Annotate

mod_s2s_auth_fingerprint/mod_s2s_auth_fingerprint.lua @ 3532:85c357b69eec

mod_csi_muc_priorities: Reduce importance of group chat messages This helps if you are in more noisy public channels than small private group chats. The short term plan is to give users the ability to set MUC JIDs as either high or low priority and use that. Long term it would be great to be able to automatically classify MUCs as public channels vs private group chats.
author Kim Alvefur <zash@zash.se>
date Mon, 01 Apr 2019 00:15:13 +0200
parent 1875:ee2cedb0f691
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1 -- Copyright (C) 2013-2014 Kim Alvefur
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2 -- This file is MIT/X11 licensed.
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4 module:set_global();
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6 local digest_algo = module:get_option_string(module:get_name().."_digest", "sha1");
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8 local fingerprints = {};
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10 local function hashprep(h)
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11 return tostring(h):gsub(":",""):lower();
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12 end
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14 local function hashfmt(h)
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15 return h:gsub("..","%0:", #h/2-1):upper();
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16 end
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18 for host, set in pairs(module:get_option("s2s_trusted_fingerprints", {})) do
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19 local host_set = {}
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20 if type(set) == "table" then -- list of fingerprints
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21 for i=1,#set do
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22 host_set[hashprep(set[i])] = true;
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23 end
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24 else -- assume single fingerprint
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25 host_set[hashprep(set)] = true;
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26 end
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27 fingerprints[host] = host_set;
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28 end
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30 module:hook("s2s-check-certificate", function(event)
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31 local session, host, cert = event.session, event.host, event.cert;
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33 local host_fingerprints = fingerprints[host];
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34 if host_fingerprints then
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35 local digest = cert and cert:digest(digest_algo);
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36 if host_fingerprints[digest] then
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37 module:log("info", "'%s' matched %s fingerprint %s", host, digest_algo:upper(), hashfmt(digest));
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38 session.cert_chain_status = "valid";
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39 session.cert_identity_status = "valid";
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40 return true;
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41 else
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42 module:log("warn", "'%s' has unknown %s fingerprint %s", host, digest_algo:upper(), hashfmt(digest));
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43 session.cert_chain_status = "invalid";
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44 session.cert_identity_status = "invalid";
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45 end
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46 end
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47 end);