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Editing: ExportMediawiki.php

<?php
/**
 * Set of functions used to build MediaWiki dumps of tables
 */

declare(strict_types=1);

namespace PhpMyAdmin\Plugins\Export;

use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Plugins\ExportPlugin;
use PhpMyAdmin\Properties\Options\Groups\OptionsPropertyMainGroup;
use PhpMyAdmin\Properties\Options\Groups\OptionsPropertyRootGroup;
use PhpMyAdmin\Properties\Options\Groups\OptionsPropertySubgroup;
use PhpMyAdmin\Properties\Options\Items\BoolPropertyItem;
use PhpMyAdmin\Properties\Options\Items\RadioPropertyItem;
use PhpMyAdmin\Properties\Plugins\ExportPluginProperties;
use PhpMyAdmin\Util;

use function __;
use function array_values;
use function count;
use function htmlspecialchars;
use function str_repeat;

/**
 * Handles the export for the MediaWiki class
 */
class ExportMediawiki extends ExportPlugin
{
    /**
     * @psalm-return non-empty-lowercase-string
     */
    public function getName(): string
    {
        return 'mediawiki';
    }

protected function setProperties(): ExportPluginProperties
    {
        $exportPluginProperties = new ExportPluginProperties();
        $exportPluginProperties->setText('MediaWiki Table');
        $exportPluginProperties->setExtension('mediawiki');
        $exportPluginProperties->setMimeType('text/plain');
        $exportPluginProperties->setOptionsText(__('Options'));

// create the root group that will be the options field for
        // $exportPluginProperties
        // this will be shown as "Format specific options"
        $exportSpecificOptions = new OptionsPropertyRootGroup('Format Specific Options');

// general options main group
        $generalOptions = new OptionsPropertyMainGroup(
            'general_opts',
            __('Dump table')
        );

// what to dump (structure/data/both)
        $subgroup = new OptionsPropertySubgroup(
            'dump_table',
            __('Dump table')
        );
        $leaf = new RadioPropertyItem('structure_or_data');
        $leaf->setValues(
            [
                'structure' => __('structure'),
                'data' => __('data'),
                'structure_and_data' => __('structure and data'),
            ]
        );
        $subgroup->setSubgroupHeader($leaf);
        $generalOptions->addProperty($subgroup);

// export table name
        $leaf = new BoolPropertyItem(
            'caption',
            __('Export table names')
        );
        $generalOptions->addProperty($leaf);

// export table headers
        $leaf = new BoolPropertyItem(
            'headers',
            __('Export table headers')
        );
        $generalOptions->addProperty($leaf);
        //add the main group to the root group
        $exportSpecificOptions->addProperty($generalOptions);

// set the options for the export plugin property item
        $exportPluginProperties->setOptions($exportSpecificOptions);

return $exportPluginProperties;
    }

/**
     * Outputs export header
     */
    public function exportHeader(): bool
    {
        return true;
    }

/**
     * Outputs export footer
     */
    public function exportFooter(): bool
    {
        return true;
    }

/**
     * Outputs database header
     *
     * @param string $db      Database name
     * @param string $dbAlias Alias of db
     */
    public function exportDBHeader($db, $dbAlias = ''): bool
    {
        return true;
    }

/**
     * Outputs database footer
     *
     * @param string $db Database name
     */
    public function exportDBFooter($db): bool
    {
        return true;
    }

/**
     * Outputs CREATE DATABASE statement
     *
     * @param string $db         Database name
     * @param string $exportType 'server', 'database', 'table'
     * @param string $dbAlias    Aliases of db
     */
    public function exportDBCreate($db, $exportType, $dbAlias = ''): bool
    {
        return true;
    }

/**
     * Outputs table's structure
     *
     * @param string $db          database name
     * @param string $table       table name
     * @param string $crlf        the end of line sequence
     * @param string $errorUrl    the url to go back in case of error
     * @param string $exportMode  'create_table','triggers','create_view',
     *                             'stand_in'
     * @param string $exportType  'server', 'database', 'table'
     * @param bool   $do_relation whether to include relation comments
     * @param bool   $do_comments whether to include the pmadb-style column
     *                            comments as comments in the structure; this is
     *                            deprecated but the parameter is left here
     *                            because /export calls exportStructure()
     *                            also for other export types which use this
     *                            parameter
     * @param bool   $do_mime     whether to include mime comments
     * @param bool   $dates       whether to include creation/update/check dates
     * @param array  $aliases     Aliases of db/table/columns
     */
    public function exportStructure(
        $db,
        $table,
        $crlf,
        $errorUrl,
        $exportMode,
        $exportType,
        $do_relation = false,
        $do_comments = false,
        $do_mime = false,
        $dates = false,
        array $aliases = []
    ): bool {
        global $dbi;

$db_alias = $db;
        $table_alias = $table;
        $this->initAlias($aliases, $db_alias, $table_alias);

$output = '';
        switch ($exportMode) {
            case 'create_table':
                $columns = $dbi->getColumns($db, $table);
                $columns = array_values($columns);
                $row_cnt = count($columns);

// Print structure comment
                $output = $this->exportComment(
                    'Table structure for '
                    . Util::backquote($table_alias)
                );

// Begin the table construction
                $output .= '{| class="wikitable" style="text-align:center;"'
                    . $this->exportCRLF();

// Add the table name
                if (isset($GLOBALS['mediawiki_caption'])) {
                    $output .= "|+'''" . $table_alias . "'''" . $this->exportCRLF();
                }

