gitlabFork/ISPConfig3.git - Solinfo Gitblit

			@@ -34,13 +34,19 @@
			var $class_name = 'rescue_core_module';
			/* No actions at this time. maybe later... */
			var $actions_available = array();
			/**
			* The monitoring-Data of this module.
			* [0] are the actual data, [1] are the data 1 minnute ago [2] are teh data 2 minuntes...
			*/
			private $_monitoringData = array();
			/** The rescue-Data of this module. */
			private $_rescueData = array();

			/**
			* This function is called during ispconfig installation to determine
			* if a symlink shall be created for this plugin.
			*/
			function onInstall() {
			global $conf;
			return true;
			}

			@@ -48,1875 +54,245 @@
			* This function is called when the module is loaded
			*/
			function onLoad() {
			global $app;

			/*
			* Do the monitor every n minutes and write the result to the db
			*/
			$min = @date('i');
			if (($min % $this->interval) == 0) {
			$this->doMonitor();
			}
			$this->_doRescue();
			}

			/*
			This function is called when a change in one of the registered tables is detected.
			The function then raises the events for the plugins.
			/**
			* This function is called when a change in one of the registered tables is detected.
			* The function then raises the events for the plugins.
			*/

			function process($tablename, $action, $data) {
			// not needed
			}

			// end function
			//** Get distribution identifier
			//** IMPORTANT!
			// This is the same code as in install/lib/install.lib.php
			// So if you change it here, you also have to change it in there!
			// Please do not forget to remove the swriteln(); - lines here at this file
			function get_distname() {

			$distname = '';
			$distver = '';
			$distid = '';
			$distbaseid = '';

			//** Debian or Ubuntu
			if (file_exists('/etc/debian_version')) {

			if (trim(file_get_contents('/etc/debian_version')) == '4.0') {
			$distname = 'Debian';
			$distver = '4.0';
			$distid = 'debian40';
			$distbaseid = 'debian';
			} elseif (strstr(trim(file_get_contents('/etc/debian_version')), '5.0')) {
			$distname = 'Debian';
			$distver = 'Lenny';
			$distid = 'debian40';
			$distbaseid = 'debian';
			} elseif (strstr(trim(file_get_contents('/etc/debian_version')), '6.0') \|\| trim(file_get_contents('/etc/debian_version')) == 'squeeze/sid') {
			$distname = 'Debian';
			$distver = 'Squeeze/Sid';
			$distid = 'debian60';
			$distbaseid = 'debian';
			} else {
			$distname = 'Debian';
			$distver = 'Unknown';
			$distid = 'debian40';
			$distbaseid = 'debian';
			}
			}

			//** OpenSuSE
			elseif (file_exists('/etc/SuSE-release')) {
			if (stristr(file_get_contents('/etc/SuSE-release'), '11.0')) {
			$distname = 'openSUSE';
			$distver = '11.0';
			$distid = 'opensuse110';
			$distbaseid = 'opensuse';
			} elseif (stristr(file_get_contents('/etc/SuSE-release'), '11.1')) {
			$distname = 'openSUSE';
			$distver = '11.1';
			$distid = 'opensuse110';
			$distbaseid = 'opensuse';
			} elseif (stristr(file_get_contents('/etc/SuSE-release'), '11.2')) {
			$distname = 'openSUSE';
			$distver = '11.1';
			$distid = 'opensuse110';
			$distbaseid = 'opensuse';
			} else {
			$distname = 'openSUSE';
			$distver = 'Unknown';
			$distid = 'opensuse110';
			$distbaseid = 'opensuse';
			}
			}


			//** Redhat
			elseif (file_exists('/etc/redhat-release')) {

			$content = file_get_contents('/etc/redhat-release');

			if (stristr($content, 'Fedora release 9 (Sulphur)')) {
			$distname = 'Fedora';
			$distver = '9';
			$distid = 'fedora9';
			$distbaseid = 'fedora';
			} elseif (stristr($content, 'Fedora release 10 (Cambridge)')) {
			$distname = 'Fedora';
			$distver = '10';
			$distid = 'fedora9';
			$distbaseid = 'fedora';
			} elseif (stristr($content, 'Fedora release 10')) {
			$distname = 'Fedora';
			$distver = '11';
			$distid = 'fedora9';
			$distbaseid = 'fedora';
			} elseif (stristr($content, 'CentOS release 5.2 (Final)')) {
			$distname = 'CentOS';
			$distver = '5.2';
			$distid = 'centos52';
			$distbaseid = 'fedora';
			} elseif (stristr($content, 'CentOS release 5.3 (Final)')) {
			$distname = 'CentOS';
			$distver = '5.3';
			$distid = 'centos53';
			$distbaseid = 'fedora';
			} else {
			$distname = 'Redhat';
			$distver = 'Unknown';
			$distid = 'fedora9';
			$distbaseid = 'fedora';
			}
			}

			//** Gentoo
			elseif (file_exists('/etc/gentoo-release')) {

			$content = file_get_contents('/etc/gentoo-release');

			preg_match_all('/([0-9]{1,2})/', $content, $version);
			$distname = 'Gentoo';
			$distver = $version[0][0] . $version[0][1];
			$distid = 'gentoo';
			$distbaseid = 'gentoo';
			} else {
			die('Unrecognized GNU/Linux distribution');
			}

			return array('name' => $distname, 'version' => $distver, 'id' => $distid, 'baseid' => $distbaseid);
			}

			/*
			This method is called every n minutes, when the module ist loaded.
			The method then does a system-monitoring
			/**
			* This Method tries to rescue the server if a service is down.
			*/

