Zabbix

<?php declare(strict_types = 0);

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

​

namespace Widgets\ItemHistory\Actions;

​

use API,

    CController,

    CControllerResponseData;

​

class ImageValueGet extends CController {

​

    protected function init(): void {

        $this->disableCsrfValidation();

    }

​

    protected function checkPermissions(): bool {

        return $this->getUserType() >= USER_TYPE_ZABBIX_USER;

    }

​

    protected function checkInput(): bool {

        $fields = [

            'itemid' => 'int32|required',

            'clock' =>  'int32|required',

            'ns' =>     'int32|required'

        ];

​

        return $this->validateInput($fields);

    }

​

    protected function doAction(): void {

        $result = [];

​

        $db_item = API::Item()->get([

            'output' => ['itemid', 'value_type'],

            'itemids' => $this->getInput('itemid'),

            'webitems' => true

        ]);

​

        if ($db_item && $db_item[0]['value_type'] == ITEM_VALUE_TYPE_BINARY) {

            $history_value = API::History()->get([

                'output' => ['value'],

                'history' => ITEM_VALUE_TYPE_BINARY,

                'itemids' => $db_item[0]['itemid'],

                'filter' => [

                    'clock' => $this->getInput('clock'),

                    'ns' => $this->getInput('ns')

                ]

            ]);

​

            if ($history_value) {