Bereinige versehentlich angelegte Leerdatei

0.9.7.7: Connector-Altbestand einmalig zurücksetzen

.ci-trigger-0977

@@ -0,0 +1 @@
+0.9.7.7

.github/workflows/lint.yml

@@ -5,8 +5,12 @@ on:
   pull_request:
 
 jobs:
-  syntax:
+  php-syntax:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        php-version: ['8.2', '8.3', '8.4', '8.5']
     steps:
       - name: Repository auschecken
         uses: actions/checkout@v4
@@ -14,7 +18,7 @@ jobs:
       - name: PHP installieren
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.2'
+          php-version: ${{ matrix.php-version }}
           coverage: none
 
       - name: PHP Syntax pruefen
@@ -36,6 +40,12 @@ jobs:
             exit 1
           fi
 
+  script-syntax:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Repository auschecken
+        uses: actions/checkout@v4
+
       - name: Admin JavaScript Syntax pruefen
         shell: bash
         run: |

admin.php

@@ -9,6 +9,74 @@ check_status(ACCESS_ADMINISTRATOR);
 require_once(BRATONIEN_TOOLS_PATH . 'include/tool_registry.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_system.inc.php');
 
+function bratonien_tools_nc_connector_admin_connections(array $connections)
+{
+  $by_id = array();
+  foreach ($connections as $connection)
+  {
+    $by_id[(int)$connection['id']] = $connection;
+  }
+
+  $hidden_legacy_ids = array();
+  $logical_remote = array();
+  foreach ($connections as $connection)
+  {
+    if ((string)($connection['adapter'] ?? '') !== 'remote') continue;
+    $migration = isset($connection['config']['migration']) && is_array($connection['config']['migration'])
+      ? $connection['config']['migration']
+      : array();
+    if ((string)($migration['role'] ?? '') !== 'webdav-primary-candidate') continue;
+
+    $legacy_id = (int)($migration['legacy_fallback_connection_id'] ?? 0);
+    if ($legacy_id < 1 || empty($by_id[$legacy_id]) || (string)$by_id[$legacy_id]['adapter'] !== 'local') continue;
+
+    $legacy = $by_id[$legacy_id];
+    $hidden_legacy_ids[$legacy_id] = true;
+    $connection['logical_connection'] = true;
+    $connection['legacy_fallback_connection_id'] = $legacy_id;
+    $connection['enabled'] = !empty($connection['enabled']) || !empty($legacy['enabled']);
+    if ($connection['enabled']) $connection['takeover_state'] = 'active';
+    $connection['fallback_stored'] = !empty($connection['fallback_stored']) || !empty($legacy['fallback_stored']);
+    if (trim((string)$connection['name']) === '') $connection['name'] = (string)$legacy['name'];
+    $logical_remote[(int)$connection['id']] = $connection;
+  }
+
+  $visible = array();
+  foreach ($connections as $connection)
+  {
+    $id = (int)$connection['id'];
+    if (isset($hidden_legacy_ids[$id])) continue;
+    if (isset($logical_remote[$id])) $connection = $logical_remote[$id];
+    $visible[] = $connection;
+  }
+
+  return $visible;
+}
+
+function bratonien_tools_nc_connector_admin_last_status(array $connection)
+{
+  $latest = bratonien_tools_nc_connector_connection_last_status($connection);
+  $legacy_id = (int)($connection['legacy_fallback_connection_id'] ?? 0);
+  if ($legacy_id < 1)
+  {
+    return $latest;
+  }
+
+  $legacy = bratonien_tools_nc_connector_connection($legacy_id, false);
+  if (!$legacy)
+  {
+    return $latest;
+  }
+
+  $legacy_status = bratonien_tools_nc_connector_connection_last_status($legacy);
+  if ((int)($legacy_status['timestamp'] ?? 0) > (int)($latest['timestamp'] ?? 0))
+  {
+    return $legacy_status;
+  }
+
+  return $latest;
+}
+
 $tools = bratonien_tools_get_tools();
 $messages = array();
 $errors = array();
@@ -94,6 +162,19 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['bratonien_tool']))
   );
 
   $redirect_url = get_root_url().'admin.php?page=plugin-'.BRATONIEN_TOOLS_ID;
+  $wizard_action = strpos($tool_id, 'nc_connector_wizard_') === 0
+    || $tool_id === 'nc_connector_migrate_start'
+    || $tool_id === 'nc_connector_edit_start';
+  if ($wizard_action)
+  {
+    $wizard_closed = $tool_id === 'nc_connector_wizard_reset'
+      || ($tool_id === 'nc_connector_wizard_finish' && empty($errors));
+    if (($tool_id === 'nc_connector_migrate_start' || $tool_id === 'nc_connector_edit_start') && !empty($errors))
+    {
+      $wizard_closed = true;
+    }
+    $redirect_url .= '&nc_wizard='.($wizard_closed ? 'closed' : 'open');
+  }
   if (!headers_sent())
   {
     header('Location: '.$redirect_url, true, 303);
@@ -115,9 +196,17 @@ $asset_environment = bratonien_tools_get_asset_environment();
 $album_shares = bratonien_tools_get_album_shares();
 $private_albums = bratonien_tools_get_private_albums();
 $nc_connector = bratonien_tools_nc_connector_status();
+$nc_connector_runtime_connections = $nc_connector['connections'];
+$nc_connector['connections'] = bratonien_tools_nc_connector_admin_connections($nc_connector_runtime_connections);
+$nc_connector['connection_count'] = count($nc_connector['connections']);
+$nc_connector['active_count'] = 0;
+foreach ($nc_connector['connections'] as $visible_connection)
+{
+  if (!empty($visible_connection['enabled'])) $nc_connector['active_count']++;
+}
 foreach ($nc_connector['connections'] as &$nc_connection)
 {
-  $nc_connection['last_sync'] = bratonien_tools_nc_connector_connection_last_status($nc_connection);
+  $nc_connection['last_sync'] = bratonien_tools_nc_connector_admin_last_status($nc_connection);
   $nc_connection['display_name'] = $nc_connection['name'];
 
   $storage_lines = array();
@@ -166,7 +255,7 @@ $nc_system_defaults = array(
 );
 $nc_connector['system'] = array_merge(
   $nc_system_defaults,
-  bratonien_tools_nc_connector_system_status($nc_connector['connections'])
+  bratonien_tools_nc_connector_system_status($nc_connector_runtime_connections)
 );
 $album_lock_page_number = isset($_GET['br_album_page']) ? max(1, (int)$_GET['br_album_page']) : 1;
 $album_lock_search = isset($_GET['br_album_search']) ? trim((string)$_GET['br_album_search']) : '';
@@ -292,4 +381,4 @@ $admin_content .= $template->parse('asset_manager_admin_content', true);
 $admin_content .= $template->parse('album_shares_admin_content', true);
 $admin_content .= $template->parse('nc_connector_admin_content', true);
 $admin_content .= $template->parse('system_admin_content', true);
-$template->assign('ADMIN_CONTENT', $admin_content);
+$template->assign('ADMIN_CONTENT', $admin_content);

include/nc_connector_delete_safe.inc.php

@@ -36,14 +36,7 @@ function bratonien_tools_nc_connector_remove_webdav_piwigo_content(array $connec
   include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
 
   $image_rows = array();
-  $query = '
-SELECT DISTINCT i.id, i.path, i.representative_ext
-  FROM '.IMAGES_TABLE.' AS i
-  LEFT JOIN '.CATEGORIES_TABLE.' AS sc ON sc.id = i.storage_category_id
-  LEFT JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON ic.image_id = i.id
-  LEFT JOIN '.CATEGORIES_TABLE.' AS vc ON vc.id = ic.category_id
-  WHERE sc.site_id = '.$site_id.' OR vc.site_id = '.$site_id.'
-;';
+  $query = '\nSELECT DISTINCT i.id, i.path, i.representative_ext\n  FROM '.IMAGES_TABLE.' AS i\n  LEFT JOIN '.CATEGORIES_TABLE.' AS sc ON sc.id = i.storage_category_id\n  LEFT JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON ic.image_id = i.id\n  LEFT JOIN '.CATEGORIES_TABLE.' AS vc ON vc.id = ic.category_id\n  WHERE sc.site_id = '.$site_id.' OR vc.site_id = '.$site_id.'\n;';
   $result = pwg_query($query);
   while ($row = pwg_db_fetch_assoc($result))
   {
@@ -84,10 +77,8 @@ SELECT DISTINCT i.id, i.path, i.representative_ext
 }
 
 /**
- * Delete a connector connection from Piwigo without depending on the web
- * server being allowed to write into root-owned runtime directories.
- * WebDAV-managed Piwigo records are removed before the connection itself so
- * deleted remote content cannot remain visible or addressable in Piwigo.
+ * Delete exactly the connection selected by the user.
+ * No other connector record is implicitly removed.
  */
 function bratonien_tools_nc_connector_delete_safe()
 {
@@ -112,10 +103,7 @@ function bratonien_tools_nc_connector_delete_safe()
 
