1537 lines
49 KiB
PHP
1537 lines
49 KiB
PHP
<?php
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declare(strict_types=1);
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namespace PhpMyAdmin;
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use PhpMyAdmin\SqlParser\Parser;
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use PhpMyAdmin\SqlParser\Statements\DeleteStatement;
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use PhpMyAdmin\SqlParser\Statements\InsertStatement;
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use PhpMyAdmin\SqlParser\Statements\ReplaceStatement;
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use PhpMyAdmin\SqlParser\Statements\UpdateStatement;
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use PhpMyAdmin\SqlParser\Utils\Query;
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use function __;
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use function abs;
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use function count;
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use function explode;
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use function function_exists;
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use function htmlspecialchars;
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use function implode;
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use function is_array;
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use function is_numeric;
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use function max;
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use function mb_chr;
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use function mb_ord;
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use function mb_stripos;
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use function mb_strlen;
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use function mb_strpos;
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use function mb_strtoupper;
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use function mb_substr;
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use function mb_substr_count;
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use function preg_match;
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use function preg_replace;
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use function sprintf;
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use function str_contains;
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use function str_starts_with;
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use function strcmp;
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use function strlen;
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use function strpos;
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use function substr;
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use function time;
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use function trim;
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/**
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* Library that provides common import functions that are used by import plugins
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*/
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class Import
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{
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/* MySQL type defs */
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public const NONE = 0;
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public const VARCHAR = 1;
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public const INT = 2;
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public const DECIMAL = 3;
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public const BIGINT = 4;
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public const GEOMETRY = 5;
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/* Decimal size defs */
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public const M = 0;
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public const D = 1;
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public const FULL = 2;
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/* Table array defs */
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public const TBL_NAME = 0;
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public const COL_NAMES = 1;
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public const ROWS = 2;
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/* Analysis array defs */
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public const TYPES = 0;
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public const SIZES = 1;
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public const FORMATTEDSQL = 2;
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public function __construct()
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{
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global $dbi;
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$GLOBALS['cfg']['Server']['DisableIS'] = false;
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$checkUserPrivileges = new CheckUserPrivileges($dbi);
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$checkUserPrivileges->getPrivileges();
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}
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/**
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* Checks whether timeout is getting close
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*/
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public function checkTimeout(): bool
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{
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global $timestamp, $maximum_time, $timeout_passed;
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if ($maximum_time == 0) {
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return false;
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}
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if ($timeout_passed) {
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return true;
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/* 5 in next row might be too much */
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}
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if (time() - $timestamp > $maximum_time - 5) {
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$timeout_passed = true;
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return true;
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}
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return false;
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}
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/**
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* Runs query inside import buffer. This is needed to allow displaying
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* of last SELECT, SHOW or HANDLER results and similar nice stuff.
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*
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* @param string $sql query to run
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* @param string $full query to display, this might be commented
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* @param array $sqlData SQL parse data storage
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*/
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public function executeQuery(string $sql, string $full, array &$sqlData): void
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{
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global $sql_query, $my_die, $error, $reload, $result, $msg, $cfg, $sql_query_disabled, $db, $dbi;
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$result = $dbi->tryQuery($sql);
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// USE query changes the database, son need to track
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// while running multiple queries
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$isUseQuery = mb_stripos($sql, 'use ') !== false;
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$msg = '# ';
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if ($result === false) { // execution failed
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if (! isset($my_die)) {
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$my_die = [];
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}
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$my_die[] = [
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'sql' => $full,
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'error' => $dbi->getError(),
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];
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$msg .= __('Error');
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if (! $cfg['IgnoreMultiSubmitErrors']) {
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$error = true;
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return;
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}
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} else {
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$aNumRows = (int) $result->numRows();
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$aAffectedRows = (int) @$dbi->affectedRows();
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if ($aNumRows > 0) {
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$msg .= __('Rows') . ': ' . $aNumRows;
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} elseif ($aAffectedRows > 0) {
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$message = Message::getMessageForAffectedRows($aAffectedRows);
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$msg .= $message->getMessage();
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} else {
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$msg .= __('MySQL returned an empty result set (i.e. zero rows).');
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}
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if (($aNumRows > 0) || $isUseQuery) {
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$sqlData['valid_sql'][] = $sql;
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if (! isset($sqlData['valid_queries'])) {
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$sqlData['valid_queries'] = 0;
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}
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$sqlData['valid_queries']++;
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}
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}
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if (! $sql_query_disabled) {
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$sql_query .= $msg . "\n";
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}
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// If a 'USE <db>' SQL-clause was found and the query
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// succeeded, set our current $db to the new one
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if ($result != false) {
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[$db, $reload] = $this->lookForUse($sql, $db, $reload);
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}
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$pattern = '@^[\s]*(DROP|CREATE)[\s]+(IF EXISTS[[:space:]]+)?(TABLE|DATABASE)[[:space:]]+(.+)@im';
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if ($result == false || ! preg_match($pattern, $sql)) {
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return;
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}
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$reload = true;
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}
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/**
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* Runs query inside import buffer. This is needed to allow displaying
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* of last SELECT, SHOW or HANDLER results and similar nice stuff.
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*
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* @param string $sql query to run
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* @param string $full query to display, this might be commented
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* @param array $sqlData SQL parse data storage
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*/
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public function runQuery(
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string $sql = '',
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string $full = '',
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array &$sqlData = []
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): void {
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global $import_run_buffer, $go_sql, $complete_query, $display_query, $sql_query, $msg,
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$skip_queries, $executed_queries, $max_sql_len, $read_multiply, $sql_query_disabled, $run_query;
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$read_multiply = 1;
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if (! isset($import_run_buffer)) {
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// Do we have something to push into buffer?
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$import_run_buffer = $this->runQueryPost($import_run_buffer, $sql, $full);
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return;
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}
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// Should we skip something?
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if ($skip_queries > 0) {
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$skip_queries--;
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// Do we have something to push into buffer?
