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-rw-r--r--plugins/mod_tls.lua60
1 files changed, 54 insertions, 6 deletions
diff --git a/plugins/mod_tls.lua b/plugins/mod_tls.lua
index 8926edfc..e854d676 100644
--- a/plugins/mod_tls.lua
+++ b/plugins/mod_tls.lua
@@ -6,14 +6,13 @@
-- COPYING file in the source package for more information.
--
-
-
local st = require "util.stanza";
-local xmlns_starttls ='urn:ietf:params:xml:ns:xmpp-tls';
+local xmlns_stream = 'http://etherx.jabber.org/streams';
+local xmlns_starttls = 'urn:ietf:params:xml:ns:xmpp-tls';
-local config = require "core.configmanager";
-local secure_auth_only = config.get("*", "core", "require_encryption");
+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)
@@ -29,9 +28,24 @@ module:add_handler("c2s_unauthed", "starttls", 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();
+ 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)
+ function (session, features)
if session.conn.starttls then
features:tag("starttls", starttls_attr);
if secure_auth_only then
@@ -41,3 +55,37 @@ module:add_event_hook("stream-features",
end
end
end);
+
+module:add_event_hook("s2s-stream-features",
+ function (session, features)
+ -- This hook is possibly called once per host (at least if the
+ -- remote server does not specify a to/from.
+ if session.to_host and session.conn.starttls and not features:child_with_ns(xmlns_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 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);
+ return true;
+ end);