کد PHP:
<?php
if ( (PHP_VERSION >= 4.3) && ((bool)ini_get('register_globals') == false) ) { @ini_set('session.bug_compat_42', 1); @ini_set('session.bug_compat_warn', 0); }
if (STORE_SESSIONS == 'mysql') { if (!$SESS_LIFE = get_cfg_var('session.gc_maxlifetime')) { $SESS_LIFE = 1440; }
function _sess_open($save_path, $session_name) { return true; }
function _sess_close() { return true; }
function _sess_read($key) { $value_query = tep_db_query("select value from " . TABLE_SESSIONS . " where sesskey = '" . tep_db_input($key) . "' and expiry > '" . time() . "'"); $value = tep_db_fetch_array($value_query);
if (isset($value['value'])) { return $value['value']; }
return ''; }
function _sess_write($key, $val) { global $SESS_LIFE;
$expiry = time() + $SESS_LIFE; $value = $val;
$check_query = tep_db_query("select count(*) as total from " . TABLE_SESSIONS . " where sesskey = '" . tep_db_input($key) . "'"); $check = tep_db_fetch_array($check_query);
if ($check['total'] > 0) { return tep_db_query("update " . TABLE_SESSIONS . " set expiry = '" . tep_db_input($expiry) . "', value = '" . tep_db_input($value) . "' where sesskey = '" . tep_db_input($key) . "'"); } else { return tep_db_query("insert into " . TABLE_SESSIONS . " values ('" . tep_db_input($key) . "', '" . tep_db_input($expiry) . "', '" . tep_db_input($value) . "')"); } }
function _sess_destroy($key) { return tep_db_query("delete from " . TABLE_SESSIONS . " where sesskey = '" . tep_db_input($key) . "'"); }
function _sess_gc($maxlifetime) { tep_db_query("delete from " . TABLE_SESSIONS . " where expiry < '" . time() . "'");
return true; }
session_set_save_handler('_sess_open', '_sess_close', '_sess_read', '_sess_write', '_sess_destroy', '_sess_gc'); }
function tep_session_start() { global $HTTP_GET_VARS, $HTTP_POST_VARS, $HTTP_COOKIE_VARS;
$sane_session_id = true;
if (isset($HTTP_GET_VARS[tep_session_name()])) { if (preg_match('/^[a-zA-Z0-9]+$/', $HTTP_GET_VARS[tep_session_name()]) == false) { unset($HTTP_GET_VARS[tep_session_name()]);
$sane_session_id = false; } } elseif (isset($HTTP_POST_VARS[tep_session_name()])) { if (preg_match('/^[a-zA-Z0-9]+$/', $HTTP_POST_VARS[tep_session_name()]) == false) { unset($HTTP_POST_VARS[tep_session_name()]);
$sane_session_id = false; } } elseif (isset($HTTP_COOKIE_VARS[tep_session_name()])) { if (preg_match('/^[a-zA-Z0-9]+$/', $HTTP_COOKIE_VARS[tep_session_name()]) == false) { $session_data = session_get_cookie_params();
setcookie(tep_session_name(), '', time()-42000, $session_data['path'], $session_data['domain']);
$sane_session_id = false; } }
if ($sane_session_id == false) { tep_redirect(tep_href_link(FILENAME_DEFAULT, '', 'NONSSL', false)); }
return session_start(); }
function tep_session_register($variable) { global $session_started;
if ($session_started == true) { if (PHP_VERSION < 4.3) { return session_register($variable); } else { if (isset($GLOBALS[$variable])) { $_SESSION[$variable] =& $GLOBALS[$variable]; } else { $_SESSION[$variable] = null; } } }
return false; }
function tep_session_is_registered($variable) { if (PHP_VERSION < 4.3) { return session_is_registered($variable); } else { return isset($_SESSION) && array_key_exists($variable, $_SESSION); } }
function tep_session_unregister($variable) { if (PHP_VERSION < 4.3) { return session_unregister($variable); } else { unset($_SESSION[$variable]); } }
function tep_session_id($sessid = '') { if (!empty($sessid)) { return session_id($sessid); } else { return session_id(); } }
function tep_session_name($name = '') { if (!empty($name)) { return session_name($name); } else { return session_name(); } }
function tep_session_close() { if (PHP_VERSION >= '4.0.4') { return session_write_close(); } elseif (function_exists('session_close')) { return session_close(); } }
function tep_session_destroy() { return session_destroy(); }
function tep_session_save_path($path = '') { if (!empty($path)) { return session_save_path($path); } else { return session_save_path(); } }
function tep_session_recreate() { if (PHP_VERSION >= 4.1) { $session_backup = $_SESSION;
unset($_COOKIE[tep_session_name()]);
tep_session_destroy();
if (STORE_SESSIONS == 'mysql') { session_set_save_handler('_sess_open', '_sess_close', '_sess_read', '_sess_write', '_sess_destroy', '_sess_gc'); }
tep_session_start();
$_SESSION = $session_backup; unset($session_backup); } }?>
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