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<?php
declare(strict_types=1);
namespace PhpMyAdmin\Controllers;
use PhpMyAdmin\Bookmark;
use PhpMyAdmin\Console;
use PhpMyAdmin\Core;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Encoding;
use PhpMyAdmin\File;
use PhpMyAdmin\Html\Generator;
use PhpMyAdmin\Import;
use PhpMyAdmin\Message;
use PhpMyAdmin\ParseAnalyze;
use PhpMyAdmin\Plugins;
use PhpMyAdmin\Plugins\ImportPlugin;
use PhpMyAdmin\Response;
use PhpMyAdmin\Sql;
use PhpMyAdmin\Template;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;
use Throwable;
use function define;
use function htmlspecialchars;
use function in_array;
use function ini_get;
use function ini_set;
use function intval;
use function is_array;
use function is_link;
use function is_uploaded_file;
use function mb_strlen;
use function mb_strtolower;
use function preg_match;
use function preg_quote;
use function preg_replace;
use function sprintf;
use function strlen;
use function substr;
use function time;
use function trim;
final class ImportController extends AbstractController
{
/** @var Import */
private $import;
/** @var Sql */
private $sql;
/** @var DatabaseInterface */
private $dbi;
/**
* @param Response $response
* @param DatabaseInterface $dbi
*/
public function __construct($response, Template $template, Import $import, Sql $sql, $dbi)
{
parent::__construct($response, $template);
$this->import = $import;
$this->sql = $sql;
$this->dbi = $dbi;
}
public function index(): void
{
global $cfg, $collation_connection, $db, $import_type, $table, $goto, $display_query, $PMA_Theme;
global $format, $local_import_file, $ajax_reload, $import_text, $sql_query, $message, $err_url, $url_params;
global $memory_limit, $read_limit, $finished, $offset, $charset_conversion, $charset_of_file;
global $timestamp, $maximum_time, $timeout_passed, $import_file, $go_sql, $sql_file, $error, $max_sql_len, $msg;
global $sql_query_disabled, $executed_queries, $run_query, $reset_charset, $bookmark_created;
global $result, $import_file_name, $sql_data, $import_notice, $read_multiply, $my_die, $active_page;
global $show_as_php, $reload, $charset_connection, $is_js_confirmed, $MAX_FILE_SIZE, $message_to_show;
global $noplugin, $skip_queries;
$charset_of_file = $_POST['charset_of_file'] ?? null;
$format = $_POST['format'] ?? '';
$import_type = $_POST['import_type'] ?? null;
$is_js_confirmed = $_POST['is_js_confirmed'] ?? null;
$MAX_FILE_SIZE = $_POST['MAX_FILE_SIZE'] ?? null;
$message_to_show = $_POST['message_to_show'] ?? null;
$noplugin = $_POST['noplugin'] ?? null;
$skip_queries = $_POST['skip_queries'] ?? null;
$local_import_file = $_POST['local_import_file'] ?? null;
$show_as_php = $_POST['show_as_php'] ?? null;
/* Enable LOAD DATA LOCAL INFILE for LDI plugin */
if ($format === 'ldi') {
define('PMA_ENABLE_LDI', 1);
}
// If there is a request to 'Simulate DML'.
if (isset($_POST['simulate_dml'])) {
$this->import->handleSimulateDmlRequest();
return;
}
// If it's a refresh console bookmarks request
if (isset($_GET['console_bookmark_refresh'])) {
$this->response->addJSON(
'console_message_bookmark',
Console::getBookmarkContent()
);
return;
}
// If it's a console bookmark add request
if (isset($_POST['console_bookmark_add'])) {
if (! isset($_POST['label'], $_POST['db'], $_POST['bookmark_query'], $_POST['shared'])) {
$this->response->addJSON('message', __('Incomplete params'));
return;
}
$cfgBookmark = Bookmark::getParams($cfg['Server']['user']);
if (! is_array($cfgBookmark)) {
$cfgBookmark = [];
}
$bookmarkFields = [
'bkm_database' => $_POST['db'],
'bkm_user' => $cfgBookmark['user'],
'bkm_sql_query' => $_POST['bookmark_query'],
'bkm_label' => $_POST['label'],
];
$isShared = ($_POST['shared'] === 'true');
$bookmark = Bookmark::createBookmark(
$this->dbi,
$cfg['Server']['user'],
$bookmarkFields,
$isShared
);
if ($bookmark !== false && $bookmark->save()) {
$this->response->addJSON('message', __('Succeeded'));
$this->response->addJSON('data', $bookmarkFields);
$this->response->addJSON('isShared', $isShared);
} else {
$this->response->addJSON('message', __('Failed'));
}
return;
}
// reset import messages for ajax request
$_SESSION['Import_message']['message'] = null;
$_SESSION['Import_message']['go_back_url'] = null;
// default values
$reload = false;
// Use to identify current cycle is executing
// a multiquery statement or stored routine
if (! isset($_SESSION['is_multi_query'])) {
$_SESSION['is_multi_query'] = false;
}
$ajax_reload = [];
$import_text = '';
// Are we just executing plain query or sql file?
