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<?php
/**
*
* @package phpBB3
* @version $Id$
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
/**
*/
define('IN_PHPBB', true);
define('IN_CRON', true);
$phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './';
$phpEx = substr(strrchr(__FILE__, '.'), 1);
include($phpbb_root_path . 'common.' . $phpEx);
// Do not update users last page entry
$user->session_begin(false);
$auth->acl($user->data);
function output_image()
{
// Output transparent gif
header('Cache-Control: no-cache');
header('Content-type: image/gif');
header('Content-length: 43');
echo base64_decode('R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==');
// test without flush ;)
// flush();
}
function do_cron($cron_lock, $run_tasks)
{
global $config;
foreach ($run_tasks as $task)
{
if (defined('DEBUG_EXTRA') && $config['use_system_cron'])
{
echo "[phpBB cron] Running task '{$task->get_name()}'\n";
}
$task->run();
}
// Unloading cache and closing db after having done the dirty work.
$cron_lock->unlock();
garbage_collection();
}
// Thanks to various fatal errors and lack of try/finally, it is quite easy to leave
// the cron lock locked, especially when working on cron-related code.
//
// Attempt to alleviate the problem by doing setup outside of the lock as much as possible.
//
// If DEBUG_EXTRA is defined and cron lock cannot be obtained, a message will be printed.
if ($config['use_system_cron'])
{
$use_shutdown_function = false;
$cron = new phpbb_cron_manager();
}
else
{
$cron_type = request_var('cron_type', '');
$use_shutdown_function = (@function_exists('register_shutdown_function')) ? true : false;
output_image();
}
$cron_lock = new phpbb_lock_db('cron_lock', $config, $db);
if ($cron_lock->lock())
{
if ($config['use_system_cron'])
{
$run_tasks = $cron->find_all_ready_tasks();
}
else
{
// If invalid task is specified, empty $run_tasks is passed to do_cron which then does nothing
$run_tasks = array();
$task = $cron->find_task($cron_type);
if ($task)
{
if ($task->is_parametrized())
{
$task->parse_parameters($request);
}
if ($task->is_ready())
{
if ($use_shutdown_function && !$task->is_shutdown_function_safe())
{
$use_shutdown_function = false;
}
$run_tasks = array($task);
}
}
}
if ($use_shutdown_function)
{
register_shutdown_function('do_cron', $cron_lock, $run_tasks);
}
else
{
do_cron($cron_lock, $run_tasks);
}
}
else
{
if (defined('DEBUG_EXTRA'))
{
echo "Could not obtain cron lock.\n";
}
}
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