1 local st = require "util.stanza";

     2 

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

     4 

     5 module:hook("route/remote", function (event)

     6 	if blacklist:contains(event.to_host) then

     7 		module:send(st.error_reply(event.stanza, "cancel", "not-allowed", "Communication with this domain is restricted"));

     8 		return true;

     9 	end

    10 end, 100);

    11 

    12 module:hook("s2s-stream-features", function (event)

    13 	if blacklist:contains(event.origin.from_host) then

    14 		event.origin:close({

    15 			condition = "policy-violation";

    16 			text = "Communication with this domain is restricted";

    17 		});

    18 	end

    19 end, 1000);