prosody
da16a5c0df85
plugins/mod_tls.lua

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plugins/mod_tls.lua @ 2543:da16a5c0df85

mod_tls: Set the sslctx on outgoing connections (possibly the cause of outgoing s2s connections not being encrypted)
author Matthew Wild <mwild1@gmail.com>
date Sun, 31 Jan 2010 15:39:49 +0000
parent 2542:0a78847b38e2
child 2544:b68cbc664d18
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2009 Matthew Wild
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3 -- Copyright (C) 2008-2009 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 local st = require "util.stanza";
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10
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11 local xmlns_stream = 'http://etherx.jabber.org/streams';
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12 local xmlns_starttls = 'urn:ietf:params:xml:ns:xmpp-tls';
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13
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14 local secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption");
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15 local secure_s2s_only = module:get_option("s2s_require_encryption");
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16
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17 local global_ssl_ctx = prosody.global_ssl_ctx;
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18
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19 module:add_handler("c2s_unauthed", "starttls", xmlns_starttls,
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20 function (session, stanza)
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21 if session.conn.starttls then
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22 session.send(st.stanza("proceed", { xmlns = xmlns_starttls }));
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23 session:reset_stream();
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24 local ssl_ctx = session.host and hosts[session.host].ssl_ctx_in or global_ssl_ctx;
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25 session.conn:starttls(ssl_ctx);
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26 session.log("info", "TLS negotiation started...");
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27 session.secure = false;
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28 else
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29 -- FIXME: What reply?
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30 session.log("warn", "Attempt to start TLS, but TLS is not available on this connection");
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31 end
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32 end);
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33
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34 module:add_handler("s2sin_unauthed", "starttls", xmlns_starttls,
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35 function (session, stanza)
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36 if session.conn.starttls then
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37 session.sends2s(st.stanza("proceed", { xmlns = xmlns_starttls }));
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38 session:reset_stream();
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39 local ssl_ctx = session.to_host and hosts[session.to_host].ssl_ctx_in or global_ssl_ctx;
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40 session.conn:starttls(ssl_ctx);
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41 session.log("info", "TLS negotiation started for incoming s2s...");
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42 session.secure = false;
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43 else
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44 -- FIXME: What reply?
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45 session.log("warn", "Attempt to start TLS, but TLS is not available on this s2s connection");
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46 end
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47 end);
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48
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49
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50 local starttls_attr = { xmlns = xmlns_starttls };
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51 module:add_event_hook("stream-features",
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52 function (session, features)
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53 if session.conn.starttls then
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54 features:tag("starttls", starttls_attr);
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55 if secure_auth_only then
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56 features:tag("required"):up():up();
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57 else
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58 features:up();
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59 end
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60 end
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61 end);
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62
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63 module:hook("s2s-stream-features",
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64 function (data)
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65 local session, features = data.session, data.features;
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66 if session.to_host and session.conn.starttls then
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67 features:tag("starttls", starttls_attr):up();
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68 if secure_s2s_only then
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69 features:tag("required"):up():up();
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70 else
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71 features:up();
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72 end
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73 end
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74 end);
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75
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76 -- For s2sout connections, start TLS if we can
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77 module:hook_stanza(xmlns_stream, "features",
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78 function (session, stanza)
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79 module:log("debug", "Received features element");
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80 if session.conn.starttls and stanza:child_with_ns(xmlns_starttls) then
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81 module:log("%s is offering TLS, taking up the offer...", session.to_host);
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82 session.sends2s("<starttls xmlns='"..xmlns_starttls.."'/>");
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83 return true;
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84 end
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85 end, 500);
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86
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87 module:hook_stanza(xmlns_starttls, "proceed",
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88 function (session, stanza)
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89 module:log("debug", "Proceeding with TLS on s2sout...");
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90 local format, to_host, from_host = string.format, session.to_host, session.from_host;
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91 session:reset_stream();
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92 local ssl_ctx = session.from_host and hosts[session.from_host].ssl_ctx or global_ssl_ctx;
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93 session.conn:starttls(ssl_ctx, true);
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94 session.secure = false;
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95 return true;
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96 end);