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-rw-r--r--core/modulemanager.lua474
1 files changed, 174 insertions, 300 deletions
diff --git a/core/modulemanager.lua b/core/modulemanager.lua
index 0af9a271..2ad2fc17 100644
--- a/core/modulemanager.lua
+++ b/core/modulemanager.lua
@@ -1,33 +1,25 @@
-- 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 plugin_dir = CFG_PLUGINDIR or "./plugins/";
-
local logger = require "util.logger";
local log = logger.init("modulemanager");
local config = require "core.configmanager";
-local multitable_new = require "util.multitable".new;
-local st = require "util.stanza";
local pluginloader = require "util.pluginloader";
+local set = require "util.set";
+
+local new_multitable = require "util.multitable".new;
local hosts = hosts;
local prosody = prosody;
-local prosody_events = prosody.events;
-
-local loadfile, pcall, xpcall = loadfile, pcall, xpcall;
-local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv;
-local pairs, ipairs = pairs, ipairs;
-local t_insert, t_concat = table.insert, table.concat;
-local type = type;
-local next = next;
-local rawget = rawget;
-local error = error;
-local tostring, tonumber = tostring, tonumber;
+
+local pcall, xpcall = pcall, xpcall;
+local setmetatable, rawget = setmetatable, rawget;
+local ipairs, pairs, type, tostring, t_insert = ipairs, pairs, type, tostring, table.insert;
local debug_traceback = debug.traceback;
local unpack, select = unpack, select;
@@ -37,53 +29,44 @@ pcall = function(f, ...)
return xpcall(function() return f(unpack(params, 1, n)) end, function(e) return tostring(e).."\n"..debug_traceback(); end);
end
-local array, set = require "util.array", require "util.set";
-
-local autoload_modules = {"presence", "message", "iq", "offline"};
-local component_inheritable_modules = {"tls", "dialback", "iq"};
+local autoload_modules = {"presence", "message", "iq", "offline", "c2s", "s2s"};
+local component_inheritable_modules = {"tls", "dialback", "iq", "s2s"};
-- We need this to let modules access the real global namespace
local _G = _G;
module "modulemanager"
-api = {};
-local api = api; -- Module API container
+local api = _G.require "core.moduleapi"; -- Module API container
+-- [host] = { [module] = module_env }
local modulemap = { ["*"] = {} };
-local modulehelpers = setmetatable({}, { __index = _G });
-
-local hooks = multitable_new();
-
-local NULL = {};
-
-- Load modules when a host is activated
function load_modules_for_host(host)
- local component = config.get(host, "core", "component_module");
-
- local global_modules_enabled = config.get("*", "core", "modules_enabled");
- local global_modules_disabled = config.get("*", "core", "modules_disabled");
- local host_modules_enabled = config.get(host, "core", "modules_enabled");
- local host_modules_disabled = config.get(host, "core", "modules_disabled");
-
+ local component = config.get(host, "component_module");
+
+ local global_modules_enabled = config.get("*", "modules_enabled");
+ local global_modules_disabled = config.get("*", "modules_disabled");
+ local host_modules_enabled = config.get(host, "modules_enabled");
+ local host_modules_disabled = config.get(host, "modules_disabled");
+
if host_modules_enabled == global_modules_enabled then host_modules_enabled = nil; end
if host_modules_disabled == global_modules_disabled then host_modules_disabled = nil; end
-
- local host_modules = set.new(host_modules_enabled) - set.new(host_modules_disabled);
+
local global_modules = set.new(autoload_modules) + set.new(global_modules_enabled) - set.new(global_modules_disabled);
if component then
global_modules = set.intersection(set.new(component_inheritable_modules), global_modules);
end
- local modules = global_modules + host_modules;
-
+ local modules = (global_modules + set.new(host_modules_enabled)) - set.new(host_modules_disabled);
+
-- COMPAT w/ pre 0.8
if modules:contains("console") then
log("error", "The mod_console plugin has been renamed to mod_admin_telnet. Please update your config.");
modules:remove("console");
modules:add("admin_telnet");
end
-
+
if component then
load(host, component);
end
@@ -91,111 +74,134 @@ function load_modules_for_host(host)
load(host, module);
end
end
-prosody_events.add_handler("host-activated", load_modules_for_host);
---
+prosody.events.add_handler("host-activated", load_modules_for_host);
+prosody.events.add_handler("host-deactivated", function (host)
+ modulemap[host] = nil;
+end);
+
+--- Private helpers ---
+
+local function do_unload_module(host, name)
+ local mod = get_module(host, name);
+ if not mod then return nil, "module-not-loaded"; end
+
+ if module_has_method(mod, "unload") then
+ local ok, err = call_module_method(mod, "unload");
+ if (not ok) and err then
