enrol/guest/locallib.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Guest access plugin implementation.
  19  *
  20  * @package    enrol_guest
  21  * @copyright  2010 Petr Skoda  {@link http://skodak.org}
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 defined('MOODLE_INTERNAL') || die();
  26
  27 require_once("$CFG->libdir/formslib.php");
  28
  29 class enrol_guest_enrol_form extends moodleform {
  30     protected $instance;
  31
  32     public function definition() {
  33         $mform = $this->_form;
  34         $instance = $this->_customdata;
  35         $this->instance = $instance;
  36         $plugin = enrol_get_plugin('guest');
  37
  38         $heading = $plugin->get_instance_name($instance);
  39         $mform->addElement('header', 'guestheader', $heading);
  40
  41         $mform->addElement('password', 'guestpassword', get_string('password', 'enrol_guest'));
  42
  43         $this->add_action_buttons(false, get_string('submit'));
  44
  45         $mform->addElement('hidden', 'id');
  46         $mform->setType('id', PARAM_INT);
  47         $mform->setDefault('id', $instance->courseid);
  48
  49         $mform->addElement('hidden', 'instance');
  50         $mform->setType('instance', PARAM_INT);
  51         $mform->setDefault('instance', $instance->id);
  52     }
  53
  54     public function validation($data, $files) {
  55         global $DB, $CFG;
  56
  57         $errors = parent::validation($data, $files);
  58         $instance = $this->instance;
  59
  60         if ($instance->password !== '') {
  61             if ($data['guestpassword'] !== $instance->password) {
  62                 $plugin = enrol_get_plugin('guest');
  63                 if ($plugin->get_config('showhint')) {
  64                     $hint = core_text::substr($instance->password, 0, 1);
  65                     $errors['guestpassword'] = get_string('passwordinvalidhint', 'enrol_guest', $hint);
  66                 } else {
  67                     $errors['guestpassword'] = get_string('passwordinvalid', 'enrol_guest');
  68                 }
  69             }
  70         }
  71
  72         return $errors;
  73     }
  74 }