117 lines
3.5 KiB
Go
117 lines
3.5 KiB
Go
// Copyright 2020 The Matrix.org Foundation C.I.C.
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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/getsentry/sentry-go"
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"github.com/matrix-org/dendrite/eduserver/api"
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"github.com/matrix-org/dendrite/setup/config"
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"github.com/matrix-org/dendrite/setup/jetstream"
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"github.com/matrix-org/dendrite/setup/process"
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"github.com/matrix-org/dendrite/syncapi/notifier"
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"github.com/matrix-org/dendrite/syncapi/storage"
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"github.com/matrix-org/dendrite/syncapi/types"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"github.com/nats-io/nats.go"
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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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jetstream nats.JetStreamContext
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topic string
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db storage.Database
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serverName gomatrixserverlib.ServerName // our server name
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stream types.StreamProvider
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notifier *notifier.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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process *process.ProcessContext,
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cfg *config.SyncAPI,
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js nats.JetStreamContext,
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store storage.Database,
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notifier *notifier.Notifier,
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stream types.StreamProvider,
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) *OutputSendToDeviceEventConsumer {
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return &OutputSendToDeviceEventConsumer{
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jetstream: js,
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topic: cfg.Matrix.JetStream.TopicFor(jetstream.OutputSendToDeviceEvent),
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db: store,
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serverName: cfg.Matrix.ServerName,
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notifier: notifier,
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stream: stream,
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}
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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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_, err := s.jetstream.Subscribe(s.topic, s.onMessage)
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return err
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}
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func (s *OutputSendToDeviceEventConsumer) onMessage(msg *nats.Msg) {
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var output api.OutputSendToDeviceEvent
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if err := json.Unmarshal(msg.Data, &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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sentry.CaptureException(err)
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_ = msg.Nak()
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return
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}
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_, domain, err := gomatrixserverlib.SplitID('@', output.UserID)
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if err != nil {
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sentry.CaptureException(err)
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_ = msg.Nak()
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return
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}
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if domain != s.serverName {
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_ = msg.Nak()
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return
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}
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util.GetLogger(context.TODO()).WithFields(log.Fields{
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"sender": output.Sender,
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"user_id": output.UserID,
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"device_id": output.DeviceID,
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"event_type": output.Type,
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}).Info("sync API received send-to-device event from EDU server")
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streamPos, err := s.db.StoreNewSendForDeviceMessage(
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context.TODO(), output.UserID, output.DeviceID, output.SendToDeviceEvent,
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)
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if err != nil {
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sentry.CaptureException(err)
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log.WithError(err).Errorf("failed to store send-to-device message")
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return
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}
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s.stream.Advance(streamPos)
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s.notifier.OnNewSendToDevice(
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output.UserID,
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[]string{output.DeviceID},
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types.StreamingToken{SendToDevicePosition: streamPos},
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)
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_ = msg.Ack()
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}
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