<?php

declare(strict_types = 1);

/*

+-------------------------------------------------------------------------+

| 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/ |

+-------------------------------------------------------------------------+

*/

/**

* Render default monitor grouping output with active filters applied.

*

* @return string

*/

function renderDefault(): string {

global $maxchars;

$result = '';

$sql_where = '';

$sql_join = '';

$sql_limit = '';

$sql_order = 'ORDER BY description';

$rows = get_request_var('rows');

if ($rows == '-1') {

$rows = read_user_setting('monitor_rows');

}

if (!is_numeric($rows)) {

$rows = read_config_option('num_rows_table');

}

if (get_request_var('view') == 'list') {

$sql_order = get_order_string();

}

renderWhereJoin($sql_where, $sql_join);

$poller_interval = read_config_option('poller_interval');

$sql_limit = ' LIMIT ' . ($rows * (get_request_var('page') - 1)) . ',' . $rows;

$hosts_sql = ("SELECT DISTINCT h.*, IFNULL(s.name,' " . __('Non-Site Device', 'monitor') . " ') AS site_name,

CAST(IF(availability_method = 0, '0',

IF(status_event_count > 0 AND status IN (1, 2), status_event_count*$poller_interval,

IF(UNIX_TIMESTAMP(status_rec_date) < 943916400 AND status IN (0, 3), total_polls*$poller_interval,

IF(UNIX_TIMESTAMP(status_rec_date) > 943916400, UNIX_TIMESTAMP() - UNIX_TIMESTAMP(status_rec_date),

IF(snmp_sysUptimeInstance>0 AND snmp_version > 0, snmp_sysUptimeInstance/100, UNIX_TIMESTAMP()

))))) AS unsigned) AS instate

FROM host AS h

LEFT JOIN sites AS s

ON h.site_id = s.id

$sql_join

$sql_where

$sql_order

$sql_limit");

$hosts = db_fetch_assoc($hosts_sql);

$total_rows = db_fetch_cell("SELECT COUNT(DISTINCT h.id)

FROM host AS h

LEFT JOIN sites AS s

ON h.site_id = s.id

$sql_join

$sql_where");

if (cacti_sizeof($hosts)) {

// Determine the correct width of the cell

$maxlen = 10;

if (get_request_var('view') == 'default') {

$maxlen = (int) db_fetch_cell("SELECT MAX(LENGTH(description))

FROM host AS h

$sql_join

$sql_where");

}

$maxlen = getMonitorTrimLength($maxlen);

$function = 'renderHeader' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

// Call the custom render_header_ function

$result .= $function($total_rows, $rows);

}

$count = 0;

foreach ($hosts as $host) {

if (is_device_allowed($host['id'])) {

$result .= renderHost($host, true, $maxlen);

}

$count++;

}

$function = 'renderFooter' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

// Call the custom render_footer_ function

$result .= $function($total_rows, $rows);

}

}

return $result;

}

/**

* Render host output grouped by site.

*

* @return string

*/

function renderSite(): string {

global $maxchars;

$result = '';

$sql_where = '';

$sql_join = '';

$sql_limit = '';

$rows = get_request_var('rows');

if ($rows == '-1') {

$rows = read_user_setting('monitor_rows');

}

if (!is_numeric($rows)) {

$rows = read_config_option('num_rows_table');

}

renderWhereJoin($sql_where, $sql_join);

$sql_limit = ' LIMIT ' . ($rows * (get_request_var('page') - 1)) . ',' . $rows;

$hosts_sql = ("SELECT DISTINCT h.*, IFNULL(s.name,' " . __('Non-Site Devices', 'monitor') . " ') AS site_name

FROM host AS h

LEFT JOIN sites AS s

ON s.id = h.site_id

$sql_join

$sql_where

ORDER BY site_name, description

$sql_limit");

$hosts = db_fetch_assoc($hosts_sql);

$ctemp = -1;

$ptemp = -1;

if (cacti_sizeof($hosts)) {

$suppressGroups = false;

$function = 'renderSuppressgroups' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

$suppressGroups = $function();

}

$function = 'renderHeader' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

// Call the custom render_header_ function

$result .= $function();

$suppressGroups = true;

}

foreach ($hosts as $index => $host) {

if (is_device_allowed($host['id'])) {

$host_ids[] = $host['id'];

} else {

unset($hosts[$index]);

