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Created: Sat, Sep 20, 4:48 PM

session_log_eh.php
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	<?php
	/**
	* @version $Id: session_log_eh.php 15569 2012-10-10 13:29:39Z alex $
	* @package In-Portal
	* @copyright Copyright (C) 1997 - 2009 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 SessionLogEventHandler extends kDBEventHandler {

	/**
	* Opens log for new session
	*
	* @param kEvent $event
	*/
	function OnStartSession($event)
	{
	if (!$this->Application->ConfigValue('UseChangeLog')) {
	// don't use session log when change log is disabled
	return ;
	}

	$object = $this->Application->recallObject($event->Prefix, null, Array ('skip_autoload' => 1));
	/* @var $object kDBItem */

	$fields_hash = Array (
	'SessionStart' => adodb_mktime(),
	'IP' => $this->Application->getClientIp(),
	'PortalUserId' => $this->Application->RecallVar('user_id'),
	'SessionId' => $this->Application->GetSID(),
	'Status' => SESSION_LOG_ACTIVE,
	);

	$object->SetDBFieldsFromHash($fields_hash);

	$object->UpdateFormattersSubFields();

	if ($object->Create()) {
	$this->Application->StoreVar('_SessionLogId_', $object->GetID());
	}
	}

	/**
	* Closes log for current session
	*
	* @param kEvent $event
	*/
	function OnEndSession($event)
	{
	$object = $this->Application->recallObject($event->Prefix, null, Array ('skip_autoload' => 1));
	/* @var $object kDBItem */

	$object->Load($this->Application->RecallVar('_SessionLogId_'));
	if (!$object->isLoaded()) {
	return ;
	}

	$fields_hash = Array (
	'SessionEnd' => adodb_mktime(),
	'Status' => SESSION_LOG_LOGGED_OUT,
	);

	$object->SetDBFieldsFromHash($fields_hash);

	$object->UpdateFormattersSubFields();
	$object->Update();
	}

	/**
	* Apply custom processing to item
	*
	* @param kEvent $event
	* @param string $type
	* @return void
	* @access protected
	*/
	protected function customProcessing(kEvent $event, $type)
	{
	if ( $event->Name == 'OnMassDelete' && $type == 'before' ) {
	$ids = $event->getEventParam('ids');
	if ( $ids ) {
	$id_field = $this->Application->getUnitOption($event->Prefix, 'IDField');
	$table_name = $this->Application->getUnitOption($event->Prefix, 'TableName');

	$sql = 'SELECT ' . $id_field . '
	FROM ' . $table_name . '
	WHERE ' . $id_field . ' IN (' . implode(',', $ids) . ') AND Status <> ' . SESSION_LOG_ACTIVE;
	$allowed_ids = $this->Conn->GetCol($sql);

	$event->setEventParam('ids', $allowed_ids);
	}
	}
	}

	/**
	* Delete changes, related to deleted session
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnAfterItemDelete(kEvent $event)
	{
	parent::OnAfterItemDelete($event);

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

	$sql = 'SELECT ' . $this->Application->getUnitOption('change-log', 'IDField') . '
	FROM ' . $this->Application->getUnitOption('change-log', 'TableName') . '
	WHERE SessionLogId = ' . $object->GetID();
	$related_ids = $this->Conn->GetCol($sql);

	if ( $related_ids ) {
	$temp_handler = $this->Application->recallObject('change-log_TempHandler', 'kTempTablesHandler');
	/* @var $temp_handler kTempTablesHandler */

	$temp_handler->DeleteItems('change-log', '', $related_ids);
	}
	}

	}

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