prosody
f424c9f1460b
plugins/mod_s2s_auth_certs.lua

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plugins/mod_s2s_auth_certs.lua @ 13357:f424c9f1460b

mod_mam: Use for loop in metadata query Some storage drivers will perform cleanup after the last iteration, but if only one step is taken this might be delayed until the garbage collector gets to it.
author Kim Alvefur <zash@zash.se>
date Sun, 26 Nov 2023 22:58:11 +0100
parent 13304:874600c982bd
child 13423:3c219effe707
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92d009af6eba 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 "prosody.util.x509".verify_identity;
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4 local NULL = {};
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5 local log = module._log;
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7 local measure_cert_statuses = module:metric("counter", "checked", "", "Certificate validation results",
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8 { "chain"; "identity" })
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9
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10 module:hook("s2s-check-certificate", function(event)
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11 local session, host, cert = event.session, event.host, event.cert;
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12 local conn = session.conn;
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13 local log = session.log or log;
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14
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15 local secure_hostname = conn.extra and conn.extra.secure_hostname;
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17 if not cert then
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18 log("warn", "No certificate provided by %s", host or "unknown host");
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19 return;
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20 end
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21
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22 local chain_valid, errors = conn:ssl_peerverification();
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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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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
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46 -- Check for DNSSEC-signed SRV hostname
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47 if secure_hostname and session.cert_identity_status ~= "valid" then
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48 if cert_verify_identity(secure_hostname, "xmpp-server", cert) then
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49 module:log("info", "Secure SRV name delegation %q -> %q", secure_hostname, host);
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50 session.cert_identity_status = "valid"
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51 end
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52 end
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53 end
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54 measure_cert_statuses:with_labels(session.cert_chain_status or "unknown", session.cert_identity_status or "unknown"):add(1);
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55 end, 509);
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