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3151 changed files with 566766 additions and 48 deletions
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<?php
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declare(strict_types=1);
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namespace PhpMyAdmin\Controllers\Table;
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use PhpMyAdmin\DatabaseInterface;
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use PhpMyAdmin\DbTableExists;
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use PhpMyAdmin\Html\Generator;
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use PhpMyAdmin\Response;
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use PhpMyAdmin\Template;
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use PhpMyAdmin\Url;
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use PhpMyAdmin\Util;
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use function array_key_exists;
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use function count;
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use function is_array;
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use function mb_strtolower;
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use function preg_match;
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use function preg_replace;
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use function str_ireplace;
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use function str_replace;
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use function strncasecmp;
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use function strpos;
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/**
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* Handles find and replace tab.
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*
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* Displays find and replace form, allows previewing and do the replacing.
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*/
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class FindReplaceController extends AbstractController
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{
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/** @var array */
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private $columnNames;
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/** @var array */
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private $columnTypes;
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/** @var string */
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private $connectionCharSet;
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/** @var DatabaseInterface */
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private $dbi;
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/**
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* @param Response $response
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* @param string $db Database name
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* @param string $table Table name
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* @param DatabaseInterface $dbi
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*/
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public function __construct($response, Template $template, $db, $table, $dbi)
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{
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parent::__construct($response, $template, $db, $table);
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$this->dbi = $dbi;
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$this->columnNames = [];
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$this->columnTypes = [];
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$this->loadTableInfo();
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$this->connectionCharSet = $this->dbi->fetchValue(
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'SELECT @@character_set_connection'
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);
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}
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public function index(): void
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{
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global $db, $table, $url_params, $cfg, $err_url;
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Util::checkParameters(['db', 'table']);
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$url_params = ['db' => $db, 'table' => $table];
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$err_url = Util::getScriptNameForOption($cfg['DefaultTabTable'], 'table');
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$err_url .= Url::getCommon($url_params, '&');
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DbTableExists::check();
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if (isset($_POST['find'])) {
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$this->findAction();
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return;
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}
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$this->addScriptFiles(['table/find_replace.js']);
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if (isset($_POST['replace'])) {
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$this->replaceAction();
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}
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// Displays the find and replace form
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$this->displaySelectionFormAction();
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}
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/**
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* Gets all the columns of a table along with their types.
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*/
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private function loadTableInfo(): void
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{
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// Gets the list and number of columns
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$columns = $this->dbi->getColumns(
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$this->db,
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$this->table,
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null,
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true
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);
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foreach ($columns as $row) {
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// set column name
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$this->columnNames[] = $row['Field'];
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$type = (string) $row['Type'];
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// reformat mysql query output
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if (strncasecmp($type, 'set', 3) == 0
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|| strncasecmp($type, 'enum', 4) == 0
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) {
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$type = str_replace(',', ', ', $type);
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} else {
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// strip the "BINARY" attribute, except if we find "BINARY(" because
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// this would be a BINARY or VARBINARY column type
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if (! preg_match('@BINARY[\(]@i', $type)) {
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$type = str_ireplace('BINARY', '', $type);
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}
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$type = str_ireplace('ZEROFILL', '', $type);
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$type = str_ireplace('UNSIGNED', '', $type);
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$type = mb_strtolower($type);
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}
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if (empty($type)) {
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$type = ' ';
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}
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$this->columnTypes[] = $type;
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}
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}
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/**
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* Display selection form action
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*/
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public function displaySelectionFormAction(): void
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{
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global $goto;
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if (! isset($goto)) {
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$goto = Util::getScriptNameForOption(
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$GLOBALS['cfg']['DefaultTabTable'],
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'table'
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);
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}
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$column_names = $this->columnNames;
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$column_types = $this->columnTypes;
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$types = [];
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$num_cols = count($column_names);
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for ($i = 0; $i < $num_cols; $i++) {
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$types[$column_names[$i]] = preg_replace(
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'@\\(.*@s',
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'',
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$column_types[$i]
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);
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}
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$this->render('table/find_replace/index', [
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'db' => $this->db,
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'table' => $this->table,
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'goto' => $goto,
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'column_names' => $column_names,
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'types' => $types,
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'sql_types' => $this->dbi->types,
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]);
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}
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public function findAction(): void
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{
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$useRegex = array_key_exists('useRegex', $_POST)
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&& $_POST['useRegex'] === 'on';
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$preview = $this->getReplacePreview(
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$_POST['columnIndex'],
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$_POST['find'],
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$_POST['replaceWith'],
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$useRegex,
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$this->connectionCharSet
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);
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$this->response->addJSON('preview', $preview);
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}
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public function replaceAction(): void
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{
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$this->replace(
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$_POST['columnIndex'],
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$_POST['findString'],
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$_POST['replaceWith'],
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$_POST['useRegex'],
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$this->connectionCharSet
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);
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$this->response->addHTML(
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Generator::getMessage(
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__('Your SQL query has been executed successfully.'),
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null,
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'success'
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)
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);
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}
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/**
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* Returns HTML for previewing strings found and their replacements
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*
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* @param int $columnIndex index of the column
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* @param string $find string to find in the column
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* @param string $replaceWith string to replace with
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* @param bool $useRegex to use Regex replace or not
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* @param string $charSet character set of the connection
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*
