prosody
301d58705667
core/configmanager.lua

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core/configmanager.lua @ 7100:301d58705667

mod_c2s, mod_s2s: Lower priority of session shutdown to negative, so that plugins hooking at the default priority run first (fixes #601)
author Kim Alvefur <zash@zash.se>
date Tue, 26 Jan 2016 00:28:07 +0100
parent 6323:5926f01e5cd2
child 6326:a3b9496673ee
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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diff changeset
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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b1885732e979 GPL->MIT!
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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 _G = _G;
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10 local setmetatable, rawget, rawset, io, error, dofile, type, pairs, table =
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11 setmetatable, rawget, rawset, io, error, dofile, type, pairs, table;
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12 local format, math_max = string.format, math.max;
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13
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14 local fire_event = prosody and prosody.events.fire_event or function () end;
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15
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16 local envload = require"util.envload".envload;
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17 local deps = require"util.dependencies";
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18 local path_sep = package.config:sub(1,1);
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19
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20 local have_encodings, encodings = pcall(require, "util.encodings");
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21 local nameprep = have_encodings and encodings.stringprep.nameprep or function (host) return host:lower(); end
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22
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23 module "configmanager"
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24
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25 local parsers = {};
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26
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27 local config_mt = { __index = function (t, k) return rawget(t, "*"); end};
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28 local config = setmetatable({ ["*"] = { } }, config_mt);
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29
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30 -- When host not found, use global
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31 local host_mt = { __index = function(_, k) return config["*"][k] end }
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32
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33 function getconfig()
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34 return config;
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35 end
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36
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37 function get(host, key, _oldkey)
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38 if key == "core" then
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39 key = _oldkey; -- COMPAT with code that still uses "core"
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40 end
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41 return config[host][key];
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42 end
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43 function _M.rawget(host, key, _oldkey)
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44 if key == "core" then
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45 key = _oldkey; -- COMPAT with code that still uses "core"
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46 end
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47 local hostconfig = rawget(config, host);
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48 if hostconfig then
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49 return rawget(hostconfig, key);
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50 end
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51 end
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52
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53 local function set(config, host, key, value)
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54 if host and key then
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55 local hostconfig = rawget(config, host);
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56 if not hostconfig then
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57 hostconfig = rawset(config, host, setmetatable({}, host_mt))[host];
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58 end
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59 hostconfig[key] = value;
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60 return true;
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61 end
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62 return false;
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63 end
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64
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65 function _M.set(host, key, value, _oldvalue)
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66 if key == "core" then
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67 key, value = value, _oldvalue; --COMPAT with code that still uses "core"
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68 end
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69 return set(config, host, key, value);
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70 end
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71
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72 -- Helper function to resolve relative paths (needed by config)
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73 do
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74 function resolve_relative_path(parent_path, path)
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75 if path then
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76 -- Some normalization
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77 parent_path = parent_path:gsub("%"..path_sep.."+$", "");
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78 path = path:gsub("^%.%"..path_sep.."+", "");
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79
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80 local is_relative;
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81 if path_sep == "/" and path:sub(1,1) ~= "/" then
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82 is_relative = true;
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83 elseif path_sep == "\\" and (path:sub(1,1) ~= "/" and (path:sub(2,3) ~= ":\\" and path:sub(2,3) ~= ":/")) then
