cacti/settings.php

<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2026 The Cacti Group                                 |
 |                                                                         |
 | This program is free software; you can redistribute it and/or           |
 | modify it under the terms of the GNU General Public License             |
 | as published by the Free Software Foundation; either version 2          |
 | of the License, or (at your option) any later version.                  |
 |                                                                         |
 | This program is distributed in the hope that it will be useful,         |
 | but WITHOUT ANY WARRANTY; without even the implied warranty of          |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           |
 | GNU General Public License for more details.                            |
 +-------------------------------------------------------------------------+
 | Cacti: The Complete RRDtool-based Graphing Solution                     |
 +-------------------------------------------------------------------------+
 | This code is designed, written, and maintained by the Cacti Group. See  |
 | about.php and/or the AUTHORS file for specific developer information.   |
 +-------------------------------------------------------------------------+
 | http://www.cacti.net/                                                   |
 +-------------------------------------------------------------------------+
*/

require('./include/auth.php');
require_once(CACTI_PATH_LIBRARY . '/poller.php');

// set default action
set_default_action();

gfrv('tab', FILTER_CALLBACK, ['options' => 'sanitize_search_string']);
gfrv('filter', FILTER_CALLBACK, ['options' => 'sanitize_search_string']);

global $disable_log_rotation, $local_db_cnn_id;

switch (grv('action')) {
	case 'save':
		save_settings();

		break;
	case 'search':
		settings_search();

		break;
	case 'send_test':
		email_test();

		break;
	default:
		display_settings();

		break;
}

function display_settings() : void {
	global $settings, $tabs, $local_db_cnn_id, $disable_log_rotation;

	top_header();

	html_start_box(__('Cacti Settings'), '100%', true, 3, 'left', '');

	validate_settings_filter();

	print '<div class="settingsFilter">';
	print '<div>' . __('Search') . '</div>';
	print '<div><input class="ui-state-default ui-corner-all" type="text" size="25" id="filter" value="' . htmlerv('filter') . '"></div>';
	print '<div><span><button class="ui-state-default ui-corner-all" type="button" id="clear">' . __esc('Clear') . '</button></span></div>';
	print '</div>';

	html_end_box(false, true);

	// set the default settings category
	if (!isrv('tab')) {
		// there is no selected tab; select the first one
		if (isset($_SESSION['sess_settings_tab'])) {
			$current_tab = $_SESSION['sess_settings_tab'];
		} else {
			$current_tab = array_keys($tabs);
			$current_tab = $current_tab[0];
		}
	} else {
		$current_tab = grv('tab');
	}

	// If the tab no longer exists, use the first
	if (!isset($tabs[$current_tab])) {
		$current_tab = array_keys($tabs);
		$current_tab = $current_tab[0];
	}

	$_SESSION['sess_settings_tab'] = $current_tab;

	srv('tab', $current_tab);

	$data_collectors = db_fetch_cell('SELECT COUNT(*) FROM poller WHERE disabled=""');

	if ($data_collectors > 1) {
		set_config_option('boost_rrd_update_enable', 'on');
		set_config_option('boost_redirect', 'on');
	}

	$system_tabs = [
		'general',
		'path',
		'logging',
		'snmp',
		'poller',
		'data',
		'visual',
		'authentication',
		'boost',
		'spikes',
		'mail'
	];

	// draw the categories tabs on the top of the page
	print '<div>';
	print "<div id='settings' class='tabs' style='float:left;'><nav style='display:none;'><ul role='tablist'>";

	if (cacti_sizeof($tabs)) {
		foreach (array_keys($tabs) as $tab_short_name) {
			print "<li id='$tab_short_name' class='subTab" . (!in_array($tab_short_name, $system_tabs, true) ? ' pluginTab' : '') . "'><a " . (($tab_short_name == $current_tab) ? "class='selected'" : "class=''") . " href='" . htmle("settings.php?tab=$tab_short_name") . "'>" . $tabs[$tab_short_name] . '</a></li>';
		}
	}

	print '</ul></nav></div>';
	print '</div>';
	print "<div id='form_settings_wrap' style='display:none'>";

	form_start('settings.php', 'form_settings');

	$suffix = '';

	if (POLLER_ID > 1) {
		if ($current_tab == 'path') {
			$suffix = ' [<span class="deviceDown">' . __('NOTE: Path Settings on this Tab are only saved locally!') . '</span>]';
		}
	}

	html_start_box(__('Cacti Settings (%s)%s', $tabs[$current_tab], $suffix), '100%', true, 3, 'center', '');

	$form_array = [];

	// Remove log rotation is disabled by package maintainer
	if (isset($disable_log_rotation) && $disable_log_rotation == true) {
		unset($settings['path']['logrotate_enabled']);
		unset($settings['path']['logrotate_frequency']);
		unset($settings['path']['logrotate_retain']);
	}

	if ($current_tab == 'general') {
		$repos = array_rekey(
			db_fetch_assoc('SELECT id, name
				FROM package_repositories
				WHERE enabled = "on"
				ORDER BY name'),
			'id', 'name'
		);

		$repos[0] = __('Local Package File');

		$settings['general']['package_location']['array'] = $repos;
	}

	// RRDtool is not required for remote data collectors
	if (POLLER_ID > 1) {
		$settings['path']['path_rrdtool']['method'] = 'other';
	}

	if (isset($settings[$current_tab])) {
		foreach ($settings[$current_tab] as $field_name => $field_array) {
			$form_array += [$field_name => $field_array];

			if ((isset($field_array['items'])) && (is_array($field_array['items']))) {
				foreach ($field_array['items'] as $sub_field_name => $sub_field_array) {
					if (config_value_exists($sub_field_name)) {
						$form_array[$field_name]['items'][$sub_field_name]['form_id'] = 1;
					}

					if ($current_tab == 'path' && is_remote_path_setting($field_name)) {
						$form_array[$field_name]['items'][$sub_field_name]['value'] = db_fetch_cell_prepared('SELECT value
							FROM settings
							WHERE name = ?',
							[$sub_field_name], '', true, $local_db_cnn_id);
					} else {
						$form_array[$field_name]['items'][$sub_field_name]['value'] = db_fetch_cell_prepared('SELECT value
							FROM settings
							WHERE name = ?',
							[$sub_field_name]);
					}
				}
			} else {
				if (config_value_exists($field_name)) {
					$form_array[$field_name]['form_id'] = 1;
				}

				if ($current_tab == 'path' && is_remote_path_setting($field_name)) {
					$form_array[$field_name]['value'] = db_fetch_cell_prepared('SELECT value
						FROM settings
						WHERE name = ?',
						[$field_name], '', true, $local_db_cnn_id);
				} else {
					$form_array[$field_name]['value'] = db_fetch_cell_prepared('SELECT value
						FROM settings
						WHERE name = ?',
						[$field_name]);
				}
			}
		}
	}

