plugins/mod_auth_anonymous.lua

   1 -- Prosody IM
   2 -- Copyright (C) 2008-2010 Matthew Wild
   3 -- Copyright (C) 2008-2010 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 -- luacheck: ignore 212
   9
  10 local new_sasl = require "util.sasl".new;
  11 local datamanager = require "util.datamanager";
  12 local hosts = prosody.hosts;
  13
  14 -- define auth provider
  15 local provider = {};
  16
  17 function provider.test_password(username, password)
  18         return nil, "Password based auth not supported.";
  19 end
  20
  21 function provider.get_password(username)
  22         return nil, "Password not available.";
  23 end
  24
  25 function provider.set_password(username, password)
  26         return nil, "Password based auth not supported.";
  27 end
  28
  29 function provider.user_exists(username)
  30         return nil, "Only anonymous users are supported."; -- FIXME check if anonymous user is connected?
  31 end
  32
  33 function provider.create_user(username, password)
  34         return nil, "Account creation/modification not supported.";
  35 end
  36
  37 function provider.get_sasl_handler()
  38         local anonymous_authentication_profile = {
  39                 anonymous = function(sasl, username, realm)
  40                         return true; -- for normal usage you should always return true here
  41                 end
  42         };
  43         return new_sasl(module.host, anonymous_authentication_profile);
  44 end
  45
  46 function provider.users()
  47         return next, hosts[module.host].sessions, nil;
  48 end
  49
  50 -- datamanager callback to disable writes
  51 local function dm_callback(username, host, datastore, data)
  52         if host == module.host then
  53                 return false;
  54         end
  55         return username, host, datastore, data;
  56 end
  57
  58 if not module:get_option_boolean("allow_anonymous_s2s", false) then
  59         module:hook("route/remote", function (event)
  60                 return false; -- Block outgoing s2s from anonymous users
  61         end, 300);
  62 end
  63
  64 function module.load()
  65         datamanager.add_callback(dm_callback);
  66 end
  67 function module.unload()
  68         datamanager.remove_callback(dm_callback);
  69 end
  70
  71 module:provides("auth", provider);
  72