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Fix failing ban tests (#1884)

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* Add room membership and powerlevel checks for func SendBan

* Added non-error return to func GetStateEvent when no state events with the specified state key are found

* Add passing tests to whitelist

* Fixed formatting

* Update roomserver/storage/shared/storage.go

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Co-authored-by: kegsay <kegan@matrix.org>
Co-authored-by: kegsay <kegsay@gmail.com>
This commit is contained in:
David Spenler 2021-07-19 13:33:05 -04:00 committed by GitHub
parent 5094bc89bf
commit 8d8fe485b4
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3 changed files with 37 additions and 0 deletions
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31
clientapi/routing/membership.go
View file

@ -47,6 +47,37 @@ func SendBan(
if reqErr != nil {
return *reqErr
}
errRes := checkMemberInRoom(req.Context(), rsAPI, device.UserID, roomID)
if errRes != nil {
return *errRes
}
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 ban this user, 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 ban this user, the power_levels event for this room is malformed so auth checks cannot be performed."),
}
}
allowedToBan := pl.UserLevel(device.UserID) >= pl.Ban
if !allowedToBan {
return util.JSONResponse{
Code: 403,
JSON: jsonerror.Forbidden("You don't have permission to ban this user, power level too low."),
}
}
return sendMembership(req.Context(), accountDB, device, roomID, "ban", body.Reason, cfg, body.UserID, evTime, roomVer, rsAPI, asAPI)
}

4
roomserver/storage/shared/storage.go
View file

@ -866,6 +866,10 @@ func (d *Database) GetStateEvent(ctx context.Context, roomID, evType, stateKey s
return nil, err
}
stateKeyNID, err := d.EventStateKeysTable.SelectEventStateKeyNID(ctx, nil, stateKey)
if err == sql.ErrNoRows {
// No rooms have a state event with this state key, otherwise we'd have an state key NID
return nil, nil
}
if err != nil {
return nil, err
}

2
sytest-whitelist
View file

@ -520,6 +520,8 @@ Inviting an AS-hosted user asks the AS server
Can generate a openid access_token that can be exchanged for information about a user
Invalid openid access tokens are rejected
Requests to userinfo without access tokens are rejected
'ban' event respects room powerlevel
Non-present room members cannot ban others
POST /_synapse/admin/v1/register with shared secret
POST /_synapse/admin/v1/register admin with shared secret
POST /_synapse/admin/v1/register with shared secret downcases capitals