	// Cache this setting as on large systems
	// this query runs long
	if ($current_tab == 'spikes') {
		if (!isset($_SESSION['sk_templates'])) {
			$spikekill_templates = array_rekey(
				db_fetch_assoc('SELECT DISTINCT gt.id, gt.name
					FROM graph_templates AS gt
					INNER JOIN graph_templates_item AS gti
					ON gt.id=gti.graph_template_id
					INNER JOIN data_template_rrd AS dtr
					ON gti.task_item_id=dtr.id
					WHERE gti.local_graph_id=0 AND data_source_type_id IN (3,2)
					ORDER BY name'),
				'id', 'name'
			);

			$_SESSION['sk_templates'] = $spikekill_templates;
		} else {
			$spikekill_templates = $_SESSION['sk_templates'];
		}

		$form_array['spikekill_templates']['array'] = $spikekill_templates;
	}

	draw_edit_form(
		[
			'config' => ['no_form_tag' => true],
			'fields' => $form_array
		]
	);

	html_end_box(true, true);

	form_hidden_box('tab', $current_tab, '');

	form_save_button('', 'save');

	print '</div>';

	?>
	<script type='text/javascript'>

	var filterTimeout  = null;
	var themeChanged   = false;
	var langRefresh    = false;
	var currentTheme   = '';
	var currentLang    = '';
	var rrdArchivePath = '';
	var prevSearch     = $('#filter').val();
	var smtpPath       = '';
	var currentTab     = '<?php print $current_tab; ?>';
	var dataCollectors = '<?php print $data_collectors; ?>';
	var permsTitle     = '<?php print __esc('Changing Permission Model Warning'); ?>';
	var permsHeader    = <?php print cacti_js_encode(__esc('Changing Permission Model will alter a users effective Graph ' .
		'permissions.')); ?>;
	var permsMessage   = <?php print cacti_js_encode(__esc('After you change the Graph Permission Model you should audit your ' .
		'Users and User Groups Effective Graph permission to ensure that you ' .
		'still have adequate control of your Graphs.  NOTE: If you want to ' .
		'restrict all Graphs at the Device or Graph Template Graph Permission ' .
		'Model, the default Graph Policy should be set to \'Deny\'.')); ?>;

	$(function() {
		$('#filter').keyup(function() {
			if (filterTimeout) {
				clearTimeout(filterTimeout);
			}

			filterTimeout = setTimeout(setupForm, 300);
		});

		setupForm();

		$('#clear').click(function(event) {
			loadUrl({url: 'settings.php?clear=true&filter='});
		});

		$('.subTab').find('a').click(function(event) {
			event.preventDefault();
			strURL = $(this).attr('href');
			strURL += (strURL.indexOf('?') > 0 ? '&':'?') + 'header=false';
			loadUrl({url: strURL, scroll: true, force: false, loadType: 'noheader'});
		});

		$('input[value="<?php print __esc('Save'); ?>"]').unbind().click(function(event) {
			event.preventDefault();

			if (parseInt($('#cron_interval').val()) < parseInt($('#poller_interval').val())) {
				$('#message_container').html('<div id="message" class="textError messageBox"><?php print __('Poller Interval must be less than Cron Interval'); ?></div>').show().delay(4000).slideUp('fast', function() {
					$('#message_container').empty();
				});
				return false;
			}

			event.preventDefault();
			var options = {
				url: 'settings.php?tab='+$('#tab'),
				redirect: (themeChanged == true || langRefresh == true) ?
					'auth_profile.php?action=noreturn' : '',
			}

			var data = $('input, select, textarea').prop('disabled', false).serialize();

			postUrl(options, data);
		});

		if (currentTab == 'general') {
			currentPerms       = $('#graph_auth_method').val();
			currentLangDetect  = $('#i18n_auto_detection').val();
			currentLanguage    = $('#i18n_default_language').val();
			currentLangSupport = $('#i18n_language_support').val();

			$('#graph_auth_method').change(function() {
				permsChanger();
			});

			$('#i18n_default_language, #i18n_auto_detection, #i18n_language_support').change(function() {
				langDetectionChanger();
			});
		} else if (currentTab == 'data') {
			$('#storage_location').change(function() {
				if ($(this).val() == '0') {
					$('#row_rrdp_header').hide();
					$('#row_rrdp_server').hide();
					$('#row_rrdp_port').hide();
					$('#row_rrdp_fingerprint').hide();
					$('#row_rrdp_header2').hide();
					$('#row_rrdp_load_balancing').hide();
					$('#row_rrdp_server_backup').hide();
					$('#row_rrdp_port_backup').hide();
					$('#row_rrdp_fingerprint_backup').hide();
				} else {
					$('#row_rrdp_header').show();
					$('#row_rrdp_server').show();
					$('#row_rrdp_port').show();
					$('#row_rrdp_fingerprint').show();
					$('#row_rrdp_header2').show();
					$('#row_rrdp_load_balancing').show();
					$('#row_rrdp_server_backup').show();
					$('#row_rrdp_port_backup').show();
					$('#row_rrdp_fingerprint_backup').show();
				}
			}).trigger('change');

			$('#extended_paths').change(function() {
				if ($(this).is(':checked')) {
					$('#row_extended_paths_type').show();
				} else {
					$('#row_extended_paths_type').hide();
				}
			}).trigger('change');
		} else if (currentTab == 'mail') {
			$('#row_settings_email_header div.formHeaderText').append('<div id="emailtest" class="emailtest"><?php print __('Send a Test Email'); ?></div>');
			$('#row_settings_oauth2_header div.formHeaderText').append('<div id="oauth2token" class="emailtest"><?php print __('Generate OAuth2 Refresh Token in new window'); ?></div>');

			initMail();

			$('#settings_how').change(function() {
				initMail();
			});

			$('#emailtest').click(function() {
				$.get('settings.php?action=send_test')
					.done(function(data) {
						$('body').append('<div id="testmail" title="<?php print __esc('Test Email Results'); ?>"></div>');
						$('#testmail').html(data);

						$('#testmail').dialog({
							autoOpen: false,
							modal: true,
							minHeight: 300,
							maxHeight: 600,
							height: 450,
							width: 500,
							autoOpen: true,
							show: {
								effect: 'appear',
								duration: 100
							},
							hide: {
								effect: 'appear',
								duration: 100
							}
						});
					})
					.fail(function(data) {
						getPresentHTTPError(data);
					});
			});

			$('#oauth2token').click(function() {
				window.open('<?php print read_config_option('settings_oauth2_redirect_uri'); ?>', '_blank');
			});
		} else if (currentTab == 'visual') {
			currentTheme = $('#selected_theme').val();

			initFonts();
			initRealtime();

			$('#font_method').change(function() {
				initFonts();
			});

			$('#selected_theme').change(function() {
				themeChanger();
			});

			$('#realtime_enabled').change(function() {
				initRealtime();
			});
		} else if (currentTab == 'snmp') {
			// Need to set this for global snmpv3 functions to remain sane between edits
			snmp_security_initialized = false;

