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<?php
/**
* @file include/session.php
*
* @brief This file includes session related functions.
*
* Session management functions. These provide database storage of PHP
* session info.
*/
$session_exists = 0;
$session_expire = 180000;
function new_cookie($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) {
q("UPDATE `session`
SET `data` = '%s', `expire` = '%s' WHERE `sid` = '%s'",
dbesc($data),
dbesc($expire),
dbesc($id)
);
} else {
q("INSERT INTO `session` (sid, expire, data) values ('%s', '%s', '%s')",
//SET `sid` = '%s', `expire` = '%s', `data` = '%s'",
dbesc($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()));
return true;
}
$gc_probability = 50;
ini_set('session.gc_probability', $gc_probability);
ini_set('session.use_only_cookies', 1);
ini_set('session.cookie_httponly', 1);
/*
* Set our session storage functions.
*/
session_set_save_handler(
'ref_session_open',
'ref_session_close',
'ref_session_read',
'ref_session_write',
'ref_session_destroy',
'ref_session_gc'
);
// Force cookies to be secure (https only) if this site is SSL enabled. Must be done before session_start().
if(intval($a->config['system']['ssl_cookie_protection'])) {
$arr = session_get_cookie_params();
session_set_cookie_params(
((isset($arr['lifetime'])) ? $arr['lifetime'] : 0),
((isset($arr['path'])) ? $arr['path'] : '/'),
((isset($arr['domain'])) ? $arr['domain'] : $a->get_hostname()),
((isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on') ? true : false),
((isset($arr['httponly'])) ? $arr['httponly'] : true));
}
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