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<?php
/*
** Zabbix
** Copyright (C) 2001-2022 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.
**/
/**
* Class containing methods for operations with widgets.
*/
abstract class CControllerWidget extends CController {
/**
* @var int $type Widget type WIDGET_*.
*/
private $type;
/**
* @var array $validation_rules Validation rules for input parameters.
*/
private $validation_rules = [];
/**
* @var object $form CWidgetForm object.
*/
private $form;
/**
* Initialization function.
*/
protected function init() {
$this->setPostContentType(self::POST_CONTENT_TYPE_JSON);
}
/**
* Check user permissions.
*
* @return bool
*/
protected function checkPermissions() {
return ($this->getUserType() >= USER_TYPE_ZABBIX_USER);
}
/**
* Set widget type.
*
* @param int $type Widget type WIDGET_*.
*
* @return object
*/
protected function setType($type) {
$this->type = $type;
return $this;
}
protected function getContext(): string {
return $this->hasInput('templateid')
? CWidgetConfig::CONTEXT_TEMPLATE_DASHBOARD
: CWidgetConfig::CONTEXT_DASHBOARD;
}
/**
* Set validation rules for input parameters.
*
* @param array $validation_rules Validation rules for input parameters.
*
* @return object
*/
protected function setValidationRules(array $validation_rules) {
$this->validation_rules = $validation_rules;
return $this;
}
/**
* Returns default widget name.
*
* @return string
*/
protected function getDefaultName() {
return CWidgetConfig::getKnownWidgetTypes($this->getContext())[$this->type];
}
/**
* Validate input parameters.
*
* @return bool
*/
protected function checkInput() {
$validation_rules = $this->validation_rules;
if (CWidgetConfig::isWidgetTypeSupportedInContext($this->type, CWidgetConfig::CONTEXT_TEMPLATE_DASHBOARD)) {
$validation_rules['templateid'] = 'db dashboard.templateid';
}
$ret = $this->validateInput($validation_rules);
if ($ret) {
$this->form = CWidgetConfig::getForm($this->type, $this->getInput('fields', '{}'),
$this->hasInput('templateid') ? $this->getInput('templateid') : null
);
if ($errors = $this->form->validate()) {
foreach ($errors as $error) {
error($error);
}
$ret = false;
}
}
if (!$ret) {
$this->setResponse(
(new CControllerResponseData(['main_block' => json_encode([
'error' => [
'messages' => array_column(get_and_clear_messages(), 'message')
]
])]))->disableView()
);
}
return $ret;
}
/**
* Returns form object.
*
* @return object
*/
protected function getForm() {
return $this->form;
}
}
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