			// TODO: what monitoring is done should be a config-var
			function doMonitor() {
			/* Calls the single Monitoring steps */
			$this->monitorHDQuota();
			$this->monitorServer();
			$this->monitorOSVer();
			$this->monitorIspCVer();
			$this->monitorDiskUsage();
			$this->monitorMemUsage();
			$this->monitorCpu();
			$this->monitorServices();
			if (@file_exists('/proc/user_beancounters')) {
			$this->monitorOpenVzHost();
			$this->monitorOpenVzUserBeancounter();
			}
			$this->monitorMailLog();
			$this->monitorMailWarnLog();
			$this->monitorMailErrLog();
			$this->monitorMessagesLog();
			$this->monitorISPCCronLog();
			$this->monitorFreshClamLog();
			$this->monitorClamAvLog();
			$this->monitorIspConfigLog();
			$this->monitorSystemUpdate();
			$this->monitorMailQueue();
			$this->monitorRaid();
			$this->monitorRkHunter();
			$this->monitorFail2ban();
			$this->monitorSysLog();
			}

			function monitorHDQuota() {
			global $app;
			private function _doRescue() {
			/*
			* do nothing, if the rescue-system is not enabled
			*/
			global $conf;

			/* Initialize data array */
			$data = array();

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'harddisk_quota';

			/** The state of the harddisk_quota. */
			$state = 'ok';

			/** Fetch the data for all users */
			$dfData = shell_exec('repquota -au');

			// split into array
			$df = explode("\n", $dfData);

			/*
			* ignore the first 5 lines, process the rest
			*/
			for ($i = 5; $i <= sizeof($df); $i++) {
			if ($df[$i] != '') {
			/*
			* Make a array of the data
			*/
			$s = preg_split('/[\s]+/', $df[$i]);
			$username = $s[0];
			if (substr($username, 0, 3) == 'web') {
			if (isset($data['user'][$username])) {
			$data['user'][$username]['used'] += $s[2];
			$data['user'][$username]['soft'] += $s[3];
			$data['user'][$username]['hard'] += $s[4];
			} else {
			$data['user'][$username]['used'] = $s[2];
			$data['user'][$username]['soft'] = $s[3];
			$data['user'][$username]['hard'] = $s[4];
			}
			}
			}
			}

			/** Fetch the data for all users */
			$dfData = shell_exec('repquota -ag');

			// split into array
			$df = explode("\n", $dfData);

			/*
			* ignore the first 5 lines, process the rest
			*/
			for ($i = 5; $i <= sizeof($df); $i++) {
			if ($df[$i] != '') {
			/*
			* Make a array of the data
			*/
			$s = preg_split('/[\s]+/', $df[$i]);
			$groupname = $s[0];
			if (substr($groupname, 0, 6) == 'client') {
			if (isset($data['group'][$groupname])) {
			$data['group'][$groupname]['used'] += $s[1];
			$data['group'][$groupname]['soft'] += $s[2];
			$data['group'][$groupname]['hard'] += $s[3];
			} else {
			$data['group'][$groupname]['used'] = $s[1];
			$data['group'][$groupname]['soft'] = $s[2];
			$data['group'][$groupname]['hard'] = $s[3];
			}
			}
			}
			}

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorServer() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'server_load';

			/*
			Fetch the data into a array
			*/
			$procUptime = shell_exec("cat /proc/uptime \| cut -f1 -d' '");
			$data['up_days'] = floor($procUptime / 86400);
			$data['up_hours'] = floor(($procUptime - $data['up_days'] * 86400) / 3600);
			$data['up_minutes'] = floor(($procUptime - $data['up_days'] * 86400 - $data['up_hours'] * 3600) / 60);

			$data['uptime'] = shell_exec('uptime');

			$tmp = explode(',', $data['uptime'], 4);
			$tmpUser = explode(' ', trim($tmp[2]));
			$data['user_online'] = intval($tmpUser[0]);

			//* New Load Average code to fix "always zero" bug in non-english distros. NEEDS TESTING
			$loadTmp = shell_exec("cat /proc/loadavg \| cut -f1-3 -d' '");
			$load = explode(' ', $loadTmp);
			$data['load_1'] = floatval(str_replace(',', '.', $load[0]));
			$data['load_5'] = floatval(str_replace(',', '.', $load[1]));
			$data['load_15'] = floatval(str_replace(',', '.', $load[2]));

			/** The state of the server-load. */
			$state = 'ok';
			if ($data['load_1'] > 20)
			$state = 'info';
			if ($data['load_1'] > 50)
			$state = 'warning';
			if ($data['load_1'] > 100)
			$state = 'critical';
			if ($data['load_1'] > 150)
			$state = 'error';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorOsVer() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'os_info';

			/*
			Fetch the data into a array
			*/
			$dist = $this->get_distname();

			$data['name'] = $dist['name'];
			$data['version'] = $dist['version'];

			/* the OS has no state. It is, what it is */
			$state = 'no_state';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorIspcVer() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'ispc_info';

			/*
			Fetch the data into a array
			*/
			$data['name'] = ISPC_APP_TITLE;
			$data['version'] = ISPC_APP_VERSION;

			/* the ISPC-Version has no state. It is, what it is */
			$state = 'no_state';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorDiskUsage() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'disk_usage';

			/** The state of the disk-usage */
			$state = 'ok';

			/** Fetch the data of ALL devices into a array (needed for monitoring!) */
			$dfData = shell_exec('df -hT');

			// split into array
			$df = explode("\n", $dfData);

			/*
			* ignore the first line, process the rest
			*/
			for ($i = 1; $i <= sizeof($df); $i++) {
			if ($df[$i] != '') {
			/*
			* Make an array of the data
			*/
			$s = preg_split('/[\s]+/', $df[$i]);
			$data[$i]['fs'] = $s[0];
			$data[$i]['type'] = $s[1];
			$data[$i]['size'] = $s[2];
			$data[$i]['used'] = $s[3];
			$data[$i]['available'] = $s[4];
			$data[$i]['percent'] = $s[5];
			$data[$i]['mounted'] = $s[6];
			/*
			* calculate the state
			*/
			$usePercent = floatval($data[$i]['percent']);