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84 is_relative = true;
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85 end
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86 if is_relative then
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87 return parent_path..path_sep..path;
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88 end
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89 end
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90 return path;
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91 end
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92 end
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93
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94 -- Helper function to convert a glob to a Lua pattern
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95 local function glob_to_pattern(glob)
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96 return "^"..glob:gsub("[%p*?]", function (c)
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97 if c == "*" then
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98 return ".*";
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99 elseif c == "?" then
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100 return ".";
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101 else
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102 return "%"..c;
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103 end
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104 end).."$";
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105 end
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106
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107 function load(filename, format)
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108 format = format or filename:match("%w+$");
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109
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110 if parsers[format] and parsers[format].load then
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111 local f, err = io.open(filename);
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112 if f then
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113 local new_config = setmetatable({ ["*"] = { } }, config_mt);
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114 local ok, err = parsers[format].load(f:read("*a"), filename, new_config);
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115 f:close();
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116 if ok then
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117 config = new_config;
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118 fire_event("config-reloaded", {
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119 filename = filename,
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120 format = format,
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121 config = config
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diff changeset
122 });
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123 end
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diff changeset
124 return ok, "parser", err;
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125 end
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126 return f, "file", err;
371
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127 end
466
0ecfd89c2cc0 Fix for configmanager when config file can't be found
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diff changeset
128
376
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diff changeset
129 if not format then
793
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130 return nil, "file", "no parser specified";
376
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131 else
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132 return nil, "file", "no parser for "..(format);
376
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133 end
371
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134 end
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135
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136 function save(filename, format)
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137 end
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138
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139 function addparser(format, parser)
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140 if format and parser then
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141 parsers[format] = parser;
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142 end
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143 end
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144
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145 -- _M needed to avoid name clash with local 'parsers'
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146 function _M.parsers()
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147 local p = {};
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148 for format in pairs(parsers) do
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149 table.insert(p, format);
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150 end
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151 return p;
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152 end
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153
376
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154 -- Built-in Lua parser
371
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155 do
5021
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Florian Zeitz <florob@babelmonkeys.de>
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diff changeset
156 local pcall, setmetatable = _G.pcall, _G.setmetatable;
5413
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157 local rawget = _G.rawget;
371
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158 parsers.lua = {};
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diff changeset
159 function parsers.lua.load(data, config_file, config)
376
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160 local env;
750
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161 -- The ' = true' are needed so as not to set off __newindex when we assign the functions below
2975
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parents: 2974
diff changeset
162 env = setmetatable({
3012
6d86e26f0923 Merge configmanager->trunk
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diff changeset
163 Host = true, host = true, VirtualHost = true,
6d86e26f0923 Merge configmanager->trunk
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164 Component = true, component = true,
3610
2084959d4096 configmanager: Update Include and RunScript directives to support paths relative to the (current!) config file
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parents: 3609
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165 Include = true, include = true, RunScript = true }, {
2975
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parents: 2974