   $status_dir = rtrim(PHPWG_ROOT_PATH, '/').'/_data/bratonien-tools/nc-connector-status';
   $public_status = $status_dir.'/connection-'.$id.'.json';
-  if (is_file($public_status))
-  {
-    @unlink($public_status);
-  }
+  if (is_file($public_status)) @unlink($public_status);
 
   if (is_dir($status_dir) || @mkdir($status_dir, 0755, true))
   {
@@ -125,11 +113,11 @@ function bratonien_tools_nc_connector_delete_safe()
   if ((int)$cleanup['site_id'] > 0)
   {
     return array(
-      'message'=>'Connector-Verbindung wurde gelöscht. Die zugehörigen Piwigo-Alben und '.(int)$cleanup['images'].' Bilder wurden aus Piwigo entfernt. Nextcloud-Dateien blieben unverändert. Laufzeit- und Vorschaudaten werden automatisch bereinigt.',
+      'message'=>'Verbindung wurde gelöscht. Die zugehörigen Piwigo-Alben und '.(int)$cleanup['images'].' Bilder wurden aus Piwigo entfernt. Nextcloud-Dateien blieben unverändert.',
     );
   }
 
   return array(
-    'message'=>'Connector-Verbindung wurde gelöscht. Verbliebene Laufzeitdateien werden vor dem nächsten Connector-Lauf automatisch entfernt. Quelldateien blieben unverändert.',
+    'message'=>'Verbindung wurde gelöscht. Verbliebene Laufzeitdaten werden automatisch bereinigt. Quelldateien blieben unverändert.',
   );
 }

include/nc_connector_edit.inc.php

@@ -13,12 +13,22 @@ function bratonien_tools_nc_connector_migration_state(array $connection)
   if (trim((string)($config['nextcloud_url'] ?? '')) === '') $missing[] = 'Nextcloud-Adresse';
   if (trim((string)($credentials['nextcloud_user'] ?? '')) === '') $missing[] = 'Nextcloud-Benutzer';
   if ((string)($credentials['nextcloud_password'] ?? '') === '') $missing[] = 'Nextcloud-Passwort';
-  if (trim((string)($credentials['api_key_id'] ?? '')) === '') $missing[] = 'Piwigo-API-Schluessel-ID';
-  if (trim((string)($credentials['api_key_secret'] ?? '')) === '') $missing[] = 'Piwigo-API-Geheimnis';
+
+  $api_id = trim((string)($credentials['api_key_id'] ?? ''));
+  $api_secret = trim((string)($credentials['api_key_secret'] ?? ''));
+  $fallback_user = trim((string)($credentials['piwigo_user'] ?? ''));
+  $fallback_password = (string)($credentials['piwigo_password'] ?? '');
+  $api_complete = $api_id !== '' && $api_secret !== '';
+  $fallback_complete = $fallback_user !== '' && $fallback_password !== '';
+
+  if (($api_id === '') !== ($api_secret === '')) $missing[] = 'vollstaendiger Piwigo-API-Zugang';
+  if (!$api_complete && !$fallback_complete) $missing[] = 'Piwigo-API oder Benutzer/Passwort-Fallback';
 
   return array(
     'ready'=>!$missing,
     'missing'=>$missing,
+    'api_available'=>$api_complete,
+    'fallback_available'=>$fallback_complete,
   );
 }
 
@@ -112,7 +122,7 @@ function bratonien_tools_nc_connector_prepare_webdav_wizard_from_connection(arra
   {
     $path = trim((string)($root['webdav_path'] ?? ''), '/');
     $fileid = (int)($root['fileid'] ?? 0);
-    if ($path === '' || $fileid < 1) continue;
+    if ($fileid < 1) continue;
     $selected[] = $path;
     $selected_ids[$path] = $fileid;
   }

include/nc_connector_scheduler.inc.php

@@ -0,0 +1,210 @@
+<?php
+if (!defined('PHPWG_ROOT_PATH'))
+{
+  die('Hacking attempt!');
+}
+
+function bratonien_tools_nc_scheduler_paths()
+{
+  $base = rtrim(PHPWG_ROOT_PATH, '/').'/_data/bratonien-tools';
+  return array(
+    'base'=>$base,
+    'runtime'=>$base.'/nc-connector-runtime',
+    'state_root'=>$base.'/nc-connector-state',
+    'scheduler'=>$base.'/nc-connector-scheduler',
+    'state'=>$base.'/nc-connector-scheduler/state.json',
+    'trigger_lock'=>$base.'/nc-connector-scheduler/trigger.lock',
+    'worker_lock'=>$base.'/nc-connector-scheduler/worker.lock',
+    'log'=>$base.'/nc-connector-scheduler/last-worker.log',
+    'status_root'=>$base.'/nc-connector-status',
+  );
+}
+
+function bratonien_tools_nc_scheduler_interval()
+{
+  global $conf;
+  $interval = isset($conf['bratonien_nc_scheduler_interval']) ? (int)$conf['bratonien_nc_scheduler_interval'] : 60;
+  return max(60, $interval);
+}
+
+function bratonien_tools_nc_scheduler_ensure_dirs()
+{
+  foreach (bratonien_tools_nc_scheduler_paths() as $key=>$path)
+  {
+    if (in_array($key, array('state','trigger_lock','worker_lock','log'), true)) continue;
+    if (!is_dir($path) && !@mkdir($path, 0750, true) && !is_dir($path))
+    {
+      return false;
+    }
+  }
+  return true;
+}
+
+function bratonien_tools_nc_scheduler_read_state()
+{
+  $paths = bratonien_tools_nc_scheduler_paths();
+  if (!is_readable($paths['state'])) return array();
+  $decoded = json_decode((string)@file_get_contents($paths['state']), true);
+  return is_array($decoded) ? $decoded : array();
+}
+
+function bratonien_tools_nc_scheduler_write_state(array $state)
+{
+  $paths = bratonien_tools_nc_scheduler_paths();
+  if (!bratonien_tools_nc_scheduler_ensure_dirs()) return false;
+  $json = json_encode($state, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
+  if (!is_string($json)) return false;
+  $tmp = $paths['state'].'.tmp';
+  if (@file_put_contents($tmp, $json."\n", LOCK_EX) === false) return false;
+  @chmod($tmp, 0640);
+  return @rename($tmp, $paths['state']);
+}
+
+function bratonien_tools_nc_scheduler_write_connection_status($connection_id, $state, $message)
+{
+  $connection_id = (int)$connection_id;
+  if ($connection_id < 1) return false;
+  $paths = bratonien_tools_nc_scheduler_paths();
+  if (!bratonien_tools_nc_scheduler_ensure_dirs()) return false;
+  $target = $paths['status_root'].'/connection-'.$connection_id.'.json';
+  $existing = array();
+  if (is_readable($target))
+  {
+    $decoded = json_decode((string)@file_get_contents($target), true);
+    if (is_array($decoded)) $existing = $decoded;
+  }
+  $existing['state'] = (string)$state;
+  $existing['message'] = (string)$message;
+  $existing['timestamp'] = time();
+  $existing['connection_id'] = $connection_id;
+  $json = json_encode($existing, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
+  if (!is_string($json)) return false;
+  $tmp = $target.'.tmp';
+  if (@file_put_contents($tmp, $json."\n", LOCK_EX) === false) return false;
+  @chmod($tmp, 0644);
+  return @rename($tmp, $target);
+}
+
+function bratonien_tools_nc_scheduler_install()
+{
+  if (!bratonien_tools_nc_scheduler_ensure_dirs()) return false;
+  $state = bratonien_tools_nc_scheduler_read_state();
+  if (empty($state['next_due']))
+  {
+    $state['next_due'] = time();
+    $state['enabled'] = true;
+    $state['mode'] = 'piwigo-native';
+    bratonien_tools_nc_scheduler_write_state($state);
+  }
+  return true;
+}
+
+function bratonien_tools_nc_scheduler_php_binary()
+{
+  foreach (array('/usr/bin/php', '/usr/local/bin/php', PHP_BINARY) as $candidate)
+  {
+    if (is_string($candidate) && $candidate !== '' && is_executable($candidate)) return $candidate;
+  }
+  return '';
+}
+
+function bratonien_tools_nc_scheduler_spawn($force = false, $connection_id = 0)
+{
+  $connection_id = max(0, (int)$connection_id);
+  $paths = bratonien_tools_nc_scheduler_paths();
+  if (!bratonien_tools_nc_scheduler_ensure_dirs())
+  {
+    throw new RuntimeException('Der native NC-Scheduler kann sein Laufzeitverzeichnis nicht anlegen.');
+  }
+
+  $lock = @fopen($paths['trigger_lock'], 'c+');
+  if (!is_resource($lock) || !@flock($lock, LOCK_EX | LOCK_NB))
+  {
+    if (is_resource($lock)) fclose($lock);
+    return array('started'=>false, 'message'=>'Ein NC-Abgleich wird bereits vorbereitet.');
+  }
+
+  $state = bratonien_tools_nc_scheduler_read_state();
+  $now = time();
+  $next_due = (int)($state['next_due'] ?? 0);
+  if (!$force && $next_due > $now)
+  {
+    @flock($lock, LOCK_UN);
+    fclose($lock);
+    return array('started'=>false, 'message'=>'Der nächste NC-Abgleich ist noch nicht fällig.');
+  }
+
+  $php = bratonien_tools_nc_scheduler_php_binary();
+  if ($php === '')
+  {
+    @flock($lock, LOCK_UN);
+    fclose($lock);
+    throw new RuntimeException('Kein ausführbares PHP-CLI für den nativen NC-Scheduler gefunden.');
+  }
+
+  $state['enabled'] = true;
+  $state['mode'] = 'piwigo-native';
+  $state['state'] = 'queued';
+  $state['message'] = $connection_id > 0 ? 'NC-Abgleich für Verbindung #'.$connection_id.' wurde angefordert.' : 'NC-Abgleich für alle Verbindungen wurde angefordert.';
+  $state['queued_at'] = $now;
+  $state['timestamp'] = $now;
+  $state['connection_id'] = $connection_id;
+  $state['next_due'] = $now + bratonien_tools_nc_scheduler_interval();
+  bratonien_tools_nc_scheduler_write_state($state);
+  if ($connection_id > 0)
+  {
+    bratonien_tools_nc_scheduler_write_connection_status($connection_id, 'queued', 'Abgleich wurde angefordert.');
+  }
+
+  $runner = BRATONIEN_TOOLS_PATH.'runtime/native-runner.php';
+  $runner_args = $connection_id > 0 ? ' --connection-id='.escapeshellarg((string)$connection_id) : '';
+  $command = escapeshellarg($php).' '.escapeshellarg($runner).$runner_args.' >> '.escapeshellarg($paths['log']).' 2>&1 &';
+  $spec = array(
+    0=>array('file','/dev/null','r'),
+    1=>array('file','/dev/null','a'),
+    2=>array('file','/dev/null','a'),
+  );
+  $process = function_exists('proc_open') ? @proc_open(array('/bin/sh','-c',$command), $spec, $pipes) : false;
+  $exit = is_resource($process) ? proc_close($process) : 1;
+
+  @flock($lock, LOCK_UN);
+  fclose($lock);
+
+  if ($exit !== 0)
+  {
+    $state = bratonien_tools_nc_scheduler_read_state();
+    $state['state'] = 'error';
+    $state['message'] = 'Der native NC-Abgleich konnte nicht gestartet werden.';
+    $state['timestamp'] = time();
+    bratonien_tools_nc_scheduler_write_state($state);
+    if ($connection_id > 0)
+    {
+      bratonien_tools_nc_scheduler_write_connection_status($connection_id, 'error', 'Abgleich konnte nicht gestartet werden.');
+    }
+    throw new RuntimeException('Der native NC-Abgleich konnte nicht gestartet werden.');
+  }
+
+  return array('started'=>true, 'message'=>$connection_id > 0 ? 'Abgleich für Verbindung #'.$connection_id.' wurde angefordert.' : 'Abgleich für alle Verbindungen wurde angefordert.');
+}
+
+function bratonien_tools_nc_scheduler_tick()
+{
+  $state = bratonien_tools_nc_scheduler_read_state();
+  if (isset($state['enabled']) && !$state['enabled']) return;
+  $next_due = (int)($state['next_due'] ?? 0);
+  if ($next_due > time()) return;
+
+  try
+  {
+    bratonien_tools_nc_scheduler_spawn(false, 0);
+  }
+  catch (Throwable $e)
+  {
+    $state = bratonien_tools_nc_scheduler_read_state();
+    $state['state'] = 'error';
+    $state['message'] = $e->getMessage();
+    $state['timestamp'] = time();
+    $state['next_due'] = time() + bratonien_tools_nc_scheduler_interval();
+    bratonien_tools_nc_scheduler_write_state($state);
+  }
+}

