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<?php
declare(strict_types=1);
namespace PhpMyAdmin;
use function asort;
use function closedir;
use function file_exists;
use function function_exists;
use function is_file;
use function is_link;
use function opendir;
use function preg_match;
use function readdir;
use function substr;
/**
* Functions for listing directories
*/
class FileListing
{
/**
* Returns array of filtered file names
*
* @param string $dir directory to list
* @param string $expression regular expression to match files
*
* @return array|bool sorted file list on success, false on failure
*/
public function getDirContent(string $dir, string $expression = '')
{
if (! @file_exists($dir)) {
return false;
}
$handle = @opendir($dir);
if ($handle === false) {
return false;
}
$result = [];
if (substr($dir, -1) !== '/') {
$dir .= '/';
}
while ($file = @readdir($handle)) {
if (
! @is_file($dir . $file)
|| @is_link($dir . $file)
|| ($expression != '' && ! preg_match($expression, $file))
) {
continue;
}
$result[] = $file;
}
closedir($handle);
asort($result);
return $result;
}
/**
* Returns options of filtered file names
*
* @param string $dir directory to list
* @param string $extensions regular expression to match files
* @param string $active currently active choice
*
* @return string|false Html <option> field, false if not files in dir
*/
public function getFileSelectOptions(
string $dir,
string $extensions = '',
string $active = ''
) {
$list = $this->getDirContent($dir, $extensions);
if ($list === false) {
return false;
}
$template = new Template();
return $template->render('file_select_options', [
'filesList' => $list,
'active' => $active,
]);
}
/**
* Get currently supported decompressions.
*
* @return string separated list of extensions usable in getDirContent
*/
public function supportedDecompressions(): string
{
global $cfg;
$compressions = '';
if ($cfg['GZipDump'] && function_exists('gzopen')) {
$compressions = 'gz';
}
if ($cfg['BZipDump'] && function_exists('bzopen')) {
if (! empty($compressions)) {
$compressions .= '|';
}
$compressions .= 'bz2';
}
if ($cfg['ZipDump'] && function_exists('gzinflate')) {
if (! empty($compressions)) {
$compressions .= '|';
}
$compressions .= 'zip';
}
return $compressions;
}
}
|
