Remove unused UserUpdates producer (#1109)

4 files changed, 5 insertions, 87 deletions

diff --git a/clientapi/clientapi.go b/clientapi/clientapi.go
index 987815c2..90db9eea 100644
--- a/clientapi/clientapi.go
+++ b/clientapi/clientapi.go
@@ -51,11 +51,6 @@ func AddPublicRoutes(
 	roomserverProducer := producers.NewRoomserverProducer(rsAPI)
 	eduProducer := producers.NewEDUServerProducer(eduInputAPI)
 
-	userUpdateProducer := &producers.UserUpdateProducer{
-		Producer: producer,
-		Topic:    string(cfg.Kafka.Topics.UserUpdates),
-	}
-
 	syncProducer := &producers.SyncAPIProducer{
 		Producer: producer,
 		Topic:    string(cfg.Kafka.Topics.OutputClientData),
@@ -70,7 +65,7 @@ func AddPublicRoutes(
 
 	routing.Setup(
 		router, cfg, roomserverProducer, rsAPI, asAPI,
-		accountsDB, deviceDB, federation, *keyRing, userUpdateProducer,
+		accountsDB, deviceDB, federation, *keyRing,
 		syncProducer, eduProducer, transactionsCache, fsAPI,
 	)
 }
diff --git a/clientapi/producers/userupdate.go b/clientapi/producers/userupdate.go
deleted file mode 100644
index 02e1700f..00000000
--- a/clientapi/producers/userupdate.go
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright 2017 Vector Creations Ltd
-//
-// 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 producers
-
-import (
-	"encoding/json"
-
-	"github.com/Shopify/sarama"
-)
-
-// UserUpdateProducer produces events related to user updates.
-type UserUpdateProducer struct {
-	Topic    string
-	Producer sarama.SyncProducer
-}
-
-// TODO: Move this struct to `internal` so the components that consume the topic
-// can use it when parsing incoming messages
-type profileUpdate struct {
-	Updated  string `json:"updated"`   // Which attribute is updated (can be either `avatar_url` or `displayname`)
-	OldValue string `json:"old_value"` // The attribute's value before the update
-	NewValue string `json:"new_value"` // The attribute's value after the update
-}
-
-// SendUpdate sends an update using kafka to notify the roomserver of the
-// profile update. Returns an error if the update failed to send.
-func (p *UserUpdateProducer) SendUpdate(
-	userID string, updatedAttribute string, oldValue string, newValue string,
-) error {
-	var update profileUpdate
-	var m sarama.ProducerMessage
-
-	m.Topic = string(p.Topic)
-	m.Key = sarama.StringEncoder(userID)
-
-	update = profileUpdate{
-		Updated:  updatedAttribute,
-		OldValue: oldValue,
-		NewValue: newValue,
-	}
-
-	value, err := json.Marshal(update)
-	if err != nil {
-		return err
-	}
-	m.Value = sarama.ByteEncoder(value)
-
-	_, _, err = p.Producer.SendMessage(&m)
-	return err
-}
diff --git a/clientapi/routing/profile.go b/clientapi/routing/profile.go
index dbf6ef1d..c0fe32a3 100644
--- a/clientapi/routing/profile.go
+++ b/clientapi/routing/profile.go
@@ -94,7 +94,7 @@ func GetAvatarURL(
 // nolint:gocyclo
 func SetAvatarURL(
 	req *http.Request, accountDB accounts.Database, device *authtypes.Device,
-	userID string, producer *producers.UserUpdateProducer, cfg *config.Dendrite,
+	userID string, cfg *config.Dendrite,
 	rsProducer *producers.RoomserverProducer, rsAPI api.RoomserverInternalAPI,
 ) util.JSONResponse {
 	if userID != device.UserID {
@@ -104,8 +104,6 @@ func SetAvatarURL(
 		}
 	}
 
-	changedKey := "avatar_url"
-
 	var r internal.AvatarURL
 	if resErr := httputil.UnmarshalJSONRequest(req, &r); resErr != nil {
 		return *resErr
@@ -174,11 +172,6 @@ func SetAvatarURL(
 		return jsonerror.InternalServerError()
 	}
 
-	if err := producer.SendUpdate(userID, changedKey, oldProfile.AvatarURL, r.AvatarURL); err != nil {
-		util.GetLogger(req.Context()).WithError(err).Error("producer.SendUpdate failed")
-		return jsonerror.InternalServerError()
-	}
-
 	return util.JSONResponse{
 		Code: http.StatusOK,
 		JSON: struct{}{},
@@ -216,7 +209,7 @@ func GetDisplayName(
 // nolint:gocyclo
 func SetDisplayName(
 	req *http.Request, accountDB accounts.Database, device *authtypes.Device,
-	userID string, producer *producers.UserUpdateProducer, cfg *config.Dendrite,
+	userID string, cfg *config.Dendrite,
 	rsProducer *producers.RoomserverProducer, rsAPI api.RoomserverInternalAPI,
 ) util.JSONResponse {
 	if userID != device.UserID {
@@ -226,8 +219,6 @@ func SetDisplayName(
 		}
 	}
 
-	changedKey := "displayname"
-
 	var r internal.DisplayName
 	if resErr := httputil.UnmarshalJSONRequest(req, &r); resErr != nil {
 		return *resErr
@@ -296,11 +287,6 @@ func SetDisplayName(
 		return jsonerror.InternalServerError()
 	}
 
-	if err := producer.SendUpdate(userID, changedKey, oldProfile.DisplayName, r.DisplayName); err != nil {
-		util.GetLogger(req.Context()).WithError(err).Error("producer.SendUpdate failed")
-		return jsonerror.InternalServerError()
-	}
-
 	return util.JSONResponse{
 		Code: http.StatusOK,
 		JSON: struct{}{},
diff --git a/clientapi/routing/routing.go b/clientapi/routing/routing.go
index 83e399ac..eb558205 100644
--- a/clientapi/routing/routing.go
+++ b/clientapi/routing/routing.go
@@ -55,7 +55,6 @@ func Setup(
 	deviceDB devices.Database,
 	federation *gomatrixserverlib.FederationClient,
 	keyRing gomatrixserverlib.KeyRing,
-	userUpdateProducer *producers.UserUpdateProducer,
 	syncProducer *producers.SyncAPIProducer,
 	eduProducer *producers.EDUServerProducer,
 	transactionsCache *transactions.Cache,
@@ -387,7 +386,7 @@ func Setup(
 			if err != nil {
 				return util.ErrorResponse(err)
 			}
-			return SetAvatarURL(req, accountDB, device, vars["userID"], userUpdateProducer, cfg, producer, rsAPI)
+			return SetAvatarURL(req, accountDB, device, vars["userID"], cfg, producer, rsAPI)
 		}),
 	).Methods(http.MethodPut, http.MethodOptions)
 	// Browsers use the OPTIONS HTTP method to check if the CORS policy allows
@@ -409,7 +408,7 @@ func Setup(
 			if err != nil {
 				return util.ErrorResponse(err)
 			}
-			return SetDisplayName(req, accountDB, device, vars["userID"], userUpdateProducer, cfg, producer, rsAPI)
+			return SetDisplayName(req, accountDB, device, vars["userID"], cfg, producer, rsAPI)
 		}),
 	).Methods(http.MethodPut, http.MethodOptions)
 	// Browsers use the OPTIONS HTTP method to check if the CORS policy allows