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core/loggingmanager.lua @ 10750:ff087f2d4cb6
mod_lastactivity: Encode seconds as decimal, not float
In Lua 5.3 difftime() takes integers as argument but returns a float,
and then tostring() serializes it with a decimal point. This violates
XEP-0012.
Like #1536
author | Kim Alvefur <zash@zash.se> |
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date | Wed, 22 Apr 2020 23:36:25 +0200 |
parent | 9927:1460c4966262 |
child | 11641:b03053ec6dcf |
rev | line source |
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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 format = require "util.format".format; |
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10 local setmetatable, rawset, pairs, ipairs, type = |
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11 setmetatable, rawset, pairs, ipairs, type; |
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12 local stdout = io.stdout; |
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13 local io_open = io.open; |
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14 local math_max, rep = math.max, string.rep; |
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15 local os_date = os.date; |
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16 local getstyle, getstring = require "util.termcolours".getstyle, require "util.termcolours".getstring; |
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17 |
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18 local config = require "core.configmanager"; |
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19 local logger = require "util.logger"; |
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20 |
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21 local have_pposix, pposix = pcall(require, "util.pposix"); |
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22 have_pposix = have_pposix and pposix._VERSION == "0.4.0"; |
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23 |
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24 local _ENV = nil; |
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25 -- luacheck: std none |
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26 |
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27 -- The log config used if none specified in the config file (see reload_logging for initialization) |
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28 local default_logging; |
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29 local default_file_logging; |
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30 local default_timestamp = "%b %d %H:%M:%S "; |
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31 -- The actual config loggingmanager is using |
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32 local logging_config; |
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33 |
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34 local apply_sink_rules; |
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35 local log_sink_types = setmetatable({}, { __newindex = function (t, k, v) rawset(t, k, v); apply_sink_rules(k); end; }); |
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36 local get_levels; |
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37 local logging_levels = { "debug", "info", "warn", "error" } |
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38 |
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39 -- Put a rule into action. Requires that the sink type has already been registered. |
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40 -- This function is called automatically when a new sink type is added [see apply_sink_rules()] |
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41 local function add_rule(sink_config) |
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42 local sink_maker = log_sink_types[sink_config.to]; |
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43 if not sink_maker then |
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44 return; -- No such sink type |
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45 end |
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46 |
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47 -- Create sink |
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48 local sink = sink_maker(sink_config); |
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49 |
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50 -- Set sink for all chosen levels |
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51 for level in pairs(get_levels(sink_config.levels or logging_levels)) do |
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52 logger.add_level_sink(level, sink); |
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53 end |
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54 end |
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55 |
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56 -- Search for all rules using a particular sink type, and apply |
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57 -- them. Called automatically when a new sink type is added to |
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58 -- the log_sink_types table. |
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59 function apply_sink_rules(sink_type) |
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60 if type(logging_config) == "table" then |
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61 |
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62 for _, level in ipairs(logging_levels) do |
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63 if type(logging_config[level]) == "string" then |
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64 local value = logging_config[level]; |
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65 if sink_type == "file" and not value:match("^%*") then |
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66 add_rule({ |
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67 to = sink_type; |
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68 filename = value; |
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69 timestamps = true; |
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70 levels = { min = level }; |
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71 }); |
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72 elseif value == "*"..sink_type then |
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73 add_rule({ |
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74 to = sink_type; |
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75 levels = { min = level }; |
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76 }); |
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77 end |
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78 end |
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79 end |
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80 |
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81 for _, sink_config in ipairs(logging_config) do |
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82 if (type(sink_config) == "table" and sink_config.to == sink_type) then |
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83 add_rule(sink_config); |
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84 elseif (type(sink_config) == "string" and sink_config:match("^%*(.+)") == sink_type) then |
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85 add_rule({ levels = { min = "debug" }, to = sink_type }); |
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86 end |
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87 end |
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88 elseif type(logging_config) == "string" and (not logging_config:match("^%*")) and sink_type == "file" then |
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89 -- User specified simply a filename, and the "file" sink type |
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90 -- was just added |
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91 for _, sink_config in pairs(default_file_logging) do |
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92 sink_config.filename = logging_config; |
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93 add_rule(sink_config); |
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94 sink_config.filename = nil; |
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95 end |
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96 elseif type(logging_config) == "string" and logging_config:match("^%*(.+)") == sink_type then |
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97 -- Log all levels (debug+) to this sink |
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98 add_rule({ levels = { min = "debug" }, to = sink_type }); |
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99 end |
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100 end |
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101 |
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102 |
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103 |
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104 --- Helper function to get a set of levels given a "criteria" table |
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105 function get_levels(criteria, set) |
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106 set = set or {}; |
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107 if type(criteria) == "string" then |
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108 set[criteria] = true; |
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109 return set; |
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110 end |
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111 local min, max = criteria.min, criteria.max; |
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112 if min or max then |
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113 local in_range; |
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114 for _, level in ipairs(logging_levels) do |
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115 if min == level then |
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116 set[level] = true; |
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117 in_range = true; |
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118 elseif max == level then |
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119 set[level] = true; |
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120 return set; |
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121 elseif in_range then |
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122 set[level] = true; |
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123 end |
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124 end |
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125 end |
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126 |
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127 for _, level in ipairs(criteria) do |
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128 set[level] = true; |
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129 end |
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130 return set; |
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131 end |
