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<?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 .= '<!--' . $this->exportCRLF();
$comment .= htmlspecialchars($text) . $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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