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<?php
/*
 * load_balancer_setting.php
 *
 * part of pfSense (https://www.pfsense.org)
 * Copyright (c) 2004-2016 Electric Sheep Fencing, LLC
 * Copyright (c) 2005-2008 Bill Marquette <bill.marquette@gmail.com>
 * Copyright (c) 2012 Pierre POMES <pierre.pomes@gmail.com>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgment:
 *    "This product includes software developed by the pfSense Project
 *    for use in the pfSense® software distribution. (http://www.pfsense.org/).
 *
 * 4. The names "pfSense" and "pfSense Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    coreteam@pfsense.org.
 *
 * 5. Products derived from this software may not be called "pfSense"
 *    nor may "pfSense" appear in their names without prior written
 *    permission of the Electric Sheep Fencing, LLC.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *
 * "This product includes software developed by the pfSense Project
 * for use in the pfSense software distribution (http://www.pfsense.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

##|+PRIV
##|*IDENT=page-services-loadbalancer-setting
##|*NAME=Services: Load Balancer: Settings
##|*DESCR=Allow access to the 'Settings: Load Balancer: Settings' page.
##|*MATCH=load_balancer_setting.php*
##|-PRIV

require_once("guiconfig.inc");
require_once("functions.inc");
require_once("filter.inc");
require_once("shaper.inc");
require_once("util.inc");

if (!is_array($config['load_balancer']['setting'])) {
	$config['load_balancer']['setting'] = array();
}

$lbsetting = &$config['load_balancer']['setting'];

if ($_POST) {
	if ($_POST['apply']) {
		$retval = 0;
		$retval |= filter_configure();
		$retval |= relayd_configure();

		$savemsg = get_std_save_message($retval);
		clear_subsystem_dirty('loadbalancer');
	} else {
		unset($input_errors);
		$pconfig = $_POST;

		/* input validation */
		if ($_POST['timeout'] && !is_numeric($_POST['timeout'])) {
			$input_errors[] = gettext("Timeout must be a numeric value");
		}

		if ($_POST['interval'] && !is_numeric($_POST['interval'])) {
			$input_errors[] = gettext("Interval must be a numeric value");
		}

		if ($_POST['prefork']) {
			if (!is_numeric($_POST['prefork'])) {
				$input_errors[] = gettext("Prefork must be a numeric value");
			} else {
				if (($_POST['prefork']<=0) || ($_POST['prefork']>32)) {
					$input_errors[] = gettext("Prefork value must be between 1 and 32");
				}
			}
		}

		/* update config if user entry is valid */
		if (!$input_errors) {
			$lbsetting['timeout'] = $_POST['timeout'];
			$lbsetting['interval'] = $_POST['interval'];
			$lbsetting['prefork'] = $_POST['prefork'];

			write_config();
			mark_subsystem_dirty('loadbalancer');
		}
	}
}

$pgtitle = array(gettext("Services"), gettext("Load Balancer"), gettext("Settings"));
$shortcut_section = "relayd";

include("head.inc");

if ($input_errors) {
	print_input_errors($input_errors);
}

if ($savemsg) {
	print_info_box($savemsg, 'success');
}

if (is_subsystem_dirty('loadbalancer')) {
	print_apply_box(gettext("The load balancer configuration has been changed.") . "<br />" . gettext("The changes must be applied for them to take effect."));
}

/* active tabs */
$tab_array = array();
$tab_array[] = array(gettext("Pools"), false, "load_balancer_pool.php");
$tab_array[] = array(gettext("Virtual Servers"), false, "load_balancer_virtual_server.php");
$tab_array[] = array(gettext("Monitors"), false, "load_balancer_monitor.php");
$tab_array[] = array(gettext("Settings"), true, "load_balancer_setting.php");
display_top_tabs($tab_array);

$form = new Form();

$section = new Form_Section('Relayd Global Settings');

$section->addInput(new Form_Input(
	'timeout',
	'Timeout',
	'text',
	$pconfig['timeout']
))->setHelp('Set the global timeout in milliseconds for checks. Leave blank to use the default value of 1000 ms.');

$section->addInput(new Form_Input(
	'interval',
	'Interval',
	'text',
	$pconfig['interval']
))->setHelp('Set the interval in seconds at which the member of a pool will be checked. Leave blank to use the default interval of 10 seconds.');

$section->addInput(new Form_Input(
	'prefork',
	'Prefork',
	'text',
	$pconfig['prefork']
))->setHelp('Number of processes forked in advance by relayd. Leave blank to use the default value of 5 processes.');

$form->add($section);
print($form);

include("foot.inc");
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