X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=plugins%2Fmod_tls.lua;h=bab2202ea7eb01b0216944e40aa2359ca6a9a07c;hb=a438279b6409d9edb636ae948161c6ccf067472b;hp=22819cd18c1d1601ddf03add0ab6dbc2f6388ec4;hpb=b4cb1e8079c6d93fdb6997327f06b8461244175b;p=prosody.git
diff --git a/plugins/mod_tls.lua b/plugins/mod_tls.lua
index 22819cd1..bab2202e 100644
--- a/plugins/mod_tls.lua
+++ b/plugins/mod_tls.lua
@@ -1,103 +1,116 @@
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
---
+--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
+local config = require "core.configmanager";
+local create_context = require "core.certmanager".create_context;
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 allow_s2s_tls = module:get_option("s2s_allow_encryption") ~= false;
+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 hosts = prosody.hosts;
local host = hosts[module.host];
-module:add_handler("c2s_unauthed", "starttls", xmlns_starttls,
- function (session, stanza)
- if session.conn.starttls and host.ssl_ctx_in 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
- session.log("warn", "Attempt to start TLS, but TLS is not available on this connection");
- (session.sends2s or session.send)(st.stanza("failure", { xmlns = xmlns_starttls }));
- session:close();
- end
- end);
-
-module:add_handler("s2sin_unauthed", "starttls", xmlns_starttls,
- function (session, stanza)
- if session.conn.starttls and host.ssl_ctx_in 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
- session.log("warn", "Attempt to start TLS, but TLS is not available on this s2s connection");
- (session.sends2s or session.send)(st.stanza("failure", { xmlns = xmlns_starttls }));
- session:close();
- end
- end);
+local ssl_ctx_c2s, ssl_ctx_s2sout, ssl_ctx_s2sin;
+do
+ local function get_ssl_cfg(typ)
+ local cfg_key = (typ and typ.."_" or "").."ssl";
+ local ssl_config = config.rawget(module.host, cfg_key);
+ if not ssl_config then
+ local base_host = module.host:match("%.(.*)");
+ ssl_config = config.get(base_host, cfg_key);
+ end
+ return ssl_config or typ and get_ssl_cfg();
+ end
+ local ssl_config, err = get_ssl_cfg("c2s");
+ ssl_ctx_c2s, err = create_context(host.host, "server", ssl_config); -- for incoming client connections
+ if err then module:log("error", "Error creating context for c2s: %s", err); 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);
+ ssl_config = get_ssl_cfg("s2s");
+ ssl_ctx_s2sin, err = create_context(host.host, "server", ssl_config); -- for incoming server connections
+ ssl_ctx_s2sout = create_context(host.host, "client", ssl_config); -- for outgoing server connections
+ if err then module:log("error", "Error creating context for s2s: %s", err); end -- Both would have the same issue
+end
+
+local function can_do_tls(session)
+ if not session.conn.starttls then
+ return false;
+ elseif session.ssl_ctx then
+ return true;
+ end
+ if session.type == "c2s_unauthed" then
+ session.ssl_ctx = ssl_ctx_c2s;
+ elseif session.type == "s2sin_unauthed" and allow_s2s_tls then
+ session.ssl_ctx = ssl_ctx_s2sin;
+ elseif session.direction == "outgoing" and allow_s2s_tls then
+ session.ssl_ctx = ssl_ctx_s2sout;
+ else
+ return false;
+ end
+ return session.ssl_ctx;
+end
+
+-- Hook
+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();
+ origin.conn:starttls(origin.ssl_ctx);
+ origin.log("debug", "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.conn.starttls then
- features:tag("starttls", starttls_attr);
- 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("");
- return true;
- end
- end, 500);
+module:hook_stanza("http://etherx.jabber.org/streams", "features", function (session, stanza)
+ module:log("debug", "Received features element");
+ if can_do_tls(session) and stanza:child_with_ns(xmlns_starttls) then
+ module:log("debug", "%s is offering TLS, taking up the offer...", session.to_host);
+ session.sends2s("");
+ 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;
- local ssl_ctx = session.from_host and hosts[session.from_host].ssl_ctx or global_ssl_ctx;
- session.conn.set_sslctx(ssl_ctx);
- session:reset_stream();
- session.conn.starttls(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();
+ session.conn:starttls(session.ssl_ctx);
+ session.secure = false;
+ return true;
+end);