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-- Prosody IM
-- Copyright (C) 2008-2009 Matthew Wild
-- Copyright (C) 2008-2009 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
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";
module:add_feature("jabber:iq:auth");
module:add_event_hook("stream-features", function (session, features)
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");
if not (username and password and resource) then
local reply = st.reply(stanza);
session.send(reply:query("jabber:iq:auth")
:tag("username"):up()
:tag("password"):up()
:tag("resource"):up());
return true;
else
username, password, resource = t_concat(username), t_concat(password), t_concat(resource);
local reply = st.reply(stanza);
if usermanager.validate_credentials(session.host, username, password) then
-- Authentication successful!
local success, err = sessionmanager.make_authenticated(session, username);
if success then
local err_type, err_msg;
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));
return true;
end
end
session.send(st.reply(stanza));
return true;
else
local reply = st.reply(stanza);
reply.attr.type = "error";
reply:tag("error", { code = "401", type = "auth" })
:tag("not-authorized", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" });
session.send(reply);
return true;
end
end
end);
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