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* @return string HTML for previewing strings found and their replacements
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*/
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public function getReplacePreview(
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$columnIndex,
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$find,
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$replaceWith,
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$useRegex,
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$charSet
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) {
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$column = $this->columnNames[$columnIndex];
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if ($useRegex) {
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$result = $this->getRegexReplaceRows(
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$columnIndex,
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$find,
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$replaceWith,
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$charSet
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);
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} else {
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$sql_query = 'SELECT '
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. Util::backquote($column) . ','
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. ' REPLACE('
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. Util::backquote($column) . ", '" . $find . "', '"
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. $replaceWith
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. "'),"
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. ' COUNT(*)'
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. ' FROM ' . Util::backquote($this->db)
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. '.' . Util::backquote($this->table)
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. ' WHERE ' . Util::backquote($column)
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. " LIKE '%" . $find . "%' COLLATE " . $charSet . '_bin'; // here we
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// change the collation of the 2nd operand to a case sensitive
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// binary collation to make sure that the comparison
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// is case sensitive
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$sql_query .= ' GROUP BY ' . Util::backquote($column)
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. ' ORDER BY ' . Util::backquote($column) . ' ASC';
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$result = $this->dbi->fetchResult($sql_query, 0);
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}
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return $this->template->render('table/find_replace/replace_preview', [
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'db' => $this->db,
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'table' => $this->table,
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'column_index' => $columnIndex,
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'find' => $find,
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'replace_with' => $replaceWith,
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'use_regex' => $useRegex,
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'result' => $result,
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]);
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}
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/**
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* Finds and returns Regex pattern and their replacements
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*
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* @param int $columnIndex index of the column
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* @param string $find string to find in the column
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* @param string $replaceWith string to replace with
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* @param string $charSet character set of the connection
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*
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* @return array|bool Array containing original values, replaced values and count
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*/
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private function getRegexReplaceRows(
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$columnIndex,
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$find,
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$replaceWith,
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$charSet
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) {
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$column = $this->columnNames[$columnIndex];
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$sql_query = 'SELECT '
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. Util::backquote($column) . ','
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. ' 1,' // to add an extra column that will have replaced value
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. ' COUNT(*)'
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. ' FROM ' . Util::backquote($this->db)
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. '.' . Util::backquote($this->table)
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. ' WHERE ' . Util::backquote($column)
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. " RLIKE '" . $this->dbi->escapeString($find) . "' COLLATE "
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. $charSet . '_bin'; // here we
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// change the collation of the 2nd operand to a case sensitive
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// binary collation to make sure that the comparison is case sensitive
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$sql_query .= ' GROUP BY ' . Util::backquote($column)
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. ' ORDER BY ' . Util::backquote($column) . ' ASC';
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$result = $this->dbi->fetchResult($sql_query, 0);
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if (is_array($result)) {
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/* Iterate over possible delimiters to get one */
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$delimiters = [
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'/',
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'@',
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'#',
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'~',
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'!',
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'$',
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'%',
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'^',
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'&',
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'_',
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];
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$found = false;
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for ($i = 0, $l = count($delimiters); $i < $l; $i++) {
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if (strpos($find, $delimiters[$i]) === false) {
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$found = true;
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break;
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}
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}
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if (! $found) {
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return false;
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}
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$find = $delimiters[$i] . $find . $delimiters[$i];
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foreach ($result as $index => $row) {
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$result[$index][1] = preg_replace(
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$find,
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$replaceWith,
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$row[0]
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);
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}
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}
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return $result;
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}
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/**
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* Replaces a given string in a column with a give replacement
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*
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* @param int $columnIndex index of the column
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* @param string $find string to find in the column
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* @param string $replaceWith string to replace with
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* @param bool $useRegex to use Regex replace or not
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* @param string $charSet character set of the connection
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*
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* @return void
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*/
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public function replace(
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$columnIndex,
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$find,
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$replaceWith,
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$useRegex,
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$charSet
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) {
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$column = $this->columnNames[$columnIndex];
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if ($useRegex) {
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$toReplace = $this->getRegexReplaceRows(
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$columnIndex,
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$find,
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$replaceWith,
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$charSet
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);
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$sql_query = 'UPDATE ' . Util::backquote($this->table)
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. ' SET ' . Util::backquote($column) . ' = CASE';
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if (is_array($toReplace)) {
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foreach ($toReplace as $row) {
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$sql_query .= "\n WHEN " . Util::backquote($column)
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. " = '" . $this->dbi->escapeString($row[0])
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. "' THEN '" . $this->dbi->escapeString($row[1]) . "'";
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}
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}
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$sql_query .= ' END'
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. ' WHERE ' . Util::backquote($column)
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. " RLIKE '" . $this->dbi->escapeString($find) . "' COLLATE "
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. $charSet . '_bin'; // here we
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// change the collation of the 2nd operand to a case sensitive
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// binary collation to make sure that the comparison
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// is case sensitive
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} else {
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$sql_query = 'UPDATE ' . Util::backquote($this->table)
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. ' SET ' . Util::backquote($column) . ' ='
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. ' REPLACE('
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. Util::backquote($column) . ", '" . $find . "', '"
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. $replaceWith
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. "')"
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. ' WHERE ' . Util::backquote($column)
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. " LIKE '%" . $find . "%' COLLATE " . $charSet . '_bin'; // here we
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// change the collation of the 2nd operand to a case sensitive
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// binary collation to make sure that the comparison
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// is case sensitive
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}
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$this->dbi->query(
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$sql_query,
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DatabaseInterface::CONNECT_USER,
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DatabaseInterface::QUERY_STORE
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);
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$GLOBALS['sql_query'] = $sql_query;
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}
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}
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