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Diffstat (limited to '')
| -rw-r--r-- | BSF/include/functions_session.inc.php | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/BSF/include/functions_session.inc.php b/BSF/include/functions_session.inc.php deleted file mode 100644 index f17f2377a..000000000 --- a/BSF/include/functions_session.inc.php +++ /dev/null @@ -1,225 +0,0 @@ -<?php -// +-----------------------------------------------------------------------+ -// | Piwigo - a PHP based picture gallery | -// +-----------------------------------------------------------------------+ -// | Copyright(C) 2008 Piwigo Team http://piwigo.org | -// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net | -// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick | -// +-----------------------------------------------------------------------+ -// | This program is free software; you can redistribute it and/or modify | -// | it under the terms of the GNU General Public License as published by | -// | the Free Software Foundation | -// | | -// | This program is distributed in the hope that it will be useful, but | -// | WITHOUT ANY WARRANTY; without even the implied warranty of | -// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | -// | General Public License for more details. | -// | | -// | You should have received a copy of the GNU General Public License | -// | along with this program; if not, write to the Free Software | -// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | -// | USA. | -// +-----------------------------------------------------------------------+ - -// The function generate_key creates a string with pseudo random characters. -// the size of the string depends on the $conf['session_id_size']. -// Characters used are a-z A-Z and numerical values. Examples : -// "Er4Tgh6", "Rrp08P", "54gj" -// input : none (using global variable) -// output : $key -function generate_key($size) -{ - global $conf; - - $md5 = md5(substr(microtime(), 2, 6)); - $init = ''; - for ( $i = 0; $i < strlen( $md5 ); $i++ ) - { - if ( is_numeric( $md5[$i] ) ) $init.= $md5[$i]; - } - $init = substr( $init, 0, 8 ); - mt_srand( $init ); - $key = ''; - for ( $i = 0; $i < $size; $i++ ) - { - $c = mt_rand( 0, 2 ); - if ( $c == 0 ) $key .= chr( mt_rand( 65, 90 ) ); - else if ( $c == 1 ) $key .= chr( mt_rand( 97, 122 ) ); - else $key .= mt_rand( 0, 9 ); - } - return $key; -} - -if (isset($conf['session_save_handler']) - and ($conf['session_save_handler'] == 'db') - and defined('PHPWG_INSTALLED')) -{ - session_set_save_handler('pwg_session_open', - 'pwg_session_close', - 'pwg_session_read', - 'pwg_session_write', - 'pwg_session_destroy', - 'pwg_session_gc' - ); - if ( function_exists('ini_set') ) - { - ini_set('session.use_cookies', $conf['session_use_cookies']); - ini_set('session.use_only_cookies', $conf['session_use_only_cookies']); - ini_set('session.use_trans_sid', intval($conf['session_use_trans_sid'])); - } - session_name($conf['session_name']); - session_set_cookie_params(0, cookie_path()); -} - -/** - * returns true; used when the session_start() function is called - * - * @params not use but useful for php engine - */ -function pwg_session_open($path, $name) -{ - return true; -} - -/** - * returns true; used when the session is closed (unset($_SESSION)) - * - */ -function pwg_session_close() -{ - return true; -} - -/** - * this function returns - * a string corresponding to the value of the variable save in the session - * or an empty string when the variable doesn't exist - * - * @param string session id - */ -function pwg_session_read($session_id) -{ - $query = ' -SELECT data - FROM '.SESSIONS_TABLE.' - WHERE id = \''.$session_id.'\' -;'; - $result = pwg_query($query); - if ($result) - { - $row = mysql_fetch_assoc($result); - return $row['data']; - } - else - { - return ''; - } -} - -/** - * returns true; writes set a variable in the active session - * - * @param string session id - * @data string value of date to be saved - */ -function pwg_session_write($session_id, $data) -{ - $query = ' -UPDATE '.SESSIONS_TABLE.' - SET expiration = now(), - data = \''.$data.'\' - WHERE id = \''.$session_id.'\' -;'; - pwg_query($query); - if ( mysql_affected_rows()>0 ) - { - return true; - } - $query = ' -INSERT INTO '.SESSIONS_TABLE.' - (id,data,expiration) - VALUES(\''.$session_id.'\',\''.$data.'\',now()) -;'; - mysql_query($query); - return true; -} - -/** - * returns true; delete the active session - * - * @param string session id - */ -function pwg_session_destroy($session_id) -{ - $query = ' -DELETE - FROM '.SESSIONS_TABLE.' - WHERE id = \''.$session_id.'\' -;'; - pwg_query($query); - return true; -} - -/** - * returns true; delete expired sessions - * called each time a session is closed. - */ -function pwg_session_gc() -{ - global $conf; - - $query = ' -DELETE - FROM '.SESSIONS_TABLE.' - WHERE UNIX_TIMESTAMP(NOW()) - UNIX_TIMESTAMP(expiration) > ' - .$conf['session_length'].' -;'; - pwg_query($query); - return true; -} - - -/** - * persistently stores a variable for the current session - * currently we use standard php sessions but it might change - * @return boolean true on success - * @see pwg_get_session_var, pwg_unset_session_var - */ -function pwg_set_session_var($var, $value) -{ - if ( !isset($_SESSION) ) - return false; - $_SESSION['pwg_'.$var] = $value; - return true; -} - -/** - * retrieves the value of a persistent variable for the current session - * currently we use standard php sessions but it might change - * @return mixed - * @see pwg_set_session_var, pwg_unset_session_var - */ -function pwg_get_session_var($var, $default = null) -{ - if (isset( $_SESSION['pwg_'.$var] ) ) - { - return $_SESSION['pwg_'.$var]; - } - return $default; -} - -/** - * deletes a persistent variable for the current session - * currently we use standard php sessions but it might change - * @return boolean true on success - * @see pwg_set_session_var, pwg_get_session_var - */ -function pwg_unset_session_var($var) -{ - if ( !isset($_SESSION) ) - return false; - unset( $_SESSION['pwg_'.$var] ); - return true; -} - -?> |