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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 Zabbix\Widgets;
use CApiInputValidator,
DB;
abstract class CWidgetField {
public const FLAG_ACKNOWLEDGES = 0x01;
public const FLAG_NOT_EMPTY = 0x02;
public const FLAG_LABEL_ASTERISK = 0x04;
public const FLAG_DISABLED = 0x08;
protected string $name;
protected ?string $label;
protected ?string $full_name = null;
protected ?int $save_type = null;
protected $value;
protected $default;
protected int $max_length;
protected ?string $action = null;
protected int $flags = 0x00;
protected array $validation_rules = [];
protected ?array $strict_validation_rules = null;
protected array $ex_validation_rules = [];
private $templateid = null;
/**
* @param string $name Field name in form.
* @param string|null $label Label for the field in form.
*/
public function __construct(string $name, string $label = null) {
$this->name = $name;
$this->label = $label;
$this->value = null;
$this->setSaveType(ZBX_WIDGET_FIELD_TYPE_STR);
}
public function getName(): string {
return $this->name;
}
public function getLabel(): ?string {
return $this->label;
}
/**
* Set field full name which will appear in case of error messages. For example:
* Invalid parameter "<FULL NAME>": too many decimal places.
*/
public function setFullName(string $name): self {
$this->full_name = $name;
return $this;
}
/**
* Get field value. If no value is set, will return default value.
*/
public function getValue() {
return $this->value ?? $this->default;
}
public function setValue($value): self {
$this->value = $value;
return $this;
}
public function setDefault($value): self {
$this->default = $value;
return $this;
}
public function getAction(): ?string {
return $this->action;
}
/**
* Set JS code that will be called on field change.
*
* @param string $action JS function to call on field change.
*/
public function setAction(string $action): self {
$this->action = $action;
return $this;
}
public function getMaxLength(): int {
return $this->max_length;
}
public function setMaxLength(int $max_length): self {
$this->max_length = $max_length;
$this->validation_rules['length'] = $this->max_length;
return $this;
}
/**
* Get additional flags, which can be used in configuration form.
*/
public function getFlags(): int {
return $this->flags;
}
/**
* Set additional flags, which can be used in configuration form.
*/
public function setFlags(int $flags): self {
$this->flags = $flags;
return $this;
}
/**
* @return int|string|null
*/
public function getTemplateId() {
return $this->templateid;
}
public function setTemplateId($templateid): self {
$this->templateid = $templateid;
return $this;
}
public function isTemplateDashboard(): bool {
return $this->templateid !== null;
}
/**
* @param bool $strict Widget form submit validation?
*
* @return array Errors.
*/
public function validate(bool $strict = false): array {
$errors = [];
$validation_rules = ($strict && $this->strict_validation_rules !== null)
? $this->strict_validation_rules
: $this->validation_rules;
$validation_rules += $this->ex_validation_rules;
$value = $this->value ?? $this->default;
if ($this->full_name !== null) {
$label = $this->full_name;
}
else {
$label = $this->label ?? $this->name;
}
if (CApiInputValidator::validate($validation_rules, $value, $label, $error)) {
$this->setValue($value);
}
else {
$this->setValue($this->default);
$errors[] = $error;
}
return $errors;
}
/**
* Prepares array entry for widget field, ready to be passed to CDashboard API functions.
* Reference is needed here to avoid array merging in CWidgetForm::fieldsToApi method. With large number of widget
* fields it causes significant performance decrease.
*
* @param array $widget_fields reference to Array of widget fields.
*/
public function toApi(array &$widget_fields = []): void {
$value = $this->getValue();
if ($value !== null && $value !== $this->default) {
$widget_field = [
'type' => $this->save_type,
'name' => $this->name
];
if (is_array($value)) {
foreach ($value as $val) {
$widget_field['value'] = $val;
$widget_fields[] = $widget_field;
}
}
else {
$widget_field['value'] = $value;
$widget_fields[] = $widget_field;
}
}
}
protected function setSaveType($save_type): self {
switch ($save_type) {
case ZBX_WIDGET_FIELD_TYPE_INT32:
$this->validation_rules = ['type' => API_INT32];
break;
case ZBX_WIDGET_FIELD_TYPE_STR:
$this->max_length = DB::getFieldLength('widget_field', 'value_str');
$this->validation_rules = [
'type' => API_STRING_UTF8,
'length' => $this->max_length
];
break;
case ZBX_WIDGET_FIELD_TYPE_GROUP:
case ZBX_WIDGET_FIELD_TYPE_HOST:
case ZBX_WIDGET_FIELD_TYPE_ITEM:
case ZBX_WIDGET_FIELD_TYPE_ITEM_PROTOTYPE:
case ZBX_WIDGET_FIELD_TYPE_GRAPH:
case ZBX_WIDGET_FIELD_TYPE_GRAPH_PROTOTYPE:
case ZBX_WIDGET_FIELD_TYPE_MAP:
case ZBX_WIDGET_FIELD_TYPE_SERVICE:
case ZBX_WIDGET_FIELD_TYPE_SLA:
case ZBX_WIDGET_FIELD_TYPE_USER:
case ZBX_WIDGET_FIELD_TYPE_ACTION:
case ZBX_WIDGET_FIELD_TYPE_MEDIA_TYPE:
$this->validation_rules = ['type' => API_IDS];
break;
default:
exit(_('Internal error.'));
}
$this->save_type = $save_type;
return $this;
}
protected function getValidationRules(): array {
return $this->validation_rules;
}
protected function setValidationRules(array $validation_rules): self {
$this->validation_rules = $validation_rules;
return $this;
}
/**
* Set validation rules for "strict" mode.
*/
protected function setStrictValidationRules(array $strict_validation_rules = null): self {
$this->strict_validation_rules = $strict_validation_rules;
return $this;
}
protected function setExValidationRules(array $ex_validation_rules): self {
$this->ex_validation_rules = $ex_validation_rules;
return $this;
}
/**
* Set additional flags for validation rule array.
*/
protected static function setValidationRuleFlag(array &$validation_rule, int $flag): void {
if (array_key_exists('flags', $validation_rule)) {
$validation_rule['flags'] |= $flag;
}
else {
$validation_rule['flags'] = $flag;
}
}
}