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$import_run_buffer = $this->runQueryPost($import_run_buffer, $sql, $full);
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return;
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}
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if (! empty($import_run_buffer['sql']) && trim($import_run_buffer['sql']) != '') {
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$max_sql_len = max(
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$max_sql_len,
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mb_strlen($import_run_buffer['sql'])
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);
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if (! $sql_query_disabled) {
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$sql_query .= $import_run_buffer['full'];
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}
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$executed_queries++;
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if ($run_query && $executed_queries < 50) {
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$go_sql = true;
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if (! $sql_query_disabled) {
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$complete_query = $sql_query;
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$display_query = $sql_query;
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} else {
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$complete_query = '';
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$display_query = '';
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}
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$sql_query = $import_run_buffer['sql'];
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$sqlData['valid_sql'][] = $import_run_buffer['sql'];
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$sqlData['valid_full'][] = $import_run_buffer['full'];
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if (! isset($sqlData['valid_queries'])) {
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$sqlData['valid_queries'] = 0;
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}
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$sqlData['valid_queries']++;
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} elseif ($run_query) {
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/* Handle rollback from go_sql */
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if ($go_sql && isset($sqlData['valid_full'])) {
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$queries = $sqlData['valid_sql'];
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$fulls = $sqlData['valid_full'];
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$count = $sqlData['valid_queries'];
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$go_sql = false;
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$sqlData['valid_sql'] = [];
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$sqlData['valid_queries'] = 0;
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unset($sqlData['valid_full']);
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for ($i = 0; $i < $count; $i++) {
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$this->executeQuery($queries[$i], $fulls[$i], $sqlData);
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}
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}
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$this->executeQuery($import_run_buffer['sql'], $import_run_buffer['full'], $sqlData);
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}
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} elseif (! empty($import_run_buffer['full'])) {
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if ($go_sql) {
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$complete_query .= $import_run_buffer['full'];
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$display_query .= $import_run_buffer['full'];
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} elseif (! $sql_query_disabled) {
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$sql_query .= $import_run_buffer['full'];
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}
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}
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// check length of query unless we decided to pass it to /sql
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// (if $run_query is false, we are just displaying so show
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// the complete query in the textarea)
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if (! $go_sql && $run_query && ! empty($sql_query)) {
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if (mb_strlen($sql_query) > 50000 || $executed_queries > 50 || $max_sql_len > 1000) {
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$sql_query = '';
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$sql_query_disabled = true;
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}
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}
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// Do we have something to push into buffer?
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$import_run_buffer = $this->runQueryPost($import_run_buffer, $sql, $full);
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// In case of ROLLBACK, notify the user.
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if (! isset($_POST['rollback_query'])) {
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return;
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}
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$msg .= __('[ROLLBACK occurred.]');
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}
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/**
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* Return import run buffer
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*
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* @param array $importRunBuffer Buffer of queries for import
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* @param string $sql SQL query
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* @param string $full Query to display
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*
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* @return array Buffer of queries for import
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*/
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public function runQueryPost(
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?array $importRunBuffer,
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string $sql,
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string $full
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): ?array {
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if (! empty($sql) || ! empty($full)) {
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return [
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'sql' => $sql . ';',
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'full' => $full . ';',
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];
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}
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unset($GLOBALS['import_run_buffer']);
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return $importRunBuffer;
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}
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/**
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* Looks for the presence of USE to possibly change current db
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*
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* @param string $buffer buffer to examine
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* @param string $db current db
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* @param bool $reload reload
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*
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* @return array (current or new db, whether to reload)
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*/
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public function lookForUse(?string $buffer, ?string $db, ?bool $reload): array
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{
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if (preg_match('@^[\s]*USE[[:space:]]+([\S]+)@i', (string) $buffer, $match)) {
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$db = trim($match[1]);
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$db = trim($db, ';'); // for example, USE abc;
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// $db must not contain the escape characters generated by backquote()
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// ( used in buildSql() as: backquote($db_name), and then called
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// in runQuery() which in turn calls lookForUse() )
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$db = Util::unQuote($db);
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$reload = true;
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}
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return [
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$db,
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$reload,
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];
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}
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/**
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* Returns next part of imported file/buffer
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*
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* @param int $size size of buffer to read (this is maximal size function will return)
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*
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* @return string|bool part of file/buffer
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*/
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public function getNextChunk(?File $importHandle = null, int $size = 32768)
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{
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global $charset_conversion, $charset_of_file, $read_multiply;
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// Add some progression while reading large amount of data
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if ($read_multiply <= 8) {
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$size *= $read_multiply;
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} else {
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$size *= 8;
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}
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$read_multiply++;
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// We can not read too much
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if ($size > $GLOBALS['read_limit']) {
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$size = $GLOBALS['read_limit'];
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}
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if ($this->checkTimeout()) {
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return false;
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}
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if ($GLOBALS['finished']) {
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return true;
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}
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if ($GLOBALS['import_file'] === 'none') {
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// Well this is not yet supported and tested,
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// but should return content of textarea
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if (mb_strlen($GLOBALS['import_text']) < $size) {
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$GLOBALS['finished'] = true;
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return $GLOBALS['import_text'];
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}
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$r = mb_substr($GLOBALS['import_text'], 0, $size);
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$GLOBALS['offset'] += $size;
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$GLOBALS['import_text'] = mb_substr($GLOBALS['import_text'], $size);
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return $r;
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}
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if ($importHandle === null) {
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return false;
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}
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$result = $importHandle->read($size);
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$GLOBALS['finished'] = $importHandle->eof();
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$GLOBALS['offset'] += $size;
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if ($charset_conversion) {
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return Encoding::convertString($charset_of_file, 'utf-8', $result);
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}
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/**
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* Skip possible byte order marks (I do not think we need more
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* charsets, but feel free to add more, you can use wikipedia for
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* reference: <https://en.wikipedia.org/wiki/Byte_Order_Mark>)
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*
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* @todo BOM could be used for charset autodetection
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*/
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if ($GLOBALS['offset'] == $size) {
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$result = $this->skipByteOrderMarksFromContents($result);
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}
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return $result;
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}
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/**
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* Skip possible byte order marks (I do not think we need more
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* charsets, but feel free to add more, you can use wikipedia for
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* reference: <https://en.wikipedia.org/wiki/Byte_Order_Mark>)
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*
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* @param string $contents The contents to strip BOM
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*
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* @todo BOM could be used for charset autodetection
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*/
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public function skipByteOrderMarksFromContents(string $contents): string
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{
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// Do not use mb_ functions they are sensible to mb_internal_encoding()
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// UTF-8
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if (str_starts_with($contents, "\xEF\xBB\xBF")) {
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return substr($contents, 3);
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// UTF-16 BE, LE
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}
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if (str_starts_with($contents, "\xFE\xFF") || str_starts_with($contents, "\xFF\xFE")) {
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return substr($contents, 2);
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}
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return $contents;
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}
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/**
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* Returns the "Excel" column name (i.e. 1 = "A", 26 = "Z", 27 = "AA", etc.)
