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<?php
// Session management functions. These provide database storage of PHP
// session info.
$session_exists = 0;
$session_expire = 180000;
if(! function_exists('ref_session_open')) {
function ref_session_open ($s,$n) {
return true;
}}
if(! function_exists('ref_session_read')) {
function ref_session_read ($id) {
global $session_exists;
if(x($id))
$r = q("SELECT `data` FROM `session` WHERE `sid`= '%s'", dbesc($id));
if(count($r)) {
$session_exists = true;
return $r[0]['data'];
}
return '';
}}
if(! function_exists('ref_session_write')) {
function ref_session_write ($id,$data) {
global $session_exists, $session_expire;
if(! $id || ! $data) {
return false;
}
$expire = time() + $session_expire;
$default_expire = time() + 300;
if($session_exists)
$r = q("UPDATE `session`
SET `data` = '%s', `expire` = '%s'
WHERE `sid` = '%s' LIMIT 1",
dbesc($data), dbesc($expire), dbesc($id));
else
$r = q("INSERT INTO `session`
SET `sid` = '%s', `expire` = '%s', `data` = '%s'",
dbesc($id), dbesc($default_expire), dbesc($data));
return true;
}}
if(! function_exists('ref_session_close')) {
function ref_session_close() {
return true;
}}
if(! function_exists('ref_session_destroy')) {
function ref_session_destroy ($id) {
q("DELETE FROM `session` WHERE `sid` = '%s'", dbesc($id));
return true;
}}
if(! function_exists('ref_session_gc')) {
function ref_session_gc($expire) {
q("DELETE FROM `session` WHERE `expire` < %d", dbesc(time()));
q("OPTIMIZE TABLE `sess_data`");
return true;
}}
$gc_probability = 50;
ini_set('session.gc_probability', $gc_probability);
ini_set('session.use_only_cookies', 1);
ini_set('session.cookie_httponly', 1);
session_set_save_handler ('ref_session_open', 'ref_session_close',
'ref_session_read', 'ref_session_write',
'ref_session_destroy', 'ref_session_gc');
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