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util/startup.lua @ 8653:dab9b8af0f01
util.startup: Execute startup routine inside async context
author | Matthew Wild <mwild1@gmail.com> |
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date | Thu, 22 Mar 2018 16:24:22 +0000 |
parent | 8639:070a77c15f63 |
child | 8664:d49acc9a8da2 |
rev | line source |
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util.startup: Ignore various globals being read and written as part of startup [luacheck]
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1 -- Ignore the CFG_* variables |
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2 -- luacheck: ignore 113/CFG_CONFIGDIR 113/CFG_SOURCEDIR 113/CFG_DATADIR 113/CFG_PLUGINDIR |
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3 local startup = {}; |
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4 |
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5 local prosody = { events = require "util.events".new() }; |
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6 |
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7 local config = require "core.configmanager"; |
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8 local async = require "util.async"; |
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9 |
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10 local dependencies = require "util.dependencies"; |
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11 |
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12 function startup.read_config() |
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13 local filenames = {}; |
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14 |
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15 local filename; |
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16 if arg[1] == "--config" and arg[2] then |
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17 table.insert(filenames, arg[2]); |
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18 if CFG_CONFIGDIR then |
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19 table.insert(filenames, CFG_CONFIGDIR.."/"..arg[2]); |
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20 end |
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21 table.remove(arg, 1); table.remove(arg, 1); |
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22 elseif os.getenv("PROSODY_CONFIG") then -- Passed by prosodyctl |
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23 table.insert(filenames, os.getenv("PROSODY_CONFIG")); |
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24 else |
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25 table.insert(filenames, (CFG_CONFIGDIR or ".").."/prosody.cfg.lua"); |
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26 end |
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27 for _,_filename in ipairs(filenames) do |
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28 filename = _filename; |
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29 local file = io.open(filename); |
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30 if file then |
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31 file:close(); |
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32 prosody.config_file = filename; |
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33 CFG_CONFIGDIR = filename:match("^(.*)[\\/][^\\/]*$"); -- luacheck: ignore 111 |
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34 break; |
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35 end |
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36 end |
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37 prosody.config_file = filename |
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38 local ok, level, err = config.load(filename); |
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39 if not ok then |
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40 print("\n"); |
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41 print("**************************"); |
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42 if level == "parser" then |
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43 print("A problem occured while reading the config file "..filename); |
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44 print(""); |
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45 local err_line, err_message = tostring(err):match("%[string .-%]:(%d*): (.*)"); |
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46 if err:match("chunk has too many syntax levels$") then |
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47 print("An Include statement in a config file is including an already-included"); |
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48 print("file and causing an infinite loop. An Include statement in a config file is..."); |
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49 else |
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50 print("Error"..(err_line and (" on line "..err_line) or "")..": "..(err_message or tostring(err))); |
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51 end |
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52 print(""); |
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53 elseif level == "file" then |
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54 print("Prosody was unable to find the configuration file."); |
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55 print("We looked for: "..filename); |
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56 print("A sample config file is included in the Prosody download called prosody.cfg.lua.dist"); |
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57 print("Copy or rename it to prosody.cfg.lua and edit as necessary."); |
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58 end |
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59 print("More help on configuring Prosody can be found at https://prosody.im/doc/configure"); |
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60 print("Good luck!"); |
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61 print("**************************"); |
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62 print(""); |
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63 os.exit(1); |
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64 end |
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65 end |
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66 |
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67 function startup.check_dependencies() |
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68 if not dependencies.check_dependencies() then |
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69 os.exit(1); |
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70 end |
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71 end |
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72 |
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73 -- luacheck: globals socket server |
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74 |
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75 function startup.load_libraries() |
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76 -- Load socket framework |
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77 -- luacheck: ignore 111/server 111/socket |
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78 socket = require "socket"; |
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79 server = require "net.server" |
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80 end |
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81 |
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82 -- The global log() gets defined by loggingmanager |
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83 -- luacheck: ignore 113/log |
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84 |
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85 function startup.init_logging() |
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86 -- Initialize logging |
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87 require "core.loggingmanager" |
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88 end |
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89 |
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90 function startup.log_dependency_warnings() |
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91 dependencies.log_warnings(); |
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92 end |
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93 |
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94 function startup.sanity_check() |
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95 for host, host_config in pairs(config.getconfig()) do |
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96 if host ~= "*" |
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97 and host_config.enabled ~= false |
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98 and not host_config.component_module then |
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99 return; |
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100 end |
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101 end |
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102 log("error", "No enabled VirtualHost entries found in the config file."); |
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103 log("error", "At least one active host is required for Prosody to function. Exiting..."); |
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104 os.exit(1); |
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105 end |