// (eg. non import, but query box/window run)
if (! empty($sql_query)) {
// apply values for parameters
if (! empty($_POST['parameterized'])
&& ! empty($_POST['parameters'])
&& is_array($_POST['parameters'])
) {
$parameters = $_POST['parameters'];
foreach ($parameters as $parameter => $replacement) {
$quoted = preg_quote($parameter, '/');
// making sure that :param does not apply values to :param1
$sql_query = preg_replace(
'/' . $quoted . '([^a-zA-Z0-9_])/',
$this->dbi->escapeString($replacement) . '${1}',
$sql_query
);
// for parameters the appear at the end of the string
$sql_query = preg_replace(
'/' . $quoted . '$/',
$this->dbi->escapeString($replacement),
$sql_query
);
}
}
// run SQL query
$import_text = $sql_query;
$import_type = 'query';
$format = 'sql';
$_SESSION['sql_from_query_box'] = true;
// If there is a request to ROLLBACK when finished.
if (isset($_POST['rollback_query'])) {
$this->import->handleRollbackRequest($import_text);
}
// refresh navigation and main panels
if (preg_match('/^(DROP)\s+(VIEW|TABLE|DATABASE|SCHEMA)\s+/i', $sql_query)) {
$reload = true;
$ajax_reload['reload'] = true;
}
// refresh navigation panel only
if (preg_match(
'/^(CREATE|ALTER)\s+(VIEW|TABLE|DATABASE|SCHEMA)\s+/i',
$sql_query
)) {
$ajax_reload['reload'] = true;
}
// do a dynamic reload if table is RENAMED
// (by sending the instruction to the AJAX response handler)
if (preg_match(
'/^RENAME\s+TABLE\s+(.*?)\s+TO\s+(.*?)($|;|\s)/i',
$sql_query,
$rename_table_names
)) {
$ajax_reload['reload'] = true;
$ajax_reload['table_name'] = Util::unQuote(
$rename_table_names[2]
);
}
$sql_query = '';
} elseif (! empty($sql_file)) {
// run uploaded SQL file
$import_file = $sql_file;
$import_type = 'queryfile';
$format = 'sql';
unset($sql_file);
} elseif (! empty($_POST['id_bookmark'])) {
// run bookmark
$import_type = 'query';
$format = 'sql';
}
// If we didn't get any parameters, either user called this directly, or
// upload limit has been reached, let's assume the second possibility.
if ($_POST == [] && $_GET == []) {
$message = Message::error(
__(
'You probably tried to upload a file that is too large. Please refer ' .
'to %sdocumentation%s for a workaround for this limit.'
