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<?php declare(strict_types = 0);
/*
** Zabbix
** Copyright (C) 2001-2023 Zabbix SIA
**
** 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.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
namespace Widgets\Clock\Actions;
use API,
CControllerDashboardWidgetView,
CControllerResponseData,
CTimezoneHelper,
DateTime,
DateTimeZone,
Exception,
Manager;
use Widgets\Clock\Widget;
class WidgetView extends CControllerDashboardWidgetView {
protected function init(): void {
parent::init();
$this->addValidationRules([
'dynamic_hostid' => 'db hosts.hostid'
]);
}
protected function doAction(): void {
$config_defaults = [
'name' => $this->widget->getDefaultName(),
'type' => $this->fields_values['clock_type'],
'time' => null,
'time_zone_offset' => null,
'date' => date(ZBX_DATE),
'time_zone' => TIMEZONE_DEFAULT_LOCAL,
'is_enabled' => true,
'critical_error' => null
];
switch ($this->fields_values['time_type']) {
case TIME_TYPE_HOST:
$clock_data = $this->configureHostTime() + $config_defaults;
break;
case TIME_TYPE_SERVER:
$clock_data = $this->configureFields() + $config_defaults;
$clock_data['name'] = _('Server');
break;
default:
$clock_data = $this->configureFields() + $config_defaults;
$clock_data['name'] = _('Local');
break;
}
// Pass clock configuration to browser script.
if ($this->fields_values['clock_type'] === Widget::TYPE_DIGITAL) {
$clock_data['show'] = $this->fields_values['show'];
$clock_data['bg_color'] = $this->fields_values['bg_color'];
$clock_data['time_format'] = $this->fields_values['time_format'];
$clock_data['seconds'] = ($this->fields_values['time_sec'] == 1);
$clock_data['tzone_format'] = $this->fields_values['tzone_format'];
}
$this->setResponse(new CControllerResponseData([
'name' => $this->getInput('name', $clock_data['name']),
'clock_data' => $clock_data,
'styles' => $this->getFieldStyles(),
'user' => [
'debug_mode' => $this->getDebugMode()
]
]));
}
/**
* Makes time zone field value.
*
* @param string $time_zone Saved time zone name.
* @param int $format Use time zone name (from database) if short or time zone title (from list) if long.
*
* @return string Return time zone name from list or 'local' if time zone must be set via browser.
*/
private function makeTimeZoneValue(string $time_zone, int $format = Widget::TIMEZONE_SHORT): string {
if ($time_zone === TIMEZONE_DEFAULT_LOCAL) {
return $time_zone;
}
$zone = $time_zone === ZBX_DEFAULT_TIMEZONE ? CTimezoneHelper::getSystemTimezone() : $time_zone;
if ($format === Widget::TIMEZONE_SHORT) {
if (($pos = strrpos($zone, '/')) !== false) {
$zone = substr($zone, $pos + 1);
}
}
else {
$zone = CTimezoneHelper::getTitle($zone);
}
return str_replace('_', ' ', $zone);
}
private function showDate(): bool {
return $this->fields_values['clock_type'] === Widget::TYPE_DIGITAL
&& in_array(Widget::SHOW_DATE, $this->fields_values['show']);
}
private function showTime(): bool {
return $this->fields_values['clock_type'] === Widget::TYPE_ANALOG
|| in_array(Widget::SHOW_TIME, $this->fields_values['show']);
}
private function showTimeZone(): bool {
return $this->fields_values['clock_type'] === Widget::TYPE_DIGITAL
&& in_array(Widget::SHOW_TIMEZONE, $this->fields_values['show']);
}
/**
* @param DateTime $date
*
* @return array
*/
private function makeTimeFromDateTime(DateTime $date): array {
$time = [];
$time['time'] = $date->getTimestamp();
$time['time_zone_offset'] = (int) $date->format('Z');
return $time;
}
/**
* Makes DateTime object from passed time_zone string.
*
* @param string $time_zone Time zone string.
*
* @return DateTime|null Returns created DateTime object or null if time zone is set by browser.
