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<?php
declare(strict_types=1);
namespace PhpMyAdmin\Controllers\Server\Variables;
use PhpMyAdmin\Controllers\AbstractController;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Http\ServerRequest;
use PhpMyAdmin\Providers\ServerVariables\ServerVariablesProvider;
use PhpMyAdmin\ResponseRenderer;
use PhpMyAdmin\Template;
use PhpMyAdmin\Util;
use function header;
use function implode;
final class GetVariableController extends AbstractController
{
/** @var DatabaseInterface */
private $dbi;
public function __construct(ResponseRenderer $response, Template $template, DatabaseInterface $dbi)
{
parent::__construct($response, $template);
$this->dbi = $dbi;
}
/**
* @param array $params Request parameters
*/
public function __invoke(ServerRequest $request, array $params): void
{
if (! $this->response->isAjax()) {
return;
}
// Send with correct charset
header('Content-Type: text/html; charset=UTF-8');
// Do not use double quotes inside the query to avoid a problem
// when server is running in ANSI_QUOTES sql_mode
$varValue = $this->dbi->fetchSingleRow(
'SHOW GLOBAL VARIABLES WHERE Variable_name=\''
. $this->dbi->escapeString($params['name']) . '\';',
DatabaseInterface::FETCH_NUM
);
$json = [
'message' => $varValue[1],
];
$variableType = ServerVariablesProvider::getImplementation()->getVariableType($params['name']);
if ($variableType === 'byte') {
/** @var string[] $bytes */
$bytes = Util::formatByteDown($varValue[1], 3, 3);
$json['message'] = implode(' ', $bytes);
}
$this->response->addJSON($json);
}
}
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