)
);
$message->addParam('[doc@faq1-16]');
$message->addParam('[/doc]');
// so we can obtain the message
$_SESSION['Import_message']['message'] = $message->getDisplay();
$_SESSION['Import_message']['go_back_url'] = $goto;
$this->response->setRequestStatus(false);
$this->response->addJSON('message', $message);
return; // the footer is displayed automatically
}
// Add console message id to response output
if (isset($_POST['console_message_id'])) {
$this->response->addJSON('console_message_id', $_POST['console_message_id']);
}
/**
* Sets globals from $_POST patterns, for import plugins
* We only need to load the selected plugin
*/
if (! in_array(
$format,
[
'csv',
'ldi',
'mediawiki',
'ods',
'shp',
'sql',
'xml',
]
)
) {
// this should not happen for a normal user
// but only during an attack
Core::fatalError('Incorrect format parameter');
}
$post_patterns = [
'/^force_file_/',
'/^' . $format . '_/',
];
Core::setPostAsGlobal($post_patterns);
// Check needed parameters
Util::checkParameters(['import_type', 'format']);
// We don't want anything special in format
$format = Core::securePath($format);
if (strlen($table) > 0 && strlen($db) > 0) {
$url_params = [
'db' => $db,
'table' => $table,
];
} elseif (strlen($db) > 0) {
$url_params = ['db' => $db];
} else {
$url_params = [];
}
// Create error and goto url
if ($import_type === 'table') {
$goto = Url::getFromRoute('/table/import');
} elseif ($import_type === 'database') {
$goto = Url::getFromRoute('/database/import');
} elseif ($import_type === 'server') {
$goto = Url::getFromRoute('/server/import');
} elseif (empty($goto) || ! preg_match('@^index\.php$@i', $goto)) {
if (strlen($table) > 0 && strlen($db) > 0) {
$goto = Url::getFromRoute('/table/structure');
} elseif (strlen($db) > 0) {
$goto = Url::getFromRoute('/database/structure');
} else {
$goto = Url::getFromRoute('/server/sql');
}
}
$err_url = $goto . Url::getCommon($url_params, '&');
$_SESSION['Import_message']['go_back_url'] = $err_url;
if (strlen($db) > 0) {
$this->dbi->selectDb($db);
}
Util::setTimeLimit();
if (! empty($cfg['MemoryLimit'])) {
ini_set('memory_limit', $cfg['MemoryLimit']);
}
$timestamp = time();
if (isset($_POST['allow_interrupt'])) {
$maximum_time = ini_get('max_execution_time');
} else {
$maximum_time = 0;
}
// set default values
$timeout_passed = false;
$error = false;
$read_multiply = 1;
$finished = false;
$offset = 0;
$max_sql_len = 0;
$sql_query = '';
$sql_query_disabled = false;
$go_sql = false;
$executed_queries = 0;
$run_query = true;
$charset_conversion = false;
$reset_charset = false;
$bookmark_created = false;
$msg = 'Sorry an unexpected error happened!';
/** @var mixed|bool $result */
$result = false;
// Bookmark Support: get a query back from bookmark if required
if (! empty($_POST['id_bookmark'])) {
$id_bookmark = (int) $_POST['id_bookmark'];
switch ($_POST['action_bookmark']) {
case 0: // bookmarked query that have to be run
$bookmark = Bookmark::get(
$this->dbi,
$cfg['Server']['user'],
$db,
$id_bookmark,
'id',
isset($_POST['action_bookmark_all'])
);
if (! $bookmark instanceof Bookmark) {
break;
}
if (! empty($_POST['bookmark_variable'])) {
$import_text = $bookmark->applyVariables(
$_POST['bookmark_variable']
);
} else {
$import_text = $bookmark->getQuery();
}
// refresh navigation and main panels
if (preg_match(
'/^(DROP)\s+(VIEW|TABLE|DATABASE|SCHEMA)\s+/i',
$import_text
)) {
$reload = true;
$ajax_reload['reload'] = true;
}
// refresh navigation panel only
if (preg_match(
'/^(CREATE|ALTER)\s+(VIEW|TABLE|DATABASE|SCHEMA)\s+/i',
$import_text
)
) {
$ajax_reload['reload'] = true;
}
break;
case 1: // bookmarked query that have to be displayed
$bookmark = Bookmark::get(
$this->dbi,
$cfg['Server']['user'],
$db,
$id_bookmark
);
if (! $bookmark instanceof Bookmark) {
break;
}
$import_text = $bookmark->getQuery();
if ($this->response->isAjax()) {
$message = Message::success(__('Showing bookmark'));
$this->response->setRequestStatus($message->isSuccess());
$this->response->addJSON('message', $message);
$this->response->addJSON('sql_query', $import_text);
$this->response->addJSON('action_bookmark', $_POST['action_bookmark']);
return;
} else {
$run_query = false;
}
break;
case 2: // bookmarked query that have to be deleted
$bookmark = Bookmark::get(
$this->dbi,
$cfg['Server']['user'],
$db,
$id_bookmark
);
if (! $bookmark instanceof Bookmark) {
break;
}
$bookmark->delete();
