[Zope] Change owner from external app

[Marek 'MMx' Ludha]

Hi.

I am writing an external application and I need to modify owner and
permissions of zope files from that app. I thought about using HTTP
object publishing or XML-RPC, so I checked documentation at
http://www.plope.com/Books/2_7Edition/AppendixB.stx#2-45 but I can't
find any method to deal with owner/permissions. Is there really no way
to do this or am I just missing something?
Thanks in advance.

Marek Ludha