mirror of
https://github.com/1f349/dendrite.git
synced 2024-11-10 06:53:00 +00:00
1002e87b60
* Pinecone demo * Enable multicast, fix HTTP routing * Fix multicast import * Fix build * Update Pinecone demo * Fix the keys * Tweaks * Pinecone room directory support (early) * Fix gobind-pinecone * Add pinecone listener * Fix public key value * Use AuthenticatedConnect for dial * Fix gobind-pinecone * Stop panics * Give fsAPI to keyserver * Pinecone demo fixes * Update gobind build scripts * Account creation * Tweaks * Setup tweaks * API tweaks * API tweaks * API tweaks * Port mutex * Re-enable multicast * Add ReadCopy * Update quic-go, fixes * Shutdowns fixed for iOS * Update build script * Add WebSocket support * Bug fixes * Netconn context * Fix WebSocket connectivity * Fixes to gobind API * Strip frameworks * Configurability updates * Update go.mod * Update go.mod/go.sum * Update go.mod/go.sum * Update go.mod/go.sum * Try to stay connected tto static peer * Update gobind-pinecone * Update go.mod/go.sum * Test uTP+TLS * Use HTTP/2 * Don't use HTTP/2 * Update go.mod/go.sum * Attempt to reconnect to the static peer if it drops * Stay connected to static peers more stickily * Retry room directory lookups if they fail * NewQUIC -> NewSessions * Storage updates * Don't return immediately when there's nothing to sync * Updates * Try to reconnect to static peer more * Update go.mod/go.sum * Require Go 1.14 * Update go.mod/go.sum * Update go.mod/go.sum
151 lines
4.7 KiB
Go
151 lines
4.7 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 rooms
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import (
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"context"
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"crypto/ed25519"
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"encoding/hex"
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"sync"
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"time"
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"github.com/matrix-org/dendrite/federationsender/api"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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pineconeRouter "github.com/matrix-org/pinecone/router"
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pineconeSessions "github.com/matrix-org/pinecone/sessions"
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)
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const pineconeRoomAttempts = 3
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type PineconeRoomProvider struct {
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r *pineconeRouter.Router
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s *pineconeSessions.Sessions
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fedSender api.FederationSenderInternalAPI
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fedClient *gomatrixserverlib.FederationClient
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}
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func NewPineconeRoomProvider(
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r *pineconeRouter.Router,
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s *pineconeSessions.Sessions,
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fedSender api.FederationSenderInternalAPI,
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fedClient *gomatrixserverlib.FederationClient,
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) *PineconeRoomProvider {
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p := &PineconeRoomProvider{
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r: r,
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s: s,
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fedSender: fedSender,
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fedClient: fedClient,
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}
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return p
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}
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func (p *PineconeRoomProvider) Rooms() []gomatrixserverlib.PublicRoom {
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known := []ed25519.PublicKey{}
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for _, k := range p.r.KnownNodes() {
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known = append(known, k[:])
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}
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known = append(known, p.s.Sessions()...)
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list := []gomatrixserverlib.ServerName{}
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for _, k := range known {
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if len(k) == ed25519.PublicKeySize {
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list = append(list, gomatrixserverlib.ServerName(hex.EncodeToString(k)))
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}
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}
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return bulkFetchPublicRoomsFromServers(context.Background(), p.fedClient, list)
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}
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// bulkFetchPublicRoomsFromServers fetches public rooms from the list of homeservers.
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// Returns a list of public rooms.
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func bulkFetchPublicRoomsFromServers(
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ctx context.Context, fedClient *gomatrixserverlib.FederationClient,
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homeservers []gomatrixserverlib.ServerName,
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) (publicRooms []gomatrixserverlib.PublicRoom) {
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limit := 200
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// follow pipeline semantics, see https://blog.golang.org/pipelines for more info.
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// goroutines send rooms to this channel
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roomCh := make(chan gomatrixserverlib.PublicRoom, int(limit))
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// signalling channel to tell goroutines to stop sending rooms and quit
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done := make(chan bool)
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// signalling to say when we can close the room channel
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var wg sync.WaitGroup
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wg.Add(len(homeservers))
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// concurrently query for public rooms
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for _, hs := range homeservers {
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go func(homeserverDomain gomatrixserverlib.ServerName) {
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defer wg.Done()
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util.GetLogger(ctx).WithField("hs", homeserverDomain).Info("Querying HS for public rooms")
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var fres gomatrixserverlib.RespPublicRooms
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var err error
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for i := 0; i < pineconeRoomAttempts; i++ {
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fres, err = fedClient.GetPublicRooms(ctx, homeserverDomain, int(limit), "", false, "")
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if err != nil {
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util.GetLogger(ctx).WithError(err).WithField("hs", homeserverDomain).Warn(
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"bulkFetchPublicRoomsFromServers: failed to query hs",
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)
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if i == pineconeRoomAttempts-1 {
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return
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}
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} else {
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break
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}
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}
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for _, room := range fres.Chunk {
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// atomically send a room or stop
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select {
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case roomCh <- room:
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case <-done:
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util.GetLogger(ctx).WithError(err).WithField("hs", homeserverDomain).Info("Interrupted whilst sending rooms")
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return
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}
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}
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}(hs)
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}
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// Close the room channel when the goroutines have quit so we don't leak, but don't let it stop the in-flight request.
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// This also allows the request to fail fast if all HSes experience errors as it will cause the room channel to be
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// closed.
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go func() {
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wg.Wait()
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util.GetLogger(ctx).Info("Cleaning up resources")
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close(roomCh)
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}()
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// fan-in results with timeout. We stop when we reach the limit.
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FanIn:
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for len(publicRooms) < int(limit) || limit == 0 {
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// add a room or timeout
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select {
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case room, ok := <-roomCh:
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if !ok {
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util.GetLogger(ctx).Info("All homeservers have been queried, returning results.")
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break FanIn
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}
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publicRooms = append(publicRooms, room)
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case <-time.After(5 * time.Second): // we've waited long enough, let's tell the client what we got.
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util.GetLogger(ctx).Info("Waited 5s for federated public rooms, returning early")
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break FanIn
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case <-ctx.Done(): // the client hung up on us, let's stop.
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util.GetLogger(ctx).Info("Client hung up, returning early")
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break FanIn
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}
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}
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// tell goroutines to stop
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close(done)
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return publicRooms
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}
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