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106 |
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107 function startup.sandbox_require() |
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108 -- Replace require() with one that doesn't pollute _G, required |
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109 -- for neat sandboxing of modules |
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110 -- luacheck: ignore 113/getfenv 111/require |
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111 local _realG = _G; |
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112 local _real_require = require; |
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113 local getfenv = getfenv or function (f) |
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114 -- FIXME: This is a hack to replace getfenv() in Lua 5.2 |
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115 local name, env = debug.getupvalue(debug.getinfo(f or 1).func, 1); |
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116 if name == "_ENV" then |
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117 return env; |
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118 end |
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119 end |
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120 function require(...) -- luacheck: ignore 121 |
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121 local curr_env = getfenv(2); |
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122 local curr_env_mt = getmetatable(curr_env); |
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123 local _realG_mt = getmetatable(_realG); |
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124 if curr_env_mt and curr_env_mt.__index and not curr_env_mt.__newindex and _realG_mt then |
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125 local old_newindex, old_index; |
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126 old_newindex, _realG_mt.__newindex = _realG_mt.__newindex, curr_env; |
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127 old_index, _realG_mt.__index = _realG_mt.__index, function (_G, k) -- luacheck: ignore 212/_G |
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128 return rawget(curr_env, k); |
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129 end; |
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130 local ret = _real_require(...); |
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131 _realG_mt.__newindex = old_newindex; |
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132 _realG_mt.__index = old_index; |
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133 return ret; |
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134 end |
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135 return _real_require(...); |
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136 end |
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137 end |
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138 |
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139 function startup.set_function_metatable() |
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140 local mt = {}; |
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141 function mt.__index(f, upvalue) |
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142 local i, name, value = 0; |
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143 repeat |
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144 i = i + 1; |
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145 name, value = debug.getupvalue(f, i); |
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146 until name == upvalue or name == nil; |
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147 return value; |
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148 end |
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149 function mt.__newindex(f, upvalue, value) |
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150 local i, name = 0; |
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151 repeat |
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152 i = i + 1; |
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153 name = debug.getupvalue(f, i); |
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154 until name == upvalue or name == nil; |
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155 if name then |
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156 debug.setupvalue(f, i, value); |
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157 end |
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158 end |
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159 function mt.__tostring(f) |
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160 local info = debug.getinfo(f); |
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161 return ("function(%s:%d)"):format(info.short_src:match("[^\\/]*$"), info.linedefined); |
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162 end |
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163 debug.setmetatable(function() end, mt); |
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164 end |
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165 |
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166 function startup.detect_platform() |
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167 prosody.platform = "unknown"; |
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168 if os.getenv("WINDIR") then |
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169 prosody.platform = "windows"; |
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170 elseif package.config:sub(1,1) == "/" then |
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171 prosody.platform = "posix"; |
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172 end |
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173 end |
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174 |
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175 function startup.detect_installed() |
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176 prosody.installed = nil; |
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177 if CFG_SOURCEDIR and (prosody.platform == "windows" or CFG_SOURCEDIR:match("^/")) then |
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178 prosody.installed = true; |
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179 end |
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180 end |
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181 |
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182 function startup.chdir() |
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183 if prosody.installed then |
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184 -- Change working directory to data path. |
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185 require "lfs".chdir(data_path); |
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186 end |
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187 end |
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188 |
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189 function startup.init_global_state() |
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190 -- luacheck: ignore 121 |
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191 prosody.bare_sessions = {}; |
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192 prosody.full_sessions = {}; |
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193 prosody.hosts = {}; |
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194 |
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195 -- COMPAT: These globals are deprecated |
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196 -- luacheck: ignore 111/bare_sessions 111/full_sessions 111/hosts |
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197 bare_sessions = prosody.bare_sessions; |
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198 full_sessions = prosody.full_sessions; |
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199 hosts = prosody.hosts; |
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200 |
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201 local data_path = config.get("*", "data_path") or CFG_DATADIR or "data"; |
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202 local custom_plugin_paths = config.get("*", "plugin_paths"); |
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203 if custom_plugin_paths then |
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204 local path_sep = package.config:sub(3,3); |
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205 -- path1;path2;path3;defaultpath... |
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206 -- luacheck: ignore 111 |
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207 CFG_PLUGINDIR = table.concat(custom_plugin_paths, path_sep)..path_sep..(CFG_PLUGINDIR or "plugins"); |
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208 end |
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209 prosody.paths = { source = CFG_SOURCEDIR, config = CFG_CONFIGDIR or ".", |
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210 plugins = CFG_PLUGINDIR or "plugins", data = data_path }; |
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211 |
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212 prosody.arg = _G.arg; |
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213 |
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214 startup.detect_platform(); |
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215 startup.detect_installed(); |