include/nc_connector_system.inc.php

@@ -4,109 +4,13 @@ if (!defined('PHPWG_ROOT_PATH'))
   die('Hacking attempt!');
 }
 
-function bratonien_tools_nc_connector_systemctl_value(array $args)
-{
-  if (!function_exists('proc_open'))
-  {
-    return '';
-  }
-
-  $command = array_merge(array('/usr/bin/systemctl'), $args);
-  $spec = array(
-    0 => array('file', '/dev/null', 'r'),
-    1 => array('pipe', 'w'),
-    2 => array('pipe', 'w'),
-  );
-  $environment = array_merge($_ENV, array('LC_ALL'=>'C', 'LANG'=>'C'));
-  $process = @proc_open($command, $spec, $pipes, null, $environment);
-  if (!is_resource($process))
-  {
-    return '';
-  }
-  $stdout = stream_get_contents($pipes[1]);
-  stream_get_contents($pipes[2]);
-  fclose($pipes[1]);
-  fclose($pipes[2]);
-  $exit = proc_close($process);
-  return $exit === 0 ? trim((string)$stdout) : '';
-}
-
-function bratonien_tools_nc_connector_parse_systemd_time($value)
-{
-  $value = trim((string)$value);
-  if ($value === '' || strtolower($value) === 'n/a')
-  {
-    return 0;
-  }
-  $parsed = strtotime($value);
-  return $parsed === false ? 0 : (int)$parsed;
-}
-
-function bratonien_tools_nc_connector_monotonic_to_timestamp($value)
-{
-  $value = trim((string)$value);
-  if ($value === '' || $value === '0' || strtolower($value) === 'n/a')
-  {
-    return 0;
-  }
-
-  if (preg_match('/^([0-9]+)(?:us)?$/', $value, $matches))
-  {
-    $next_boot_seconds = ((float)$matches[1]) / 1000000;
-  }
-  else
-  {
-    return 0;
-  }
-
-  $uptime_raw = @file_get_contents('/proc/uptime');
-  if (!is_string($uptime_raw) || !preg_match('/^([0-9]+(?:\.[0-9]+)?)/', trim($uptime_raw), $uptime_match))
-  {
-    return 0;
-  }
-
-  $remaining = $next_boot_seconds - (float)$uptime_match[1];
-  if ($remaining < -1)
-  {
-    return 0;
-  }
-
-  return (int)round(time() + max(0, $remaining));
-}
-
-function bratonien_tools_nc_connector_next_from_timer_list($timer)
-{
-  $line = bratonien_tools_nc_connector_systemctl_value(array(
-    'list-timers', '--all', '--no-pager', '--no-legend', $timer,
-  ));
-  if ($line === '')
-  {
-    return 0;
-  }
-
-  $first_line = trim((string)strtok($line, "\n"));
-  if (preg_match('/^(\S+\s+\d{4}-\d{2}-\d{2}\s+\d{2}:\d{2}:\d{2}\s+\S+)/', $first_line, $matches))
-  {
-    $parsed = strtotime($matches[1]);
-    return $parsed === false ? 0 : (int)$parsed;
-  }
-
-  return 0;
-}
+require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_scheduler.inc.php');
 
 function bratonien_tools_nc_connector_connection_last_status(array $connection)
 {
   $empty = array(
-    'timestamp'=>0,
-    'label'=>'Nicht verfügbar',
-    'state'=>'',
-    'message'=>'',
-    'auth_mode'=>'',
-    'api_state'=>'',
-    'api_message'=>'',
-    'fallback_state'=>'',
-    'fallback_message'=>'',
-    'error_detail'=>'',
+    'timestamp'=>0,'label'=>'Nicht verfügbar','state'=>'','message'=>'','auth_mode'=>'',
+    'api_state'=>'','api_message'=>'','fallback_state'=>'','fallback_message'=>'','error_detail'=>'',
   );
 
   $connection_id = (int)($connection['id'] ?? 0);
@@ -114,42 +18,25 @@ function bratonien_tools_nc_connector_connection_last_status(array $connection)
   if ($connection_id > 0)
   {
     $candidates[] = rtrim(PHPWG_ROOT_PATH, '/').'/_data/bratonien-tools/nc-connector-status/connection-'.$connection_id.'.json';
+    $candidates[] = rtrim(PHPWG_ROOT_PATH, '/').'/_data/bratonien-tools/nc-connector-state/connection-'.$connection_id.'/connector-status.json';
   }
 
   $config = isset($connection['config']) && is_array($connection['config']) ? $connection['config'] : array();
   $state_dir = rtrim((string)($config['state_dir'] ?? ''), '/');
-  if ($state_dir === '' && $connection_id > 0)
-  {
-    $state_dir = '/var/lib/bratonien-tools/nc-connector/connection-'.$connection_id;
-  }
-  if ($state_dir !== '')
-  {
-    $candidates[] = $state_dir.'/connector-status.json';
-  }
+  if ($state_dir !== '') $candidates[] = $state_dir.'/connector-status.json';
 
   $decoded = null;
-  foreach ($candidates as $candidate)
+  foreach (array_unique($candidates) as $candidate)
   {
-    if (!is_readable($candidate))
-    {
-      continue;
-    }
+    if (!is_readable($candidate)) continue;
     $value = json_decode((string)@file_get_contents($candidate), true);
-    if (is_array($value))
-    {
-      $decoded = $value;
-      break;
-    }
-  }
-  if (!is_array($decoded))
-  {
-    return $empty;
+    if (is_array($value)) { $decoded = $value; break; }
   }
+  if (!is_array($decoded)) return $empty;
 
   $timestamp = (int)($decoded['timestamp'] ?? 0);
   $api = isset($decoded['api']) && is_array($decoded['api']) ? $decoded['api'] : array();
   $fallback = isset($decoded['fallback']) && is_array($decoded['fallback']) ? $decoded['fallback'] : array();
-
   return array(
     'timestamp'=>$timestamp,
     'label'=>$timestamp > 0 ? date('d.m.Y H:i:s', $timestamp) : 'Nicht verfügbar',
@@ -166,73 +53,88 @@ function bratonien_tools_nc_connector_connection_last_status(array $connection)
 
 function bratonien_tools_nc_connector_last_status(array $connections)
 {
-  $latest = array('timestamp'=>0, 'state'=>'', 'message'=>'', 'auth_mode'=>'', 'api_state'=>'', 'api_message'=>'', 'fallback_state'=>'', 'fallback_message'=>'', 'error_detail'=>'');
-
+  $latest = array('timestamp'=>0,'state'=>'','message'=>'','auth_mode'=>'','api_state'=>'','api_message'=>'','fallback_state'=>'','fallback_message'=>'','error_detail'=>'');
   foreach ($connections as $connection)
   {
-    if (empty($connection['enabled']) || (string)($connection['takeover_state'] ?? '') !== 'active')
-    {
-      continue;
-    }
-
+    if (empty($connection['enabled'])) continue;
     $status = bratonien_tools_nc_connector_connection_last_status($connection);
-    if ((int)$status['timestamp'] >= (int)$latest['timestamp'])
-    {
-      $latest = $status;
-    }
+    if ((int)$status['timestamp'] >= (int)$latest['timestamp']) $latest = $status;
   }
-
   return $latest;
 }
 
