Update website

admin/phpMyAdmin/libraries/classes/FileListing.php

@@ -0,0 +1,126 @@
+<?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;
+    }
+}