prosody
126401a7159f
plugins/mod_tls.lua

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plugins/mod_tls.lua @ 1912:126401a7159f

require_encryption deprecated, use c2s_require_encryption instead
author Matthew Wild <mwild1@gmail.com>
date Mon, 05 Oct 2009 14:59:30 +0100
parent 1911:bfe120db1ec4
child 1913:da49a59dff7c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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841d61be198f Remove version number from copyright headers
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diff changeset
1 -- Prosody IM
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90ce865eebd8 Update copyright notices for 2009
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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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cccd610a0ef9 Insert copyright/license headers
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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("require_s2s_encryption");
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16
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17 module:add_handler("c2s_unauthed", "starttls", xmlns_starttls,
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18 function (session, stanza)
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19 if session.conn.starttls then
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20 session.send(st.stanza("proceed", { xmlns = xmlns_starttls }));
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21 session:reset_stream();
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22 session.conn.starttls();
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23 session.log("info", "TLS negotiation started...");
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24 session.secure = false;
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25 else
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26 -- FIXME: What reply?
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27 session.log("warn", "Attempt to start TLS, but TLS is not available on this connection");
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28 end
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29 end);
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30
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31 module:add_handler("s2sin_unauthed", "starttls", xmlns_starttls,
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32 function (session, stanza)
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33 if session.conn.starttls then
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34 session.sends2s(st.stanza("proceed", { xmlns = xmlns_starttls }));
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35 session:reset_stream();
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36 session.conn.starttls();
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37 session.log("info", "TLS negotiation started for incoming s2s...");
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38 session.secure = false;
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39 else
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40 -- FIXME: What reply?
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41 session.log("warn", "Attempt to start TLS, but TLS is not available on this s2s connection");
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42 end
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43 end);
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44
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45
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46 local starttls_attr = { xmlns = xmlns_starttls };
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47 module:add_event_hook("stream-features",
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48 function (session, features)
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49 if session.conn.starttls then
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50 features:tag("starttls", starttls_attr);
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51 if secure_auth_only then
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52 features:tag("required"):up():up();
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53 else
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54 features:up();
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55 end
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56 end
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57 end);
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58
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59 module:add_event_hook("s2s-stream-features",
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60 function (session, features)
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61 -- This hook is possibly called once per host (at least if the
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62 -- remote server does not specify a to/from.
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63 if session.to_host and session.conn.starttls and not features:child_with_ns(xmlns_starttls) then
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64 features:tag("starttls", starttls_attr):up();
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65 if secure_s2s_only then
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66 features:tag("required"):up():up();
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67 else
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68 features:up();
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69 end
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70 end
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71 end);
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72
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73 -- For s2sout connections, start TLS if we can
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74 module:hook_stanza(xmlns_stream, "features",
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75 function (session, stanza)
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76 module:log("debug", "Received features element");
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77 if stanza:child_with_ns(xmlns_starttls) then
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78 module:log("%s is offering TLS, taking up the offer...", session.to_host);
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79 session.sends2s("<starttls xmlns='"..xmlns_starttls.."'/>");
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80 return true;
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81 end
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82 end, 500);
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83
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84 module:hook_stanza(xmlns_starttls, "proceed",
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85 function (session, stanza)
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86 module:log("debug", "Proceeding with TLS on s2sout...");
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87 local format, to_host, from_host = string.format, session.to_host, session.from_host;
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88 session:reset_stream();
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89 session.conn.starttls(true);
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90 return true;
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91 end);