Add some roomserver UTs (#3067)

Adds tests for `QueryRestrictedJoinAllowed`, `IsServerAllowed` and
`PerformRoomUpgrade`. Refactors the `QueryRoomVersionForRoom` method to
accept a string and return a `gmsl.RoomVersion` instead of req/resp
structs.
Adds some more caching for `GetStateEvent`

This should also fix #2912 by ignoring state events belonging to other
users.

clientapi/routing/createroom.go

@@ -48,7 +48,6 @@ type createRoomRequest struct {
 	CreationContent           json.RawMessage               `json:"creation_content"`
 	InitialState              []fledglingEvent              `json:"initial_state"`
 	RoomAliasName             string                        `json:"room_alias_name"`
-	GuestCanJoin              bool                          `json:"guest_can_join"`
 	RoomVersion               gomatrixserverlib.RoomVersion `json:"room_version"`
 	PowerLevelContentOverride json.RawMessage               `json:"power_level_content_override"`
 	IsDirect                  bool                          `json:"is_direct"`
@@ -253,16 +252,19 @@ func createRoom(
 		}
 	}
 
+	var guestsCanJoin bool
 	switch r.Preset {
 	case presetPrivateChat:
 		joinRuleContent.JoinRule = spec.Invite
 		historyVisibilityContent.HistoryVisibility = historyVisibilityShared
+		guestsCanJoin = true
 	case presetTrustedPrivateChat:
 		joinRuleContent.JoinRule = spec.Invite
 		historyVisibilityContent.HistoryVisibility = historyVisibilityShared
 		for _, invitee := range r.Invite {
 			powerLevelContent.Users[invitee] = 100
 		}
+		guestsCanJoin = true
 	case presetPublicChat:
 		joinRuleContent.JoinRule = spec.Public
 		historyVisibilityContent.HistoryVisibility = historyVisibilityShared
@@ -317,7 +319,7 @@ func createRoom(
 		}
 	}
 
-	if r.GuestCanJoin {
+	if guestsCanJoin {
 		guestAccessEvent = &fledglingEvent{
 			Type: spec.MRoomGuestAccess,
 			Content: eventutil.GuestAccessContent{

clientapi/routing/joinroom_test.go

@@ -66,7 +66,6 @@ func TestJoinRoomByIDOrAlias(t *testing.T) {
 			Preset:        presetPublicChat,
 			RoomAliasName: "alias",
 			Invite:        []string{bob.ID},
-			GuestCanJoin:  false,
 		}, aliceDev, &cfg.ClientAPI, userAPI, rsAPI, asAPI, time.Now())
 		crResp, ok := resp.JSON.(createRoomResponse)
 		if !ok {
@@ -75,13 +74,12 @@ func TestJoinRoomByIDOrAlias(t *testing.T) {
 
 		// create a room with guest access enabled and invite Charlie
 		resp = createRoom(ctx, createRoomRequest{
-			Name:         "testing",
-			IsDirect:     true,
-			Topic:        "testing",
-			Visibility:   "public",
-			Preset:       presetPublicChat,
-			Invite:       []string{charlie.ID},
-			GuestCanJoin: true,
+			Name:       "testing",
+			IsDirect:   true,
+			Topic:      "testing",
+			Visibility: "public",
+			Preset:     presetPublicChat,
+			Invite:     []string{charlie.ID},
 		}, aliceDev, &cfg.ClientAPI, userAPI, rsAPI, asAPI, time.Now())
 		crRespWithGuestAccess, ok := resp.JSON.(createRoomResponse)
 		if !ok {

clientapi/routing/profile.go

@@ -338,9 +338,8 @@ func buildMembershipEvents(
 	evs := []*gomatrixserverlib.HeaderedEvent{}
 
 	for _, roomID := range roomIDs {
-		verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
-		verRes := api.QueryRoomVersionForRoomResponse{}
-		if err := rsAPI.QueryRoomVersionForRoom(ctx, &verReq, &verRes); err != nil {
+		roomVersion, err := rsAPI.QueryRoomVersionForRoom(ctx, roomID)
+		if err != nil {
 			return nil, err
 		}
 
@@ -358,7 +357,7 @@ func buildMembershipEvents(
 		content.DisplayName = newProfile.DisplayName
 		content.AvatarURL = newProfile.AvatarURL
 
-		if err := builder.SetContent(content); err != nil {
+		if err = builder.SetContent(content); err != nil {
 			return nil, err
 		}
 
@@ -372,7 +371,7 @@ func buildMembershipEvents(
 			return nil, err
 		}
 
-		evs = append(evs, event.Headered(verRes.RoomVersion))
+		evs = append(evs, event.Headered(roomVersion))
 	}
 
 	return evs, nil

clientapi/routing/sendevent.go

@@ -76,9 +76,8 @@ func SendEvent(
 	rsAPI api.ClientRoomserverAPI,
 	txnCache *transactions.Cache,
 ) util.JSONResponse {
-	verReq := api.QueryRoomVersionForRoomRequest{RoomID: roomID}
-	verRes := api.QueryRoomVersionForRoomResponse{}
-	if err := rsAPI.QueryRoomVersionForRoom(req.Context(), &verReq, &verRes); err != nil {
+	roomVersion, err := rsAPI.QueryRoomVersionForRoom(req.Context(), roomID)
+	if err != nil {
 		return util.JSONResponse{
 			Code: http.StatusBadRequest,
 			JSON: jsonerror.UnsupportedRoomVersion(err.Error()),
@@ -185,7 +184,7 @@ func SendEvent(
 		req.Context(), rsAPI,
 		api.KindNew,
 		[]*gomatrixserverlib.HeaderedEvent{
-			e.Headered(verRes.RoomVersion),
+			e.Headered(roomVersion),
 		},
 		device.UserDomain(),
 		domain,
@@ -200,7 +199,7 @@ func SendEvent(
 	util.GetLogger(req.Context()).WithFields(logrus.Fields{
 		"event_id":     e.EventID(),
 		"room_id":      roomID,
-		"room_version": verRes.RoomVersion,
+		"room_version": roomVersion,
 	}).Info("Sent event to roomserver")
 
 	res := util.JSONResponse{

clientapi/routing/server_notices.go

@@ -157,7 +157,6 @@ func SendServerNotice(
 			Visibility:                "private",
 			Preset:                    presetPrivateChat,
 			CreationContent:           cc,
-			GuestCanJoin:              false,
 			RoomVersion:               roomVersion,
 			PowerLevelContentOverride: pl,
 		}