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✏️ Editing: wd

#!/usr/local/psa/bin/sw-engine-pleskrun
<?php
// Copyright 1999-2024. WebPros International GmbH. All rights reserved.
use PleskExt\Watchdog\System\Services;

require_once('sdk.php');

require("modules/watchdog/wdlib.php");

//------------------------------------------------------------------------------

class ParsCmdLineErr extends WDExc
{
}

//------------------------------------------------------------------------------

try {

main($argc, $argv);

} catch (ParsCmdLineErr $e) {
	echo $e->getMessage() . "\n";
	usage();
	exit(1);
} catch (Exception $e) {
	echo $e->getMessage() . "\n";
	exit(1);
}

exit(0);

//------------------------------------------------------------------------------

function main($argc, $argv)
{
	$access_opts = array(
		'start' => false,
		'stop' => false,
		'restart' => false,
		'full-restart' => false,

'start-monit' => false,
		'stop-monit' => false,
		'restart-monit' => false,
		'full-restart-monit' => false,
		'start-wdcollect' => false,
		'stop-wdcollect' => false,
		'restart-wdcollect' => false,
		'full-restart-wdcollect' => false,
		'adapt' => false,

'regen-all' => false,
		'regen-monitrc' => false,

'ping-monit' => false,
		'ping-wdcollect' => false,

'plesk-name' => false,
		'monit-service' => true,
		'unmonit-service' => true,
		'start-service' => true,
		'stop-service' => true,
		'restart-service' => true,
		'service-status' => true,
		'service-monit-status' => true,

'monit-disk' => true,
			'space-rate' => true,
			'inods-rate' => true,
			'command' => true,
		'unmonit-disk' => true,
		'disk-status' => true,
		'disk-monit-status' => true,
	);

if (!is_plesk_configured()) {
		// non fatal error
		echo "Plesk is not configured. You should go to the Server Administration Panel and configure it.\n";
		return 0;
	}

unset($argv[0]);
	$opts = parse_cmd_line($argv, $access_opts);
	wd__db_connect();

$is_plesk_name = isset($opts['plesk-name']);
	$space_rate = $space_rate_unit = $inods_rate = $inods_rate_unit = null;
	i__set_space_rate($opts,  $space_rate, $space_rate_unit);
	i__set_inods_rate($opts, $inods_rate, $inods_rate_unit);
	$command = !isset($opts['command']) ? null : $opts['command'];
	$services = new Services();

if (isset($opts['start']))
		start_wd();
	elseif (isset($opts['stop']))
		stop_wd();
	elseif (isset($opts['restart']))
		restart_wd();
	elseif (isset($opts['full-restart']))
		restart_wd(true);
	elseif (isset($opts['start-monit']))
		start_monit();
	elseif (isset($opts['stop-monit']))
		stop_monit();
	elseif (isset($opts['restart-monit']))
		restart_monit();
	elseif (isset($opts['full-restart-monit']))
		restart_monit(true);
	elseif (isset($opts['start-wdcollect']))
		start_wdcollect();
	elseif (isset($opts['stop-wdcollect']))
		stop_wdcollect();
	elseif (isset($opts['restart-wdcollect']))
		restart_wdcollect();
	elseif (isset($opts['full-restart-wdcollect']))
		restart_wdcollect(true);
	elseif (isset($opts['adapt']))
		restart_wd(true, true);

elseif (isset($opts['regen-all'])) {
		create_monit_config();
	} elseif (isset($opts['regen-monitrc']))
		create_monit_config();

elseif (isset($opts['ping-monit']))
		f_ping_monit();
	elseif (isset($opts['ping-wdcollect']))
		f_ping_wdcollect();

elseif (isset($opts['monit-service']))
		monit_service(norm_service_name($services, $opts['monit-service'], $is_plesk_name));
	elseif (isset($opts['unmonit-service']))
		unmonit_service(norm_service_name($services, $opts['unmonit-service'], $is_plesk_name));
	elseif (isset($opts['service-status']))
		f_service_status(norm_service_name($services, $opts['service-status'], $is_plesk_name));
	elseif (isset($opts['service-monit-status']))
		f_service_monit_status(norm_service_name($services, $opts['service-monit-status'], $is_plesk_name));

elseif (isset($opts['monit-disk'])) {
		if ('percent' === $space_rate_unit && (20 > $space_rate || 100 < $space_rate)) {
			throw new ParsCmdLineErr("Invalid value $space_rate for parameter 'space_rate'");
		}

if ('percent' === $inods_rate_unit && (20 > $inods_rate || 100 < $inods_rate)) {
			throw new ParsCmdLineErr("Invalid value $inods_rate for parameter 'inods_rate'");
		}

