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mod_http_logging/mod_http_logging.lua @ 1882:99863a6a7b8c

mod_http_logging: Produce HTTP logs in the style of Apache
author Kim Alvefur <zash@zash.se>
date Wed, 30 Sep 2015 13:36:13 +0200
child 1883:c625ed20ebda
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1882
99863a6a7b8c mod_http_logging: Produce HTTP logs in the style of Apache
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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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5 -- Produces HTTP logs in the style of Apache
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6 --
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7 -- TODO
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8 -- * Configurable format?
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9
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10 module:set_global();
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11
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12 local server = require "net.http.server";
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13
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14 local send_response = server.send_response;
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15 local function log_and_send_response(response, body)
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16 if not response.finished then
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17 body = body or response.body;
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18 local len = body and #body or "-";
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19 local request = response.request;
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20 local ip = request.conn:ip();
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21 local req = string.format("%s %s HTTP/%s", request.method, request.path, request.httpversion);
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22 local date = os.date("%d/%m/%Y:%H:%M:%S %z");
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23 module:log("info", "%s - - [%s] \"%s\" %d %s", ip, date, req, response.status_code, tostring(len));
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24 end
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25 return server.send_response(response, body);
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26 end
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27
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28 if module.wrap_object_event then
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29 -- Use object event wrapping, allows clean unloading of the module
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30 module:wrap_object_event(server._events, false, function (handlers, event_name, event_data)
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31 if event_data.response then
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32 event_data.response.send = log_and_send_response;
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33 end
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34 return handlers(event_name, event_data);
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35 end);
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36 else
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37 -- Fall back to monkeypatching, unlikely to behave nicely in the
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38 -- presence of other modules also doing this
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39 server.send_response = log_and_send_response;
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40 function module.unload()
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41 server.send_response = send_response;
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42 end
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43 end