116 lines
3.3 KiB
PHP
116 lines
3.3 KiB
PHP
<?php
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declare(strict_types=1);
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namespace PhpMyAdmin;
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use PhpMyAdmin\Controllers\Database\SqlController;
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use function __;
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use function defined;
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final class DbTableExists
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{
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/**
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* Ensure the database and the table exist (else move to the "parent" script) and display headers.
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*/
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public static function check(string $db, string $table, bool $isTransformationWrapper = false): void
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{
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self::checkDatabase($db, $isTransformationWrapper);
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self::checkTable($db, $table, $isTransformationWrapper);
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}
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private static function checkDatabase(string $db, bool $isTransformationWrapper): void
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{
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$GLOBALS['message'] = $GLOBALS['message'] ?? null;
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$GLOBALS['show_as_php'] = $GLOBALS['show_as_php'] ?? null;
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if (! empty($GLOBALS['is_db'])) {
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return;
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}
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$GLOBALS['is_db'] = false;
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if ($db !== '') {
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$GLOBALS['is_db'] = @$GLOBALS['dbi']->selectDb($db);
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}
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if ($GLOBALS['is_db'] || $isTransformationWrapper) {
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return;
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}
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$response = ResponseRenderer::getInstance();
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if ($response->isAjax()) {
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$response->setRequestStatus(false);
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$response->addJSON(
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'message',
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Message::error(__('No databases selected.'))
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);
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exit;
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}
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$urlParams = ['reload' => 1];
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if (isset($GLOBALS['message'])) {
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$urlParams['message'] = $GLOBALS['message'];
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}
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if (! empty($GLOBALS['sql_query'])) {
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$urlParams['sql_query'] = $GLOBALS['sql_query'];
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}
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if (isset($GLOBALS['show_as_php'])) {
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$urlParams['show_as_php'] = $GLOBALS['show_as_php'];
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}
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Core::sendHeaderLocation('./index.php?route=/' . Url::getCommonRaw($urlParams, '&'));
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exit;
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}
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private static function checkTable(string $db, string $table, bool $isTransformationWrapper): void
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{
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if (! empty($GLOBALS['is_table']) || defined('PMA_SUBMIT_MULT') || defined('TABLE_MAY_BE_ABSENT')) {
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return;
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}
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$GLOBALS['is_table'] = false;
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if ($table !== '') {
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$GLOBALS['is_table'] = $GLOBALS['dbi']->getCache()->getCachedTableContent([$db, $table], false);
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if ($GLOBALS['is_table']) {
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return;
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}
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$result = $GLOBALS['dbi']->tryQuery('SHOW TABLES LIKE \'' . $GLOBALS['dbi']->escapeString($table) . '\';');
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$GLOBALS['is_table'] = $result && $result->numRows();
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}
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if ($GLOBALS['is_table']) {
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return;
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}
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if ($isTransformationWrapper) {
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exit;
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}
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if ($table !== '') {
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/**
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* SHOW TABLES doesn't show temporary tables, so try select
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* (as it can happen just in case temporary table, it should be fast):
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*/
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$result = $GLOBALS['dbi']->tryQuery('SELECT COUNT(*) FROM ' . Util::backquote($table) . ';');
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$GLOBALS['is_table'] = $result && $result->numRows();
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}
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if ($GLOBALS['is_table']) {
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return;
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}
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/** @var SqlController $controller */
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$controller = Core::getContainerBuilder()->get(SqlController::class);
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$controller(Common::getRequest());
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exit;
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}
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}
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