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Created: Thu, Sep 25, 10:35 PM

system_log_eh.php
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	<?php
	/**
	* @version $Id: system_log_eh.php 16519 2017-01-20 20:21:46Z alex $
	* @package In-Portal
	* @copyright Copyright (C) 1997 - 2012 Intechnic. All rights reserved.
	* @license GNU/GPL
	* In-Portal is Open Source software.
	* This means that this software may have been modified pursuant
	* the GNU General Public License, and as distributed it includes
	* or is derivative of works licensed under the GNU General Public License
	* or other free or open source software licenses.
	* See http://www.in-portal.org/license for copyright notices and details.
	*/

	defined('FULL_PATH') or die('restricted access!');

	class SystemLogEventHandler extends kDBEventHandler {

	/**
	* Filters messages, that require e-mail notification to be sent
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function SetCustomQuery(kEvent $event)
	{
	parent::SetCustomQuery($event);

	/** @var kDBList $object */
	$object = $event->getObject();

	if ( $event->Special == 'email' ) {
	$unique_id = $event->getEventParam('unique_id');

	if ( $unique_id !== false ) {
	$object->addFilter('notification_filter', '%1$s.LogNotificationStatus = ' . kLogger::LNS_SENT);
	$object->addFilter('unique_filter', '%1$s.LogUniqueId = ' . $unique_id);
	}
	else {
	$object->addFilter('notification_filter', '%1$s.LogNotificationStatus = ' . kLogger::LNS_PENDING);
	}
	}
	}

	/**
	* [SCHEDULED TASK] Sends delayed notification of system log messages
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnSendNotifications(kEvent $event)
	{
	// initialize list outside of e-mail event with right settings
	/** @var kDBList $list */
	$list = $this->Application->recallObject($event->Prefix . '.email', $event->Prefix . '_List', Array ('per_page' => 20));

	if ( !$list->GetRecordsCount() ) {
	// no messages, that needs to be sent
	return;
	}

	$notification_email = $this->Application->ConfigValue('SystemLogNotificationEmail');

	if ( !$notification_email ) {
	$this->Application->removeObject($event->Prefix . '.email');
	trigger_error('System Log notification E-mail not specified', E_USER_NOTICE);

	return;
	}

	$send_params = Array (
	'to_name' => $notification_email,
	'to_email' => $notification_email,
	);

	$this->Application->emailAdmin('SYSTEM.LOG.NOTIFY', null, $send_params);
	$this->Application->removeObject($event->Prefix . '.email');

	/** @var kDBItem $object */
	$object = $event->getObject(Array ('skip_autoload' => true));

	foreach ($list as $fields_hash) {
	$object->LoadFromHash($fields_hash);
	$object->SetDBField('LogNotificationStatus', kLogger::LNS_SENT);
	$object->Update();
	}
	}

	/**
	* [SCHEDULED TASK] Will remove old system logs
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnRotate(kEvent $event)
	{
	$rotation_interval = (int)$this->Application->ConfigValue('SystemLogRotationInterval');

	if ( $rotation_interval === -1 ) {
	// forever
	return;
	}

	$config = $event->getUnitConfig();

	$sql = 'SELECT ' . $config->getIDField() . '
	FROM ' . $config->getTableName() . '
	WHERE ' . TIMENOW . ' - LogTimestamp > ' . $rotation_interval . '
	LIMIT 0,50';
	$ids = $this->Conn->GetCol($sql);

	if ( $ids ) {
	/** @var kTempTablesHandler $temp_handler */
	$temp_handler = $this->Application->recallObject($event->getPrefixSpecial() . '_TempHandler', 'kTempTablesHandler', Array ('parent_event' => $event));

	$temp_handler->DeleteItems($event->Prefix, $event->Special, $ids);
	}
	}
	}

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