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annotate mod_log_slow_events/mod_log_slow_events.lua @ 5383:df11a2cbc7b7

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mod_http_oauth2: Implement RFC 7628 Proof Key for Code Exchange Likely to become mandatory in OAuth 2.1. Backwards compatible since the default 'plain' verifier would compare nil with nil if the relevant parameters are left out.
author Kim Alvefur <zash@zash.se>
date Sat, 29 Apr 2023 13:09:46 +0200
parents 3ba8fd1a297e
children
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1 module:set_global();
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2
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3 local time = require "socket".gettime;
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4 local base64_decode = require "util.encodings".base64.decode;
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5
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6 local max_seconds = module:get_option_number("log_slow_events_threshold", 0.5);
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7
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8 local measure_slow_event = module:measure("slow_events", "rate");
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9
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10 function event_wrapper(handlers, event_name, event_data)
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11 local start = time();
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12 local ret = handlers(event_name, event_data);
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13 local duration = time()-start;
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14 if duration > max_seconds then
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15 local data = {};
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16 if event_data then
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17 local function log_data(name, value)
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18 if value then
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19 table.insert(data, ("%s=%q"):format(name, value));
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20 return true;
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21 end
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22 end
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23 local sess = event_data.origin or event_data.session;
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24 if sess then
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25 log_data("ip", sess.ip);
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26 if not log_data("full_jid", sess.full_jid) then
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27 log_data("username", sess.username);
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28 end
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29 log_data("type", sess.type);
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30 log_data("host", sess.host);
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31 end
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32 local stanza = event_data.stanza;
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33 if stanza then
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34 log_data("stanza", tostring(stanza));
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35 else
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36 local request = event_data.request;
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37 if request then
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38 log_data("http_method", request.method);
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39 log_data("http_path", request.path);
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40 local auth = request.headers.authorization;
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41 if auth then
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42 local creds = auth:match("^Basic +(.+)$");
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43 if creds then
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44 local user = string.match(base64_decode(creds) or "", "^([^:]+):");
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45 log_data("http_user", user);
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46 end
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47 end
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48 end
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49 end
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50 end
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51 measure_slow_event();
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52 module:log("warn", "Slow event '%s' took %0.2fs: %s", event_name, duration, next(data) and table.concat(data, ", ") or "no recognised data");
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53 end
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54 return ret;
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55 end
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56
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57 local http_events = require "net.http.server"._events;
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58 module:wrap_object_event(http_events, false, event_wrapper);
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59
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60 module:wrap_event(false, event_wrapper);
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61 function module.add_host(module)
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62 module:wrap_event(false, event_wrapper);
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63 end