X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=core%2Fconfigmanager.lua;h=16d4b8e2f4a0ecb2841600bc01973c6c83d00b60;hb=5776f1c45d89bdfa6446d38a73b84b6ca107bdf8;hp=5f5648b9ce27160041387b50562512f78bc39614;hpb=cb3d8195cd7e6b85a947517846cf25590e5a45b3;p=prosody.git diff --git a/core/configmanager.lua b/core/configmanager.lua index 5f5648b9..16d4b8e2 100644 --- a/core/configmanager.lua +++ b/core/configmanager.lua @@ -1,121 +1,242 @@ +-- 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 = - setmetatable, loadfile, pcall, rawget, rawset, io; -module "configmanager" +local setmetatable, rawget, rawset, io, error, dofile, type, pairs, table = + setmetatable, rawget, rawset, io, error, dofile, type, pairs, table; +local format, math_max = string.format, math.max; -local parsers = {}; +local fire_event = prosody and prosody.events.fire_event or function () end; + +local envload = require"util.envload".envload; +local deps = require"util.dependencies"; +local resolve_relative_path = require"util.paths".resolve_relative_path; +local glob_to_pattern = require"util.paths".glob_to_pattern; +local path_sep = package.config:sub(1,1); + +local encodings = deps.softreq"util.encodings"; +local nameprep = encodings and encodings.stringprep.nameprep or function (host) return host:lower(); end + +local _M = {}; +local _ENV = nil; -local config = { ["*"] = { core = {} } }; +_M.resolve_relative_path = resolve_relative_path; -- COMPAT -local global_config = config["*"]; +local parsers = {}; + +local config_mt = { __index = function (t, _) return rawget(t, "*"); end}; +local config = setmetatable({ ["*"] = { } }, config_mt); -- When host not found, use global -setmetatable(config, { __index = function () return global_config; end}); -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 }; -end +local host_mt = { __index = function(_, k) return config["*"][k] end } -function getconfig() +function _M.getconfig() return config; end -function get(host, section, key) - local sec = config[host][section]; - if sec then - return sec[key]; +function _M.get(host, key, _oldkey) + if key == "core" then + key = _oldkey; -- COMPAT with code that still uses "core" + end + return config[host][key]; +end +function _M.rawget(host, key, _oldkey) + if key == "core" then + key = _oldkey; -- COMPAT with code that still uses "core" + end + local hostconfig = rawget(config, host); + if hostconfig then + return rawget(hostconfig, key); end - return nil; end -function set(host, section, key, value) - if host and section and key then - local hostconfig = rawget(config, host); +local function set(config_table, host, key, value) + if host and key then + local hostconfig = rawget(config_table, host); if not hostconfig then - hostconfig = rawset(config, host, setmetatable({}, host_mt))[host]; + hostconfig = rawset(config_table, host, setmetatable({}, host_mt))[host]; end - if not rawget(hostconfig, section) then - hostconfig[section] = setmetatable({}, section_mt(section)); - end - hostconfig[section][key] = value; + hostconfig[key] = value; return true; end return false; end -function load(filename, format) - format = format or filename:match("%w+$"); - if parsers[format] and parsers[format].load then - local f = io.open(filename); - if f then - local ok, err = parsers[format].load(f:read("*a")); +function _M.set(host, key, value, _oldvalue) + if key == "core" then + key, value = value, _oldvalue; --COMPAT with code that still uses "core" + end + return set(config, host, key, value); +end + +function _M.load(filename, config_format) + config_format = config_format or filename:match("%w+$"); + + if parsers[config_format] and parsers[config_format].load then + local f, err = io.open(filename); + if f then + local new_config = setmetatable({ ["*"] = { } }, config_mt); + local ok, err = parsers[config_format].load(f:read("*a"), filename, new_config); f:close(); - return ok, err; + if ok then + config = new_config; + fire_event("config-reloaded", { + filename = filename, + format = config_format, + config = config + }); + end + return ok, "parser", err; end + return f, "file", err; end - if not format then - return nil, "no parser specified"; + + if not config_format then + return nil, "file", "no parser specified"; else - return false, "no parser"; + return nil, "file", "no parser for "..