File

mod_muc_offline_delivery/mod_muc_offline_delivery.lua @ 5600:6d0574bfbf5d

mod_client_management: Include software version in table (when known) Showing software versions could be useful for statistical reasons, e.g. determining how quickly (or not) users upgrade, but most importantly for revoking vulnerable clients versions in case of a security issue.
author Kim Alvefur <zash@zash.se>
date Thu, 13 Jul 2023 23:26:02 +0200 (20 months ago)
parent 4780:4abb33a15897
line wrap: on
line source
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);