Mercurial > prosody-modules

annotate mod_http_logging/mod_http_logging.lua @ 4877:adc6241e5d16

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mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parents c89be016a075
children
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1 -- mod_http_logging
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2 --
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3 -- Copyright (C) 2015 Kim Alvefur
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4 --
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c625ed20ebda mod_http_logging: MIT
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8 -- Produces HTTP logs in the style of Apache
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9 --
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10 -- TODO
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11 -- * Configurable format?
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12
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13 module:set_global();
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14
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15 local server = require "net.http.server";
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16
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17 local function get_content_len(response, body)
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18 local len = response.headers.content_length;
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19 if len then return len; end
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20 if not body then body = response.body; end
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21 if body then return #tostring(body); end
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22 end
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23
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24 local function log_response(response, body)
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25 local len = tostring(get_content_len(response, body) or "-");
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26 local request = response.request;
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27 local ip = request.ip;
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28 if not ip and request.conn then
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29 ip = request.conn:ip();
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30 end
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31 local req = string.format("%s %s HTTP/%s", request.method, request.path, request.httpversion);
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32 local date = os.date("%d/%m/%Y:%H:%M:%S %z");
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33 module:log("info", "%s - - [%s] \"%s\" %d %s", ip, date, req, response.status_code, len);
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34 end
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35
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36 local send_response = server.send_response;
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37 local function log_and_send_response(response, body)
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38 if not response.finished then
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39 log_response(response, body);
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40 end
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41 return send_response(response, body);
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42 end
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43
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44 local send_file = server.send_file;
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45 local function log_and_send_file(response, f)
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46 if not response.finished then
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47 log_response(response);
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48 end
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49 return send_file(response, f);
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50 end
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51
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52 if module.wrap_object_event then
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53 -- Use object event wrapping, allows clean unloading of the module
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54 module:wrap_object_event(server._events, false, function (handlers, event_name, event_data)
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55 if event_data.response then
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56 event_data.response.send = log_and_send_response;
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57 event_data.response.send_file = log_and_send_file;
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58 end
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59 return handlers(event_name, event_data);
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60 end);
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61 else
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62 -- Fall back to monkeypatching, unlikely to behave nicely in the
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63 -- presence of other modules also doing this
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64 server.send_response = log_and_send_response;
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65 server.send_file = log_and_send_file;
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66 function module.unload()
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67 server.send_response = send_response;
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68 server.send_file = send_file;
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69 end
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70 end