if ($this->response->isAjax()) {
$message = Message::success(
__('The bookmark has been deleted.')
);
$this->response->setRequestStatus($message->isSuccess());
$this->response->addJSON('message', $message);
$this->response->addJSON('action_bookmark', $_POST['action_bookmark']);
$this->response->addJSON('id_bookmark', $id_bookmark);
return;
} else {
$run_query = false;
$error = true; // this is kind of hack to skip processing the query
}
break;
}
}
// Do no run query if we show PHP code
if (isset($show_as_php)) {
$run_query = false;
$go_sql = true;
}
// We can not read all at once, otherwise we can run out of memory
$memory_limit = trim((string) ini_get('memory_limit'));
// 2 MB as default
if (empty($memory_limit)) {
$memory_limit = 2 * 1024 * 1024;
}
// In case no memory limit we work on 10MB chunks
if ($memory_limit == -1) {
$memory_limit = 10 * 1024 * 1024;
}
// Calculate value of the limit
$memoryUnit = mb_strtolower(substr((string) $memory_limit, -1));
if ($memoryUnit === 'm') {
$memory_limit = (int) substr((string) $memory_limit, 0, -1) * 1024 * 1024;
} elseif ($memoryUnit === 'k') {
$memory_limit = (int) substr((string) $memory_limit, 0, -1) * 1024;
} elseif ($memoryUnit === 'g') {
$memory_limit = (int) substr((string) $memory_limit, 0, -1) * 1024 * 1024 * 1024;
} else {
$memory_limit = (int) $memory_limit;
}
// Just to be sure, there might be lot of memory needed for uncompression
$read_limit = $memory_limit / 8;
// handle filenames
if (isset($_FILES['import_file'])) {
$import_file = $_FILES['import_file']['tmp_name'];
$import_file_name = $_FILES['import_file']['name'];
}
if (! empty($local_import_file) && ! empty($cfg['UploadDir'])) {
// sanitize $local_import_file as it comes from a POST
$local_import_file = Core::securePath($local_import_file);
$import_file = Util::userDir($cfg['UploadDir'])
. $local_import_file;
/*
* Do not allow symlinks to avoid security issues
* (user can create symlink to file they can not access,
* but phpMyAdmin can).
*/
if (@is_link($import_file)) {
$import_file = 'none';
}
} elseif (empty($import_file) || ! is_uploaded_file($import_file)) {
$import_file = 'none';
}
// Do we have file to import?
if ($import_file !== 'none' && ! $error) {
/**
* Handle file compression
*/
$importHandle = new File($import_file);
$importHandle->checkUploadedFile();
if ($importHandle->isError()) {
/** @var Message $errorMessage */
$errorMessage = $importHandle->getError();
$importHandle->close();
$_SESSION['Import_message']['message'] = $errorMessage->getDisplay();
$this->response->setRequestStatus(false);
$this->response->addJSON('message', $errorMessage->getDisplay());
$this->response->addHTML($errorMessage->getDisplay());
return;
}
$importHandle->setDecompressContent(true);
$importHandle->open();
if ($importHandle->isError()) {
/** @var Message $errorMessage */
$errorMessage = $importHandle->getError();
$importHandle->close();
$_SESSION['Import_message']['message'] = $errorMessage->getDisplay();
$this->response->setRequestStatus(false);
$this->response->addJSON('message', $errorMessage->getDisplay());
$this->response->addHTML($errorMessage->getDisplay());
return;
}
} elseif (! $error && (! isset($import_text) || empty($import_text))) {
$message = Message::error(
__(
'No data was received to import. Either no file name was ' .
'submitted, or the file size exceeded the maximum size permitted ' .
'by your PHP configuration. See [doc@faq1-16]FAQ 1.16[/doc].'
