make configurable the path where tor binaries are downloaded
We might not use /tmp but another place with more storage for it.
Reading at the relay_files
code I'm not sure the downloaded binaries get deleted, do they? if not we might want to delete them, anyway they are already uploaded to telegram and we might not want to keep so much space used.
Also on relay_files
is a bit confusing that file_object
is two different things in two places of the same function.