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// Copyright 2022 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 consumers
import (
"context"
"github.com/matrix-org/gomatrixserverlib"
"github.com/nats-io/nats.go"
log "github.com/sirupsen/logrus"
"github.com/matrix-org/dendrite/internal/pushgateway"
"github.com/matrix-org/dendrite/userapi/storage"
"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/userapi/producers"
"github.com/matrix-org/dendrite/userapi/util"
)
// OutputReceiptEventConsumer consumes events that originated in the clientAPI.
type OutputReceiptEventConsumer struct {
ctx context.Context
jetstream nats.JetStreamContext
durable string
topic string
db storage.Database
serverName gomatrixserverlib.ServerName
syncProducer *producers.SyncAPI
pgClient pushgateway.Client
}
// NewOutputReceiptEventConsumer creates a new OutputReceiptEventConsumer.
// Call Start() to begin consuming from the EDU server.
func NewOutputReceiptEventConsumer(
process *process.ProcessContext,
cfg *config.UserAPI,
js nats.JetStreamContext,
store storage.Database,
syncProducer *producers.SyncAPI,
pgClient pushgateway.Client,
) *OutputReceiptEventConsumer {
return &OutputReceiptEventConsumer{
ctx: process.Context(),
jetstream: js,
topic: cfg.Matrix.JetStream.Prefixed(jetstream.OutputReceiptEvent),
durable: cfg.Matrix.JetStream.Durable("UserAPIReceiptConsumer"),
db: store,
serverName: cfg.Matrix.ServerName,
syncProducer: syncProducer,
pgClient: pgClient,
}
}
// Start consuming receipts events.
func (s *OutputReceiptEventConsumer) Start() error {
return jetstream.JetStreamConsumer(
s.ctx, s.jetstream, s.topic, s.durable, 1,
s.onMessage, nats.DeliverAll(), nats.ManualAck(),
)
}
func (s *OutputReceiptEventConsumer) onMessage(ctx context.Context, msgs []*nats.Msg) bool {
msg := msgs[0] // Guaranteed to exist if onMessage is called
userID := msg.Header.Get(jetstream.UserID)
roomID := msg.Header.Get(jetstream.RoomID)
readPos := msg.Header.Get(jetstream.EventID)
evType := msg.Header.Get("type")
if readPos == "" || (evType != "m.read" && evType != "m.read.private") {
return true
}
log := log.WithFields(log.Fields{
"room_id": roomID,
"user_id": userID,
})
localpart, domain, err := gomatrixserverlib.SplitID('@', userID)
if err != nil {
log.WithError(err).Error("userapi clientapi consumer: SplitID failure")
return true
}
if domain != s.serverName {
return true
}
metadata, err := msg.Metadata()
if err != nil {
return false
}
updated, err := s.db.SetNotificationsRead(ctx, localpart, roomID, uint64(gomatrixserverlib.AsTimestamp(metadata.Timestamp)), true)
if err != nil {
log.WithError(err).Error("userapi EDU consumer")
return false
}
if err = s.syncProducer.GetAndSendNotificationData(ctx, userID, roomID); err != nil {
log.WithError(err).Error("userapi EDU consumer: GetAndSendNotificationData failed")
return false
}
if !updated {
return true
}
if err = util.NotifyUserCountsAsync(ctx, s.pgClient, localpart, s.db); err != nil {
log.WithError(err).Error("userapi EDU consumer: NotifyUserCounts failed")
return false
}
return true
}
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