mirror of
https://github.com/Piwigo/Piwigo.git
synced 2026-03-28 17:42:57 +01:00
160 lines
4.2 KiB
PHP
160 lines
4.2 KiB
PHP
<?php
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// +-----------------------------------------------------------------------+
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// | PhpWebGallery - a PHP based picture gallery |
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// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
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// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
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// +-----------------------------------------------------------------------+
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// | branch : BSF (Best So Far)
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// | file : $RCSfile$
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// | last update : $Date$
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// | last modifier : $Author$
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// | revision : $Revision$
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// +-----------------------------------------------------------------------+
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// | This program is free software; you can redistribute it and/or modify |
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// | it under the terms of the GNU General Public License as published by |
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// | the Free Software Foundation |
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// | |
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// | This program is distributed in the hope that it will be useful, but |
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// | WITHOUT ANY WARRANTY; without even the implied warranty of |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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// | General Public License for more details. |
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// | |
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// | You should have received a copy of the GNU General Public License |
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// | along with this program; if not, write to the Free Software |
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// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
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// | USA. |
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// +-----------------------------------------------------------------------+
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if (isset($conf['session_save_handler'])
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and ($conf['session_save_handler'] == 'db'))
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{
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session_set_save_handler('pwg_session_open',
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'pwg_session_close',
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'pwg_session_read',
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'pwg_session_write',
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'pwg_session_destroy',
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'pwg_session_gc'
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);
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}
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ini_set('session.use_cookies', $conf['session_use_cookies']);
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ini_set('session.use_only_cookies', $conf['session_use_only_cookies']);
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ini_set('session.use_trans_sid', intval($conf['session_use_trans_sid']));
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ini_set('session.name', $conf['session_name']);
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/**
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* returns true; used when the session_start() function is called
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*
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* @params not use but useful for php engine
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*/
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function pwg_session_open($path, $name)
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{
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return true;
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}
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/**
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* returns true; used when the session is closed (unset($_SESSION))
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*
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*/
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function pwg_session_close()
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{
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pwg_session_gc();
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return true;
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}
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/**
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* this function returns
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* a string corresponding to the value of the variable save in the session
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* or an empty string when the variable doesn't exist
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*
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* @param string session id
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*/
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function pwg_session_read($session_id)
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{
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$query = '
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SELECT data
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FROM '.SESSIONS_TABLE.'
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WHERE id = \''.$session_id.'\'
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;';
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$result = pwg_query($query);
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if ($result)
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{
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$row = mysql_fetch_assoc($result);
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return $row['data'];
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}
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else
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{
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return '';
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}
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}
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/**
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* returns true; writes set a variable in the active session
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*
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* @param string session id
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* @data string value of date to be saved
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*/
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function pwg_session_write($session_id, $data)
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{
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$query = '
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SELECT id
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FROM '.SESSIONS_TABLE.'
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WHERE id = \''.$session_id.'\'
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;';
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$result = pwg_query($query);
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if (mysql_num_rows($result))
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{
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$query = '
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UPDATE '.SESSIONS_TABLE.'
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SET expiration = now()
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WHERE id = \''.$session_id.'\'
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;';
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pwg_query($query);
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}
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else
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{
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$query = '
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INSERT INTO '.SESSIONS_TABLE.'
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(id,data,expiration)
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VALUES(\''.$session_id.'\',\''.$data.'\',now())
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;';
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pwg_query($query);
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}
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return true;
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}
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/**
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* returns true; delete the active session
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*
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* @param string session id
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*/
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function pwg_session_destroy($session_id)
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{
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$query = '
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DELETE
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FROM '.SESSIONS_TABLE.'
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WHERE id = \''.$session_id.'\'
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;';
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pwg_query($query);
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return true;
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}
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/**
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* returns true; delete expired sessions
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* called each time a session is closed.
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*/
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function pwg_session_gc()
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{
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global $conf;
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$query = '
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DELETE
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FROM '.SESSIONS_TABLE.'
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WHERE UNIX_TIMESTAMP(NOW()) - UNIX_TIMESTAMP(expiration) > '
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.$conf['session_length'].'
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;';
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pwg_query($query);
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return true;
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}
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?>
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