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*
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* This functions uses recursion to build the Excel column name.
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*
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* The column number (1-26) is converted to the responding
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* ASCII character (A-Z) and returned.
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*
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* If the column number is bigger than 26 (= num of letters in alphabet),
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* an extra character needs to be added. To find this extra character,
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* the number is divided by 26 and this value is passed to another instance
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* of the same function (hence recursion). In that new instance the number is
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* evaluated again, and if it is still bigger than 26, it is divided again
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* and passed to another instance of the same function. This continues until
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* the number is smaller than 26. Then the last called function returns
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* the corresponding ASCII character to the function that called it.
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* Each time a called function ends an extra character is added to the column name.
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* When the first function is reached, the last character is added and the complete
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* column name is returned.
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*
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* @param int $num the column number
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*
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* @return string The column's "Excel" name
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*/
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public function getColumnAlphaName(int $num): string
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{
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$capitalA = 65; // ASCII value for capital "A"
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$colName = '';
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if ($num > 26) {
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$div = (int) ($num / 26);
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$remain = $num % 26;
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// subtract 1 of divided value in case the modulus is 0,
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// this is necessary because A-Z has no 'zero'
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if ($remain == 0) {
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$div--;
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}
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// recursive function call
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$colName = $this->getColumnAlphaName($div);
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// use modulus as new column number
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$num = $remain;
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}
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if ($num == 0) {
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// use 'Z' if column number is 0,
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// this is necessary because A-Z has no 'zero'
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$colName .= mb_chr($capitalA + 26 - 1);
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} else {
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// convert column number to ASCII character
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$colName .= mb_chr($capitalA + $num - 1);
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}
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return $colName;
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}
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/**
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* Returns the column number based on the Excel name.
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* So "A" = 1, "Z" = 26, "AA" = 27, etc.
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*
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* Basically this is a base26 (A-Z) to base10 (0-9) conversion.
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* It iterates through all characters in the column name and
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* calculates the corresponding value, based on character value
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* (A = 1, ..., Z = 26) and position in the string.
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*
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* @param string $name column name(i.e. "A", or "BC", etc.)
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*
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* @return int The column number
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*/
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public function getColumnNumberFromName(string $name): int
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{
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if (empty($name)) {
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return 0;
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}
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$name = mb_strtoupper($name);
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$numChars = mb_strlen($name);
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$columnNumber = 0;
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for ($i = 0; $i < $numChars; ++$i) {
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// read string from back to front
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$charPos = $numChars - 1 - $i;
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// convert capital character to ASCII value
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// and subtract 64 to get corresponding decimal value
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// ASCII value of "A" is 65, "B" is 66, etc.
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// Decimal equivalent of "A" is 1, "B" is 2, etc.
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$number = (int) (mb_ord($name[$charPos]) - 64);
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// base26 to base10 conversion : multiply each number
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// with corresponding value of the position, in this case
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// $i=0 : 1; $i=1 : 26; $i=2 : 676; ...
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$columnNumber += $number * 26 ** $i;
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}
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return (int) $columnNumber;
|
|
}
|
|
|
|
/**
|
|
* Obtains the precision (total # of digits) from a size of type decimal
|
|
*
|
|
* @param string $lastCumulativeSize Size of type decimal
|
|
*
|
|
* @return int Precision of the given decimal size notation
|
|
*/
|
|
public function getDecimalPrecision(string $lastCumulativeSize): int
|
|
{
|
|
return (int) substr(
|
|
$lastCumulativeSize,
|
|
0,