			//* We don't want to check some filesystem which have no sensible filling levels
			switch ($data[$i]['type']) {
			case 'iso9660':
			case 'cramfs':
			case 'udf':
			case 'tmpfs':
			case 'devtmpfs':
			case 'udev':
			break;
			default:
			if ($usePercent > 75)
			$state = $this->_setState($state, 'info');
			if ($usePercent > 80)
			$state = $this->_setState($state, 'warning');
			if ($usePercent > 90)
			$state = $this->_setState($state, 'critical');
			if ($usePercent > 95)
			$state = $this->_setState($state, 'error');
			break;
			}
			}
			}


			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorMemUsage() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'mem_usage';

			/*
			Fetch the data into a array
			*/
			$miData = shell_exec('cat /proc/meminfo');

			$memInfo = explode("\n", $miData);

			foreach ($memInfo as $line) {
			$part = preg_split('/:/', $line);
			$key = trim($part[0]);
			$tmp = explode(' ', trim($part[1]));
			$value = 0;
			if ($tmp[1] == 'kB')
			$value = $tmp[0] * 1024;
			$data[$key] = $value;
			}

			/*
			* actually this info has no state.
			* maybe someone knows better...???...
			*/
			$state = 'no_state';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorCpu() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'cpu_info';

			/*
			Fetch the data into a array
			*/
			if (file_exists('/proc/cpuinfo')) {
			$cpuData = shell_exec('cat /proc/cpuinfo');
			$cpuInfo = explode("\n", $cpuData);
			$processor = 0;

			foreach ($cpuInfo as $line) {

			$part = preg_split('/:/', $line);
			$key = trim($part[0]);
			$value = trim($part[1]);
			if ($key == 'processor')
			$processor = intval($value);
			if ($key != '')
			$data[$key . ' ' . $processor] = $value;
			}

			/* the cpu has no state. It is, what it is */
			$state = 'no_state';
			} else {
			/*
			* It is not Linux, so there is no data and no state
			*
			* no_state, NOT unknown, because "unknown" is shown as state
			* inside the GUI. no_state is hidden.
			*
			* We have to write NO DATA inside the DB, because the GUI
			* could not know, if there is any dat, or not...
			*/
			$state = 'no_state';
			$data['output'] = '';
			}


			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorServices() {
			global $app;
			global $conf;

			/** the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** get the "active" Services of the server from the DB */
			$services = $app->dbmaster->queryOneRecord('SELECT * FROM server WHERE server_id = ' . $server_id);

			/* The type of the Monitor-data */
			$type = 'services';

			/** the State of the monitoring */
			/* ok, if ALL active services are running,
			* error, if not
			* There is no other state!
			*/
			$state = 'ok';

			/* Monitor Webserver */
			$data['webserver'] = -1; // unknown - not needed
			if ($services['web_server'] == 1) {
			if ($this->_checkTcp('localhost', 80)) {
			$data['webserver'] = 1;
			} else {
			$data['webserver'] = 0;
			$state = 'error'; // because service is down
			}
			}

			/* Monitor FTP-Server */
			$data['ftpserver'] = -1; // unknown - not needed
			if ($services['file_server'] == 1) {
			if ($this->_checkFtp('localhost', 21)) {
			$data['ftpserver'] = 1;
			} else {
			$data['ftpserver'] = 0;
			$state = 'error'; // because service is down
			}
			}

			/* Monitor SMTP-Server */
			$data['smtpserver'] = -1; // unknown - not needed
			if ($services['mail_server'] == 1) {
			if ($this->_checkTcp('localhost', 25)) {
			$data['smtpserver'] = 1;
			} else {
			$data['smtpserver'] = 0;
			$state = 'error'; // because service is down
			}
			}

			/* Monitor POP3-Server */
			$data['pop3server'] = -1; // unknown - not needed
			if ($services['mail_server'] == 1) {
			if ($this->_checkTcp('localhost', 110)) {
			$data['pop3server'] = 1;
			} else {
			$data['pop3server'] = 0;
			$state = 'error'; // because service is down
			}
			}

			/* Monitor IMAP-Server */
			$data['imapserver'] = -1; // unknown - not needed
			if ($services['mail_server'] == 1) {
			if ($this->_checkTcp('localhost', 143)) {
			$data['imapserver'] = 1;
			} else {
			$data['imapserver'] = 0;
			$state = 'error'; // because service is down
			}
			}

			/* Monitor BIND-Server */
			$data['bindserver'] = -1; // unknown - not needed
			if ($services['dns_server'] == 1) {
			if ($this->_checkTcp('localhost', 53)) {
			$data['bindserver'] = 1;
			} else {
			$data['bindserver'] = 0;
			$state = 'error'; // because service is down
			}
			}

			/* Monitor MySQL Server */
			$data['mysqlserver'] = -1; // unknown - not needed
			if ($services['db_server'] == 1) {
			if ($this->_checkTcp('localhost', 3306)) {
			$data['mysqlserver'] = 1;
			} else {
			$data['mysqlserver'] = 0;
			$state = 'error'; // because service is down
			}
			}


			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorOpenVzHost() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'openvz_veinfo';

			/*
			Fetch the data into a array
			*/
			$app->load(openvz_tools);
			$openVzTools = new openvz_tools();
			$data = $openVzTools->getOpenVzVeInfo();

			/* the VE-Info has no state. It is, what it is */
			$state = 'no_state';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorOpenVzUserBeancounter() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'openvz_beancounter';