			$('#snmp_version, #snmp_auth_protocol, #snmp_priv_protocol, #snmp_security_level').change(function() {
				setSNMP();
			});

			initAvail();
			$('#availability_method').change(function() {
				initAvail();
			});

			setSNMP();
		} else if (currentTab == 'authentication') {
			initAuth();
			initSearch();
			initGroupMember();

			$('#auth_method').change(function() {
				initAuth();
			});

			$('#ldap_mode').change(function() {
				initSearch();
			});

			$('#ldap_group_require').change(function() {
				initGroupMember();
			});
		} else if (currentTab == 'path') {
			initRRDClean();

			$('#rrd_autoclean').change(function() {
				initRRDClean();
			});

			if (cactiServerOS == 'win32') {
				$('#row_path_stderrlog').hide();
			}

			$('#rrd_autoclean_method').change(function() {
				initRRDClean();
			});
		} else if (currentTab == 'boost') {
			if (dataCollectors > 1) {
				$('#boost_rrd_update_enable').prop('checked', true);
				$('#boost_rrd_update_enable').prop('disabled', true);
				$('#boost_redirect').prop('checked', true);
				$('#boost_redirect').prop('disabled', true);
			}

			initBoostOD();
			initBoostCache();

			$('#boost_rrd_update_enable').change(function() {
				initBoostOD();
			});

			$('#boost_png_cache_enable').change(function() {
				initBoostCache();
			});
		}

		function initMail() {
			/* clear passwords */
			if ($('#settings_sendmail_path').val() != '') {
				smtpPath = $('#settings_sendmail_path').val();
			}

			$('#settings_smtp_password').val('');
			$('#settings_smtp_password_confirm').val('');

			switch($('#settings_how').val()) {
			case '0':
				$('#settings_sendmail_path').val('');
				$('#row_settings_sendmail_header').hide();
				$('#row_settings_sendmail_path').hide();
				$('#row_settings_smtp_header').hide();
				$('#row_settings_smtp_host').hide();
				$('#row_settings_smtp_port').hide();
				$('#row_settings_smtp_username').hide();
				$('#row_settings_smtp_password').hide();
				$('#row_settings_smtp_secure').hide();
				$('#row_settings_smtp_timeout').hide();
				$('#row_settings_oauth2_header').hide();
				$('#row_settings_oauth2_host').hide();
				$('#row_settings_oauth2_port').hide();
				$('#row_settings_oauth2_secure').hide();
				$('#row_settings_oauth2_timeout').hide();
				$('#row_settings_oauth2_from_email').hide();
				$('#row_settings_oauth2_client_id').hide();
				$('#row_settings_oauth2_client_secret').hide();
				$('#row_settings_oauth2_redirect_uri').hide();
				$('#row_settings_oauth2_provider').hide();
				$('#row_settings_oauth2_tenant_id').hide();
				$('#row_settings_oauth2_refresh_token').hide();
				break;
			case '1':
				if (smtpPath != '') {
					$('#settings_sendmail_path').val(smtpPath);
				}

				$('#row_settings_sendmail_header').show();
				$('#row_settings_sendmail_path').show();
				$('#row_settings_smtp_header').hide();
				$('#row_settings_smtp_host').hide();
				$('#row_settings_smtp_port').hide();
				$('#row_settings_smtp_username').hide();
				$('#row_settings_smtp_password').hide();
				$('#row_settings_smtp_secure').hide();
				$('#row_settings_smtp_timeout').hide();
				$('#row_settings_oauth2_header').hide();
				$('#row_settings_oauth2_host').hide();
				$('#row_settings_oauth2_port').hide();
				$('#row_settings_oauth2_secure').hide();
				$('#row_settings_oauth2_timeout').hide();
				$('#row_settings_oauth2_from_email').hide();
				$('#row_settings_oauth2_client_id').hide();
				$('#row_settings_oauth2_client_secret').hide();
				$('#row_settings_oauth2_redirect_uri').hide();
				$('#row_settings_oauth2_provider').hide();
				$('#row_settings_oauth2_tenant_id').hide();
				$('#row_settings_oauth2_refresh_token').hide();
				break;
			case '2':
				$('#settings_sendmail_path').val('');
				$('#row_settings_sendmail_header').hide();
				$('#row_settings_sendmail_path').hide();
				$('#row_settings_oauth2_header').hide();
				$('#row_settings_oauth2_host').hide();
				$('#row_settings_oauth2_port').hide();
				$('#row_settings_oauth2_secure').hide();
				$('#row_settings_oauth2_timeout').hide();
				$('#row_settings_oauth2_from_email').hide();
				$('#row_settings_oauth2_client_id').hide();
				$('#row_settings_oauth2_client_secret').hide();
				$('#row_settings_oauth2_redirect_uri').hide();
				$('#row_settings_oauth2_provider').hide();
				$('#row_settings_oauth2_tenant_id').hide();
				$('#row_settings_oauth2_refresh_token').hide();
				$('#row_settings_smtp_header').show();
				$('#row_settings_smtp_host').show();
				$('#row_settings_smtp_port').show();
				$('#row_settings_smtp_username').show();
				$('#row_settings_smtp_password').show();
				$('#row_settings_smtp_secure').show();
				$('#row_settings_smtp_timeout').show();
				break;
			case '3':
				$('#row_settings_sendmail_header').hide();
				$('#row_settings_sendmail_path').hide();
				$('#row_settings_smtp_header').hide();
				$('#row_settings_smtp_host').hide();
				$('#row_settings_smtp_port').hide();
				$('#row_settings_smtp_username').hide();
				$('#row_settings_smtp_password').hide();
				$('#row_settings_smtp_secure').hide();
				$('#row_settings_smtp_timeout').hide();
				$('#row_settings_oauth2_host').show();
				$('#row_settings_oauth2_port').show();
				$('#row_settings_oauth2_secure').show();
				$('#row_settings_oauth2_timeout').show();
				$('#row_settings_oauth2_header').show();
				$('#row_settings_oauth2_from_email').show();
				$('#row_settings_oauth2_client_id').show();
				$('#row_settings_oauth2_client_secret').show();
				$('#row_settings_oauth2_redirect_uri').show();
				$('#row_settings_oauth2_provider').show();
				$('#row_settings_oauth2_tenant_id').show();
				$('#row_settings_oauth2_refresh_token').show();
				break;
			}
		}
	});

	function setupForm() {
		if ($('#filter').val().length >= 1 && $('#filter').val != prevSearch) {
			$.getJSON('settings.php?action=search&filter='+$('#filter').val(), function(data) {
				if (data.tabs.length == 1 && data.tabs[0] != currentTab) {
					loadPage('settings.php?tab='+data.tabs[0]+'&filter='+$('#filter').val());
					return false;
				} else if (data.tabs.length > 0) {
					if (data.tabs.indexOf(currentTab) == -1) {
						loadUrl({url: 'settings.php?tab='+data.tabs[0]+'&filter='+$('#filter').val()});
						return false;
					}