|
|
(int) strpos($lastCumulativeSize, ',')
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Obtains the scale (# of digits to the right of the decimal point)
|
|
* from a size of type decimal
|
|
*
|
|
* @param string $lastCumulativeSize Size of type decimal
|
|
*
|
|
* @return int Scale of the given decimal size notation
|
|
*/
|
|
public function getDecimalScale(string $lastCumulativeSize): int
|
|
{
|
|
return (int) substr(
|
|
$lastCumulativeSize,
|
|
strpos($lastCumulativeSize, ',') + 1,
|
|
strlen($lastCumulativeSize) - strpos($lastCumulativeSize, ',')
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Obtains the decimal size of a given cell
|
|
*
|
|
* @param string $cell cell content
|
|
*
|
|
* @return array Contains the precision, scale, and full size
|
|
* representation of the given decimal cell
|
|
*/
|
|
public function getDecimalSize(string $cell): array
|
|
{
|
|
$currSize = mb_strlen($cell);
|
|
$decPos = mb_strpos($cell, '.');
|
|
$decPrecision = $currSize - 1 - $decPos;
|
|
|
|
$m = $currSize - 1;
|
|
$d = $decPrecision;
|
|
|
|
return [
|
|
$m,
|
|
$d,
|
|
$m . ',' . $d,
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Obtains the size of the given cell
|
|
*
|
|
* @param string|int $lastCumulativeSize Last cumulative column size
|
|
* @param int|null $lastCumulativeType Last cumulative column type (NONE or VARCHAR or DECIMAL or INT or BIGINT)
|
|
* @param int $currentCellType Type of the current cell (NONE or VARCHAR or DECIMAL or INT or BIGINT)
|
|
* @param string $cell The current cell
|
|
*
|
|
* @return string|int Size of the given cell in the type-appropriate format
|
|
*
|
|
* @todo Handle the error cases more elegantly
|
|
*/
|
|
public function detectSize(
|
|
$lastCumulativeSize,
|
|
?int $lastCumulativeType,
|
|
int $currentCellType,
|
|
string $cell
|
|
) {
|
|
$currSize = mb_strlen($cell);
|
|
|
|
/**
|
|
* If the cell is NULL, don't treat it as a varchar
|
|
*/
|
|
if (! strcmp('NULL', $cell)) {
|
|
return $lastCumulativeSize;
|
|
}
|
|
|
|
if ($currentCellType == self::VARCHAR) {
|
|
/**
|
|
* What to do if the current cell is of type VARCHAR
|
|
*/
|
|
/**
|
|
* The last cumulative type was VARCHAR
|
|
*/
|
|
if ($lastCumulativeType == self::VARCHAR) {
|
|
if ($currSize >= $lastCumulativeSize) {
|
|
return $currSize;
|
|
}
|
|
|
|
return $lastCumulativeSize;
|
|
}
|
|
|
|
if ($lastCumulativeType == self::DECIMAL) {
|
|
/**
|
|
* The last cumulative type was DECIMAL
|
|
*/
|
|
$oldM = $this->getDecimalPrecision($lastCumulativeSize);
|
|
|
|
if ($currSize >= $oldM) {
|
|
return $currSize;
|
|
}
|
|
|
|
return $oldM;
|
|
}
|
|
|
|
if ($lastCumulativeType == self::BIGINT || $lastCumulativeType == self::INT) {
|
|
/**
|
|
* The last cumulative type was BIGINT or INT
|
|
*/
|
|
if ($currSize >= $lastCumulativeSize) {
|
|
return $currSize;
|
|
}
|
|
|
|
return $lastCumulativeSize;
|
|
}
|
|
|
|
if (! isset($lastCumulativeType) || $lastCumulativeType == self::NONE) {
|
|
/**
|
|
* This is the first row to be analyzed
|
|
*/
|
|
return $currSize;
|
|
}
|
|
|
|
/**
|
|
* An error has DEFINITELY occurred
|
|
*/
|
|
/**
|
|
* TODO: Handle this MUCH more elegantly
|
|
*/
|
|
|
|
return -1;
|
|
}
|
|
|
|
if ($currentCellType == self::DECIMAL) {
|
|
/**
|
|
* What to do if the current cell is of type DECIMAL
|
|
*/
|
|
/**
|
|
* The last cumulative type was VARCHAR
|
|
*/
|
|
if ($lastCumulativeType == self::VARCHAR) {
|
|
/* Convert $last_cumulative_size from varchar to decimal format */
|
|
$size = $this->getDecimalSize($cell);
|
|
|
|
if ($size[self::M] >= $lastCumulativeSize) {
|
|
return $size[self::M];
|
|
}
|
|
|
|
return $lastCumulativeSize;
|
|
}
|
|
|
|
if ($lastCumulativeType == self::DECIMAL) {
|
|
/**
|
|
* The last cumulative type was DECIMAL
|
|
*/
|
|
$size = $this->getDecimalSize($cell);
|
|
|
|
$oldM = $this->getDecimalPrecision($lastCumulativeSize);
|
|
$oldD = $this->getDecimalScale($lastCumulativeSize);
|
|
|
|
/* New val if M or D is greater than current largest */
|
|
if ($size[self::M] > $oldM || $size[self::D] > $oldD) {
|
|
/* Take the largest of both types */
|
|
return (string) (($size[self::M] > $oldM ? $size[self::M] : $oldM)
|
|
. ',' . ($size[self::D] > $oldD ? $size[self::D] : $oldD));
|
|
}
|
|
|
|
return $lastCumulativeSize;
|
|
}
|
|
|
|
if ($lastCumulativeType == self::BIGINT || $lastCumulativeType == self::INT) {
|
|
/**
|
|
* The last cumulative type was BIGINT or INT
|
|
*/
|
|
/* Convert $last_cumulative_size from int to decimal format */
|
|
$size = $this->getDecimalSize($cell);
|
|
|
|
if ($size[self::M] >= $lastCumulativeSize) {
|
|
return $size[self::FULL];
|
|
}
|
|
|
|
return $lastCumulativeSize . ',' . $size[self::D];
|
|
}
|
|
|
|
if (! isset($lastCumulativeType) || $lastCumulativeType == self::NONE) {
|
|
/**
|
|
* This is the first row to be analyzed
|
|
*/
|
|
/* First row of the column */
|
|
$size = $this->getDecimalSize($cell);
|
|
|
|
return $size[self::FULL];
|
|
}
|
|
|
|
/**
|
|
* An error has DEFINITELY occurred
|
|
*/
|
|
/**
|
|
* TODO: Handle this MUCH more elegantly
|
|
*/
|
|
|
|
return -1;
|
|
}
|
|
|
|
if ($currentCellType == self::BIGINT || $currentCellType == self::INT) {
|
|
/**
|
|
* What to do if the current cell is of type BIGINT or INT
|
|
*/
|
|
/**
|
|
* The last cumulative type was VARCHAR
|
|
*/
|
|
if ($lastCumulativeType == self::VARCHAR) {
|
|
if ($currSize >= $lastCumulativeSize) {
|
|
return $currSize;
|
|
}
|
|
|
|
return $lastCumulativeSize;
|
|
}
|
|
|
|
if ($lastCumulativeType == self::DECIMAL) {
|
|
/**
|
|
* The last cumulative type was DECIMAL
|
|
*/
|
|
$oldM = $this->getDecimalPrecision($lastCumulativeSize);
|
|
$oldD = $this->getDecimalScale($lastCumulativeSize);
|
|
$oldInt = $oldM - $oldD;
|
|
$newInt = mb_strlen((string) $cell);
|
|
|
|
/* See which has the larger integer length */
|
|
if ($oldInt >= $newInt) {
|
|
/* Use old decimal size */
|
|
return $lastCumulativeSize;
|
|
}
|
|
|
|
/* Use $newInt + $oldD as new M */
|
|
return ($newInt + $oldD) . ',' . $oldD;
|
|
}
|
|
|
|
if ($lastCumulativeType == self::BIGINT || $lastCumulativeType == self::INT) {
|
|
/**
|
|
* The last cumulative type was BIGINT or INT
|
|
*/
|
|
if ($currSize >= $lastCumulativeSize) {
|
|
return $currSize;
|
|
}
|
|
|
|
return $lastCumulativeSize;
|
|
}
|
|
|
|
if (! isset($lastCumulativeType) || $lastCumulativeType == self::NONE) {
|
|
/**
|
|
* This is the first row to be analyzed
|
|
*/
|
|
return $currSize;
|
|
}
|
|
|
|
/**
|
|
* An error has DEFINITELY occurred
|
|
*/
|
|
/**
|
|
* TODO: Handle this MUCH more elegantly
|
|
*/
|
|
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* An error has DEFINITELY occurred
|
|
*/
|
|
/**
|
|
* TODO: Handle this MUCH more elegantly
|
|
*/
|
|
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* Determines what MySQL type a cell is
|
|
*
|
|
* @param int $lastCumulativeType Last cumulative column type
|
|
* (VARCHAR or INT or BIGINT or DECIMAL or NONE)
|
|
* @param string|null $cell String representation of the cell for which
|
|
* a best-fit type is to be determined
|
|
*
|
|
* @return int The MySQL type representation
|
|
* (VARCHAR or INT or BIGINT or DECIMAL or NONE)
|
|
*/
|
|
public function detectType(?int $lastCumulativeType, ?string $cell): int
|
|
{
|
|
/**
|
|
* If numeric, determine if decimal, int or bigint
|
|
* Else, we call it varchar for simplicity
|
|
*/
|
|
|
|
if (! strcmp('NULL', (string) $cell)) {
|
|
if ($lastCumulativeType === null || $lastCumulativeType == self::NONE) {
|
|
return self::NONE;
|
|
}
|
|
|
|
return $lastCumulativeType;
|
|
}
|
|
|
|
if (! is_numeric($cell)) {
|
|
return self::VARCHAR;
|
|
}
|
|
|
|
if (
|
|
$cell == (string) (float) $cell
|
|
&& str_contains((string) $cell, '.')