			/*
			Fetch the data into a array
			*/
			$app->load(openvz_tools);
			$openVzTools = new openvz_tools();
			$data = $openVzTools->getOpenVzVeBeanCounter();

			/* calculate the state of the beancounter */
			if ($data == '') {
			$state = 'no_state';
			} else {
			$state = 'ok';

			/* transfer this output-string into a array */
			$test = explode("\n", $data);

			/* the first list of the output is not needed */
			array_shift($test);

			/* now process all items of the rest */
			foreach ($test as $item) {
			/*
			* eliminate all doubled spaces and spaces at the beginning and end
			*/
			while (strpos($item, ' ') !== false) {
			$item = str_replace(' ', ' ', $item);
			}
			$item = trim($item);

			/*
			* The failcounter is the LAST
			*/
			if ($item != '') {
			$tmp = explode(' ', $item);
			$failCounter = $tmp[sizeof($tmp) - 1];
			if ($failCounter > 0)
			$state = 'info';
			if ($failCounter > 50)
			$state = 'warning';
			if ($failCounter > 200)
			$state = 'critical';
			if ($failCounter > 10000)
			$state = 'error';
			}
			}
			}

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorSystemUpdate() {
			/*
			* This monitoring is expensive, so do it only once an hour
			*/
			$min = date('i');
			if ($min != 0)
			if ((!isset($conf['serverconfig']['rescue']['try_rescue'])) \|\|
			((isset($conf['serverconfig']['rescue']['try_rescue'])) && ($conf['serverconfig']['rescue']['try_rescue'] !='y'))){
			return;
			}

			/*
			* OK - here we go...
			* First we get the monitoring data needed for rescuing the system
			*/
			$this->_monitoringData = $this->_getMonitoringData();

			/*
			* Next we get the rescue data needed for rescuing the system
			*/
			$this->_rescueData = $this->_getRescueData();

			/*
			* rescue apache if needed
			*/
			$this->_rescueApache();

			/*
			* The last step is to save the rescue-data
			*/
			$this->_saveRescueData();
			}

			/**
			* This gets the Monitoring-Data, needed for rescuing the system.
			* Because we can not be 100% sure, that the mysql-DB is up and running, so we use the
			* file-system (this is no problem, because this module is the only one using this data,
			* so we do not have parallel access.
			*/
			private function _getMonitoringData() {
			global $app;
			global $conf;

			$dataFilename = dirname(__FILE__) . "/../lib/rescue_module_monitoringdata.ser.txt";

			/*
			* If the file containing the data is too old (older than 5 minutes) it is better to
			* delete it, because it could be, that the server was down for some times and so the data
			* are outdated
			*/
			if (file_exists($dataFilename) && (filemtime($dataFilename) < (time() - 5 * 60))) {
			unlink($dataFilename);
			}

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'system_update';

			/* This monitoring is only available on Debian or Ubuntu */
			if (file_exists('/etc/debian_version')) {

			/*
			* first update the "apt database"
			*/
			shell_exec('apt-get update');

			/*
			* Then test the upgrade.
			* if there is any output, then there is a needed update
			*/
			$aptData = shell_exec('apt-get -s -qq dist-upgrade');
			if ($aptData == '') {
			/* There is nothing to update! */
			$state = 'ok';
			} else {
			/*
			* There is something to update! this is in most cases not critical, so we can
			* do a system-update once a month or so...
			*/
			$state = 'info';
			}

			/*
			* Fetch the output
			*/
			$data['output'] = shell_exec('apt-get -s -q dist-upgrade');
			} elseif (file_exists('/etc/gentoo-release')) {

			/*
			* first update the portage tree
			*/

			// In keeping with gentoo's rsync policy, don't update to frequently (every four hours - taken from http://www.gentoo.org/doc/en/source_mirrors.xml)
			$do_update = true;
			if (file_exists('/usr/portage/metadata/timestamp.chk')) {
			$datetime = file_get_contents('/usr/portage/metadata/timestamp.chk');
			$datetime = trim($datetime);

			$dstamp = strtotime($datetime);
			if ($dstamp) {
			$checkat = $dstamp + 14400; // + 4hours
			if (mktime() < $checkat) {
			$do_update = false;
			}
			}
			}

			if ($do_update) {
			shell_exec('emerge --sync --quiet');
			}

			/*
			* Then test the upgrade.
			* if there is any output, then there is a needed update
			*/
			$emergeData = shell_exec('glsa-check -t affected');
			if ($emergeData == '') {
			/* There is nothing to update! */
			$state = 'ok';
			$data['output'] = 'No unapplied GLSA\'s found on the system.';
			} else {
			/* There is something to update! */
			$state = 'info';
			$data['output'] = shell_exec('glsa-check -pv --nocolor affected 2>/dev/null');
			}
			/*
			* Get the monitoring-data
			*/
			if (file_exists($dataFilename)) {
			$data = unserialize(file_get_contents($dataFilename));
			} else {
			/*
			* It is not Debian/Ubuntu, so there is no data and no state
			*
			* no_state, NOT unknown, because "unknown" is shown as state
			* inside the GUI. no_state is hidden.
			*
			* We have to write NO DATA inside the DB, because the GUI
			* could not know, if there is any dat, or not...
			*/
			$state = 'no_state';
			$data['output'] = '';
			$data = array();
			}

			/*
			* $temp[0] was the data of the last monitoring (means 1 minute ago), $temp[1] is the data
			* 2 minutes ago and so on. Now we have make place for the newest data...
			*/
			$max = sizeof($data);
			if ($max > 10){
			$max = 10; // not more than 10 histories
			}
			for ($i = $max; $i > 0; $i--){
			$data[$i] = $data[$i -1];
			}

			/*
			* we need the monitoring tools
			*/
			$app->load('monitor_tools');
			$tools = new monitor_tools();