 function bratonien_tools_nc_connector_system_status(array $connections = array())
 {
-  $timer = 'bratonien-nc-connector.timer';
-  $service = 'bratonien-nc-connector.service';
-
-  $next_realtime_raw = bratonien_tools_nc_connector_systemctl_value(array('show', $timer, '--property=NextElapseUSecRealtime', '--value'));
-  $next_timestamp = bratonien_tools_nc_connector_parse_systemd_time($next_realtime_raw);
-
-  if ($next_timestamp <= 0)
-  {
-    $next_monotonic_raw = bratonien_tools_nc_connector_systemctl_value(array('show', $timer, '--property=NextElapseUSecMonotonic', '--value'));
-    $next_timestamp = bratonien_tools_nc_connector_monotonic_to_timestamp($next_monotonic_raw);
-  }
-
-  if ($next_timestamp <= 0)
-  {
-    $next_timestamp = bratonien_tools_nc_connector_next_from_timer_list($timer);
-  }
-
-  $active = bratonien_tools_nc_connector_systemctl_value(array('is-active', $timer));
-  $enabled = bratonien_tools_nc_connector_systemctl_value(array('is-enabled', $timer));
-
+  $scheduler = bratonien_tools_nc_scheduler_read_state();
+  $enabled = !isset($scheduler['enabled']) || !empty($scheduler['enabled']);
+  $scheduler_state = (string)($scheduler['state'] ?? '');
+  $running = $scheduler_state === 'running';
+  $queued = $scheduler_state === 'queued';
+  $started = (int)($scheduler['started_at'] ?? 0);
+  $next = (int)($scheduler['next_due'] ?? 0);
   $last = bratonien_tools_nc_connector_last_status($connections);
-  if ($last['timestamp'] <= 0)
+
+  if ($next > 0)
   {
-    $last_raw = bratonien_tools_nc_connector_systemctl_value(array('show', $service, '--property=ExecMainExitTimestamp', '--value'));
-    $last['timestamp'] = bratonien_tools_nc_connector_parse_systemd_time($last_raw);
+    $next_label = date('d.m.Y H:i:s', $next).' (beim nächsten Piwigo-Aufruf)';
   }
+  else
+  {
+    $next_label = 'Beim nächsten Piwigo-Aufruf';
+  }
+
+  $scheduler_timestamp = (int)($scheduler['timestamp'] ?? 0);
+  if ($scheduler_timestamp > (int)$last['timestamp'])
+  {
+    $last['timestamp'] = $scheduler_timestamp;
+    $last['state'] = $scheduler_state;
+    $last['message'] = (string)($scheduler['message'] ?? '');
+    if ($scheduler_state === 'error')
+    {
+      $detail = trim((string)($scheduler['stderr'] ?? ''));
+      if ($detail === '') $detail = trim((string)($scheduler['stdout'] ?? ''));
+      $last['error_detail'] = $detail;
+    }
+  }
+  elseif ((int)$last['timestamp'] <= 0 && !empty($scheduler['finished_at']))
+  {
+    $last['timestamp'] = (int)$scheduler['finished_at'];
+    $last['state'] = $scheduler_state;
+    $last['message'] = (string)($scheduler['message'] ?? '');
+    if ((string)$last['state'] === 'error')
+    {
+      $detail = trim((string)($scheduler['stderr'] ?? ''));
+      if ($detail === '') $detail = trim((string)($scheduler['stdout'] ?? ''));
+      $last['error_detail'] = $detail;
+    }
+  }
+
+  $current_label = 'Kein Lauf aktiv';
+  if ($queued) $current_label = 'Abgleich angefordert';
+  if ($running) $current_label = $started > 0 ? 'Läuft seit '.date('d.m.Y H:i:s', $started) : 'Läuft gerade';
 
   return array(
-    'timer_name' => $timer,
-    'timer_active' => $active === 'active',
-    'timer_enabled' => $enabled === 'enabled',
-    'last_run_timestamp' => (int)$last['timestamp'],
-    'last_run_label' => $last['timestamp'] > 0 ? date('d.m.Y H:i:s', (int)$last['timestamp']) : 'Nicht verfügbar',
-    'last_run_state' => (string)$last['state'],
-    'last_run_message' => (string)$last['message'],
-    'last_run_auth_mode' => (string)$last['auth_mode'],
-    'last_run_api_state' => (string)$last['api_state'],
-    'last_run_api_message' => (string)$last['api_message'],
-    'last_run_fallback_state' => (string)$last['fallback_state'],
-    'last_run_fallback_message' => (string)$last['fallback_message'],
-    'last_run_error_detail' => (string)$last['error_detail'],
-    'next_run_timestamp' => $next_timestamp,
-    'next_run_label' => $next_timestamp > 0 ? date('d.m.Y H:i:s', $next_timestamp) : 'Nicht verfügbar',
-    'legacy_runtime_exists' => is_dir('/opt/piwigo-sync'),
-    'legacy_config_exists' => is_dir('/etc/piwigo-sync'),
-    'legacy_service_exists' => is_file('/etc/systemd/system/piwigo-sync.service'),
-    'legacy_timer_exists' => is_file('/etc/systemd/system/piwigo-sync.timer'),
+    'timer_name'=>'Piwigo nativer NC-Scheduler',
+    'timer_active'=>$enabled,
+    'timer_enabled'=>$enabled,
+    'service_active'=>$running || $queued,
+    'current_run_timestamp'=>$queued ? (int)($scheduler['queued_at'] ?? 0) : $started,
+    'current_run_label'=>$current_label,
+    'last_run_timestamp'=>(int)$last['timestamp'],
+    'last_run_label'=>(int)$last['timestamp'] > 0 ? date('d.m.Y H:i:s', (int)$last['timestamp']) : 'Nicht verfügbar',
+    'last_run_state'=>(string)$last['state'],
+    'last_run_message'=>(string)$last['message'],
+    'last_run_auth_mode'=>(string)$last['auth_mode'],
+    'last_run_api_state'=>(string)$last['api_state'],
+    'last_run_api_message'=>(string)$last['api_message'],
+    'last_run_fallback_state'=>(string)$last['fallback_state'],
+    'last_run_fallback_message'=>(string)$last['fallback_message'],
+    'last_run_error_detail'=>(string)$last['error_detail'],
+    'next_run_timestamp'=>$next,
+    'next_run_label'=>$next_label,
+    'legacy_runtime_exists'=>is_dir('/opt/piwigo-sync'),
+    'legacy_config_exists'=>is_dir('/etc/piwigo-sync'),
+    'legacy_service_exists'=>is_file('/etc/systemd/system/piwigo-sync.service'),
+    'legacy_timer_exists'=>is_file('/etc/systemd/system/piwigo-sync.timer'),
   );
 }

include/nc_connector_takeover.inc.php

@@ -1,135 +0,0 @@
-<?php
-if (!defined('PHPWG_ROOT_PATH'))
-{
-  die('Hacking attempt!');
-}
-
-/**
- * Controlled handover preparation for verified NC Connector connections.
- *
- * This phase intentionally does not stop, disable or modify the legacy
- * piwigo-sync service. It only marks a verified Connector connection as ready
- * for a later controlled takeover. The marker can be rolled back at any time.
- */
-
-function bratonien_tools_nc_connector_ensure_takeover_state()
-{
-  bratonien_tools_nc_connector_ensure_table();
-  $table = bratonien_tools_nc_connector_table();
-  pwg_query("ALTER TABLE `$table` MODIFY takeover_state enum('imported','verified','ready','active','disabled') NOT NULL DEFAULT 'imported'");
-}
-
-function bratonien_tools_nc_connector_prepare_takeover()
-{
-  $id = isset($_POST['connection_id']) ? (int)$_POST['connection_id'] : 0;
-  $connection = bratonien_tools_nc_connector_connection($id, false);
-  if (!$connection)
-  {
-    throw new RuntimeException('Connector-Verbindung wurde nicht gefunden.');
-  }
-  if ($connection['takeover_state'] !== 'verified')
-  {
-    throw new RuntimeException('Nur eine erfolgreich verifizierte Verbindung kann fuer die Uebergabe vorbereitet werden.');
-  }
-
-  $config = $connection['config'];
-  $verification = isset($config['verification']) && is_array($config['verification'])
-    ? $config['verification']
-    : array();
-  if (empty($verification['ok']))
-  {
-    throw new RuntimeException('Die gespeicherte Verifikation ist nicht erfolgreich. Bitte die Verbindung erneut pruefen.');
-  }
-
-  $config['takeover'] = array(
-    'prepared_at' => date('Y-m-d H:i:s'),
-    'legacy_sync_untouched' => true,
-    'connector_enabled' => false,
-    'first_run' => array(
-      'status' => 'pending',
-      'finished_at' => null,
-      'detail' => '',
-    ),
-  );
-  $config_json = json_encode($config, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
-  if (!is_string($config_json))
-  {
-    throw new RuntimeException('Uebergabestatus konnte nicht gespeichert werden.');
-  }
-
-  bratonien_tools_nc_connector_ensure_takeover_state();
-  $table = bratonien_tools_nc_connector_table();
-  $now = date('Y-m-d H:i:s');
-  pwg_query("UPDATE `$table` SET
-    takeover_state = 'ready',
-    enabled = 0,
-    config_json = '".pwg_db_real_escape_string($config_json)."',
-    updated = '".pwg_db_real_escape_string($now)."'
-    WHERE id = ".(int)$connection['id']);
-
-  return array(
-    'message' => 'Die verifizierte Nextcloud-Verbindung ist jetzt fuer die kontrollierte Uebergabe vorbereitet. Der Connector wurde noch nicht aktiviert und der Legacy-Sync bleibt unveraendert Produktionsverbindung.',
-  );
-}
-
-function bratonien_tools_nc_connector_cancel_takeover()
-{
-  $id = isset($_POST['connection_id']) ? (int)$_POST['connection_id'] : 0;
-  $connection = bratonien_tools_nc_connector_connection($id, false);
-  if (!$connection)
-  {
-    throw new RuntimeException('Connector-Verbindung wurde nicht gefunden.');
-  }
-  if ($connection['takeover_state'] !== 'ready')
-  {
-    throw new RuntimeException('Diese Verbindung befindet sich nicht in der Uebergabevorbereitung.');
-  }
-
-  $config = $connection['config'];
-  if (isset($config['takeover']))
-  {
-    unset($config['takeover']);
-  }
-  $config_json = json_encode($config, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
-  if (!is_string($config_json))
-  {
-    throw new RuntimeException('Uebergabestatus konnte nicht zurueckgesetzt werden.');
-  }
-
-  bratonien_tools_nc_connector_ensure_takeover_state();
-  $table = bratonien_tools_nc_connector_table();
-  $now = date('Y-m-d H:i:s');
-  pwg_query("UPDATE `$table` SET
-    takeover_state = 'verified',
-    enabled = 0,
-    config_json = '".pwg_db_real_escape_string($config_json)."',
-    updated = '".pwg_db_real_escape_string($now)."'
-    WHERE id = ".(int)$connection['id']);
-
-  return array(
-    'message' => 'Die Uebergabevorbereitung wurde zurueckgenommen. Die Verbindung bleibt verifiziert und deaktiviert; der Legacy-Sync bleibt unveraendert aktiv.',
-  );
-}
-
-/**
- * Normalize the outcome of a Connector sync run during takeover.
- *
- * Both "changed" and "no_changes" are successful results. Only "error"
- * represents a failed run and may trigger rollback of a controlled handover.
- */
-function bratonien_tools_nc_connector_takeover_result($status, $detail = '')
-{
-  $status = trim((string)$status);
-  if (!in_array($status, array('changed', 'no_changes', 'error'), true))
-  {
-    throw new RuntimeException('Unbekannter Connector-Laufstatus: '.$status);
-  }
-
-  return array(
-    'status' => $status,
-    'success' => $status !== 'error',
-    'changed' => $status === 'changed',
-    'finished_at' => date('Y-m-d H:i:s'),
-    'detail' => (string)$detail,
-  );
-}

