mod_s2s_keepalive: Ignore errors from the local server If a stanza can't be delivered and instead an bounce is generated, the origin of the error, when different from the stanza 'from' should be indicated in the 'by' attribute of the <error>, which we look for here so this doesn't count as a successful ping. An error that does come from the remote means we have connectivity, but probably no XEP-0199 handling. This is fine. We care about connectivity, not protocol.

local st = require "util.stanza";

local important_payloads = module:get_option_set("csi_important_payloads", { });

module:hook("csi-is-stanza-important", function (event)
	local stanza = event.stanza;
	if st.is_stanza(stanza) then
		for important in important_payloads do
			if stanza:find(important) then
				return true;
			end
		end
	end
end);