pure-ftpd issues (KeepAllFiles and NoRename only for some users)

hi everybody,

I'm trying to implement this kind of ftp service:


a) /srv/ftproot contains the root of the hosted ftp files

b) subdirs of /srv/ftproot are the home directories of my users.

c) ordinary users can login and they will be chrooted in their
respective (/srv/ftproot/<homedir>/)

d) once a file is uploaded, it can't be renamed/deleted, nor can other
files.

d) "Administrators" must be able to login and see all the /srv/ftproot/

e) "Administrators" must have full privileges (delete, rename, etc.).



-> I am trying with PureFTPd, and I can satisfy every point, EXCEPT e)

I set up pureftpd with mysql, the relevant options I'm using are:
-A (ChrootEveryone)
-K (KeepAllFiles)
-G (NoRename (disallow_rename in the code))


Now I am stuck... because there seem to be no option to differentiate
one user from another, regarding the -K and the -G switches.


I think I should try using "-a" instead of "-A", and make administrators
members of the trusted group.... but I don't know exactly how to cope
with this.


Another "quick and dirty" option is to patch the source code (ftpd.c),
and selectively disable the "disallow_rename" and the "keepallfiles"
variables (put them to 0), if the user has a (new) flag like
"userisadmin".


Other options? Maybe switch to ProFtpd, which seems to support more
Apache-like ACLs (.ftpaccess files) ?

Please please please post some hints I'm pretty much stuck

Thanks in advance

--
Davide DG.

Davide DG <(E-Mail Removed)> scrisse:

> Another "quick and dirty" option is to patch the source code (ftpd.c),
> and selectively disable the "disallow_rename" and the "keepallfiles"
> variables (put them to 0), if the user has a (new) flag like
> "userisadmin".

And... that's what I ended to do! ^_^

I patched 1.0.19 (debian sarge) source code, and it seems to work like a
charm! ^__^


--
Davide DG.
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