					$('#settings').find('nav').show();
					$('#settings').find('.subTab').hide();
					$('#form_settings').find('div[id^="settings_"]').hide();
					$('#form_settings').find('[id^="row"]').hide();

					for (index of data.tabs) {
						$('#settings').find('#'+index+'.subTab').show();
						$('#form_settings').find('div[id^="settings_'+index+'"]').show();
					}

					for (index of data.spacers) {
						$('#form_settings').find('#row_'+index).show();
					}

					var stripe = 'odd';

					for (index of data.rows) {
						$('#form_settings').find('#row_'+index).show().removeClass('odd').removeClass('even').addClass(stripe);

						stripe = (stripe == 'odd' ? 'even':'odd');
					}
				} else {
					$('#settings').find('nav').show();
					$('#settings').find('.subTab').show();
					$('#form_settings').find('div[id^="settings_"]').show();
					$('#form_settings').find('tr[id^="row_"]').show();
				}

				$('#saveRowParent').show();
				$('#form_settings_wrap').show();
				$('#filter').focus();
			});

			prevSearch = $('#filter').val();
		} else {
			$('#settings').find('nav').show();
			$('#saveRowParent').show();
			$('#settings').find('.subTab').show();
			$('#form_settings_wrap').show();
			$('#filter').focus();
		}
	}

	function initBoostCache() {
		if ($('#boost_png_cache_enable').is(':checked')){
			$('#row_boost_png_cache_directory').show();
		} else {
			$('#row_boost_png_cache_directory').hide();
		}
	}

	function initBoostOD() {
		if ($('#boost_rrd_update_enable').is(':checked')){
			$('#row_boost_rrd_update_interval').show();
			$('#row_boost_parallel').show();
			$('#row_path_boost_log').show();
			$('#row_boost_rrd_update_max_records').show();
			$('#row_boost_rrd_update_max_records_per_select').show();
			$('#row_boost_rrd_update_string_length').show();
			$('#row_boost_poller_mem_limit').show();
			$('#row_boost_rrd_update_max_runtime').show();
			$('#row_boost_redirect').show();
		} else {
			$('#row_boost_rrd_update_interval').hide();
			$('#row_boost_parallel').hide();
			$('#row_path_boost_log').hide();
			$('#row_boost_rrd_update_max_records').hide();
			$('#row_boost_rrd_update_max_records_per_select').hide();
			$('#row_boost_rrd_update_string_length').hide();
			$('#row_boost_poller_mem_limit').hide();
			$('#row_boost_rrd_update_max_runtime').hide();
			$('#row_boost_redirect').hide();
		}
	}

	function themeChanger() {
		if ($('#selected_theme').val() != currentTheme) {
			themeChanged = true;
		} else {
			themeChanged = false;
		}
	}

	function langDetectionChanger() {
		var changed = currentLanguage != $('#i18n_default_language').val() ||
			currentLangDetect         != $('#i18n_auto_detection').val() ||
			currentLangSupport        != $('#i18n_language_support').val();

		if (changed) {
			langRefresh = true;
		} else {
			langRefresh = false;
		}
	}

	function permsChanger() {
		if ($('#graph_auth_method').val() != currentPerms) {
			raiseMessage(permsTitle, permsHeader, permsMessage, MESSAGE_LEVEL_MIXED);
		}
	}

	function initFonts() {
		if ($('#font_method').val() == 1) {
			$('#row_path_rrdtool_default_font').hide();
			$('#row_title_size').hide();
			$('#row_title_font').hide();
			$('#row_legend_size').hide();
			$('#row_legend_font').hide();
			$('#row_axis_size').hide();
			$('#row_axis_font').hide();
			$('#row_unit_size').hide();
			$('#row_unit_font').hide();
		} else {
			$('#row_path_rrdtool_default_font').show();
			$('#row_title_size').show();
			$('#row_legend_size').show();
			$('#row_axis_size').show();
			$('#row_unit_size').show();
			$('#row_title_font').show();
			$('#row_legend_font').show();
			$('#row_axis_font').show();
			$('#row_unit_font').show();
		}
	}

	function initRealtime() {
		if ($('#realtime_enabled').is(':checked')) {
			$('#row_realtime_gwindow').show();
			$('#row_realtime_interval').show();
			$('#row_realtime_cache_path').show();
		} else {
			$('#row_realtime_gwindow').hide();
			$('#row_realtime_interval').hide();
			$('#row_realtime_cache_path').hide();
		}
	}

	function initRRDClean() {
		if ($('#rrd_autoclean').is(':checked')) {
			$('#row_rrd_autoclean_method').show();
			if ($('#rrd_autoclean_method').val() == '3') {
				if (rrdArchivePath != '') {
					$('#rrd_archive').val(rrdArchivePath);
				}
				$('#row_rrd_archive').show();
			} else {
				if ($('#rrd_archive').val() != '') {
					rrdArchivePath = $('#rrd_archive').val();
				}
				$('#row_rrd_archive').hide();
				$('#rrd_archive').val('');
			}
		} else {
			if ($('#rrd_archive').val() != '') {
				rrdArchivePath = $('#rrd_archive').val();
			}
			$('#rrd_archive').val('');

			$('#row_rrd_autoclean_method').hide();
			$('#row_rrd_archive').hide();
		}
	}

	function initSearch() {
		if ($('#auth_method').val() == 3) {
			switch($('#ldap_mode').val()) {
			case '0':
				$('#row_ldap_search_base_header').hide();
				$('#row_ldap_search_base').hide();
				$('#row_ldap_search_filter').hide();
				$('#row_ldap_specific_dn').hide();
				$('#row_ldap_specific_password').hide();
				break;
			case '1':
				$('#row_ldap_search_base_header').show();
				$('#row_ldap_search_base').show();
				$('#row_ldap_search_filter').show();
				$('#row_ldap_specific_dn').hide();
				$('#row_ldap_specific_password').hide();
				break;
			case '2':
				$('#row_ldap_search_base_header').show();
				$('#row_ldap_search_base').show();
				$('#row_ldap_search_filter').show();
				$('#row_ldap_specific_dn').show();
				$('#row_ldap_specific_password').show();
				break;
			}
		} else {
			$('#row_ldap_search_base_header').hide();
			$('#row_ldap_search_base').hide();
			$('#row_ldap_search_filter').hide();
			$('#row_ldap_specific_dn').hide();
			$('#row_ldap_specific_password').hide();
		}
	}

	function initGroupMember() {
		if ($('#auth_method').val() == 3) {
			if ($('#ldap_group_require').is(':checked')) {
				$('#row_ldap_group_header').show();
				$('#row_ldap_group_dn').show();
				$('#row_ldap_group_attrib').show();
				$('#row_ldap_group_member_type').show();
			} else {
				$('#row_ldap_group_header').hide();
				$('#row_ldap_group_dn').hide();
				$('#row_ldap_group_attrib').hide();
				$('#row_ldap_group_member_type').hide();
			}
		} else {
			$('#row_ldap_group_header').hide();
			$('#row_ldap_group_dn').hide();
			$('#row_ldap_group_attrib').hide();
			$('#row_ldap_group_member_type').hide();
		}
	}

