[pure-ftpd] Permissions of the current FTP user

Hi,

I was wondering if it's possible to get the permissions for files/directories in the context of the current FTP user. I know that you can use MLST or MLSD to get the unix permissions, the UID, and the GID for objects. What I 'm missing are the UID and the GIDs of the currently logged in FTP user.

One possibility would be to download and parse /etc/passwd and /etc/group but that seems like a really fragile way to handle this problem. I guess this also wouldn't work when using LDAP authentication or virtual users?

RFC 3659 describes such a permission query[1] as part of MLST/MLSD but Pure-FTPd doesn't implement this feature. Does Pure-FTPd have a feature which allows for such a permission query? What approach would you recommend?

[1]: https://tools.ietf.org/html/rfc3659#section-7.5.5

Greetings
Michael