2 -- Copyright (C) 2008-2010 Matthew Wild
3 -- Copyright (C) 2008-2010 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
10 local setmetatable, rawget, rawset, io, error, dofile, type, pairs, table =
11 setmetatable, rawget, rawset, io, error, dofile, type, pairs, table;
12 local format, math_max = string.format, math.max;
14 local fire_event = prosody and prosody.events.fire_event or function () end;
16 local envload = require"util.envload".envload;
17 local deps = require"util.dependencies";
18 local resolve_relative_path = require"util.paths".resolve_relative_path;
19 local glob_to_pattern = require"util.paths".glob_to_pattern;
20 local path_sep = package.config:sub(1,1);
22 local encodings = deps.softreq"util.encodings";
23 local nameprep = encodings and encodings.stringprep.nameprep or function (host) return host:lower(); end
28 _M.resolve_relative_path = resolve_relative_path; -- COMPAT
32 local config_mt = { __index = function (t, _) return rawget(t, "*"); end};
33 local config = setmetatable({ ["*"] = { } }, config_mt);
35 -- When host not found, use global
36 local host_mt = { __index = function(_, k) return config["*"][k] end }
38 function _M.getconfig()
42 function _M.get(host, key, _oldkey)
44 key = _oldkey; -- COMPAT with code that still uses "core"
46 return config[host][key];
48 function _M.rawget(host, key, _oldkey)
50 key = _oldkey; -- COMPAT with code that still uses "core"
52 local hostconfig = rawget(config, host);
54 return rawget(hostconfig, key);
58 local function set(config_table, host, key, value)
60 local hostconfig = rawget(config_table, host);
61 if not hostconfig then
62 hostconfig = rawset(config_table, host, setmetatable({}, host_mt))[host];
64 hostconfig[key] = value;
70 function _M.set(host, key, value, _oldvalue)
72 key, value = value, _oldvalue; --COMPAT with code that still uses "core"
74 return set(config, host, key, value);
77 function _M.load(filename, config_format)
78 config_format = config_format or filename:match("%w+$");
80 if parsers[config_format] and parsers[config_format].load then
81 local f, err = io.open(filename);
83 local new_config = setmetatable({ ["*"] = { } }, config_mt);
84 local ok, err = parsers[config_format].load(f:read("*a"), filename, new_config);
88 fire_event("config-reloaded", {
90 format = config_format,
94 return ok, "parser", err;
96 return f, "file", err;
99 if not config_format then
100 return nil, "file", "no parser specified";
102 return nil, "file", "no parser for "..(config_format);
106 function _M.addparser(config_format, parser)
107 if config_format and parser then
108 parsers[config_format] = parser;
112 -- _M needed to avoid name clash with local 'parsers'
113 function _M.parsers()
115 for config_format in pairs(parsers) do
116 table.insert(p, config_format);
121 -- Built-in Lua parser
123 local pcall = _G.pcall;
125 function parsers.lua.load(data, config_file, config_table)
127 -- The ' = true' are needed so as not to set off __newindex when we assign the functions below
129 Host = true, host = true, VirtualHost = true,
130 Component = true, component = true,
131 Include = true, include = true, RunScript = true }, {
132 __index = function (_, k)
133 return rawget(_G, k);
135 __newindex = function (_, k, v)
136 set(config_table, env.__currenthost or "*", k, v);
140 rawset(env, "__currenthost", "*") -- Default is global
141 function env.VirtualHost(name)
142 name = nameprep(name);
143 if rawget(config_table, name) and rawget(config_table[name], "component_module") then
144 error(format("Host %q clashes with previously defined %s Component %q, for services use a sub-domain like conference.%s",
145 name, config_table[name].component_module:gsub("^%a+$", { component = "external", muc = "MUC"}), name, name), 0);
147 rawset(env, "__currenthost", name);
148 -- Needs at least one setting to logically exist :)
149 set(config_table, name or "*", "defined", true);
150 return function (config_options)
151 rawset(env, "__currenthost", "*"); -- Return to global scope
152 for option_name, option_value in pairs(config_options) do
153 set(config_table, name or "*", option_name, option_value);
157 env.Host, env.host = env.VirtualHost, env.VirtualHost;
159 function env.Component(name)
160 name = nameprep(name);
161 if rawget(config_table, name) and rawget(config_table[name], "defined") and not rawget(config_table[name], "component_module") then
162 error(format("Component %q clashes with previously defined Host %q, for services use a sub-domain like conference.%s",
163 name, name, name), 0);
165 set(config_table, name, "component_module", "component");
166 -- Don't load the global modules by default
167 set(config_table, name, "load_global_modules", false);
168 rawset(env, "__currenthost", name);
169 local function handle_config_options(config_options)
170 rawset(env, "__currenthost", "*"); -- Return to global scope
171 for option_name, option_value in pairs(config_options) do
172 set(config_table, name or "*", option_name, option_value);
176 return function (module)
177 if type(module) == "string" then
178 set(config_table, name, "component_module", module);
179 return handle_config_options;
181 return handle_config_options(module);
184 env.component = env.Component;
186 function env.Include(file)
187 -- Check whether this is a wildcard Include
188 if file:match("[*?]") then
189 local lfs = deps.softreq "lfs";
191 error(format("Error expanding wildcard pattern in Include %q - LuaFileSystem not available", file));
193 local path_pos, glob = file:match("()([^"..path_sep.."]+)$");
194 local path = file:sub(1, math_max(path_pos-2,0));
195 local config_path = config_file:gsub("[^"..path_sep.."]+$", "");
197 path = resolve_relative_path(config_path, path);
201 local patt = glob_to_pattern(glob);
202 for f in lfs.dir(path) do
203 if f:sub(1,1) ~= "." and f:match(patt) then
204 env.Include(path..path_sep..f);
209 -- Not a wildcard, so resolve (potentially) relative path and run through config parser
210 file = resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file);
211 local f, err = io.open(file);
213 local ret, err = parsers.lua.load(f:read("*a"), file, config_table);
214 if not ret then error(err:gsub("%[string.-%]", file), 0); end
216 if not f then error("Error loading included "..file..": "..err, 0); end
219 env.include = env.Include;
221 function env.RunScript(file)
222 return dofile(resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file));
225 local chunk, err = envload(data, "@"..config_file, env);
231 local ok, err = pcall(chunk);