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annotate mod_log_slow_events/mod_log_slow_events.lua @ 2670:6e01878103c0

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mod_smacks: Ignore user when writing or reading session_cache on prosody 0.9 At least under some circumstances it seems that session.username is nil when a user tries to resume his session in prosody 0.9. The username is not relevant when no limiting is done (limiting the number of entries in the session cache is only possible in prosody 0.10), so this commit removes the usage of the username when accessing the prosody 0.9 session cache.
author tmolitor <thilo@eightysoft.de>
date Thu, 06 Apr 2017 02:12:14 +0200
parents 8c0bf3151e37
children 5e74028557dc
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1 local time = require "socket".gettime;
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2 local base64_decode = require "util.encodings".base64.decode;
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4 local max_seconds = module:get_option_number("log_slow_events_threshold", 0.5);
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5
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6 local measure_slow_event = module:measure("slow_events", "rate");
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7
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8 function event_wrapper(handlers, event_name, event_data)
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9 local start = time();
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10 local ret = handlers(event_name, event_data);
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11 local duration = time()-start;
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12 if duration > max_seconds then
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13 local data = {};
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14 if event_data then
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15 local function log_data(name, value)
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16 if value then
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17 table.insert(data, ("%s=%q"):format(name, value));
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18 return true;
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19 end
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20 end
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21 local sess = event_data.origin or event_data.session;
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22 if sess then
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23 log_data("ip", sess.ip);
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24 if not log_data("full_jid", sess.full_jid) then
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25 log_data("username", sess.username);
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26 end
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27 log_data("type", sess.type);
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28 log_data("host", sess.host);
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29 end
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30 local stanza = event_data.stanza;
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31 if stanza then
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32 log_data("stanza", tostring(stanza));
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33 else
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34 local request = event_data.request;
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35 if request then
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36 log_data("http_method", request.method);
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37 log_data("http_path", request.path);
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38 local auth = request.headers.authorization;
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39 if auth then
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40 local creds = auth:match("^Basic +(.+)$");
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41 if creds then
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42 local user = string.match(base64_decode(creds) or "", "^([^:]+):");
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43 log_data("http_user", user);
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44 end
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45 end
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46 end
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47 end
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48 end
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49 measure_slow_event();
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50 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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51 end
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52 return ret;
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53 end
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55 module:wrap_event(false, event_wrapper);
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56 local http_events = require "net.http.server"._events;
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57 module:wrap_object_event(http_events, false, event_wrapper);
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58