|
|
&& mb_substr_count((string) $cell, '.') === 1
|
|
) {
|
|
return self::DECIMAL;
|
|
}
|
|
|
|
if (abs((int) $cell) > 2147483647) {
|
|
return self::BIGINT;
|
|
}
|
|
|
|
if ($cell !== (string) (int) $cell) {
|
|
return self::VARCHAR;
|
|
}
|
|
|
|
return self::INT;
|
|
}
|
|
|
|
/**
|
|
* Determines if the column types are int, decimal, or string
|
|
*
|
|
* @link https://wiki.phpmyadmin.net/pma/Import
|
|
*
|
|
* @param array $table array(string $table_name, array $col_names, array $rows)
|
|
*
|
|
* @return array|bool array(array $types, array $sizes)
|
|
*
|
|
* @todo Handle the error case more elegantly
|
|
*/
|
|
public function analyzeTable(array &$table)
|
|
{
|
|
/* Get number of rows in table */
|
|
$numRows = count($table[self::ROWS]);
|
|
/* Get number of columns */
|
|
$numCols = count($table[self::COL_NAMES]);
|
|
/* Current type for each column */
|
|
$types = [];
|
|
$sizes = [];
|
|
|
|
/* Initialize $sizes to all 0's */
|
|
for ($i = 0; $i < $numCols; ++$i) {
|
|
$sizes[$i] = 0;
|
|
}
|
|
|
|
/* Initialize $types to NONE */
|
|
for ($i = 0; $i < $numCols; ++$i) {
|
|
$types[$i] = self::NONE;
|
|
}
|
|
|
|
/* If the passed array is not of the correct form, do not process it */
|
|
if (
|
|
is_array($table[self::TBL_NAME])
|
|
|| ! is_array($table[self::COL_NAMES])
|
|
|| ! is_array($table[self::ROWS])
|
|
) {
|
|
/**
|
|
* TODO: Handle this better
|
|
*/
|
|
|
|
return false;
|
|
}
|
|
|
|
/* Analyze each column */
|
|
for ($i = 0; $i < $numCols; ++$i) {
|
|
/* Analyze the column in each row */
|
|
for ($j = 0; $j < $numRows; ++$j) {
|
|
$cellValue = $table[self::ROWS][$j][$i];
|
|
/* Determine type of the current cell */
|
|
$currType = $this->detectType($types[$i], $cellValue === null ? null : (string) $cellValue);
|
|
/* Determine size of the current cell */
|
|
$sizes[$i] = $this->detectSize($sizes[$i], $types[$i], $currType, (string) $cellValue);
|
|
|
|
/**
|
|
* If a type for this column has already been declared,
|
|
* only alter it if it was a number and a varchar was found
|
|
*/
|
|
if ($currType == self::NONE) {
|
|
continue;
|
|
}
|
|
|
|
if ($currType == self::VARCHAR) {
|
|
$types[$i] = self::VARCHAR;
|
|
} elseif ($currType == self::DECIMAL) {
|
|
if ($types[$i] != self::VARCHAR) {
|
|
$types[$i] = self::DECIMAL;
|
|
}
|
|
} elseif ($currType == self::BIGINT) {
|
|
if ($types[$i] != self::VARCHAR && $types[$i] != self::DECIMAL) {
|
|
$types[$i] = self::BIGINT;
|
|
}
|
|
} elseif ($currType == self::INT) {
|
|
if ($types[$i] != self::VARCHAR && $types[$i] != self::DECIMAL && $types[$i] != self::BIGINT) {
|
|
$types[$i] = self::INT;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Check to ensure that all types are valid */
|
|
$len = count($types);
|
|
for ($n = 0; $n < $len; ++$n) {
|
|
if (strcmp((string) self::NONE, (string) $types[$n])) {
|
|
continue;
|
|
}
|
|
|
|
$types[$n] = self::VARCHAR;
|
|
$sizes[$n] = '10';
|
|
}
|
|
|
|
return [
|
|
$types,
|
|
$sizes,
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Builds and executes SQL statements to create the database and tables
|
|
* as necessary, as well as insert all the data.
|
|
*
|
|
* @link https://wiki.phpmyadmin.net/pma/Import
|
|
*
|
|
* @param string $dbName Name of the database
|
|
* @param array $tables Array of tables for the specified database
|
|
* @param array|null $analyses Analyses of the tables
|
|
* @param array|null $additionalSql Additional SQL statements to be executed
|
|
* @param array|null $options Associative array of options
|
|
* @param array $sqlData 2-element array with sql data
|
|
*/
|
|
public function buildSql(
|
|
string $dbName,
|
|
array &$tables,
|
|
?array &$analyses = null,
|
|
?array &$additionalSql = null,
|
|
?array $options = null,
|
|
array &$sqlData = []
|
|
): void {
|
|
global $import_notice, $dbi;
|
|
|
|
/* Needed to quell the beast that is Message */
|
|
$import_notice = null;
|
|
|
|
/* Take care of the options */
|
|
$collation = $options['db_collation'] ?? 'utf8_general_ci';
|
|
$charset = $options['db_charset'] ?? 'utf8';
|
|
$createDb = $options['create_db'] ?? true;
|
|
|
|
/**
|
|
* Create SQL code to handle the database
|
|
*
|
|
* @var array<int,string> $sql
|
|
*/
|
|
$sql = [];
|
|
|
|
if ($createDb) {
|
|
$sql[] = 'CREATE DATABASE IF NOT EXISTS ' . Util::backquote($dbName)
|
|
. ' DEFAULT CHARACTER SET ' . $charset . ' COLLATE ' . $collation
|
|
. ';';
|
|
}
|
|
|
|
/**
|
|
* The calling plug-in should include this statement,
|
|
* if necessary, in the $additional_sql parameter
|
|
*
|
|
* $sql[] = "USE " . backquote($db_name);
|
|
*/
|
|
|
|
/* Execute the SQL statements create above */
|
|
$sqlLength = count($sql);
|
|
for ($i = 0; $i < $sqlLength; ++$i) {
|
|
$this->runQuery($sql[$i], $sql[$i], $sqlData);
|
|
}
|
|
|
|
/* No longer needed */
|
|
unset($sql);
|
|
|
|
/* Run the $additional_sql statements supplied by the caller plug-in */
|
|
if ($additionalSql != null) {
|
|
/* Clean the SQL first */
|
|
$additionalSqlLength = count($additionalSql);
|
|
|
|
/**
|
|
* Only match tables for now, because CREATE IF NOT EXISTS
|
|
* syntax is lacking or nonexisting for views, triggers,
|
|
* functions, and procedures.
