<?php
if (! defined('MASTER_CRONJOB'))
	die('You cannot access this file directly!');

/**
 * This file is part of the Froxlor project.
 * Copyright (c) 2003-2009 the SysCP Team (see authors).
 * Copyright (c) 2010 the Froxlor Team (see authors).
 *
 * For the full copyright and license information, please view the COPYING
 * file that was distributed with this source code. You can also view the
 * COPYING file online at http://files.froxlor.org/misc/COPYING.txt
 *
 * @copyright (c) the authors
 * @author Florian Lippert <flo@syscp.org> (2003-2009)
 * @author Froxlor team <team@froxlor.org> (2010-)
 * @license GPLv2 http://files.froxlor.org/misc/COPYING.txt
 * @package Cron
 *         
 */

if (@php_sapi_name() != 'cli' && @php_sapi_name() != 'cgi' && @php_sapi_name() != 'cgi-fcgi') {
	die('This script will only work in the shell.');
}

// ensure that default timezone is set
if (function_exists("date_default_timezone_set") && function_exists("date_default_timezone_get")) {
	@date_default_timezone_set(@date_default_timezone_get());
}

$basename = basename($_SERVER['PHP_SELF'], '.php');
$crontype = "";
if (isset($argv) && is_array($argv) && count($argv) > 1) {
	for ($x = 1; $x < count($argv); $x ++) {
		if (substr(strtolower($argv[$x]), 0, 2) == '--' && strlen($argv[$x]) > 3) {
			$crontype = substr(strtolower($argv[$x]), 2);
			$basename .= "-" . $crontype;
			break;
		}
	}
}
$lockdir = '/var/run/';
$lockFilename = 'froxlor_' . $basename . '.lock-';
$lockfName = $lockFilename . getmypid();
$lockfile = $lockdir . $lockfName;

// create and open the lockfile!
$keepLockFile = false;
$debugHandler = fopen($lockfile, 'w');
fwrite($debugHandler, 'Setting Lockfile to ' . $lockfile . "\n");
fwrite($debugHandler, 'Setting Froxlor installation path to ' . \Froxlor\Froxlor::getInstallDir() . "\n");

if (! file_exists(\Froxlor\Froxlor::getInstallDir() . '/lib/userdata.inc.php')) {
	die("Froxlor does not seem to be installed yet - skipping cronjob");
}

// Includes the Usersettings eg. MySQL-Username/Passwort etc.
require \Froxlor\Froxlor::getInstallDir() . '/lib/userdata.inc.php';
fwrite($debugHandler, 'Userdatas included' . "\n");

// Legacy sql-root-information
if (isset($sql['root_user']) && isset($sql['root_password']) && (! isset($sql_root) || ! is_array($sql_root))) {
	$sql_root = array(
		0 => array(
			'caption' => 'Default',
			'host' => $sql['host'],
			'user' => $sql['root_user'],
			'password' => $sql['root_password']
		)
	);
	unset($sql['root_user']);
	unset($sql['root_password']);
}

// Includes the Functions
require \Froxlor\Froxlor::getInstallDir() . '/lib/functions/constant.formfields.php';
require \Froxlor\Froxlor::getInstallDir() . '/lib/functions/constant.logger.php';

// Includes the MySQL-Tabledefinitions etc.
require \Froxlor\Froxlor::getInstallDir() . '/lib/tables.inc.php';
fwrite($debugHandler, 'Table definitions included' . "\n");

// try database connection, it will throw
// and exception itself if failed
try {
	\Froxlor\Database\Database::query("SELECT 1");
} catch (Exception $e) {
	// Do not proceed further if no database connection could be established
	fclose($debugHandler);
	unlink($lockfile);
	die($e->getMessage());
}

fwrite($debugHandler, 'Database-connection established' . "\n");

// open the lockfile directory and scan for existing lockfiles
$lockDirHandle = opendir($lockdir);

while ($fName = readdir($lockDirHandle)) {

	if ($lockFilename == substr($fName, 0, strlen($lockFilename)) && $lockfName != $fName) {
		// Check if last run jailed out with an exception
		$croncontent = file($lockdir . $fName);
		$lastline = $croncontent[(count($croncontent) - 1)];

		if ($lastline == '=== Keep lockfile because of exception ===') {
			fclose($debugHandler);
			unlink($lockfile);
			\Froxlor\System\Cronjob::dieWithMail('Last cron jailed out with an exception. Exiting...' . "\n" . 'Take a look into the contents of ' . $lockdir . $fName . '* for more information!' . "\n");
		}

		// Check if cron is running or has died.
		$check_pid = substr(strrchr($fName, "-"), 1);
		system("kill -CHLD " . (int) $check_pid . " 1> /dev/null 2> /dev/null", $check_pid_return);

		if ($check_pid_return == 1) {
			// Result: Existing lockfile/pid isn't running
			// Most likely it has died
			//
			// Action: Remove it and continue
			//
			fwrite($debugHandler, 'Previous cronjob didn\'t exit clean. PID: ' . $check_pid . "\n");
			fwrite($debugHandler, 'Removing lockfile: ' . $lockdir . $fName . "\n");
			@unlink($lockdir . $fName);
		} else {
			// Result: A Cronscript with this pid
			// is still running
			// Action: remove my own Lock and die
			//
			// close the current lockfile
			fclose($debugHandler);

