gitlabFork/ISPConfig3.git - Solinfo Gitblit

			@@ -1,6 +1,6 @@
			<?php
			/*
			Copyright (c) 2007-2008, Till Brehm, projektfarm Gmbh and Oliver Vogel www.muv.com
			Copyright (c) 2007-2010, Till Brehm, projektfarm Gmbh, Oliver Vogel www.muv.com
			All rights reserved.

			Redistribution and use in source and binary forms, with or without modification,
			@@ -28,1438 +28,19 @@
			*/

			class monitor_core_module {
			/* TODO: this should be a config - var instead of a "constant" */
			var $interval = 5; // do the monitoring every 5 minutes
			var $module_name = 'remoteaction_core_module';
			var $class_name = 'remoteaction_core_module';
			var $actions_available = array();

			var $module_name = 'monitor_core_module';
			var $class_name = 'monitor_core_module';
			/* No actions at this time. maybe later... */
			var $actions_available = 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;

			return false;
			}

			/*
			This function is called when the module is loaded
			*/
			function onLoad() {
			global $app;

			/*
			Annonce the actions that where provided by this module, so plugins
			can register on them.
			*/
			/* none at them moment */
			//$app->plugins->announceEvents($this->module_name,$this->actions_available);
			function onLoad() {
			}

			/*
			As we want to get notified of any changes on several database tables,
			we register for them.

			The following function registers the function "functionname"
			to be executed when a record for the table "dbtable" is
			processed in the sys_datalog. "classname" is the name of the
			class that contains the function functionname.
			*/
			/* none at them moment */
			//$app->modules->registerTableHook('mail_access','mail_module','process');

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

			/*
			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) {
			// global $app;
			//
			// switch ($tablename) {
			// case 'mail_access':
			// if($action == 'i') $app->plugins->raiseEvent('mail_access_insert',$data);
			// if($action == 'u') $app->plugins->raiseEvent('mail_access_update',$data);
			// if($action == 'd') $app->plugins->raiseEvent('mail_access_delete',$data);
			// break;
			// } // end switch
			} // end function

			/*
			This method is called every n minutes, when the module ist loaded.
			The method then does a system-monitoring
			*/
			// TODO: what monitoring is done should be a config-var
			function doMonitor()
			{
			/* Calls the single Monitoring steps */
			$this->monitorServer();
			$this->monitorDiskUsage();
			$this->monitorMemUsage();
			$this->monitorCpu();
			$this->monitorServices();
			$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 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]);

			/* Old Load Average Code
			$loadTmp = explode(":" , trim($tmp[3]));
			$load = explode(",", $loadTmp[1]);
			$data['load_1'] = floatval(trim($load[0]));
			$data['load_5'] = floatval(trim($load[1]));
			$data['load_15'] = floatval(trim($load[2])); */

			//* 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, 10);
			}

			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 a 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 dont want to check the cdrom drive as a cd / dvd is always 100% full
			if($data[$i]['type'] != 'iso9660' && $data[$i]['type'] != 'cramfs' && $data[$i]['type'] != 'udf') {
			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');
			}
			}
			}


			/*
			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, 10);
			}


			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, 10);
			}


			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
			*/
			$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';

			/*
			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, 10);
			}


			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 aktive 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, 10);
			}


			function monitorSystemUpdate(){
			/*
			* This monitoring is expensive, so do it only once a hour
			*/
			$min = date('i');
			if ($min != 0) return;

			/*
			* OK - here we go...
			*/
			global $app;
			global $conf;

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

			/*
			* first update the "update-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! */
			$state = 'warning';
			}

			/*
			* 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
			*/
			$emergeData = shell_exec('emerge -puDNt --color n --nospinner --quiet world');
			if ($emergeData == '')
			{
			/* There is nothing to update! */
			$state = 'ok';
			}
			else
			{
			/* There is something to update! */
			$state = 'warning';
			}

			/*
			* Fetch the output
			*/
			$data['output'] = shell_exec('emerge -pvuDNt --color n --nospinner world');
			}
			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']= '';
			}

			/*
			* 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, 0, 2);
			}

			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, 10);
			}


			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';

			/* This monitoring is only available if mdadm is installed */
			$location = system('which mdadm', $retval);
			if($retval === 0){
			/*
			* 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');
			}
			}
			}

			}
			else {
			/*
			* mdadm 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']= '';
			}

			/*
			* 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, 10);
			}

			function monitorRkHunter(){
			/*
			* This monitoring is expensive, so do it only once a day
			*/
			$min = date('i');
			$hour = date('H');
			if (!($min == 0 && $hour == 23)) 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 */
			$location = system('which rkhunter', $retval);
			if($retval === 0){
			/*
			* Fetch the output
			*/
			$data['output'] = shell_exec('rkhunter --update --checkall --nocolors --skip-keypress');

			/*
			* At this moment, there is no state (maybe later)
			*/
			$state = 'no_state';
			}
			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']= '';
			}

			/*
			* 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, 0, 2);
			}

			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 */
			$location = system('which fail2ban-client', $retval); // Debian, Ubuntu, Fedora
			if($retval !== 0) $location = 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, 10);
			}

			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, 10);
			}

			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, 10);
			}

			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, 10);
			}

			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, 10);
			}


			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, 10);
			}

			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, 10);
			}

			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) {
			$state = $this->_setState($state, 'warning');
			}
			}

			/*
			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, 10);
			}

			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, 10);
			}

			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, 10);
			}


			function _getLogData($log){

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

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

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


			} // end class
			function process() {
			}
			}

			?>