mod_net_proxy: Use safer util.format for generating description string (thanks tom) It appears that server_event may emit port numbers (src_port() in this case) as strings, rather than integers. This causes string.format() to throw an error. Prosody's util.format is a more forgiving formatter and won't throw an error. The server_event behaviour may be best fixed for the sake of consistency, though.

local st = require "util.stanza";

local important_payloads = module:get_option_set("csi_important_payloads", { });

module:hook("csi-is-stanza-important", function (event)
	local stanza = event.stanza;
	if st.is_stanza(stanza) then
		for important in important_payloads do
			if stanza:find(important) then
				return true;
			end
		end
	end
end);