prosody
afa20941e098
plugins/mod_tls.lua

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plugins/mod_tls.lua @ 2613:afa20941e098

s2smanager, mod_compression, mod_tls: Changed event.session to event.origin for s2s-stream-features event for consistency.
author Waqas Hussain <waqas20@gmail.com>
date Fri, 12 Feb 2010 04:30:17 +0500
parent 2607:35a5d1c5ea28
child 2623:1d34b45dec15
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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 secure_auth_only = module:get_option("c2s_require_encryption") or module:get_option("require_encryption");
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12 local secure_s2s_only = module:get_option("s2s_require_encryption");
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14 local xmlns_starttls = 'urn:ietf:params:xml:ns:xmpp-tls';
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15 local starttls_attr = { xmlns = xmlns_starttls };
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16 local starttls_proceed = st.stanza("proceed", starttls_attr);
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17 local starttls_failure = st.stanza("failure", starttls_attr);
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18 local c2s_feature = st.stanza("starttls", starttls_attr);
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19 local s2s_feature = st.stanza("starttls", starttls_attr);
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20 if secure_auth_only then c2s_feature:tag("required"):up(); end
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21 if secure_s2s_only then s2s_feature:tag("required"):up(); end
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22
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23 local global_ssl_ctx = prosody.global_ssl_ctx;
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24
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25 -- Hook <starttls/>
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26 module:hook("stanza/urn:ietf:params:xml:ns:xmpp-tls:starttls", function(event)
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27 local origin = event.origin;
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28 if origin.conn.starttls then
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29 (origin.sends2s or origin.send)(starttls_proceed);
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30 origin:reset_stream();
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31 local host = origin.to_host or origin.host;
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32 local ssl_ctx = host and hosts[host].ssl_ctx_in or global_ssl_ctx;
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33 origin.conn:starttls(ssl_ctx);
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34 origin.log("info", "TLS negotiation started for %s...", origin.type);
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35 origin.secure = false;
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36 else
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37 origin.log("warn", "Attempt to start TLS, but TLS is not available on this %s connection", origin.type);
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38 (origin.sends2s or origin.send)(starttls_failure);
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39 origin:close();
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40 end
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41 return true;
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42 end);
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43
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44 -- Advertize stream feature
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45 module:hook("stream-features", function(event)
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46 local origin, features = event.origin, event.features;
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47 if not origin.username and origin.conn.starttls then
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48 features:add_child(c2s_feature);
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49 end
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50 end);
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51 module:hook("s2s-stream-features", function(event)
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52 local origin, features = event.origin, event.features;
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53 if origin.to_host and origin.type ~= "s2sin" and origin.conn.starttls then
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54 features:add_child(s2s_feature);
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55 end
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56 end);
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57
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58 -- For s2sout connections, start TLS if we can
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59 module:hook_stanza("http://etherx.jabber.org/streams", "features", function (session, stanza)
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60 module:log("debug", "Received features element");
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61 if session.conn.starttls and stanza:child_with_ns(xmlns_starttls) then
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62 module:log("%s is offering TLS, taking up the offer...", session.to_host);
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63 session.sends2s("<starttls xmlns='"..xmlns_starttls.."'/>");
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64 return true;
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65 end
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66 end, 500);
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67 module:hook_stanza(xmlns_starttls, "proceed", function (session, stanza)
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68 module:log("debug", "Proceeding with TLS on s2sout...");
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69 session:reset_stream();
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70 local ssl_ctx = session.from_host and hosts[session.from_host].ssl_ctx or global_ssl_ctx;
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71 session.conn:starttls(ssl_ctx, true);
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72 session.secure = false;
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73 return true;
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74 end);