protected function __construct()
{
// Register shutdown function here
$useCron = vB::getDatastore()->getOption('mailqueue');
if (empty($useCron)) {
vB_Shutdown::instance()->add(array('vB_Mail', 'execMailQueue'));
}
}
/**
* Returns singleton instance of self.
*
* @return vB_Shutdown
*/
public static function instance()
{
if (!isset(self::$instance)) {
$class = __CLASS__;
self::$instance = new $class();
}
return self::$instance;
}
/**
* Run cron
*
* @param bool $noshutdownfunc Set to true to run directly rather than to run in shutdown function
*
* @return bool
*/
public function run($noshutdownfunc = false)
{
require_once DIR . '/includes/functions_cron.php';
$options = vB::getDatastore()->get_value('options');
if (!$noshutdownfunc and empty($options['crontab'])) {
vB_Shutdown::instance()->add('exec_cron');
} else {
$cronid = NULL;
if (!empty($options['crontab']) and php_sapi_name() == 'cli') {
$cronid = intval($_SERVER['argv'][1]);
// if its a negative number or 0 set it to NULL so it just grabs the next task
if ($cronid < 1) {
$cronid = NULL;
}
}
exec_cron($cronid);
}
return true;
}
/**
* Add function to be executed at shutdown
*
* @param string Name of function to be executed on shutdown
*/
function add($function)
{
$obj =& vB_Shutdown::init();
if (function_exists($function) and !in_array($function, $obj->shutdown)) {
$obj->shutdown[] = $function;
}
}
/**
* Constructor - initializes the nozip system,
* and calls and instance of the vB_Input_Cleaner class
*/
function vB_Registry()
{
// variable to allow bypassing of gzip compression
$this->nozip = defined('NOZIP') ? true : (@ini_get('zlib.output_compression') ? true : false);
// variable that controls HTTP header output
$this->noheader = defined('NOHEADER') ? true : false;
@ini_set('zend.ze1_compatibility_mode', 0);
// initialize the input handler
$this->cleaner =& vB::getCleaner();
$this->input = new vB_Input_Cleaner($this);
// initialize the shutdown handler
$this->shutdown = vB_Shutdown::instance();
$this->config =& vB::getConfig();
$this->csrf_skip_list = defined('CSRF_SKIP_LIST') ? explode(',', CSRF_SKIP_LIST) : array();
}
$filedata = base64_decode('R0lGODlhAQABAIAAAMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==');
$filesize = strlen($filedata);
// browser will think there is no more data if content-length is what is returned
// regardless of how long the script continues to execute, apart from IIS + CGI
header('Content-type: image/gif');
if (!(strpos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS') !== false and strpos(SAPI_NAME, 'cgi') !== false)) {
header('Content-Length: ' . $filesize);
header('Connection: Close');
}
if (!$vbulletin->options['crontab']) {
echo $filedata;
flush();
}
($hook = vBulletinHook::fetch_hook('cron_start')) ? eval($hook) : false;
if (!defined('NOSHUTDOWNFUNC') and !$vbulletin->options['crontab']) {
vB_Shutdown::add('exec_cron');
} else {
$cronid = NULL;
if ($vbulletin->options['crontab'] and SAPI_NAME == 'cli') {
$cronid = intval($_SERVER['argv'][1]);
// if its a negative number or 0 set it to NULL so it just grabs the next task
if ($cronid < 1) {
$cronid = NULL;
}
}
exec_cron($cronid);
if (defined('NOSHUTDOWNFUNC')) {
$db->close();
}
}
/*======================================================================*\
public static function shutdown()
{
if (self::$skipShutdown) {
//always shutdown cache
vB_Cache::instance(vB_Cache::CACHE_FAST)->shutdown();
vB_Cache::instance(vB_Cache::CACHE_LARGE)->shutdown();
vB_Cache::instance(vB_Cache::CACHE_STD)->shutdown();
} else {
vB_Shutdown::instance()->shutdown();
}
}
/** This sets the db. It will normally be call in the boot process
*
* @param array config array
***/
public static function init(&$config)
{
//currently mysqli is handled by the mysql class
if ($config['Database']['dbtype'] == 'mysqli') {
self::$dbtype = 'MYSQL';
} else {
self::$dbtype = strtoupper($config['Database']['dbtype']);
}
$class = 'vB_dB_' . self::$dbtype . '_Assertor';
if (class_exists($class)) {
self::$instance = new $class($config);
}
vB_Shutdown::instance()->add(array(self::$instance, 'executeShutdownQueries'));
}
/**
* Returns an instance of the global cache.
* The cache type used is defined in options.
*
* @return vB_Cache - Reference to instance of the cache handler
*/
public static function instance($type = self::CACHE_STD)
{
$DEFAULTS_CACHETYPE = self::getDefaults();
$vb5_config =& vB::getConfig();
if (!empty($vb5_config['Misc']['debug']) and !empty($_REQUEST['nocache'])) {
self::$disableCache = 1;
}
if (!isset(self::$instance[$type])) {
if (!isset($vb5_config['Cache']) or !isset($vb5_config['Cache']['class']) or !is_array($vb5_config['Cache']['class']) or !isset($vb5_config['Cache']['class'][$type])) {
$cacheClass = $DEFAULTS_CACHETYPE[$type];
} else {
$cacheClass = $vb5_config['Cache']['class'][$type];
}
// if more than 1 of the 3 types (STD, FAST, LARGE) are using the same implementation,
// don't create a new instance, just share the same one.
foreach (array(self::CACHE_STD, self::CACHE_FAST, self::CACHE_LARGE) as $cacheType) {
if (!empty(self::$instance[$cacheType]) and is_a(self::$instance[$cacheType], $cacheClass)) {
self::$instance[$type] = self::$instance[$cacheType];
return self::$instance[$type];
}
}
// call constructor directly. Having static functions with the same name but different
// semantics in the subclasses works, but its tacky.
self::$instance[$type] = new $cacheClass($type);
//call_user_func(array($cacheClass, 'instance'));
vB_Shutdown::instance()->add(array(self::$instance[$type], 'shutdown'));
}
return self::$instance[$type];
}