include/nc_connector_webdav.inc.php

@@ -5,81 +5,8 @@ if (!defined('PHPWG_ROOT_PATH'))
 }
 
 /**
- * Return the only existing local connector as migration fallback.
- */
-function bratonien_tools_nc_connector_single_local_fallback()
-{
-  bratonien_tools_nc_connector_ensure_table();
-  $table = bratonien_tools_nc_connector_table();
-  $result = pwg_query("SELECT id, enabled, takeover_state, config_json FROM `$table` WHERE adapter='local' ORDER BY id");
-  $rows = array();
-
-  while ($row = pwg_db_fetch_assoc($result))
-  {
-    $rows[] = $row;
-    if (count($rows) > 1) return null;
-  }
-
-  if (count($rows) !== 1) return null;
-
-  $row = $rows[0];
-  $config = json_decode((string)$row['config_json'], true);
-  if (!is_array($config)) $config = array();
-
-  return array(
-    'id'=>(int)$row['id'],
-    'enabled'=>(bool)$row['enabled'],
-    'takeover_state'=>(string)$row['takeover_state'],
-    'config'=>$config,
-  );
-}
-
-/**
- * Link a WebDAV connection with the single existing local fallback.
- */
-function bratonien_tools_nc_connector_pair_migration_fallback($webdav_id, array &$webdav_config, $now)
-{
-  $legacy = bratonien_tools_nc_connector_single_local_fallback();
-  if (!$legacy) return null;
-
-  $legacy_id = (int)$legacy['id'];
-  if ($legacy_id < 1 || $legacy_id === (int)$webdav_id) return null;
-
-  $webdav_config['migration'] = array(
-    'role'=>'webdav-primary-candidate',
-    'legacy_fallback_connection_id'=>$legacy_id,
-    'fallback_policy'=>'keep-running',
-    'paired_at'=>(string)$now,
-    'cutover_state'=>'parallel',
-  );
-
-  $legacy_config = $legacy['config'];
-  $legacy_config['migration'] = array(
-    'role'=>'legacy-fallback',
-    'webdav_successor_connection_id'=>(int)$webdav_id,
-    'fallback_policy'=>'keep-running',
-    'paired_at'=>(string)$now,
-    'cutover_state'=>'parallel',
-  );
-
-  $legacy_json = json_encode($legacy_config, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
-  if (!is_string($legacy_json))
-  {
-    throw new RuntimeException('Die bestehende Verbindung konnte nicht als Migrations-Fallback markiert werden.');
-  }
-
-  $table = bratonien_tools_nc_connector_table();
-  pwg_query("UPDATE `$table` SET config_json='".pwg_db_real_escape_string($legacy_json)."', updated='".pwg_db_real_escape_string((string)$now)."' WHERE id=".$legacy_id." LIMIT 1");
-
-  return $legacy_id;
-}
-
-/**
- * Create or update a WebDAV-backed connector from the user-facing wizard.
- *
- * Remote connections are updated in place. When the editor was opened for a
- * legacy connection, a WebDAV successor is created and the legacy connection
- * stays available as fallback.
+ * Create or update one independent WebDAV connector connection.
+ * No migration pair, successor or implicit legacy fallback is created.
  */
 function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
 {
@@ -87,7 +14,7 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
 
   if (empty($state['scan_ok']) || empty($state['technical_complete']))
   {
-    throw new RuntimeException('Die WebDAV-Verbindung wurde im Assistenten noch nicht vollständig vorbereitet.');
+    throw new RuntimeException('Die WebDAV-Verbindung wurde im Assistenten noch nicht vollstaendig vorbereitet.');
   }
 
   $base_url = rtrim(trim((string)($state['base_url'] ?? '')), '/');
@@ -95,7 +22,7 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
   $password = (string)($state['_password'] ?? '');
   if ($base_url === '' || $username === '' || $password === '')
   {
-    throw new RuntimeException('Für den WebDAV-Zugang fehlen Nextcloud-Adresse oder Zugangsdaten.');
+    throw new RuntimeException('Fuer den WebDAV-Zugang fehlen Nextcloud-Adresse oder Zugangsdaten.');
   }
 
   $selected = isset($state['directory_selected']) && is_array($state['directory_selected'])
@@ -104,13 +31,20 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
   $selected_ids = isset($state['directory_selected_fileids']) && is_array($state['directory_selected_fileids'])
     ? $state['directory_selected_fileids']
     : array();
-  if (!$selected) throw new RuntimeException('Bitte mindestens ein Nextcloud-Verzeichnis auswählen.');
+
+  if (!$selected)
+  {
+    $selected = array('');
+  }
 
   $roots = array();
   foreach ($selected as $path)
   {
     $fileid = isset($selected_ids[$path]) ? (int)$selected_ids[$path] : 0;
-    if ($fileid < 1) throw new RuntimeException('Für ein ausgewähltes Nextcloud-Verzeichnis fehlt die eindeutige Datei-ID.');
+    if ($fileid < 1)
+    {
+      throw new RuntimeException('Fuer ein ausgewaehltes Nextcloud-Verzeichnis fehlt die eindeutige Datei-ID.');
+    }
     $display_name = $path === ''
       ? (trim((string)($state['display_name'] ?? '')) !== '' ? trim((string)$state['display_name']) : $username)
       : basename($path);
@@ -140,6 +74,11 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
     && (string)($editing_connection['config']['source_mode'] ?? '') === 'webdav-placeholder'
     && $editing_mode === 'update';
 
+  if ($editing_mode === 'migrate')
+  {
+    throw new RuntimeException('Die Migrationsfunktion wurde entfernt. Bitte eine normale WebDAV-Verbindung anlegen.');
+  }
+
   $config = array(
     'origin'=>'native',
     'source_mode'=>'webdav-placeholder',
@@ -154,7 +93,6 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
     'quiet_seconds'=>120,
     'max_wait_seconds'=>900,
     'full_sync_seconds'=>86400,
-    'parallel_test'=>true,
     'piwigo_auth'=>'connection-scoped',
     'api_enabled'=>$api_enabled,
   );
@@ -162,7 +100,7 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
   if ($editing_remote)
   {
     $old_config = is_array($editing_connection['config'] ?? null) ? $editing_connection['config'] : array();
-    foreach (array('state_dir','status_file','parallel_gallery_root','source_fingerprint','runtime','migration') as $preserve)
+    foreach (array('state_dir','status_file','parallel_gallery_root','source_fingerprint','runtime') as $preserve)
     {
       if (array_key_exists($preserve, $old_config)) $config[$preserve] = $old_config[$preserve];
     }
@@ -202,12 +140,12 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
     $config_json = json_encode($config, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
     if (!is_string($config_json)) throw new RuntimeException('WebDAV-Konfiguration konnte nicht serialisiert werden.');
 
-    pwg_query("UPDATE `$table` SET name='".pwg_db_real_escape_string($name)."', config_json='".pwg_db_real_escape_string($config_json)."', secret_blob='".pwg_db_real_escape_string($secret_blob)."', updated='".pwg_db_real_escape_string($now)."' WHERE id=".$editing_id." LIMIT 1");
+    pwg_query("UPDATE `$table` SET name='".pwg_db_real_escape_string($name)."', config_json='".pwg_db_real_escape_string($config_json)."', secret_blob='".pwg_db_real_escape_string($secret_blob)."', updated='".pwg_db_real_escape_string($now)."' WHERE id=".$editing_id." AND adapter='remote' LIMIT 1");
     unset($_SESSION['bratonien_nc_wizard']);
 
     return array(
       'connection_id'=>$editing_id,
-      'message'=>'WebDAV-Verbindung #'.$editing_id.' wurde gespeichert. Der nächste Connector-Lauf verwendet die neuen Einstellungen.',
+      'message'=>'WebDAV-Verbindung wurde gespeichert.',
     );
   }
 
@@ -226,36 +164,14 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
   $id = (int)pwg_db_insert_id();
   if ($id < 1) throw new RuntimeException('Die WebDAV-Verbindung konnte nicht eindeutig angelegt werden.');
 
