--- Prosody IM v0.4
+-- Prosody IM
-- Copyright (C) 2008-2009 Matthew Wild
-- Copyright (C) 2008-2009 Waqas Hussain
--
local st = require "util.stanza";
local t_concat = table.concat;
+local config = require "core.configmanager";
+local secure_auth_only = config.get(module:get_host(), "core", "require_encryption");
+
+local sessionmanager = require "core.sessionmanager";
+local usermanager = require "core.usermanager";
+local nodeprep = require "util.encodings".stringprep.nodeprep;
+local resourceprep = require "util.encodings".stringprep.resourceprep;
+
module:add_feature("jabber:iq:auth");
module:add_event_hook("stream-features", function (session, features)
- if not session.username then features:tag("auth", {xmlns='http://jabber.org/features/iq-auth'}):up(); end
+ if secure_auth_only and not session.secure then
+ -- Sorry, not offering to insecure streams!
+ return;
+ elseif not session.username then
+ features:tag("auth", {xmlns='http://jabber.org/features/iq-auth'}):up();
+ end
end);
module:add_iq_handler("c2s_unauthed", "jabber:iq:auth",
function (session, stanza)
+ if secure_auth_only and not session.secure then
+ session.send(st.error_reply(stanza, "modify", "not-acceptable", "Encryption (SSL or TLS) is required to connect to this server"));
+ return true;
+ end
+
local username = stanza.tags[1]:child_with_name("username");
local password = stanza.tags[1]:child_with_name("password");
local resource = stanza.tags[1]:child_with_name("resource");
return true;
else
username, password, resource = t_concat(username), t_concat(password), t_concat(resource);
+ username = nodeprep(username);
+ resource = resourceprep(resource)
local reply = st.reply(stanza);
require "core.usermanager"
- if usermanager.validate_credentials(session.host, username, password) then
+ if username and resource and usermanager.validate_credentials(session.host, username, password) then
-- Authentication successful!
local success, err = sessionmanager.make_authenticated(session, username);
if success then
success, err_type, err, err_msg = sessionmanager.bind_resource(session, resource);
if not success then
session.send(st.error_reply(stanza, err_type, err, err_msg));
+ session.username, session.type = nil, "c2s_unauthed"; -- FIXME should this be placed in sessionmanager?
+ return true;
+ elseif resource ~= session.resource then -- server changed resource, not supported by legacy auth
+ session.send(st.error_reply(stanza, "cancel", "conflict", "The requested resource could not be assigned to this session."));
+ session:close(); -- FIXME undo resource bind and auth instead of closing the session?
return true;
end
end