local st = require "util.stanza";

local send = require "core.sessionmanager".send_to_session;

local sm_bind_resource = require "core.sessionmanager".bind_resource;

local usermanager_validate_credentials = require "core.usermanager".validate_credentials;

local t_concat, t_insert = table.concat, table.insert;

local tostring = tostring;

local log = require "util.logger".init("mod_starttls");

local xmlns_starttls ='urn:ietf:params:xml:ns:xmpp-tls';

local new_connhandler = require "net.connhandlers".new;

add_handler("c2s_unauthed", "starttls", xmlns_starttls,

		function (session, stanza)

			if session.conn.starttls then

				print("Wants to do TLS...");

				send(session, st.stanza("proceed", { xmlns = xmlns_starttls }));

				session.connhandler = new_connhandler("xmpp-client", session);

				session.notopen = true;

				if session.conn.starttls() then

					print("Done");

				else

					print("Failed");

				end

			end

		end);

add_event_hook("stream-features", 

					function (session, features)												

						if session.conn.starttls then

							t_insert(features, "<starttls xmlns='"..xmlns_starttls.."'/>");

						end

					end);