+ log("warn", "Non-fatal error unloading module '%s' on '%s': %s", name, host, err);
+ end
+ end
+
+ for object, event, handler in mod.module.event_handlers:iter(nil, nil, nil) do
+ object.remove_handler(event, handler);
+ end
+
+ if mod.module.items then -- remove items
+ local events = (host == "*" and prosody.events) or hosts[host].events;
+ for key,t in pairs(mod.module.items) do
+ for i = #t,1,-1 do
+ local value = t[i];
+ t[i] = nil;
+ events.fire_event("item-removed/"..key, {source = mod.module, item = value});
+ end
+ end
+ end
+ mod.module.loaded = false;
+ modulemap[host][name] = nil;
+ return true;
+end
-function load(host, module_name, config)
+local function do_load_module(host, module_name, state)
if not (host and module_name) then
return nil, "insufficient-parameters";
- elseif not hosts[host] then
+ elseif not hosts[host] and host ~= "*"then
return nil, "unknown-host";
end
-
+
if not modulemap[host] then
- modulemap[host] = {};
+ modulemap[host] = hosts[host].modules;
end
-
+
if modulemap[host][module_name] then
log("warn", "%s is already loaded for %s, so not loading again", module_name, host);
return nil, "module-already-loaded";
elseif modulemap["*"][module_name] then
+ local mod = modulemap["*"][module_name];
+ if module_has_method(mod, "add_host") then
+ local _log = logger.init(host..":"..module_name);
+ local host_module_api = setmetatable({
+ host = host, event_handlers = new_multitable(), items = {};
+ _log = _log, log = function (self, ...) return _log(...); end;
+ },{
+ __index = modulemap["*"][module_name].module;
+ });
+ local host_module = setmetatable({ module = host_module_api }, { __index = mod });
+ host_module_api.environment = host_module;
+ modulemap[host][module_name] = host_module;
+ local ok, result, module_err = call_module_method(mod, "add_host", host_module_api);
+ if not ok or result == false then
+ modulemap[host][module_name] = nil;
+ return nil, ok and module_err or result;
+ end
+ return host_module;
+ end
return nil, "global-module-already-loaded";
end
-
- local mod, err = pluginloader.load_code(module_name);
+
+
+ local _log = logger.init(host..":"..module_name);
+ local api_instance = setmetatable({ name = module_name, host = host,
+ _log = _log, log = function (self, ...) return _log(...); end, event_handlers = new_multitable(),
+ reloading = not not state, saved_state = state~=true and state or nil }
+ , { __index = api });
+
+ local pluginenv = setmetatable({ module = api_instance }, { __index = _G });
+ api_instance.environment = pluginenv;
+
+ local mod, err = pluginloader.load_code(module_name, nil, pluginenv);
if not mod then
log("error", "Unable to load module '%s': %s", module_name or "nil", err or "nil");
return nil, err;
end
- local _log = logger.init(host..":"..module_name);
- local api_instance = setmetatable({ name = module_name, host = host, config = config, _log = _log, log = function (self, ...) return _log(...); end }, { __index = api });
+ api_instance.path = err;
- local pluginenv = setmetatable({ module = api_instance }, { __index = _G });
- api_instance.environment = pluginenv;
-
- setfenv(mod, pluginenv);
- hosts[host].modules = modulemap[host];
modulemap[host][module_name] = pluginenv;
-
- local success, err = pcall(mod);
- if success then
+ local ok, err = pcall(mod);
+ if ok then
+ -- Call module's "load"
if module_has_method(pluginenv, "load") then
- success, err = call_module_method(pluginenv, "load");
- if not success then
+ ok, err = call_module_method(pluginenv, "load");
+ if not ok then
log("warn", "Error loading module '%s' on '%s': %s", module_name, host, err or "nil");
end
end
-
- -- Use modified host, if the module set one
- if api_instance.host == "*" and host ~= "*" then
+ api_instance.reloading, api_instance.saved_state = nil, nil;
+
+ if api_instance.host == "*" then
+ if not api_instance.global then -- COMPAT w/pre-0.9
+ if host ~= "*" then
+ log("warn", "mod_%s: Setting module.host = '*' deprecated, call module:set_global() instead", module_name);
+ end
+ api_instance:set_global();
+ end
modulemap[host][module_name] = nil;
- modulemap["*"][module_name] = pluginenv;
- api_instance:set_global();
- end
- else
- log("error", "Error initializing module '%s' on '%s': %s", module_name, host, err or "nil");
- end
- if success then
- (hosts[api_instance.host] or prosody).events.fire_event("module-loaded", { module = module_name, host = host });
- return true;
- else -- load failed, unloading
- unload(api_instance.host, module_name);
- return nil, err;
- end
-end
-
-function get_module(host, name)
- return modulemap[host] and modulemap[host][name];
-end
-
-function is_loaded(host, name)
- return modulemap[host] and modulemap[host][name] and true;
-end
-
-function unload(host, name, ...)
