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<?php /* <ViaThinkSoftSignature>
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<?php /* <ViaThinkSoftSignature>
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Q==
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A==
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</ViaThinkSoftSignature> */ ?>
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</ViaThinkSoftSignature> */ ?>
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<?php
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<?php
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/*
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/*
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 * VNag - Nagios Framework for PHP
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 * VNag - Nagios Framework for PHP
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 * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>
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 * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>
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 * Licensed under the terms of the Apache 2.0 license
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 * Licensed under the terms of the Apache 2.0 license
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 *
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 *
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 * Revision 2018-11-03
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 * Revision 2022-12-18
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 *
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 *
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 * Changelog:
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 * Changelog:
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 * 2018-08-01   1.0   Initial release
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 * 2018-08-01   1.0   Initial release
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 * 2018-09-02   1.1   Added argument -e|--emptyok
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 * 2018-09-02   1.1   Added argument -e|--emptyok
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 *                    Output a warning if the Linux user does not exist.
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 *                    Output a warning if the Linux user does not exist.
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 * 2018-10-01   1.2   Fixed a bug where too many unnecessary requests were sent to ipinfo.io
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 * 2018-10-01   1.2   Fixed a bug where too many unnecessary requests were sent to ipinfo.io
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 *                    Cache file location ~/.last_ipcache is now preferred
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 *                    Cache file location ~/.last_ipcache is now preferred
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 *                    A token for ipinfo.io can now be provided
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 *                    A token for ipinfo.io can now be provided
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 * 2018-11-03   1.2.1 "system boot" lines are now excluded
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 * 2018-11-03   1.2.1 "system boot" lines are now excluded
- 
 
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 * 2022-12-18   1.2.2 Use the new cache directory now
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 */
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 */
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// QUE: should we allow usernames to have wildcards, regexes or comma separated?
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// QUE: should we allow usernames to have wildcards, regexes or comma separated?
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declare(ticks=1);
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declare(ticks=1);
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        private $cache = null;
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        private $cache = null;
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        private $cacheFile = null;
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        private $cacheFile = null;
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        private $cacheDirty = false;
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        private $cacheDirty = false;
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        protected function getIpCacheFile() {
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                $homedir = @getenv('HOME');
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                if ($homedir) {
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                        $try = "${homedir}/.last_ipcache";
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                        if (file_exists($try)) return $try;
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                        if (@touch($try)) return $try;
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                }
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                $user = posix_getpwuid(posix_geteuid());
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                if (isset($user['dir'])) {
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                        $homedir = $user['dir'];
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                        $try = "${homedir}/.last_ipcache";
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                        if (file_exists($try)) return $try;
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                        if (@touch($try)) return $try;
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                }
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                if (isset($user['name'])) {
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                        $username = $user['name'];
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                        $try = "/tmp/ipcache_${username}.tmp";
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                        if (file_exists($try)) return $try;
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                        if (@touch($try)) return $try;
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                }
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                return false; // should usually never happen
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        }
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        public function __construct() {
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        public function __construct() {
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                parent::__construct();
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                parent::__construct();
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                if ($this->is_http_mode()) {
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                if ($this->is_http_mode()) {
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                        // Don't allow the standard arguments via $_REQUEST
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                        // Don't allow the standard arguments via $_REQUEST
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                $this->getHelpManager()->setShortDescription('This plugin checks the logs of the tool "LAST" an warns when users have logged in with an unexpected IP/Country/ISP.');
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                $this->getHelpManager()->setShortDescription('This plugin checks the logs of the tool "LAST" an warns when users have logged in with an unexpected IP/Country/ISP.');
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                $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.');
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                $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.');
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                $this->getHelpManager()->setSyntax('$SCRIPTNAME$ [-v] [-e] [-u username] [-R regex] [--ipInfoToken token]');
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                $this->getHelpManager()->setSyntax('$SCRIPTNAME$ [-v] [-e] [-u username] [-R regex] [--ipInfoToken token]');
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                $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com');
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                $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com');
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                $this->cacheFile = $this->getIpCacheFile();
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                $this->cacheFile = $this->get_cache_dir() . '/.last_ip_cache';
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                if (!file_exists($this->cacheFile)) @touch($this->cacheFile);
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                $this->cache = $this->cacheFile ? json_decode(file_get_contents($this->cacheFile),true) : array();
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                $this->cache = $this->cacheFile ? json_decode(file_get_contents($this->cacheFile),true) : array();
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        }
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        }
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        public function __destruct() {
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        public function __destruct() {
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                if ($this->cacheFile && $this->cacheDirty) {
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                if ($this->cacheFile && $this->cacheDirty) {