view mod_broadcast/mod_broadcast.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 9f7c97e55593
children
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local is_admin = require "core.usermanager".is_admin;
local allowed_senders = module:get_option_set("broadcast_senders", {});
local from_address = module:get_option_string("broadcast_from");

local jid_bare = require "util.jid".bare;

function send_to_online(message)
	local c = 0;
	for hostname, host_session in pairs(hosts) do
		if host_session.sessions then
			for username in pairs(host_session.sessions) do
				c = c + 1;
				message.attr.to = username.."@"..hostname;
				module:send(message);
			end
		end
	end
	return c;
end

function send_message(event)
	local stanza = event.stanza;
	local from = stanza.attr.from;
	if is_admin(from) or allowed_senders:contains(jid_bare(from)) then
		if from_address then
			stanza = st.clone(stanza);
			stanza.attr.from = from_address;
		end
		local c = send_to_online(stanza);
		module:log("debug", "Broadcast stanza from %s to %d online users", from, c);
		return true;
	else
		module:log("warn", "Broadcasting is not allowed for %s", from);
	end
end

module:hook("message/bare", send_message);