mirror of
https://github.com/matrix-org/dendrite.git
synced 2024-11-30 10:11:56 -06:00
116 lines
3.5 KiB
Go
116 lines
3.5 KiB
Go
// 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 rooms
|
|
|
|
import (
|
|
"context"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/matrix-org/dendrite/federationsender/api"
|
|
"github.com/matrix-org/gomatrixserverlib"
|
|
"github.com/matrix-org/util"
|
|
|
|
pineconeRouter "github.com/matrix-org/pinecone/router"
|
|
pineconeSessions "github.com/matrix-org/pinecone/sessions"
|
|
)
|
|
|
|
type PineconeRoomProvider struct {
|
|
r *pineconeRouter.Router
|
|
s *pineconeSessions.Sessions
|
|
fedSender api.FederationSenderInternalAPI
|
|
fedClient *gomatrixserverlib.FederationClient
|
|
}
|
|
|
|
func NewPineconeRoomProvider(
|
|
r *pineconeRouter.Router,
|
|
s *pineconeSessions.Sessions,
|
|
fedSender api.FederationSenderInternalAPI,
|
|
fedClient *gomatrixserverlib.FederationClient,
|
|
) *PineconeRoomProvider {
|
|
p := &PineconeRoomProvider{
|
|
r: r,
|
|
s: s,
|
|
fedSender: fedSender,
|
|
fedClient: fedClient,
|
|
}
|
|
return p
|
|
}
|
|
|
|
func (p *PineconeRoomProvider) Rooms() []gomatrixserverlib.PublicRoom {
|
|
list := []gomatrixserverlib.ServerName{}
|
|
for _, k := range p.r.Peers() {
|
|
list = append(list, gomatrixserverlib.ServerName(k.PublicKey))
|
|
}
|
|
return bulkFetchPublicRoomsFromServers(context.Background(), p.fedClient, list)
|
|
}
|
|
|
|
// bulkFetchPublicRoomsFromServers fetches public rooms from the list of homeservers.
|
|
// Returns a list of public rooms.
|
|
func bulkFetchPublicRoomsFromServers(
|
|
ctx context.Context, fedClient *gomatrixserverlib.FederationClient,
|
|
homeservers []gomatrixserverlib.ServerName,
|
|
) (publicRooms []gomatrixserverlib.PublicRoom) {
|
|
limit := 200
|
|
// follow pipeline semantics, see https://blog.golang.org/pipelines for more info.
|
|
// goroutines send rooms to this channel
|
|
roomCh := make(chan gomatrixserverlib.PublicRoom, int(limit))
|
|
// signalling channel to tell goroutines to stop sending rooms and quit
|
|
done := make(chan bool)
|
|
// signalling to say when we can close the room channel
|
|
var wg sync.WaitGroup
|
|
wg.Add(len(homeservers))
|
|
// concurrently query for public rooms
|
|
reqctx, reqcancel := context.WithTimeout(ctx, time.Second*5)
|
|
for _, hs := range homeservers {
|
|
go func(homeserverDomain gomatrixserverlib.ServerName) {
|
|
defer wg.Done()
|
|
util.GetLogger(reqctx).WithField("hs", homeserverDomain).Info("Querying HS for public rooms")
|
|
fres, err := fedClient.GetPublicRooms(reqctx, homeserverDomain, int(limit), "", false, "")
|
|
if err != nil {
|
|
util.GetLogger(reqctx).WithError(err).WithField("hs", homeserverDomain).Warn(
|
|
"bulkFetchPublicRoomsFromServers: failed to query hs",
|
|
)
|
|
return
|
|
}
|
|
for _, room := range fres.Chunk {
|
|
// atomically send a room or stop
|
|
select {
|
|
case roomCh <- room:
|
|
case <-done:
|
|
case <-reqctx.Done():
|
|
util.GetLogger(reqctx).WithError(err).WithField("hs", homeserverDomain).Info("Interrupted whilst sending rooms")
|
|
return
|
|
}
|
|
}
|
|
}(hs)
|
|
}
|
|
|
|
select {
|
|
case <-time.After(5 * time.Second):
|
|
default:
|
|
wg.Wait()
|
|
}
|
|
reqcancel()
|
|
close(done)
|
|
close(roomCh)
|
|
|
|
for room := range roomCh {
|
|
publicRooms = append(publicRooms, room)
|
|
}
|
|
|
|
return publicRooms
|
|
}
|