mirror of
https://github.com/hoernschen/dendrite.git
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use go module for dependencies (#594)
This commit is contained in:
ruben
Brendan Abolivier
parent
4d588f7008
commit
74827428bd
6109 changed files with 216 additions and 1114821 deletions
95
syncapi/consumers/clientapi.go
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95
syncapi/consumers/clientapi.go
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// Copyright 2017 Vector Creations Ltd
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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/matrix-org/dendrite/common"
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"github.com/matrix-org/dendrite/common/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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log "github.com/sirupsen/logrus"
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sarama "gopkg.in/Shopify/sarama.v1"
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)
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// OutputClientDataConsumer consumes events that originated in the client API server.
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type OutputClientDataConsumer struct {
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clientAPIConsumer *common.ContinualConsumer
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db *storage.SyncServerDatabase
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notifier *sync.Notifier
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}
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// NewOutputClientDataConsumer creates a new OutputClientData consumer. Call Start() to begin consuming from room servers.
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func NewOutputClientDataConsumer(
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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.SyncServerDatabase,
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) *OutputClientDataConsumer {
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consumer := common.ContinualConsumer{
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Topic: string(cfg.Kafka.Topics.OutputClientData),
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Consumer: kafkaConsumer,
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PartitionStore: store,
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}
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s := &OutputClientDataConsumer{
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clientAPIConsumer: &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 room servers
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func (s *OutputClientDataConsumer) Start() error {
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return s.clientAPIConsumer.Start()
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}
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// onMessage is called when the sync server receives a new event from the client API server output log.
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// It is not safe for this function to be called from multiple goroutines, or else the
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// sync stream position may race and be incorrectly calculated.
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func (s *OutputClientDataConsumer) onMessage(msg *sarama.ConsumerMessage) error {
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// Parse out the event JSON
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var output common.AccountData
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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("client API server output log: message parse failure")
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return nil
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}
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log.WithFields(log.Fields{
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"type": output.Type,
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"room_id": output.RoomID,
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}).Info("received data from client API server")
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syncStreamPos, err := s.db.UpsertAccountData(
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context.TODO(), string(msg.Key), output.RoomID, output.Type,
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)
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if err != nil {
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log.WithFields(log.Fields{
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"type": output.Type,
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"room_id": output.RoomID,
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log.ErrorKey: err,
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}).Panicf("could not save account data")
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}
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s.notifier.OnNewEvent(nil, string(msg.Key), syncStreamPos)
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return nil
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}
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286
syncapi/consumers/roomserver.go
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286
syncapi/consumers/roomserver.go
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// Copyright 2017 Vector Creations Ltd
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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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"fmt"
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"github.com/matrix-org/dendrite/common"
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"github.com/matrix-org/dendrite/common/config"
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"github.com/matrix-org/dendrite/roomserver/api"
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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/matrix-org/gomatrixserverlib"
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log "github.com/sirupsen/logrus"
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sarama "gopkg.in/Shopify/sarama.v1"
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)
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// OutputRoomEventConsumer consumes events that originated in the room server.
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type OutputRoomEventConsumer struct {
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roomServerConsumer *common.ContinualConsumer
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db *storage.SyncServerDatabase
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notifier *sync.Notifier
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query api.RoomserverQueryAPI
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}
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// NewOutputRoomEventConsumer creates a new OutputRoomEventConsumer. Call Start() to begin consuming from room servers.
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func NewOutputRoomEventConsumer(
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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.SyncServerDatabase,
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queryAPI api.RoomserverQueryAPI,
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) *OutputRoomEventConsumer {
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consumer := common.ContinualConsumer{
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Topic: string(cfg.Kafka.Topics.OutputRoomEvent),
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Consumer: kafkaConsumer,
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PartitionStore: store,
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}
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s := &OutputRoomEventConsumer{
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roomServerConsumer: &consumer,
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db: store,
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notifier: n,
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query: queryAPI,
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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 room servers
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func (s *OutputRoomEventConsumer) Start() error {
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return s.roomServerConsumer.Start()
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}
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// onMessage is called when the sync server receives a new event from the room server output log.
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// It is not safe for this function to be called from multiple goroutines, or else the
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// sync stream position may race and be incorrectly calculated.
