auth/nntp/auth.php

   1 <?php
   2
   3 /**
   4  * @author Martin Dougiamas
   5  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   6  * @package moodle multiauth
   7  *
   8  * Authentication Plugin: NNTP Authentication
   9  *
  10  * Authenticates against an NNTP server.
  11  *
  12  * 2006-08-31  File created.
  13  */
  14
  15 if (!defined('MOODLE_INTERNAL')) {
  16     die('Direct access to this script is forbidden.');    ///  It must be included from a Moodle page
  17 }
  18
  19 require_once($CFG->libdir.'/authlib.php');
  20
  21 /**
  22  * NNTP authentication plugin.
  23  */
  24 class auth_plugin_nntp extends auth_plugin_base {
  25
  26     /**
  27      * Constructor.
  28      */
  29     function auth_plugin_nntp() {
  30         $this->authtype = 'nntp';
  31         $this->config = get_config('auth/nntp');
  32     }
  33
  34     /**
  35      * Returns true if the username and password work and false if they are
  36      * wrong or don't exist.
  37      *
  38      * @param string $username The username (with system magic quotes)
  39      * @param string $password The password (with system magic quotes)
  40      * @return bool Authentication success or failure.
  41      */
  42     function user_login ($username, $password) {
  43         if (! function_exists('imap_open')) {
  44             print_error('auth_nntpnotinstalled','auth');
  45             exit;
  46         }
  47
  48         global $CFG;
  49
  50         // try each multiple host
  51         $hosts = split(';', $this->config->host);
  52         foreach ($hosts as $host) {
  53             $host = '{' . trim($host) . ':' . $this->config->port . '/nntp}';
  54
  55             error_reporting(0);
  56             $connection = imap_open($host, stripslashes($username), stripslashes($password), OP_HALFOPEN);
  57             error_reporting($CFG->debug);
  58
  59             if ($connection) {
  60                 imap_close($connection);
  61                 return true;
  62             }
  63         }
  64         return false;
  65     }
  66
  67     /**
  68      * Returns true if this authentication plugin is 'internal'.
  69      *
  70      * @return bool
  71      */
  72     function is_internal() {
  73         return false;
  74     }
  75
  76     /**
  77      * Returns true if this authentication plugin can change the user's
  78      * password.
  79      *
  80      * @return bool
  81      */
  82     function can_change_password() {
  83         return false;
  84     }
  85
  86     /**
  87      * Prints a form for configuring this authentication plugin.
  88      *
  89      * This function is called from admin/auth.php, and outputs a full page with
  90      * a form for configuring this plugin.
  91      *
  92      * @param array $page An object containing all the data for this page.
  93      */
  94     function config_form($config, $err, $user_fields) {
  95         include "config.html";
  96     }
  97
  98     /**
  99      * Processes and stores configuration data for this authentication plugin.
 100      */
 101     function process_config($config) {
 102         // set to defaults if undefined
 103         if (!isset ($config->host)) {
 104             $config->host = '127.0.0.1';
 105         }
 106         if (!isset ($config->port)) {
 107             $config->port = '119';
 108         }
 109         if (!isset($config->changepasswordurl)) {
 110             $config->changepasswordurl = '';
 111         }
 112
 113         // save settings
 114         set_config('host', $config->host, 'auth/nntp');
 115         set_config('port', $config->port, 'auth/nntp');
 116         set_config('changepasswordurl', $config->changepasswordurl, 'auth/nntp');
 117
 118         return true;
 119     }
 120
 121 }
 122
 123 ?>