prosody
1d13f73af58e
util/logger.lua

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util/logger.lua @ 5901:1d13f73af58e

certmanager: Default to using the server's cipher preference order by default, as clients have been shown to commonly select weak and insecure ciphers even when they support stronger ones
author Matthew Wild <mwild1@gmail.com>
date Sat, 09 Nov 2013 17:50:19 +0000
parent 4937:b3fe52353295
child 5776:bd0ff8ae98a8
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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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
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9 local pcall = pcall;
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11 local find = string.find;
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12 local ipairs, pairs, setmetatable = ipairs, pairs, setmetatable;
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14 module "logger"
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16 local level_sinks = {};
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17
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18 local make_logger;
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20 function init(name)
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21 local log_debug = make_logger(name, "debug");
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22 local log_info = make_logger(name, "info");
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23 local log_warn = make_logger(name, "warn");
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24 local log_error = make_logger(name, "error");
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26 return function (level, message, ...)
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27 if level == "debug" then
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28 return log_debug(message, ...);
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29 elseif level == "info" then
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30 return log_info(message, ...);
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31 elseif level == "warn" then
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32 return log_warn(message, ...);
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33 elseif level == "error" then
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34 return log_error(message, ...);
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35 end
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36 end
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37 end
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39 function make_logger(source_name, level)
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40 local level_handlers = level_sinks[level];
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41 if not level_handlers then
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42 level_handlers = {};
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43 level_sinks[level] = level_handlers;
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44 end
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46 local logger = function (message, ...)
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47 for i = 1,#level_handlers do
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48 level_handlers[i](source_name, level, message, ...);
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49 end
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50 end
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52 return logger;
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53 end
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54
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55 function reset()
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56 for level, handler_list in pairs(level_sinks) do
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57 -- Clear all handlers for this level
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58 for i = 1, #handler_list do
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59 handler_list[i] = nil;
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60 end
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61 end
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62 end
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64 function add_level_sink(level, sink_function)
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65 if not level_sinks[level] then
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66 level_sinks[level] = { sink_function };
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67 else
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68 level_sinks[level][#level_sinks[level] + 1 ] = sink_function;
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69 end
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70 end
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72 _M.new = make_logger;
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73
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74 return _M;