite not to bail if handed a non-state event * add fixme * switch SS /peek to use SendEventWithRewrite * fix comment * use reverse topo ordering to find latest extrem * support postgres for federated peeking * go fmt * back out bogus go.mod change * Fix performOutboundPeekUsingServer * Fix getAuthChain -> GetAuthChain * Fix build issues * Fix build again * Fix getAuthChain -> GetAuthChain * Don't repeat outbound peeks for the same room ID to the same servers * Fix lint * Don't omitempty to appease sytest Co-authored-by: Kegan Dougal <kegan@matrix.org> Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
2021-01-22 14:55:08 +00:00
func GetAuthChain(
ctx context.Context, fn eventsFromIDs, roomInfo *types.RoomInfo, authEventIDs []string,
) ([]gomatrixserverlib.PDU, 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.PDU)
for len(eventsToFetch) > 0 {
// Try to retrieve the events from the database.
events, err := fn(ctx, roomInfo, 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.PDU
// 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 _, authEventID := range event.AuthEventIDs() {
if _, ok := authEventsMap[authEventID]; !ok {
eventsToFetch = append(eventsToFetch, authEventID)
}
}
}
}
// We've now retrieved all of the events we can. Flatten them down into an
// array and return them.
var authEvents []gomatrixserverlib.PDU
for _, event := range authEventsMap {
authEvents = append(authEvents, event)
}
return authEvents, nil
}
// QueryRoomVersionForRoom implements api.RoomserverInternalAPI
func (r *Queryer) QueryRoomVersionForRoom(ctx context.Context, roomID string) (gomatrixserverlib.RoomVersion, error) {
if roomVersion, ok := r.Cache.GetRoomVersion(roomID); ok {
return roomVersion, nil
}
info, err := r.DB.RoomInfo(ctx, roomID)
Further room version wiring (#936) * Room version 2 by default, other wiring updates, update gomatrixserverlib * Fix nil pointer exception * Fix some more nil pointer exceptions hopefully * Update gomatrixserverlib * Send all room versions when joining, not just stable ones * Remove room version cquery * Get room version when getting events from the roomserver database * Reset default back to room version 2 * Don't generate event IDs unless needed * Revert "Remove room version cquery" This reverts commit a170d5873360dd059614460acc8b21ab2cda9767. * Query room version in federation API, client API as needed * Improvements to make_join send_join dance * Make room server producers use headered events * Lint tweaks * Update gomatrixserverlib * Versioned SendJoin * Query room version in syncapi backfill * Handle transaction marshalling/unmarshalling within Dendrite * Sorta fix federation (kinda) * whoops commit federation API too * Use NewEventFromTrustedJSON when getting events from the database * Update gomatrixserverlib * Strip headers on federationapi endpoints * Fix bug in clientapi profile room version query * Update gomatrixserverlib * Return more useful error if room version query doesn't find the room * Update gomatrixserverlib * Update gomatrixserverlib * Maybe fix federation * Fix formatting directive * Update sytest whitelist and blacklist * Temporarily disable room versions 3 and 4 until gmsl is fixed * Fix count of EDUs in logging * Update gomatrixserverlib * Update gomatrixserverlib * Update gomatrixserverlib * Rely on EventBuilder in gmsl to generate the event IDs for us * Some review comments fixed * Move function out of common and into gmsl * Comment in federationsender destinationqueue * Update gomatrixserverlib
2020-03-27 16:28:22 +00:00
if err != nil {
return "", err
Further room version wiring (#936) * Room version 2 by default, other wiring updates, update gomatrixserverlib * Fix nil pointer exception * Fix some more nil pointer exceptions hopefully * Update gomatrixserverlib * Send all room versions when joining, not just stable ones * Remove room version cquery * Get room version when getting events from the roomserver database * Reset default back to room version 2 * Don't generate event IDs unless needed * Revert "Remove room version cquery" This reverts commit a170d5873360dd059614460acc8b21ab2cda9767. * Query room version in federation API, client API as needed * Improvements to make_join send_join dance * Make room server producers use headered events * Lint tweaks * Update gomatrixserverlib * Versioned SendJoin * Query room version in syncapi backfill * Handle transaction marshalling/unmarshalling within Dendrite * Sorta fix federation (kinda) * whoops commit federation API too * Use NewEventFromTrustedJSON when getting events from the database * Update gomatrixserverlib * Strip headers on federationapi endpoints * Fix bug in clientapi profile room version query * Update gomatrixserverlib * Return more useful error if room version query doesn't find the room * Update gomatrixserverlib * Update gomatrixserverlib * Maybe fix federation * Fix formatting directive * Update sytest whitelist and blacklist * Temporarily disable room versions 3 and 4 until gmsl is fixed * Fix count of EDUs in logging * Update gomatrixserverlib * Update gomatrixserverlib * Update gomatrixserverlib * Rely on EventBuilder in gmsl to generate the event IDs for us * Some review comments fixed * Move function out of common and into gmsl * Comment in federationsender destinationqueue * Update gomatrixserverlib
2020-03-27 16:28:22 +00:00
}
if info == nil {
return "", fmt.Errorf("QueryRoomVersionForRoom: missing room info for room %s", roomID)
}
r.Cache.StoreRoomVersion(roomID, info.RoomVersion)
return info.RoomVersion, nil
}
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, req.NetworkID, req.IncludeAllNetworks)
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]*types.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) QueryLeftUsers(ctx context.Context, req *api.QueryLeftUsersRequest, res *api.QueryLeftUsersResponse) error {
var err error
res.LeftUsers, err = r.DB.GetLeftUsers(ctx, req.StaleDeviceListUsers)
return err
}
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, nil, req.EventIDs)
if err != nil {
return err
}
hchain := make([]*types.HeaderedEvent, len(chain))
for i := range chain {
hchain[i] = &types.HeaderedEvent{PDU: chain[i]}
}
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)
}
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if roomInfo == nil || roomInfo.IsStub() {
return nil // fmt.Errorf("room %q doesn't exist or is stub room", req.RoomID)
}
verImpl, err := gomatrixserverlib.GetRoomVersion(roomInfo.RoomVersion)
if err != nil {
return err
}
// If the room version doesn't allow restricted joins then don't
// try to process any further.
allowRestrictedJoins := verImpl.MayAllowRestrictedJoinsInEventAuth()
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, spec.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" or "knock_restricted" then there's nothing more to do.
res.Restricted = joinRules.JoinRule == spec.Restricted || joinRules.JoinRule == spec.KnockRestricted
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, spec.MRoomPowerLevels, "")
if err != nil {
return fmt.Errorf("r.DB.GetStateEvent: %w", err)
}
powerLevels, err := powerLevelsEvent.PowerLevels()
if err != nil {
return fmt.Errorf("unable to get powerlevels: %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 != spec.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)
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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, roomInfo, []types.EventNID{joinNID})
if err != nil || len(events) != 1 {
continue
}
event := events[0]
if event.Type() != spec.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
}