// Add the table headers
                if (isset($GLOBALS['mediawiki_headers'])) {
                    $output .= '|- style="background:#ffdead;"' . $this->exportCRLF();
                    $output .= '! style="background:#ffffff" | '
                    . $this->exportCRLF();
                    for ($i = 0; $i < $row_cnt; ++$i) {
                        $col_as = $columns[$i]['Field'];
                        if (! empty($aliases[$db]['tables'][$table]['columns'][$col_as])) {
                            $col_as = $aliases[$db]['tables'][$table]['columns'][$col_as];
                        }

$output .= ' | ' . $col_as . $this->exportCRLF();
                    }
                }

// Add the table structure
                $output .= '|-' . $this->exportCRLF();
                $output .= '! Type' . $this->exportCRLF();
                for ($i = 0; $i < $row_cnt; ++$i) {
                    $output .= ' | ' . $columns[$i]['Type'] . $this->exportCRLF();
                }

$output .= '|-' . $this->exportCRLF();
                $output .= '! Null' . $this->exportCRLF();
                for ($i = 0; $i < $row_cnt; ++$i) {
                    $output .= ' | ' . $columns[$i]['Null'] . $this->exportCRLF();
                }

$output .= '|-' . $this->exportCRLF();
                $output .= '! Default' . $this->exportCRLF();
                for ($i = 0; $i < $row_cnt; ++$i) {
                    $output .= ' | ' . $columns[$i]['Default'] . $this->exportCRLF();
                }

$output .= '|-' . $this->exportCRLF();
                $output .= '! Extra' . $this->exportCRLF();
                for ($i = 0; $i < $row_cnt; ++$i) {
                    $output .= ' | ' . $columns[$i]['Extra'] . $this->exportCRLF();
                }

$output .= '|}' . str_repeat($this->exportCRLF(), 2);
                break;
        }

return $this->export->outputHandler($output);
    }

/**
     * Outputs the content of a table in MediaWiki format
     *
     * @param string $db       database name
     * @param string $table    table name
     * @param string $crlf     the end of line sequence
     * @param string $errorUrl the url to go back in case of error
     * @param string $sqlQuery SQL query for obtaining data
     * @param array  $aliases  Aliases of db/table/columns
     */
    public function exportData(
        $db,
        $table,
        $crlf,
        $errorUrl,
        $sqlQuery,
        array $aliases = []
    ): bool {
        global $dbi;

$db_alias = $db;
        $table_alias = $table;
        $this->initAlias($aliases, $db_alias, $table_alias);

// Print data comment
        $output = $this->exportComment(
            $table_alias != ''
                ? 'Table data for ' . Util::backquote($table_alias)
                : 'Query results'
        );

// Begin the table construction
        // Use the "wikitable" class for style
        // Use the "sortable"  class for allowing tables to be sorted by column
        $output .= '{| class="wikitable sortable" style="text-align:center;"'
            . $this->exportCRLF();

// Add the table name
        if (isset($GLOBALS['mediawiki_caption'])) {
            $output .= "|+'''" . $table_alias . "'''" . $this->exportCRLF();
        }

// Add the table headers
        if (isset($GLOBALS['mediawiki_headers'])) {
            // Get column names
            $column_names = $dbi->getColumnNames($db, $table);

// Add column names as table headers
            if ($column_names !== []) {
                // Use '|-' for separating rows
                $output .= '|-' . $this->exportCRLF();

// Use '!' for separating table headers
                foreach ($column_names as $column) {
                    if (! empty($aliases[$db]['tables'][$table]['columns'][$column])) {
                        $column = $aliases[$db]['tables'][$table]['columns'][$column];
                    }

$output .= ' ! ' . $column . '' . $this->exportCRLF();
                }
            }
        }

// Get the table data from the database
        $result = $dbi->query($sqlQuery, DatabaseInterface::CONNECT_USER, DatabaseInterface::QUERY_UNBUFFERED);
        $fields_cnt = $result->numFields();

while ($row = $result->fetchRow()) {
            $output .= '|-' . $this->exportCRLF();

// Use '|' for separating table columns
            for ($i = 0; $i < $fields_cnt; ++$i) {
                $output .= ' | ' . $row[$i] . '' . $this->exportCRLF();
            }
        }

// End table construction
        $output .= '|}' . str_repeat($this->exportCRLF(), 2);

return $this->export->outputHandler($output);
    }

/**
     * Outputs result raw query in MediaWiki format
     *
     * @param string      $errorUrl the url to go back in case of error
     * @param string|null $db       the database where the query is executed
     * @param string      $sqlQuery the rawquery to output
     * @param string      $crlf     the end of line sequence
     */
    public function exportRawQuery(string $errorUrl, ?string $db, string $sqlQuery, string $crlf): bool
    {
        global $dbi;

if ($db !== null) {
            $dbi->selectDb($db);
        }

return $this->exportData($db ?? '', '', $crlf, $errorUrl, $sqlQuery);
    }

/**
     * Outputs comments containing info about the exported tables
     *
     * @param string $text Text of comment
     *
     * @return string The formatted comment
     */
    private function exportComment($text = '')
    {
        // see https://www.mediawiki.org/wiki/Help:Formatting
        $comment = $this->exportCRLF();
        $comment .= '' . str_repeat($this->exportCRLF(), 2);

return $comment;
    }

/**
     * Outputs CRLF
     *
     * @return string CRLF
     */
    private function exportCRLF()
    {
        // The CRLF expected by the mediawiki format is "\n"
        return "\n";
    }
}

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