File

mod_sslv3_warn/mod_sslv3_warn.lua @ 4362:116c88c28532

mod_http_admin_api: restructure group-related info in API - Return the members of the group right in the get_group_by_id call. This is an O(1) of extra work. - Remove the groups attribute from get_user_by_name as that is O(n) of work and rarely immediately needed. The replacement for the group membership information in the user is for now to use the group API and iterate; future work may fix that.
author Jonas Schäfer <jonas@wielicki.name>
date Wed, 20 Jan 2021 15:30:29 +0100
parent 1525:37cef218ba20
line wrap: on
line source

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);