}

}

// Determine the correct width of the cell

$maxlen = 10;

if (get_request_var('view') == 'default') {

$maxlen = db_fetch_cell('SELECT MAX(LENGTH(description))

FROM host AS h

WHERE id IN (' . implode(',', $host_ids) . ')');

}

$maxlen = getMonitorTrimLength($maxlen);

$class = get_request_var('size');

$csuffix = get_request_var('view');

if ($csuffix == 'default') {

$csuffix = '';

}

foreach ($hosts as $host) {

$ctemp = $host['site_id'];

if (!$suppressGroups) {

if ($ctemp != $ptemp && $ptemp > 0) {

$result .= '</div>';

}

if ($ctemp != $ptemp) {

$result .= "<div class='monitorTableHeader'>

<div class='navBarNavigation'>

<div class='navBarNavigationNone'>" . html_escape($host['site_name']) . "</div>

</div>

</div>

<div class='monitor_container'>";

}

}

$result .= renderHost($host, true, $maxlen);

if ($ctemp != $ptemp) {

$ptemp = $ctemp;

}

}

if ($ptemp == $ctemp && !$suppressGroups) {

$result .= '</div>';

}

$function = 'renderFooter' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

// Call the custom render_footer_ function

$result .= $function();

}

}

return $result;

}

/**

* Render host output grouped by host template.

*

* @return string

*/

function renderTemplate(): string {

global $maxchars;

$result = '';

$sql_where = '';

$sql_join = '';

$sql_limit = '';

$rows = get_request_var('rows');

if ($rows == '-1') {

$rows = read_user_setting('monitor_rows');

}

if (!is_numeric($rows)) {

$rows = read_config_option('num_rows_table');

}

renderWhereJoin($sql_where, $sql_join);

$sql_limit = ' LIMIT ' . ($rows * (get_request_var('page') - 1)) . ',' . $rows;

if (get_request_var('template') > 0) {

$sql_where .= ($sql_where == '' ? '' : 'AND ') . 'ht.id = ' . get_request_var('template');

}

$sql_template = 'INNER JOIN host_template AS ht ON h.host_template_id=ht.id ';

if (get_request_var('template') == -2) {

$sql_where .= ($sql_where == '' ? '' : 'AND ') . 'ht.id IS NULL';

$sql_template = 'LEFT JOIN host_template AS ht ON h.host_template_id=ht.id ';

}

$hosts = db_fetch_assoc("SELECT DISTINCT

h.*, ht.name AS host_template_name

FROM host AS h

$sql_template

$sql_join

$sql_where

ORDER BY ht.name, h.description

$sql_limit");

$ctemp = -1;

$ptemp = -1;

if (cacti_sizeof($hosts)) {

$suppressGroups = false;

$function = 'renderSuppressgroups' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

$suppressGroups = $function();

}

$function = 'renderHeader' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

// Call the custom render_header_ function

$result .= $function();

$suppressGroups = true;

}

foreach ($hosts as $index => $host) {

if (is_device_allowed($host['id'])) {

$host_ids[] = $host['id'];

} else {

unset($hosts[$index]);

}

}

// Determine the correct width of the cell

$maxlen = 10;

if (get_request_var('view') == 'default') {

$maxlen = db_fetch_cell('SELECT MAX(LENGTH(description))

FROM host AS h

WHERE id IN (' . implode(',', $host_ids) . ')');

}

$maxlen = getMonitorTrimLength($maxlen);

$class = get_request_var('size');

$csuffix = get_request_var('view');

if ($csuffix == 'default') {

$csuffix = '';

}

foreach ($hosts as $host) {

$ctemp = $host['host_template_id'];

if (!$suppressGroups) {

if ($ctemp != $ptemp && $ptemp > 0) {

$result .= '</div>';

}

if ($ctemp != $ptemp) {

$result .= "<div class='monitorTableHeader'>

<div class='navBarNavigation'>

<div class='navBarNavigationNone'>" . html_escape($host['host_template_name']) . "</div>

</div>

</div>

<div class='monitor_container'>";

}

}

$result .= renderHost($host, true, $maxlen);

if ($ctemp != $ptemp) {

$ptemp = $ctemp;

}

}

if ($ptemp == $ctemp && !$suppressGroups) {

$result .= '</div>';

}

$function = 'renderFooter' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

// Call the custom render_footer_ function

$result .= $function();

}

}

return $result;

}

/**

* Filter out disallowed hosts and return normalized host/id lists.

