diff options
| -rw-r--r-- | core/moduleapi.lua | 239 | ||||
| -rw-r--r-- | core/modulemanager.lua | 213 |
2 files changed, 240 insertions, 212 deletions
diff --git a/core/moduleapi.lua b/core/moduleapi.lua new file mode 100644 index 00000000..ee960709 --- /dev/null +++ b/core/moduleapi.lua @@ -0,0 +1,239 @@ +-- Prosody IM +-- Copyright (C) 2008-2012 Matthew Wild +-- Copyright (C) 2008-2012 Waqas Hussain +-- +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. +-- + +local config = require "core.configmanager"; +local modulemanager = require "modulemanager"; +local array = require "util.array"; +local set = require "util.set"; +local logger = require "util.logger"; +local pluginloader = require "util.pluginloader"; + +local multitable_new = require "util.multitable".new; + +local t_insert, t_remove, t_concat = table.insert, table.remove, table.concat; +local error, setmetatable, setfenv, type = error, setmetatable, setfenv, type; +local ipairs, pairs, select, unpack = ipairs, pairs, select, unpack; +local tonumber, tostring = tonumber, tostring; + +local prosody = prosody; +local hosts = prosody.hosts; + +-- Registry of shared module data +local shared_data = setmetatable({}, { __mode = "v" }); + +local NULL = {}; + +local api = {}; + +-- Returns the name of the current module +function api:get_name() + return self.name; +end + +-- Returns the host that the current module is serving +function api:get_host() + return self.host; +end + +function api:get_host_type() + return hosts[self.host].type; +end + +function api:set_global() + self.host = "*"; + -- Update the logger + local _log = logger.init("mod_"..self.name); + self.log = function (self, ...) return _log(...); end; + self._log = _log; +end + +function api:add_feature(xmlns) + self:add_item("feature", xmlns); +end +function api:add_identity(category, type, name) + self:add_item("identity", {category = category, type = type, name = name}); +end +function api:add_extension(data) + self:add_item("extension", data); +end + +function api:fire_event(...) + return (hosts[self.host] or prosody).events.fire_event(...); +end + +function api:hook(event, handler, priority) + hooks:set(self.host, self.name, event, handler, true); + (hosts[self.host] or prosody).events.add_handler(event, handler, priority); +end + +function api:hook_global(event, handler, priority) + hooks:set("*", self.name, event, handler, true); + prosody.events.add_handler(event, handler, priority); +end + +function api:hook_stanza(xmlns, name, handler, priority) + if not handler and type(name) == "function" then + -- If only 2 options then they specified no xmlns + xmlns, name, handler, priority = nil, xmlns, name, handler; + elseif not (handler and name) then + self:log("warn", "Error: Insufficient parameters to module:hook_stanza()"); + return; + end + return self:hook("stanza/"..(xmlns and (xmlns..":") or "")..name, function (data) return handler(data.origin, data.stanza, data); end, priority); +end + +function api:require(lib) + local f, n = pluginloader.load_code(self.name, lib..".lib.lua"); + if not f then + f, n = pluginloader.load_code(lib, lib..".lib.lua"); + end + if not f then error("Failed to load plugin library '"..lib.."', error: "..n); end -- FIXME better error message + setfenv(f, self.environment); + return f(); +end + +function api:get_option(name, default_value) + local value = config.get(self.host, self.name, name); + if value == nil then + value = config.get(self.host, "core", name); + if value == nil then + value = default_value; + end + end + return value; +end + +function api:get_option_string(name, default_value) + local value = self:get_option(name, default_value); + if type(value) == "table" then + if #value > 1 then + self:log("error", "Config option '%s' does not take a list, using just the first item", name); + end + value = value[1]; + end + if value == nil then + return nil; + end + return tostring(value); +end + +function api:get_option_number(name, ...) + local value = self:get_option(name, ...); + if type(value) == "table" then + if #value > 1 then + self:log("error", "Config option '%s' does not take a list, using just the first item", name); + end + value = value[1]; + end + local ret = tonumber(value); + if value ~= nil and ret == nil then + self:log("error", "Config option '%s' not