eventmanager: REMOVE!!!
[prosody.git] / core / configmanager.lua
index cc7ffb7e46e541ebe24235f7065c523b0a5f1624..6b181443edf151133d4770bbde291210335d378f 100644 (file)
@@ -1,5 +1,20 @@
+-- Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
+-- 
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+
 
 local _G = _G;
+local  setmetatable, loadfile, pcall, rawget, rawset, io, error, dofile, type, pairs, table, format =
+               setmetatable, loadfile, pcall, rawget, rawset, io, error, dofile, type, pairs, table, string.format;
+
+
+local fire_event = prosody and prosody.events.fire_event or function () end;
+
 module "configmanager"
 
 local parsers = {};
@@ -15,10 +30,15 @@ local host_mt = { __index = global_config };
 -- When key not found in section, check key in global's section
 function section_mt(section_name)
        return { __index =      function (t, k)
-                                                                       local section = rawget(global_config, section_name);
-                                                                       if not section then return nil; end
-                                                                       return section[k];
-                                                       end };
+                                       local section = rawget(global_config, section_name);
+                                       if not section then return nil; end
+                                       return section[k];
+                               end
+       };
+end
+
+function getconfig()
+       return config;
 end
 
 function get(host, section, key)
@@ -45,15 +65,26 @@ function set(host, section, key, value)
 end
 
 function load(filename, format)
+       format = format or filename:match("%w+$");
+
        if parsers[format] and parsers[format].load then
-               local f = io.open(filename);
-               if f then 
-                       local ok, err = parsers[format](f:read("*a"));
+               local f, err = io.open(filename);
+               if f then
+                       local ok, err = parsers[format].load(f:read("*a"), filename);
                        f:close();
-                       return ok, err;
+                       if ok then
+                               fire_event("config-reloaded", { filename = filename, format = format });
+                       end
+                       return ok, "parser", err;
                end
+               return f, "file", err;
+       end
+
+       if not format then
+               return nil, "file", "no parser specified";
+       else
+               return nil, "file", "no parser for "..(format);
        end
-       return false, "no parser";
 end
 
 function save(filename, format)
@@ -65,23 +96,81 @@ function addparser(format, parser)
        end
 end
 
+-- _M needed to avoid name clash with local 'parsers'
+function _M.parsers()
+       local p = {};
+       for format in pairs(parsers) do
+               table.insert(p, format);
+       end
+       return p;
+end
+
+-- Built-in Lua parser
 do
+       local loadstring, pcall, setmetatable = _G.loadstring, _G.pcall, _G.setmetatable;
+       local setfenv, rawget, tostring = _G.setfenv, _G.rawget, _G.tostring;
        parsers.lua = {};
-       function parsers.lua.load(data)
-               local env = setmetatable({}, { __index = function (t, k)
-                                                                                       if k:match("^mod_") then
-                                                                                               return function (settings_table)
-                                                                                                                       config[__currenthost or "*"][k] = settings_table;
-                                                                                                               end;
-                                                                                       end
-                                                                                       return rawget(_G, k);
-                                                                               end});
+       function parsers.lua.load(data, filename)
+               local env;
+               -- The ' = true' are needed so as not to set off __newindex when we assign the functions below
+               env = setmetatable({
+                       Host = true, host = true, VirtualHost = true,
+                       Component = true, component = true,
+                       Include = true, include = true, RunScript = dofile }, {
+                               __index = function (t, k)
+                                       return rawget(_G, k) or
+                                               function (settings_table)
+                                                       config[__currenthost or "*"][k] = settings_table;
+                                               end;
+                               end,
+                               __newindex = function (t, k, v)
+                                       set(env.__currenthost or "*", "core", k, v);
+                               end
+               });
+               
+               rawset(env, "__currenthost", "*") -- Default is global
+               function env.VirtualHost(name)
+                       if rawget(config, name) and rawget(config[name].core, "component_module") then
+                               error(format("Host %q clashes with previously defined %s Component %q, for services use a sub-domain like conference.%s",
+                                       name, config[name].core.component_module:gsub("^%a+$", { component = "external", muc = "MUC"}), name, name), 0);
+                       end
+                       rawset(env, "__currenthost", name);
+                       -- Needs at least one setting to logically exist :)
+                       set(name or "*", "core", "defined", true);
+               end
+               env.Host, env.host = env.VirtualHost, env.VirtualHost;
                
-               function env.Host(name)
-                       env.__currenthost = name;
+               function env.Component(name)
+                       if rawget(config, name) and rawget(config[name].core, "defined") and not rawget(config[name].core, "component_module") then
+                               error(format("Component %q clashes with previously defined Host %q, for services use a sub-domain like conference.%s",
+                                       name, name, name), 0);
+                       end
+                       set(name, "core", "component_module", "component");
+                       -- Don't load the global modules by default
+                       set(name, "core", "load_global_modules", false);
+                       rawset(env, "__currenthost", name);
+       
+                       return function (module)
+                                       if type(module) == "string" then
+                                               set(name, "core", "component_module", module);
+                                       end
+                               end
+               end
+               env.component = env.Component;
+               
+               function env.Include(file)
+                       local f, err = io.open(file);
+                       if f then
+                               local data = f:read("*a");
+                               local ok, err = parsers.lua.load(data, file);
+                               if not ok then error(err:gsub("%[string.-%]", file), 0); end
+                       end
+                       if not f then error("Error loading included "..file..": "..err, 0); end
+                       return f, err;
                end
+               env.include = env.Include;
                
-               local chunk, err = loadstring(data);
+               local chunk, err = loadstring(data, "@"..filename);
                
                if not chunk then
                        return nil, err;
@@ -95,11 +184,9 @@ do
                        return nil, err;
                end
                
-               
-               
                return true;
        end
        
 end
 
-return _M;
\ No newline at end of file
+return _M;