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.

-- COMPAT for Openfire sending stream headers without to or from.

module:set_global();

module:hook("s2s-check-certificate", function(event)
	local session, host = event.session, event.host;
	if not event.host then
		(session.log or module._log)("warn", "Invalid stream header, certificate will not be trusted")
		session.cert_chain_status = "invalid"
		return true
	end
end, 100);