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roomserver: don't make_join with ourselves if clients ask us to (#1797)

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* roomserver: don't make_join with ourselves if clients ask us to

* delete properly
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Kegsay 2021-03-08 18:16:28 +00:00 committed by GitHub
parent 77fb981da5
commit 3c419be6af
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1 changed files with 10 additions and 0 deletions
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10
roomserver/internal/perform/perform_join.go
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@ -151,6 +151,16 @@ func (r *Joiner) performJoinRoomByID(
ctx context.Context,
req *api.PerformJoinRequest,
) (string, gomatrixserverlib.ServerName, error) {
// The original client request ?server_name=... may include this HS so filter that out so we
// don't attempt to make_join with ourselves
for i := 0; i < len(req.ServerNames); i++ {
if req.ServerNames[i] == r.Cfg.Matrix.ServerName {
// delete this entry
req.ServerNames = append(req.ServerNames[:i], req.ServerNames[i+1:]...)
i--
}
}
// Get the domain part of the room ID.
_, domain, err := gomatrixserverlib.SplitID('!', req.RoomIDOrAlias)
if err != nil {