Current Path : C:/xampp/htdocs/moodle/lib/antivirus/clamav/ |
Current File : C:/xampp/htdocs/moodle/lib/antivirus/clamav/adminlib.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/>. /** * ClamAV antivirus adminlib. * * @package antivirus_clamav * @copyright 2015 Ruslan Kabalin, Lancaster University. * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ defined('MOODLE_INTERNAL') || die(); /** * Admin setting for running, adds verification. * * @package antivirus_clamav * @copyright 2015 Ruslan Kabalin, Lancaster University. * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class antivirus_clamav_runningmethod_setting extends admin_setting_configselect { /** * Save a setting * * @param string $data * @return string empty or error string */ public function write_setting($data) { $validated = $this->validate($data); if ($validated !== true) { return $validated; } return parent::write_setting($data); } /** * Validate data. * * This ensures that the selected socket transport is supported by this system. * * @param string $data * @return mixed True on success, else error message. */ public function validate($data) { $supportedtransports = stream_get_transports(); if ($data === 'unixsocket') { if (array_search('unix', $supportedtransports) === false) { return get_string('errornounixsocketssupported', 'antivirus_clamav'); } } else if ($data === 'tcpsocket') { if (array_search('tcp', $supportedtransports) === false) { return get_string('errornotcpsocketssupported', 'antivirus_clamav'); } } return true; } } /** * Abstract socket checking class * * @package antivirus_clamav * @copyright 2015 Ruslan Kabalin, Lancaster University. * @copyright 2019 Didier Raboud, Liip AG. * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class antivirus_clamav_socket_setting extends admin_setting_configtext { /** * Ping ClamAV socket. * * This ensures that a socket setting is correct and that ClamAV is running. * * @param string $socketaddress Address to the socket to connect to (for stream_socket_client) * @return mixed True on success, else error message. */ protected function validate_clamav_socket($socketaddress) { $socket = stream_socket_client($socketaddress, $errno, $errstr, ANTIVIRUS_CLAMAV_SOCKET_TIMEOUT); if (!$socket) { return get_string('errorcantopensocket', 'antivirus_clamav', "$errstr ($errno)"); } else { // Send PING query to ClamAV socket to check its running state. fwrite($socket, "nPING\n"); $response = stream_get_line($socket, 4); fclose($socket); if ($response !== 'PONG') { return get_string('errorclamavnoresponse', 'antivirus_clamav'); } } return true; } } /** * Admin setting for unix socket path, adds verification. * * @package antivirus_clamav * @copyright 2015 Ruslan Kabalin, Lancaster University. * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class antivirus_clamav_pathtounixsocket_setting extends antivirus_clamav_socket_setting { /** * Validate data. * * This ensures that unix socket setting is correct and ClamAV is running. * * @param string $data * @return mixed True on success, else error message. */ public function validate($data) { $result = parent::validate($data); if ($result !== true) { return $result; } $runningmethod = get_config('antivirus_clamav', 'runningmethod'); if ($runningmethod === 'unixsocket') { return $this->validate_clamav_socket('unix://' . $data); } return true; } } /** * Admin setting for Internet domain socket host, adds verification. * * @package antivirus_clamav * @copyright 2019 Didier Raboud, Liip AG. * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class antivirus_clamav_tcpsockethost_setting extends antivirus_clamav_socket_setting { /** * Validate data. * * This ensures that Internet domain socket setting is correct and ClamAV is running. * * @param string $data * @return mixed True on success, else error message. */ public function validate($data) { $result = parent::validate($data); if ($result !== true) { return $result; } $runningmethod = get_config('antivirus_clamav', 'runningmethod'); $tcpport = get_config('antivirus_clamav', 'tcpsocketport'); if ($tcpport === false) { $tcpport = 3310; } if ($runningmethod === 'tcpsocket') { return $this->validate_clamav_socket('tcp://' . $data . ':' . $tcpport); } return true; } }