	function initAuth() {
		switch($('#auth_method').val()) {
		case '0': // None
			$('#row_auth_method').show();
			$('#row_auth_cache_enabled').hide();
			$('#row_special_users_header').hide();
			$('#row_admin_user').hide();
			$('#row_guest_user').hide();
			$('#row_user_template').hide();
			$('#row_ldap_general_header').hide();
			$('#row_ldap_server').hide();
			$('#row_ldap_port').hide();
			$('#row_ldap_port_ssl').hide();
			$('#row_ldap_version').hide();
			$('#row_ldap_encryption').hide();
			$('#row_ldap_referrals').hide();
			$('#row_ldap_mode').hide();
			$('#row_ldap_dn').hide();
			$('#row_ldap_group_require').hide();
			$('#row_ldap_attrib').hide();
			$('#row_ldap_member_type').hide();
			$('#row_ldap_group_header').hide();
			$('#row_ldap_group_dn').hide();
			$('#row_ldap_group_attrib').hide();
			$('#row_ldap_group_member_type').hide();
			$('#row_ldap_search_base_header').hide();
			$('#row_ldap_search_base').hide();
			$('#row_ldap_search_filter').hide();
			$('#row_ldap_specific_dn').hide();
			$('#row_ldap_specific_password').hide();
			$('#row_cn_header').hide();
			$('#row_cn_full_name').hide();
			$('#row_cn_email').hide();
			$('#row_secpass_header').hide();
			$('#row_secpass_minlen').hide();
			$('#row_secpass_reqmixcase').hide();
			$('#row_secpass_reqnum').hide();
			$('#row_secpass_reqspec').hide();
			$('#row_secpass_forceold').hide();
			$('#row_secpass_expireaccount').hide();
			$('#row_secpass_expirepass').hide();
			$('#row_secpass_history').hide();
			$('#row_secpass_lock_header').hide();
			$('#row_secpass_lockfailed').hide();
			$('#row_secpass_unlocktime').hide();
			$('#row_basic_header').hide();
			$('#row_basic_auth_fail_message').hide();
			$('#row_path_basic_mapfile').hide();
			$('#row_ldap_network_timeout').hide();
			$('#row_ldap_bind_timeout').hide();
			$('#row_ldap_tls_certificate').hide();
			break;
		case '1': // Builtin
			$('#row_auth_method').show();
			$('#row_auth_cache_enabled').show();
			$('#row_special_users_header').show();
			$('#row_admin_user').show();
			$('#row_guest_user').show();
			$('#row_user_template').show();
			$('#row_ldap_general_header').hide();
			$('#row_ldap_server').hide();
			$('#row_ldap_port').hide();
			$('#row_ldap_port_ssl').hide();
			$('#row_ldap_version').hide();
			$('#row_ldap_encryption').hide();
			$('#row_ldap_referrals').hide();
			$('#row_ldap_mode').hide();
			$('#row_ldap_dn').hide();
			$('#row_ldap_group_require').hide();
			$('#row_ldap_attrib').hide();
			$('#row_ldap_member_type').hide();
			$('#row_ldap_group_header').hide();
			$('#row_ldap_group_dn').hide();
			$('#row_ldap_group_attrib').hide();
			$('#row_ldap_group_member_type').hide();
			$('#row_ldap_search_base_header').hide();
			$('#row_ldap_search_base').hide();
			$('#row_ldap_search_filter').hide();
			$('#row_ldap_specific_dn').hide();
			$('#row_ldap_specific_password').hide();
			$('#row_cn_header').hide();
			$('#row_cn_full_name').hide();
			$('#row_cn_email').hide();
			$('#row_secpass_header').show();
			$('#row_secpass_minlen').show();
			$('#row_secpass_reqmixcase').show();
			$('#row_secpass_reqnum').show();
			$('#row_secpass_reqspec').show();
			$('#row_secpass_forceold').show();
			$('#row_secpass_expireaccount').show();
			$('#row_secpass_expirepass').show();
			$('#row_secpass_history').show();
			$('#row_secpass_lock_header').show();
			$('#row_secpass_lockfailed').show();
			$('#row_secpass_unlocktime').show();
			$('#row_basic_header').hide();
			$('#row_basic_auth_fail_message').hide();
			$('#row_path_basic_mapfile').hide();
			$('#row_ldap_network_timeout').hide();
			$('#row_ldap_bind_timeout').hide();
			$('#row_ldap_tls_certificate').hide();
			$('#row_ldap_debug').hide();
			break;
		case '2': // Web Basic
			$('#row_auth_method').show();
			$('#row_auth_cache_enabled').hide();
			$('#row_special_users_header').show();
			$('#row_admin_user').show();
			$('#row_guest_user').show();
			$('#row_user_template').show();
			$('#row_ldap_general_header').hide();
			$('#row_ldap_server').hide();
			$('#row_ldap_port').hide();
			$('#row_ldap_port_ssl').hide();
			$('#row_ldap_version').hide();
			$('#row_ldap_encryption').hide();
			$('#row_ldap_referrals').hide();
			$('#row_ldap_mode').hide();
			$('#row_ldap_dn').hide();
			$('#row_ldap_group_require').hide();
			$('#row_ldap_attrib').hide();
			$('#row_ldap_member_type').hide();
			$('#row_ldap_group_header').hide();
			$('#row_ldap_group_dn').hide();
			$('#row_ldap_group_attrib').hide();
			$('#row_ldap_group_member_type').hide();
			$('#row_ldap_search_base_header').hide();
			$('#row_ldap_search_base').hide();
			$('#row_ldap_search_filter').hide();
			$('#row_ldap_specific_dn').hide();
			$('#row_ldap_specific_password').hide();
			$('#row_cn_header').hide();
			$('#row_cn_full_name').hide();
			$('#row_cn_email').hide();
			$('#row_secpass_header').hide();
			$('#row_secpass_minlen').hide();
			$('#row_secpass_reqmixcase').hide();
			$('#row_secpass_reqnum').hide();
			$('#row_secpass_reqspec').hide();
			$('#row_secpass_forceold').hide();
			$('#row_secpass_expireaccount').hide();
			$('#row_secpass_expirepass').hide();
			$('#row_secpass_history').hide();
			$('#row_secpass_lock_header').hide();
			$('#row_secpass_lockfailed').hide();
			$('#row_secpass_unlocktime').hide();
			$('#row_basic_header').show();
			$('#row_basic_auth_fail_message').show();
			$('#row_path_basic_mapfile').show();
			$('#row_ldap_network_timeout').hide();
			$('#row_ldap_bind_timeout').hide();
			$('#row_ldap_tls_certificate').hide();
			$('#row_ldap_debug').hide();
			break;