understood, expecting a number", name); + end + return ret; +end + +function api:get_option_boolean(name, ...) + local value = self:get_option(name, ...); + if type(value) == "table" then + if #value > 1 then + self:log("error", "Config option '%s' does not take a list, using just the first item", name); + end + value = value[1]; + end + if value == nil then + return nil; + end + local ret = value == true or value == "true" or value == 1 or nil; + if ret == nil then + ret = (value == false or value == "false" or value == 0); + if ret then + ret = false; + else + ret = nil; + end + end + if ret == nil then + self:log("error", "Config option '%s' not understood, expecting true/false", name); + end + return ret; +end + +function api:get_option_array(name, ...) + local value = self:get_option(name, ...); + + if value == nil then + return nil; + end + + if type(value) ~= "table" then + return array{ value }; -- Assume any non-list is a single-item list + end + + return array():append(value); -- Clone +end + +function api:get_option_set(name, ...) + local value = self:get_option_array(name, ...); + + if value == nil then + return nil; + end + + return set.new(value); +end + +local module_items = multitable_new(); +function api:add_item(key, value) + self.items = self.items or {}; + self.items[key] = self.items[key] or {}; + t_insert(self.items[key], value); + self:fire_event("item-added/"..key, {source = self, item = value}); +end +function api:remove_item(key, value) + local t = self.items and self.items[key] or NULL; + for i = #t,1,-1 do + if t[i] == value then + t_remove(self.items[key], i); + self:fire_event("item-removed/"..key, {source = self, item = value}); + return value; + end + end +end + +function api:get_host_items(key) + local result = {}; + for mod_name, module in pairs(modulemanager.get_modules(self.host)) do + module = module.module; + if module.items then + for _, item in ipairs(module.items[key] or NULL) do + t_insert(result, item); + end + end + end + for mod_name, module in pairs(modulemanager.get_modules("*")) do + module = module.module; + if module.items then + for _, item in ipairs(module.items[key] or NULL) do + t_insert(result, item); + end + end + end + return result; +end + +function api:handle_items(type, added_cb, removed_cb, existing) + self:hook("item-added/"..type, added_cb); + self:hook("item-removed/"..type, removed_cb); + if existing ~= false then + for _, item in ipairs(self:get_host_items(type)) do + added_cb({ item = item }); + end + end +end + +return api; diff --git a/core/modulemanager.lua b/core/modulemanager.lua index c4d95695..bbe24e32 100644 --- a/core/modulemanager.lua +++ b/core/modulemanager.lua @@ -45,8 +45,7 @@ local _G = _G; module "modulemanager" -api = {}; -local api = api; -- Module API container +local api = _G.require "core.moduleapi"; -- Module API container local modulemap = { ["*"] = {} }; @@ -253,214 +252,4 @@ function call_module_method(module, method, ...) end end ------ API functions exposed to modules ----------- --- Must all be in api.* - --- Returns the name of the current module -function api:get_name() - return self.name; -end - --- Returns the host that the current module is serving -function api:get_host() - return self.host; -end - -function api:get_host_type() - return hosts[self.host].type; -end - -function api:set_global() - self.host = "*"; - -- Update the logger - local _log = logger.init("mod_"..self.name); - self.log = function (self, ...) return _log(...); end; - self._log = _log; -end - -function api:add_feature(xmlns) - self:add_item("feature", xmlns); -end -function api:add_identity(category, type, name) - self:add_item("identity", {category = category, type = type, name = name}); -end -function api:add_extension(data) - self:add_item("extension", data); -end - -function api:fire_event(...) - return (hosts[self.host] or prosody).events.fire_event(...); -end - -function api:hook(event, handler, priority) - hooks:set(self.host, self.name, event, handler, true); - (hosts[self.host] or prosody).events.add_handler(event, handler, priority); -end - -function api:hook_global(event, handler, priority) - hooks:set("*", self.name, event, handler, true); - prosody.events.add_handler(event, handler, priority); -end - -function api:hook_stanza(xmlns, name, handler, priority) - if not handler and type(name) == "function" then - -- If only 2 options then they specified no xmlns - xmlns, name, handler, priority = nil, xmlns, name, handler; - elseif not (handler and name) then - self:log("warn", "Error: Insufficient parameters to module:hook_stanza()"); - return; - end - return api.hook(self, "stanza/"..