|
|
*
|
|
* See: https://bugs.mysql.com/bug.php?id=15287
|
|
*
|
|
* To the best of my knowledge this is still an issue.
|
|
*
|
|
* $pattern = 'CREATE (TABLE|VIEW|TRIGGER|FUNCTION|PROCEDURE)';
|
|
*/
|
|
$pattern = '/CREATE [^`]*(TABLE)/';
|
|
$replacement = 'CREATE \\1 IF NOT EXISTS';
|
|
|
|
/* Change CREATE statements to CREATE IF NOT EXISTS to support
|
|
* inserting into existing structures
|
|
*/
|
|
for ($i = 0; $i < $additionalSqlLength; ++$i) {
|
|
$additionalSql[$i] = preg_replace($pattern, $replacement, $additionalSql[$i]);
|
|
/* Execute the resulting statements */
|
|
$this->runQuery($additionalSql[$i], $additionalSql[$i], $sqlData);
|
|
}
|
|
}
|
|
|
|
if ($analyses != null) {
|
|
$typeArray = [
|
|
self::NONE => 'NULL',
|
|
self::VARCHAR => 'varchar',
|
|
self::INT => 'int',
|
|
self::DECIMAL => 'decimal',
|
|
self::BIGINT => 'bigint',
|
|
self::GEOMETRY => 'geometry',
|
|
];
|
|
|
|
/* TODO: Do more checking here to make sure they really are matched */
|
|
if (count($tables) != count($analyses)) {
|
|
exit;
|
|
}
|
|
|
|
/* Create SQL code to create the tables */
|
|
$numTables = count($tables);
|
|
for ($i = 0; $i < $numTables; ++$i) {
|
|
$numCols = count($tables[$i][self::COL_NAMES]);
|
|
$tempSQLStr = 'CREATE TABLE IF NOT EXISTS '
|
|
. Util::backquote($dbName)
|
|
. '.' . Util::backquote($tables[$i][self::TBL_NAME]) . ' (';
|
|
for ($j = 0; $j < $numCols; ++$j) {
|
|
$size = $analyses[$i][self::SIZES][$j];
|
|
if ((int) $size == 0) {
|
|
$size = 10;
|
|
}
|
|
|
|
$tempSQLStr .= Util::backquote($tables[$i][self::COL_NAMES][$j]) . ' '
|
|
. $typeArray[$analyses[$i][self::TYPES][$j]];
|
|
if ($analyses[$i][self::TYPES][$j] != self::GEOMETRY) {
|
|
$tempSQLStr .= '(' . $size . ')';
|
|
}
|
|
|
|
if ($j == count($tables[$i][self::COL_NAMES]) - 1) {
|
|
continue;
|
|
}
|
|
|
|
$tempSQLStr .= ', ';
|
|
}
|
|
|
|
$tempSQLStr .= ') DEFAULT CHARACTER SET ' . $charset
|
|
. ' COLLATE ' . $collation . ';';
|
|
|
|
/**
|
|
* Each SQL statement is executed immediately
|
|
* after it is formed so that we don't have
|
|
* to store them in a (possibly large) buffer
|
|
*/
|
|
$this->runQuery($tempSQLStr, $tempSQLStr, $sqlData);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Create the SQL statements to insert all the data
|
|
*
|
|
* Only one insert query is formed for each table
|
|
*/
|
|
$tempSQLStr = '';
|
|
$colCount = 0;
|
|
$numTables = count($tables);
|
|
for ($i = 0; $i < $numTables; ++$i) {
|
|
$numCols = count($tables[$i][self::COL_NAMES]);
|
|
$numRows = count($tables[$i][self::ROWS]);
|
|
|
|
$tempSQLStr = 'INSERT INTO ' . Util::backquote($dbName) . '.'
|
|
. Util::backquote($tables[$i][self::TBL_NAME]) . ' (';
|
|
|
|
for ($m = 0; $m < $numCols; ++$m) {
|
|
$tempSQLStr .= Util::backquote($tables[$i][self::COL_NAMES][$m]);
|
|
|
|
if ($m == $numCols - 1) {
|
|
continue;
|
|
}
|
|
|
|
$tempSQLStr .= ', ';
|
|
}
|
|
|
|
$tempSQLStr .= ') VALUES ';
|
|
|
|
for ($j = 0; $j < $numRows; ++$j) {
|
|
$tempSQLStr .= '(';
|
|
|
|
for ($k = 0; $k < $numCols; ++$k) {
|
|
// If fully formatted SQL, no need to enclose
|
|
// with apostrophes, add slashes etc.