		case '4': // Multiple Domains
			$('#row_auth_method').show();
			$('#row_auth_cache_enabled').show();
			$('#row_special_users_header').show();
			$('#row_admin_user').show();
			$('#row_guest_user').show();
			$('#row_user_template').hide();
			$('#row_ldap_general_header').show();
			$('#row_ldap_server').show();
			$('#row_ldap_port').show();
			$('#row_ldap_port_ssl').show();
			$('#row_ldap_version').hide();
			$('#row_ldap_encryption').hide();
			$('#row_ldap_referrals').hide();
			$('#row_ldap_mode').hide();
			$('#row_ldap_dn').hide();
			$('#row_ldap_group_require').hide();
			$('#row_ldap_attrib').hide();
			$('#row_ldap_member_type').hide();
			$('#row_ldap_group_header').hide();
			$('#row_ldap_group_dn').hide();
			$('#row_ldap_group_attrib').hide();
			$('#row_ldap_group_member_type').hide();
			$('#row_ldap_search_base_header').hide();
			$('#row_ldap_search_base').hide();
			$('#row_ldap_search_filter').hide();
			$('#row_ldap_specific_dn').hide();
			$('#row_ldap_specific_password').hide();
			$('#row_cn_header').hide();
			$('#row_cn_full_name').hide();
			$('#row_cn_email').hide();
			$('#row_secpass_header').show();
			$('#row_secpass_minlen').show();
			$('#row_secpass_reqmixcase').show();
			$('#row_secpass_reqnum').show();
			$('#row_secpass_reqspec').show();
			$('#row_secpass_forceold').show();
			$('#row_secpass_expireaccount').show();
			$('#row_secpass_expirepass').show();
			$('#row_secpass_history').show();
			$('#row_secpass_lock_header').show();
			$('#row_secpass_lockfailed').show();
			$('#row_secpass_unlocktime').show();
			$('#row_basic_header').hide();
			$('#row_basic_auth_fail_message').hide();
			$('#row_path_basic_mapfile').hide();
			$('#row_ldap_network_timeout').show();
			$('#row_ldap_bind_timeout').show();
			$('#row_ldap_tls_certificate').show();
			$('#row_ldap_debug').show();
			break;
		case '3': // Single Domain
			$('#row_auth_method').show();
			$('#row_auth_cache_enabled').show();
			$('#row_special_users_header').show();
			$('#row_admin_user').show();
			$('#row_guest_user').show();
			$('#row_user_template').show();
			$('#row_ldap_general_header').show();
			$('#row_ldap_server').show();
			$('#row_ldap_port').show();
			$('#row_ldap_port_ssl').show();
			$('#row_ldap_version').show();
			$('#row_ldap_encryption').show();
			$('#row_ldap_referrals').show();
			$('#row_ldap_mode').show();
			$('#row_ldap_dn').show();
			$('#row_ldap_group_require').show();
			$('#row_ldap_attrib').show();
			$('#row_ldap_member_type').show();
			$('#row_ldap_group_header').show();
			$('#row_ldap_group_dn').show();
			$('#row_ldap_group_attrib').show();
			$('#row_ldap_group_member_type').show();
			$('#row_ldap_search_base_header').show();
			$('#row_ldap_search_base').show();
			$('#row_ldap_search_filter').show();
			$('#row_ldap_specific_dn').show();
			$('#row_ldap_specific_password').show();
			$('#row_cn_header').show();
			$('#row_cn_full_name').show();
			$('#row_cn_email').show();
			$('#row_secpass_header').show();
			$('#row_secpass_minlen').show();
			$('#row_secpass_reqmixcase').show();
			$('#row_secpass_reqnum').show();
			$('#row_secpass_reqspec').show();
			$('#row_secpass_forceold').show();
			$('#row_secpass_expireaccount').show();
			$('#row_secpass_expirepass').show();
			$('#row_secpass_history').show();
			$('#row_secpass_lock_header').show();
			$('#row_secpass_lockfailed').show();
			$('#row_secpass_unlocktime').show();
			$('#row_basic_header').hide();
			$('#row_basic_auth_fail_message').hide();
			$('#row_path_basic_mapfile').hide();
			$('#row_ldap_network_timeout').show();
			$('#row_ldap_bind_timeout').show();
			$('#row_ldap_tls_certificate').show();
			$('#row_ldap_debug').show();
			initSearch();
			initGroupMember();
			break;
		default:
			$('#row_auth_method').show();
			$('#row_auth_cache_enabled').show();
			$('#row_special_users_header').show();
			$('#row_admin_user').show();
			$('#row_guest_user').show();
			$('#row_user_template').show();
			$('#row_ldap_general_header').hide();
			$('#row_ldap_server').hide();
			$('#row_ldap_port').hide();
			$('#row_ldap_port_ssl').hide();
			$('#row_ldap_version').hide();
			$('#row_ldap_encryption').hide();
			$('#row_ldap_referrals').hide();
			$('#row_ldap_mode').hide();
			$('#row_ldap_dn').hide();
			$('#row_ldap_group_require').hide();
			$('#row_ldap_attrib').hide();
			$('#row_ldap_member_type').hide();
			$('#row_ldap_group_header').hide();
			$('#row_ldap_group_dn').hide();
			$('#row_ldap_group_attrib').hide();
			$('#row_ldap_group_member_type').hide();
			$('#row_ldap_search_base_header').hide();
			$('#row_ldap_search_base').hide();
			$('#row_ldap_search_filter').hide();
			$('#row_ldap_specific_dn').hide();
			$('#row_ldap_specific_password').hide();
			$('#row_cn_header').hide();
			$('#row_cn_full_name').hide();
			$('#row_cn_email').hide();
			$('#row_secpass_header').show();
			$('#row_secpass_minlen').show();
			$('#row_secpass_reqmixcase').show();
			$('#row_secpass_reqnum').show();
			$('#row_secpass_reqspec').show();
			$('#row_secpass_forceold').show();
			$('#row_secpass_expireaccount').show();
			$('#row_secpass_expirepass').show();
			$('#row_secpass_history').show();
			$('#row_secpass_lock_header').show();
			$('#row_secpass_lockfailed').show();
			$('#row_secpass_unlocktime').show();
			$('#row_basic_header').hide();
			$('#row_basic_auth_fail_message').hide();
			$('#row_path_basic_mapfile').hide();
			$('#row_ldap_network_timeout').hide();
			$('#row_ldap_bind_timeout').hide();
			$('#row_ldap_tls_certificate').hide();
			$('#row_ldap_debug').hide();
			break;
		}
	}

