util.pubsub: Some tidying/optimisation to service:may()
[prosody.git] / core / configmanager.lua
index ca23b136e26ee409230dee171cbb98ad63a93bbf..4cc3ef467f963b360d6dbb573a3641ded702b744 100644 (file)
@@ -7,12 +7,15 @@
 --
 
 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 setmetatable, loadfile, pcall, rawget, rawset, io, error, dofile, type, pairs, table =
+      setmetatable, loadfile, pcall, rawget, rawset, io, error, dofile, type, pairs, table;
+local format, math_max = string.format, math.max;
 
 local fire_event = prosody and prosody.events.fire_event or function () end;
 
+local lfs = require "lfs";
+local path_sep = package.config:sub(1,1);
+
 module "configmanager"
 
 local parsers = {};
@@ -44,6 +47,15 @@ function get(host, section, key)
        end
        return nil;
 end
+function _M.rawget(host, section, key)
+       local hostconfig = rawget(config, host);
+       if hostconfig then
+               local sectionconfig = rawget(hostconfig, section);
+               if sectionconfig then
+                       return rawget(sectionconfig, key);
+               end
+       end
+end
 
 local function set(config, host, section, key, value)
        if host and section and key then
@@ -64,16 +76,52 @@ function _M.set(host, section, key, value)
        return set(config, host, section, key, value);
 end
 
+-- Helper function to resolve relative paths (needed by config)
+do
+       local rel_path_start = ".."..path_sep;
+       function resolve_relative_path(parent_path, path)
+               if path then
+                       -- Some normalization
+                       parent_path = parent_path:gsub("%"..path_sep.."+$", "");
+                       path = path:gsub("^%.%"..path_sep.."+", "");
+                       
+                       local is_relative;
+                       if path_sep == "/" and path:sub(1,1) ~= "/" then
+                               is_relative = true;
+                       elseif path_sep == "\\" and (path:sub(1,1) ~= "/" and path:sub(2,3) ~= ":\\") then
+                               is_relative = true;
+                       end
+                       if is_relative then
+                               return parent_path..path_sep..path;
+                       end
+               end
+               return path;
+       end     
+end
+
+-- Helper function to convert a glob to a Lua pattern
+local function glob_to_pattern(glob)
+       return "^"..glob:gsub("[%p*?]", function (c)
+               if c == "*" then
+                       return ".*";
+               elseif c == "?" then
+                       return ".";
+               else
+                       return "%"..c;
+               end
+       end).."$";
+end
+
 function load(filename, format)
        format = format or filename:match("%w+$");
 
        if parsers[format] and parsers[format].load then
                local f, err = io.open(filename);
                if f then
-                       local new_config, err = parsers[format].load(f:read("*a"), filename);
+                       local new_config = setmetatable({ ["*"] = { core = {} } }, config_mt);
+                       local ok, err = parsers[format].load(f:read("*a"), filename, new_config);
                        f:close();
-                       if new_config then
-                               setmetatable(new_config, config_mt);
+                       if ok then
                                config = new_config;
                                fire_event("config-reloaded", {
                                        filename = filename,
@@ -81,7 +129,7 @@ function load(filename, format)
                                        config = config
                                });
                        end
-                       return not not new_config, "parser", err;
+                       return ok, "parser", err;
                end
                return f, "file", err;
        end
@@ -116,15 +164,13 @@ 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, filename)
-               local config = { ["*"] = { core = {} } };
-       
+       function parsers.lua.load(data, config_file, config)
                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 }, {
+                       Include = true, include = true, RunScript = true }, {
                                __index = function (t, k)
                                        return rawget(_G, k) or
                                                function (settings_table)
@@ -180,19 +226,41 @@ do
                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
+               function env.Include(file, wildcard)
+                       if file:match("[*?]") then
+                               local path_pos, glob = file:match("()([^"..path_sep.."]+)$");
+                               local path = file:sub(1, math_max(path_pos-2,0));
+                               local config_path = config_file:gsub("[^"..path_sep.."]+$", "");
+                               if #path > 0 then
+                                       path = resolve_relative_path(config_path, path);
+                               else
+                                       path = config_path;
+                               end
+                               local patt = glob_to_pattern(glob);
+                               for f in lfs.dir(path) do
+                                       if f:sub(1,1) ~= "." and f:match(patt) then
+                                               env.Include(path..path_sep..f);
+                                       end
+                               end
+                       else
+                               local f, err = io.open(file);
+                               if f then
+                                       local data = f:read("*a");
+                                       local file = resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file);
+                                       local ret, err = parsers.lua.load(data, file, config);
+                                       if not ret 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
-                       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, "@"..filename);
+               function env.RunScript(file)
+                       return dofile(resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file));
+               end
+               
+               local chunk, err = loadstring(data, "@"..config_file);
                
                if not chunk then
                        return nil, err;
@@ -206,7 +274,7 @@ do
                        return nil, err;
                end
                
-               return config;
+               return true;
        end
        
 end