2 -- Copyright (C) 2008-2009 Matthew Wild
3 -- Copyright (C) 2008-2009 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
9 local st = require "util.stanza";
11 local xmlns_stream = 'http://etherx.jabber.org/streams';
12 local xmlns_starttls = 'urn:ietf:params:xml:ns:xmpp-tls';
14 local secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption");
15 local secure_s2s_only = module:get_option("s2s_require_encryption");
17 module:add_handler("c2s_unauthed", "starttls", xmlns_starttls,
18 function (session, stanza)
19 if session.conn.starttls then
20 session.send(st.stanza("proceed", { xmlns = xmlns_starttls }));
21 session:reset_stream();
22 if session.host and hosts[session.host].ssl_ctx_in then
23 session.conn.set_sslctx(hosts[session.host].ssl_ctx_in);
25 session.conn.starttls();
26 session.log("info", "TLS negotiation started...");
27 session.secure = false;
29 session.log("warn", "Attempt to start TLS, but TLS is not available on this connection");
30 (session.sends2s or session.send)(st.stanza("failure", { xmlns = xmlns_starttls }));
35 module:add_handler("s2sin_unauthed", "starttls", xmlns_starttls,
36 function (session, stanza)
37 if session.conn.starttls then
38 session.sends2s(st.stanza("proceed", { xmlns = xmlns_starttls }));
39 session:reset_stream();
40 if session.to_host and hosts[session.to_host].ssl_ctx_in then
41 session.conn.set_sslctx(hosts[session.to_host].ssl_ctx_in);
43 session.conn.starttls();
44 session.log("info", "TLS negotiation started for incoming s2s...");
45 session.secure = false;
47 session.log("warn", "Attempt to start TLS, but TLS is not available on this s2s connection");
48 (session.sends2s or session.send)(st.stanza("failure", { xmlns = xmlns_starttls }));
54 local starttls_attr = { xmlns = xmlns_starttls };
55 module:add_event_hook("stream-features",
56 function (session, features)
57 if session.conn.starttls then
58 features:tag("starttls", starttls_attr);
59 if secure_auth_only then
60 features:tag("required"):up():up();
67 module:hook("s2s-stream-features",
69 local session, features = data.session, data.features;
70 if session.to_host and session.conn.starttls then
71 features:tag("starttls", starttls_attr):up();
72 if secure_s2s_only then
73 features:tag("required"):up():up();
80 -- For s2sout connections, start TLS if we can
81 module:hook_stanza(xmlns_stream, "features",
82 function (session, stanza)
83 module:log("debug", "Received features element");
84 if session.conn.starttls and stanza:child_with_ns(xmlns_starttls) then
85 module:log("%s is offering TLS, taking up the offer...", session.to_host);
86 session.sends2s("<starttls xmlns='"..xmlns_starttls.."'/>");
91 module:hook_stanza(xmlns_starttls, "proceed",
92 function (session, stanza)
93 module:log("debug", "Proceeding with TLS on s2sout...");
94 local format, to_host, from_host = string.format, session.to_host, session.from_host;
95 session:reset_stream();
96 session.conn.starttls(true);
97 session.secure = false;