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<?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/>.
/**
* Verifies web crawler (search engine) access
*
* Not combined with disabled guest access because attackers might gain guest
* access by modifying browser signature.
*
* @package core
* @category check
* @copyright 2020 Brendan Heywood <brendan@catalyst-au.net>
* @copyright 2008 petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core\check\security;
defined('MOODLE_INTERNAL') || die();
use core\check\check;
use core\check\result;
/**
* Verifies web crawler (search engine) access
*
* Not combined with disabled guest access because attackers might gain guest
* access by modifying browser signature.
*
* @copyright 2020 Brendan Heywood <brendan@catalyst-au.net>
* @copyright 2008 petr Skoda
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class crawlers extends check {
/**
* Get the short check name
*
* @return string
*/
public function get_name(): string {
return get_string('check_crawlers_name', 'report_security');
}
/**
* A link to a place to action this
*
* @return action_link|null
*/
public function get_action_link(): ?\action_link {
return new \action_link(
new \moodle_url('/admin/settings.php?section=sitepolicies#admin-opentowebcrawlers'),
get_string('sitepolicies', 'admin'));
}
/**
* Return result
* @return result
*/
public function get_result(): result {
global $CFG;
$details = get_string('check_crawlers_details', 'report_security');
if (empty($CFG->opentowebcrawlers)) {
$status = result::OK;
$summary = get_string('check_crawlers_ok', 'report_security');
} else if (!empty($CFG->guestloginbutton)) {
$status = result::INFO;
$summary = get_string('check_crawlers_info', 'report_security');
} else {
$status = result::ERROR;
$summary = get_string('check_crawlers_error', 'report_security');
}
return new result($status, $summary, $details);
}
}