mirror of
https://github.com/matrix-org/dendrite
synced 2024-09-08 12:17:16 +02:00
* Move config, setup, mscs into "setup" top-level folder * oops, forgot the EDU server * Add setup * goimports
134 lines
4.2 KiB
Go
134 lines
4.2 KiB
Go
// Copyright 2020 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 (
|
|
"context"
|
|
"net/http"
|
|
"time"
|
|
|
|
"github.com/matrix-org/dendrite/clientapi/httputil"
|
|
"github.com/matrix-org/dendrite/clientapi/jsonerror"
|
|
"github.com/matrix-org/dendrite/internal/eventutil"
|
|
"github.com/matrix-org/dendrite/roomserver/api"
|
|
roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
|
|
"github.com/matrix-org/dendrite/setup/config"
|
|
userapi "github.com/matrix-org/dendrite/userapi/api"
|
|
"github.com/matrix-org/gomatrixserverlib"
|
|
"github.com/matrix-org/util"
|
|
)
|
|
|
|
type redactionContent struct {
|
|
Reason string `json:"reason"`
|
|
}
|
|
|
|
type redactionResponse struct {
|
|
EventID string `json:"event_id"`
|
|
}
|
|
|
|
func SendRedaction(
|
|
req *http.Request, device *userapi.Device, roomID, eventID string, cfg *config.ClientAPI,
|
|
rsAPI roomserverAPI.RoomserverInternalAPI,
|
|
) util.JSONResponse {
|
|
resErr := checkMemberInRoom(req.Context(), rsAPI, device.UserID, roomID)
|
|
if resErr != nil {
|
|
return *resErr
|
|
}
|
|
|
|
ev := roomserverAPI.GetEvent(req.Context(), rsAPI, eventID)
|
|
if ev == nil {
|
|
return util.JSONResponse{
|
|
Code: 400,
|
|
JSON: jsonerror.NotFound("unknown event ID"), // TODO: is it ok to leak existence?
|
|
}
|
|
}
|
|
if ev.RoomID() != roomID {
|
|
return util.JSONResponse{
|
|
Code: 400,
|
|
JSON: jsonerror.NotFound("cannot redact event in another room"),
|
|
}
|
|
}
|
|
|
|
// "Users may redact their own events, and any user with a power level greater than or equal
|
|
// to the redact power level of the room may redact events there"
|
|
// https://matrix.org/docs/spec/client_server/r0.6.1#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
|
|
allowedToRedact := ev.Sender() == device.UserID
|
|
if !allowedToRedact {
|
|
plEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
|
|
EventType: gomatrixserverlib.MRoomPowerLevels,
|
|
StateKey: "",
|
|
})
|
|
if plEvent == nil {
|
|
return util.JSONResponse{
|
|
Code: 403,
|
|
JSON: jsonerror.Forbidden("You don't have permission to redact this event, no power_levels event in this room."),
|
|
}
|
|
}
|
|
pl, err := plEvent.PowerLevels()
|
|
if err != nil {
|
|
return util.JSONResponse{
|
|
Code: 403,
|
|
JSON: jsonerror.Forbidden(
|
|
"You don't have permission to redact this event, the power_levels event for this room is malformed so auth checks cannot be performed.",
|
|
),
|
|
}
|
|
}
|
|
allowedToRedact = pl.UserLevel(device.UserID) >= pl.Redact
|
|
}
|
|
if !allowedToRedact {
|
|
return util.JSONResponse{
|
|
Code: 403,
|
|
JSON: jsonerror.Forbidden("You don't have permission to redact this event, power level too low."),
|
|
}
|
|
}
|
|
|
|
var r redactionContent
|
|
resErr = httputil.UnmarshalJSONRequest(req, &r)
|
|
if resErr != nil {
|
|
return *resErr
|
|
}
|
|
|
|
// create the new event and set all the fields we can
|
|
builder := gomatrixserverlib.EventBuilder{
|
|
Sender: device.UserID,
|
|
RoomID: roomID,
|
|
Type: gomatrixserverlib.MRoomRedaction,
|
|
Redacts: eventID,
|
|
}
|
|
err := builder.SetContent(r)
|
|
if err != nil {
|
|
util.GetLogger(req.Context()).WithError(err).Error("builder.SetContent failed")
|
|
return jsonerror.InternalServerError()
|
|
}
|
|
|
|
var queryRes api.QueryLatestEventsAndStateResponse
|
|
e, err := eventutil.QueryAndBuildEvent(req.Context(), &builder, cfg.Matrix, time.Now(), rsAPI, &queryRes)
|
|
if err == eventutil.ErrRoomNoExists {
|
|
return util.JSONResponse{
|
|
Code: http.StatusNotFound,
|
|
JSON: jsonerror.NotFound("Room does not exist"),
|
|
}
|
|
}
|
|
if err = roomserverAPI.SendEvents(context.Background(), rsAPI, api.KindNew, []*gomatrixserverlib.HeaderedEvent{e}, cfg.Matrix.ServerName, nil); err != nil {
|
|
util.GetLogger(req.Context()).WithError(err).Errorf("failed to SendEvents")
|
|
return jsonerror.InternalServerError()
|
|
}
|
|
return util.JSONResponse{
|
|
Code: 200,
|
|
JSON: redactionResponse{
|
|
EventID: e.EventID(),
|
|
},
|
|
}
|
|
}
|