plugins/mod_legacyauth.lua

   1 -- Prosody IM v0.4
   2 -- Copyright (C) 2008-2009 Matthew Wild
   3 -- Copyright (C) 2008-2009 Waqas Hussain
   4 --
   5 -- This project is MIT/X11 licensed. Please see the
   6 -- COPYING file in the source package for more information.
   7 --
   8
   9
  10
  11 local st = require "util.stanza";
  12 local t_concat = table.concat;
  13
  14 local config = require "core.configmanager";
  15 local secure_auth_only = config.get(module:get_host(), "core", "require_encryption");
  16
  17 local sessionmanager = require "core.sessionmanager";
  18 local usermanager = require "core.usermanager";
  19
  20 module:add_feature("jabber:iq:auth");
  21 module:add_event_hook("stream-features", function (session, features)
  22         if secure_auth_only and not session.secure then
  23                 -- Sorry, not offering to insecure streams!
  24                 return;
  25         elseif not session.username then
  26                 features:tag("auth", {xmlns='http://jabber.org/features/iq-auth'}):up();
  27         end
  28 end);
  29
  30 module:add_iq_handler("c2s_unauthed", "jabber:iq:auth",
  31                 function (session, stanza)
  32                         if secure_auth_only and not session.secure then
  33                                 session.send(st.error_reply(stanza, "modify", "not-acceptable", "Encryption (SSL or TLS) is required to connect to this server"));
  34                                 return true;
  35                         end
  36
  37                         local username = stanza.tags[1]:child_with_name("username");
  38                         local password = stanza.tags[1]:child_with_name("password");
  39                         local resource = stanza.tags[1]:child_with_name("resource");
  40                         if not (username and password and resource) then
  41                                 local reply = st.reply(stanza);
  42                                 session.send(reply:query("jabber:iq:auth")
  43                                         :tag("username"):up()
  44                                         :tag("password"):up()
  45                                         :tag("resource"):up());
  46                                 return true;
  47                         else
  48                                 username, password, resource = t_concat(username), t_concat(password), t_concat(resource);
  49                                 local reply = st.reply(stanza);
  50                                 require "core.usermanager"
  51                                 if usermanager.validate_credentials(session.host, username, password) then
  52                                         -- Authentication successful!
  53                                         local success, err = sessionmanager.make_authenticated(session, username);
  54                                         if success then
  55                                                 local err_type, err_msg;
  56                                                 success, err_type, err, err_msg = sessionmanager.bind_resource(session, resource);
  57                                                 if not success then
  58                                                         session.send(st.error_reply(stanza, err_type, err, err_msg));
  59                                                         return true;
  60                                                 end
  61                                         end
  62                                         session.send(st.reply(stanza));
  63                                         return true;
  64                                 else
  65                                         local reply = st.reply(stanza);
  66                                         reply.attr.type = "error";
  67                                         reply:tag("error", { code = "401", type = "auth" })
  68                                                 :tag("not-authorized", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" });
  69                                         session.send(reply);
  70                                         return true;
  71                                 end
  72                         end
  73
  74                 end);