if (1 > $space_rate) {
			throw new ParsCmdLineErr("Invalid value $space_rate for parameter 'space_rate': Enter the positive number.");
		}

if (1 > $inods_rate) {
			throw new ParsCmdLineErr("Invalid value $inods_rate for parameter 'inods_rate': Enter the positive number.");
		}

if (!empty($command) && !isValidCommandForMonit($command)) {
			throw new ParsCmdLineErr("Impossible executable command $command: Enter command without the \" and which reference to executable file"); // to check
		}

monit_disk($opts['monit-disk'], $space_rate, $space_rate_unit, $inods_rate, $inods_rate_unit, $command);
	}
	elseif (isset($opts['unmonit-disk']))
		unmonit_disk($opts['unmonit-disk']);
	elseif (isset($opts['disk-status']))
		f_disk_status($opts['disk-status']);
	elseif (isset($opts['disk-monit-status']))
		f_disk_monit_status($opts['disk-monit-status']);

else
		usage();
}

function usage()
{
	echo "Usage: wd <options>
Options are as follows:
  --start                       Start all Watchdog services
  --stop                        Stop Watchdog and all its services
  --restart                     Restart Watchdog
  --full-restart                Rebuild configuration file and restart

--start-monit                 Start the Monit service
  --stop-monit                  Stop the Monit service
  --restart-monit               Restart the Monit service
  --full-restart-monit          Rebuild configuration file and restart the Monit service
  --start-wdcollect             Start the wdcollect service
  --stop-wdcollect              Stop the wdcollect service
  --restart-wdcollect           Restart the wdcollect service
  --full-restart-wdcollect      Rebuild configuration file and restart the wdcollect service
  --adapt                       Reconfigure the module and restart the monitoring service with new settings

--regen-all                   Create all configuration files
  --regen-monitrc               Create configuration file for the Monit service

--ping-monit                  Check via the network if the Monit service is working
  --ping-wdcollect              Check via the network if the the wdcollect service is working

--monit-service=<service>     Enable monitoring service
  --unmonit-service=<service>   Disable monitoring service
  --service-status=<service>    Return status of monitored service
  --service-monit-status=<service>  Return the system monitoring status
    [ --plesk-name ]            Service name as shown in the Plesk control panel

--monit-disk=<device>         Start monitoring a partition
       [ --space-rate=<space_rate> ] (%, Gb, Mb)
       [ --inods-rate=<inods_rate> ]  (%, file)
       [ --command=<command> ]     Define a command to run when disk space usage reaches the defined threshold
  --unmonit-disk                Stop monitoring partition
  --disk-status=<device>        Return status of monitored partition
  --disk-monit-status=<device>  Return partition monitoring status\n";
}

function f_ping_monit()
{
	echo pm_Locale::lmsg(monit_wait_start(30) ? 'DNT.statusRunning' : 'DNT.statusStopped') . "\n";
}

function f_ping_wdcollect()
{
	echo pm_Locale::lmsg(wdcollect_wait_start(30) ? 'DNT.statusRunning' : 'DNT.statusStopped') . "\n";
}

function f_service_status($srv_name)
{
	echo get_service_wd_status(i__get_service_status($srv_name));
}

function f_service_monit_status($srv_name)
{
	echo get_service_monit_wd_status(i__get_service_status($srv_name));
}

function f_disk_status($device)
{
	echo get_disk_wd_status(i__get_disk_status($device));
}

function f_disk_monit_status($device)
{
	echo get_disk_monit_wd_status(i__get_disk_status($device));
}

//------------------------------------------------------------------------------

function i__set_space_rate($opts, &$space_rate, &$space_rate_unit)
{
	if (!isset($opts['space-rate'])) {
		$space_rate = 80;
		$space_rate_unit = 'percent';
		return;
	}

$m = sscanf($opts['space-rate'], "%f%s", $space_rate, $space_rate_unit);
	if (1 > $m) {
		throw new ParsCmdLineErr("Disk space rate is set incorrectly");
	}

$space_rate_unit = 1 == $m ? "percent" : i__norm_space_unit($space_rate_unit);
	if (false === $space_rate_unit) {
		throw new ParsCmdLineErr("Disk space rate is set incorrectly");
	}

if ("percent" == $space_rate_unit && (20 > $space_rate || 100 < $space_rate)) {
		throw new ParsCmdLineErr("Disk space usage threshold has been set incorrectly: Enter a value from 20 to 100");
	}

if (1 > $space_rate) {
		throw new ParsCmdLineErr("Disk space usage threshold has been set incorrectly: Enter a value greater than 0");
	}
}

function i__set_inods_rate($opts, &$inods_rate, &$inods_rate_unit)
{
	if (!isset($opts['inods-rate'])) {
		$inods_rate = 80;
		$inods_rate_unit = 'percent';
		return;
	}

