prosody
d2816fb6c7ea
plugins/mod_tls.lua

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plugins/mod_tls.lua @ 2932:d2816fb6c7ea

mod_tls: Add s2s_allow_encryption option which, when set to false, disabled TLS for s2s
author Matthew Wild <mwild1@gmail.com>
date Wed, 24 Mar 2010 20:00:22 +0000
parent 2923:b7049746bd29
child 2933:e68ff49fa79b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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diff changeset
1 -- Prosody IM
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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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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 host = hosts[module.host];
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18
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19 local starttls_attr = { xmlns = xmlns_starttls };
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20
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21 --- Client-to-server TLS handling
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22 module:add_handler("c2s_unauthed", "starttls", xmlns_starttls,
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23 function (session, stanza)
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24 if session.conn.starttls and host.ssl_ctx_in then
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25 session.send(st.stanza("proceed", starttls_attr));
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26 session:reset_stream();
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ffbc57a4dea8 mod_tls: Offer the host-specific cert (when there is one) to incoming c2s/s2s connections, fixes #30 (thanks, albert, Flo, johnny, and all who nagged me :) )
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27 if session.host and hosts[session.host].ssl_ctx_in then
ffbc57a4dea8 mod_tls: Offer the host-specific cert (when there is one) to incoming c2s/s2s connections, fixes #30 (thanks, albert, Flo, johnny, and all who nagged me :) )
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28 session.conn.set_sslctx(hosts[session.host].ssl_ctx_in);
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29 end
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30 session.conn.starttls();
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31 session.log("info", "TLS negotiation started...");
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32 session.secure = false;
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33 else
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34 session.log("warn", "Attempt to start TLS, but TLS is not available on this connection");
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35 (session.sends2s or session.send)(st.stanza("failure", starttls_attr));
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36 session:close();
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37 end
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38 end);
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39
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40 module:add_event_hook("stream-features",
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41 function (session, features)
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42 if session.conn.starttls then
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43 features:tag("starttls", starttls_attr);
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44 if secure_auth_only then
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45 features:tag("required"):up():up();
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46 else
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47 features:up();
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48 end
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49 end
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50 end);
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51 ---
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52
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53 -- Stop here if the user doesn't want to allow s2s encryption
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54 if module:get_option("s2s_allow_encryption") == false then
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55 return;
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56 end
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57
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58 --- Server-to-server TLS handling
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59 module:add_handler("s2sin_unauthed", "starttls", xmlns_starttls,
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60 function (session, stanza)
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61 if session.conn.starttls and host.ssl_ctx_in then
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62 session.sends2s(st.stanza("proceed", starttls_attr));
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63 session:reset_stream();
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64 if session.to_host and hosts[session.to_host].ssl_ctx_in then
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65 session.conn.set_sslctx(hosts[session.to_host].ssl_ctx_in);
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66 end
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67 session.conn.starttls();
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68 session.log("info", "TLS negotiation started for incoming s2s...");
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69 session.secure = false;
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70 else
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71 session.log("warn", "Attempt to start TLS, but TLS is not available on this s2s connection");
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72 (session.sends2s or session.send)(st.stanza("failure", starttls_attr));
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73 session:close();
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74 end
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75 end);
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76
1875
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77
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78 module:hook("s2s-stream-features",
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79 function (data)
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80 local session, features = data.session, data.features;
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81 if session.to_host and session.conn.starttls then
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Waqas Hussain <waqas20@gmail.com>
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82 features:tag("starttls", starttls_attr);
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bfe120db1ec4 mod_tls: Mark starttls feature as <required/> if require_s2s_encryption is enabled
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83 if secure_s2s_only then
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84 features:tag("required"):up():up();
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85 else
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86 features:up();
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87 end
1875
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88 end
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89 end);
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90
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91 -- For s2sout connections, start TLS if we can
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92 module:hook_stanza(xmlns_stream, "features",
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93 function (session, stanza)
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94 module:log("debug", "Received features element");
1943
3d4c703d9333 mod_tls: Don't try to start TLS if we can't actually do it (thanks Florob)
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95 if session.conn.starttls and stanza:child_with_ns(xmlns_starttls) then
1875
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96 module:log("%s is offering TLS, taking up the offer...", session.to_host);
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97 session.sends2s("<starttls xmlns='"..xmlns_starttls.."'/>");
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98 return true;
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99 end
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100 end, 500);
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101
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102 module:hook_stanza(xmlns_starttls, "proceed",
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103 function (session, stanza)
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104 module:log("debug", "Proceeding with TLS on s2sout...");
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105 local format, to_host, from_host = string.format, session.to_host, session.from_host;
2802
ded1c649484a mod_tls: Set the sslctx on outgoing connections (possibly the cause of outgoing s2s connections not being encrypted)
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parents: 1981
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106 local ssl_ctx = session.from_host and hosts[session.from_host].ssl_ctx or global_ssl_ctx;
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107 session.conn.set_sslctx(ssl_ctx);
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108 session:reset_stream();
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109 session.conn.starttls(true);
1926
e1c5b537f240 mod_tls: Mark sessions as not secure when negotiating outward TLS, so they get marked secure later. Fixes missing (encrypted) for outgoing sessions in s2s:show(). Thanks albert, McKael :)
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parents: 1913
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110 session.secure = false;
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111 return true;
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112 end);