2 -- Copyright (C) 2008-2009 Matthew Wild
3 -- Copyright (C) 2008-2009 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
12 local log = require "util.logger".init("componentmanager");
13 local configmanager = require "core.configmanager";
14 local eventmanager = require "core.eventmanager";
15 local modulemanager = require "core.modulemanager";
16 local jid_split = require "util.jid".split;
19 local pairs, type, tostring = pairs, type, tostring;
21 local components = {};
23 local disco_items = require "util.multitable".new();
25 require "core.discomanager".addDiscoItemsHandler("*host", function(reply, to, from, node)
26 if #node == 0 and hosts[to] then
27 for jid in pairs(disco_items:get(to) or NULL) do
28 reply:tag("item", {jid = jid}):up();
35 module "componentmanager"
37 function load_enabled_components(config)
38 local defined_hosts = config or configmanager.getconfig();
40 for host, host_config in pairs(defined_hosts) do
41 if host ~= "*" and ((host_config.core.enabled == nil or host_config.core.enabled) and type(host_config.core.component_module) == "string") then
42 hosts[host] = { type = "component", host = host, connected = false, s2sout = {} };
43 local ok, err = modulemanager.load(host, host_config.core.component_module);
45 log("error", "Error loading %s component %s: %s", tostring(host_config.core.component_module), tostring(host), tostring(err));
47 log("info", "Activated %s component: %s", host_config.core.component_module, host);
53 eventmanager.add_event_hook("server-starting", load_enabled_components);
55 function handle_stanza(origin, stanza)
56 local node, host = jid_split(stanza.attr.to);
57 local component = nil;
58 if not component then component = components[stanza.attr.to]; end -- hack to allow hooking node@server/resource and server/resource
59 if not component then component = components[node.."@"..host]; end -- hack to allow hooking node@server
60 if not component then component = components[host]; end
62 log("debug", "stanza being handled by component: "..host);
63 component(origin, stanza, hosts[host]);
65 log("error", "Component manager recieved a stanza for a non-existing component: " .. stanza.attr.to);
69 function create_component(host, component)
70 -- TODO check for host well-formedness
71 session = session or { type = "component", host = host, connected = true, s2sout = {}, send = component };
75 function register_component(host, component, session)
76 if not hosts[host] or (hosts[host].type == 'component' and not hosts[host].connected) then
77 components[host] = component;
78 hosts[host] = session or create_component(host, component);
80 if not(host:find("@", 1, true) or host:find("/", 1, true)) and host:find(".", 1, true) then
81 disco_items:set(host:sub(host:find(".", 1, true)+1), host, true);
83 -- FIXME only load for a.b.c if b.c has dialback, and/or check in config
84 modulemanager.load(host, "dialback");
85 log("debug", "component added: "..host);
86 return session or hosts[host];
88 log("error", "Attempt to set component for existing host: "..host);
92 function deregister_component(host)
93 if components[host] then
94 modulemanager.unload(host, "dialback");
95 components[host] = nil;
97 -- remove from disco_items
98 if not(host:find("@", 1, true) or host:find("/", 1, true)) and host:find(".", 1, true) then
99 disco_items:remove(host:sub(host:find(".", 1, true)+1), host);
101 log("debug", "component removed: "..host);
104 log("error", "Attempt to remove component for non-existing host: "..host);