prosody-modules
1e90054c3ac5
mod_tls_policy/mod_tls_policy.lua

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mod_tls_policy/mod_tls_policy.lua @ 1600:1e90054c3ac5

mod_tls_policy: New module to enforce per-host TLS parameter policies
author Kim Alvefur <zash@zash.se>
date Fri, 30 Jan 2015 12:12:06 +0100
child 1601:c5ca63ac0e1b
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rev   line source
1600
1e90054c3ac5 mod_tls_policy: New module to enforce per-host TLS parameter policies
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1
1e90054c3ac5 mod_tls_policy: New module to enforce per-host TLS parameter policies
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2 assert(require"ssl.core".info, "Incompatible LuaSec version");
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3
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4 local function hook(event_name, typ, policy)
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5 if not policy then return end
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6 if policy == "FS" then
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7 policy = { key = "DH$" };
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8 elseif type(policy) == "string" then
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9 policy = { cipher = policy };
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10 end
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12 module:hook(event_name, function (event)
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13 local origin = event.origin;
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14 if origin.encrypted then
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15 local info = origin.conn:socket():info();
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16 for key, what in pairs(policy) do
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17 module:log("debug", "Does info[%q] = %s match %s ?", key, tostring(info[key]), tostring(what));
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18 if (type(what) == "number" and what < info[key] ) or (type(what) == "string" and not what:match(info[key])) then
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19 origin:close({ condition = "policy-violation", text = "Cipher not acceptable" });
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20 return false;
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21 end
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22 module:log("debug", "Seems so");
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23 end
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24 module:log("debug", "Policy matches");
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25 end
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26 end, 1000);
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27 end
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28
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29 local policy = module:get_option(module.name, {});
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30
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31 if type(policy) == "string" then
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32 policy = { c2s = policy, s2s = policy };
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33 end
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34
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35 hook("stream-features", "c2s", policy.c2s);
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36 hook("s2s-stream-features", "s2sin", policy.s2sin or policy.s2s);
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37 hook("stanza/http://etherx.jabber.org/streams:features", "s2sout", policy.s2sout or policy.s2s);