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166 __index = function (t, k)
5357
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167 return rawget(_G, k);
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168 end,
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169 __newindex = function (t, k, v)
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170 set(config, env.__currenthost or "*", k, v);
2975
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171 end
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172 });
371
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173
1615
0e3eacf135f2 configmanager: Default options appearing before Host "*" to global (fixes potential traceback)
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parents: 1523
diff changeset
174 rawset(env, "__currenthost", "*") -- Default is global
3011
1189a29cd846 configmanager: Add VirtualHost as an alias for Host (re-applied in trunk due to previous bad merge with 0.7)
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parents: 2925
diff changeset
175 function env.VirtualHost(name)
6323
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176 name = nameprep(name);
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diff changeset
177 if rawget(config, name) and rawget(config[name], "component_module") then
2861
1402615b66f8 configmanager: Error when a component and host clash hostnames
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178 error(format("Host %q clashes with previously defined %s Component %q, for services use a sub-domain like conference.%s",
5357
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179 name, config[name].component_module:gsub("^%a+$", { component = "external", muc = "MUC"}), name, name), 0);
2861
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180 end
376
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diff changeset
181 rawset(env, "__currenthost", name);
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182 -- Needs at least one setting to logically exist :)
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183 set(config, name or "*", "defined", true);
3515
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184 return function (config_options)
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185 rawset(env, "__currenthost", "*"); -- Return to global scope
bb494c3aa364 configmanager: Allow VirtualHost/Component definitions to be followed by a table of config options
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parents: 3384
diff changeset
186 for option_name, option_value in pairs(config_options) do
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187 set(config, name or "*", option_name, option_value);
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188 end
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189 end;
371
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190 end
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diff changeset
191 env.Host, env.host = env.VirtualHost, env.VirtualHost;
371
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diff changeset
192
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diff changeset
193 function env.Component(name)
6323
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diff changeset
194 name = nameprep(name);
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diff changeset
195 if rawget(config, name) and rawget(config[name], "defined") and not rawget(config[name], "component_module") then
2861
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parents: 1777
diff changeset
196 error(format("Component %q clashes with previously defined Host %q, for services use a sub-domain like conference.%s",
1402615b66f8 configmanager: Error when a component and host clash hostnames
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parents: 1777
diff changeset
197 name, name, name), 0);
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diff changeset
198 end
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199 set(config, name, "component_module", "component");
913
3e2dac84017d core.configmanager: Make components use 'component' module by default if none specified
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parents: 896
diff changeset
200 -- Don't load the global modules by default
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diff changeset
201 set(config, name, "load_global_modules", false);
913
3e2dac84017d core.configmanager: Make components use 'component' module by default if none specified
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parents: 896
diff changeset
202 rawset(env, "__currenthost", name);
3515
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parents: 3384
diff changeset
203 local function handle_config_options(config_options)
bb494c3aa364 configmanager: Allow VirtualHost/Component definitions to be followed by a table of config options
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parents: 3384
diff changeset
204 rawset(env, "__currenthost", "*"); -- Return to global scope
bb494c3aa364 configmanager: Allow VirtualHost/Component definitions to be followed by a table of config options
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parents: 3384
diff changeset
205 for option_name, option_value in pairs(config_options) do
5357
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diff changeset
206 set(config, name or "*", option_name, option_value);
3515
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parents: 3384
diff changeset
207 end
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parents: 3384
diff changeset
208 end
913
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parents: 896
diff changeset
209
750
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diff changeset
210 return function (module)
857
49298263f241 core.configmanager: Small fix to check validity of Component definitions
Matthew Wild <mwild1@gmail.com>
parents: 795
diff changeset
211 if type(module) == "string" then
5357
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parents: 5124
diff changeset
212 set(config, name, "component_module", module);
3515
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parents: 3384
diff changeset
213 return handle_config_options;
857
49298263f241 core.configmanager: Small fix to check validity of Component definitions
Matthew Wild <mwild1@gmail.com>
parents: 795
diff changeset
214 end
3515
bb494c3aa364 configmanager: Allow VirtualHost/Component definitions to be followed by a table of config options
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parents: 3384
diff changeset
215 return handle_config_options(module);
750
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parents: 615
diff changeset
216 end
fbfcf8c1c830 configmanager: Add support for defining components
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parents: 615
diff changeset
217 end
fbfcf8c1c830 configmanager: Add support for defining components
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parents: 615
diff changeset
