plugins/mod_auth_internal_plain.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
   9 local usermanager = require "core.usermanager";
  10 local new_sasl = require "util.sasl".new;
  11
  12 local log = module._log;
  13 local host = module.host;
  14
  15 local accounts = module:open_store("accounts");
  16
  17 -- define auth provider
  18 local provider = {};
  19
  20 function provider.test_password(username, password)
  21         log("debug", "test password for user '%s'", username);
  22         local credentials = accounts:get(username) or {};
  23
  24         if password == credentials.password then
  25                 return true;
  26         else
  27                 return nil, "Auth failed. Invalid username or password.";
  28         end
  29 end
  30
  31 function provider.get_password(username)
  32         log("debug", "get_password for username '%s'", username);
  33         return (accounts:get(username) or {}).password;
  34 end
  35
  36 function provider.set_password(username, password)
  37         log("debug", "set_password for username '%s'", username);
  38         local account = accounts:get(username);
  39         if account then
  40                 account.password = password;
  41                 return accounts:set(username, account);
  42         end
  43         return nil, "Account not available.";
  44 end
  45
  46 function provider.user_exists(username)
  47         local account = accounts:get(username);
  48         if not account then
  49                 log("debug", "account not found for username '%s'", username);
  50                 return nil, "Auth failed. Invalid username";
  51         end
  52         return true;
  53 end
  54
  55 function provider.users()
  56         return accounts:users();
  57 end
  58
  59 function provider.create_user(username, password)
  60         return accounts:set(username, {password = password});
  61 end
  62
  63 function provider.delete_user(username)
  64         return accounts:set(username, nil);
  65 end
  66
  67 function provider.get_sasl_handler()
  68         local getpass_authentication_profile = {
  69                 plain = function(_, username, realm)
  70                         local password = usermanager.get_password(username, realm);
  71                         if not password then
  72                                 return "", nil;
  73                         end
  74                         return password, true;
  75                 end
  76         };
  77         return new_sasl(host, getpass_authentication_profile);
  78 end
  79
  80 module:provides("auth", provider);
  81