auth/email/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: Email Authentication
   9  *
  10  * Standard authentication function.
  11  *
  12  * 2006-08-28  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  * Email authentication plugin.
  23  */
  24 class auth_plugin_email extends auth_plugin_base {
  25
  26     /**
  27      * Constructor.
  28      */
  29     function auth_plugin_email() {
  30         $this->authtype = 'email';
  31         $this->config = get_config('auth/email');
  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
  39      * @param string $password The password
  40      * @return bool Authentication success or failure.
  41      */
  42     function user_login ($username, $password) {
  43         global $CFG, $DB;
  44         if ($user = $DB->get_record('user', array('username'=>$username, 'mnethostid'=>$CFG->mnet_localhost_id))) {
  45             return validate_internal_user_password($user, $password);
  46         }
  47         return false;
  48     }
  49
  50     /**
  51      * Updates the user's password.
  52      *
  53      * called when the user password is updated.
  54      *
  55      * @param  object  $user        User table object  (with system magic quotes)
  56      * @param  string  $newpassword Plaintext password (with system magic quotes)
  57      * @return boolean result
  58      *
  59      */
  60     function user_update_password($user, $newpassword) {
  61         $user = get_complete_user_data('id', $user->id);
  62         return update_internal_user_password($user, $newpassword);
  63     }
  64
  65     function can_signup() {
  66         return true;
  67     }
  68
  69     /**
  70      * Sign up a new user ready for confirmation.
  71      * Password is passed in plaintext.
  72      *
  73      * @param object $user new user object
  74      * @param boolean $notify print notice with link and terminate
  75      */
  76     function user_signup($user, $notify=true) {
  77         global $CFG, $DB;
  78         require_once($CFG->dirroot.'/user/profile/lib.php');
  79
  80         $user->password = hash_internal_user_password($user->password);
  81
  82         $user->id = $DB->insert_record('user', $user);
  83
  84         /// Save any custom profile field information
  85         profile_save_data($user);
  86
  87         $user = $DB->get_record('user', array('id'=>$user->id));
  88         events_trigger('user_created', $user);
  89
  90         if (! send_confirmation_email($user)) {
  91             print_error('auth_emailnoemail','auth_email');
  92         }
  93
  94         if ($notify) {
  95             global $CFG, $PAGE, $OUTPUT;
  96             $emailconfirm = get_string('emailconfirm');
  97             $PAGE->navbar->add($emailconfirm);
  98             $PAGE->set_title($emailconfirm);
  99             $PAGE->set_heading($PAGE->course->fullname);
 100             echo $OUTPUT->header();
 101             notice(get_string('emailconfirmsent', '', $user->email), "$CFG->wwwroot/index.php");
 102         } else {
 103             return true;
 104         }
 105     }
 106
 107     /**
 108      * Returns true if plugin allows confirming of new users.
 109      *
 110      * @return bool
 111      */
 112     function can_confirm() {
 113         return true;
 114     }
 115
 116     /**
 117      * Confirm the new user as registered.
 118      *
 119      * @param string $username
 120      * @param string $confirmsecret
 121      */
 122     function user_confirm($username, $confirmsecret) {
 123         global $DB;
 124         $user = get_complete_user_data('username', $username);
 125
 126         if (!empty($user)) {
 127             if ($user->confirmed) {
 128                 return AUTH_CONFIRM_ALREADY;
 129
 130             } else if ($user->auth != $this->authtype) {
 131                 return AUTH_CONFIRM_ERROR;
 132
 133             } else if ($user->secret == $confirmsecret) {   // They have provided the secret key to get in
 134                 $DB->set_field("user", "confirmed", 1, array("id"=>$user->id));
 135                 $DB->set_field("user", "firstaccess", time(), array("id"=>$user->id));
 136                 return AUTH_CONFIRM_OK;
 137             }
 138         } else {
 139             return AUTH_CONFIRM_ERROR;
 140         }
 141     }
 142
 143     function prevent_local_passwords() {
 144         return false;
 145     }
 146
 147     /**
 148      * Returns true if this authentication plugin is 'internal'.
 149      *
 150      * @return bool
 151      */
 152     function is_internal() {
 153         return true;
 154     }
 155
 156     /**
 157      * Returns true if this authentication plugin can change the user's
 158      * password.
 159      *
 160      * @return bool
 161      */
 162     function can_change_password() {
 163         return true;
 164     }
 165
 166     /**
 167      * Returns the URL for changing the user's pw, or empty if the default can
 168      * be used.
 169      *
 170      * @return moodle_url
 171      */
 172     function change_password_url() {
 173         return null; // use default internal method
 174     }
 175
 176     /**
 177      * Returns true if plugin allows resetting of internal password.
 178      *
 179      * @return bool
 180      */
 181     function can_reset_password() {
 182         return true;
 183     }
 184
 185     /**
 186      * Prints a form for configuring this authentication plugin.
 187      *
 188      * This function is called from admin/auth.php, and outputs a full page with
 189      * a form for configuring this plugin.
 190      *
 191      * @param array $page An object containing all the data for this page.
 192      */
 193     function config_form($config, $err, $user_fields) {
 194         include "config.html";
 195     }
 196
 197     /**
 198      * Processes and stores configuration data for this authentication plugin.
 199      */
 200     function process_config($config) {
 201         // set to defaults if undefined
 202         if (!isset($config->recaptcha)) {
 203             $config->recaptcha = false;
 204         }
 205
 206         // save settings
 207         set_config('recaptcha', $config->recaptcha, 'auth/email');
 208         return true;
 209     }
 210
 211     /**
 212      * Returns whether or not the captcha element is enabled, and the admin settings fulfil its requirements.
 213      * @return bool
 214      */
 215     function is_captcha_enabled() {
 216         global $CFG;
 217         return isset($CFG->recaptchapublickey) && isset($CFG->recaptchaprivatekey) && get_config("auth/{$this->authtype}", 'recaptcha');
 218     }
 219
 220 }
 221
 222