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 datamanager = require "util.datamanager";
  10 local log = require "util.logger".init("auth_internal_plain");
  11 local type = type;
  12 local error = error;
  13 local ipairs = ipairs;
  14 local hashes = require "util.hashes";
  15 local jid_bare = require "util.jid".bare;
  16 local config = require "core.configmanager";
  17 local usermanager = require "core.usermanager";
  18 local new_sasl = require "util.sasl".new;
  19 local nodeprep = require "util.encodings".stringprep.nodeprep;
  20 local hosts = hosts;
  21
  22 local prosody = _G.prosody;
  23
  24 function new_default_provider(host)
  25         local provider = { name = "internal_plain" };
  26         log("debug", "initializing default authentication provider for host '%s'", host);
  27
  28         function provider.test_password(username, password)
  29                 log("debug", "test password '%s' for user %s at host %s", password, username, module.host);
  30                 local credentials = datamanager.load(username, host, "accounts") or {};
  31
  32                 if password == credentials.password then
  33                         return true;
  34                 else
  35                         return nil, "Auth failed. Invalid username or password.";
  36                 end
  37         end
  38
  39         function provider.get_password(username)
  40                 log("debug", "get_password for username '%s' at host '%s'", username, module.host);
  41                 return (datamanager.load(username, host, "accounts") or {}).password;
  42         end
  43
  44         function provider.set_password(username, password)
  45                 local account = datamanager.load(username, host, "accounts");
  46                 if account then
  47                         account.password = password;
  48                         return datamanager.store(username, host, "accounts", account);
  49                 end
  50                 return nil, "Account not available.";
  51         end
  52
  53         function provider.user_exists(username)
  54                 local account = datamanager.load(username, host, "accounts");
  55                 if not account then
  56                         log("debug", "account not found for username '%s' at host '%s'", username, module.host);
  57                         return nil, "Auth failed. Invalid username";
  58                 end
  59                 return true;
  60         end
  61
  62         function provider.create_user(username, password)
  63                 return datamanager.store(username, host, "accounts", {password = password});
  64         end
  65
  66         function provider.get_sasl_handler()
  67                 local realm = module:get_option("sasl_realm") or module.host;
  68                 local getpass_authentication_profile = {
  69                         plain = function(username, realm)
  70                                 local prepped_username = nodeprep(username);
  71                                 if not prepped_username then
  72                                         log("debug", "NODEprep failed on username: %s", username);
  73                                         return "", nil;
  74                                 end
  75                                 local password = usermanager.get_password(prepped_username, realm);
  76                                 if not password then
  77                                         return "", nil;
  78                                 end
  79                                 return password, true;
  80                         end
  81                 };
  82                 return new_sasl(realm, getpass_authentication_profile);
  83         end
  84
  85         return provider;
  86 end
  87
  88 module:add_item("auth-provider", new_default_provider(module.host));
  89