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annotate mod_s2s_log_certs/mod_s2s_log_certs.lua @ 5354:39d59d857bfb

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mod_http_oauth2: Use new mod_cron API for periodic cleanup Less frequent but this isn't that important after all since, as the comment states, expired codes are not usable anyway. They're also not that large so memory usage probably doesn't matter.
author Kim Alvefur <zash@zash.se>
date Sat, 22 Apr 2023 11:59:52 +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 ]]