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216 _G.prosody = prosody; |
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217 end |
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218 |
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219 function startup.add_global_prosody_functions() |
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220 -- Function to reload the config file |
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221 function prosody.reload_config() |
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222 log("info", "Reloading configuration file"); |
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223 prosody.events.fire_event("reloading-config"); |
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224 local ok, level, err = config.load(prosody.config_file); |
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225 if not ok then |
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226 if level == "parser" then |
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227 log("error", "There was an error parsing the configuration file: %s", tostring(err)); |
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228 elseif level == "file" then |
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229 log("error", "Couldn't read the config file when trying to reload: %s", tostring(err)); |
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230 end |
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231 end |
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232 return ok, (err and tostring(level)..": "..tostring(err)) or nil; |
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233 end |
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234 |
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235 -- Function to reopen logfiles |
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236 function prosody.reopen_logfiles() |
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237 log("info", "Re-opening log files"); |
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238 prosody.events.fire_event("reopen-log-files"); |
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239 end |
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240 |
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241 -- Function to initiate prosody shutdown |
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242 function prosody.shutdown(reason, code) |
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243 log("info", "Shutting down: %s", reason or "unknown reason"); |
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244 prosody.shutdown_reason = reason; |
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245 prosody.shutdown_code = code; |
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246 prosody.events.fire_event("server-stopping", { |
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247 reason = reason; |
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248 code = code; |
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249 }); |
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250 server.setquitting(true); |
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251 end |
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252 end |
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253 |
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254 function startup.load_secondary_libraries() |
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255 --- Load and initialise core modules |
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256 require "util.import" |
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257 require "util.xmppstream" |
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258 require "core.stanza_router" |
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259 require "core.statsmanager" |
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260 require "core.hostmanager" |
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261 require "core.portmanager" |
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262 require "core.modulemanager" |
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263 require "core.usermanager" |
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264 require "core.rostermanager" |
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265 require "core.sessionmanager" |
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266 package.loaded['core.componentmanager'] = setmetatable({},{__index=function() |
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267 log("warn", "componentmanager is deprecated: %s", debug.traceback():match("\n[^\n]*\n[ \t]*([^\n]*)")); |
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268 return function() end |
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269 end}); |
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270 |
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271 require "util.array" |
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272 require "util.datetime" |
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273 require "util.iterators" |
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274 require "util.timer" |
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275 require "util.helpers" |
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276 |
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277 pcall(require, "util.signal") -- Not on Windows |
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278 |
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279 -- Commented to protect us from |
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280 -- the second kind of people |
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281 --[[ |
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282 pcall(require, "remdebug.engine"); |
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283 if remdebug then remdebug.engine.start() end |
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284 ]] |
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285 |
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286 require "util.stanza" |
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287 require "util.jid" |
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288 end |
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289 |
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290 function startup.init_http_client() |
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291 local http = require "net.http" |
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292 local config_ssl = config.get("*", "ssl") or {} |
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293 local https_client = config.get("*", "client_https_ssl") |
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294 http.default.options.sslctx = require "core.certmanager".create_context("client_https port 0", "client", |
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295 { capath = config_ssl.capath, cafile = config_ssl.cafile, verify = "peer", }, https_client); |
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296 end |
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297 |
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298 function startup.init_data_store() |
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299 require "core.storagemanager"; |
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300 end |
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301 |
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302 function startup.prepare_to_start() |
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303 log("info", "Prosody is using the %s backend for connection handling", server.get_backend()); |
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304 -- Signal to modules that we are ready to start |
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305 prosody.events.fire_event("server-starting"); |
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306 prosody.start_time = os.time(); |
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307 end |
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308 |
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309 function startup.init_global_protection() |
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310 -- Catch global accesses |
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311 -- luacheck: ignore 212/t |
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312 local locked_globals_mt = { |
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313 __index = function (t, k) log("warn", "%s", debug.traceback("Attempt to read a non-existent global '"..tostring(k).."'", 2)); end; |
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314 __newindex = function (t, k, v) error("Attempt to set a global: "..tostring(k).." = "..tostring(v), 2); end; |
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315 }; |
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316 |
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317 function prosody.unlock_globals() |
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318 setmetatable(_G, nil); |
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319 end |
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320 |
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321 function prosody.lock_globals() |
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322 setmetatable(_G, locked_globals_mt); |
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323 end |
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324 |
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325 -- And lock now... |
