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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Allows the user to manage calendar subscriptions.
 *
 * @copyright 2012 Jonathan Harker
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @package calendar
 */
namespace core_calendar\local\event\forms;

defined('MOODLE_INTERNAL') || die();

require_once($CFG->libdir . '/formslib.php');

/**
 * Form for adding a subscription to a Moodle course calendar.
 * @copyright 2012 Jonathan Harker
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class managesubscriptions extends \moodleform {

    use eventtype;

    /**
     * Defines the form used to add calendar subscriptions.
     */
    public function definition() {
        global $PAGE;
        $mform = $this->_form;
        $eventtypes = calendar_get_allowed_event_types();
        if (in_array(true, $eventtypes, true) === false) {
< print_error('nopermissiontoupdatecalendar');
> throw new \moodle_exception('nopermissiontoupdatecalendar');
}
< $mform->addElement('header', 'addsubscriptionform', get_string('importcalendarheading', 'calendar')); <
// Name. $mform->addElement('text', 'name', get_string('subscriptionname', 'calendar'), array('maxsize' => '255', 'size' => '40'));
< $mform->addRule('name', get_string('required'), 'required');
> $mform->addRule('name', get_string('required'), 'required', null, 'client');
$mform->setType('name', PARAM_TEXT); // Import from (url | importfile).
< $mform->addElement('html', get_string('importfrominstructions', 'calendar'));
$choices = array(CALENDAR_IMPORT_FROM_FILE => get_string('importfromfile', 'calendar'), CALENDAR_IMPORT_FROM_URL => get_string('importfromurl', 'calendar')); $mform->addElement('select', 'importfrom', get_string('importcalendarfrom', 'calendar'), $choices); $mform->setDefault('importfrom', CALENDAR_IMPORT_FROM_URL); // URL. $mform->addElement('text', 'url', get_string('importfromurl', 'calendar'), array('maxsize' => '255', 'size' => '50')); // Cannot set as PARAM_URL since we need to allow webcal:// protocol. $mform->setType('url', PARAM_RAW); $mform->setForceLtr('url'); // Poll interval $choices = calendar_get_pollinterval_choices(); $mform->addElement('select', 'pollinterval', get_string('pollinterval', 'calendar'), $choices); $mform->setDefault('pollinterval', 604800); $mform->addHelpButton('pollinterval', 'pollinterval', 'calendar'); $mform->setType('pollinterval', PARAM_INT); // Import file $mform->addElement('filepicker', 'importfile', get_string('importfromfile', 'calendar'), null, array('accepted_types' => '.ics')); // Disable appropriate elements depending on import from value. $mform->hideIf('pollinterval', 'importfrom', 'eq', CALENDAR_IMPORT_FROM_FILE); $mform->hideIf('url', 'importfrom', 'eq', CALENDAR_IMPORT_FROM_FILE); $mform->hideIf('importfile', 'importfrom', 'eq', CALENDAR_IMPORT_FROM_URL); // Add the select elements for the available event types. $this->add_event_type_elements($mform, $eventtypes); // Eventtype: 0 = user, 1 = site, anything else = course ID.
< $mform->addElement('submit', 'add', get_string('add'));
> $mform->addElement('submit', 'add', get_string('importcalendar', 'calendar'));
// Add the javascript required to enhance this mform. $PAGE->requires->js_call_amd('core_calendar/event_form', 'init', [$mform->getAttribute('id')]); } /** * Validates the returned data. * * @param array $data * @param array $files * @return array */ public function validation($data, $files) { global $USER; $errors = parent::validation($data, $files); $eventtype = isset($data['eventtype']) ? $data['eventtype'] : null; $coursekey = ($eventtype == 'group') ? 'groupcourseid' : 'courseid'; $courseid = (!empty($data[$coursekey])) ? $data[$coursekey] : null; $eventtypes = calendar_get_allowed_event_types($courseid); if (empty($eventtype) || !isset($eventtypes[$eventtype])) { $errors['eventtype'] = get_string('invalideventtype', 'calendar'); } if ($data['importfrom'] == CALENDAR_IMPORT_FROM_FILE) { if (empty($data['importfile'])) { $errors['importfile'] = get_string('errorrequiredurlorfile', 'calendar'); } else { // Make sure the file area is not empty and contains only one file. $draftitemid = $data['importfile']; $fs = get_file_storage(); $usercontext = \context_user::instance($USER->id); $files = $fs->get_area_files($usercontext->id, 'user', 'draft', $draftitemid, 'id DESC', false); if (count($files) !== 1) { $errors['importfile'] = get_string('errorrequiredurlorfile', 'calendar'); } } } else if (($data['importfrom'] == CALENDAR_IMPORT_FROM_URL)) {
> if (empty($data['url'])) { // Clean input calendar url. > $errors['url'] = get_string('errorrequiredurlorfile', 'calendar'); $url = clean_param($data['url'], PARAM_URL); > } else {
< if (empty($url) || ($url !== $data['url'])) { < $errors['url'] = get_string('invalidurl', 'error');
> try { > calendar_get_icalendar($url); > } catch (\moodle_exception $e) { > $errors['url'] = get_string('errorinvalidicalurl', 'calendar'); > }
} } else { // Shouldn't happen. $errors['url'] = get_string('errorrequiredurlorfile', 'calendar');
> } } > > // Validate course/category event types (ensure appropriate field is also filled in). return $errors; > if ($eventtype === 'course' && empty($data['courseid'])) { } > $errors['courseid'] = get_string('selectacourse'); > } else if ($eventtype === 'category' && empty($data['categoryid'])) { public function definition_after_data() { > $errors['categoryid'] = get_string('required');
$mform =& $this->_form; $mform->applyFilter('url', static::class . '::strip_webcal'); $mform->applyFilter('url', 'trim'); } /** * Replace webcal:// urls with http:// as * curl does not understand this protocol * * @param string @url url to examine * @return string url with webcal:// replaced */ public static function strip_webcal($url) { if (strpos($url, 'webcal://') === 0) { $url = str_replace('webcal://', 'http://', $url); } return $url; } }