mirror of
https://github.com/element-hq/dendrite.git
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154 lines
4.4 KiB
Go
154 lines
4.4 KiB
Go
// Copyright 2024 New Vector Ltd.
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// Copyright 2017 Vector Creations Ltd
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//
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// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
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// Please see LICENSE files in the repository root for full details.
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package producers
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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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"strconv"
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"time"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/gomatrixserverlib/spec"
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"github.com/nats-io/nats.go"
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log "github.com/sirupsen/logrus"
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"github.com/element-hq/dendrite/setup/jetstream"
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"github.com/element-hq/dendrite/syncapi/types"
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userapi "github.com/element-hq/dendrite/userapi/api"
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)
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// SyncAPIProducer produces events for the sync API server to consume
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type SyncAPIProducer struct {
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TopicReceiptEvent string
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TopicSendToDeviceEvent string
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TopicTypingEvent string
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TopicPresenceEvent string
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JetStream nats.JetStreamContext
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ServerName spec.ServerName
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UserAPI userapi.ClientUserAPI
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}
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func (p *SyncAPIProducer) SendReceipt(
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ctx context.Context,
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userID, roomID, eventID, receiptType string, timestamp spec.Timestamp,
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) error {
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m := &nats.Msg{
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Subject: p.TopicReceiptEvent,
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Header: nats.Header{},
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}
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m.Header.Set(jetstream.UserID, userID)
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m.Header.Set(jetstream.RoomID, roomID)
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m.Header.Set(jetstream.EventID, eventID)
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m.Header.Set("type", receiptType)
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m.Header.Set("timestamp", fmt.Sprintf("%d", timestamp))
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log.WithFields(log.Fields{}).Tracef("Producing to topic '%s'", p.TopicReceiptEvent)
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_, err := p.JetStream.PublishMsg(m, nats.Context(ctx))
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return err
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}
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func (p *SyncAPIProducer) SendToDevice(
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ctx context.Context, sender, userID, deviceID, eventType string,
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message json.RawMessage,
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) error {
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devices := []string{}
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_, domain, err := gomatrixserverlib.SplitID('@', userID)
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if err != nil {
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return err
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}
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// If the event is targeted locally then we want to expand the wildcard
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// out into individual device IDs so that we can send them to each respective
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// device. If the event isn't targeted locally then we can't expand the
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// wildcard as we don't know about the remote devices, so instead we leave it
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// as-is, so that the federation sender can send it on with the wildcard intact.
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if domain == p.ServerName && deviceID == "*" {
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var res userapi.QueryDevicesResponse
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err = p.UserAPI.QueryDevices(context.TODO(), &userapi.QueryDevicesRequest{
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UserID: userID,
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}, &res)
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if err != nil {
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return err
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}
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for _, dev := range res.Devices {
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devices = append(devices, dev.ID)
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}
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} else {
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devices = append(devices, deviceID)
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}
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log.WithFields(log.Fields{
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"user_id": userID,
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"num_devices": len(devices),
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"type": eventType,
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}).Tracef("Producing to topic '%s'", p.TopicSendToDeviceEvent)
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for i, device := range devices {
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ote := &types.OutputSendToDeviceEvent{
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UserID: userID,
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DeviceID: device,
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SendToDeviceEvent: gomatrixserverlib.SendToDeviceEvent{
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Sender: sender,
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Type: eventType,
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Content: message,
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},
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}
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eventJSON, err := json.Marshal(ote)
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if err != nil {
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log.WithError(err).Error("sendToDevice failed json.Marshal")
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return err
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}
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m := nats.NewMsg(p.TopicSendToDeviceEvent)
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m.Data = eventJSON
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m.Header.Set("sender", sender)
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m.Header.Set(jetstream.UserID, userID)
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if _, err = p.JetStream.PublishMsg(m, nats.Context(ctx)); err != nil {
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if i < len(devices)-1 {
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log.WithError(err).Warn("sendToDevice failed to PublishMsg, trying further devices")
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continue
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}
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log.WithError(err).Error("sendToDevice failed to PublishMsg for all devices")
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return err
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}
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}
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return nil
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}
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func (p *SyncAPIProducer) SendTyping(
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ctx context.Context, userID, roomID string, typing bool, timeoutMS int64,
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) error {
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m := &nats.Msg{
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Subject: p.TopicTypingEvent,
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Header: nats.Header{},
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}
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m.Header.Set(jetstream.UserID, userID)
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m.Header.Set(jetstream.RoomID, roomID)
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m.Header.Set("typing", strconv.FormatBool(typing))
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m.Header.Set("timeout_ms", strconv.Itoa(int(timeoutMS)))
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_, err := p.JetStream.PublishMsg(m, nats.Context(ctx))
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return err
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}
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func (p *SyncAPIProducer) SendPresence(
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ctx context.Context, userID string, presence types.Presence, statusMsg *string,
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) error {
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m := nats.NewMsg(p.TopicPresenceEvent)
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m.Header.Set(jetstream.UserID, userID)
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m.Header.Set("presence", presence.String())
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if statusMsg != nil {
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m.Header.Set("status_msg", *statusMsg)
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}
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m.Header.Set("last_active_ts", strconv.Itoa(int(spec.AsTimestamp(time.Now()))))
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_, err := p.JetStream.PublishMsg(m, nats.Context(ctx))
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return err
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}
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