dendrite/federationapi/consumers/sendtodevice.go
kegsay 72285b2659
refactor: update GMSL (#3058)
Sister PR to https://github.com/matrix-org/gomatrixserverlib/pull/364

Read this commit by commit to avoid going insane.
2023-04-19 15:50:33 +01:00

138 lines
4.6 KiB
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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"
"encoding/json"
"github.com/getsentry/sentry-go"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/gomatrixserverlib/spec"
"github.com/matrix-org/util"
"github.com/nats-io/nats.go"
log "github.com/sirupsen/logrus"
"github.com/matrix-org/dendrite/federationapi/queue"
"github.com/matrix-org/dendrite/federationapi/storage"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/setup/jetstream"
"github.com/matrix-org/dendrite/setup/process"
syncTypes "github.com/matrix-org/dendrite/syncapi/types"
)
// OutputSendToDeviceConsumer consumes events that originate in the clientapi.
type OutputSendToDeviceConsumer struct {
ctx context.Context
jetstream nats.JetStreamContext
durable string
db storage.Database
queues *queue.OutgoingQueues
isLocalServerName func(spec.ServerName) bool
topic string
}
// NewOutputSendToDeviceConsumer creates a new OutputSendToDeviceConsumer. Call Start() to begin consuming send-to-device events.
func NewOutputSendToDeviceConsumer(
process *process.ProcessContext,
cfg *config.FederationAPI,
js nats.JetStreamContext,
queues *queue.OutgoingQueues,
store storage.Database,
) *OutputSendToDeviceConsumer {
return &OutputSendToDeviceConsumer{
ctx: process.Context(),
jetstream: js,
queues: queues,
db: store,
isLocalServerName: cfg.Matrix.IsLocalServerName,
durable: cfg.Matrix.JetStream.Durable("FederationAPIESendToDeviceConsumer"),
topic: cfg.Matrix.JetStream.Prefixed(jetstream.OutputSendToDeviceEvent),
}
}
// Start consuming from the client api
func (t *OutputSendToDeviceConsumer) Start() error {
return jetstream.JetStreamConsumer(
t.ctx, t.jetstream, t.topic, t.durable, 1,
t.onMessage, nats.DeliverAll(), nats.ManualAck(),
)
}
// onMessage is called in response to a message received on the
// send-to-device events topic from the client api.
func (t *OutputSendToDeviceConsumer) onMessage(ctx context.Context, msgs []*nats.Msg) bool {
msg := msgs[0] // Guaranteed to exist if onMessage is called
// only send send-to-device events which originated from us
sender := msg.Header.Get("sender")
_, originServerName, err := gomatrixserverlib.SplitID('@', sender)
if err != nil {
sentry.CaptureException(err)
log.WithError(err).WithField("user_id", sender).Error("Failed to extract domain from send-to-device sender")
return true
}
if !t.isLocalServerName(originServerName) {
return true
}
// Extract the send-to-device event from msg.
var ote syncTypes.OutputSendToDeviceEvent
if err = json.Unmarshal(msg.Data, &ote); err != nil {
sentry.CaptureException(err)
log.WithError(err).Errorf("output log: message parse failed (expected send-to-device)")
return true
}
_, destServerName, err := gomatrixserverlib.SplitID('@', ote.UserID)
if err != nil {
sentry.CaptureException(err)
log.WithError(err).WithField("user_id", ote.UserID).Error("Failed to extract domain from send-to-device destination")
return true
}
// The SyncAPI is already handling sendToDevice for the local server
if t.isLocalServerName(destServerName) {
return true
}
// Pack the EDU and marshal it
edu := &gomatrixserverlib.EDU{
Type: spec.MDirectToDevice,
Origin: string(originServerName),
}
tdm := gomatrixserverlib.ToDeviceMessage{
Sender: ote.Sender,
Type: ote.Type,
MessageID: util.RandomString(32),
Messages: map[string]map[string]json.RawMessage{
ote.UserID: {
ote.DeviceID: ote.Content,
},
},
}
if edu.Content, err = json.Marshal(tdm); err != nil {
sentry.CaptureException(err)
log.WithError(err).Error("failed to marshal EDU JSON")
return true
}
log.Debugf("Sending send-to-device message into %q destination queue", destServerName)
if err := t.queues.SendEDU(edu, originServerName, []spec.ServerName{destServerName}); err != nil {
log.WithError(err).Error("failed to send EDU")
return false
}
return true
}