			/*
			* Call the needed Monitoring-step and get the data
			*/
			$tmp[0] = $tools->monitorServices();

			/* Add the data at the FIRST position of the history */
			$data[0] = $tmp;

			/*
			* We have the newest monitoring data. Save it!
			*/
			file_put_contents($dataFilename, serialize($data));

			/* Thats it */
			return $data;
			}

			/**
			* This gets the rescue-Data, needed for rescuing the system.
			* Because we can not be 100% sure, that the mysql-DB is up and running, so we use the
			* file-system (this is no problem, because this module is the only one using this data,
			* so we do not have parallel access.
			*/
			private function _getRescueData() {
			$dataFilename = dirname(__FILE__) . "/../lib/rescue_module_rescuedata.ser.txt";

			/*
			* If the file containing the data is too old (older than 5 minutes) it is better to
			* delete it, because it could be, that the server was down for some times and so the data
			* are outdated
			*/
			if (file_exists($dataFilename) && (filemtime($dataFilename) < (time() - 5 * 60))) {
			unlink($dataFilename);
			}

			/*
			* Insert the data into the database
			* Get the rescue-data
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorMailQueue() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'mailq';

			/* Get the data from the mailq */
			$data['output'] = shell_exec('mailq');

			/*
			* The last line has more informations
			*/
			$tmp = explode("\n", $data['output']);
			$more = $tmp[sizeof($tmp) - 1];
			$this->_getIntArray($more);
			$data['bytes'] = $res[0];
			$data['requests'] = $res[1];

			/** The state of the mailq. */
			$state = 'ok';
			if ($data['requests'] > 2000)
			$state = 'info';
			if ($data['requests'] > 5000)
			$state = 'warning';
			if ($data['requests'] > 8000)
			$state = 'critical';
			if ($data['requests'] > 10000)
			$state = 'error';

			/*
			* Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorRaid() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'raid_state';

			/*
			* We support several RAID types, but if we can't find any of them, we have no data
			*/
			$state = 'no_state';
			$data['output'] = '';

			/*
			* Check, if Software-RAID is enabled
			*/
			if (file_exists('/proc/mdstat')) {
			/*
			* Fetch the output
			*/
			$data['output'] = shell_exec('cat /proc/mdstat');

			/*
			* Then calc the state.
			*/
			$tmp = explode("\n", $data['output']);
			$state = 'ok';
			for ($i = 0; $i < sizeof($tmp); $i++) {
			/* fetch the next line */
			$line = $tmp[$i];

			if ((strpos($line, '[U_]') !== false) \|\| (strpos($line, '[_U]') !== false)) {
			/* One Disk is not working.
			* if the next line starts with "[>" or "[=" then
			* recovery (resync) is in state and the state is
			* information instead of critical
			*/
			$nextLine = $tmp[$i + 1];
			if ((strpos($nextLine, '[>') === false) && (strpos($nextLine, '[=') === false)) {
			$state = $this->_setState($state, 'critical');
			} else {
			$state = $this->_setState($state, 'info');
			}
			}
			if (strpos($line, '[__]') !== false) {
			/* both Disk are not working */
			$state = $this->_setState($state, 'error');
			}
			if (strpos($line, '[UU]') !== false) {
			/* The disks are OK.
			* if the next line starts with "[>" or "[=" then
			* recovery (resync) is in state and the state is
			* information instead of ok
			*/
			$nextLine = $tmp[$i + 1];
			if ((strpos($nextLine, '[>') === false) && (strpos($nextLine, '[=') === false)) {
			$state = $this->_setState($state, 'ok');
			} else {
			$state = $this->_setState($state, 'info');
			}
			}
			}
			if (file_exists($dataFilename)) {
			$data = unserialize(file_get_contents($dataFilename));
			} else {
			$data = array();
			}
			/*
			* Check, if we have mpt-status installed (LSIsoftware-raid)
			*/
			if (file_exists('/proc/mpt/summary')) {
			system('which mpt-status', $retval);
			if ($retval === 0) {
			/*
			* Fetch the output
			*/
			$data['output'] = shell_exec('mpt-status --autoload -n');

			/*
			* Then calc the state.
			*/
			$state = 'ok';
			foreach ($data['output'] as $item) {
			/*
			* The output contains information for every RAID and every HDD.
			* We only need the state of the RAID
			*/
			if (strpos($item, 'raidlevel:') !== false) {
			/*
			* We found a raid, process the state of it
			*/
			if (strpos($item, ' ONLINE ') !== false) {
			$this->_setState($state, 'ok');
			} elseif (strpos($item, ' OPTIMAL ') !== false) {
			$this->_setState($state, 'ok');
			} elseif (strpos($item, ' INITIAL ') !== false) {
			$this->_setState($state, 'info');
			} elseif (strpos($item, ' INACTIVE ') !== false) {
			$this->_setState($state, 'critical');
			} elseif (strpos($item, ' RESYNC ') !== false) {
			$this->_setState($state, 'info');
			} elseif (strpos($item, ' DEGRADED ') !== false) {
			$this->_setState($state, 'critical');
			} else {
			/* we don't know the state. so we set the state to critical, that the
			* admin is warned, that something is wrong
			*/
			$this->_setState($state, 'critical');
			}
			}
			}
			}
			}

			/*
			* Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);

			/* Thats it */
			return $data;
			}

			function monitorRkHunter() {
			/**
			* Writes the rescue data to disk.
			* Because we can not be 100% sure, that the mysql-DB is up and running, so we use the
			* file-system (this is no problem, because this module is the only one using this data,
			* so we do not have parallel access.
			*/
			private function _saveRescueData() {
			$dataFilename = dirname(__FILE__) . "/../lib/rescue_module_rescuedata.ser.txt";
			file_put_contents($dataFilename, serialize($this->_rescueData));
			}

