Openstack allows creation of users whose name contains characters such as dots, commas, colons, etc.
What if a username such as "user,name" is used in an Object storage ACLs to provide access to a container (e.g., field of X-Container-Read header)? That would grant read access to two users, "user" and "name". A username could also have name ".rlistings", which is a reserved term for that container header. Is there some sort of escaping defined to handle this? Or a way to configure keystone to validate user names according to certain regexes? Thanks, Vincenzo.
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