(xmlns and (xmlns..":") or "")..name, function (data) return handler(data.origin, data.stanza, data); end, priority); -end - -function api:require(lib) - local f, n = pluginloader.load_code(self.name, lib..".lib.lua"); - if not f then - f, n = pluginloader.load_code(lib, lib..".lib.lua"); - end - if not f then error("Failed to load plugin library '"..lib.."', error: "..n); end -- FIXME better error message - setfenv(f, self.environment); - return f(); -end - -function api:get_option(name, default_value) - local value = config.get(self.host, self.name, name); - if value == nil then - value = config.get(self.host, "core", name); - if value == nil then - value = default_value; - end - end - return value; -end - -function api:get_option_string(name, default_value) - local value = self:get_option(name, default_value); - if type(value) == "table" then - if #value > 1 then - self:log("error", "Config option '%s' does not take a list, using just the first item", name); - end - value = value[1]; - end - if value == nil then - return nil; - end - return tostring(value); -end - -function api:get_option_number(name, ...) - local value = self:get_option(name, ...); - if type(value) == "table" then - if #value > 1 then - self:log("error", "Config option '%s' does not take a list, using just the first item", name); - end - value = value[1]; - end - local ret = tonumber(value); - if value ~= nil and ret == nil then - self:log("error", "Config option '%s' not understood, expecting a number", name); - end - return ret; -end - -function api:get_option_boolean(name, ...) - local value = self:get_option(name, ...); - if type(value) == "table" then - if #value > 1 then - self:log("error", "Config option '%s' does not take a list, using just the first item", name); - end - value = value[1]; - end - if value == nil then - return nil; - end - local ret = value == true or value == "true" or value == 1 or nil; - if ret == nil then - ret = (value == false or value == "false" or value == 0); - if ret then - ret = false; - else - ret = nil; - end - end - if ret == nil then - self:log("error", "Config option '%s' not understood, expecting true/false", name); - end - return ret; -end - -function api:get_option_array(name, ...) - local value = self:get_option(name, ...); - - if value == nil then - return nil; - end - - if type(value) ~= "table" then - return array{ value }; -- Assume any non-list is a single-item list - end - - return array():append(value); -- Clone -end - -function api:get_option_set(name, ...) - local value = self:get_option_array(name, ...); - - if value == nil then - return nil; - end - - return set.new(value); -end - -local t_remove = _G.table.remove; -local module_items = multitable_new(); -function api:add_item(key, value) - self.items = self.items or {}; - self.items[key] = self.items[key] or {}; - t_insert(self.items[key], value); - self:fire_event("item-added/"..key, {source = self, item = value}); -end -function api:remove_item(key, value) - local t = self.items and self.items[key] or NULL; - for i = #t,1,-1 do - if t[i] == value then - t_remove(self.items[key], i); - self:fire_event("item-removed/"..key, {source = self, item = value}); - return value; - end - end -end - -function api:get_host_items(key) - local result = {}; - for mod_name, module in pairs(modulemap[self.host]) do - module = module.module; - if module.items then - for _, item in ipairs(module.items[key] or NULL) do - t_insert(result, item); - end - end - end - for mod_name, module in pairs(modulemap["*"]) do - module = module.module; - if module.items then - for _, item in ipairs(module.items[key] or NULL) do - t_insert(result, item); - end - end - end - return result; -end - -function api:handle_items(type, added_cb, removed_cb, existing) - self:hook("item-added/"..type, added_cb); - self:hook("item-removed/"..type, removed_cb); - if existing ~= false then - for _, item in ipairs(self:get_host_items(type)) do - added_cb({ item = item }); - end - end -end - return _M; |