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mod_s2s_auth_fingerprint/mod_s2s_auth_fingerprint.lua @ 5941:5c4e102e2563 default tip
mod_pubsub_serverinfo: fix bool logic when reading config
author | Guus der Kinderen <guus.der.kinderen@gmail.com> |
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date | Mon, 03 Jun 2024 12:52:26 +0200 |
parent | 1875:ee2cedb0f691 |
rev | line source |
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mod_s2s_auth_fingerprint: Allways pin fingerprints
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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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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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9 |
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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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13 |
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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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17 |
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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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32 |
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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); |