2 -- Copyright (C) 2008-2010 Matthew Wild
3 -- Copyright (C) 2008-2010 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
9 if module:get_host_type() ~= "component" then
10 error("Don't load mod_component manually, it should be for a component, please see http://prosody.im/doc/components", 0);
13 local hosts = _G.hosts;
15 local t_concat = table.concat;
17 local config = require "core.configmanager";
18 local cm_register_component = require "core.componentmanager".register_component;
19 local cm_deregister_component = require "core.componentmanager".deregister_component;
20 local sha1 = require "util.hashes".sha1;
21 local st = require "util.stanza";
23 local log = module._log;
25 local main_session, send;
27 local function on_destroy(session, err)
28 if main_session == session then
31 session.on_destroy = nil;
32 hosts[session.host].connected = nil;
36 local function handle_stanza(event)
37 local stanza = event.stanza;
39 stanza.attr.xmlns = nil;
42 log("warn", "Stanza being handled by default component; bouncing error for: %s", stanza:top_tag());
43 if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then
44 event.origin.send(st.error_reply(stanza, "wait", "service-unavailable", "Component unavailable"));
49 module:hook("iq/bare", handle_stanza);
50 module:hook("message/bare", handle_stanza);
51 module:hook("presence/bare", handle_stanza);
52 module:hook("iq/full", handle_stanza);
53 module:hook("message/full", handle_stanza);
54 module:hook("presence/full", handle_stanza);
55 module:hook("iq/host", handle_stanza);
56 module:hook("message/host", handle_stanza);
57 module:hook("presence/host", handle_stanza);
59 cm_register_component(module.host, function() end);
61 --- Handle authentication attempts by components
62 function handle_component_auth(event)
63 local session, stanza = event.origin, event.stanza;
65 if session.type ~= "component" then return; end
66 if main_session == session then return; end
68 log("info", "Handling component auth");
69 if (not session.host) or #stanza.tags > 0 then
70 (session.log or log)("warn", "Component handshake invalid");
71 session:close("not-authorized");
75 local secret = config.get(session.host, "core", "component_secret");
77 (session.log or log)("warn", "Component attempted to identify as %s, but component_secret is not set", session.host);
78 session:close("not-authorized");
82 local supplied_token = t_concat(stanza);
83 local calculated_token = sha1(session.streamid..secret, true);
84 if supplied_token:lower() ~= calculated_token:lower() then
85 log("info", "Component for %s authentication failed", session.host);
86 session:close{ condition = "not-authorized", text = "Given token does not match calculated token" };
92 log("info", "Component authenticated: %s", session.host);
94 session.component_validate_from = module:get_option_boolean("validate_from_addresses") ~= false;
96 -- If component not already created for this host, create one now
97 if not main_session then
99 main_session = session;
100 session.on_destroy = on_destroy;
101 hosts[session.host].connected = true;
102 log("info", "Component successfully registered");
104 log("error", "Multiple components bound to the same address, first one wins (TODO: Implement stanza distribution)");
105 session:close{ condition = "conflict", text = "Component already connected" };
109 -- Signal successful authentication
110 session.send(st.stanza("handshake"));
114 module:hook("stanza/jabber:component:accept:handshake", handle_component_auth);