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  1. <?php
  2.  
  3. /*
  4.  * OIDplus 2.0
  5.  * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft
  6.  *
  7.  * Licensed under the Apache License, Version 2.0 (the "License");
  8.  * you may not use this file except in compliance with the License.
  9.  * You may obtain a copy of the License at
  10.  *
  11.  *     http://www.apache.org/licenses/LICENSE-2.0
  12.  *
  13.  * Unless required by applicable law or agreed to in writing, software
  14.  * distributed under the License is distributed on an "AS IS" BASIS,
  15.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16.  * See the License for the specific language governing permissions and
  17.  * limitations under the License.
  18.  */
  19.  
  20. namespace ViaThinkSoft\OIDplus;
  21.  
  22. // phpcs:disable PSR1.Files.SideEffects
  23. \defined('INSIDE_OIDPLUS') or die;
  24. // phpcs:enable PSR1.Files.SideEffects
  25.  
  26. class OIDplusLoggerPluginLinuxSyslog extends OIDplusLoggerPlugin {
  27.  
  28.         /**
  29.          * @param string $reason
  30.          * @return bool
  31.          */
  32.         public function available(string &$reason): bool {
  33.                 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
  34.                         $reason = _L('Functionality not available on Windows');
  35.                         return false;
  36.                 }
  37.  
  38.                 if (!@file_exists('/var/log/syslog')) {
  39.                         $reason = _L('File %1 does not exist','/var/log/syslog');
  40.                         return false;
  41.                 }
  42.  
  43.                 if (@file_put_contents('/var/log/syslog', '', FILE_APPEND) === false) {
  44.                         $reason = _L('File %1 is not writeable','/var/log/syslog');
  45.                         return false;
  46.                 }
  47.  
  48.                 $reason = '';
  49.                 return true;
  50.         }
  51.  
  52.         /**
  53.          * @param OIDplusLogEvent $event
  54.          * @return bool
  55.          */
  56.         public function log(OIDplusLogEvent $event): bool {
  57.                 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') return false;
  58.  
  59.                 if (!@file_exists('/var/log/syslog')) return false;
  60.  
  61.                 $users_names = array();
  62.                 $objects_names = array();
  63.                 foreach ($event->getTargets() as $target) {
  64.                         if ($target instanceof OIDplusLogTargetUser) {
  65.                                 $users_names[] = $target->getUsername();
  66.                         } else if ($target instanceof OIDplusLogTargetObject) {
  67.                                 $objects_names[] = $target->getObject();
  68.                         } else {
  69.                                 assert(false);
  70.                         }
  71.                 }
  72.                 $users_info = count($users_names) == 0 ? '' : ' ('._L('affected users: %1',implode(', ',$users_names)).')';
  73.                 $objects_info = count($objects_names) == 0 ? '' : ' ('._L('affected objects: %1',implode(', ',$objects_names)).')';
  74.  
  75.                 $ts = date('Y-m-d H:i:s');
  76.                 $addr = OIDplus::getClientIpAddress() ?: _L('unknown');
  77.                 $line = "[$ts] [$addr] ".$event->getMessage().$users_info.$objects_info;
  78.  
  79.                 return @file_put_contents('/var/log/syslog', "$line\n", FILE_APPEND) !== false;
  80.         }
  81. }