mirror of
https://github.com/matrix-org/dendrite.git
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101 lines
3.1 KiB
Go
101 lines
3.1 KiB
Go
// Copyright 2019 Alex Chen
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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 consumers
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import (
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"context"
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"encoding/json"
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"github.com/Shopify/sarama"
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"github.com/matrix-org/dendrite/eduserver/api"
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"github.com/matrix-org/dendrite/internal"
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"github.com/matrix-org/dendrite/internal/config"
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"github.com/matrix-org/dendrite/syncapi/storage"
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"github.com/matrix-org/dendrite/syncapi/sync"
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"github.com/matrix-org/dendrite/syncapi/types"
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"github.com/sirupsen/logrus"
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log "github.com/sirupsen/logrus"
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)
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// OutputSendToDeviceEventConsumer consumes events that originated in the EDU server.
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type OutputSendToDeviceEventConsumer struct {
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sendToDeviceConsumer *internal.ContinualConsumer
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db storage.Database
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notifier *sync.Notifier
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}
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// NewOutputSendToDeviceEventConsumer creates a new OutputSendToDeviceEventConsumer.
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// Call Start() to begin consuming from the EDU server.
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func NewOutputSendToDeviceEventConsumer(
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cfg *config.Dendrite,
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kafkaConsumer sarama.Consumer,
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n *sync.Notifier,
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store storage.Database,
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) *OutputSendToDeviceEventConsumer {
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consumer := internal.ContinualConsumer{
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Topic: string(cfg.Kafka.Topics.OutputSendToDeviceEventTopic),
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Consumer: kafkaConsumer,
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PartitionStore: store,
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}
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s := &OutputSendToDeviceEventConsumer{
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sendToDeviceConsumer: &consumer,
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db: store,
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notifier: n,
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}
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consumer.ProcessMessage = s.onMessage
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return s
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}
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// Start consuming from EDU api
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func (s *OutputSendToDeviceEventConsumer) Start() error {
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logrus.Info("syncapi starting sendToDevice consumer")
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return s.sendToDeviceConsumer.Start()
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}
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func (s *OutputSendToDeviceEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
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logrus.Info("syncapi received sendToDevice event")
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var output api.OutputSendToDeviceEvent
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if err := json.Unmarshal(msg.Value, &output); err != nil {
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// If the message was invalid, log it and move on to the next message in the stream
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log.WithError(err).Errorf("EDU server output log: message parse failure")
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return err
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}
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log.WithFields(log.Fields{
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"user_id": output.UserID,
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"device_id": output.DeviceID,
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"event_type": output.EventType,
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}).Debug("received send-to-device event from EDU server")
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newPos, err := s.db.StoreNewSendForDeviceMessage(context.TODO(), output.SendToDeviceEvent)
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if err != nil {
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log.WithError(err).Errorf("failed to store send-to-device message")
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return err
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}
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s.notifier.OnNewSendToDevice(
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output.UserID,
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[]string{output.DeviceID}, // TODO: support wildcard here as per spec
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types.NewStreamToken(0, newPos),
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)
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return nil
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}
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