|
|
if (
|
|
$analyses != null
|
|
&& isset($analyses[$i][self::FORMATTEDSQL][$colCount])
|
|
&& $analyses[$i][self::FORMATTEDSQL][$colCount] == true
|
|
) {
|
|
$tempSQLStr .= (string) $tables[$i][self::ROWS][$j][$k];
|
|
} else {
|
|
if ($analyses != null) {
|
|
$isVarchar = ($analyses[$i][self::TYPES][$colCount] === self::VARCHAR);
|
|
} else {
|
|
$isVarchar = ! is_numeric($tables[$i][self::ROWS][$j][$k]);
|
|
}
|
|
|
|
/* Don't put quotes around NULL fields */
|
|
if (! strcmp((string) $tables[$i][self::ROWS][$j][$k], 'NULL')) {
|
|
$isVarchar = false;
|
|
}
|
|
|
|
$tempSQLStr .= $isVarchar ? "'" : '';
|
|
$tempSQLStr .= $dbi->escapeString((string) $tables[$i][self::ROWS][$j][$k]);
|
|
$tempSQLStr .= $isVarchar ? "'" : '';
|
|
}
|
|
|
|
if ($k != $numCols - 1) {
|
|
$tempSQLStr .= ', ';
|
|
}
|
|
|
|
if ($colCount == $numCols - 1) {
|
|
$colCount = 0;
|
|
} else {
|
|
$colCount++;
|
|
}
|
|
|
|
/* Delete the cell after we are done with it */
|
|
unset($tables[$i][self::ROWS][$j][$k]);
|
|
}
|
|
|
|
$tempSQLStr .= ')';
|
|
|
|
if ($j != $numRows - 1) {
|
|
$tempSQLStr .= ",\n ";
|
|
}
|
|
|
|
$colCount = 0;
|
|
/* Delete the row after we are done with it */
|
|
unset($tables[$i][self::ROWS][$j]);
|
|
}
|
|
|
|
$tempSQLStr .= ';';
|
|
|
|
/**
|
|
* Each SQL statement is executed immediately
|
|
* after it is formed so that we don't have
|
|
* to store them in a (possibly large) buffer
|
|
*/
|
|
$this->runQuery($tempSQLStr, $tempSQLStr, $sqlData);
|
|
}
|
|
|
|
/* No longer needed */
|
|
unset($tempSQLStr);
|
|
|
|
/**
|
|
* A work in progress
|
|
*/
|
|
|
|
/**
|
|
* Add the viewable structures from $additional_sql
|
|
* to $tables so they are also displayed
|
|
*/
|
|
$viewPattern = '@VIEW `[^`]+`\.`([^`]+)@';
|
|
$tablePattern = '@CREATE TABLE IF NOT EXISTS `([^`]+)`@';
|
|
/* Check a third pattern to make sure its not a "USE `db_name`;" statement */
|
|
|
|
$regs = [];
|
|
|
|
$inTables = false;
|
|
|
|
$additionalSqlLength = $additionalSql === null ? 0 : count($additionalSql);
|
|
for ($i = 0; $i < $additionalSqlLength; ++$i) {
|
|
preg_match($viewPattern, $additionalSql[$i], $regs);
|
|
|
|
if (count($regs) === 0) {
|
|
preg_match($tablePattern, $additionalSql[$i], $regs);
|
|
}
|
|
|
|
if (count($regs)) {
|
|
for ($n = 0; $n < $numTables; ++$n) {
|
|
if (! strcmp($regs[1], $tables[$n][self::TBL_NAME])) {
|
|
$inTables = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (! $inTables) {
|
|
$tables[] = [self::TBL_NAME => $regs[1]];
|
|
}
|
|
}
|
|
|
|
/* Reset the array */
|
|
$regs = [];
|
|
$inTables = false;
|
|
}
|
|
|
|
$params = ['db' => $dbName];
|
|
$dbUrl = Url::getFromRoute('/database/structure', $params);
|
|
$dbOperationsUrl = Url::getFromRoute('/database/operations', $params);
|
|
|
|
$message = '<br><br>';
|
|
$message .= '<strong>' . __(
|
|
'The following structures have either been created or altered. Here you can:'
|
|
) . '</strong><br>';
|
|
$message .= '<ul><li>' . __("View a structure's contents by clicking on its name.") . '</li>';
|
|
$message .= '<li>' . __('Change any of its settings by clicking the corresponding "Options" link.') . '</li>';
|
|
$message .= '<li>' . __('Edit structure by following the "Structure" link.')
|
|
. '</li>';
|
|
$message .= sprintf(
|
|
'<br><li><a href="%s" title="%s">%s</a> (<a href="%s" title="%s">'
|
|
. __('Options') . '</a>)</li>',
|
|
$dbUrl,
|
|
sprintf(
|
|
__('Go to database: %s'),
|
|
htmlspecialchars(Util::backquote($dbName))
|
|
),
|
|
htmlspecialchars($dbName),
|
|
$dbOperationsUrl,
|
|
sprintf(
|
|
__('Edit settings for %s'),
|
|
htmlspecialchars(Util::backquote($dbName))
|
|
)
|
|
);
|
|
|
|
$message .= '<ul>';
|
|
|
|
unset($params);
|
|
|
|
foreach ($tables as $table) {
|
|
$params = [
|
|
'db' => $dbName,
|
|
'table' => (string) $table[self::TBL_NAME],
|
|
];
|
|
$tblUrl = Url::getFromRoute('/sql', $params);
|
|
$tblStructUrl = Url::getFromRoute('/table/structure', $params);
|
|
$tblOpsUrl = Url::getFromRoute('/table/operations', $params);
|
|
|
|
unset($params);
|
|
|
|
$tableObj = new Table($table[self::TBL_NAME], $dbName);
|
|
if (! $tableObj->isView()) {
|
|
$message .= sprintf(
|
|
'<li><a href="%s" title="%s">%s</a> (<a href="%s" title="%s">' . __(
|
|
'Structure'
|
|
) . '</a>) (<a href="%s" title="%s">' . __('Options') . '</a>)</li>',
|
|
$tblUrl,
|
|
sprintf(
|
|
__('Go to table: %s'),
|
|
htmlspecialchars(
|
|
Util::backquote($table[self::TBL_NAME])
|
|
)
|
|
),
|
|
htmlspecialchars($table[self::TBL_NAME]),
|
|
$tblStructUrl,
|
|
sprintf(
|
|
__('Structure of %s'),
|
|
htmlspecialchars(
|
|
Util::backquote($table[self::TBL_NAME])
|
|
)
|
|
),
|
|
$tblOpsUrl,
|
|
sprintf(
|
|
__('Edit settings for %s'),
|
|
htmlspecialchars(
|
|
Util::backquote($table[self::TBL_NAME])
|
|
)
|
|
)
|
|
);
|
|
} else {
|
|
$message .= sprintf(
|
|
'<li><a href="%s" title="%s">%s</a></li>',
|
|
$tblUrl,
|
|
sprintf(
|
|
__('Go to view: %s'),
|
|
htmlspecialchars(
|
|
Util::backquote($table[self::TBL_NAME])
|
|
)
|
|
),
|
|
htmlspecialchars($table[self::TBL_NAME])
|
|
);
|
|
}
|
|
}
|
|
|
|
$message .= '</ul></ul>';
|
|
|
|
$import_notice = $message;
|
|
}
|
|
|
|
/**
|
|
* Handles request for ROLLBACK.
