mod_tls: Merged duplicate code.

[prosody.git] / plugins / mod_tls.lua

diff --git a/plugins/mod_tls.lua b/plugins/mod_tls.lua
index 706b42c948429d279b48220e7f570f9402bda0f8..9b7bc41518e1699e091c7f5c6fec16827d418ffa 100644 (file)
--- a/plugins/mod_tls.lua
+++ b/plugins/mod_tls.lua
@@ -14,45 +14,39 @@ local xmlns_starttls = 'urn:ietf:params:xml:ns:xmpp-tls';
 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");
 
-module:add_handler("c2s_unauthed", "starttls", xmlns_starttls,
-               function (session, stanza)
-                       if session.conn.starttls then
-                               session.send(st.stanza("proceed", { xmlns = xmlns_starttls }));
-                               session:reset_stream();
-                               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);
-               
-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 global_ssl_ctx = prosody.global_ssl_ctx;
+
+function starttls_handler(session, stanza)
+       if session.conn.starttls then
+               (session.sends2s or session.send)(st.stanza("proceed", { xmlns = xmlns_starttls }));
+               session:reset_stream();
+               local host = session.to_host or session.host;
+               local ssl_ctx = host and hosts[host].ssl_ctx_in or global_ssl_ctx;
+               session.conn:starttls(ssl_ctx);
+               session.log("info", "TLS negotiation started for %s...", session.type);
+               session.secure = false;
+       else
+               -- FIXME: What reply?
+               session.log("warn", "Attempt to start TLS, but TLS is not available on this %s connection", session.type);
+       end
+end
+
+module:hook("stanza/urn:ietf:params:xml:ns:xmpp-tls:starttls", function(event)
+       local origin, stanza = event.origin, event.stanza;
+       if origin.type == "c2s_unauthed" or origin.type == "s2sin_unauthed" then
+               starttls_handler(origin, stanza);
+       else
+               -- FIXME: What reply?
+               origin.log("warn", "Attempt to start TLS, but TLS is not available on this %s connection", origin.type);
+       end
+       return true;
+end);
 
 
 local starttls_attr = { xmlns = xmlns_starttls };
 module:add_event_hook("stream-features", 
                function (session, features)
-                       if session.conn.starttls then
+                       if not session.username and session.conn.starttls then
                                features:tag("starttls", starttls_attr);
                                if secure_auth_only then
                                        features:tag("required"):up():up();
@@ -65,7 +59,7 @@ module:add_event_hook("stream-features",
 module:hook("s2s-stream-features", 
                function (data)
                        local session, features = data.session, data.features;
-                       if session.to_host and session.conn.starttls then
+                       if session.to_host and session.type ~= "s2sin" and session.conn.starttls then
                                features:tag("starttls", starttls_attr):up();
                                if secure_s2s_only then
                                        features:tag("required"):up():up();
@@ -89,9 +83,9 @@ module:hook_stanza(xmlns_stream, "features",
 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);
+                       local ssl_ctx = session.from_host and hosts[session.from_host].ssl_ctx or global_ssl_ctx;
+                       session.conn:starttls(ssl_ctx, true);
                        session.secure = false;
                        return true;
                end);