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comparison plugins/mod_tls.lua @ 5685:f965ac6b7ce1

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mod_tls: Refactor to allow separate SSL configuration for c2s and s2s connections
author Kim Alvefur <zash@zash.se>
date Thu, 13 Jun 2013 17:47:45 +0200
parents ec3accda44d3
children 4a244d10a3ca
comparison
equal deleted inserted replaced
5684:5554029d759b 5685:f965ac6b7ce1
21 local c2s_feature = st.stanza("starttls", starttls_attr); 21 local c2s_feature = st.stanza("starttls", starttls_attr);
22 local s2s_feature = st.stanza("starttls", starttls_attr); 22 local s2s_feature = st.stanza("starttls", starttls_attr);
23 if secure_auth_only then c2s_feature:tag("required"):up(); end 23 if secure_auth_only then c2s_feature:tag("required"):up(); end
24 if secure_s2s_only then s2s_feature:tag("required"):up(); end 24 if secure_s2s_only then s2s_feature:tag("required"):up(); end
25 25
26 local global_ssl_ctx = prosody.global_ssl_ctx;
27
28 local hosts = prosody.hosts; 26 local hosts = prosody.hosts;
29 local host = hosts[module.host]; 27 local host = hosts[module.host];
30 28
29 local ssl_ctx_c2s, ssl_ctx_s2sout, ssl_ctx_s2sin;
30 do
31 local function get_ssl_cfg(typ)
32 local cfg_key = (typ and typ.."_" or "").."ssl";
33 local ssl_config = config.rawget(module.host, cfg_key);
34 if not ssl_config then
35 local base_host = module.host:match("%.(.*)");
36 ssl_config = config.get(base_host, cfg_key);
37 end
38 return ssl_config or typ and get_ssl_cfg();
39 end
40
41 local ssl_config, err = get_ssl_cfg("c2s");
42 ssl_ctx_c2s, err = create_context(host.host, "server", ssl_config); -- for incoming client connections
43 if err then module:log("error", "Error creating context for c2s: %s", err); end
44
45 ssl_config = get_ssl_cfg("s2s");
46 ssl_ctx_s2sin, err = create_context(host.host, "server", ssl_config); -- for incoming server connections
47 ssl_ctx_s2sout = create_context(host.host, "client", ssl_config); -- for outgoing server connections
48 if err then module:log("error", "Error creating context for s2s: %s", err); end -- Both would have the same issue
49 end
50
31 local function can_do_tls(session) 51 local function can_do_tls(session)
52 if not session.conn.starttls then
53 return false;
54 elseif session.ssl_ctx then
55 return true;
56 end
32 if session.type == "c2s_unauthed" then 57 if session.type == "c2s_unauthed" then
33 return session.conn.starttls and host.ssl_ctx_in; 58 module:log("debug", "session.ssl_ctx = ssl_ctx_c2s;")
59 session.ssl_ctx = ssl_ctx_c2s;
34 elseif session.type == "s2sin_unauthed" and allow_s2s_tls then 60 elseif session.type == "s2sin_unauthed" and allow_s2s_tls then
35 return session.conn.starttls and host.ssl_ctx_in; 61 session.ssl_ctx = ssl_ctx_s2sin;
36 elseif session.direction == "outgoing" and allow_s2s_tls then 62 elseif session.direction == "outgoing" and allow_s2s_tls then
37 return session.conn.starttls and host.ssl_ctx; 63 session.ssl_ctx = ssl_ctx_s2sout;
64 else
65 return false;
38 end 66 end
39 return false; 67 return session.ssl_ctx;
40 end 68 end
41 69
42 -- Hook <starttls/> 70 -- Hook <starttls/>
43 module:hook("stanza/urn:ietf:params:xml:ns:xmpp-tls:starttls", function(event) 71 module:hook("stanza/urn:ietf:params:xml:ns:xmpp-tls:starttls", function(event)
44 local origin = event.origin; 72 local origin = event.origin;
45 if can_do_tls(origin) then 73 if can_do_tls(origin) then
46 (origin.sends2s or origin.send)(starttls_proceed); 74 (origin.sends2s or origin.send)(starttls_proceed);
47 origin:reset_stream(); 75 origin:reset_stream();
48 local host = origin.to_host or origin.host; 76 origin.conn:starttls(origin.ssl_ctx);
49 local ssl_ctx = host and hosts[host].ssl_ctx_in or global_ssl_ctx;
50 origin.conn:starttls(ssl_ctx);
51 origin.log("debug", "TLS negotiation started for %s...", origin.type); 77 origin.log("debug", "TLS negotiation started for %s...", origin.type);
52 origin.secure = false; 78 origin.secure = false;
53 else 79 else
54 origin.log("warn", "Attempt to start TLS, but TLS is not available on this %s connection", origin.type); 80 origin.log("warn", "Attempt to start TLS, but TLS is not available on this %s connection", origin.type);
55 (origin.sends2s or origin.send)(starttls_failure); 81 (origin.sends2s or origin.send)(starttls_failure);
83 end, 500); 109 end, 500);
84 110
85 module:hook_stanza(xmlns_starttls, "proceed", function (session, stanza) 111 module:hook_stanza(xmlns_starttls, "proceed", function (session, stanza)
86 module:log("debug", "Proceeding with TLS on s2sout..."); 112 module:log("debug", "Proceeding with TLS on s2sout...");
87 session:reset_stream(); 113 session:reset_stream();
88 local ssl_ctx = session.from_host and hosts[session.from_host].ssl_ctx or global_ssl_ctx; 114 session.conn:starttls(session.ssl_ctx);
89 session.conn:starttls(ssl_ctx);
90 session.secure = false; 115 session.secure = false;
91 return true; 116 return true;
92 end); 117 end);
93
94 function module.load()
95 local ssl_config = config.rawget(module.host, "ssl");
96 if not ssl_config then
97 local base_host = module.host:match("%.(.*)");
98 ssl_config = config.get(base_host, "ssl");
99 end
100 host.ssl_ctx = create_context(host.host, "client", ssl_config); -- for outgoing connections
101 host.ssl_ctx_in = create_context(host.host, "server", ssl_config); -- for incoming connections
102 end
103
104 function module.unload()
105 host.ssl_ctx = nil;
106 host.ssl_ctx_in = nil;
107 end