	function initAvail() {
		switch($('#availability_method').val()) {
		case '0':
			$('#row_ping_method').hide();
			$('#row_ping_port').hide();
			$('#row_ping_timeout').hide();
			$('#row_ping_retries').hide();
			break;
		case '1':
		case '4':
			$('#row_ping_method').show();
			$('#row_ping_port').show();
			$('#row_ping_timeout').show();
			$('#row_ping_retries').show();
			break;
		case '3':
			$('#row_ping_method').show();
			$('#row_ping_port').show();
			$('#row_ping_timeout').show();
			$('#row_ping_retries').show();
			break;
		case '2':
		case '5':
		case '6':
			$('#row_ping_method').hide();
			$('#row_ping_port').hide();
			$('#row_ping_timeout').show();
			$('#row_ping_retries').show();
			break;
		}
	}

	</script>
	<?php

	api_plugin_hook('settings_bottom');

	bottom_footer();
}

function validate_settings_filter() : void {
	// ================= input validation and session storage =================
	$filters = [
		'filter' => [
			'filter'  => FILTER_DEFAULT,
			'pageset' => true,
			'default' => ''
		]
	];

	validate_store_request_vars($filters, 'sess_settings');
	// ================= input validation =================
}

function settings_search() : void {
	global $settings;

	validate_settings_filter();

	$filter = grv('filter');

	$response = [
		'tabs'    => [],
		'rows'    => [],
		'spacers' => []
	];

	$last_spacer = '';
	$tabs        = [];
	$spacers     = [];

	foreach ($settings as $tab => $page) {
		foreach ($page as $field_name => $field_array) {
			if ($field_array['method'] == 'spacer') {
				$last_spacer = $field_name;
			} elseif ($field_array['method'] != 'hidden') {
				$friendly_key    = false;
				$description_key = false;

				if (isset($field_array['friendly_name'])) {
					if (stristr($field_array['friendly_name'], $filter) !== false) {
						$friendly_key = true;
					} else {
						$friendly_key = false;
					}
				} else {
					$friendly_key = false;
				}

				if (isset($field_array['description'])) {
					if (stristr($field_array['description'], $filter) !== false) {
						$description_key = true;
					} else {
						$description_key = false;
					}
				} else {
					$description_key = false;
				}

				if ($friendly_key !== false || $description_key !== false) {
					$tabs[]             = $tab;
					$response['rows'][] = $field_name;

					if ($last_spacer != '') {
						$spacers[] = $last_spacer;
					}
				}
			}
		}
	}

	if (cacti_sizeof($tabs)) {
		$response['tabs'] = array_values(array_unique($tabs, SORT_STRING));
	}

	if (cacti_sizeof($spacers)) {
		$response['spacers'] = array_values(array_unique($spacers, SORT_STRING));
	}

	print json_encode($response);
}

function save_settings() : void {
	global $settings, $local_db_cnn_id;

	$errors  = [];
	$inserts = [];

	require_once(CACTI_PATH_LIBRARY . '/CactiSettings.php');

	// Build a snapshot of posted values keyed by setting name using Cacti's
	// request-var helpers (gnrv) instead of touching $_POST directly. Only
	// fields declared in the active tab are forwarded; the validator already
	// ignores unknown keys so no behavior changes.
	$tab      = (string) grv('tab');
	$snapshot = [];

	if (isset($settings[$tab]) && is_array($settings[$tab])) {
		foreach ($settings[$tab] as $field_name => $field_array) {
			if (!is_string($field_name)) {
				continue;
			}

			$snapshot[$field_name] = gnrv($field_name);

			if (isset($field_array['items']) && is_array($field_array['items'])) {
				foreach ($field_array['items'] as $sub_name => $sub_def) {
					if (is_string($sub_name)) {
						$snapshot[$sub_name] = gnrv($sub_name);
					}
				}
			}
		}
	}

	$violations = CactiSettings::validate($snapshot, $settings);

	if (cacti_sizeof($violations) > 0) {
		foreach ($violations as $name => $message) {
			$_SESSION['sess_error_fields'][$name] = $name;
			$_SESSION['sess_field_values'][$name] = isset($snapshot[$name]) && is_scalar($snapshot[$name]) ? $snapshot[$name] : '';

			raise_message(
				'cacti_settings_' . $name,
				__esc('Setting \'%s\': %s', $name, $message),
				MESSAGE_LEVEL_ERROR
			);
		}

		header('Location: settings.php?tab=' . urlencode($tab));
		exit;
	}

	foreach ($settings[grv('tab')] as $field_name => $field_array) {
		if (($field_array['method'] == 'header') || ($field_array['method'] == 'spacer')) {
			// do nothing
		} elseif ($field_array['method'] == 'checkbox') {
			if (isrv($field_name)) {
				$inserts[] = '(' . db_qstr($field_name) . ', "on")';
				db_execute_prepared("REPLACE INTO settings
					(name, value)
					VALUES (?, 'on')",
					[$field_name]);
			} else {
				$inserts[] = '(' . db_qstr($field_name) . ', "")';
				db_execute_prepared("REPLACE INTO settings
					(name, value)
					VALUES (?, '')",
					[$field_name]);
			}
		} elseif ($field_array['method'] == 'checkbox_group') {
			foreach ($field_array['items'] as $sub_field_name => $sub_field_array) {
				if (isrv($sub_field_name)) {
					$inserts[] = '(' . db_qstr($field_name) . ', "on")';
					db_execute_prepared("REPLACE INTO settings
					(name, value)
					VALUES (?, 'on')",
						[$sub_field_name]);
				} else {
					$inserts[] = '(' . db_qstr($field_name) . ', "on")';
					db_execute_prepared("REPLACE INTO settings
					(name, value)
					VALUES (?, '')",
						[$sub_field_name]);
				}
			}
		} elseif ($field_array['method'] == 'dirpath') {
			if (gnrv($field_name) != '' && !is_dir(gnrv($field_name))) {
				$_SESSION['sess_error_fields'][$field_name] = $field_name;
				$_SESSION['sess_field_values'][$field_name] = gnrv($field_name);
				$errors[8]                                  = 8;
			} else {
				if (grv('tab') == 'path' && is_remote_path_setting($field_name)) {
					db_execute_prepared('REPLACE INTO settings
						(name, value)
						VALUES (?, ?)',
						[$field_name, gnrv($field_name)], true, $local_db_cnn_id);
				} else {
					$inserts[] = '(' . db_qstr($field_name) . ', ' . db_qstr(gnrv($field_name)) . ')';
					db_execute_prepared('REPLACE INTO settings
						(name, value)
						VALUES (?, ?)',
						[$field_name, gnrv($field_name)]);
				}
			}
		} elseif ($field_array['method'] == 'filepath') {
			if (isset($field_array['file_type']) &&
				$field_array['file_type'] == 'binary' &&
				gnrv($field_name) != '' &&
				file_exists(gnrv($field_name)) === false) {
				$_SESSION['sess_error_fields'][$field_name] = $field_name;
				$_SESSION['sess_field_values'][$field_name] = gnrv($field_name);
				$errors[36]                                 = 36;
			} else {
				$continue = true;

				if ($field_name == 'path_cactilog' || $field_name == 'path_stderrlog' || $field_name == 'path_boost_log') {
					$extension = pathinfo(gnrv($field_name), PATHINFO_EXTENSION);

					if ($extension != 'log') {
						$_SESSION['sess_error_fields'][$field_name] = $field_name;
						$_SESSION['sess_field_values'][$field_name] = gnrv($field_name);
						$errors[9]                                  = 9;
						$continue                                   = false;
					}
				} elseif (gnrv($field_name) != '' && !is_valid_pathname(gnrv($field_name))) {
					$_SESSION['sess_error_fields'][$field_name] = $field_name;
					$_SESSION['sess_field_values'][$field_name] = gnrv($field_name);
					$errors[36]                                 = 36;
				}

