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Created: Sat, Feb 1, 5:15 AM

inp_session.php
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	<?php
	/**
	* @version $Id: inp_session.php 12970 2009-12-22 11:02:37Z 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 InpSession extends Session
	{
	function Init($prefix, $special)
	{
	$this->SessionTimeout = $this->Application->ConfigValue('SessionTimeout');

	$path = (BASE_PATH == '') ? '/' : BASE_PATH;
	$this->SetCookiePath($path);

	$cookie_name = $this->Application->ConfigValue('SessionCookieName');
	if (!$cookie_name) {
	$cookie_name = 'sid';
	}

	$admin_session = ($this->Application->isAdmin && $special !== 'front') \|\| ($special == 'admin');

	if ($admin_session) {
	$cookie_name = 'adm_' . $cookie_name;
	}

	$this->SetCookieName($cookie_name);

	$this->SetCookieDomain(SERVER_NAME);

	if ($admin_session) {
	$mode = smAUTO;
	}
	elseif (defined('IS_INSTALL') && IS_INSTALL) {
	$mode = smCOOKIES_ONLY;
	}
	else {
	$ses_mode = $this->Application->ConfigValue('CookieSessions');

	if ($ses_mode == 2) $mode = smAUTO;
	if ($ses_mode == 1) $mode = smCOOKIES_ONLY;
	if ($ses_mode == 0) $mode = smGET_ONLY;
	}

	$this->SetMode($mode);

	parent::Init($prefix, $special);

	if (!$this->Application->isAdmin && $this->GetField('PortalUserId') <= 0) {
	$group_list = $this->Application->ConfigValue('User_GuestGroup').','.$this->Application->ConfigValue('User_LoggedInGroup');
	$this->SetField('GroupId', $this->Application->ConfigValue('User_GuestGroup'));
	$this->SetField('GroupList', $group_list);
	}
	}

	function Destroy()
	{
	$this->Storage->DeleteSession($this);
	$this->Storage->DeleteEditTables();
	$this->Data = new Params();
	$this->SID = $this->CachedSID = '';

	if ($this->CookiesEnabled) {
	$this->SetSessionCookie(); //will remove the cookie due to value (sid) is empty
	}

	$this->SetSession(); //will create a new session
	}

	}

	class InpSessionStorage extends SessionStorage {

	function Init($prefix,$special)
	{
	parent::Init($prefix,$special);
	$this->setTableName(TABLE_PREFIX.'UserSession');
	$this->SessionDataTable = TABLE_PREFIX.'SessionData';
	$this->setIDField('SessionKey');
	$this->TimestampField = 'LastAccessed';
	$this->DataValueField = 'VariableValue';
	$this->DataVarField = 'VariableName';
	}

	function LocateSession($sid)
	{
	$res = parent::LocateSession($sid);
	if ($res) {
	$this->Expiration += $this->SessionTimeout;
	}
	return $res;
	}

	function UpdateSession(&$session)
	{
	$time = adodb_mktime();
	// Update LastAccessed only if it's newer than 1/10 of session timeout - perfomance optimization to eliminate needless updates on every click
	// if ($time - $this->DirectVars['LastAccessed'] > $this->SessionTimeout/10) {
	$this->SetField($session, $this->TimestampField, $time + $this->SessionTimeout);
	// }
	}


	function StoreSession(&$session, $additional_fields = Array())
	{
	$fields_hash = Array (
	'PortalUserId' => $this->Application->isAdmin ? 0 : -2, // Guest
	'Language' => $this->Application->GetDefaultLanguageId(true),
	'Theme' => $this->Application->GetDefaultThemeId(),
	'IpAddress' => $_SERVER['REMOTE_ADDR'], // getenv('REMOTE_ADDR') won't work on IIS, so use $_SERVER instead
	'GroupId' => $this->Application->ConfigValue('User_GuestGroup'),
	'GroupList' => $this->Application->ConfigValue('User_GuestGroup'),
	);

	parent::StoreSession($session, $fields_hash);
	}

	function GetExpiredSIDs()
	{
	$query = ' SELECT '.$this->IDField.' FROM '.$this->TableName.' WHERE '.$this->TimestampField.' < '.(adodb_mktime());
	$ret = $this->Conn->GetCol($query);
	if($ret) {
	$this->DeleteEditTables();
	}
	return $ret;

	}

	function DeleteEditTables()
	{
	$tables = $this->Conn->GetCol('SHOW TABLES');
	$mask_edit_table = '/'.TABLE_PREFIX.'ses_(.)_edit_(.)/';
	$mask_search_table = '/'.TABLE_PREFIX.'ses_(.?)_(.)/';

	$sql='SELECT COUNT(*) FROM '.$this->TableName.' WHERE '.$this->IDField.' = \'%s\'';
	foreach($tables as $table)
	{
	if( preg_match($mask_edit_table,$table,$rets) \|\| preg_match($mask_search_table,$table,$rets) )
	{
	$sid = preg_replace('/(.)_(.)/', '\\1', $rets[1]); // remove popup's wid from sid
	$is_alive = $this->Conn->GetOne( sprintf($sql,$sid) );
	if(!$is_alive) $this->Conn->Query('DROP TABLE IF EXISTS '.$table);
	}
	}
	}
	}

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