-
+-- Prosody IM v0.2
+-- Copyright (C) 2008 Matthew Wild
+-- Copyright (C) 2008 Waqas Hussain
+--
+-- This program is free software; you can redistribute it and/or
+-- modify it under the terms of the GNU General Public License
+-- as published by the Free Software Foundation; either version 2
+-- of the License, or (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with this program; if not, write to the Free Software
+-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+--
+
+
+
+local plugin_dir = CFG_PLUGINDIR or "./plugins/";
local logger = require "util.logger";
-local log = logger.init("modulemanager")
+local log = logger.init("modulemanager");
+local addDiscoInfoHandler = require "core.discomanager".addDiscoInfoHandler;
+local eventmanager = require "core.eventmanager";
+local config = require "core.configmanager";
+local multitable_new = require "util.multitable".new;
+
local loadfile, pcall = loadfile, pcall;
local setmetatable, setfenv, getfenv = setmetatable, setfenv, getfenv;
local tostring, print = tostring, print;
+-- We need this to let modules access the real global namespace
local _G = _G;
-local debug = debug;
module "modulemanager"
local api = {}; -- Module API container
-local modulemap = {};
+local modulemap = { ["*"] = {} };
+local stanza_handlers = multitable_new();
local handler_info = {};
-local stanza_handlers = {};
local modulehelpers = setmetatable({}, { __index = _G });
+-- Load modules when a host is activated
+function load_modules_for_host(host)
+ -- Load modules from global section
+ local modules_enabled = config.get("*", "core", "modules_enabled");
+ local modules_disabled = config.get(host, "core", "modules_disabled");
+ local disabled_set = {};
+ if modules_enabled then
+ if modules_disabled then
+ for _, module in pairs(modules_disabled) do
+ disabled_set[module] = true;
+ end
+ end
+ for _, module in pairs(modules_enabled) do
+ if not disabled_set[module] then
+ load(host, module);
+ end
+ end
+ end
+
+ -- Load modules from just this host
+ local modules_enabled = config.get(host, "core", "modules_enabled");
+ if modules_enabled then
+ for _, module in pairs(modules_enabled) do
+ load(host, module);
+ end
+ end
+end
+eventmanager.add_event_hook("host-activated", load_modules_for_host);
+--
function load(host, module_name, config)
if not (host and module_name) then
return nil, "insufficient-parameters";
end
- local mod, err = loadfile("plugins/mod_"..module_name..".lua");
- if not mod then
- log("error", "Unable to load module '%s': %s", module_name or "nil", err or "nil");
- return nil, err;
- end
if not modulemap[host] then
modulemap[host] = {};
- stanza_handlers[host] = {};
elseif 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
+ return nil, "global-module-already-loaded";
end
+
+ local mod, err = loadfile(plugin_dir.."mod_"..module_name..".lua");
+ 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 });
return nil, ret;
end
- modulemap[host][module_name] = mod;
+ -- Use modified host, if the module set one
+ modulemap[api_instance.host][module_name] = mod;
return true;
end
function handle_stanza(host, origin, stanza)
local name, xmlns, origin_type = stanza.name, stanza.attr.xmlns, origin.type;
-
- local handlers = stanza_handlers[host];
- if not handlers then
- log("warn", "No handlers for %s", host);
- return false;
- end
-
- if name == "iq" and xmlns == "jabber:client" and handlers[origin_type] then
- local child = stanza.tags[1];
- if child then
- local xmlns = child.attr.xmlns or xmlns;
+ if name == "iq" and xmlns == "jabber:client" then
+ if stanza.attr.type == "get" or stanza.attr.type == "set" then
+ xmlns = stanza.tags[1].attr.xmlns;
log("debug", "Stanza of type %s from %s has xmlns: %s", name, origin_type, xmlns);
- local handler = handlers[origin_type][name] and handlers[origin_type][name][xmlns];
- if handler then
- log("debug", "Passing stanza to mod_%s", handler_info[handler].name);
- return handler(origin, stanza) or true;
- end
- end
- elseif handlers[origin_type] then
- local handler = handlers[origin_type][name];
- if handler then
- handler = handler[xmlns];
- if handler then
- log("debug", "Passing stanza to mod_%s", handler_info[handler].name);
- return handler(origin, stanza) or true;
- end
+ else
+ log("debug", "Discarding %s from %s of type: %s", name, origin_type, stanza.attr.type);
+ return true;