			/**
			* restarts apache, if needed
			*/
			private function _rescueApache(){
			global $app, $conf;

			/*
			* This monitoring is expensive, so do it only once a day
			* do nothing, if it is not allowed to rescue apache
			*/
			$min = date('i');
			$hour = date('H');
			if (!($min == 0 && $hour == 23))
			if ((isset($conf['serverconfig']['rescue']['do_not_try_rescue_apache']) && ($conf['serverconfig']['rescue']['do_not_try_rescue_apache']) == 'y')){
			return;

			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'rkhunter';

			/* This monitoring is only available if rkhunter is installed */
			system('which rkhunter', $retval);
			if ($retval === 0) {
			/*
			* Fetch the output
			}

			/*
			* if the service is up and running, or the service is not installed there is nothing to do...
			*/
			if ($this->_monitoringData[0][0]['data']['webserver'] != 0){
			/* Clear the try counter, because we do not have to try to rescue the service */
			$this->_rescueData['webserver']['try_counter'] = 0;
			return;
			}

			/*
			* OK, the service is installed and down.
			* Maybe this is because of a restart of the service by the admin.
			* This means, we check the data 1 minute ago
			*/
			if ((!isset($this->_monitoringData[1][0]['data']['webserver'])) \|\|
			((isset($this->_monitoringData[1][0]['data']['webserver'])) && ($this->_monitoringData[1][0]['data']['webserver'] != 0))){
			/*
			* We do NOT have this data or we have this data, but the webserver was not down 1 minute ago.
			* This means, it could be, that the admin is restarting the server.
			* We wait one more minute...
			*/
			$data['output'] = shell_exec('rkhunter --update --checkall --nocolors --skip-keypress');
			return;
			}

			/*#####
			* The service is down and it was down 1 minute ago.
			* We try to rescue it
			#####/

			/* Get the try counter */
			$tryCount = (!isset($this->_rescueData['webserver']['try_counter']))? 1 : $this->_rescueData['webserver']['try_counter'] + 1;

			/* Set the new try counter */
			$this->_rescueData['webserver']['try_counter'] = $tryCount;

			/* if 5 times will not work, we have to give up... */
			if ($tryCount > 5){
			$app->log('Apache is down! Rescue will not help!', LOGLEVEL_ERROR);
			return;
			}


			$app->log('Apache is down! Try rescue apache (try:' . $tryCount . ')...', LOGLEVEL_WARN);
			// echo 'Apache is down! Try rescue apache (try:' . $tryCount . ')...';

			/*
			* At this moment, there is no state (maybe later)
			*/
			$state = 'no_state';
			/*
			* First we stop the running service "normally"
			*/
			$daemon = '';
			if(is_file($conf['init_scripts'] . '/' . 'httpd')) {
			$daemon = 'httpd';
			} else {
			/*
			* rkhunter is not installed, so there is no data and no state
			*
			* no_state, NOT unknown, because "unknown" is shown as state
			* inside the GUI. no_state is hidden.
			*
			* We have to write NO DATA inside the DB, because the GUI
			* could not know, if there is any dat, or not...
			*/
			$state = 'no_state';
			$data['output'] = '';
			$daemon = 'apache2';
			}


			/*
			* Insert the data into the database
			* ATTENTION!
			* The service hangs. this means it could be, that "stop" will hang also.
			* So we have to try to stop but if this will not work, we have to kill the stopping
			* of the service
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			exec($conf['init_scripts'] . '/' . $daemon . ' stop && (sleep 3; kill $!; sleep 2; kill -9 $!) &> /dev/null');

			/*
			* OK, we tryed to stop it normally, maybe this worked maybe not. So we have to look
			* if the service is already running or not. If so, we have to kill them hard
			*/
			exec("kill -9 `ps -A \| grep " . $daemon . "\| grep -v grep \| awk '{print $1}'` &> /dev/null");

			/*
			* There are no more zombies left. Lets start the service..
			*/
			exec($conf['init_scripts'] . '/' . $daemon . ' start');
			}

			function monitorFail2ban() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'log_fail2ban';

			/* This monitoring is only available if fail2ban is installed */
			system('which fail2ban-client', $retval); // Debian, Ubuntu, Fedora
			if ($retval !== 0)
			system('which fail2ban', $retval); // CentOS
			if ($retval === 0) {
			/* Get the data of the log */
			$data = $this->_getLogData($type);

			/*
			* At this moment, there is no state (maybe later)
			*/
			$state = 'no_state';
			} else {
			/*
			* fail2ban is not installed, so there is no data and no state
			*
			* no_state, NOT unknown, because "unknown" is shown as state
			* inside the GUI. no_state is hidden.
			*
			* We have to write NO DATA inside the DB, because the GUI
			* could not know, if there is any dat, or not...
			*/
			$state = 'no_state';
			$data = '';
			}

			/*
			* Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorSysLog() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'sys_log';

			/*
			* is there any warning or error for this server?
			*/
			$state = 'ok';
			$dbData = $app->dbmaster->queryAllRecords('SELECT loglevel FROM sys_log WHERE server_id = ' . $server_id . ' AND loglevel > 0');
			if (is_array($dbData)) {
			foreach ($dbData as $item) {
			if ($item['loglevel'] == 1)
			$state = $this->_setState($state, 'warning');
			if ($item['loglevel'] == 2)
			$state = $this->_setState($state, 'error');
			}
			}

			/** There is no monitor-data because the data is in the sys_log table */
			$data['output'] = '';

			/*
			* Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorMailLog() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'log_mail';

			/* Get the data of the log */
			$data = $this->_getLogData($type);

			/*
			* actually this info has no state.
			* maybe someone knows better...???...
			*/
			$state = 'no_state';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorMailWarnLog() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'log_mail_warn';

