view mod_muc_offline_delivery/mod_muc_offline_delivery.lua @ 5296:0f5657db1cfc

mod_isolate_host: handle server-generated stanzas The hook for setting the no_host_isolation is only called for c2s sessions. This does not work for stanzas generated by the server, such as PEP notifications or presence probe answers. To handle that, we do per-stanza checks for the case that the origin is local.
author Jonas Schäfer <jonas@wielicki.name>
date Sat, 01 Apr 2023 12:03:08 +0200
parents 4abb33a15897
children
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local st = require "util.stanza";

local default_enable = module:get_option_boolean("muc_offline_delivery_default", false);

module:add_item("muc-registration-field", {
	name = "offline_delivery";
	var = "{http://tigase.org/protocol/muc}offline";
	type = "boolean";
	label = "Receive messages while not connected to the room";
	value = default_enable;
});

module:hook("muc-registration-submitted", function (event)
	local deliver_offline = event.submitted_data.offline_delivery;
	event.affiliation_data.offline_delivery = deliver_offline;
end);

module:hook("muc-add-history", function (event)
	module:log("debug", "Broadcasting message to offline occupants...");
	local sent = 0;
	local room = event.room;
	for jid, affiliation, data in room:each_affiliation() do --luacheck: ignore 213/affiliation
		local reserved_nickname = data and data.reserved_nickname;
		local user_setting = data and data.offline_delivery or nil;
		if reserved_nickname and (user_setting or (user_setting == nil and default_enable)) then
			local is_absent = not room:get_occupant_by_nick(room.jid.."/"..reserved_nickname);
			if is_absent then
				module:log("debug", "Forwarding message to offline member <%s>", jid);
				local msg = st.clone(event.stanza);
				msg.attr.to = jid;
				module:send(msg);
				sent = sent + 1;
			end
		end
	end
	if sent > 0 then
		module:log("debug", "Sent message to %d offline occupants", sent);
	end
end);