-  try
-  {
-    $config['state_dir'] = '/var/lib/bratonien-tools/nc-connector/connection-'.$id;
-    $config['status_file'] = $config['state_dir'].'/connector-status.json';
-    $legacy_fallback_id = bratonien_tools_nc_connector_pair_migration_fallback($id, $config, $now);
-
-    $config_json = json_encode($config, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
-    if (!is_string($config_json))
-    {
-      throw new RuntimeException('Die WebDAV-Verbindung konnte nach dem Anlegen nicht serialisiert werden.');
-    }
-    pwg_query("UPDATE `$table` SET config_json='".pwg_db_real_escape_string($config_json)."' WHERE id=".$id." LIMIT 1");
-  }
-  catch (Throwable $e)
-  {
-    pwg_query("DELETE FROM `$table` WHERE id=".$id." LIMIT 1");
-    throw $e;
-  }
+  $config['state_dir'] = '/var/lib/bratonien-tools/nc-connector/connection-'.$id;
+  $config['status_file'] = $config['state_dir'].'/connector-status.json';
+  $config_json = json_encode($config, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+  if (!is_string($config_json)) throw new RuntimeException('WebDAV-Konfiguration konnte nach dem Anlegen nicht serialisiert werden.');
+  pwg_query("UPDATE `$table` SET config_json='".pwg_db_real_escape_string($config_json)."' WHERE id=".$id." AND adapter='remote' LIMIT 1");
 
   unset($_SESSION['bratonien_nc_wizard']);
 
-  if ($legacy_fallback_id !== null)
-  {
-    return array(
-      'connection_id'=>$id,
-      'legacy_fallback_connection_id'=>$legacy_fallback_id,
-      'message'=>'WebDAV-Nachfolger wurde angelegt. Die bestehende lokale Verbindung #'.$legacy_fallback_id.' bleibt als Fallback erhalten.',
-    );
-  }
-
   return array(
     'connection_id'=>$id,
     'message'=>'WebDAV-Verbindung wurde angelegt.',

include/nc_connector_wizard_webdav_flow.inc.php

@@ -28,7 +28,7 @@ function bratonien_tools_nc_wizard_scan_webdav_first()
   {
     try
     {
-      $response = bratonien_tools_nc_wizard_http($candidate_url.'/status.php');
+      $response = bratonien_tools_nc_transport_http($candidate_url.'/status.php');
       if ($response['status'] < 200 || $response['status'] >= 300) continue;
       $candidate_status = json_decode($response['body'], true);
       if (!is_array($candidate_status) || empty($candidate_status['installed'])) continue;
@@ -44,7 +44,7 @@ function bratonien_tools_nc_wizard_scan_webdav_first()
     throw new RuntimeException('Unter dieser Adresse konnte keine Nextcloud erreicht werden. HTTP und HTTPS wurden automatisch geprüft.');
   }
 
-  $user_response = bratonien_tools_nc_wizard_http(
+  $user_response = bratonien_tools_nc_transport_http(
     $base_url.'/ocs/v2.php/cloud/user?format=json',
     $username,
     $password,
@@ -104,7 +104,7 @@ function bratonien_tools_nc_wizard_scan_webdav_first()
     'api_error'=>'',
   ));
 
-  bratonien_tools_nc_wizard_refresh_directory_state($state, '');
+  bratonien_tools_nc_transport_refresh_directory_state($state, '');
   bratonien_tools_nc_wizard_store($state);
 
   return array('message'=>'Nextcloud und WebDAV wurden bestätigt. Jetzt können die Verzeichnisse des angemeldeten Benutzers ausgewählt werden.');
@@ -158,9 +158,35 @@ function bratonien_tools_nc_wizard_save_sources_dispatch()
   $state['technical_source'] = 'WebDAV-Verzeichnisse ausgewählt';
   $state['technical_error'] = '';
   $state['directory_selection_ready'] = false;
-  bratonien_tools_nc_wizard_store($state);
 
-  return array('message'=>'WebDAV-Verzeichnisse wurden übernommen. Die Verbindung ist für den parallelen Testweg vorbereitet.');
+  if ((string)($state['editing_mode'] ?? '') === 'migrate')
+  {
+    $editing_id = (int)($state['editing_connection_id'] ?? 0);
+    $connection = $editing_id > 0 ? bratonien_tools_nc_connector_connection($editing_id, true) : null;
+    if (!$connection || (string)$connection['adapter'] !== 'local')
+    {
+      throw new RuntimeException('Die zu migrierende Legacy-Verbindung ist nicht mehr verfügbar.');
+    }
+
+    $migration = bratonien_tools_nc_connector_migration_state($connection);
+    if (empty($migration['ready']))
+    {
+      throw new RuntimeException('Die WebDAV-Migration kann noch nicht abgeschlossen werden. Es fehlen: '.implode(', ', $migration['missing']).'.');
+    }
+
+    $credentials = bratonien_tools_nc_connector_scoped_secret($connection);
+    $state['_api_key_id'] = (string)($credentials['api_key_id'] ?? '');
+    $state['_api_key_secret'] = (string)($credentials['api_key_secret'] ?? '');
+    $state['api_status'] = !empty($migration['api_available']) ? 'ok' : 'skipped';
+    $state['api_error'] = '';
+    $state['step'] = 4;
+    bratonien_tools_nc_wizard_store($state);
+
+    return array('message'=>'WebDAV-Quelle wurde übernommen. Mit „Migration starten“ wird jetzt der WebDAV-Nachfolger angelegt; die Legacy-Verbindung bleibt als Fallback erhalten.');
+  }
+
+  bratonien_tools_nc_wizard_store($state);
+  return array('message'=>'WebDAV-Verzeichnisse wurden übernommen. Die Verbindung ist für den nächsten Einrichtungsschritt vorbereitet.');
 }
 
 function bratonien_tools_nc_wizard_finish_dispatch()

include/nc_legacy_reset.inc.php

@@ -0,0 +1,115 @@
+<?php
+if (!defined('PHPWG_ROOT_PATH'))
+{
+  die('Hacking attempt!');
+}
+
+function bratonien_tools_nc_legacy_remove_tree($path, $allowed_root)
+{
+  $path = rtrim(str_replace('\\', '/', (string)$path), '/');
+  $allowed_root = rtrim(str_replace('\\', '/', (string)$allowed_root), '/');
+  if ($path === '' || $allowed_root === '' || $path === $allowed_root || strpos($path, $allowed_root.'/') !== 0)
+  {
+    return 0;
+  }
+  if (!file_exists($path) && !is_link($path)) return 0;
+
+  if (is_link($path) || is_file($path))
+  {
+    return @unlink($path) ? 1 : 0;
+  }
+
+  $removed = 0;
+  $items = @scandir($path);
+  if (is_array($items))
+  {
+    foreach ($items as $item)
+    {
+      if ($item === '.' || $item === '..') continue;
+      $removed += bratonien_tools_nc_legacy_remove_tree($path.'/'.$item, $allowed_root);
+    }
+  }
+  if (@rmdir($path)) $removed++;
+  return $removed;
+}
+
+function bratonien_tools_nc_legacy_remove_state_files($state_root)
+{
+  $removed = 0;
+  foreach (glob(rtrim($state_root, '/').'/connection-*') ?: array() as $connection_dir)
+  {
+    if (!is_dir($connection_dir)) continue;
+    foreach (array('webdav-map.json', 'webdav-manifest.tsv', 'webdav-shadow-map.json') as $name)
+    {
+      $path = $connection_dir.'/'.$name;
+      if (is_file($path) && @unlink($path)) $removed++;
+    }
+  }
+  return $removed;
+}
+
+function bratonien_tools_nc_reset_legacy_imports()
+{
+  include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
+
+  $ids = array();
+  $result = pwg_query(
+    "SELECT id FROM ".IMAGES_TABLE.
+    " WHERE path LIKE '%nc-webdav-source/connection-%'"
+  );
+  while ($row = pwg_db_fetch_assoc($result))
+  {
+    $ids[] = (int)$row['id'];
+  }
+
+  if ($ids)
+  {
+    delete_elements($ids, false);
+  }
+
+  $data_root = rtrim(PHPWG_ROOT_PATH, '/').'/_data';
+  $tool_root = $data_root.'/bratonien-tools';
+  $removed_files = 0;
+  foreach (array(
+    $tool_root.'/nc-webdav-source',
+    $tool_root.'/nc-webdav-preview',
+    $tool_root.'/nc-webdav-gallery',
+  ) as $generated_root)
+  {
+    $removed_files += bratonien_tools_nc_legacy_remove_tree($generated_root, $data_root);
+  }
+
+  if (defined('PWG_DERIVATIVE_DIR'))
+  {
+    $derivative_root = rtrim(PHPWG_ROOT_PATH.PWG_DERIVATIVE_DIR, '/');
+    foreach (array(
+      $derivative_root.'/_data/bratonien-tools/nc-webdav-source',
+      $derivative_root.'/_data/bratonien-tools/nc-webdav-gallery',
+    ) as $generated_derivative_root)
+    {
+      $removed_files += bratonien_tools_nc_legacy_remove_tree($generated_derivative_root, $derivative_root);
+    }
+  }
+
+  $removed_state_files = bratonien_tools_nc_legacy_remove_state_files($tool_root.'/nc-connector-state');
+
+  if ($ids)
+  {
+    update_category('all');
+    invalidate_user_cache(true);
+  }
+
+  $result = array(
+    'timestamp'=>time(),
+    'removed_image_records'=>count($ids),
+    'removed_generated_entries'=>$removed_files,
+    'removed_state_files'=>$removed_state_files,
+  );
+
+  if (function_exists('conf_update_param'))
+  {
+    conf_update_param('bratonien_nc_legacy_reset_0977', json_encode($result));
+  }
+
+  return $result;
+}

include/nc_productive_ws.inc.php

@@ -18,7 +18,7 @@ function bratonien_tools_register_nc_productive_ws_methods($arr)
         'info' => 'Piwigo storage site to synchronize. Default: 1.',
       ),
     ),
-    'Runs the approved direct Bratonien filesystem synchronization for the NC Connector.',
+    'Synchronizes the NC Connector into the existing Piwigo album hierarchy.',
     null,
     array(
       'admin_only' => true,
@@ -35,6 +35,97 @@ function bratonien_tools_nc_productive_error(&$errors, $path, $type)
   );
 }
 
