-function sendUnavailable(origin, to, from)
---[[ example unavailable presence stanza
-<presence from="node@host/resource" type="unavailable" to="node@host" >
- <status>Logged out</status>
-</presence>
-]]--
- local presence = st.presence({from=from, type="unavailable"});
- presence:tag("status"):text("Logged out");
-
- local node, host = jid_bare(to);
- local bare = node .. "@" .. host;
-
- local user = bare_sessions[bare];
- if user then
- for resource, session in pairs(user.sessions) do
- presence.attr.to = session.full_jid;
- module:log("debug", "send unavailable to: %s; from: %s", tostring(presence.attr.to), tostring(presence.attr.from));
- origin.send(presence);
- end
- end
-end
-