			/* Get the data of the log */
			$data = $this->_getLogData($type);

			/*
			* actually this info has no state.
			* maybe someone knows better...???...
			*/
			$state = 'no_state';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorMailErrLog() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'log_mail_err';

			/* Get the data of the log */
			$data = $this->_getLogData($type);

			/*
			* actually this info has no state.
			* maybe someone knows better...???...
			*/
			$state = 'no_state';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorMessagesLog() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'log_messages';

			/* Get the data of the log */
			$data = $this->_getLogData($type);

			/*
			* actually this info has no state.
			* maybe someone knows better...???...
			*/
			$state = 'no_state';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorISPCCronLog() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'log_ispc_cron';

			/* Get the data of the log */
			$data = $this->_getLogData($type);

			/*
			* actually this info has no state.
			* maybe someone knows better...???...
			*/
			$state = 'no_state';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorFreshClamLog() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'log_freshclam';

			/* Get the data of the log */
			$data = $this->_getLogData($type);

			/* Get the data from the LAST log-Entry.
			* if there can be found:
			* WARNING: Your ClamAV installation is OUTDATED!
			* then the clamav is outdated. This is a warning!
			*/
			$state = 'ok';

			$tmp = explode("\n", $data);
			$lastLog = array();
			if ($tmp[sizeof($tmp) - 1] == '') {
			/* the log ends with an empty line remove this */
			array_pop($tmp);
			}
			if (strpos($tmp[sizeof($tmp) - 1], '-------------') !== false) {
			/* the log ends with "-----..." remove this */
			array_pop($tmp);
			}
			for ($i = sizeof($tmp) - 1; $i > 0; $i--) {
			if (strpos($tmp[$i], '---------') === false) {
			/* no delimiter found, so add this to the last-log */
			$lastLog[] = $tmp[$i];
			} else {
			/* delimiter found, so there is no more line left! */
			break;
			}
			}

			/*
			* Now we have the last log in the array.
			* Check if the outdated-string is found...
			*/
			foreach ($lastLog as $line) {
			if (strpos(strtolower($line), 'outdated') !== false) {
			/*
			* Outdatet is only info, because if we set this to warning, the server is
			* as long in state warning, as there is a new version of ClamAv which takes
			* sometimes weeks!
			*/
			$state = $this->_setState($state, 'info');
			}
			}

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorClamAvLog() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'log_clamav';

			/* Get the data of the log */
			$data = $this->_getLogData($type);

			// Todo: the state should be calculated.
			$state = 'ok';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function monitorIspConfigLog() {
			global $app;
			global $conf;

			/* the id of the server as int */
			$server_id = intval($conf['server_id']);

			/** The type of the data */
			$type = 'log_ispconfig';

			/* Get the data of the log */
			$data = $this->_getLogData($type);

			// Todo: the state should be calculated.
			$state = 'ok';

			/*
			Insert the data into the database
			*/
			$sql = 'INSERT INTO monitor_data (server_id, type, created, data, state) ' .
			'VALUES (' .
			$server_id . ', ' .
			"'" . $app->dbmaster->quote($type) . "', " .
			time() . ', ' .
			"'" . $app->dbmaster->quote(serialize($data)) . "', " .
			"'" . $state . "'" .
			')';
			$app->dbmaster->query($sql);

			/* The new data is written, now we can delete the old one */
			$this->_delOldRecords($type, 4);
			}

			function _getLogData($log) {
			global $conf;

			$dist = '';
			$logfile = '';

			if (@is_file('/etc/debian_version')) {
			$dist = 'debian';
			} elseif (@is_file('/etc/redhat-release')) {
			$dist = 'redhat';
			} elseif (@is_file('/etc/SuSE-release')) {
			$dist = 'suse';
			} elseif (@is_file('/etc/gentoo-release')) {
			$dist = 'gentoo';
			}

