Merge with tip.

[prosody.git] / plugins / mod_tls.lua

diff --git a/plugins/mod_tls.lua b/plugins/mod_tls.lua
index b5ca5015fe23162599b5379ccf5d6449827bcac5..706b42c948429d279b48220e7f570f9402bda0f8 100644 (file)
--- a/plugins/mod_tls.lua
+++ b/plugins/mod_tls.lua
@@ -1,32 +1,97 @@
+-- Prosody IM
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
+-- 
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
 
 local st = require "util.stanza";
 
---local sessions = sessions;
+local xmlns_stream = 'http://etherx.jabber.org/streams';
+local xmlns_starttls = 'urn:ietf:params:xml:ns:xmpp-tls';
 
-local t_insert = table.insert;
+local secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption");
+local secure_s2s_only = module:get_option("s2s_require_encryption");
 
-local log = require "util.logger".init("mod_starttls");
-
-local xmlns_starttls ='urn:ietf:params:xml:ns:xmpp-tls';
-
-add_handler("c2s_unauthed", "starttls", xmlns_starttls,
+module:add_handler("c2s_unauthed", "starttls", xmlns_starttls,
                function (session, stanza)
                        if session.conn.starttls then
                                session.send(st.stanza("proceed", { xmlns = xmlns_starttls }));
-                               -- FIXME: I'm commenting the below, not sure why it was necessary
-                               -- sessions[session.conn] = nil;
                                session:reset_stream();
-                               session.conn.starttls();
+                               if session.host and hosts[session.host].ssl_ctx_in then
+                                       session.conn:set_sslctx(hosts[session.host].ssl_ctx_in);
+                               end
+                               session.conn:starttls();
                                session.log("info", "TLS negotiation started...");
+                               session.secure = false;
                        else
                                -- FIXME: What reply?
                                session.log("warn", "Attempt to start TLS, but TLS is not available on this connection");
                        end
                end);
                
-add_event_hook("stream-features", 
-                                       function (session, features)                                                                                            
-                                               if session.conn.starttls then
-                                                       t_insert(features, "<starttls xmlns='"..xmlns_starttls.."'/>");
-                                               end
-                                       end);
+module:add_handler("s2sin_unauthed", "starttls", xmlns_starttls,
+               function (session, stanza)
+                       if session.conn.starttls then
+                               session.sends2s(st.stanza("proceed", { xmlns = xmlns_starttls }));
+                               session:reset_stream();
+                               if session.to_host and hosts[session.to_host].ssl_ctx_in then
+                                       session.conn:set_sslctx(hosts[session.to_host].ssl_ctx_in);
+                               end
+                               session.conn:starttls();
+                               session.log("info", "TLS negotiation started for incoming s2s...");
+                               session.secure = false;
+                       else
+                               -- FIXME: What reply?
+                               session.log("warn", "Attempt to start TLS, but TLS is not available on this s2s connection");
+                       end
+               end);
+
+
+local starttls_attr = { xmlns = xmlns_starttls };
+module:add_event_hook("stream-features", 
+               function (session, features)
+                       if session.conn.starttls then
+                               features:tag("starttls", starttls_attr);
+                               if secure_auth_only then
+                                       features:tag("required"):up():up();
+                               else
+                                       features:up();
+                               end
+                       end
+               end);
+
+module:hook("s2s-stream-features", 
+               function (data)
+                       local session, features = data.session, data.features;
+                       if session.to_host and session.conn.starttls then
+                               features:tag("starttls", starttls_attr):up();
+                               if secure_s2s_only then
+                                       features:tag("required"):up():up();
+                               else
+                                       features:up();
+                               end
+                       end
+               end);
+
+-- For s2sout connections, start TLS if we can
+module:hook_stanza(xmlns_stream, "features",
+               function (session, stanza)
+                       module:log("debug", "Received features element");
+                       if session.conn.starttls and stanza:child_with_ns(xmlns_starttls) then
+                               module:log("%s is offering TLS, taking up the offer...", session.to_host);
+                               session.sends2s("<starttls xmlns='"..xmlns_starttls.."'/>");
+                               return true;
+                       end
+               end, 500);
+
+module:hook_stanza(xmlns_starttls, "proceed",
+               function (session, stanza)
+                       module:log("debug", "Proceeding with TLS on s2sout...");
+                       local format, to_host, from_host = string.format, session.to_host, session.from_host;
+                       session:reset_stream();
+                       session.conn:starttls(true);
+                       session.secure = false;
+                       return true;
+               end);