moodle/badges/ajax.php
Petr Škoda d79d5ac276 MDL-31501 rework user session architecture
List of changes:
 * New OOP API using PHP namespace \core\session\.
 * All handlers now update the sessions table consistently.
 * Experimental DB session support in Oracle.
 * Full support for session file handler (filesystem locking required).
 * New option for alternative session directory.
 * Official memcached session handler support.
 * Workaround for memcached version with non-functional gc.
 * Improved security - forced session id regeneration.
 * Improved compatibility with recent PHP releases.
 * Fixed borked CSS during install in debug mode.
 * Switched to file based sessions in new installs.
 * DB session setting disappears if DB does not support sessions.
 * DB session setting disappears if session handler specified in config.php.
 * Fast purging of sessions used in request only.
 * No legacy distinction -  file, database and memcached support the same functionality.
 * Session handler name included in performance info.
 * Fixed user_loggedin and user_loggedout event triggering.
 * Other minor bugfixing and improvements.
 * Fixed database session segfault if MUC disposed before $DB.

Limitations:
 * Session access time is now updated right after session start.
 * Support for $CFG->sessionlockloggedinonly was removed.
 * First request does not update userid in sessions table.
 * The timeouts may break badly if server hosting forces PHP.ini session settings.
 * The session GC is a lot slower, we do not rely on external session timeouts.
 * There cannot be any hooks triggered at the session write time.
 * File and memcached handlers do not support session lock acquire timeouts.
 * Some low level PHP session functions can not be used directly in Moodle code.
2013-09-21 13:11:56 +02:00

47 lines
1.6 KiB
PHP

<?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/>.
/**
* Sends request to check web site availability.
*
* @package core
* @subpackage badges
* @copyright 2013 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @author Yuliya Bozhko <yuliya.bozhko@totaralms.com>
*/
define('AJAX_SCRIPT', true);
require_once(dirname(dirname(__FILE__)) . '/config.php');
require_once($CFG->libdir . '/badgeslib.php');
require_login();
$PAGE->set_url('/badges/ajax.php');
$PAGE->set_context(context_system::instance());
// Unlock session during potentially long curl request.
\core\session\manager::write_close();
$result = badges_check_backpack_accessibility();
$outcome = new stdClass();
$outcome->code = $result;
$outcome->response = get_string('error:backpacknotavailable', 'badges') . $OUTPUT->help_icon('backpackavailability', 'badges');
echo json_encode($outcome);
die();