+function bratonien_tools_nc_relative_path($basedir, $path)
+{
+  $basedir = rtrim(str_replace('\\', '/', (string)$basedir), '/');
+  $path = str_replace('\\', '/', (string)$path);
+  if ($path === $basedir) return '';
+  if (strpos($path, $basedir.'/') !== 0)
+  {
+    throw new RuntimeException('WebDAV-Pfad liegt ausserhalb der Connector-Wurzel: '.$path);
+  }
+  return trim(substr($path, strlen($basedir)), '/');
+}
+
+function bratonien_tools_nc_find_album($parent_id, $dir, $name, $excluded_site_id)
+{
+  $where_parent = $parent_id === null ? 'id_uppercat IS NULL' : 'id_uppercat='.(int)$parent_id;
+  $dir_sql = pwg_db_real_escape_string((string)$dir);
+  $name_sql = pwg_db_real_escape_string((string)$name);
+  $query = '
+SELECT id, dir, name
+  FROM '.CATEGORIES_TABLE.'
+  WHERE '.$where_parent.'
+    AND (
+      dir = \''.$dir_sql.'\'
+      OR LOWER(name) = LOWER(\''.$name_sql.'\')
+    )
+  ORDER BY CASE WHEN dir = \''.$dir_sql.'\' THEN 0 ELSE 1 END, id
+  LIMIT 1
+;';
+  $result = pwg_query($query);
+  if (!pwg_db_num_rows($result)) return null;
+  $row = pwg_db_fetch_assoc($result);
+  return (int)$row['id'];
+}
+
+function bratonien_tools_nc_ensure_album_path($relative_dir, $excluded_site_id, array &$cache, array &$created_ids)
+{
+  $relative_dir = trim((string)$relative_dir, '/');
+  if ($relative_dir === '') return null;
+  if (isset($cache[$relative_dir])) return $cache[$relative_dir];
+
+  $parts = explode('/', $relative_dir);
+  $parent_id = null;
+  $path = '';
+  foreach ($parts as $part)
+  {
+    if ($part === '') continue;
+    $path = $path === '' ? $part : $path.'/'.$part;
+    if (isset($cache[$path]))
+    {
+      $parent_id = $cache[$path];
+      continue;
+    }
+
+    $display_name = str_replace('_', ' ', $part);
+    $album_id = bratonien_tools_nc_find_album($parent_id, $part, $display_name, $excluded_site_id);
+    if ($album_id === null)
+    {
+      $created = create_virtual_category($display_name, $parent_id);
+      if (!is_array($created) || empty($created['id']))
+      {
+        $detail = is_array($created) && !empty($created['error']) ? (string)$created['error'] : 'unbekannter Fehler';
+        throw new RuntimeException('Album "'.$display_name.'" konnte nicht angelegt werden: '.$detail);
+      }
+      $album_id = (int)$created['id'];
+      pwg_query('UPDATE '.CATEGORIES_TABLE." SET status='private' WHERE id=".$album_id.' LIMIT 1');
+      add_permission_on_category(array($album_id), get_admins());
+      $created_ids[] = $album_id;
+    }
+
+    $cache[$path] = $album_id;
+    $parent_id = $album_id;
+  }
+
+  return $parent_id;
+}
+
+function bratonien_tools_nc_managed_images($basedir)
+{
+  $prefix = rtrim((string)$basedir, '/').'/';
+  $escaped = pwg_db_real_escape_string(addcslashes($prefix, '_%\\'));
+  $query = "SELECT id, path FROM ".IMAGES_TABLE." WHERE path LIKE '".$escaped."%' ESCAPE '\\\\'";
+  return simple_hash_from_query($query, 'id', 'path');
+}
+
+function bratonien_tools_nc_remove_storage_categories($site_id)
+{
+  // Bestehende Piwigo-Alben gehoeren nicht automatisch dem Connector.
+  // Ohne eindeutige Connector-Eigentumsmarkierung darf hier nichts geloescht werden.
+  return 0;
+}
+
 function bratonien_tools_ws_nc_sync_productive($params, &$service)
 {
   global $conf, $user;
@@ -42,181 +133,94 @@ function bratonien_tools_ws_nc_sync_productive($params, &$service)
   $piwigo_version = defined('PHPWG_VERSION') ? (string)PHPWG_VERSION : '';
   if ($piwigo_version !== '16.4.0')
   {
-    return new PwgError(
-      409,
-      'Bratonien API synchronization is not approved for Piwigo '.$piwigo_version.'. Use the administrator fallback until this Piwigo version has been verified.'
-    );
+    return new PwgError(409, 'Bratonien API synchronization is not approved for Piwigo '.$piwigo_version.'.');
   }
-
   if (empty($conf['enable_synchronization']))
   {
     return new PwgError(403, 'Piwigo filesystem synchronization is disabled.');
   }
 
   $site_id = isset($params['site_id']) ? (int)$params['site_id'] : 1;
-  if ($site_id < 1)
-  {
-    return new PwgError(400, 'Invalid site_id.');
-  }
+  if ($site_id < 1) return new PwgError(400, 'Invalid site_id.');
 
   include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
   include_once(PHPWG_ROOT_PATH.'admin/site_reader_local.php');
 
-  $query = 'SELECT galleries_url FROM '.SITES_TABLE.' WHERE id = '.$site_id.' LIMIT 1';
-  $result = pwg_query($query);
-  if (!pwg_db_num_rows($result))
-  {
-    return new PwgError(404, 'Piwigo site does not exist.');
-  }
-
+  $result = pwg_query('SELECT galleries_url FROM '.SITES_TABLE.' WHERE id='.$site_id.' LIMIT 1');
+  if (!pwg_db_num_rows($result)) return new PwgError(404, 'Piwigo site does not exist.');
   list($site_url) = pwg_db_fetch_row($result);
-  if (url_is_remote($site_url))
-  {
-    return new PwgError(400, 'Remote Piwigo sites are not supported by this synchronization method.');
-  }
+  if (url_is_remote($site_url)) return new PwgError(400, 'Remote Piwigo sites are not supported.');
 
   $site_reader = new LocalSiteReader($site_url);
-  if (!$site_reader->open())
-  {
-    return new PwgError(500, 'Piwigo could not open the configured local site.');
-  }
+  if (!$site_reader->open()) return new PwgError(500, 'Piwigo could not open the configured local site.');
 
-  list($dbnow) = pwg_db_fetch_row(pwg_query('SELECT NOW()'));
+  $basedir = preg_replace('#/*$#', '', (string)$site_url);
   $errors = array();
   $counts = array(
-    'new_categories' => 0,
-    'del_categories' => 0,
-    'new_elements' => 0,
-    'del_elements' => 0,
-    'upd_elements' => 0,
-    'new_formats' => 0,
-    'del_formats' => 0,
-    'metadata_candidates' => 0,
-    'metadata_updated' => 0,
+    'reused_categories'=>0,
+    'new_categories'=>0,
+    'removed_duplicate_categories'=>0,
+    'new_elements'=>0,
+    'del_elements'=>0,
+    'upd_elements'=>0,
   );
 
   try
   {
-    $query = 'SELECT id, id_uppercat, uppercats, global_rank, status, visible FROM '.CATEGORIES_TABLE.' WHERE dir IS NOT NULL AND site_id = '.$site_id;
-    $db_categories = hash_from_query($query, 'id');
-    $db_fulldirs = get_fulldirs(array_keys($db_categories));
-    $basedir = preg_replace('#/*$#', '', $site_url);
-    $db_fulldirs = array_flip($db_fulldirs);
-    $fs_fulldirs = $site_reader->get_full_directories($basedir);
-
-    $next_rank = array('NULL'=>1);
-    $result = pwg_query('SELECT id FROM '.CATEGORIES_TABLE);
-    while ($row = pwg_db_fetch_assoc($result))
+    list($dbnow) = pwg_db_fetch_row(pwg_query('SELECT NOW()'));
+    $fs_dirs = $site_reader->get_full_directories($basedir);
+    usort($fs_dirs, function($a, $b)
     {
-      $next_rank[$row['id']] = 1;
-    }
-    $result = pwg_query('SELECT id_uppercat, MAX(`rank`)+1 AS next_rank FROM '.CATEGORIES_TABLE.' GROUP BY id_uppercat');
-    while ($row = pwg_db_fetch_assoc($result))
-    {
-      $key = empty($row['id_uppercat']) ? 'NULL' : $row['id_uppercat'];
-      $next_rank[$key] = (int)$row['next_rank'];
-    }
+      return substr_count((string)$a, '/') <=> substr_count((string)$b, '/');
+    });
 