*

* @param array $hosts Host rows.

*

* @return array{array, array}

*/

function monitorFilterAllowedHosts(array $hosts): array {

$host_ids = [];

foreach ($hosts as $index => $host) {

if (is_device_allowed($host['id'])) {

$host_ids[] = $host['id'];

} else {

unset($hosts[$index]);

}

}

return [array_values($hosts), $host_ids];

}

/**

* Determine max description trim length for tree rendering context.

*

* @return int

*/

function monitorGetTreeRenderMaxLength(): int {

$maxlen = 10;

if (get_request_var('view') == 'default') {

$maxlen = db_fetch_cell("SELECT MAX(LENGTH(description))

FROM host AS h

INNER JOIN graph_tree_items AS gti

ON gti.host_id = h.id

WHERE disabled = ''

AND deleted = ''");

}

return getMonitorTrimLength($maxlen);

}

/**

* Build map of tree branch labels keyed by "tree_id:parent_id".

*

* @param array $branchWhost Tree branch/host rows.

*

* @return array

*/

function monitorBuildTreeTitles(array $branchWhost): array {

$titles = [];

$ptree = '';

foreach ($branchWhost as $b) {

if ($ptree != $b['graph_tree_id']) {

$titles[$b['graph_tree_id'] . ':0'] = __('Root Branch', 'monitor');

$ptree = $b['graph_tree_id'];

}

if ($b['parent'] > 0) {

$titles[$b['graph_tree_id'] . ':' . $b['parent']] = db_fetch_cell_prepared(

'SELECT title

FROM graph_tree_items

WHERE id = ?

AND graph_tree_id = ?

ORDER BY position',

[$b['parent'], $b['graph_tree_id']]

);

}

}

return $titles;

}

/**

* Render grouped tree title/branch sections for monitor view.

*

* @param array $titles Tree titles map keyed by "tree_id:parent_id".

* @param int $maxlen Trim length used for host title rendering.

*

* @return string

*/

function monitorRenderTreeTitleSections(array $titles, int $maxlen): string {

$result = '';

$ptree = '';

foreach ($titles as $index => $title) {

[$graph_tree_id, $parent] = explode(':', $index);

$oid = $parent;

$sql_where = '';

$sql_join = '';

renderWhereJoin($sql_where, $sql_join);

$hosts_sql = "SELECT h.*, IFNULL(s.name,' " . __('Non-Site Device', 'monitor') . " ') AS site_name

FROM host AS h

LEFT JOIN sites AS s

ON h.site_id = s.id

INNER JOIN graph_tree_items AS gti

ON h.id = gti.host_id

$sql_join

$sql_where

AND parent = ?

AND graph_tree_id = ?

GROUP BY h.id

ORDER BY gti.position";

$hosts = db_fetch_assoc_prepared($hosts_sql, [$oid, $graph_tree_id]);

$tree_name = db_fetch_cell_prepared(

'SELECT name

FROM graph_tree

WHERE id = ?',

[$graph_tree_id]

);

if ($ptree != $tree_name) {

if ($ptree != '') {

$result .= '</div>';

}

$result .= "<div class='monitorTableHeader'>

<div class='navBarNavigation'>

<div class='navBarNavigationNone'>" . __esc('Tree: %s', $tree_name, 'monitor') . "</div>

</div>

</div>

<div class='monitorTable'>

<div class='monitor_sub_container'>";

$ptree = $tree_name;

}

if (!cacti_sizeof($hosts)) {

continue;

}

[$hosts] = monitorFilterAllowedHosts($hosts);

if (!cacti_sizeof($hosts)) {

continue;

}

$result .= "<div class='monitorSubTable'><div class='navBarNavigation'><div class='navBarNavigationNone'>" . __esc('Branch: %s', $title, 'monitor') . "</div></div><div class='monitor_sub_container'>";

foreach ($hosts as $host) {

$result .= renderHost($host, true, $maxlen);

}

$result .= '</div></div>';

}

return $result;

}

/**

* Render section for monitored hosts that are not attached to any tree.