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326 prosody.lock_globals(); |
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327 end |
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328 |
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329 function startup.read_version() |
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330 -- Try to determine version |
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331 local version_file = io.open((CFG_SOURCEDIR or ".").."/prosody.version"); |
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332 prosody.version = "unknown"; |
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333 if version_file then |
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334 prosody.version = version_file:read("*a"):gsub("%s*$", ""); |
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335 version_file:close(); |
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336 if #prosody.version == 12 and prosody.version:match("^[a-f0-9]+$") then |
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337 prosody.version = "hg:"..prosody.version; |
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338 end |
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339 else |
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340 local hg = require"util.mercurial"; |
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341 local hgid = hg.check_id(CFG_SOURCEDIR or "."); |
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342 if hgid then prosody.version = "hg:" .. hgid; end |
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343 end |
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344 end |
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345 |
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346 function startup.log_greeting() |
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347 log("info", "Hello and welcome to Prosody version %s", prosody.version); |
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348 end |
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349 |
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350 function startup.notify_started() |
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351 prosody.events.fire_event("server-started"); |
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352 end |
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353 |
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354 -- Override logging config (used by prosodyctl) |
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355 function startup.force_console_logging() |
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356 local original_logging_config = config.get("*", "log"); |
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357 config.set("*", "log", { { levels = { min="info" }, to = "console" } }); |
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358 end |
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359 |
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360 function startup.switch_user() |
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361 -- Switch away from root and into the prosody user -- |
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362 -- NOTE: This function is only used by prosodyctl. |
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363 -- The prosody process is built with the assumption that |
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364 -- it is already started as the appropriate user. |
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365 local switched_user, current_uid; |
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366 |
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367 local want_pposix_version = "0.4.0"; |
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368 local have_pposix, pposix = pcall(require, "util.pposix"); |
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369 |
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370 if have_pposix and pposix then |
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371 if pposix._VERSION ~= want_pposix_version then |
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372 print(string.format("Unknown version (%s) of binary pposix module, expected %s", |
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373 tostring(pposix._VERSION), want_pposix_version)); |
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374 os.exit(1); |
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375 end |
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376 current_uid = pposix.getuid(); |
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377 local arg_root = arg[1] == "--root"; |
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378 if arg_root then table.remove(arg, 1); end |
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379 if current_uid == 0 and config.get("*", "run_as_root") ~= true and not arg_root then |
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380 -- We haz root! |
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381 local desired_user = config.get("*", "prosody_user") or "prosody"; |
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382 local desired_group = config.get("*", "prosody_group") or desired_user; |
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383 local ok, err = pposix.setgid(desired_group); |
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384 if ok then |
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385 ok, err = pposix.initgroups(desired_user); |
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386 end |
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387 if ok then |
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388 ok, err = pposix.setuid(desired_user); |
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389 if ok then |
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390 -- Yay! |
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391 switched_user = true; |
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392 end |
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393 end |
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394 if not switched_user then |
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395 -- Boo! |
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396 print("Warning: Couldn't switch to Prosody user/group '"..tostring(desired_user).."'/'"..tostring(desired_group).."': "..tostring(err)); |
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397 else |
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398 -- Make sure the Prosody user can read the config |
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399 local conf, err, errno = io.open(ENV_CONFIG); |
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400 if conf then |
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401 conf:close(); |
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402 else |
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403 print("The config file is not readable by the '"..desired_user.."' user."); |
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404 print("Prosody will not be able to read it."); |
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405 print("Error was "..err); |
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406 os.exit(1); |
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407 end |
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408 end |
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409 end |
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410 |
8635
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411 -- Set our umask to protect data files |
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412 pposix.umask(config.get("*", "umask") or "027"); |
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413 pposix.setenv("HOME", data_path); |
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414 pposix.setenv("PROSODY_CONFIG", ENV_CONFIG); |
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415 else |
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416 print("Error: Unable to load pposix module. Check that Prosody is installed correctly.") |
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417 print("For more help send the below error to us through https://prosody.im/discuss"); |
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418 print(tostring(pposix)) |
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419 os.exit(1); |
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420 end |
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421 end |
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|
422 |
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|
423 function startup.check_unwriteable() |
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424 local function test_writeable(filename) |
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425 local f, err = io.open(filename, "a"); |
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426 if not f then |
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427 return false, err; |
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428 end |
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429 f:close(); |
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430 return true; |
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431 end |
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432 |
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433 local unwriteable_files = {}; |
