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<?php /** @file */
// Session management functions. These provide database storage of PHP
// session info.
$session_exists = 0;
$session_expire = 180000;
$session_mirror = null;
function red_session_start() {
global $session_mirror;
session_start();
$session_mirror = $_SESSION;
session_write_close();
}
function red_session_get($var) {
global $session_mirror;
if(is_null($session_mirror))
red_session_start();
return $session_mirror[$var];
}
function red_session_put($var,$val) {
session_start();
$_SESSION[$var] = $val;
$session_mirror = $_SESSION;
session_write_close();
}
function red_session_destroy() {
session_start();
unset($_SESSION);
unset($session_mirror);
session_write_close();
}
function new_cookie($time) {
$old_sid = session_id();
// ??? This shouldn't have any effect if called after session_start()
// We probably need to set the session expiration and change the PHPSESSID cookie.
session_set_cookie_params($time);
session_regenerate_id(false);
q("UPDATE session SET sid = '%s' WHERE sid = '%s'", dbesc(session_id()), dbesc($old_sid));
if (x($_COOKIE, 'jsAvailable')) {
if ($time) {
$expires = time() + $time;
} else {
$expires = 0;
}
setcookie('jsAvailable', $_COOKIE['jsAvailable'], $expires);
}
}
function ref_session_open ($s,$n) {
return true;
}
function ref_session_read ($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 $r[0]['data'];
}
return '';
}
function ref_session_write ($id,$data) {
global $session_exists, $session_expire;
if(! $id || ! $data) {
return false;
}
$expire = time() + $session_expire;
$default_expire = time() + 300;
if($session_exists)
$r = q("UPDATE `session`
SET `data` = '%s', `expire` = '%s'
WHERE `sid` = '%s'",
dbesc($data), dbesc($expire), dbesc($id));
else
$r = q("INSERT INTO `session` (sid, expire, data) values ('%s', '%s', '%s')",
//SET `sid` = '%s', `expire` = '%s', `data` = '%s'",
dbesc($id), dbesc($default_expire), dbesc($data));
return true;
}
function ref_session_close() {
return true;
}
function ref_session_destroy ($id) {
q("DELETE FROM `session` WHERE `sid` = '%s'", dbesc($id));
return true;
}
function ref_session_gc($expire) {
q("DELETE FROM session WHERE expire < %d", dbesc(time()));
if (! get_config('system','innodb'))
db_optimizetable('session');
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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