diff --git a/include/webdav_warmup_settings.inc.php b/include/webdav_warmup_settings.inc.php
new file mode 100644
index 0000000..aacb986
--- /dev/null
+++ b/include/webdav_warmup_settings.inc.php
@@ -0,0 +1,79 @@
+<?php
+if (!defined('PHPWG_ROOT_PATH'))
+{
+  die('Hacking attempt!');
+}
+
+function bratonien_tools_webdav_warmup_settings_file()
+{
+  return PHPWG_ROOT_PATH.PWG_LOCAL_DIR.'bratonien-webdav-warmup.settings.json';
+}
+
+function bratonien_tools_get_webdav_warmup_settings()
+{
+  $settings = array(
+    'enabled'=>true,
+    'batch_size'=>10,
+    'periodic_hours'=>12,
+    'piwigo_base_url'=>'http://127.0.0.1',
+  );
+
+  $file = bratonien_tools_webdav_warmup_settings_file();
+  if (is_file($file) && is_readable($file))
+  {
+    $raw = @file_get_contents($file);
+    $saved = $raw !== false ? json_decode($raw, true) : null;
+    if (is_array($saved))
+    {
+      if (array_key_exists('enabled', $saved)) $settings['enabled'] = (bool)$saved['enabled'];
+      if (isset($saved['batch_size'])) $settings['batch_size'] = max(1, min(50, (int)$saved['batch_size']));
+      if (isset($saved['periodic_hours'])) $settings['periodic_hours'] = max(1, min(168, (int)$saved['periodic_hours']));
+      if (!empty($saved['piwigo_base_url'])) $settings['piwigo_base_url'] = rtrim((string)$saved['piwigo_base_url'], '/');
+    }
+  }
+  return $settings;
+}
+
+function bratonien_tools_save_webdav_warmup_settings()
+{
+  $current = bratonien_tools_get_webdav_warmup_settings();
+  $enabled = !empty($_POST['webdav_warmup_enabled']);
+  $batch_size = isset($_POST['webdav_warmup_batch_size']) ? (int)$_POST['webdav_warmup_batch_size'] : (int)$current['batch_size'];
+  $periodic_hours = isset($_POST['webdav_warmup_periodic_hours']) ? (int)$_POST['webdav_warmup_periodic_hours'] : (int)$current['periodic_hours'];
+  $batch_size = max(1, min(50, $batch_size));
+  $periodic_hours = max(1, min(168, $periodic_hours));
+
+  $payload = array(
+    'enabled'=>$enabled,
+    'batch_size'=>$batch_size,
+    'periodic_hours'=>$periodic_hours,
+    'piwigo_base_url'=>(string)$current['piwigo_base_url'],
+  );
+  $json = json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
+  if ($json === false) throw new RuntimeException('Warmup-Einstellungen konnten nicht serialisiert werden.');
+
+  $file = bratonien_tools_webdav_warmup_settings_file();
+  $directory = dirname($file);
+  if (!is_dir($directory) && !@mkdir($directory, 0775, true) && !is_dir($directory))
+  {
+    throw new RuntimeException('Warmup-Einstellungsverzeichnis konnte nicht angelegt werden.');
+  }
+  $tmp = $file.'.tmp-'.bin2hex(random_bytes(4));
+  if (@file_put_contents($tmp, $json."\n", LOCK_EX) === false)
+  {
+    throw new RuntimeException('Warmup-Einstellungen konnten nicht gespeichert werden.');
+  }
+  @chmod($tmp, 0664);
+  if (!@rename($tmp, $file))
+  {
+    @unlink($tmp);
+    throw new RuntimeException('Warmup-Einstellungen konnten nicht atomar gespeichert werden.');
+  }
+
+  return array('message'=>sprintf(
+    'WebDAV-Cache-Warmup gespeichert: %s, %d Bilder pro Batch, Eingangsprüfung alle %d Stunden.',
+    $enabled ? 'aktiv' : 'inaktiv',
+    $batch_size,
+    $periodic_hours
+  ));
+}