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.
11 local st = require "util.stanza";
12 local t_concat = table.concat;
14 local secure_auth_only = module:get_option("c2s_require_encryption")
15 or module:get_option("require_encryption")
16 or not(module:get_option("allow_unencrypted_plain_auth"));
18 local sessionmanager = require "core.sessionmanager";
19 local usermanager = require "core.usermanager";
20 local nodeprep = require "util.encodings".stringprep.nodeprep;
21 local resourceprep = require "util.encodings".stringprep.resourceprep;
23 module:add_feature("jabber:iq:auth");
24 module:hook("stream-features", function(event)
25 local origin, features = event.origin, event.features;
26 if secure_auth_only and not origin.secure then
27 -- Sorry, not offering to insecure streams!
29 elseif not origin.username then
30 features:tag("auth", {xmlns='http://jabber.org/features/iq-auth'}):up();
34 module:hook("stanza/iq/jabber:iq:auth:query", function(event)
35 local session, stanza = event.origin, event.stanza;
37 if session.type ~= "c2s_unauthed" then
38 (session.sends2s or session.send)(st.error_reply(stanza, "cancel", "service-unavailable", "Legacy authentication is only allowed for unauthenticated client connections."));
42 if secure_auth_only and not session.secure then
43 session.send(st.error_reply(stanza, "modify", "not-acceptable", "Encryption (SSL or TLS) is required to connect to this server"));
47 local username = stanza.tags[1]:child_with_name("username");
48 local password = stanza.tags[1]:child_with_name("password");
49 local resource = stanza.tags[1]:child_with_name("resource");
50 if not (username and password and resource) then
51 local reply = st.reply(stanza);
52 session.send(reply:query("jabber:iq:auth")
55 :tag("resource"):up());
57 username, password, resource = t_concat(username), t_concat(password), t_concat(resource);
58 username = nodeprep(username);
59 resource = resourceprep(resource)
60 if not (username and resource) then
61 session.send(st.error_reply(stanza, "modify", "bad-request"));
64 if usermanager.test_password(username, session.host, password) then
65 -- Authentication successful!
66 local success, err = sessionmanager.make_authenticated(session, username);
68 local err_type, err_msg;
69 success, err_type, err, err_msg = sessionmanager.bind_resource(session, resource);
71 session.send(st.error_reply(stanza, err_type, err, err_msg));
72 session.username, session.type = nil, "c2s_unauthed"; -- FIXME should this be placed in sessionmanager?
74 elseif resource ~= session.resource then -- server changed resource, not supported by legacy auth
75 session.send(st.error_reply(stanza, "cancel", "conflict", "The requested resource could not be assigned to this session."));
76 session:close(); -- FIXME undo resource bind and auth instead of closing the session?
80 session.send(st.reply(stanza));
82 session.send(st.error_reply(stanza, "auth", "not-authorized"));