)
);
$_SESSION['Import_message']['message'] = $message->getDisplay();
$this->response->setRequestStatus(false);
$this->response->addJSON('message', $message->getDisplay());
$this->response->addHTML($message->getDisplay());
return;
}
// Convert the file's charset if necessary
if (Encoding::isSupported() && isset($charset_of_file)) {
if ($charset_of_file !== 'utf-8') {
$charset_conversion = true;
}
} elseif (isset($charset_of_file) && $charset_of_file !== 'utf-8') {
$this->dbi->query('SET NAMES \'' . $charset_of_file . '\'');
// We can not show query in this case, it is in different charset
$sql_query_disabled = true;
$reset_charset = true;
}
// Something to skip? (because timeout has passed)
if (! $error && isset($_POST['skip'])) {
$original_skip = $skip = intval($_POST['skip']);
while ($skip > 0 && ! $finished) {
$this->import->getNextChunk($importHandle ?? null, $skip < $read_limit ? $skip : $read_limit);
// Disable read progressivity, otherwise we eat all memory!
$read_multiply = 1;
$skip -= $read_limit;
}
unset($skip);
}
// This array contain the data like number of valid sql queries in the statement
// and complete valid sql statement (which affected for rows)
$sql_data = [
'valid_sql' => [],
'valid_queries' => 0,
];
if (! $error) {
/**
* @var ImportPlugin $import_plugin
*/
$import_plugin = Plugins::getPlugin(
'import',
$format,
'libraries/classes/Plugins/Import/',
$import_type
);
if ($import_plugin == null) {
$message = Message::error(
__('Could not load import plugins, please check your installation!')
);
$_SESSION['Import_message']['message'] = $message->getDisplay();
$this->response->setRequestStatus(false);
$this->response->addJSON('message', $message->getDisplay());
$this->response->addHTML($message->getDisplay());
return;
}
// Do the real import
$default_fk_check = Util::handleDisableFKCheckInit();
try {
$import_plugin->doImport($importHandle ?? null, $sql_data);
Util::handleDisableFKCheckCleanup($default_fk_check);
} catch (Throwable $e) {
Util::handleDisableFKCheckCleanup($default_fk_check);
throw $e;
}
}
if (isset($importHandle)) {
$importHandle->close();
}
// Reset charset back, if we did some changes
if ($reset_charset) {
$this->dbi->query('SET CHARACTER SET ' . $charset_connection);
$this->dbi->setCollation($collation_connection);
}
// Show correct message
if (! empty($id_bookmark) && $_POST['action_bookmark'] == 2) {
$message = Message::success(__('The bookmark has been deleted.'));
$display_query = $import_text;
$error = false; // unset error marker, it was used just to skip processing
} elseif (! empty($id_bookmark) && $_POST['action_bookmark'] == 1) {
$message = Message::notice(__('Showing bookmark'));
} elseif ($bookmark_created) {
$special_message = '[br]' . sprintf(
__('Bookmark %s has been created.'),
htmlspecialchars($_POST['bkm_label'])
);
} elseif ($finished && ! $error) {
// Do not display the query with message, we do it separately
$display_query = ';';
if ($import_type !== 'query') {
$message = Message::success(
'<em>'
. _ngettext(
'Import has been successfully finished, %d query executed.',
'Import has been successfully finished, %d queries executed.',
$executed_queries
)
. '</em>'
);
$message->addParam($executed_queries);
if (! empty($import_notice)) {
$message->addHtml($import_notice);
}
if (! empty($local_import_file)) {
$message->addText('(' . $local_import_file . ')');
} else {
$message->addText('(' . $_FILES['import_file']['name'] . ')');
}
}
}
// Did we hit timeout? Tell it user.
if ($timeout_passed) {
$url_params['timeout_passed'] = '1';
$url_params['offset'] = $offset;
if (isset($local_import_file)) {
$url_params['local_import_file'] = $local_import_file;
}
$importUrl = $err_url = $goto . Url::getCommon($url_params, '&');
$message = Message::error(
__(
'Script timeout passed, if you want to finish import,'
. ' please %sresubmit the same file%s and import will resume.'
)
);
$message->addParamHtml('<a href="' . $importUrl . '">');
$message->addParamHtml('</a>');
if ($offset == 0 || (isset($original_skip) && $original_skip == $offset)) {
$message->addText(
__(
'However on last run no data has been parsed,'
. ' this usually means phpMyAdmin won\'t be able to'
. ' finish this import unless you increase php time limits.'