*

* @return string

*/

function monitorRenderNonTreeSection(): string {

$result = '';

if (get_request_var('tree') >= 0) {

return $result;

}

$hosts = getHostNonTreeArray();

if (!cacti_sizeof($hosts)) {

return $result;

}

[$hosts, $host_ids] = monitorFilterAllowedHosts($hosts);

if (!cacti_sizeof($hosts)) {

return $result;

}

$maxlen = 10;

if (get_request_var('view') == 'default' && cacti_sizeof($host_ids)) {

$maxlen = db_fetch_cell('SELECT MAX(LENGTH(description))

FROM host AS h

WHERE id IN (' . implode(',', $host_ids) . ")

AND h.deleted = ''");

}

$maxlen = getMonitorTrimLength($maxlen);

$result .= "<div class='monitorTableHeader'>

<div class='navBarNavigation'>

<div class='navBarNavigationNone'>" . __('Non-Tree Devices', 'monitor') . "</div>

</div>

</div>

<div class='monitor_container'>";

foreach ($hosts as $leaf) {

$result .= renderHost($leaf, true, $maxlen);

}

$result .= '</div></div>';

return $result;

}

/**

* Render monitor tree grouping view, including tree and non-tree sections.

*

* @return string

*/

function renderTree(): string {

$result = '';

if (get_request_var('tree') > 0) {

$sql_where = 'gt.id=' . get_request_var('tree');

} else {

$sql_where = '';

}

if (get_request_var('tree') != -2) {

$tree_list = get_allowed_trees(false, false, $sql_where, 'sequence');

} else {

$tree_list = [];

}

$function = 'renderHeader' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

$hosts = [];

// Call the custom render_header_ function

$result .= $function();

}

if (cacti_sizeof($tree_list)) {

$tree_ids = [];

foreach ($tree_list as $tree) {

$tree_ids[$tree['id']] = $tree['id'];

}

$sql_where = '';

$sql_join = '';

renderWhereJoin($sql_where, $sql_join);

$branchWhost = db_fetch_assoc("SELECT DISTINCT gti.graph_tree_id, gti.parent

FROM graph_tree_items AS gti

INNER JOIN graph_tree AS gt

ON gt.id = gti.graph_tree_id

INNER JOIN host AS h

ON h.id = gti.host_id

$sql_join

$sql_where

AND gti.host_id > 0

AND gti.graph_tree_id IN (" . implode(',', $tree_ids) . ')

ORDER BY gt.sequence, gti.position');

if (cacti_sizeof($branchWhost)) {

$titles = monitorBuildTreeTitles($branchWhost);

$result .= monitorRenderTreeTitleSections($titles, monitorGetTreeRenderMaxLength());

}

$result .= '</div>';

}

$result .= monitorRenderNonTreeSection();

$function = 'renderFooter' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

// Call the custom render_footer_ function

$result .= $function();

}

return $result;

}

/**

* Resolve display status for a host with monitor/thold/mute overlays applied.

*

* @param array $host Host row data.

* @param bool $real Return raw computed status even if icon class is missing.

*

* @return int

*/

function getHostStatus(array $host, bool $real = false): int {

global $thold_hosts, $iclasses;

// If the host has been muted, show the muted Icon

if ($host['status'] != 1 && in_array($host['id'], $thold_hosts, true)) {

$host['status'] = 4;

}

if (in_array($host['id'], $_SESSION['monitor_muted_hosts'], true) && $host['status'] == 1) {

$host['status'] = 5;

} elseif (in_array($host['id'], $_SESSION['monitor_muted_hosts'], true) && $host['status'] == 4) {

$host['status'] = 9;

} elseif ($host['status'] == 3) {

if ($host['cur_time'] > $host['monitor_alert'] && !empty($host['monitor_alert'])) {

$host['status'] = 8;

} elseif ($host['cur_time'] > $host['monitor_warn'] && !empty($host['monitor_warn'])) {

$host['status'] = 7;

}

}

// If wanting the real status, or the status is already known

// return the real status, otherwise default to unknown

return ($real || array_key_exists($host['status'], $iclasses)) ? $host['status'] : 0;

}

/**

* Translate status code into localized display label.

*

* @param int|string $status Monitor status code.

*

* @return string

*/

function getHostStatusDescription(mixed $status): string {

global $icolorsdisplay;

if (array_key_exists($status, $icolorsdisplay)) {

return $icolorsdisplay[$status];

} else {

return __('Unknown', 'monitor') . " ($status)";

}

}

/**

* Render one host using view-specific renderer or default tile layout.

*

* @param array $host Host row data.

