X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=core%2Fcomponentmanager.lua;h=6f5e28e608abc6dc35d104f8530fb4b59c910815;hb=154cae8558010dbb85963b04f1dc1cc901bc6d8c;hp=d7791c4bc072996bcd58675017220e0a24ab7e3a;hpb=10904eb0553bd5e6efadbd8ab04ed77c49aa03b9;p=prosody.git diff --git a/core/componentmanager.lua b/core/componentmanager.lua index d7791c4b..6f5e28e6 100644 --- a/core/componentmanager.lua +++ b/core/componentmanager.lua @@ -1,56 +1,144 @@ --- Prosody IM v0.1 --- Copyright (C) 2008 Matthew Wild --- Copyright (C) 2008 Waqas Hussain +-- Prosody IM +-- 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 prosody = prosody; +local log = require "util.logger".init("componentmanager"); +local configmanager = require "core.configmanager"; +local modulemanager = require "core.modulemanager"; +local jid_split = require "util.jid".split; +local fire_event = require "core.eventmanager".fire_event; +local events_new = require "util.events".new; +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 = {}; + +module "componentmanager" + +local function default_component_handler(origin, stanza) + log("warn", "Stanza being handled by default component, bouncing error"); + if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then + origin.send(st.error_reply(stanza, "wait", "service-unavailable", "Component unavailable")); + end +end + +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] = create_component(host); + hosts[host].connected = false; + 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 + fire_event("component-activated", host, host_config); + log("debug", "Activated %s component: %s", host_config.core.component_module, host); + end + end + end +end + +prosody.events.add_handler("server-starting", load_enabled_components); + +function handle_stanza(origin, stanza) + local node, host = jid_split(stanza.attr.to); + local component = nil; + if host then + if node then component = components[node.."@"..host]; end -- hack to allow hooking node@server + if not component then component = components[host]; end + 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: "..tostring(stanza)); + end +end + +function create_component(host, component, events) + -- TODO check for host well-formedness + local ssl_ctx; + if host then + -- We need to find SSL context to use... + -- Discussion in prosody@ concluded that + -- 1 level back is usually enough by default + local base_host = host:gsub("^[^%.]+%.", ""); + if hosts[base_host] then + ssl_ctx = hosts[base_host].ssl_ctx; + end + end + return { type = "component", host = host, connected = true, s2sout = {}, + ssl_ctx = ssl_ctx, events = events or events_new() }; +end + +function register_component(host, component, session) + if not hosts[host] or (hosts[host].type == 'component' and not hosts[host].connected) then + local old_events = hosts[host] and hosts[host].events; + + components[host] = component; + hosts[host] = session or create_component(host, component, old_events); + + -- Add events object if not already one + if not hosts[host].events then + hosts[host].events = old_events or events_new(); + end + + -- 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 + modulemanager.load(host, "dialback"); + modulemanager.load(host, "tls"); + 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 + +function get_children(host) + return disco_items:get(host) or NULL; +end - - -local log = require "util.logger".init("componentmanager") -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 = {} }; - log("debug", "component added: "..host); - return hosts[host]; - else - log("error", "Attempt to set component for existing host: "..host); - end -end - -return _M; +return _M;