mirror of
https://github.com/matrix-org/dendrite
synced 2024-09-06 11:15:34 +02:00
* 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 089d64d271
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* 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>
129 lines
4 KiB
Go
129 lines
4 KiB
Go
// Copyright 2020 New Vector Ltd
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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 perform
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import (
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"context"
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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/internal/input"
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"github.com/matrix-org/dendrite/roomserver/internal/query"
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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/gomatrixserverlib"
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"github.com/matrix-org/util"
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)
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type InboundPeeker struct {
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DB storage.Database
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Inputer *input.Inputer
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}
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// PerformInboundPeek handles peeking into matrix rooms, including over
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// federation by talking to the federationapi. called when a remote server
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// initiates a /peek over federation.
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//
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// It should atomically figure out the current state of the room (for the
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// response to /peek) while adding the new inbound peek to the kafka stream so the
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// fed sender can start sending peeked events without a race between the state
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// snapshot and the stream of peeked events.
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func (r *InboundPeeker) PerformInboundPeek(
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ctx context.Context,
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request *api.PerformInboundPeekRequest,
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response *api.PerformInboundPeekResponse,
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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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var stateEvents []*gomatrixserverlib.Event
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var currentStateSnapshotNID types.StateSnapshotNID
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latestEventRefs, currentStateSnapshotNID, _, err :=
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r.DB.LatestEventIDs(ctx, info.RoomNID)
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if err != nil {
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return err
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}
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latestEvents, err := r.DB.EventsFromIDs(ctx, []string{latestEventRefs[0].EventID})
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if err != nil {
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return err
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}
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var sortedLatestEvents []*gomatrixserverlib.Event
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for _, ev := range latestEvents {
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sortedLatestEvents = append(sortedLatestEvents, ev.Event)
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}
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sortedLatestEvents = gomatrixserverlib.ReverseTopologicalOrdering(
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sortedLatestEvents,
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gomatrixserverlib.TopologicalOrderByPrevEvents,
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)
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response.LatestEvent = sortedLatestEvents[0].Headered(info.RoomVersion)
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// XXX: do we actually need to do a state resolution here?
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roomState := state.NewStateResolution(r.DB, info)
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var stateEntries []types.StateEntry
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stateEntries, err = roomState.LoadStateAtSnapshot(
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ctx, currentStateSnapshotNID,
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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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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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// get the auth event IDs for the current state events
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var authEventIDs []string
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for _, se := range stateEvents {
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authEventIDs = append(authEventIDs, se.AuthEventIDs()...)
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}
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authEventIDs = util.UniqueStrings(authEventIDs) // de-dupe
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authEvents, err := query.GetAuthChain(ctx, r.DB.EventsFromIDs, 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 stateEvents {
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response.StateEvents = append(response.StateEvents, event.Headered(info.RoomVersion))
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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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err = r.Inputer.WriteOutputEvents(request.RoomID, []api.OutputEvent{
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{
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Type: api.OutputTypeNewInboundPeek,
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NewInboundPeek: &api.OutputNewInboundPeek{
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RoomID: request.RoomID,
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PeekID: request.PeekID,
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LatestEventID: latestEvents[0].EventID(),
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ServerName: request.ServerName,
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RenewalInterval: request.RenewalInterval,
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},
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},
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})
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return err
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}
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