--- Prosody IM v0.1
--- Copyright (C) 2008 Matthew Wild
--- Copyright (C) 2008 Waqas Hussain
+-- Prosody IM v0.4
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 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.
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
--
-\r
-\r
-local log = require "util.logger".init("componentmanager")\r
-local jid_split = require "util.jid".split;\r
-local hosts = hosts;\r
-\r
-local components = {};\r
-\r
-module "componentmanager"\r
-\r
-function handle_stanza(origin, stanza)\r
- local node, host = jid_split(stanza.attr.to);\r
- local component = components[host];\r
- if not component then component = components[node.."@"..host]; end -- hack to allow hooking node@server\r
- if not component then component = components[stanza.attr.to]; end -- hack to allow hooking node@server/resource and server/resource\r
- if component then\r
- log("debug", "stanza being handled by component: "..host);\r
- component(origin, stanza, hosts[host]);\r
- else\r
- log("error", "Component manager recieved a stanza for a non-existing component: " .. stanza.attr.to);\r
- end\r
-end\r
-\r
-function register_component(host, component)\r
- if not hosts[host] then\r
- -- TODO check for host well-formedness\r
- components[host] = component;\r
- hosts[host] = {type = "component", host = host, connected = true, s2sout = {} };\r
- log("debug", "component added: "..host);\r
- return hosts[host];\r
- else\r
- log("error", "Attempt to set component for existing host: "..host);\r
- end\r
-end\r
-\r
-return _M;\r
+
+
+local log = require "util.logger".init("componentmanager");
+local configmanager = require "core.configmanager";
+local eventmanager = require "core.eventmanager";
+local modulemanager = require "core.modulemanager";
+local core_route_stanza = core_route_stanza;
+local jid_split = require "util.jid".split;
+local st = require "util.stanza";
+local hosts = hosts;
+
+local pairs, type, tostring = pairs, type, tostring;
+
+local components = {};
+
+local disco_items = require "util.multitable".new();
+local NULL = {};
+require "core.discomanager".addDiscoItemsHandler("*host", function(reply, to, from, node)
+ if #node == 0 and hosts[to] then
+ for jid in pairs(disco_items:get(to) or NULL) do
+ reply:tag("item", {jid = jid}):up();
+ end
+ return true;
+ end
+end);
+
+require "core.eventmanager".add_event_hook("server-starting", function () core_route_stanza = _G.core_route_stanza; end);
+
+module "componentmanager"
+
+local function default_component_handler(origin, stanza)
+ log("warn", "Stanza being handled by default component, bouncing error");
+ if stanza.attr.type ~= "error" then
+ core_route_stanza(nil, st.error_reply(stanza, "wait", "service-unavailable", "Component unavailable"));
+ end
+end
+
+local components_loaded_once;
+function load_enabled_components(config)
+ local defined_hosts = config or configmanager.getconfig();
+
+ for host, host_config in pairs(defined_hosts) do
+ if host ~= "*" and ((host_config.core.enabled == nil or host_config.core.enabled) and type(host_config.core.component_module) == "string") then
+ hosts[host] = { type = "component", host = host, connected = false, s2sout = {} };
+ components[host] = default_component_handler;
+ local ok, err = modulemanager.load(host, host_config.core.component_module);
+ if not ok then
+ log("error", "Error loading %s component %s: %s", tostring(host_config.core.component_module), tostring(host), tostring(err));
+ else
+ log("debug", "Activated %s component: %s", host_config.core.component_module, host);
+ end
+ end
+ end
+end
+
+eventmanager.add_event_hook("server-starting", load_enabled_components);
+
+function handle_stanza(origin, stanza)
+ local node, host = jid_split(stanza.attr.to);
+ local component = nil;
+ if not component then component = components[stanza.attr.to]; end -- hack to allow hooking node@server/resource and server/resource
+ if not component then component = components[node.."@"..host]; end -- hack to allow hooking node@server
+ if not component then component = components[host]; end
+ if component then
+ log("debug", "%s stanza being handled by component: %s", stanza.name, host);
+ component(origin, stanza, hosts[host]);
+ else
+ log("error", "Component manager recieved a stanza for a non-existing component: " .. stanza.attr.to);
+ end
+end
+
+function create_component(host, component)
+ -- TODO check for host well-formedness
+ return { type = "component", host = host, connected = true, s2sout = {} };
+end
+
+function register_component(host, component, session)
+ if not hosts[host] or (hosts[host].type == 'component' and not hosts[host].connected) then
+ components[host] = component;
+ hosts[host] = session or create_component(host, component);
+ -- add to disco_items
+ if not(host:find("@", 1, true) or host:find("/", 1, true)) and host:find(".", 1, true) then
+ disco_items:set(host:sub(host:find(".", 1, true)+1), host, true);
+ end
+ -- FIXME only load for a.b.c if b.c has dialback, and/or check in config
+ modulemanager.load(host, "dialback");
+ log("debug", "component added: "..host);
+ return session or hosts[host];
+ else
+ log("error", "Attempt to set component for existing host: "..host);
+ end
+end
+
+function deregister_component(host)
+ if components[host] then
+ modulemanager.unload(host, "dialback");
+ hosts[host].connected = nil;
+ local host_config = configmanager.getconfig()[host];
+ if host_config and ((host_config.core.enabled == nil or host_config.core.enabled) and type(host_config.core.component_module) == "string") then
+ -- Set default handler
+ components[host] = default_component_handler;
+ else
+ -- Component not in config, or disabled, remove
+ hosts[host] = nil;
+ components[host] = nil;
+ end
+ -- remove from disco_items
+ if not(host:find("@", 1, true) or host:find("/", 1, true)) and host:find(".", 1, true) then
+ disco_items:remove(host:sub(host:find(".", 1, true)+1), host);
+ end
+ log("debug", "component removed: "..host);
+ return true;
+ else
+ log("error", "Attempt to remove component for non-existing host: "..host);
+ end
+end
+
+function set_component_handler(host, handler)
+ components[host] = handler;
+end
+
+return _M;
projects / prosody.git / blobdiff