$m = sscanf($opts['inods-rate'], "%f%s", $inods_rate, $inods_rate_unit);
	if (1 > $m) {
		throw new ParsCmdLineErr("Files number rate is set incorrectly");
	}

$inods_rate_unit = 1 == $m ? "file" : i__norm_inods_unit($inods_rate_unit);
	if (false === $inods_rate_unit) {
		throw new ParsCmdLineErr("Files number rate is set incorrectly");
	}

if ("percent" == $inods_rate_unit && (20 > $inods_rate || 100 < $inods_rate)) {
		throw new ParsCmdLineErr("Files number threshold has been set incorrectly: Enter a value from 20 to 100");
	}

if (1 > $inods_rate) {
		throw new ParsCmdLineErr("Files number threshold has been set incorrectly: Enter a value greater than 0");
	}
}

function i__norm_space_unit($space_rate_unit)
{
	if ("%" == $space_rate_unit || !stricmp("percent", $space_rate_unit))
		return "percent";

if (!stricmp("Gb", $space_rate_unit) || !stricmp("gigabyte", $space_rate_unit))
		return "gigabyte";

if (!stricmp("Mb", $space_rate_unit) || !stricmp("megabyte", $space_rate_unit))
		return "megabyte";

if (!stricmp("Kb", $space_rate_unit) || !stricmp("kilobyte", $space_rate_unit))
		return "kilobyte";

if (!stricmp("b", $space_rate_unit) || !stricmp("byte", $space_rate_unit))
		return "byte";

return false;
}

function i__norm_inods_unit($inods_rate_unit)
{
	if ("%" == $inods_rate_unit || !stricmp("percent", $inods_rate_unit))
		return "percent";

return false;
}

function stricmp($s1, $s2)
{
	return strncasecmp($s1, $s2, max(strlen($s1), strlen($s2)));
}

function i__get_service_status($srv_name)
{
	$stats = get_monitoring_status();

if (!isset($stats['services'][$srv_name])) {
		throw new WDExc("You did not configure monitoring for the $srv_name service");
	}

if (!is_service($stats['services'][$srv_name]['type'])) {
		throw new WDExc("$srv_name is not a service");
	}

return $stats['services'][$srv_name];
}

function i__get_disk_status($device)
{
	$device_name = ("/" == $device[0]) ? substr($device, 1) : $device;
	$stats = get_monitoring_status();

if (!isset($stats['services'][$device_name])) {
		throw new WDExc("You did not configure monitoring for the $device device");
	}

if (!is_disk($stats['services'][$device_name]['type'])) {
		throw new WDExc("$device is not a device");
	}

return $stats['services'][$device_name];
}

function norm_service_name(Services $services, $service_name, $is_plesk_name)
{
	if (!$is_plesk_name)
		return $service_name;

$plesk_service_name = $service_name;
	$service_name = $services->getWatchdogServiceName($plesk_service_name);
	if ($service_name !== null) {
		return $service_name;
	}

throw new WDExc("There is no $plesk_service_name service in Plesk control panel");
}

function parse_cmd_line($argv, $all_opts)
{
	$opts = array();
	$i = 0;
	$n = min(count($argv), 100);
	reset($argv);

while ($n > $i) {
		$opt = parse_option(current($argv));
		check_option_on_access($opt, $all_opts);
		$opts[$opt['name']] = $opt['value'];
		next($argv);
		++$i;
	}

return $opts;
}

function check_option_on_access($opt, $all_opts)
{
	if (!isset($all_opts[$opt['name']])) {
		throw new ParsCmdLineErr("Unknown option '{$opt['name']}'");
	}

if ($all_opts[$opt['name']]) {
		if (is_bool($opt['value'])) {
			throw new ParsCmdLineErr("Option '{$opt['name']}' requires an argument");
		}
	} else {
		if (!is_bool($opt['value'])) {
			throw new ParsCmdLineErr("Option '{$opt['name']}' does not require arguments");
		}
	}
}

function parse_option($opt)
{
	if (strncmp("--", $opt, 2)) {
		throw new ParsCmdLineErr("Unknown operand '$opt'");
	}

if (false !== ($p = strpos($opt, "=", 2))) {
		$name = substr($opt, 2, $p - 2);
		$val = substr($opt, $p + 1);
	} else {
		$name = substr($opt, 2);
		$val = true;
	}

if (empty($name) || empty($val)) {
		throw new ParsCmdLineErr("Option '$opt' is set up incorrectly");
	}

return array('name' => $name, 'value' => $val);
}

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