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annotate mod_s2s_log_certs/mod_s2s_log_certs.lua @ 5516:f25df3af02c1

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mod_client_management: Include client software version number in listing Should you ever wish to revoke a client by version number, e.g. for security reasons affecting certain versions, then it would be good to at the very least see which version is used. Also includes the OAuth2 software ID, an optional unique identifier that should be the same for all installations of a particular software.
author Kim Alvefur <zash@zash.se>
date Sat, 03 Jun 2023 19:21:39 +0200
parents 663e5d923ef0
children
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1 module:set_global();
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2
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3 local dm_load = require "util.datamanager".load;
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4 local dm_store = require "util.datamanager".store;
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5 local datetime = require "util.datetime".datetime;
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6
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7 local do_store = module:get_option_boolean(module:get_name().."_persist", false);
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8 local digest_algo = module:get_option_string(module:get_name().."_digest", "sha1");
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10 local function note_cert_digest(event)
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11 local session, remote_host, cert = event.session, event.host, event.cert;
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13 if not (remote_host and cert and cert.digest) then return end;
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14 local digest = cert:digest(digest_algo);
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16 local local_host = session.direction == "outgoing" and session.from_host or session.to_host;
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17 local chain_status = session.cert_chain_status;
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18 local identity_status = session.cert_identity_status;
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20 module:log("info", "%s has a %s %s certificate with %s: %s",
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21 remote_host,
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22 chain_status == "valid" and "trusted" or "untrusted",
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23 identity_status or "invalid",
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24 digest_algo:upper(),
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25 digest:upper():gsub("..",":%0"):sub(2));
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27 if do_store then
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28 local seen_certs = dm_load(remote_host, local_host, "s2s_certs") or {};
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30 digest = digest_algo..":"..digest;
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31 local this_cert = seen_certs[digest] or { first = datetime(); times = 0; }
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32 this_cert.last = datetime();
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33 this_cert.times = this_cert.times + 1;
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34 seen_certs[digest] = this_cert;
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35 chain_status = chain_status;
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36 identity_status = identity_status;
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37 dm_store(remote_host, local_host, "s2s_certs", seen_certs);
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38 end
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39 end
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40
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41 if module.wrap_event then
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42 -- 0.10
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43 module:wrap_event("s2s-check-certificate", function (handlers, event_name, event_data)
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44 local ret = handlers(event_name, event_data);
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45 note_cert_digest(event_data);
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46 return ret;
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47 end);
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48 else
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49 -- 0.9
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50 module:hook("s2s-check-certificate", note_cert_digest, 1000);
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51 end
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52 --[[
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53 function module.add_host(module)
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54 module:hook("s2s-check-certificate", note_cert_digest, 1000);
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55 end
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56 ]]