science-ation/admin/judges_sa_launcher.php

<?

// make sure logs folder exists, and htaccess it to deny access
if (!file_exists('../data/logs'))
	@mkdir('../data/logs');

if (!file_exists('../data/logs/.htaccess'))
	@file_put_contents('../data/logs/.htaccess', "Order Deny,Allow\r\nDeny From All\r\n");
//   Check which OS we are running
$pos = strpos(getcwd(), '/');
if ($pos === false) {
	// Windows os server.
	// if IIS Web Server use WScript.Shell 'run' command and.. we need a batch file to start a process and return immediately
	$bat_filename = '../data/judges_sa.bat';
	if (file_exists($bat_filename)) {
		// delete the batch file then re-create it with the current date
		unlink($bat_filename);
	}
	$bat_file = fopen($bat_filename, 'w');
	if ($bat_file) {
		fwrite($bat_file, 'ECHO OFF' . "\n");
		fwrite($bat_file, 'START /BELOWNORMAL /B php judges_sa.php >../data/logs/judge_scheduler_' . date('YmdHis') . '.log 2>&1 &' . "\n");
		fwrite($bat_file, 'EXIT' . "\n");
		fclose($bat_file);
	}
	$WshShell = new COM('WScript.Shell');
	//  next line designed for Windows os with IIS web server. It will probably fail if Windows using apache web server
	try {
		$oExec = $WshShell->run($bat_filename, 0, false);  // THIS SHOULD WORK for windows using IIS as webserver.
	} catch (Exception $e) {
		//  if the wshshell-> run fails then we are perhaps running an apache server and the next might work.
		//  But, the call in judges_sa_launcher_apache.php does not return until completed so I use this logic
		//  to inform the user how to get to the status page.
		//	CAUTION:  This path REQUIRES that php be compiled with CLI option and other things Dennis does not understand!
		//  This may work for some servers.    NEVER use this on a shared server - you will hog it and get your account suspended.
		echo ' This server requires manual intervention to start the scheduler and to navigate to the Status page.<br/>';
		echo ' The scheduler will run at normal priority - which in some servers may present a sluggish response.<br />';
		echo ' Please follow these instruction exactly:<br />';
		echo " 1. Click 'Start the Scheduler' link ONCE. (You will not see any change in this screen) <br />";
		echo "       *** DO NOT Click 'Start the Scheduler' more than once!<br />";
		echo " 2. Click 'Check the Status' link and wait. (You will be taken to the Status Page. There, you should see that the scheduler is running.) <br />";
		echo '<br /><a href="judges_sa_launcher_apache.php">Start the Scheduler</a><br /><br />';
		echo '<a href="judges_scheduler_status.php">Check the Status</a><br />';
		exit;
		// This is the call that works - but it does not return until judges_sa is finished so... I launch it from another window
		//	exec("php judges_sa.php >../data/logs/judge_scheduler_".date("YmdHis").".log 2>&1 &");
	}
} else {
	// *nix server
	// add PHP_SELF just so when we do a process listing on the server we know which fair its running for
	// the argument does not get used by the script at all
	exec("nice php judges_sa.php {$_SERVER['PHP_SELF']} >../data/logs/judge_scheduler_" . date('YmdHis') . '.log 2>&1 &');
}
// usleep(1500000); // 1.5 second to allow the judges_sa to update the % status to 0% otherwise the status page will think its not running if it gets there too soon
header('Location: judges_scheduler_status.php');
exit;