			// ... and delete it
			unlink($lockfile);
			\Froxlor\System\Cronjob::dieWithMail('There is already a Cronjob for ' . $crontype . ' in progress. Exiting...' . "\n" . 'Take a look into the contents of ' . $lockdir . $lockFilename . '* for more information!' . "\n");
		}
	}
}

/**
 * if using fcgid or fpm for froxlor-vhost itself, we have to check
 * whether the permission of the files are still correct
 */
fwrite($debugHandler, 'Checking froxlor file permissions' . "\n");
$_mypath = \Froxlor\FileDir::makeCorrectDir(\Froxlor\Froxlor::getInstallDir());

if (((int) \Froxlor\Settings::Get('system.mod_fcgid') == 1 && (int) \Froxlor\Settings::Get('system.mod_fcgid_ownvhost') == 1) || ((int) \Froxlor\Settings::Get('phpfpm.enabled') == 1 && (int) \Froxlor\Settings::Get('phpfpm.enabled_ownvhost') == 1)) {
	$user = \Froxlor\Settings::Get('system.mod_fcgid_httpuser');
	$group = \Froxlor\Settings::Get('system.mod_fcgid_httpgroup');

	if (\Froxlor\Settings::Get('phpfpm.enabled') == 1) {
		$user = \Froxlor\Settings::Get('phpfpm.vhost_httpuser');
		$group = \Froxlor\Settings::Get('phpfpm.vhost_httpgroup');
	}
	// all the files and folders have to belong to the local user
	// now because we also use fcgid for our own vhost
	\Froxlor\FileDir::safe_exec('chown -R ' . $user . ':' . $group . ' ' . escapeshellarg($_mypath));
} else {
	// back to webserver permission
	$user = \Froxlor\Settings::Get('system.httpuser');
	$group = \Froxlor\Settings::Get('system.httpgroup');
	\Froxlor\FileDir::safe_exec('chown -R ' . $user . ':' . $group . ' ' . escapeshellarg($_mypath));
}

// Initialize logging
$cronlog = \Froxlor\FroxlorLogger::getInstanceOf(array(
	'loginname' => 'cronjob'
));
fwrite($debugHandler, 'Logger has been included' . "\n");

if (\Froxlor\Froxlor::hasUpdates() || \Froxlor\Froxlor::hasDbUpdates()) {
	if (\Froxlor\Settings::Get('system.cron_allowautoupdate') == null || \Froxlor\Settings::Get('system.cron_allowautoupdate') == 0) {
		/**
		 * Do not proceed further if the Database version is not the same as the script version
		 */
		fclose($debugHandler);
		unlink($lockfile);
		$errormessage = "Version of file doesn't match version of database. Exiting...\n\n";
		$errormessage .= "Possible reason: Froxlor update\n";
		$errormessage .= "Information: Current version in database: " . \Froxlor\Settings::Get('panel.version') . (! empty(\Froxlor\Froxlor::BRANDING) ? "-" . \Froxlor\Froxlor::BRANDING : "") . " (DB: " . \Froxlor\Settings::Get('panel.db_version') . ") - version of Froxlor files: " . \Froxlor\Froxlor::getVersionString() . ")\n";
		$errormessage .= "Solution: Please visit your Foxlor admin interface for further information.\n";
		\Froxlor\System\Cronjob::dieWithMail($errormessage);
	}

	if (\Froxlor\Settings::Get('system.cron_allowautoupdate') == 1) {
		/**
		 * let's walk the walk - do the dangerous shit
		 */
		$cronlog->logAction(CRON_ACTION, LOG_WARNING, 'Automatic update is activated and we are going to proceed without any notices');
		$cronlog->logAction(CRON_ACTION, LOG_WARNING, 'all new settings etc. will be stored with the default value, that might not always be right for your system!');
		$cronlog->logAction(CRON_ACTION, LOG_WARNING, "If you don't want this to happen in the future consider removing the --allow-autoupdate flag from the cronjob");
		fwrite($debugHandler, '*** WARNING *** - Automatic update is activated and we are going to proceed without any notices' . "\n");
		fwrite($debugHandler, '*** WARNING *** - all new settings etc. will be stored with the default value, that might not always be right for your system!' . "\n");
		fwrite($debugHandler, "*** WARNING *** - If you don't want this to happen in the future consider removing the --allow-autoupdate flag from the cronjob\n");
		// including update procedures
		define('_CRON_UPDATE', 1);
		include_once \Froxlor\Froxlor::getInstallDir() . '/install/updatesql.php';
		// pew - everything went better than expected
		$cronlog->logAction(CRON_ACTION, LOG_WARNING, 'Automatic update done - you should check your settings to be sure everything is fine');
		fwrite($debugHandler, '*** WARNING *** - Automatic update done - you should check your settings to be sure everything is fine' . "\n");
	}
}

fwrite($debugHandler, 'Froxlor version and database version are correct' . "\n");

$cronscriptDebug = (\Froxlor\Settings::Get('system.debug_cron') == '1') ? true : false;

// Create a new idna converter
$idna_convert = new \Froxlor\Idna\IdnaWrapper();