view mod_sslv3_warn/mod_sslv3_warn.lua @ 4293:edde5905744a

mod_s2s_keepalive: Don't send whitespace keepalives before s2sin stream is open Could possibly result in whitespace before the XML and stream header, which isn't allowed by the parser. Don't think s2sout is affected, as the stream is opened early and doesn't have to wait for the other end. Thanks Ge0rG
author Kim Alvefur <zash@zash.se>
date Thu, 10 Dec 2020 11:57:03 +0100
parents 37cef218ba20
children
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local st = require"util.stanza";
local host = module.host;

local warning_message = module:get_option_string("sslv3_warning", "Your connection is encrypted using the SSL 3.0 protocol, which has been demonstrated to be insecure and will be disabled soon.  Please upgrade your client.");

module:hook("resource-bind", function (event)
	local session = event.session;
	module:log("debug", "mod_%s sees that %s logged in", module.name, session.username);

	local ok, protocol = pcall(function(session)
		return session.conn:socket():info"protocol";
	end, session);
	if not ok then
		module:log("debug", protocol);
	elseif protocol == "SSLv3" then
		module:add_timer(15, function ()
			if session.type == "c2s" and session.resource then
				session.send(st.message({ from = host, type = "headline", to = session.full_jid }, warning_message));
			end
		end);
	end
end);