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plugins/mod_tls.lua @ 6112:819e00a86239
plugins/muc/muc.lib: Use more modern stanza methods
author | daurnimator <quae@daurnimator.com> |
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date | Wed, 19 Mar 2014 12:19:44 -0400 |
parent | 5993:ef11b8bab405 |
child | 6296:66fb7b7c668d |
rev | line source |
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1523
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Remove version number from copyright headers
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1 -- Prosody IM |
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Update copyright headers for 2010
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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Remove all trailing whitespace
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4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
6 -- COPYING file in the source package for more information. | |
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7 -- |
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8 |
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mod_tls: Let hosts without an 'ssl' option inherit it from their parent hosts.
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9 local config = require "core.configmanager"; |
3571
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certmanager, hostmanager, mod_tls: Move responsibility for creating per-host SSL contexts to mod_tls, meaning reloading certs is now as trivial as reloading mod_tls
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10 local create_context = require "core.certmanager".create_context; |
69
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11 local st = require "util.stanza"; |
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12 |
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13 local c2s_require_encryption = module:get_option("c2s_require_encryption") or module:get_option("require_encryption"); |
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14 local s2s_require_encryption = module:get_option("s2s_require_encryption"); |
2933 | 15 local allow_s2s_tls = module:get_option("s2s_allow_encryption") ~= false; |
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16 local s2s_secure_auth = module:get_option("s2s_secure_auth"); |
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17 |
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18 if s2s_secure_auth and s2s_require_encryption == false then |
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19 module:log("warn", "s2s_secure_auth implies s2s_require_encryption, but s2s_require_encryption is set to false"); |
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20 s2s_require_encryption = true; |
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21 end |
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22 |
2605 | 23 local xmlns_starttls = 'urn:ietf:params:xml:ns:xmpp-tls'; |
24 local starttls_attr = { xmlns = xmlns_starttls }; | |
25 local starttls_proceed = st.stanza("proceed", starttls_attr); | |
26 local starttls_failure = st.stanza("failure", starttls_attr); | |
27 local c2s_feature = st.stanza("starttls", starttls_attr); | |
28 local s2s_feature = st.stanza("starttls", starttls_attr); | |
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29 if c2s_require_encryption then c2s_feature:tag("required"):up(); end |
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30 if s2s_require_encryption then s2s_feature:tag("required"):up(); end |
2605 | 31 |
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mod_announce, mod_auth_anonymous, mod_c2s, mod_c2s, mod_component, mod_iq, mod_message, mod_presence, mod_tls: Access prosody.{hosts,bare_sessions,full_sessions} instead of the old globals
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32 local hosts = prosody.hosts; |
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33 local host = hosts[module.host]; |
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34 |
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35 local ssl_ctx_c2s, ssl_ctx_s2sout, ssl_ctx_s2sin; |
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36 do |
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37 local function get_ssl_cfg(typ) |
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38 local cfg_key = (typ and typ.."_" or "").."ssl"; |
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39 local ssl_config = config.rawget(module.host, cfg_key); |
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40 if not ssl_config then |
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41 local base_host = module.host:match("%.(.*)"); |
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42 ssl_config = config.get(base_host, cfg_key); |
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43 end |
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44 return ssl_config or typ and get_ssl_cfg(); |
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45 end |
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46 |
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47 local ssl_config, err = get_ssl_cfg("c2s"); |
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48 ssl_ctx_c2s, err = create_context(host.host, "server", ssl_config); -- for incoming client connections |
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49 if err then module:log("error", "Error creating context for c2s: %s", err); end |
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50 |
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51 ssl_config = get_ssl_cfg("s2s"); |
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52 ssl_ctx_s2sin, err = create_context(host.host, "server", ssl_config); -- for incoming server connections |
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53 ssl_ctx_s2sout = create_context(host.host, "client", ssl_config); -- for outgoing server connections |
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54 if err then module:log("error", "Error creating context for s2s: %s", err); end -- Both would have the same issue |
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55 end |
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56 |
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57 local function can_do_tls(session) |
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58 if not session.conn.starttls then |
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59 return false; |
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60 elseif session.ssl_ctx then |
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61 return true; |
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62 end |
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63 if session.type == "c2s_unauthed" then |
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64 session.ssl_ctx = ssl_ctx_c2s; |
2933 | 65 elseif session.type == "s2sin_unauthed" and allow_s2s_tls then |
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66 session.ssl_ctx = ssl_ctx_s2sin; |
2933 | 67 elseif session.direction == "outgoing" and allow_s2s_tls then |
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68 session.ssl_ctx = ssl_ctx_s2sout; |
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69 else |
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70 return false; |
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71 end |
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72 return session.ssl_ctx; |
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73 end |
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74 |
2605 | 75 -- Hook <starttls/> |
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76 module:hook("stanza/urn:ietf:params:xml:ns:xmpp-tls:starttls", function(event) |
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77 local origin = event.origin; |
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78 if can_do_tls(origin) then |
2605 | 79 (origin.sends2s or origin.send)(starttls_proceed); |
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80 origin:reset_stream(); |
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81 origin.conn:starttls(origin.ssl_ctx); |
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82 origin.log("debug", "TLS negotiation started for %s...", origin.type); |
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83 origin.secure = false; |
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84 else |
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85 origin.log("warn", "Attempt to start TLS, but TLS is not available on this %s connection", origin.type); |
2605 | 86 (origin.sends2s or origin.send)(starttls_failure); |
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87 origin:close(); |
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88 end |
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89 return true; |
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90 end); |
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91 |
2605 | 92 -- Advertize stream feature |
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93 module:hook("stream-features", function(event) |
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94 local origin, features = event.origin, event.features; |
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95 if can_do_tls(origin) then |
2605 | 96 features:add_child(c2s_feature); |
97 end | |
98 end); | |
99 module:hook("s2s-stream-features", function(event) | |
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100 local origin, features = event.origin, event.features; |
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101 if can_do_tls(origin) then |
2605 | 102 features:add_child(s2s_feature); |
103 end | |
104 end); | |
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105 |
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106 -- For s2sout connections, start TLS if we can |
2605 | 107 module:hook_stanza("http://etherx.jabber.org/streams", "features", function (session, stanza) |
108 module:log("debug", "Received features element"); | |
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109 if can_do_tls(session) and stanza:child_with_ns(xmlns_starttls) then |
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110 module:log("debug", "%s is offering TLS, taking up the offer...", session.to_host); |
2605 | 111 session.sends2s("<starttls xmlns='"..xmlns_starttls.."'/>"); |
112 return true; | |
113 end | |
114 end, 500); | |
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115 |
2605 | 116 module:hook_stanza(xmlns_starttls, "proceed", function (session, stanza) |
117 module:log("debug", "Proceeding with TLS on s2sout..."); | |
118 session:reset_stream(); | |
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119 session.conn:starttls(session.ssl_ctx); |
2605 | 120 session.secure = false; |
121 return true; | |
122 end); |