- local mod = get_module(host, name);
- if not mod then return nil, "module-not-loaded"; end
-
- if module_has_method(mod, "unload") then
- local ok, err = call_module_method(mod, "unload");
- if (not ok) and err then
- log("warn", "Non-fatal error unloading module '%s' on '%s': %s", name, host, err);
- end
- end
- -- unhook event handlers hooked by module:hook
- for event, handlers in pairs(hooks:get(host, name) or NULL) do
- for handler in pairs(handlers or NULL) do
- (hosts[host] or prosody).events.remove_handler(event, handler);
- end
- end
- hooks:remove(host, name);
- if mod.module.items then -- remove items
- for key,t in pairs(mod.module.items) do
- for i = #t,1,-1 do
- local value = t[i];
- t[i] = nil;
- hosts[host].events.fire_event("item-removed/"..key, {source = self, item = value});
+ modulemap[api_instance.host][module_name] = pluginenv;
+ if host ~= api_instance.host and module_has_method(pluginenv, "add_host") then
+ -- Now load the module again onto the host it was originally being loaded on
+ ok, err = do_load_module(host, module_name);
end
end
end
- modulemap[host][name] = nil;
- (hosts[host] or prosody).events.fire_event("module-unloaded", { module = name, host = host });
- return true;
+ if not ok then
+ modulemap[api_instance.host][module_name] = nil;
+ log("error", "Error initializing module '%s' on '%s': %s", module_name, host, err or "nil");
+ end
+ return ok and pluginenv, err;
end
-function reload(host, name, ...)
+local function do_reload_module(host, name)
local mod = get_module(host, name);
if not mod then return nil, "module-not-loaded"; end
@@ -206,14 +212,13 @@ function reload(host, name, ...)
end
local saved;
-
if module_has_method(mod, "save") then
local ok, ret, err = call_module_method(mod, "save");
if ok then
saved = ret;
else
- log("warn", "Error saving module '%s:%s' state: %s", host, module, ret);
- if not config.get(host, "core", "force_module_reload") then
+ log("warn", "Error saving module '%s:%s' state: %s", host, name, ret);
+ if not config.get(host, "force_module_reload") then
log("warn", "Aborting reload due to error, set force_module_reload to ignore this");
return nil, "save-state-failed";
else
@@ -222,8 +227,9 @@ function reload(host, name, ...)
end
end
- unload(host, name, ...);
- local ok, err = load(host, name, ...);
+ mod.module.reloading = true;
+ do_unload_module(host, name);
+ local ok, err = do_load_module(host, name, saved or true);
if ok then
mod = get_module(host, name);
if module_has_method(mod, "restore") then
@@ -232,214 +238,82 @@ function reload(host, name, ...)
log("warn", "Error restoring module '%s' from '%s': %s", name, host, err);
end
end
- return true;
end
- return ok, err;
+ return ok and mod, err;
end
-function module_has_method(module, method)
- return type(module.module[method]) == "function";
-end
+--- Public API ---
-function call_module_method(module, method, ...)
- if module_has_method(module, method) then
- local f = module.module[method];
- return pcall(f, ...);
- else
- return false, "no-such-method";
+-- Load a module and fire module-loaded event
+function load(host, name)
+ local mod, err = do_load_module(host, name);
+ if mod then
+ (hosts[mod.module.host] or prosody).events.fire_event("module-loaded", { module = name, host = mod.module.host });
end
+ return mod, err;
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: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_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;
+-- Unload a module and fire module-unloaded
+function unload(host, name)
+ local ok, err = do_unload_module(host, name);
+ if ok then
+ (hosts[host] or prosody).events.fire_event("module-unloaded", { module = name, host = host });
end
- return api.hook(self, "stanza/"..(xmlns and (xmlns..":") or "")..name, function (data) return handler(data.origin, data.stanza, data); end, priority);
+ return ok, err;
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");
+function reload(host, name)
+ local mod, err = do_reload_module(host, name);
+ if mod then
+ modulemap[host][name].module.reloading = true;
+ (hosts[host] or prosody).events.fire_event("module-reloaded", { module = name, host = host });
+ mod.module.reloading = nil;
+ elseif not is_loaded(host, name) then
+ (hosts[host] or prosody).events.fire_event("module-unloaded", { module = name, host = host });
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();
+ return mod, err;
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);
+function get_module(host, name)
+ return modulemap[host] and modulemap[host][name];
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);
+function get_items(key, host)
+ local result = {};
+ local modules = modulemap[host];
+ if not key or not host or not modules then return nil; end
+
+ for _, module in pairs(modules) do
+ local mod = module.module;
+ if mod.items and mod.items[key] then
+ for _, value in ipairs(mod.items[key]) do
+ t_insert(result, value);
+ end
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;
+ return result;
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
+function get_modules(host)
+ return modulemap[host];
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);
+function is_loaded(host, name)
+ return modulemap[host] and modulemap[host][name] and true;
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
+function module_has_method(module, method)
+ return type(rawget(module.module, method)) == "function";
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
+function call_module_method(module, method, ...)
+ local f = rawget(module.module, method);
+ if type(f) == "function" then
+ return pcall(f, ...);
+ else
+ return false, "no-such-method";
end
- return result;
end
return _M;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-24 21:15:05 +0000