view mod_s2s_blacklist/mod_s2s_blacklist.lua @ 3634:915e32d5a147

mod_smacks: fix bug for missbehaving clients sending multiple acks in a row Missbehaving clients, sending multiple acks in a row (I'm looking at you Monal!) triggered the ack-loop-prevention code added in 2017, leaving unacked stanzas in the queue. This fixes the bug while still preventing ack-loops.
author tmolitor <thilo@eightysoft.de>
date Tue, 30 Jul 2019 02:07:13 +0200 (2019-07-30)
parents d958558e0058
children
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local st = require "util.stanza";

local blacklist = module:get_option_inherited_set("s2s_blacklist", {});

module:hook("route/remote", function (event)
	if blacklist:contains(event.to_host) then
		if event.stanza.attr.type ~= "error" then
			module:send(st.error_reply(event.stanza, "cancel", "not-allowed", "Communication with this domain is restricted"));
		end
		return true;
	end
end, 100);

module:hook("s2s-stream-features", function (event)
	if blacklist:contains(event.origin.from_host) then
		event.origin:close({
			condition = "policy-violation";
			text = "Communication with this domain is restricted";
		});
	end
end, 1000);