Package: prosody-modules Version: 0.0~hg20160813.65d9093525ca+dfsg-1 Severity: wishlist
This module seems to be useful:
Privileged Entity is an extension which allows entity/component to have privileged access to server (set/get roster, send message on behalf of server, access presence informations). It can be used to build services independently of server (e.g.: PEP service).
(https://modules.prosody.im/mod_privilege.html)

