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c773b038bb
* Pull consumers * Pull consumers * Only nuke consumers if they are push consumers * Clean up old consumers * Better error handling * Update comments
100 lines
3.0 KiB
Go
100 lines
3.0 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/nats-io/nats.go"
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log "github.com/sirupsen/logrus"
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)
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// OutputReceiptEventConsumer consumes events that originated in the EDU server.
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type OutputReceiptEventConsumer struct {
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ctx context.Context
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jetstream nats.JetStreamContext
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durable string
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topic string
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db storage.Database
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stream types.StreamProvider
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notifier *notifier.Notifier
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}
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// NewOutputReceiptEventConsumer creates a new OutputReceiptEventConsumer.
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// Call Start() to begin consuming from the EDU server.
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func NewOutputReceiptEventConsumer(
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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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) *OutputReceiptEventConsumer {
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return &OutputReceiptEventConsumer{
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ctx: process.Context(),
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jetstream: js,
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topic: cfg.Matrix.JetStream.TopicFor(jetstream.OutputReceiptEvent),
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durable: cfg.Matrix.JetStream.Durable("SyncAPIEDUServerReceiptConsumer"),
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db: store,
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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 *OutputReceiptEventConsumer) Start() error {
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return jetstream.JetStreamConsumer(
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s.ctx, s.jetstream, s.topic, s.durable, s.onMessage,
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nats.DeliverAll(), nats.ManualAck(),
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)
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}
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func (s *OutputReceiptEventConsumer) onMessage(ctx context.Context, msg *nats.Msg) bool {
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var output api.OutputReceiptEvent
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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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return true
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}
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streamPos, err := s.db.StoreReceipt(
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s.ctx,
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output.RoomID,
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output.Type,
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output.UserID,
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output.EventID,
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output.Timestamp,
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)
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if err != nil {
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sentry.CaptureException(err)
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return true
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}
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s.stream.Advance(streamPos)
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s.notifier.OnNewReceipt(output.RoomID, types.StreamingToken{ReceiptPosition: streamPos})
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return true
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}
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