)
);
}
}
// if there is any message, copy it into $_SESSION as well,
// so we can obtain it by AJAX call
if (isset($message)) {
$_SESSION['Import_message']['message'] = $message->getDisplay();
}
// Parse and analyze the query, for correct db and table name
// in case of a query typed in the query window
// (but if the query is too large, in case of an imported file, the parser
// can choke on it so avoid parsing)
$sqlLength = mb_strlen($sql_query);
if ($sqlLength <= $cfg['MaxCharactersInDisplayedSQL']) {
[
$analyzed_sql_results,
$db,
$table_from_sql,
] = ParseAnalyze::sqlQuery($sql_query, $db);
$reload = $analyzed_sql_results['reload'];
$offset = $analyzed_sql_results['offset'];
if ($table != $table_from_sql && ! empty($table_from_sql)) {
$table = $table_from_sql;
}
}
// There was an error?
if (isset($my_die)) {
foreach ($my_die as $key => $die) {
Generator::mysqlDie(
$die['error'],
$die['sql'],
false,
$err_url,
$error
);
}
}
if ($go_sql) {
if (! empty($sql_data) && ($sql_data['valid_queries'] > 1)) {
$_SESSION['is_multi_query'] = true;
$sql_queries = $sql_data['valid_sql'];
} else {
$sql_queries = [$sql_query];
}
$html_output = '';
foreach ($sql_queries as $sql_query) {
// parse sql query
[
$analyzed_sql_results,
$db,
$table_from_sql,
] = ParseAnalyze::sqlQuery($sql_query, $db);
$offset = $analyzed_sql_results['offset'];
$reload = $analyzed_sql_results['reload'];
// Check if User is allowed to issue a 'DROP DATABASE' Statement
if ($this->sql->hasNoRightsToDropDatabase(
$analyzed_sql_results,
$cfg['AllowUserDropDatabase'],
$this->dbi->isSuperUser()
)) {
Generator::mysqlDie(
__('"DROP DATABASE" statements are disabled.'),
'',
false,
$_SESSION['Import_message']['go_back_url']
);
return;
}
if ($table != $table_from_sql && ! empty($table_from_sql)) {
$table = $table_from_sql;
}
$html_output .= $this->sql->executeQueryAndGetQueryResponse(
$analyzed_sql_results, // analyzed_sql_results
false, // is_gotofile
$db, // db
$table, // table
null, // find_real_end
null, // sql_query_for_bookmark - see below
null, // extra_data
null, // message_to_show
null, // sql_data
$goto, // goto
$PMA_Theme->getImgPath(),
null, // disp_query
null, // disp_message
$sql_query, // sql_query
null // complete_query
);
}
// sql_query_for_bookmark is not included in Sql::executeQueryAndGetQueryResponse
// since only one bookmark has to be added for all the queries submitted through
// the SQL tab
if (! empty($_POST['bkm_label']) && ! empty($import_text)) {
$cfgBookmark = Bookmark::getParams($cfg['Server']['user']);
if (! is_array($cfgBookmark)) {
$cfgBookmark = [];
}
$this->sql->storeTheQueryAsBookmark(
$db,
$cfgBookmark['user'],
$_POST['sql_query'],
$_POST['bkm_label'],
isset($_POST['bkm_replace'])
);
}
$this->response->addJSON('ajax_reload', $ajax_reload);
$this->response->addHTML($html_output);
return;
}
if ($result) {
// Save a Bookmark with more than one queries (if Bookmark label given).
if (! empty($_POST['bkm_label']) && ! empty($import_text)) {
$cfgBookmark = Bookmark::getParams($cfg['Server']['user']);
if (! is_array($cfgBookmark)) {
$cfgBookmark = [];
}
$this->sql->storeTheQueryAsBookmark(
$db,
$cfgBookmark['user'],
$_POST['sql_query'],
$_POST['bkm_label'],
isset($_POST['bkm_replace'])
);
}
$this->response->setRequestStatus(true);
$this->response->addJSON('message', Message::success($msg));
$this->response->addJSON(
'sql_query',
Generator::getMessage($msg, $sql_query, 'success')
);
} elseif ($result === false) {
$this->response->setRequestStatus(false);
$this->response->addJSON('message', Message::error($msg));
} else {
$active_page = $goto;
include ROOT_PATH . $goto;
}
// If there is request for ROLLBACK in the end.
if (! isset($_POST['rollback_query'])) {
return;
}
$this->dbi->query('ROLLBACK');
}
}
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