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Check if user has the power level to edit the room visibility (#900)

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* Check if user has the power level to edit the room visibility

* fix review changes

* Add nil check for queryEventsRes.StateEvents

Co-authored-by: Alex Chen <Cnly@users.noreply.github.com>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This commit is contained in:
Prateek Sachan 2020-04-14 18:37:03 +05:30 • committed by GitHub
parent d359851708
commit 1321f8da80
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3 changed files with 50 additions and 5 deletions
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47
publicroomsapi/directory/directory.go
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@ -17,6 +17,9 @@ package directory
import (
"net/http"
"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
"github.com/matrix-org/dendrite/roomserver/api"
"github.com/matrix-org/dendrite/clientapi/httputil"
"github.com/matrix-org/dendrite/clientapi/jsonerror"
"github.com/matrix-org/dendrite/publicroomsapi/storage"
@ -54,11 +57,51 @@ func GetVisibility(
}
// SetVisibility implements PUT /directory/list/room/{roomID}
// TODO: Check if user has the power level to edit the room visibility
// TODO: Allow admin users to edit the room visibility
func SetVisibility(
req *http.Request, publicRoomsDatabase storage.Database,
req *http.Request, publicRoomsDatabase storage.Database, queryAPI api.RoomserverQueryAPI, dev *authtypes.Device,
roomID string,
) util.JSONResponse {
queryMembershipReq := api.QueryMembershipForUserRequest{
RoomID: roomID,
UserID: dev.UserID,
}
var queryMembershipRes api.QueryMembershipForUserResponse
err := queryAPI.QueryMembershipForUser(req.Context(), &queryMembershipReq, &queryMembershipRes)
if err != nil {
util.GetLogger(req.Context()).WithError(err).Error("could not query membership for user")
return jsonerror.InternalServerError()
}
// Check if user id is in room
if !queryMembershipRes.IsInRoom {
return util.JSONResponse{
Code: http.StatusForbidden,
JSON: jsonerror.Forbidden("user does not belong to room"),
}
}
queryEventsReq := api.QueryLatestEventsAndStateRequest{
RoomID: roomID,
StateToFetch: []gomatrixserverlib.StateKeyTuple{{
EventType: gomatrixserverlib.MRoomPowerLevels,
StateKey: "",
}},
}
var queryEventsRes api.QueryLatestEventsAndStateResponse
err = queryAPI.QueryLatestEventsAndState(req.Context(), &queryEventsReq, &queryEventsRes)
if err != nil || len(queryEventsRes.StateEvents) == 0 {
util.GetLogger(req.Context()).WithError(err).Error("could not query events from room")
return jsonerror.InternalServerError()
}
power, _ := gomatrixserverlib.NewPowerLevelContentFromEvent(queryEventsRes.StateEvents[0].Event)
// Check if the user's power is greater than power required to change m.room.aliases event
if power.UserLevel(dev.UserID) < power.EventLevel(gomatrixserverlib.MRoomAliases, true) {
return util.JSONResponse{
Code: http.StatusForbidden,
JSON: jsonerror.Forbidden("userID doesn't have power level to change visibility"),
}
}
var v roomVisibility
if reqErr := httputil.UnmarshalJSONRequest(req, &v); reqErr != nil {
return *reqErr