mod_report_affiliations: Fix traceback a non-user is sending a presence For now we won’t touch their presence instead of emiting this traceback: error Traceback[s2s]: /usr/lib/prosody/core/rostermanager.lua:275: attempt to concatenate a nil value (local 'username') stack traceback: /usr/lib/prosody/core/rostermanager.lua:275: in function 'prosody.core.rostermanager.is_user_subscribed' ...ules/mod_report_affiliations/mod_report_affiliations.lua:116: in field '?' /usr/lib/prosody/util/events.lua:81: in function </usr/lib/prosody/util/events.lua:77> (...tail calls...) /usr/lib/prosody/core/stanza_router.lua:184: in upvalue 'core_post_stanza' /usr/lib/prosody/modules/mod_presence.lua:244: in function </usr/lib/prosody/modules/mod_presence.lua:231> (...tail calls...) /usr/lib/prosody/util/events.lua:81: in function </usr/lib/prosody/util/events.lua:77> (...tail calls...) /usr/lib/prosody/core/stanza_router.lua:188: in upvalue 'core_post_stanza' /usr/lib/prosody/core/stanza_router.lua:128: in upvalue 'core_process_stanza' /usr/lib/prosody/modules/mod_s2s.lua:818: in upvalue 'func' /usr/lib/prosody/util/async.lua:149: in function </usr/lib/prosody/util/async.lua:147>

local jid_split = require "util.jid".split;
local st = require "util.stanza";
local set = require "util.set";
local select = select;

local blacklist = module:get_option_inherited_set("host_blacklist", {});

local function stanza_checker(attr)
	return function (event)
		local host = select(2, jid_split(event.stanza.attr[attr]));
		if blacklist:contains(host) then
			module:send(st.error_reply(event.stanza, "cancel", "not-allowed", "Communication with this domain is restricted"));
			return true;
		end
	end
end

check_incoming_stanza = stanza_checker("from");
check_outgoing_stanza = stanza_checker("to");

for stanza_type in set.new{"presence","message","iq"}:items() do
	for jid_type in set.new{"bare", "full", "host"}:items() do
		module:hook("pre-"..stanza_type.."/"..jid_type, check_outgoing_stanza, 500);
		module:hook(stanza_type.."/"..jid_type, check_incoming_stanza, 500);
	end
end