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<?php
declare(strict_types=1);
namespace PhpMyAdmin\Controllers\Server;
use PhpMyAdmin\Controllers\AbstractController;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Html\Generator;
use PhpMyAdmin\Providers\ServerVariables\ServerVariablesProvider;
use PhpMyAdmin\ResponseRenderer;
use PhpMyAdmin\Template;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;
use function implode;
use function in_array;
use function is_numeric;
use function str_replace;
use function strtolower;
use function trim;
/**
* Handles viewing and editing server variables
*/
class VariablesController extends AbstractController
{
/** @var DatabaseInterface */
private $dbi;
public function __construct(ResponseRenderer $response, Template $template, DatabaseInterface $dbi)
{
parent::__construct($response, $template);
$this->dbi = $dbi;
}
public function __invoke(): void
{
global $errorUrl;
$params = ['filter' => $_GET['filter'] ?? null];
$errorUrl = Url::getFromRoute('/');
if ($this->dbi->isSuperUser()) {
$this->dbi->selectDb('mysql');
}
$filterValue = ! empty($params['filter']) ? $params['filter'] : '';
$this->addScriptFiles(['server/variables.js']);
$variables = [];
$serverVarsResult = $this->dbi->tryQuery('SHOW SESSION VARIABLES;');
if ($serverVarsResult !== false) {
$serverVarsSession = $serverVarsResult->fetchAllKeyPair();
unset($serverVarsResult);
$serverVars = $this->dbi->fetchResult('SHOW GLOBAL VARIABLES;', 0, 1);
// list of static (i.e. non-editable) system variables
$staticVariables = ServerVariablesProvider::getImplementation()->getStaticVariables();
foreach ($serverVars as $name => $value) {
$hasSessionValue = isset($serverVarsSession[$name])
&& $serverVarsSession[$name] !== $value;
$docLink = Generator::linkToVarDocumentation(
$name,
$this->dbi->isMariaDB(),
str_replace('_', ' ', $name)
);
[$formattedValue, $isEscaped] = $this->formatVariable($name, $value);
if ($hasSessionValue) {
[$sessionFormattedValue] = $this->formatVariable($name, $serverVarsSession[$name]);
}
$variables[] = [
'name' => $name,
'is_editable' => ! in_array(strtolower($name), $staticVariables),
'doc_link' => $docLink,
'value' => $formattedValue,
'is_escaped' => $isEscaped,
'has_session_value' => $hasSessionValue,
'session_value' => $sessionFormattedValue ?? null,
];
}
}
$this->render('server/variables/index', [
'variables' => $variables,
'filter_value' => $filterValue,
'is_superuser' => $this->dbi->isSuperUser(),
'is_mariadb' => $this->dbi->isMariaDB(),
]);
}
/**
* Format Variable
*
* @param string $name variable name
* @param int|string $value variable value
*
* @return array formatted string and bool if string is HTML formatted
*/
private function formatVariable($name, $value): array
{
$isHtmlFormatted = false;
$formattedValue = $value;
if (is_numeric($value)) {
$variableType = ServerVariablesProvider::getImplementation()->getVariableType($name);
if ($variableType === 'byte') {
$isHtmlFormatted = true;
/** @var string[] $bytes */
$bytes = Util::formatByteDown($value, 3, 3);
$formattedValue = trim(
$this->template->render(
'server/variables/format_variable',
[
'valueTitle' => Util::formatNumber($value, 0),
'value' => implode(' ', $bytes),
]
)
);
} else {
$formattedValue = Util::formatNumber($value, 0);
}
}
return [
$formattedValue,
$isHtmlFormatted,
];
}
}
|
