plugins/mod_legacyauth.lua

   1
   2 local st = require "util.stanza";
   3 local send = require "core.sessionmanager".send_to_session;
   4 local t_concat = table.concat;
   5
   6 add_iq_handler("c2s_unauthed", "jabber:iq:auth",
   7                 function (session, stanza)
   8                         local username = stanza.tags[1]:child_with_name("username");
   9                         local password = stanza.tags[1]:child_with_name("password");
  10                         local resource = stanza.tags[1]:child_with_name("resource");
  11                         if not (username and password and resource) then
  12                                 local reply = st.reply(stanza);
  13                                 send(session, reply:query("jabber:iq:auth")
  14                                         :tag("username"):up()
  15                                         :tag("password"):up()
  16                                         :tag("resource"):up());
  17                                 return true;
  18                         else
  19                                 username, password, resource = t_concat(username), t_concat(password), t_concat(resource);
  20                                 local reply = st.reply(stanza);
  21                                 require "core.usermanager"
  22                                 if usermanager.validate_credentials(session.host, username, password) then
  23                                         -- Authentication successful!
  24                                         local success, err = sessionmanager.make_authenticated(session, username);
  25                                         if success then
  26                                                 success, err = sessionmanager.bind_resource(session, resource);
  27                                                 --FIXME: Reply with error
  28                                                 if not success then
  29                                                         local reply = st.reply(stanza);
  30                                                         reply.attr.type = "error";
  31                                                         if err == "conflict" then
  32                                                                 reply:tag("error", { code = "409", type = "cancel" })
  33                                                                         :tag("conflict", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" });
  34                                                         elseif err == "constraint" then
  35                                                                 reply:tag("error", { code = "409", type = "cancel" })
  36                                                                         :tag("already-bound", { xmlns = "x-lxmppd:extensions:legacyauth" });
  37                                                         elseif err == "auth" then
  38                                                                 reply:tag("error", { code = "401", type = "auth" })
  39                                                                         :tag("not-authorized", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" });
  40                                                         end
  41                                                         send(session, reply);
  42                                                         return true;
  43                                                 end
  44                                         end
  45                                         send(session, st.reply(stanza));
  46                                         return true;
  47                                 else
  48                                         local reply = st.reply(stanza);
  49                                         reply.attr.type = "error";
  50                                         reply:tag("error", { code = "401", type = "auth" })
  51                                                 :tag("not-authorized", { xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas" });
  52                                         dispatch_stanza(reply);
  53                                         return true;
  54                                 end
  55                         end
  56
  57                 end);