dendrite/syncapi/consumers/clientapi.go
Neil Alexander b5a8935042
Sync refactor — Part 1 (#1688)
* It's half-alive

* Wakeups largely working

* Other tweaks, typing works

* Fix bugs, add receipt stream

* Delete notifier, other tweaks

* Dedupe a bit, add a template for the invite stream

* Clean up, add templates for other streams

* Don't leak channels

* Bring forward some more PDU logic, clean up other places

* Add some more wakeups

* Use addRoomDeltaToResponse

* Log tweaks, typing fixed?

* Fix timed out syncs

* Don't reset next batch position on timeout

* Add account data stream/position

* End of day

* Fix complete sync for receipt, typing

* Streams package

* Clean up a bit

* Complete sync send-to-device

* Don't drop errors

* More lightweight notifications

* Fix typing positions

* Don't advance position on remove again unless needed

* Device list updates

* Advance account data position

* Use limit for incremental sync

* Limit fixes, amongst other things

* Remove some fmt.Println

* Tweaks

* Re-add notifier

* Fix invite position

* Fixes

* Notify account data without advancing PDU position in notifier

* Apply account data position

* Get initial position for account data

* Fix position update

* Fix complete sync positions

* Review comments @Kegsay

* Room consumer parameters
2021-01-08 16:59:06 +00:00

103 lines
3.3 KiB
Go

// Copyright 2017 Vector Creations Ltd
//
// 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 (
"context"
"encoding/json"
"github.com/Shopify/sarama"
"github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/internal/eventutil"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/syncapi/notifier"
"github.com/matrix-org/dendrite/syncapi/storage"
"github.com/matrix-org/dendrite/syncapi/types"
log "github.com/sirupsen/logrus"
)
// OutputClientDataConsumer consumes events that originated in the client API server.
type OutputClientDataConsumer struct {
clientAPIConsumer *internal.ContinualConsumer
db storage.Database
stream types.StreamProvider
notifier *notifier.Notifier
}
// NewOutputClientDataConsumer creates a new OutputClientData consumer. Call Start() to begin consuming from room servers.
func NewOutputClientDataConsumer(
cfg *config.SyncAPI,
kafkaConsumer sarama.Consumer,
store storage.Database,
notifier *notifier.Notifier,
stream types.StreamProvider,
) *OutputClientDataConsumer {
consumer := internal.ContinualConsumer{
ComponentName: "syncapi/clientapi",
Topic: string(cfg.Matrix.Kafka.TopicFor(config.TopicOutputClientData)),
Consumer: kafkaConsumer,
PartitionStore: store,
}
s := &OutputClientDataConsumer{
clientAPIConsumer: &consumer,
db: store,
notifier: notifier,
stream: stream,
}
consumer.ProcessMessage = s.onMessage
return s
}
// Start consuming from room servers
func (s *OutputClientDataConsumer) Start() error {
return s.clientAPIConsumer.Start()
}
// onMessage is called when the sync server receives a new event from the client API server output log.
// It is not safe for this function to be called from multiple goroutines, or else the
// sync stream position may race and be incorrectly calculated.
func (s *OutputClientDataConsumer) onMessage(msg *sarama.ConsumerMessage) error {
// Parse out the event JSON
var output eventutil.AccountData
if err := json.Unmarshal(msg.Value, &output); err != nil {
// If the message was invalid, log it and move on to the next message in the stream
log.WithError(err).Errorf("client API server output log: message parse failure")
return nil
}
log.WithFields(log.Fields{
"type": output.Type,
"room_id": output.RoomID,
}).Info("received data from client API server")
streamPos, err := s.db.UpsertAccountData(
context.TODO(), string(msg.Key), output.RoomID, output.Type,
)
if err != nil {
log.WithFields(log.Fields{
"type": output.Type,
"room_id": output.RoomID,
log.ErrorKey: err,
}).Panicf("could not save account data")
}
s.stream.Advance(streamPos)
s.notifier.OnNewAccountData(string(msg.Key), types.StreamingToken{AccountDataPosition: streamPos})
return nil
}