Version 4.0.13.1

applications/nexus/tasks/monitor.php

@@ -0,0 +1,131 @@
+<?php
+/**
+ * @brief		Server Monitoring Task
+ * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
+ * @copyright	(c) 2001 - SVN_YYYY Invision Power Services, Inc.
+ * @license		http://www.invisionpower.com/legal/standards/
+ * @package		IPS Social Suite
+ * @subpackage	nexus
+ * @since		07 Aug 2014
+ * @version		SVN_VERSION_NUMBER
+ */
+
+namespace IPS\nexus\tasks;
+
+/* To prevent PHP errors (extending class does not exist) revealing path */
+if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
+{
+	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
+	exit;
+}
+
+/**
+ * Server Monitoring Task
+ */
+class _monitor extends \IPS\Task
+{
+	/**
+	 * Execute
+	 *
+	 * If ran successfully, should return anything worth logging. Only log something
+	 * worth mentioning (don't log "task ran successfully"). Return NULL (actual NULL, not '' or 0) to not log (which will be most cases).
+	 * If an error occurs which means the task could not finish running, throw an \IPS\Task\Exception - do not log an error as a normal log.
+	 * Tasks should execute within the time of a normal HTTP request.
+	 *
+	 * @return	mixed	Message to log or NULL
+	 * @throws	\IPS\Task\Exception
+	 */
+	public function execute()
+	{
+		if ( \IPS\Settings::i()->monitoring_script )
+		{
+			/* Init */
+			$url = \IPS\Http\Url::external( \IPS\Settings::i()->monitoring_script )->setQueryString( 'notify', base64_encode( \IPS\Settings::i()->monitoring_alert ) );
+			if ( \IPS\Settings::i()->monitoring_backup )
+			{
+				$backupUrl = \IPS\Http\Url::external( \IPS\Settings::i()->monitoring_backup )->setQueryString( 'notify', base64_encode( \IPS\Settings::i()->monitoring_alert ) );
+			}
+								
+			/* Loop Servers */	
+			foreach ( new \IPS\Patterns\ActiveRecordIterator( \IPS\Db::i()->select( '*', 'nexus_hosting_servers', "server_monitor<>'' AND server_monitor_acknowledged=0" ), 'IPS\nexus\Hosting\Server' ) as $server )
+			{				
+				/* Make the call */
+				$response = NULL;
+				try
+				{
+					$response = $url->setQueryString( 'check', $server->monitor )->request()->get();
+					
+					if ( $response == 'FAIL' or mb_strstr( $response, 'SUCCESS' ) === FALSE and \IPS\Settings::i()->monitoring_backup )
+					{
+						throw new \IPS\Http\Request\Exception;
+					}
+				}
+				catch ( \IPS\Http\Request\Exception $e )
+				{
+					if ( \IPS\Settings::i()->monitoring_backup )
+					{
+						try
+						{
+							$response = $backupUrl->setQueryString( 'check', $server->monitor )->request()->get();
+						}
+						catch ( \IPS\Http\Request\Exception $e ) { }
+					}
+				}
+				
+				/* If it's online... */
+				if ( $response and $response != 'FAIL' and mb_strstr( $response, 'SUCCESS' ) !== FALSE )
+				{
+                    $exploded = explode( "\n", $response );
+
+                    /* If we previously sent an offline email, we can now send a "back online" one */
+					if ( $server->monitor_fails > \IPS\Settings::i()->monitoring_allowed_fails )
+					{
+						$server->monitoringOnline( $exploded[1] );
+					}
+					
+					/* Update Server */
+					$server->monitor_fails = 0;
+					$server->monitor_acknowledged = 0;
+					$server->monitor_last_sucess = time();
+					$server->monitor_version = $exploded[1];
+					$server->save();
+				}
+				
+				/* If it's offline... */
+				else
+				{
+					$server->monitor_fails++;
+					$server->save();
+					
+					if ( $server->monitor_fails == ( intval( \IPS\Settings::i()->monitoring_allowed_fails ) + 1 ) )
+					{
+						$server->monitoringOffline();
+					}
+					elseif ( $server->monitor_fails == intval( \IPS\Settings::i()->monitoring_allowed_fails ) and !$server->monitor_acknowledged )
+					{
+						$server->monitoringPanic();
+					}
+				}
+			}
+		}
+		else
+		{
+			\IPS\DB::i()->update( 'core_tasks', array( 'enabled' => 0 ), array( '`key`=?', 'monitor' ) );
+		}
+		return NULL;
+	}
+	
+	/**
+	 * Cleanup
+	 *
+	 * If your task takes longer than 15 minutes to run, this method
+	 * will be called before execute(). Use it to clean up anything which
+	 * may not have been done
+	 *
+	 * @return	void
+	 */
+	public function cleanup()
+	{
+		
+	}
+}