1 local st = require "util.stanza";

     2 

     3 local omemo_namespace_prefix = "eu.siacs.conversations.axolotl."

     4 

     5 module:hook("iq/bare/http://jabber.org/protocol/pubsub:pubsub", function (event)

     6 	local origin, stanza = event.origin, event.stanza;

     7 

     8 	local node = stanza.tags[1].tags[1].attr.node;

     9 	if node and node:sub(1, #omemo_namespace_prefix) == omemo_namespace_prefix then

    10 		origin.send(st.error_reply(stanza, "cancel", "item-not-found", "OMEMO is disabled"));

    11 		return true;

    12 	end

    13 end, 10);