			switch ($log) {
			case 'log_mail':
			if ($dist == 'debian') {
			$logfile = '/var/log/mail.log';
			} elseif ($dist == 'redhat') {
			$logfile = '/var/log/maillog';
			} elseif ($dist == 'suse') {
			$logfile = '/var/log/mail.info';
			} elseif ($dist == 'gentoo') {
			$logfile = '/var/log/maillog';
			}
			break;
			case 'log_mail_warn':
			if ($dist == 'debian') {
			$logfile = '/var/log/mail.warn';
			} elseif ($dist == 'redhat') {
			$logfile = '/var/log/maillog';
			} elseif ($dist == 'suse') {
			$logfile = '/var/log/mail.warn';
			} elseif ($dist == 'gentoo') {
			$logfile = '/var/log/maillog';
			}
			break;
			case 'log_mail_err':
			if ($dist == 'debian') {
			$logfile = '/var/log/mail.err';
			} elseif ($dist == 'redhat') {
			$logfile = '/var/log/maillog';
			} elseif ($dist == 'suse') {
			$logfile = '/var/log/mail.err';
			} elseif ($dist == 'gentoo') {
			$logfile = '/var/log/maillog';
			}
			break;
			case 'log_messages':
			if ($dist == 'debian') {
			$logfile = '/var/log/messages';
			} elseif ($dist == 'redhat') {
			$logfile = '/var/log/messages';
			} elseif ($dist == 'suse') {
			$logfile = '/var/log/messages';
			} elseif ($dist == 'gentoo') {
			$logfile = '/var/log/messages';
			}
			break;
			case 'log_ispc_cron':
			if ($dist == 'debian') {
			$logfile = $conf['ispconfig_log_dir'] . '/cron.log';
			} elseif ($dist == 'redhat') {
			$logfile = $conf['ispconfig_log_dir'] . '/cron.log';
			} elseif ($dist == 'suse') {
			$logfile = $conf['ispconfig_log_dir'] . '/cron.log';
			} elseif ($dist == 'gentoo') {
			$logfile = '/var/log/cron';
			}
			break;
			case 'log_freshclam':
			if ($dist == 'debian') {
			$logfile = '/var/log/clamav/freshclam.log';
			} elseif ($dist == 'redhat') {
			$logfile = (is_file('/var/log/clamav/freshclam.log') ? '/var/log/clamav/freshclam.log' : '/var/log/freshclam.log');
			} elseif ($dist == 'suse') {
			$logfile = '/var/log/freshclam.log';
			} elseif ($dist == 'gentoo') {
			$logfile = '/var/log/clamav/freshclam.log';
			}
			break;
			case 'log_clamav':
			if ($dist == 'debian') {
			$logfile = '/var/log/clamav/clamav.log';
			} elseif ($dist == 'redhat') {
			$logfile = (is_file('/var/log/clamav/clamd.log') ? '/var/log/clamav/clamd.log' : '/var/log/maillog');
			} elseif ($dist == 'suse') {
			$logfile = '/var/log/clamd.log';
			} elseif ($dist == 'gentoo') {
			$logfile = '/var/log/clamav/clamd.log';
			}
			break;
			case 'log_fail2ban':
			if ($dist == 'debian') {
			$logfile = '/var/log/fail2ban.log';
			} elseif ($dist == 'redhat') {
			$logfile = '/var/log/fail2ban.log';
			} elseif ($dist == 'suse') {
			$logfile = '/var/log/fail2ban.log';
			} elseif ($dist == 'gentoo') {
			$logfile = '/var/log/fail2ban.log';
			}
			break;
			case 'log_ispconfig':
			if ($dist == 'debian') {
			$logfile = $conf['ispconfig_log_dir'] . '/ispconfig.log';
			} elseif ($dist == 'redhat') {
			$logfile = $conf['ispconfig_log_dir'] . '/ispconfig.log';
			} elseif ($dist == 'suse') {
			$logfile = $conf['ispconfig_log_dir'] . '/ispconfig.log';
			} elseif ($dist == 'gentoo') {
			$logfile = $conf['ispconfig_log_dir'] . '/ispconfig.log';
			}
			break;
			default:
			$logfile = '';
			break;
			}

			// Getting the logfile content
			if ($logfile != '') {
			$logfile = escapeshellcmd($logfile);
			if (stristr($logfile, ';') or substr($logfile, 0, 9) != '/var/log/' or stristr($logfile, '..')) {
			$log = 'Logfile path error.';
			} else {
			$log = '';
			if (is_readable($logfile)) {
			if ($fd = popen('tail -n 100 ' . $logfile, 'r')) {
			while (!feof($fd)) {
			$log .= fgets($fd, 4096);
			$n++;
			if ($n > 1000)
			break;
			}
			fclose($fd);
			}
			} else {
			$log = 'Unable to read ' . $logfile;
			}
			}
			}

			return $log;
			}

			function _checkTcp($host, $port) {

			$fp = @fsockopen($host, $port, $errno, $errstr, 2);

			if ($fp) {
			fclose($fp);
			return true;
			} else {
			return false;
			}
			}

			function _checkUdp($host, $port) {

			$fp = @fsockopen('udp://' . $host, $port, $errno, $errstr, 2);

			if ($fp) {
			fclose($fp);
			return true;
			} else {
			return false;
			}
			}

			function _checkFtp($host, $port) {

			$conn_id = @ftp_connect($host, $port);

			if ($conn_id) {
			@ftp_close($conn_id);
			return true;
			} else {
			return false;
			}
			}

			/*
			Deletes Records older than n.
			*/

			function _delOldRecords($type, $min, $hour=0, $days=0) {
			global $app;

			$now = time();
			$old = $now - ($min * 60) - ($hour * 60 * 60) - ($days * 24 * 60 * 60);
			$sql = 'DELETE FROM monitor_data ' .
			'WHERE ' .
			'type =' . "'" . $app->dbmaster->quote($type) . "' " .
			'AND ' .
			'created < ' . $old;
			$app->dbmaster->query($sql);
			}

			/*
			* Set the state to the given level (or higher, but not lesser).
			* * If the actual state is critical and you call the method with ok,
			* then the state is critical.
			*
			* * If the actual state is critical and you call the method with error,
			* then the state is error.
			*/

			function _setState($oldState, $newState) {
			/*
			* Calculate the weight of the old state
			*/
			switch ($oldState) {
			case 'no_state': $oldInt = 0;
			break;
			case 'ok': $oldInt = 1;
			break;
			case 'unknown': $oldInt = 2;
			break;
			case 'info': $oldInt = 3;
			break;
			case 'warning': $oldInt = 4;
			break;
			case 'critical': $oldInt = 5;
			break;
			case 'error': $oldInt = 6;
			break;
			}
			/*
			* Calculate the weight of the new state
			*/
			switch ($newState) {
			case 'no_state': $newInt = 0;
			break;
			case 'ok': $newInt = 1;
			break;
			case 'unknown': $newInt = 2;
			break;
			case 'info': $newInt = 3;
			break;
			case 'warning': $newInt = 4;
			break;
			case 'critical': $newInt = 5;
			break;
			case 'error': $newInt = 6;
			break;
			}

			/*
			* Set to the higher level
			*/
			if ($newInt > $oldInt) {
			return $newState;
			} else {
			return $oldState;
			}
			}

			function _getIntArray($line) {
			/** The array of float found */
			$res = array();
			/* First build a array from the line */
			$data = explode(' ', $line);
			/* then check if any item is a float */
			foreach ($data as $item) {
			if ($item . '' == (int) $item . '') {
			$res[] = $item;
			}
			}
			return $res;
			}


			// if you need to find all restarts search for "['init_scripts']"
			}

			?>