* @param bool $float Legacy compatibility flag (currently unused).

* @param int $maxlen Maximum host description trim length.

*

* @return string|null

*/

function renderHost(array $host, bool $float = true, int $maxlen = 10): ?string {

global $thold_hosts, $config, $icolorsdisplay, $iclasses, $classes, $maxchars, $mon_zoom_state;

// throw out tree root items

if (array_key_exists('name', $host)) {

return null;

}

if ($host['id'] <= 0) {

return null;

}

$host['anchor'] = $config['url_path'] . 'graph_view.php?action=preview&reset=1&host_id=' . $host['id'];

if ($host['status'] == 3 && array_key_exists($host['id'], $thold_hosts)) {

$host['status'] = 4;

$host['anchor'] = $config['url_path'] . 'plugins/thold/thold_graph.php?action=thold&reset=true&status=1&host_id=' . $host['id'];

}

$host['real_status'] = getHostStatus($host, true);

$host['status'] = getHostStatus($host);

$host['iclass'] = $iclasses[$host['status']];

$function = 'renderHost' . ucfirst(get_request_var('view'));

if (function_exists($function)) {

// Call the custom render_host_ function

$result = $function($host);

} else {

$iclass = getStatusIcon($host['status'], $host['monitor_icon']);

$fclass = get_request_var('size');

$monitor_times = read_user_setting('monitor_uptime');

$monitor_time_html = '';

if ($host['status'] <= 2 || $host['status'] == 5) {

if ($mon_zoom_state) {

$fclass = 'monitor_errorzoom';

}

$tis = get_timeinstate($host);

if ($monitor_times == 'on') {

$monitor_time_html = "<br><span class='monitor_device{$fclass} deviceDown'>$tis</span>";

}

$result = "<div class='$fclass flash monitor_device_frame'><a class='pic hyperLink' href='" . html_escape($host['anchor']) . "'><i id='" . $host['id'] . "' class='$iclass " . $host['iclass'] . "'></i><br><span class='{$fclass}_title'>" . title_trim(html_escape($host['description']), $maxlen) . "</span>$monitor_time_html</a></div>";

} else {

$tis = get_uptime($host);

if ($monitor_times == 'on') {

$monitor_time_html = "<br><div class='monitor_device{$fclass} deviceUp'>$tis</div>";

}

$result = "<div class='$fclass monitor_device_frame'><a class='pic hyperLink' href='" . html_escape($host['anchor']) . "'><i id=" . $host['id'] . " class='$iclass " . $host['iclass'] . "'></i><br><span class='{$fclass}_title'>" . title_trim(html_escape($host['description']), $maxlen) . "</span>$monitor_time_html</a></div>";

}

}

return $result;

}

/**

* Resolve icon class for host status and configured monitor icon.

*

* @param int $status Current monitor status.

* @param string $icon Configured icon key.

*

* @return string

*/

function getStatusIcon(int $status, string $icon): string {

global $fa_icons;

if (($status == 1 || ($status == 4 && get_request_var('status') > 0)) && read_user_setting('monitor_sound') == 'First Orders Suite.mp3') {

return 'fab fa-first-order fa-spin mon_icon';

}

if ($icon != '' && array_key_exists($icon, $fa_icons)) {

if (isset($fa_icons[$icon]['class'])) {

return $fa_icons[$icon]['class'] . ' mon_icon';

} else {

return "fa fa-$icon mon_icon";

}

} else {

return 'fa fa-server' . ' mon_icon';

}

}

/**

* Convert uptime/fail timestamp into compact human-readable duration text.

*

* @param int|string $status_time Timestamp string or SNMP uptime ticks.

* @param bool $seconds Include seconds in output string.

*

* @return string

*/

function monitorPrintHostTime(mixed $status_time, bool $seconds = false): string {

// If the host is down, make a downtime since message

$dt = '';

if (is_numeric($status_time)) {

$sfd = round($status_time / 100, 0);

} else {

$sfd = time() - strtotime($status_time);

}

$dt_d = floor($sfd / 86400);

$dt_h = floor(($sfd - ($dt_d * 86400)) / 3600);

$dt_m = floor(($sfd - ($dt_d * 86400) - ($dt_h * 3600)) / 60);

$dt_s = $sfd - ($dt_d * 86400) - ($dt_h * 3600) - ($dt_m * 60);

if ($dt_d > 0) {

$dt .= $dt_d . 'd:' . $dt_h . 'h:' . $dt_m . 'm' . ($seconds ? ':' . $dt_s . 's' : '');

