Map arbitrary values from auth to headers

[joltcan]

Just an idea, but a future feature could be that map things like LDAP data such as email, cn, whatnot to headers, such as X-email, X-cn or so, then a simple SSO request could provide that data as well, just like a proper identity provider could do.

[fabianonline]

This would also allow using remote authentication via Remote-User.

[Luzifer]

@fabianonline This is intended to be done in nginx. (See commented line in Nginx Implementation containing proxy_set_header)