prosody
d5360307a99d
util/logger.lua

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util/logger.lua @ 11568:d5360307a99d

mod_http_file_share: Handle out of bounds Range request Turns out you can seek past the end of the file without getting an error. Also rejects empty range instead of sending the whole file.
author Kim Alvefur <zash@zash.se>
date Mon, 17 May 2021 14:14:25 +0200
parent 8556:5800f0c7afd6
child 12394:86d6b069b892
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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 -- luacheck: ignore 213/level
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9
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10 local pairs = pairs;
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11 local ipairs = ipairs;
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12 local require = require;
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14 local _ENV = nil;
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15 -- luacheck: std none
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17 local level_sinks = {};
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18
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19 local make_logger;
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20
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21 local function init(name)
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22 local log_debug = make_logger(name, "debug");
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23 local log_info = make_logger(name, "info");
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24 local log_warn = make_logger(name, "warn");
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25 local log_error = make_logger(name, "error");
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27 return function (level, message, ...)
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28 if level == "debug" then
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29 return log_debug(message, ...);
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30 elseif level == "info" then
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31 return log_info(message, ...);
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32 elseif level == "warn" then
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33 return log_warn(message, ...);
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34 elseif level == "error" then
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35 return log_error(message, ...);
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36 end
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37 end
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38 end
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39
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40 function make_logger(source_name, level)
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41 local level_handlers = level_sinks[level];
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42 if not level_handlers then
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43 level_handlers = {};
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44 level_sinks[level] = level_handlers;
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45 end
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47 local logger = function (message, ...)
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48 for i = 1,#level_handlers do
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49 level_handlers[i](source_name, level, message, ...);
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50 end
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51 end
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52
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53 return logger;
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54 end
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55
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56 local function reset()
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57 for level, handler_list in pairs(level_sinks) do
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58 -- Clear all handlers for this level
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59 for i = 1, #handler_list do
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60 handler_list[i] = nil;
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61 end
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62 end
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63 end
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64
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65 local function add_level_sink(level, sink_function)
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66 if not level_sinks[level] then
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67 level_sinks[level] = { sink_function };
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68 else
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69 level_sinks[level][#level_sinks[level] + 1 ] = sink_function;
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70 end
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71 end
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72
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73 local function add_simple_sink(simple_sink_function, levels)
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74 local format = require "util.format".format;
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75 local function sink_function(name, level, msg, ...)
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76 return simple_sink_function(name, level, format(msg, ...));
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77 end
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78 for _, level in ipairs(levels or {"debug", "info", "warn", "error"}) do
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79 add_level_sink(level, sink_function);
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80 end
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81 end
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82
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83 return {
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84 init = init;
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85 make_logger = make_logger;
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86 reset = reset;
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87 add_level_sink = add_level_sink;
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88 add_simple_sink = add_simple_sink;
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89 new = make_logger;
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90 };