0
0
Fork 0
mirror of https://github.com/matrix-org/dendrite synced 2024-12-16 12:33:41 +01:00
dendrite/syncapi/consumers/eduserver_typing.go
2021-11-03 14:31:24 +00:00

97 lines
3.1 KiB
Go

// Copyright 2019 Alex Chen
//
// 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 consumers
import (
"encoding/json"
"github.com/getsentry/sentry-go"
"github.com/matrix-org/dendrite/eduserver/api"
"github.com/matrix-org/dendrite/eduserver/cache"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/setup/jetstream"
"github.com/matrix-org/dendrite/setup/process"
"github.com/matrix-org/dendrite/syncapi/notifier"
"github.com/matrix-org/dendrite/syncapi/storage"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/nats-io/nats.go"
log "github.com/sirupsen/logrus"
)
// OutputTypingEventConsumer consumes events that originated in the EDU server.
type OutputTypingEventConsumer struct {
jetstream nats.JetStreamContext
topic string
eduCache *cache.EDUCache
stream types.StreamProvider
notifier *notifier.Notifier
}
// NewOutputTypingEventConsumer creates a new OutputTypingEventConsumer.
// Call Start() to begin consuming from the EDU server.
func NewOutputTypingEventConsumer(
process *process.ProcessContext,
cfg *config.SyncAPI,
js nats.JetStreamContext,
store storage.Database,
eduCache *cache.EDUCache,
notifier *notifier.Notifier,
stream types.StreamProvider,
) *OutputTypingEventConsumer {
return &OutputTypingEventConsumer{
jetstream: js,
topic: cfg.Matrix.JetStream.TopicFor(jetstream.OutputTypingEvent),
eduCache: eduCache,
notifier: notifier,
stream: stream,
}
}
// Start consuming from EDU api
func (s *OutputTypingEventConsumer) Start() error {
_, err := s.jetstream.Subscribe(s.topic, s.onMessage)
return err
}
func (s *OutputTypingEventConsumer) onMessage(msg *nats.Msg) {
var output api.OutputTypingEvent
if err := json.Unmarshal(msg.Data, &output); err != nil {
// If the message was invalid, log it and move on to the next message in the stream
log.WithError(err).Errorf("EDU server output log: message parse failure")
sentry.CaptureException(err)
return
}
log.WithFields(log.Fields{
"room_id": output.Event.RoomID,
"user_id": output.Event.UserID,
"typing": output.Event.Typing,
}).Debug("received data from EDU server")
var typingPos types.StreamPosition
typingEvent := output.Event
if typingEvent.Typing {
typingPos = types.StreamPosition(
s.eduCache.AddTypingUser(typingEvent.UserID, typingEvent.RoomID, output.ExpireTime),
)
} else {
typingPos = types.StreamPosition(
s.eduCache.RemoveUser(typingEvent.UserID, typingEvent.RoomID),
)
}
s.stream.Advance(typingPos)
s.notifier.OnNewTyping(output.Event.RoomID, types.StreamingToken{TypingPosition: typingPos})
}