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132 |
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133 -- Initialize config, etc. -- |
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134 local function reload_logging() |
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135 local old_sink_types = {}; |
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136 |
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137 for name, sink_maker in pairs(log_sink_types) do |
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138 old_sink_types[name] = sink_maker; |
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139 log_sink_types[name] = nil; |
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140 end |
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141 |
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142 logger.reset(); |
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143 |
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144 local debug_mode = config.get("*", "debug"); |
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145 |
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146 default_logging = { { to = "console" , levels = { min = (debug_mode and "debug") or "info" } } }; |
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147 default_file_logging = { |
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148 { to = "file", levels = { min = (debug_mode and "debug") or "info" }, timestamps = true } |
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149 }; |
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150 |
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151 logging_config = config.get("*", "log") or default_logging; |
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152 |
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153 for name, sink_maker in pairs(old_sink_types) do |
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154 log_sink_types[name] = sink_maker; |
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155 end |
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156 end |
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157 |
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158 --- Definition of built-in logging sinks --- |
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159 |
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160 -- Null sink, must enter log_sink_types *first* |
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161 local function log_to_nowhere() |
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162 return function () return false; end; |
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163 end |
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164 log_sink_types.nowhere = log_to_nowhere; |
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165 |
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166 local function log_to_file(sink_config, logfile) |
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167 logfile = logfile or io_open(sink_config.filename, "a+"); |
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168 if not logfile then |
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169 return log_to_nowhere(sink_config); |
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170 end |
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171 local write = logfile.write; |
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172 |
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173 local timestamps = sink_config.timestamps; |
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174 |
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175 if timestamps == true or timestamps == nil then |
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176 timestamps = default_timestamp; -- Default format |
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177 elseif timestamps then |
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178 timestamps = timestamps .. " "; |
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179 end |
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180 |
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181 if sink_config.buffer_mode ~= false then |
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182 logfile:setvbuf(sink_config.buffer_mode or "line"); |
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183 end |
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184 |
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185 -- Column width for "source" (used by stdout and console) |
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186 local sourcewidth = sink_config.source_width; |
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187 |
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188 if sourcewidth then |
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189 return function (name, level, message, ...) |
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190 sourcewidth = math_max(#name+2, sourcewidth); |
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191 write(logfile, timestamps and os_date(timestamps) or "", name, rep(" ", sourcewidth-#name), level, "\t", format(message, ...), "\n"); |
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192 end |
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193 else |
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194 return function (name, level, message, ...) |
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195 write(logfile, timestamps and os_date(timestamps) or "", name, "\t", level, "\t", format(message, ...), "\n"); |
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196 end |
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197 end |
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198 end |
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199 log_sink_types.file = log_to_file; |
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200 |
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201 local function log_to_stdout(sink_config) |
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202 if not sink_config.timestamps then |
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203 sink_config.timestamps = false; |
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204 end |
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205 if sink_config.source_width == nil then |
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206 sink_config.source_width = 20; |
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207 end |
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208 return log_to_file(sink_config, stdout); |
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209 end |
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210 log_sink_types.stdout = log_to_stdout; |
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211 |
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212 local do_pretty_printing = true; |
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213 |
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214 local logstyles; |
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215 if do_pretty_printing then |
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216 logstyles = {}; |
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217 logstyles["info"] = getstyle("bold"); |
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218 logstyles["warn"] = getstyle("bold", "yellow"); |
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219 logstyles["error"] = getstyle("bold", "red"); |
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220 end |
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221 |
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222 local function log_to_console(sink_config) |
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223 -- Really if we don't want pretty colours then just use plain stdout |
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224 local logstdout = log_to_stdout(sink_config); |
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225 if not do_pretty_printing then |
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226 return logstdout; |
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227 end |
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228 return function (name, level, message, ...) |
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229 local logstyle = logstyles[level]; |
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230 if logstyle then |
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231 level = getstring(logstyle, level); |
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232 end |
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233 return logstdout(name, level, message, ...); |
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234 end |
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235 end |
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236 log_sink_types.console = log_to_console; |
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237 |
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238 if have_pposix then |
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239 local syslog_opened; |
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240 local function log_to_syslog(sink_config) -- luacheck: ignore 212/sink_config |
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241 if not syslog_opened then |
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242 local facility = sink_config.syslog_facility or config.get("*", "syslog_facility"); |
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243 pposix.syslog_open(sink_config.syslog_name or "prosody", facility); |
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244 syslog_opened = true; |
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245 end |
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246 local syslog = pposix.syslog_log; |
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247 return function (name, level, message, ...) |
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248 syslog(level, name, format(message, ...)); |
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249 end; |
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250 end |
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251 log_sink_types.syslog = log_to_syslog; |
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252 end |
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253 |
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254 local function register_sink_type(name, sink_maker) |
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255 local old_sink_maker = log_sink_types[name]; |
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256 log_sink_types[name] = sink_maker; |
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257 return old_sink_maker; |
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258 end |
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259 |
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260 return { |
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261 reload_logging = reload_logging; |
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262 register_sink_type = register_sink_type; |
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263 } |