-- Prosody IM

-- Copyright (C) 2014 Florian Zeitz

--

-- This project is MIT/X11 licensed. Please see the

-- COPYING file in the source package for more information.

--

local presence = module:depends("presence");

local send_presence_of_available_resources = presence.send_presence_of_available_resources;

local hosts = prosody.hosts;

local core_post_stanza = prosody.core_post_stanza;

local st = require "util.stanza";

local is_admin = require "core.usermanager".is_admin;

local jid_split = require "util.jid".split;

module:hook("presence/bare", function(data)

	local origin, stanza = data.origin, data.stanza;

	local to, from, type = stanza.attr.to, stanza.attr.from, stanza.attr.type;

	local node, host = jid_split(to);

	if type ~= "probe" then return; end

	if not is_admin(from, module.host) then return; end

	if 0 == send_presence_of_available_resources(node, host, from, origin) then

		core_post_stanza(hosts[host], st.presence({from=to, to=from, type="unavailable"}), true);

	end

	return true;

end, 10);