} elseif ($dt_h > 0) {

$dt .= $dt_h . 'h:' . $dt_m . 'm' . ($seconds ? ':' . $dt_s . 's' : '');

} elseif ($dt_m > 0) {

$dt .= $dt_m . 'm' . ($seconds ? ':' . $dt_s . 's' : '');

} else {

$dt .= ($seconds ? $dt_s . 's' : __('Just Up', 'monitor'));

}

return $dt;

}

/**

* Trim monitor text fields for quote and whitespace artifacts.

*

* @param string $string Input string.

*

* @return string

*/

function monitorTrim(string $string): string {

return trim($string, "\"'\\ \n\t\r");

}

/**

* Render wrapper header for default/tile monitor views.

*

* @return string

*/

function renderHeaderDefault(): string {

return "<div class='monitorTable monitor'><div class='monitor_container'>";

}

/**

* Render wrapper header for names view table.

*

* @return string

*/

function renderHeaderNames(): string {

return "<table class='monitorTable monitor'>";

}

/**

* Render wrapper header for icon tile view.

*

* @return string

*/

function renderHeaderTiles(): string {

return renderHeaderDefault();

}

/**

* Render wrapper header for advanced tile view.

*

* @return string

*/

function renderHeaderTilesadt(): string {

return renderHeaderDefault();

}

/**

* Render header and sortable column bar for list view.

*

* @param int $total_rows Total rows matching active filters.

* @param int $rows Page row limit.

*

* @return string

*/

function renderHeaderList(int $total_rows = 0, int $rows = 0): string {

$display_text = [

'hostname' => [

'display' => __('Hostname', 'monitor'),

'sort' => 'ASC',

'align' => 'left', 'tip' => __('Hostname of device', 'monitor')

],

'id' => [

'display' => __('ID', 'monitor'),

'sort' => 'ASC',

'align' => 'left'

],

'description' => [

'display' => __('Description', 'monitor'),

'sort' => 'ASC',

'align' => 'left'

],

'site_name' => [

'display' => __('Site', 'monitor'),

'sort' => 'ASC',

'align' => 'left'

],

'monitor_criticality' => [

'display' => __('Criticality', 'monitor'),

'sort' => 'ASC',

'align' => 'left'

],

'status' => [

'display' => __('Status', 'monitor'),

'sort' => 'DESC',

'align' => 'center'

],

'instate' => [

'display' => __('Length in Status', 'monitor'),

'sort' => 'ASC',

'align' => 'center'

],

'avg_time' => [

'display' => __('Averages', 'monitor'),

'sort' => 'DESC',

'align' => 'left'

],

'monitor_warn' => [

'display' => __('Warning', 'monitor'),

'sort' => 'DESC',

'align' => 'left'

],

'monitor_text' => [

'display' => __('Admin', 'monitor'),

'sort' => 'ASC',

'tip' => __('Monitor Text Column represents \'Admin\'', 'monitor'),

'align' => 'left'

],

'notes' => [

'display' => __('Notes', 'monitor'),

'sort' => 'ASC',

'align' => 'left'

],

'availability' => [

'display' => __('Availability', 'monitor'),

'sort' => 'DESC',

'align' => 'right'

],

'status_fail_date' => [

'display' => __('Last Fail', 'monitor'),

'sort' => 'DESC',

'align' => 'right'

],

];

ob_start();

$nav = html_nav_bar('monitor.php?rfilter=' . get_request_var('rfilter'), MAX_DISPLAY_PAGES, get_request_var('page'), $rows, $total_rows, 12, __('Devices'), 'page', 'main');

html_start_box(__('Monitored Devices', 'monitor'), '100%', false, 3, 'center', '');

print $nav;

html_header_sort($display_text, get_request_var('sort_column'), get_request_var('sort_direction'), false);

$output = ob_get_contents();

ob_end_clean();

return $output;

}

/**

* Indicate whether grouped section headers are suppressed for list view.

*

* @return bool

*/

function renderSuppressgroupsList(): bool {

return true;

}

/**

* Render wrapper footer for default/tile monitor views.

*

* @return string

*/

function renderFooterDefault(): string {

return '</div></div>';

}

/**

* Render footer row for names view including trailing empty cells.

*