aboutsummaryrefslogtreecommitdiffstats
path: root/plugins/mod_tls.lua
diff options
context:
space:
mode:
Diffstat (limited to 'plugins/mod_tls.lua')
-rw-r--r--plugins/mod_tls.lua139
1 files changed, 65 insertions, 74 deletions
diff --git a/plugins/mod_tls.lua b/plugins/mod_tls.lua
index 7153e48a..8f688d61 100644
--- a/plugins/mod_tls.lua
+++ b/plugins/mod_tls.lua
@@ -8,88 +8,79 @@
local st = require "util.stanza";
-local xmlns_stream = 'http://etherx.jabber.org/streams';
-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");
+local xmlns_starttls = 'urn:ietf:params:xml:ns:xmpp-tls';
+local starttls_attr = { xmlns = xmlns_starttls };
+local starttls_proceed = st.stanza("proceed", starttls_attr);
+local starttls_failure = st.stanza("failure", starttls_attr);
+local c2s_feature = st.stanza("starttls", starttls_attr);
+local s2s_feature = st.stanza("starttls", starttls_attr);
+if secure_auth_only then c2s_feature:tag("required"):up(); end
+if secure_s2s_only then s2s_feature:tag("required"):up(); end
+
local global_ssl_ctx = prosody.global_ssl_ctx;
-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();
- local ssl_ctx = session.host and hosts[session.host].ssl_ctx_in or global_ssl_ctx;
- session.conn:starttls(ssl_ctx);
- 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();
- local ssl_ctx = session.to_host and hosts[session.to_host].ssl_ctx_in or global_ssl_ctx;
- session.conn:starttls(ssl_ctx);
- 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 host = hosts[module.host];
+local function can_do_tls(session)
+ if session.type == "c2s_unauthed" then
+ return session.username and session.conn.starttls and host.ssl_ctx_in;
+ elseif session.type == "s2sin_unauthed" then
+ return origin.to_host and origin.conn.starttls and host.ssl_ctx_in;
+ end
+ return false;
+end
-local starttls_attr = { xmlns = xmlns_starttls };
-module:add_event_hook("stream-features",
- function (session, features)
- if not session.username and 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);
+-- Hook <starttls/>
+module:hook("stanza/urn:ietf:params:xml:ns:xmpp-tls:starttls", function(event)
+ local origin = event.origin;
+ if can_do_tls(origin) then
+ (origin.sends2s or origin.send)(starttls_proceed);
+ origin:reset_stream();
+ local host = origin.to_host or origin.host;
+ local ssl_ctx = host and hosts[host].ssl_ctx_in or global_ssl_ctx;
+ origin.conn:starttls(ssl_ctx);
+ origin.log("info", "TLS negotiation started for %s...", origin.type);
+ origin.secure = false;
+ else
+ origin.log("warn", "Attempt to start TLS, but TLS is not available on this %s connection", origin.type);
+ (origin.sends2s or origin.send)(starttls_failure);
+ origin:close();
+ end
+ return true;
+end);
-module:hook("s2s-stream-features",
- function (data)
- local session, features = data.session, data.features;
- 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();
- else
- features:up();
- end
- end
- end);
+-- Advertize stream feature
+module:hook("stream-features", function(event)
+ local origin, features = event.origin, event.features;
+ if can_do_tls(origin) then
+ features:add_child(c2s_feature);
+ end
+end);
+module:hook("s2s-stream-features", function(event)
+ local origin, features = event.origin, event.features;
+ if can_do_tls(origin) then
+ features:add_child(s2s_feature);
+ 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("http://etherx.jabber.org/streams", "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...");
- session:reset_stream();
- 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);
+module:hook_stanza(xmlns_starttls, "proceed", function (session, stanza)
+ module:log("debug", "Proceeding with TLS on s2sout...");
+ session:reset_stream();
+ 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);