end
end
- log("debug", "Stanza unhandled by any modules, xmlns: %s", stanza.attr.xmlns);
- return false; -- we didn't handle it
+ local handlers = stanza_handlers:get(host, origin_type, name, xmlns);
+ if handlers then
+ log("debug", "Passing stanza to mod_%s", handler_info[handlers[1]].name);
+ (handlers[1])(origin, stanza);
+ return true;
+ else
+ log("debug", "Stanza unhandled by any modules, xmlns: %s", stanza.attr.xmlns); -- we didn't handle it
+ end
end
----- API functions exposed to modules -----------
return self.host;
end
-
-local function _add_iq_handler(module, origin_type, xmlns, handler)
- local handlers = stanza_handlers[module.host];
- handlers[origin_type] = handlers[origin_type] or {};
- handlers[origin_type].iq = handlers[origin_type].iq or {};
- if not handlers[origin_type].iq[xmlns] then
- handlers[origin_type].iq[xmlns]= handler;
+local function _add_handler(module, origin_type, tag, xmlns, handler)
+ local handlers = stanza_handlers:get(module.host, origin_type, tag, xmlns);
+ local msg = (tag == "iq") and "namespace" or "payload namespace";
+ if not handlers then
+ stanza_handlers:add(module.host, origin_type, tag, xmlns, handler);
handler_info[handler] = module;
- module:log("debug", "I now handle tag 'iq' [%s] with payload namespace '%s'", origin_type, xmlns);
+ module:log("debug", "I now handle tag '%s' [%s] with %s '%s'", tag, origin_type, msg, xmlns);
else
- module:log("warn", "I wanted to handle tag 'iq' [%s] with payload namespace '%s' but mod_%s already handles that", origin_type, xmlns, handler_info[handlers[origin_type].iq[xmlns]].name);
+ module:log("warn", "I wanted to handle tag '%s' [%s] with %s '%s' but mod_%s already handles that", tag, origin_type, msg, xmlns, handler_info[handlers[1]].module.name);
end
end
-function api:add_iq_handler(origin_type, xmlns, handler)
- if not (origin_type and handler and xmlns) then return false; end
+function api:add_handler(origin_type, tag, xmlns, handler)
+ if not (origin_type and tag and xmlns and handler) then return false; end
if type(origin_type) == "table" then
for _, origin_type in ipairs(origin_type) do
- _add_iq_handler(self, origin_type, xmlns, handler);
- end
- return;
- end
- _add_iq_handler(self, origin_type, xmlns, handler);
-end
-
-
-do
- local event_handlers = {};
-
- function api:add_event_hook(name, handler)
- if not event_handlers[name] then
- event_handlers[name] = {};
- end
- t_insert(event_handlers[name] , handler);
- self:log("debug", "Subscribed to %s", name);
- end
-
- function fire_event(name, ...)
- local event_handlers = event_handlers[name];
- if event_handlers then
- for name, handler in ipairs(event_handlers) do
- handler(...);
- end
+ _add_handler(self, origin_type, tag, xmlns, handler);
end
+ else
+ _add_handler(self, origin_type, tag, xmlns, handler);
end
end
-
-
-local function _add_handler(module, origin_type, tag, xmlns, handler)
- local handlers = stanza_handlers[module.host];
- handlers[origin_type] = handlers[origin_type] or {};
- if not handlers[origin_type][tag] then
- handlers[origin_type][tag] = handlers[origin_type][tag] or {};
- handlers[origin_type][tag][xmlns]= handler;
- handler_info[handler] = module;
- module:log("debug", "I now handle tag '%s' [%s] with xmlns '%s'", tag, origin_type, xmlns);
- elseif handler_info[handlers[origin_type][tag]] then
- log("warning", "I wanted to handle tag '%s' [%s] but mod_%s already handles that", tag, origin_type, handler_info[handlers[origin_type][tag]].module.name);
- end
+function api:add_iq_handler(origin_type, xmlns, handler)
+ self:add_handler(origin_type, "iq", xmlns, handler);
end
-function api:add_handler(origin_type, tag, xmlns, handler)
- if not (origin_type and tag and xmlns and handler) then return false; end
- if type(origin_type) == "table" then
- for _, origin_type in ipairs(origin_type) do
- _add_handler(self, origin_type, tag, xmlns, handler);
+function api:add_feature(xmlns)
+ addDiscoInfoHandler(self.host, function(reply, to, from, node)
+ if #node == 0 then
+ reply:tag("feature", {var = xmlns}):up();
+ return true;
end
- return;
- end
- _add_handler(self, origin_type, tag, xmlns, handler);
+ end);
end
+function api:add_event_hook (...) return eventmanager.add_event_hook(...); end
+
--------------------------------------------------------------------
return _M;
projects / prosody.git / blobdiff