. /** * Self enrol plugin implementation. * * @package enrol_self * @copyright 2010 Petr Skoda {@link http://skodak.org} * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ defined('MOODLE_INTERNAL') || die(); require_once("$CFG->libdir/formslib.php"); require_once($CFG->dirroot . '/enrol/locallib.php'); /** * Check if the given password match a group enrolment key in the specified course. * * @param int $courseid course id * @param string $enrolpassword enrolment password * @return bool True if match * @since Moodle 3.0 */ function enrol_self_check_group_enrolment_key($courseid, $enrolpassword) { global $DB; $found = false; $groups = $DB->get_records('groups', array('courseid' => $courseid), 'id ASC', 'id, enrolmentkey'); foreach ($groups as $group) { if (empty($group->enrolmentkey)) { continue; } if ($group->enrolmentkey === $enrolpassword) { $found = true; break; } } return $found; } class enrol_self_enrol_form extends moodleform { protected $instance; protected $toomany = false; /** * Overriding this function to get unique form id for multiple self enrolments. * * @return string form identifier */ protected function get_form_identifier() { $formid = $this->_customdata->id.'_'.get_class($this); return $formid; } public function definition() { global $USER, $OUTPUT, $CFG; $mform = $this->_form; $instance = $this->_customdata; $this->instance = $instance; $plugin = enrol_get_plugin('self'); $heading = $plugin->get_instance_name($instance); $mform->addElement('header', 'selfheader', $heading); if ($instance->password) { // Change the id of self enrolment key input as there can be multiple self enrolment methods. $mform->addElement('password', 'enrolpassword', get_string('password', 'enrol_self'), array('id' => 'enrolpassword_'.$instance->id)); $context = context_course::instance($this->instance->courseid); $keyholders = get_users_by_capability($context, 'enrol/self:holdkey', user_picture::fields('u')); $keyholdercount = 0; foreach ($keyholders as $keyholder) { $keyholdercount++; if ($keyholdercount === 1) { $mform->addElement('static', 'keyholder', '', get_string('keyholder', 'enrol_self')); } $keyholdercontext = context_user::instance($keyholder->id); if ($USER->id == $keyholder->id || has_capability('moodle/user:viewdetails', context_system::instance()) || has_coursecontact_role($keyholder->id)) { $profilelink = '' . fullname($keyholder) . ''; } else { $profilelink = fullname($keyholder); } $profilepic = $OUTPUT->user_picture($keyholder, array('size' => 35, 'courseid' => $this->instance->courseid)); $mform->addElement('static', 'keyholder'.$keyholdercount, '', $profilepic . $profilelink); } } else { $mform->addElement('static', 'nokey', '', get_string('nopassword', 'enrol_self')); } $this->add_action_buttons(false, get_string('enrolme', 'enrol_self')); $mform->addElement('hidden', 'id'); $mform->setType('id', PARAM_INT); $mform->setDefault('id', $instance->courseid); $mform->addElement('hidden', 'instance'); $mform->setType('instance', PARAM_INT); $mform->setDefault('instance', $instance->id); } public function validation($data, $files) { global $DB, $CFG; $errors = parent::validation($data, $files); $instance = $this->instance; if ($this->toomany) { $errors['notice'] = get_string('error'); return $errors; } if ($instance->password) { if ($data['enrolpassword'] !== $instance->password) { if ($instance->customint1) { // Check group enrolment key. if (!enrol_self_check_group_enrolment_key($instance->courseid, $data['enrolpassword'])) { // We can not hint because there are probably multiple passwords. $errors['enrolpassword'] = get_string('passwordinvalid', 'enrol_self'); } } else { $plugin = enrol_get_plugin('self'); if ($plugin->get_config('showhint')) { $hint = core_text::substr($instance->password, 0, 1); $errors['enrolpassword'] = get_string('passwordinvalidhint', 'enrol_self', $hint); } else { $errors['enrolpassword'] = get_string('passwordinvalid', 'enrol_self'); } } } } return $errors; } }