218 env.component = env.Component;
fbfcf8c1c830 configmanager: Add support for defining components
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parents: 615
diff changeset
219
5413
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diff changeset
220 function env.Include(file)
3905
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parents: 3780
diff changeset
221 if file:match("[*?]") then
6166
46cb87d531a7 configmanager: Delay importing LuaFileSystem until needed by an Include line
Kim Alvefur <zash@zash.se>
parents: 5811
diff changeset
222 local lfs = deps.softreq "lfs";
46cb87d531a7 configmanager: Delay importing LuaFileSystem until needed by an Include line
Kim Alvefur <zash@zash.se>
parents: 5811
diff changeset
223 if not lfs then
46cb87d531a7 configmanager: Delay importing LuaFileSystem until needed by an Include line
Kim Alvefur <zash@zash.se>
parents: 5811
diff changeset
224 error(format("Error expanding wildcard pattern in Include %q - LuaFileSystem not available", file));
46cb87d531a7 configmanager: Delay importing LuaFileSystem until needed by an Include line
Kim Alvefur <zash@zash.se>
parents: 5811
diff changeset
225 end
3905
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parents: 3780
diff changeset
226 local path_pos, glob = file:match("()([^"..path_sep.."]+)$");
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
227 local path = file:sub(1, math_max(path_pos-2,0));
3929
7cb03d67101b configmanager: Filenames without a path are also relative to the config file path, not the current working directory
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parents: 3905
diff changeset
228 local config_path = config_file:gsub("[^"..path_sep.."]+$", "");
3905
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
229 if #path > 0 then
3929
7cb03d67101b configmanager: Filenames without a path are also relative to the config file path, not the current working directory
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parents: 3905
diff changeset
230 path = resolve_relative_path(config_path, path);
3905
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parents: 3780
diff changeset
231 else
3929
7cb03d67101b configmanager: Filenames without a path are also relative to the config file path, not the current working directory
Matthew Wild <mwild1@gmail.com>
parents: 3905
diff changeset
232 path = config_path;
3905
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parents: 3780
diff changeset
233 end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
234 local patt = glob_to_pattern(glob);
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
235 for f in lfs.dir(path) do
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
236 if f:sub(1,1) ~= "." and f:match(patt) then
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
237 env.Include(path..path_sep..f);
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
238 end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
239 end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
Matthew Wild <mwild1@gmail.com>
parents: 3780
diff changeset
240 else
5124
a4a74a0e9b9c configmanager: Fix include of relative files via Include directive in config
Matthew Wild <mwild1@gmail.com>
parents: 5021
diff changeset
241 local file = resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file);
3905
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
242 local f, err = io.open(file);
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
243 if f then
5124
a4a74a0e9b9c configmanager: Fix include of relative files via Include directive in config
Matthew Wild <mwild1@gmail.com>
parents: 5021
diff changeset
244 local ret, err = parsers.lua.load(f:read("*a"), file, config);
3905
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
245 if not ret then error(err:gsub("%[string.-%]", file), 0); end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
246 end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
247 if not f then error("Error loading included "..file..": "..err, 0); end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
248 return f, err;
794
912dc389935a Add Include command to include extra configuration files from the main one
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parents: 793
diff changeset
249 end
912dc389935a Add Include command to include extra configuration files from the main one
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parents: 793
diff changeset
250 end
912dc389935a Add Include command to include extra configuration files from the main one
Matthew Wild <mwild1@gmail.com>
parents: 793
diff changeset
251 env.include = env.Include;
912dc389935a Add Include command to include extra configuration files from the main one
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parents: 793
diff changeset
252
3610
2084959d4096 configmanager: Update Include and RunScript directives to support paths relative to the (current!) config file
Matthew Wild <mwild1@gmail.com>
parents: 3609
diff changeset
253 function env.RunScript(file)
3905
9222dad9e1e8 configmanager: Support for wildcards in Include directives
Matthew Wild <mwild1@gmail.com>
parents: 3780
diff changeset
254 return dofile(resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file));
3610
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Matthew Wild <mwild1@gmail.com>
parents: 3609
diff changeset
255 end
2084959d4096 configmanager: Update Include and RunScript directives to support paths relative to the (current!) config file
Matthew Wild <mwild1@gmail.com>
parents: 3609
diff changeset
256
5021
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4530
diff changeset
257 local chunk, err = envload(data, "@"..config_file, env);
371
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
diff changeset
258
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
diff changeset
259 if not chunk then
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
260 return nil, err;
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
261 end
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
262
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
263 local ok, err = pcall(chunk);
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
264
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
265 if not ok then
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
266 return nil, err;
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
267 end
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
268
3613
f617718d2221 configmanager: Change parser API again to pass a config table to insert settings to. Fixes Include(). (Thanks Zash/answerman)
Matthew Wild <mwild1@gmail.com>
parents: 3610
diff changeset
269 return true;
371
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
270 end
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
271
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
272 end
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
273
466
0ecfd89c2cc0 Fix for configmanager when config file can't be found
Matthew Wild <mwild1@gmail.com>
parents: 376
diff changeset
274 return _M;