mod_auth_cyrus: Add empty 'profile' table to SASL handler objects This is for compatibility with Prosody's built-in util.sasl objects. A SASL profile table usually includes methods supported by the backend, which can be used by SASL mechanism handlers to perform operations (such as testing the password). It also optionally contains a 'cb' field with channel binding method handlers. The Cyrus backend doesn't support channel binding, and doesn't have the same concept of auth backend methods (it handles all that internally, and Prosody has no insight or control over it). Thus, we create an empty profile which informs Prosody that the SASL handler does not support any of the auth or channel binding methods. Some features will not work, but they didn't work anyway. This just makes it explicit. This fixes a traceback in mod_sasl2_fast, which expected SASL handlers to always contain a 'profile' field.

-- Ignore disabled offline storage
--
-- Copyright (C) 2019-2020 Thilo Molitor
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

-- depend on mod_mam to make sure mam is at least loaded and active
module:depends "mam";

-- ignore offline messages and don't return any error (the message will be already in MAM at this point)
-- this is *only* triggered if mod_offline is *not* loaded and completely ignored otherwise
module:hook("message/offline/handle", function(event)
	local log = event.origin and event.origin.log or module._log;
	if log then
		log("info", "Ignoring offline message (mod_offline seems *not* to be loaded)...");
	end
	return true;
end, -100);