Software / code / prosody
Annotate
plugins/mod_s2s_auth_certs.lua @ 11710:26a8cc9d9eb7
net.resolvers.service: Only do DANE with secure SRV records
If this seems backwards, that' because it is but the API isn't really
designed to easily pass along details from each resolution step onto the
next.
| author | Kim Alvefur <zash@zash.se> |
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| date | Sun, 18 Jul 2021 23:25:45 +0200 |
| parent | 10454:6c3fccb75b38 |
| child | 11835:a405884c62f4 |
| rev | line source |
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mod_s2s_auth_certs: Split PKIX based certificate checking from mod_s2s into new plugin
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1 module:set_global(); |
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2 |
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3 local cert_verify_identity = require "util.x509".verify_identity; |
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4 local NULL = {}; |
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5 local log = module._log; |
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6 |
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7 module:hook("s2s-check-certificate", function(event) |
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8 local session, host, cert = event.session, event.host, event.cert; |
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9 local conn = session.conn:socket(); |
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10 local log = session.log or log; |
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11 |
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12 if not cert then |
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13 log("warn", "No certificate provided by %s", host or "unknown host"); |
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14 return; |
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15 end |
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16 |
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17 local chain_valid, errors; |
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18 if conn.getpeerverification then |
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19 chain_valid, errors = conn:getpeerverification(); |
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20 else |
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21 chain_valid, errors = false, { { "Chain verification not supported by this version of LuaSec" } }; |
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22 end |
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23 -- Is there any interest in printing out all/the number of errors here? |
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24 if not chain_valid then |
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25 log("debug", "certificate chain validation result: invalid"); |
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26 for depth, t in pairs(errors or NULL) do |
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27 log("debug", "certificate error(s) at depth %d: %s", depth-1, table.concat(t, ", ")) |
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28 end |
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29 session.cert_chain_status = "invalid"; |
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30 session.cert_chain_errors = errors; |
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31 else |
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32 log("debug", "certificate chain validation result: valid"); |
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33 session.cert_chain_status = "valid"; |
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34 |
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35 -- We'll go ahead and verify the asserted identity if the |
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36 -- connecting server specified one. |
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37 if host then |
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38 if cert_verify_identity(host, "xmpp-server", cert) then |
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39 session.cert_identity_status = "valid" |
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40 else |
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41 session.cert_identity_status = "invalid" |
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42 end |
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43 log("debug", "certificate identity validation result: %s", session.cert_identity_status); |
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44 end |
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45 end |
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46 end, 509); |
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47 |