*/
private function makeDateTimeFromTimeZone(string $time_zone): ?DateTime {
if ($time_zone === TIMEZONE_DEFAULT_LOCAL) {
return null;
}
$now = new DateTime();
if ($time_zone !== ZBX_DEFAULT_TIMEZONE) {
$now->setTimezone(new DateTimeZone($time_zone));
}
return $now;
}
private function configureHostTime(): array {
$items = [];
$clock = ['is_enabled' => true];
if ($this->isTemplateDashboard()) {
if ($this->hasInput('dynamic_hostid')) {
$template_items = API::Item()->get([
'output' => ['key_'],
'itemids' => $this->fields_values['itemid'],
'webitems' => true
]);
if ($template_items) {
$items = API::Item()->get([
'output' => ['itemid', 'value_type'],
'selectHosts' => ['name'],
'hostids' => [$this->getInput('dynamic_hostid')],
'filter' => [
'key_' => $template_items[0]['key_']
],
'webitems' => true
]);
}
}
// Editing template dashboard?
else {
$clock['is_enabled'] = false;
}
}
else {
$items = API::Item()->get([
'output' => ['itemid', 'value_type'],
'selectHosts' => ['name'],
'itemids' => $this->fields_values['itemid'],
'webitems' => true
]);
}
if (!$clock['is_enabled']) {
return $clock;
}
if ($items) {
$item = $items[0];
$clock['name'] = $item['hosts'][0]['name'];
$last_value = $item['value_type'] == ITEM_VALUE_TYPE_BINARY
? []
: Manager::History()->getLastValues([$item]);
if ($last_value) {
$last_value = $last_value[$item['itemid']][0];
try {
$now = new DateTime($last_value['value']);
if ($this->showDate()) {
$clock['date'] = $now->format(ZBX_DATE);
}
$clock['time_zone_offset'] = (int) $now->format('Z');
$clock['time'] = time() - ($last_value['clock'] - $now->getTimestamp());
if ($this->showTimeZone()) {
$clock['time_zone'] = 'UTC'.$now->format('P');
}
}
catch (Exception $e) {
$clock['is_enabled'] = false;
}
}
else {
$clock['is_enabled'] = false;
}
}
else {
$clock['critical_error'] = _('No permissions to referred object or it does not exist!');
}
return $clock;
}
/**
* Create required clock field values both for analog and digital clock.
*/
private function configureFields(): array {
$clock = [];
$date = $this->makeDateTimeFromTimeZone($this->fields_values['tzone_timezone']);
if ($date !== null) {
if ($this->showDate()) {
$clock['date'] = $date->format(ZBX_DATE);
}
if ($this->showTime()) {
$clock = array_merge($clock, $this->makeTimeFromDateTime($date));
}
}
if ($this->showTimeZone()) {
$clock['time_zone'] = $this->makeTimeZoneValue($this->fields_values['tzone_timezone'],
$this->fields_values['tzone_format']
);
}
return $clock;
}
/**
* Groups enabled field styles by field name (Date, Time, Time zone).
*/
private function getFieldStyles(): array {
$cells = [];
if ($this->fields_values['clock_type'] === Widget::TYPE_DIGITAL) {
$show = $this->fields_values['show'];
if (in_array(Widget::SHOW_DATE, $show)) {
$cells['date'] = [
'size' => $this->fields_values['date_size'],
'bold' => ($this->fields_values['date_bold'] == 1),
'color' => $this->fields_values['date_color']
];
}
if (in_array(Widget::SHOW_TIME, $show)) {
$cells['time'] = [
'size' => $this->fields_values['time_size'],
'bold' => ($this->fields_values['time_bold'] == 1),
'color' => $this->fields_values['time_color']
];
}
if (in_array(Widget::SHOW_TIMEZONE, $show)) {
$cells['timezone'] = [
'size' => $this->fields_values['tzone_size'],
'bold' => ($this->fields_values['tzone_bold'] == 1),
'color' => $this->fields_values['tzone_color']
];
}
}
return $cells;
}
}