X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=core%2Fcomponentmanager.lua;h=d76b78495ad092010e034d75002b6fb50bd3e62d;hb=34215744d79b2fcf146b69a59007d104085dff4a;hp=a63cfd7abee186cb8513c9ccd93432e9efe89735;hpb=8aba1c77f0714f2460cc21660bb494fc217e042b;p=prosody.git diff --git a/core/componentmanager.lua b/core/componentmanager.lua index a63cfd7a..d76b7849 100644 --- a/core/componentmanager.lua +++ b/core/componentmanager.lua @@ -1,59 +1,131 @@ --- Prosody IM v0.2 --- 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. -- - - + + local log = require "util.logger".init("componentmanager"); -local module_load = require "core.modulemanager".load; -local jid_split = require "util.jid".split; -local hosts = hosts; - -local components = {}; - -module "componentmanager" - -function handle_stanza(origin, stanza) - local node, host = jid_split(stanza.attr.to); - local component = components[host]; - if not component then component = components[node.."@"..host]; end -- hack to allow hooking node@server - if not component then component = components[stanza.attr.to]; end -- hack to allow hooking node@server/resource and server/resource - if component then - log("debug", "stanza being handled by component: "..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 register_component(host, component) - if not hosts[host] then - -- TODO check for host well-formedness - components[host] = component; - hosts[host] = { type = "component", host = host, connected = true, s2sout = {} }; +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 - module_load(host, "dialback"); - log("debug", "component added: "..host); - return hosts[host]; - else - log("error", "Attempt to set component for existing host: "..host); - end -end - -return _M; + 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;