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func (s *OutputRoomEventConsumer) onMessage(msg *sarama.ConsumerMessage) error {
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// Parse out the event JSON
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var output api.OutputEvent
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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("roomserver output log: message parse failure")
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return nil
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}
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switch output.Type {
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case api.OutputTypeNewRoomEvent:
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return s.onNewRoomEvent(context.TODO(), *output.NewRoomEvent)
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case api.OutputTypeNewInviteEvent:
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return s.onNewInviteEvent(context.TODO(), *output.NewInviteEvent)
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case api.OutputTypeRetireInviteEvent:
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return s.onRetireInviteEvent(context.TODO(), *output.RetireInviteEvent)
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default:
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log.WithField("type", output.Type).Debug(
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"roomserver output log: ignoring unknown output type",
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)
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return nil
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}
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}
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func (s *OutputRoomEventConsumer) onNewRoomEvent(
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ctx context.Context, msg api.OutputNewRoomEvent,
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) error {
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ev := msg.Event
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log.WithFields(log.Fields{
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"event_id": ev.EventID(),
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"room_id": ev.RoomID(),
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}).Info("received event from roomserver")
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addsStateEvents, err := s.lookupStateEvents(msg.AddsStateEventIDs, ev)
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if err != nil {
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log.WithFields(log.Fields{
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"event": string(ev.JSON()),
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log.ErrorKey: err,
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"add": msg.AddsStateEventIDs,
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"del": msg.RemovesStateEventIDs,
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}).Panicf("roomserver output log: state event lookup failure")
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}
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ev, err = s.updateStateEvent(ev)
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if err != nil {
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return err
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}
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for i := range addsStateEvents {
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addsStateEvents[i], err = s.updateStateEvent(addsStateEvents[i])
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if err != nil {
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return err
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}
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}
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syncStreamPos, err := s.db.WriteEvent(
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ctx,
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&ev,
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addsStateEvents,
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msg.AddsStateEventIDs,
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msg.RemovesStateEventIDs,
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msg.TransactionID,
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)
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if err != nil {
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return err
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}
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if err != nil {
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// panic rather than continue with an inconsistent database
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log.WithFields(log.Fields{
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"event": string(ev.JSON()),
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log.ErrorKey: err,
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"add": msg.AddsStateEventIDs,
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"del": msg.RemovesStateEventIDs,
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}).Panicf("roomserver output log: write event failure")
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return nil
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}
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s.notifier.OnNewEvent(&ev, "", types.StreamPosition(syncStreamPos))
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return nil
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}
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func (s *OutputRoomEventConsumer) onNewInviteEvent(
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ctx context.Context, msg api.OutputNewInviteEvent,
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) error {
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syncStreamPos, err := s.db.AddInviteEvent(ctx, msg.Event)
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if err != nil {
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// panic rather than continue with an inconsistent database
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log.WithFields(log.Fields{
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"event": string(msg.Event.JSON()),
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log.ErrorKey: err,
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}).Panicf("roomserver output log: write invite failure")
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return nil
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}
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s.notifier.OnNewEvent(&msg.Event, "", syncStreamPos)
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return nil
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}
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func (s *OutputRoomEventConsumer) onRetireInviteEvent(
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ctx context.Context, msg api.OutputRetireInviteEvent,
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) error {
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err := s.db.RetireInviteEvent(ctx, msg.EventID)
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if err != nil {
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// panic rather than continue with an inconsistent database
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log.WithFields(log.Fields{
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"event_id": msg.EventID,
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log.ErrorKey: err,
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}).Panicf("roomserver output log: remove invite failure")
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return nil
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}
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// TODO: Notify any active sync requests that the invite has been retired.
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// s.notifier.OnNewEvent(nil, msg.TargetUserID, syncStreamPos)
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return nil
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}
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// lookupStateEvents looks up the state events that are added by a new event.
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func (s *OutputRoomEventConsumer) lookupStateEvents(
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addsStateEventIDs []string, event gomatrixserverlib.Event,
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) ([]gomatrixserverlib.Event, error) {
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// Fast path if there aren't any new state events.
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if len(addsStateEventIDs) == 0 {
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return nil, nil
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}
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// Fast path if the only state event added is the event itself.
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if len(addsStateEventIDs) == 1 && addsStateEventIDs[0] == event.EventID() {
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return []gomatrixserverlib.Event{event}, nil
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}
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// Check if this is re-adding a state events that we previously processed
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// If we have previously received a state event it may still be in
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// our event database.
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result, err := s.db.Events(context.TODO(), addsStateEventIDs)
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if err != nil {
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return nil, err
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}
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missing := missingEventsFrom(result, addsStateEventIDs)
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// Check if event itself is being added.
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for _, eventID := range missing {
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if eventID == event.EventID() {
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result = append(result, event)
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break
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}
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}
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missing = missingEventsFrom(result, addsStateEventIDs)
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if len(missing) == 0 {
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return result, nil
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}
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// At this point the missing events are neither the event itself nor are
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// they present in our local database. Our only option is to fetch them
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// from the roomserver using the query API.
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eventReq := api.QueryEventsByIDRequest{EventIDs: missing}
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var eventResp api.QueryEventsByIDResponse
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if err := s.query.QueryEventsByID(context.TODO(), &eventReq, &eventResp); err != nil {
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return nil, err
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}
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result = append(result, eventResp.Events...)
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missing = missingEventsFrom(result, addsStateEventIDs)
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if len(missing) != 0 {
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return nil, fmt.Errorf(
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"missing %d state events IDs at event %q", len(missing), event.EventID(),
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)
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}
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return result, nil
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}
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func (s *OutputRoomEventConsumer) updateStateEvent(event gomatrixserverlib.Event) (gomatrixserverlib.Event, error) {
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var stateKey string
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if event.StateKey() == nil {
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stateKey = ""
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} else {
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stateKey = *event.StateKey()
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}
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prevEvent, err := s.db.GetStateEvent(
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context.TODO(), event.Type(), event.RoomID(), stateKey,
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)
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if err != nil {
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return event, err
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}
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if prevEvent == nil {
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return event, nil
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}
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prev := types.PrevEventRef{
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PrevContent: prevEvent.Content(),
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ReplacesState: prevEvent.EventID(),
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PrevSender: prevEvent.Sender(),
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}
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return event.SetUnsigned(prev)
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}
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func missingEventsFrom(events []gomatrixserverlib.Event, required []string) []string {
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have := map[string]bool{}
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for _, event := range events {
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have[event.EventID()] = true
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}
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var missing []string
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for _, eventID := range required {
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if !have[eventID] {
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missing = append(missing, eventID)
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}
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}
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return missing
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}
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