				if ($continue) {
					if (grv('tab') == 'path' && is_remote_path_setting($field_name)) {
						db_execute_prepared('REPLACE INTO settings
							(name, value)
							VALUES (?, ?)',
							[$field_name, gnrv($field_name)], true, $local_db_cnn_id);
					} else {
						$inserts[] = '(' . db_qstr($field_name) . ', ' . db_qstr(gnrv($field_name)) . ')';
						db_execute_prepared('REPLACE INTO settings
							(name, value)
							VALUES (?, ?)',
							[$field_name, gnrv($field_name)]);
					}
				}
			}
		} elseif ($field_array['method'] == 'textbox_password') {
			if (isrv($field_name . '_confirm') && gnrv($field_name) != gnrv($field_name . '_confirm')) {
				$_SESSION['sess_error_fields'][$field_name] = $field_name;
				$_SESSION['sess_field_values'][$field_name] = gnrv($field_name);
				$errors[4]                                  = 4;

				break;
			}

			if (!ierv($field_name)) {
				$inserts[] = '(' . db_qstr($field_name) . ', ' . db_qstr(gnrv($field_name)) . ')';
				db_execute_prepared('REPLACE INTO settings
					(name, value)
					VALUES (?, ?)',
					[$field_name, gnrv($field_name)]);
			}
		} elseif ((isset($field_array['items'])) && (is_array($field_array['items']))) {
			foreach ($field_array['items'] as $sub_field_name => $sub_field_array) {
				if (isrv($sub_field_name)) {
					$inserts[] = '(' . db_qstr($field_name) . ', ' . db_qstr(gnrv($sub_field_name)) . ')';
					db_execute_prepared('REPLACE INTO settings
					(name, value)
					VALUES (?, ?)',
						[$sub_field_name, gnrv($sub_field_name)]);
				}
			}
		} elseif ($field_array['method'] == 'drop_multi') {
			if (isrv($field_name)) {
				if (is_array(gnrv($field_name))) {
					$inserts[] = '(' . db_qstr($field_name) . ', ' . db_qstr(implode(',', gnrv($field_name))) . ')';
					db_execute_prepared('REPLACE INTO settings
					(name, value)
					VALUES (?, ?)',
						[$field_name, implode(',', gnrv($field_name))]);
				} else {
					$inserts[] = '(' . db_qstr($field_name) . ', ' . db_qstr(gnrv($field_name)) . ')';
					db_execute_prepared('REPLACE INTO settings
					(name, value)
					VALUES (?, ?)',
						[$field_name, gnrv($field_name)]);
				}
			} else {
				$inserts[] = '(' . db_qstr($field_name) . ', "")';
				db_execute_prepared('REPLACE INTO settings
					(name, value)
					VALUES (?, "")',
					[$field_name]);
			}
		} elseif (isrv($field_name)) {
			if ($field_array['method'] == 'textbox' && isset($field_array['filter'])) {
				if (isset($field_array['options'])) {
					$value = filter_var(gnrv($field_name), $field_array['filter'], $field_array['options']);
				} else {
					$value = filter_var(gnrv($field_name), $field_array['filter']);
				}

				if ($value === false) {
					$_SESSION['sess_error_fields'][$field_name] = $field_name;
					$_SESSION['sess_field_values'][$field_name] = gnrv($field_name);
					$errors[3]                                  = 3;

					continue;
				}
			}

			if (is_array(gnrv($field_name))) {
				$inserts[] = '(' . db_qstr($field_name) . ', ' . db_qstr(implode(',', gnrv($field_name))) . ')';
				db_execute_prepared('REPLACE INTO settings
					(name, value)
					VALUES (?, ?)',
					[$field_name, implode(',', gnrv($field_name))]);
			} else {
				$inserts[] = '(' . db_qstr($field_name) . ', ' . db_qstr(gnrv($field_name)) . ')';
				db_execute_prepared('REPLACE INTO settings
					(name, value)
					VALUES (?, ?)',
					[$field_name, gnrv($field_name)]);
			}
		}

		if ($field_name == 'auth_method') {
			if (gnrv($field_name) == '2') {
				db_execute('TRUNCATE TABLE user_auth_cache');
			}
		}
	}

	if (isrv('log_verbosity')) {
		if (!isrv('selective_debug')) {
			$inserts[] = '("selective_debug", "")';
			db_execute('REPLACE INTO settings
				(name, value)
				VALUES ("selective_debug", "")');
		}

		if (!isrv('selective_plugin_debug')) {
			$inserts[] = '("selective_plugin_debug", "")';
			db_execute('REPLACE INTO settings
				(name, value)
				VALUES ("selective_plugin_debug", "")');
		}
	}

	// Disable template user from being able to login
	if (isrv('user_template')) {
		db_execute_prepared('UPDATE user_auth
			SET enabled=""
			WHERE id = ?',
			[gnrv('user_template')]);
	}

	// Update snmpcache
	snmpagent_global_settings_update();

	api_plugin_hook_function('global_settings_update');

	$gone_time = read_config_option('poller_interval') * 2;

	$pollers = array_rekey(
		db_fetch_assoc('SELECT
			id,
			UNIX_TIMESTAMP() - UNIX_TIMESTAMP(last_status) AS last_polled
			FROM poller
			WHERE id > 1
			AND disabled=""'),
		'id', 'last_polled'
	);

	if (POLLER_ID > 1) {
		if (grv('tab') == 'path') {
			raise_message('poller_paths');
		}
	}

	if (cacti_sizeof($errors) == 0) {
		if (cacti_sizeof($pollers) && POLLER_ID == 1) {
			$sql = 'INSERT INTO settings
				(name, value)
				VALUES ' . implode(', ', $inserts) . '
				ON DUPLICATE KEY UPDATE value=VALUES(value)';

			foreach ($pollers as $p => $t) {
				if ($t > $gone_time) {
					raise_message('poller_' . $p, __esc('Settings save to Data Collector %d skipped due to heartbeat.', $p), MESSAGE_LEVEL_WARN);
				} else {
					$rcnn_id = poller_connect_to_remote($p);

					if ($rcnn_id) {
						if (db_execute($sql, false, $rcnn_id) === false) {
							$rcnn_id = false;
						}
					}

					// check if we still have rcnn_id, if it's now become false, we had a problem
					if (!$rcnn_id) {
						raise_message('poller_' . $p, __esc('Settings save to Data Collector %d Failed.', $p), MESSAGE_LEVEL_ERROR);
					}
				}
			}

			raise_message(42);
		} else {
			raise_message(1);
		}
	} else {
		raise_message(35);

		foreach ($errors as $error) {
			raise_message($error);
		}
	}

	// reset local settings cache so the user sees the new settings
	kill_session_var('sess_config_array');

	if (isrv('header') && gnrv('header') == 'false') {
		header('Location: settings.php?header=false&tab=' . grv('tab'));
	} else {
		header('Location: settings.php?tab=' . grv('tab'));
	}
}