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annotate mod_log_slow_events/mod_log_slow_events.lua @ 2016:279885fd9728

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mod_mam: Add support for trimming old archived messages
author Kim Alvefur <zash@zash.se>
date Tue, 19 Jan 2016 13:34:16 +0100
parents efc1d674eac0
children 8c0bf3151e37
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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 function event_wrapper(handlers, event_name, event_data)
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7 local start = time();
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8 local ret = handlers(event_name, event_data);
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9 local duration = time()-start;
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10 if duration > max_seconds then
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11 local data = {};
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12 if event_data then
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13 local function log_data(name, value)
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14 if value then
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15 table.insert(data, ("%s=%q"):format(name, value));
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16 return true;
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17 end
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18 end
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19 local sess = event_data.origin or event_data.session;
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20 if sess then
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21 log_data("ip", sess.ip);
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22 if not log_data("full_jid", sess.full_jid) then
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23 log_data("username", sess.username);
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24 end
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25 log_data("type", sess.type);
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26 log_data("host", sess.host);
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27 end
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28 local stanza = event_data.stanza;
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29 if stanza then
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30 log_data("stanza", tostring(stanza));
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31 else
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32 local request = event_data.request;
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33 if request then
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34 log_data("http_method", request.method);
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35 log_data("http_path", request.path);
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36 local auth = request.headers.authorization;
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37 if auth then
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38 local creds = auth:match("^Basic +(.+)$");
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39 if creds then
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40 local user = string.match(base64_decode(creds) or "", "^([^:]+):");
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41 log_data("http_user", user);
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42 end
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43 end
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44 end
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45 end
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46 end
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47 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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48 end
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49 return ret;
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50 end
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52 module:wrap_event(false, event_wrapper);
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53 local http_events = require "net.http.server"._events;
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54 module:wrap_object_event(http_events, false, event_wrapper);
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