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434 if type(original_logging_config) == "string" and original_logging_config:sub(1,1) ~= "*" then |
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435 local ok, err = test_writeable(original_logging_config); |
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436 if not ok then |
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437 table.insert(unwriteable_files, err); |
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438 end |
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439 elseif type(original_logging_config) == "table" then |
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440 for _, rule in ipairs(original_logging_config) do |
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441 if rule.filename then |
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442 local ok, err = test_writeable(rule.filename); |
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443 if not ok then |
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444 table.insert(unwriteable_files, err); |
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445 end |
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446 end |
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447 end |
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448 end |
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449 |
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450 if #unwriteable_files > 0 then |
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451 print("One of more of the Prosody log files are not"); |
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452 print("writeable, please correct the errors and try"); |
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453 print("starting prosodyctl again."); |
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454 print(""); |
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455 for _, err in ipairs(unwriteable_files) do |
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456 print(err); |
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457 end |
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458 print(""); |
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459 os.exit(1); |
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460 end |
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461 end |
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462 |
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463 function startup.make_dummy_hosts() |
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464 -- When running under prosodyctl, we don't want to |
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|
465 -- fully initialize the server, so we populate prosody.hosts |
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466 -- with just enough things for most code to work correctly |
8638
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8637
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|
467 -- luacheck: ignore 122/hosts |
8635
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468 prosody.core_post_stanza = function () end; -- TODO: mod_router! |
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469 local function make_host(hostname) |
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470 return { |
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471 type = "local", |
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472 events = prosody.events, |
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473 modules = {}, |
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474 sessions = {}, |
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475 users = require "core.usermanager".new_null_provider(hostname) |
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476 }; |
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477 end |
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|
478 |
8639
070a77c15f63
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Kim Alvefur <zash@zash.se>
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8638
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|
479 for hostname in pairs(config.getconfig()) do |
8635
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480 hosts[hostname] = make_host(hostname); |
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481 end |
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482 end |
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|
483 |
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|
484 -- prosodyctl only |
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|
485 function startup.prosodyctl() |
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|
486 startup.read_config(); |
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|
487 startup.chdir(); |
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diff
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|
488 startup.check_dependencies(); |
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|
489 startup.force_console_logging(); |
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|
490 startup.init_global_state(); |
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|
491 startup.init_logging(); |
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|
492 startup.log_dependency_warnings(); |
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|
493 startup.check_unwriteable(); |
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|
494 startup.load_libraries(); |
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|
495 startup.init_global_protection(); |
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496 startup.init_http_client(); |
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|
497 startup.make_dummy_hosts(); |
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|
498 end |
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|
499 |
47e3b8b6f17a
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|
500 function startup.prosody() |
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501 async.once(function () |
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502 -- These actions are in a strict order, as many depend on |
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503 -- previous steps to have already been performed |
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504 startup.read_config(); |
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505 startup.sanity_check(); |
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506 startup.sandbox_require(); |
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507 startup.set_function_metatable(); |
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508 startup.check_dependencies(); |
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509 startup.load_libraries(); |
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510 startup.init_global_state(); |
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511 startup.init_logging(); |
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512 startup.chdir(); |
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|
513 startup.add_global_prosody_functions(); |
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util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
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514 startup.read_version(); |
dab9b8af0f01
util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
parents:
8639
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515 startup.log_greeting(); |
dab9b8af0f01
util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
parents:
8639
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516 startup.log_dependency_warnings(); |
dab9b8af0f01
util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
parents:
8639
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517 startup.load_secondary_libraries(); |
dab9b8af0f01
util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
parents:
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518 startup.init_http_client(); |
dab9b8af0f01
util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
parents:
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519 startup.init_data_store(); |
dab9b8af0f01
util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
parents:
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520 startup.init_global_protection(); |
dab9b8af0f01
util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
parents:
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521 startup.prepare_to_start(); |
dab9b8af0f01
util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
parents:
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522 startup.notify_started(); |
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util.startup: Execute startup routine inside async context
Matthew Wild <mwild1@gmail.com>
parents:
8639
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523 end); |
8635
47e3b8b6f17a
prosody, prosodyctl, util.startup: Finally factor out startup-related and common code into a separate module
Matthew Wild <mwild1@gmail.com>
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524 end |
47e3b8b6f17a
prosody, prosodyctl, util.startup: Finally factor out startup-related and common code into a separate module
Matthew Wild <mwild1@gmail.com>
parents:
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changeset
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525 |
47e3b8b6f17a
prosody, prosodyctl, util.startup: Finally factor out startup-related and common code into a separate module
Matthew Wild <mwild1@gmail.com>
parents:
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526 return startup; |