prosody-modules
1415fc2a0ac0
mod_s2s_auth_fingerprint/mod_s2s_auth_fingerprint.lua

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mod_s2s_auth_fingerprint/mod_s2s_auth_fingerprint.lua @ 939:1415fc2a0ac0

mod_s2s_auth_fingerprint: Make sure we actually got a certificate
author Kim Alvefur <zash@zash.se>
date Mon, 25 Mar 2013 06:40:05 +0100
parent 938:d0e71a3bd2c4
child 1131:e7b69d12fbfb
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Kim Alvefur <zash@zash.se>
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1 -- Copyright (C) 2013 Kim Alvefur
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2 -- This file is MIT/X11 licensed.
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3
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4 module:set_global();
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5
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6 local digest_algo = module:get_option_string(module:get_name().."_digest", "sha1");
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7
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8 local fingerprints = {};
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10 local function hashprep(h)
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11 return tostring(h):lower():gsub(":","");
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12 end
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14 for host, set in pairs(module:get_option("s2s_trusted_fingerprints", {})) do
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15 local host_set = {}
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16 if type(set) == "table" then -- list of fingerprints
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17 for i=1,#set do
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18 host_set[hashprep(set[i])] = true;
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19 end
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20 else -- assume single fingerprint
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21 host_set[hashprep(set)] = true;
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22 end
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23 fingerprints[host] = host_set;
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24 end
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26 module:hook("s2s-check-certificate", function(event)
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27 local session, host, cert = event.session, event.host, event.cert;
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29 local host_fingerprints = fingerprints[host];
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30 if cert and host_fingerprints then
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31 local digest = cert:digest(digest_algo);
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32 if host_fingerprints[digest] then
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33 session.cert_chain_status = "valid";
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34 session.cert_identity_status = "valid";
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35 return true;
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36 end
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37 end
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38 end);