dendrite/clientapi/routing/aliases.go
Neil Alexander c1447a58e5
Various alias fixes (#1934)
* Generate m.room.canonical_alias instead of legacy m.room.aliases

* Add omitempty tags

* Add aliases endpoint to client API

* Check power levels when setting aliases

* Don't return null on /aliases

* Don't return error if the state event fails

* Update sytest-whitelist

* Don't send updated m.room.canonical_alias events

* Don't check PLs after all because for local aliases they are apparently irrelevant

* Fix some bugs

* Allow deleting a local alias with enough PL

* Fix some more bugs

* Update sytest-whitelist

* Fix copyright notices

* Review comments
2021-07-21 16:53:50 +01:00

96 lines
3.2 KiB
Go

// Copyright 2021 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 routing
import (
"fmt"
"net/http"
"github.com/matrix-org/dendrite/clientapi/jsonerror"
"github.com/matrix-org/dendrite/roomserver/api"
userapi "github.com/matrix-org/dendrite/userapi/api"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/util"
)
// GetAliases implements GET /_matrix/client/r0/rooms/{roomId}/aliases
func GetAliases(
req *http.Request, rsAPI api.RoomserverInternalAPI, device *userapi.Device, roomID string,
) util.JSONResponse {
stateTuple := gomatrixserverlib.StateKeyTuple{
EventType: gomatrixserverlib.MRoomHistoryVisibility,
StateKey: "",
}
stateReq := &api.QueryCurrentStateRequest{
RoomID: roomID,
StateTuples: []gomatrixserverlib.StateKeyTuple{stateTuple},
}
stateRes := &api.QueryCurrentStateResponse{}
if err := rsAPI.QueryCurrentState(req.Context(), stateReq, stateRes); err != nil {
util.GetLogger(req.Context()).WithError(err).Error("rsAPI.QueryCurrentState failed")
return util.ErrorResponse(fmt.Errorf("rsAPI.QueryCurrentState: %w", err))
}
visibility := "invite"
if historyVisEvent, ok := stateRes.StateEvents[stateTuple]; ok {
var err error
visibility, err = historyVisEvent.HistoryVisibility()
if err != nil {
util.GetLogger(req.Context()).WithError(err).Error("historyVisEvent.HistoryVisibility failed")
return util.ErrorResponse(fmt.Errorf("historyVisEvent.HistoryVisibility: %w", err))
}
}
if visibility != gomatrixserverlib.WorldReadable {
queryReq := api.QueryMembershipForUserRequest{
RoomID: roomID,
UserID: device.UserID,
}
var queryRes api.QueryMembershipForUserResponse
if err := rsAPI.QueryMembershipForUser(req.Context(), &queryReq, &queryRes); err != nil {
util.GetLogger(req.Context()).WithError(err).Error("rsAPI.QueryMembershipsForRoom failed")
return jsonerror.InternalServerError()
}
if !queryRes.IsInRoom {
return util.JSONResponse{
Code: http.StatusForbidden,
JSON: jsonerror.Forbidden("You aren't a member of this room."),
}
}
}
aliasesReq := api.GetAliasesForRoomIDRequest{
RoomID: roomID,
}
aliasesRes := api.GetAliasesForRoomIDResponse{}
if err := rsAPI.GetAliasesForRoomID(req.Context(), &aliasesReq, &aliasesRes); err != nil {
util.GetLogger(req.Context()).WithError(err).Error("rsAPI.GetAliasesForRoomID failed")
return util.ErrorResponse(fmt.Errorf("rsAPI.GetAliasesForRoomID: %w", err))
}
response := struct {
Aliases []string `json:"aliases"`
}{
Aliases: aliasesRes.Aliases,
}
if response.Aliases == nil {
response.Aliases = []string{} // pleases sytest
}
return util.JSONResponse{
Code: 200,
JSON: response,
}
}