118 lines
3.8 KiB
PHP
118 lines
3.8 KiB
PHP
<?php
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declare(strict_types=1);
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namespace PhpMyAdmin\Controllers\Server\Variables;
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use PhpMyAdmin\Controllers\AbstractController;
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use PhpMyAdmin\DatabaseInterface;
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use PhpMyAdmin\Http\ServerRequest;
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use PhpMyAdmin\Providers\ServerVariables\ServerVariablesProvider;
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use PhpMyAdmin\ResponseRenderer;
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use PhpMyAdmin\Template;
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use PhpMyAdmin\Util;
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use function __;
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use function htmlspecialchars;
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use function implode;
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use function is_numeric;
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use function mb_strtolower;
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use function preg_match;
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use function trim;
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final class SetVariableController extends AbstractController
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{
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public function __construct(ResponseRenderer $response, Template $template, private DatabaseInterface $dbi)
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{
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parent::__construct($response, $template);
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}
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/**
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* Handle the AJAX request for setting value for a single variable
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*
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* @param array $vars Request parameters
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*/
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public function __invoke(ServerRequest $request, array $vars): void
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{
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if (! $this->response->isAjax()) {
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return;
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}
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$value = (string) $request->getParsedBodyParam('varValue');
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$variableName = (string) $vars['name'];
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$matches = [];
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$variableType = ServerVariablesProvider::getImplementation()->getVariableType($variableName);
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if (
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$variableType === 'byte' && preg_match(
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'/^\s*(\d+(\.\d+)?)\s*(mb|kb|mib|kib|gb|gib)\s*$/i',
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$value,
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$matches,
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)
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) {
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$exp = ['kb' => 1, 'kib' => 1, 'mb' => 2, 'mib' => 2, 'gb' => 3, 'gib' => 3];
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$value = (float) $matches[1] * 1024 ** $exp[mb_strtolower($matches[3])];
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} else {
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$value = $this->dbi->quoteString($value);
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}
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$json = [];
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if (! preg_match('/[^a-zA-Z0-9_]+/', $variableName)) {
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$this->dbi->query('SET GLOBAL ' . $variableName . ' = ' . $value);
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// Some values are rounded down etc.
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$varValue = $this->dbi->fetchSingleRow(
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'SHOW GLOBAL VARIABLES WHERE Variable_name='
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. $this->dbi->quoteString($variableName)
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. ';',
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DatabaseInterface::FETCH_NUM,
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);
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[$formattedValue, $isHtmlFormatted] = $this->formatVariable($variableName, $varValue[1]);
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if ($isHtmlFormatted === false) {
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$json['variable'] = htmlspecialchars($formattedValue);
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} else {
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$json['variable'] = $formattedValue;
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}
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} else {
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$this->response->setRequestStatus(false);
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$json['error'] = __('Setting variable failed');
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}
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$this->response->addJSON($json);
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}
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/**
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* Format Variable
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*
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* @param string $name variable name
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* @param int|string $value variable value
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*
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* @return array formatted string and bool if string is HTML formatted
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*/
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private function formatVariable(string $name, int|string $value): array
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{
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$isHtmlFormatted = false;
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$formattedValue = $value;
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if (is_numeric($value)) {
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$variableType = ServerVariablesProvider::getImplementation()->getVariableType($name);
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if ($variableType === 'byte') {
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$isHtmlFormatted = true;
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/** @var string[] $bytes */
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$bytes = Util::formatByteDown($value, 3, 3);
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$formattedValue = trim(
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$this->template->render(
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'server/variables/format_variable',
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['valueTitle' => Util::formatNumber($value, 0), 'value' => implode(' ', $bytes)],
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),
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);
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} else {
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$formattedValue = Util::formatNumber($value, 0);
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}
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}
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return [$formattedValue, $isHtmlFormatted];
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}
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}
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