|
|
*
|
|
* @param string $sqlQuery SQL query(s)
|
|
*/
|
|
public function handleRollbackRequest(string $sqlQuery): void
|
|
{
|
|
global $dbi;
|
|
|
|
$sqlDelimiter = $_POST['sql_delimiter'];
|
|
$queries = explode($sqlDelimiter, $sqlQuery);
|
|
$error = false;
|
|
$errorMsg = __(
|
|
'Only INSERT, UPDATE, DELETE and REPLACE '
|
|
. 'SQL queries containing transactional engine tables can be rolled back.'
|
|
);
|
|
foreach ($queries as $sqlQuery) {
|
|
if (empty($sqlQuery)) {
|
|
continue;
|
|
}
|
|
|
|
// Check each query for ROLLBACK support.
|
|
if ($this->checkIfRollbackPossible($sqlQuery)) {
|
|
continue;
|
|
}
|
|
|
|
$globalError = $dbi->getError();
|
|
if ($globalError) {
|
|
$error = $globalError;
|
|
} else {
|
|
$error = $errorMsg;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if ($error) {
|
|
unset($_POST['rollback_query']);
|
|
$response = ResponseRenderer::getInstance();
|
|
$message = Message::rawError($error);
|
|
$response->addJSON('message', $message);
|
|
exit;
|
|
}
|
|
|
|
// If everything fine, START a transaction.
|
|
$dbi->query('START TRANSACTION');
|
|
}
|
|
|
|
/**
|
|
* Checks if ROLLBACK is possible for a SQL query or not.
|
|
*
|
|
* @param string $sqlQuery SQL query
|
|
*/
|
|
public function checkIfRollbackPossible(string $sqlQuery): bool
|
|
{
|
|
$parser = new Parser($sqlQuery);
|
|
|
|
if (empty($parser->statements[0])) {
|
|
return true;
|
|
}
|
|
|
|
$statement = $parser->statements[0];
|
|
|
|
// Check if query is supported.
|
|
if (
|
|
! (($statement instanceof InsertStatement)
|
|
|| ($statement instanceof UpdateStatement)
|
|
|| ($statement instanceof DeleteStatement)
|
|
|| ($statement instanceof ReplaceStatement))
|
|
) {
|
|
return false;
|
|
}
|
|
|
|
// Get table_references from the query.
|
|
$tables = Query::getTables($statement);
|
|
|
|
// Check if each table is 'InnoDB'.
|
|
foreach ($tables as $table) {
|
|
if (! $this->isTableTransactional($table)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Checks if a table is 'InnoDB' or not.
|
|
*
|
|
* @param string $table Table details
|
|
*/
|
|
public function isTableTransactional(string $table): bool
|
|
{
|
|
global $dbi;
|
|
|
|
$table = explode('.', $table);
|
|
if (count($table) === 2) {
|
|
$db = Util::unQuote($table[0]);
|
|
$table = Util::unQuote($table[1]);
|
|
} else {
|
|
$db = $GLOBALS['db'];
|
|
$table = Util::unQuote($table[0]);
|
|
}
|
|
|
|
// Query to check if table exists.
|
|
$checkTableQuery = 'SELECT * FROM ' . Util::backquote($db)
|
|
. '.' . Util::backquote($table) . ' '
|
|
. 'LIMIT 1';
|
|
|
|
$result = $dbi->tryQuery($checkTableQuery);
|
|
|
|
if (! $result) {
|
|
return false;
|
|
}
|
|
|
|
// List of Transactional Engines.
|
|
$transactionalEngines = [
|
|
'INNODB',
|
|
'FALCON',
|
|
'NDB',
|
|
'INFINIDB',
|
|
'TOKUDB',
|
|
'XTRADB',
|
|
'SEQUENCE',
|
|
'BDB',
|
|
];
|
|
|
|
// Query to check if table is 'Transactional'.
|
|
$checkQuery = 'SELECT `ENGINE` FROM `information_schema`.`tables` '
|
|
. 'WHERE `table_name` = "' . $dbi->escapeString($table) . '" '
|
|
. 'AND `table_schema` = "' . $dbi->escapeString($db) . '" '
|
|
. 'AND UPPER(`engine`) IN ("'
|
|
. implode('", "', $transactionalEngines)
|
|
. '")';
|
|
|
|
$result = $dbi->tryQuery($checkQuery);
|
|
|
|
return $result && $result->numRows() == 1;
|
|
}
|
|
|
|
/** @return string[] */
|
|
public static function getCompressions(): array
|
|
{
|
|
global $cfg;
|
|
|
|
$compressions = [];
|
|
|
|
if ($cfg['GZipDump'] && function_exists('gzopen')) {
|
|
$compressions[] = 'gzip';
|
|
}
|
|
|
|
if ($cfg['BZipDump'] && function_exists('bzopen')) {
|
|
$compressions[] = 'bzip2';
|
|
}
|
|
|
|
if ($cfg['ZipDump'] && function_exists('zip_open')) {
|
|
$compressions[] = 'zip';
|
|
}
|
|
|
|
return $compressions;
|
|
}
|
|
|
|
/**
|
|
* @param array $importList List of plugin instances.
|
|
*
|
|
* @return false|string
|
|
*/
|
|
public static function getLocalFiles(array $importList)
|
|
{
|
|
$fileListing = new FileListing();
|
|
|
|
$extensions = '';
|
|
foreach ($importList as $importPlugin) {
|
|
if (! empty($extensions)) {
|
|
$extensions .= '|';
|
|
}
|
|
|
|
$extensions .= $importPlugin->getProperties()->getExtension();
|
|
}
|
|
|
|
$matcher = '@\.(' . $extensions . ')(\.(' . $fileListing->supportedDecompressions() . '))?$@';
|
|
|
|
$active = isset($GLOBALS['timeout_passed'], $GLOBALS['local_import_file']) && $GLOBALS['timeout_passed']
|
|
? $GLOBALS['local_import_file']
|
|
: '';
|
|
|
|
return $fileListing->getFileSelectOptions(
|
|
Util::userDir((string) ($GLOBALS['cfg']['UploadDir'] ?? '')),
|
|
$matcher,
|
|
$active
|
|
);
|
|
}
|
|
}
|