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106 lines
3.5 KiB
106 lines
3.5 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* ClamAV antivirus adminlib.
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*
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* @package antivirus_clamav
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* @copyright 2015 Ruslan Kabalin, Lancaster University.
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* Admin setting for running, adds verification.
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*
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* @package antivirus_clamav
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* @copyright 2015 Ruslan Kabalin, Lancaster University.
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class antivirus_clamav_runningmethod_setting extends admin_setting_configselect {
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/**
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* Save a setting
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*
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* @param string $data
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* @return string empty or error string
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*/
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public function write_setting($data) {
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$validated = $this->validate($data);
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if ($validated !== true) {
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return $validated;
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}
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return parent::write_setting($data);
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}
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/**
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* Validate data.
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*
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* This ensures that unix socket transport is supported by this system.
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*
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* @param string $data
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* @return mixed True on success, else error message.
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*/
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public function validate($data) {
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if ($data === 'unixsocket') {
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$supportedtransports = stream_get_transports();
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if (!array_search('unix', $supportedtransports)) {
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return get_string('errornounixsocketssupported', 'antivirus_clamav');
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}
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}
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return true;
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}
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}
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/**
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* Admin setting for unix socket path, adds verification.
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*
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* @package antivirus_clamav
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* @copyright 2015 Ruslan Kabalin, Lancaster University.
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class antivirus_clamav_pathtounixsocket_setting extends admin_setting_configtext {
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/**
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* Validate data.
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*
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* This ensures that unix socket setting is correct and ClamAV is running.
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*
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* @param string $data
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* @return mixed True on success, else error message.
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*/
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public function validate($data) {
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$result = parent::validate($data);
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if ($result !== true) {
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return $result;
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}
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$runningmethod = get_config('antivirus_clamav', 'runningmethod');
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if ($runningmethod === 'unixsocket') {
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$socket = stream_socket_client('unix://' . $data, $errno, $errstr, ANTIVIRUS_CLAMAV_SOCKET_TIMEOUT);
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if (!$socket) {
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return get_string('errorcantopensocket', 'antivirus_clamav', "$errstr ($errno)");
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} else {
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// Send PING query to ClamAV socket to check its running state.
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fwrite($socket, "nPING\n");
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$response = stream_get_line($socket, 4);
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fclose($socket);
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if ($response !== 'PONG') {
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return get_string('errorclamavnoresponse', 'antivirus_clamav');
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}
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}
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}
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return true;
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}
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}
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