98 lines
2.8 KiB
PHP
98 lines
2.8 KiB
PHP
<?php
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declare(strict_types=1);
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namespace PhpMyAdmin\Controllers\Table;
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use PhpMyAdmin\Controllers\AbstractController;
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use PhpMyAdmin\Core;
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use PhpMyAdmin\DatabaseInterface;
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use PhpMyAdmin\Html\Generator;
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use PhpMyAdmin\Http\ServerRequest;
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use PhpMyAdmin\Message;
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use PhpMyAdmin\Mime;
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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 ini_set;
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use function mb_strlen;
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use function sprintf;
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/**
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* Provides download to a given field defined in parameters.
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*/
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class GetFieldController extends AbstractController
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{
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public function __construct(
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ResponseRenderer $response,
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Template $template,
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private DatabaseInterface $dbi,
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) {
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parent::__construct($response, $template);
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}
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public function __invoke(ServerRequest $request): void
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{
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$this->response->disable();
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$this->checkParameters(['db', 'table']);
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/* Select database */
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if (! $this->dbi->selectDb($GLOBALS['db'])) {
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Generator::mysqlDie(
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sprintf(__('\'%s\' database does not exist.'), htmlspecialchars($GLOBALS['db'])),
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'',
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false,
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);
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}
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/* Check if table exists */
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if (! $this->dbi->getColumns($GLOBALS['db'], $GLOBALS['table'])) {
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Generator::mysqlDie(__('Invalid table name'));
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}
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$whereClause = (string) $request->getQueryParam('where_clause', '');
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$whereClauseSign = (string) $request->getQueryParam('where_clause_sign', '');
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if (
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$whereClause === '' || $whereClauseSign === ''
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|| ! Core::checkSqlQuerySignature($whereClause, $whereClauseSign)
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) {
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$this->response->setRequestStatus(false);
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/* l10n: In case a SQL query did not pass a security check */
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$this->response->addHTML(Message::error(__('There is an issue with your request.'))->getDisplay());
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return;
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}
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$transformKey = (string) $request->getQueryParam('transform_key', '');
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/* Grab data */
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$sql = 'SELECT ' . Util::backquote($transformKey)
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. ' FROM ' . Util::backquote($GLOBALS['table'])
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. ' WHERE ' . $whereClause . ';';
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$result = $this->dbi->fetchValue($sql);
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/* Check return code */
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if ($result === false) {
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Generator::mysqlDie(
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__('MySQL returned an empty result set (i.e. zero rows).'),
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$sql,
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);
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return;
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}
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/* Avoid corrupting data */
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ini_set('url_rewriter.tags', '');
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Core::downloadHeader(
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$GLOBALS['table'] . '-' . $transformKey . '.bin',
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Mime::detect($result),
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mb_strlen($result, '8bit'),
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);
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echo $result;
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}
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}
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