(config_format); end end -function save(filename, format) +function _M.addparser(config_format, parser) + if config_format and parser then + parsers[config_format] = parser; + end end -function addparser(format, parser) - if format and parser then - parsers[format] = parser; +-- _M needed to avoid name clash with local 'parsers' +function _M.parsers() + local p = {}; + for config_format in pairs(parsers) do + table.insert(p, config_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; + local pcall = _G.pcall; parsers.lua = {}; - function parsers.lua.load(data) + function parsers.lua.load(data, config_file, config_table) local env; - env = setmetatable({ Host = true; host = true; }, { __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}); - - function env.Host(name) + -- 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 = true }, { + __index = function (_, k) + return rawget(_G, k); + end, + __newindex = function (_, k, v) + set(config_table, env.__currenthost or "*", k, v); + end + }); + + rawset(env, "__currenthost", "*") -- Default is global + function env.VirtualHost(name) + name = nameprep(name); + if rawget(config_table, name) and rawget(config_table[name], "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_table[name].component_module:gsub("^%a+$", { component = "external", muc = "MUC"}), name, name), 0); + end + rawset(env, "__currenthost", name); + -- Needs at least one setting to logically exist :) + set(config_table, name or "*", "defined", true); + return function (config_options) + rawset(env, "__currenthost", "*"); -- Return to global scope + for option_name, option_value in pairs(config_options) do + set(config_table, name or "*", option_name, option_value); + end + end; + end + env.Host, env.host = env.VirtualHost, env.VirtualHost; + + function env.Component(name) + name = nameprep(name); + if rawget(config_table, name) and rawget(config_table[name], "defined") and not rawget(config_table[name], "component_module") then + error(format("Component %q clashes with previously defined Host %q, for services use a sub-domain like conference.%s", + name, name, name), 0); + end + set(config_table, name, "component_module", "component"); + -- Don't load the global modules by default + set(config_table, name, "load_global_modules", false); rawset(env, "__currenthost", name); - set(name or "*", "core", "defined", true); + local function handle_config_options(config_options) + rawset(env, "__currenthost", "*"); -- Return to global scope + for option_name, option_value in pairs(config_options) do + set(config_table, name or "*", option_name, option_value); + end + end + + return function (module) + if type(module) == "string" then + set(config_table, name, "component_module", module); + return handle_config_options; + end + return handle_config_options(module); + end + end + env.component = env.Component; + + function env.Include(file) + -- Check whether this is a wildcard Include + if file:match("[*?]") then + local lfs = deps.softreq "lfs"; + if not lfs then + error(format("Error expanding wildcard pattern in Include %q - LuaFileSystem not available", file)); + end + local path_pos, glob = file:match("()([^"..path_sep.."]+)$"); + local path = file:sub(1, math_max(path_pos-2,0)); + local config_path = config_file:gsub("[^"..path_sep.."]+$", ""); + if #path > 0 then + path = resolve_relative_path(config_path, path); + else + path = config_path; + end + local patt = glob_to_pattern(glob); + for f in lfs.dir(path) do + if f:sub(1,1) ~= "." and f:match(patt) then + env.Include(path..path_sep..f); + end + end + return; + end + -- Not a wildcard, so resolve (potentially) relative path and run through config parser + file = resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file); + local f, err = io.open(file); + if f then + local ret, err = parsers.lua.load(f:read("*a"), file, config_table); + 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 - env.host = env.Host; - - local chunk, err = loadstring(data); - + env.include = env.Include; + + function env.RunScript(file) + return dofile(resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file)); + end + + local chunk, err = envload(data, "@"..config_file, env); + if not chunk then return nil, err; end - - setfenv(chunk, env); - + local ok, err = pcall(chunk); - + if not ok then return nil, err; end - + return true; end - + end -return _M; \ No newline at end of file +return _M;