-    $next_id = pwg_db_nextval('id', CATEGORIES_TABLE);
-    $category_inserts = array();
-
-    foreach (array_diff($fs_fulldirs, array_keys($db_fulldirs)) as $fulldir)
+    $album_cache = array();
+    $created_ids = array();
+    $dir_to_album = array();
+    foreach ($fs_dirs as $full_dir)
     {
-      $dir = basename($fulldir);
-      if (!preg_match($conf['sync_chars_regex'], $dir))
+      $relative = bratonien_tools_nc_relative_path($basedir, $full_dir);
+      if ($relative === '') continue;
+      $before = count($created_ids);
+      $album_id = bratonien_tools_nc_ensure_album_path($relative, $site_id, $album_cache, $created_ids);
+      if ($album_id !== null)
       {
-        bratonien_tools_nc_productive_error($errors, $fulldir, 'PWG-UPDATE-1');
-        continue;
+        $dir_to_album[$full_dir] = $album_id;
+        if (count($created_ids) === $before) $counts['reused_categories']++;
       }
-
-      $insert = array(
-        'id' => $next_id++,
-        'dir' => $dir,
-        'name' => str_replace('_', ' ', $dir),
-        'site_id' => $site_id,
-        'commentable' => boolean_to_string($conf['newcat_default_commentable']),
-        'status' => 'private',
-        'visible' => boolean_to_string($conf['newcat_default_visible']),
-      );
-
-      $parent_path = dirname($fulldir);
-      if (isset($db_fulldirs[$parent_path]))
-      {
-        $parent = $db_fulldirs[$parent_path];
-        $insert['id_uppercat'] = $parent;
-        $insert['uppercats'] = $db_categories[$parent]['uppercats'].','.$insert['id'];
-        $insert['rank'] = $next_rank[$parent]++;
-        $insert['global_rank'] = $db_categories[$parent]['global_rank'].'.'.$insert['rank'];
-        if ((string)$db_categories[$parent]['visible'] === 'false')
-        {
-          $insert['visible'] = 'false';
-        }
-      }
-      else
-      {
-        $insert['uppercats'] = (string)$insert['id'];
-        $insert['rank'] = $next_rank['NULL']++;
-        $insert['global_rank'] = (string)$insert['rank'];
-      }
-
-      $category_inserts[] = $insert;
-      $db_categories[$insert['id']] = array(
-        'id' => $insert['id'],
-        'id_uppercat' => $insert['id_uppercat'] ?? null,
-        'uppercats' => $insert['uppercats'],
-        'global_rank' => $insert['global_rank'],
-        'status' => 'private',
-        'visible' => $insert['visible'],
-      );
-      $db_fulldirs[$fulldir] = $insert['id'];
-      $next_rank[$insert['id']] = 1;
-    }
-
-    if ($category_inserts)
-    {
-      mass_inserts(
-        CATEGORIES_TABLE,
-        array('id','dir','name','site_id','id_uppercat','uppercats','commentable','visible','status','rank','global_rank'),
-        $category_inserts
-      );
-      $category_ids = array_map(function ($row) { return (int)$row['id']; }, $category_inserts);
-      pwg_activity('album', $category_ids, 'add', array('sync'=>true));
-      add_permission_on_category($category_ids, get_admins());
-      $counts['new_categories'] = count($category_ids);
-    }
-
-    $to_delete_categories = array();
-    foreach (array_diff(array_keys($db_fulldirs), $fs_fulldirs) as $fulldir)
-    {
-      $to_delete_categories[] = (int)$db_fulldirs[$fulldir];
-      unset($db_fulldirs[$fulldir]);
-    }
-    if ($to_delete_categories)
-    {
-      delete_categories($to_delete_categories);
-      $counts['del_categories'] = count($to_delete_categories);
     }
+    $counts['new_categories'] = count($created_ids);
 
     $fs = $site_reader->get_elements($basedir);
-    $cat_ids = array_diff(array_keys($db_categories), $to_delete_categories);
-    $db_elements = array();
-    if ($cat_ids)
-    {
-      $query = 'SELECT id, path FROM '.IMAGES_TABLE.' WHERE storage_category_id IN ('.implode(',', array_map('intval', $cat_ids)).')';
-      $db_elements = simple_hash_from_query($query, 'id', 'path');
-    }
+    $db_elements = bratonien_tools_nc_managed_images($basedir);
+    $db_by_path = array_flip($db_elements);
+
+    // Nicht-destruktiver Schutz: Bestehende Piwigo-Bilder werden niemals allein
+    // deshalb geloescht, weil sie im aktuellen WebDAV-Scan nicht vorkommen.
+    // Das Entfernen ist erst wieder zulaessig, wenn Connector-Eigentum eindeutig
+    // und verbindungsbezogen gespeichert wird.
 
     $next_element_id = pwg_db_nextval('id', IMAGES_TABLE);
     $image_inserts = array();
     $image_links = array();
-    $format_inserts = array();
-    $new_image_ids = array();
+    $new_ids = array();
+    $all_ids = array();
 
-    foreach (array_diff(array_keys($fs), $db_elements) as $path)
+    foreach ($fs as $path=>$file_info)
     {
       $dirname = dirname($path);
-      if (!isset($db_fulldirs[$dirname]))
+      $relative_dir = bratonien_tools_nc_relative_path($basedir, $dirname);
+      $category_id = null;
+      if ($relative_dir !== '')
       {
+        $category_id = $dir_to_album[$dirname] ?? bratonien_tools_nc_ensure_album_path($relative_dir, $site_id, $album_cache, $created_ids);
+      }
+
+      if (isset($db_by_path[$path]))
+      {
+        // Altbestand niemals umhaengen. Vorhandene Bild-Album-Zuordnungen bleiben
+        // exakt bestehen; der Connector darf nur neue Datensaetze ergaenzen.
+        $all_ids[] = (int)$db_by_path[$path];
         continue;
       }
 
@@ -229,116 +233,42 @@ function bratonien_tools_ws_nc_sync_productive($params, &$service)
 
       $id = $next_element_id++;
       $image_inserts[] = array(
-        'id' => $id,
-        'file' => $filename,
-        'name' => get_name_from_file($filename),
-        'date_available' => $dbnow,
-        'path' => $path,
-        'representative_ext' => $fs[$path]['representative_ext'],
-        'storage_category_id' => $db_fulldirs[$dirname],
-        'added_by' => (int)$user['id'],
+        'id'=>$id,
+        'file'=>$filename,
+        'name'=>get_name_from_file($filename),
+        'date_available'=>$dbnow,
+        'path'=>$path,
+        'representative_ext'=>$file_info['representative_ext'],
+        'storage_category_id'=>null,
+        'added_by'=>(int)$user['id'],
       );
-      $image_links[] = array('image_id'=>$id, 'category_id'=>$db_fulldirs[$dirname]);
-      $new_image_ids[] = $id;
-
-      if (!empty($conf['enable_formats']) && !empty($fs[$path]['formats']))
+      if ($category_id !== null)
       {
-        foreach ($fs[$path]['formats'] as $ext => $filesize)
-        {
-          $format_inserts[] = array('image_id'=>$id, 'ext'=>$ext, 'filesize'=>$filesize);
-        }
+        $image_links[] = array('image_id'=>$id, 'category_id'=>$category_id);
       }
+      $new_ids[] = $id;
+      $all_ids[] = $id;
     }
 
     if ($image_inserts)
     {
       mass_inserts(IMAGES_TABLE, array_keys($image_inserts[0]), $image_inserts);
-      mass_inserts(IMAGE_CATEGORY_TABLE, array_keys($image_links[0]), $image_links);
-      pwg_activity('photo', $new_image_ids, 'add', array('sync'=>true));
-      $counts['new_elements'] = count($image_inserts);
-    }
-    if ($format_inserts)
-    {
-      mass_inserts(IMAGE_FORMAT_TABLE, array_keys($format_inserts[0]), $format_inserts);
-      $counts['new_formats'] += count($format_inserts);
+      if ($image_links) mass_inserts(IMAGE_CATEGORY_TABLE, array_keys($image_links[0]), $image_links);
+      pwg_activity('photo', $new_ids, 'add', array('sync'=>true));
+      $counts['new_elements'] = count($new_ids);
     }
 
-    if (!empty($conf['enable_formats']) && $db_elements)
-    {
-      $db_elements_flip = array_flip($db_elements);
-      $existing_ids = array();
-      foreach (array_intersect_key($fs, $db_elements_flip) as $path => $unused)
-      {
-        $existing_ids[] = (int)$db_elements_flip[$path];
-      }
-
-      if ($existing_ids)
-      {
-        $db_formats = array();
-        $result = pwg_query('SELECT * FROM '.IMAGE_FORMAT_TABLE.' WHERE image_id IN ('.implode(',', $existing_ids).')');
-        while ($row = pwg_db_fetch_assoc($result))
-        {
-          $db_formats[$row['image_id']][$row['ext']] = $row['format_id'];
-        }
-
-        $formats_to_delete = array();
-        $formats_to_insert = array();
-        foreach ($existing_ids as $image_id)
-        {
-          $path = $db_elements[$image_id];
-          $known = $db_formats[$image_id] ?? array();
-          $present = $fs[$path]['formats'] ?? array();
-          foreach (array_diff_key($known, $present) as $format_id)
-          {
-            $formats_to_delete[] = (int)$format_id;
-          }
-          foreach (array_diff_key($present, $known) as $ext => $filesize)
-          {
-            $formats_to_insert[] = array('image_id'=>$image_id, 'ext'=>$ext, 'filesize'=>$filesize);
-          }
-        }
-
-        if ($formats_to_delete)
-        {
-          pwg_query('DELETE FROM '.IMAGE_FORMAT_TABLE.' WHERE format_id IN ('.implode(',', $formats_to_delete).')');
-          $counts['del_formats'] = count($formats_to_delete);
-        }
-        if ($formats_to_insert)
-        {
-          mass_inserts(IMAGE_FORMAT_TABLE, array_keys($formats_to_insert[0]), $formats_to_insert);
-          $counts['new_formats'] += count($formats_to_insert);
-        }
-      }
-    }
-
-    $to_delete_elements = array();
-    foreach (array_diff($db_elements, array_keys($fs)) as $path)
-    {
-      $id = array_search($path, $db_elements, true);
-      if ($id !== false)
-      {
-        $to_delete_elements[] = (int)$id;
-      }
-    }
-    if ($to_delete_elements)
-    {
-      delete_elements($to_delete_elements);
-      $counts['del_elements'] = count($to_delete_elements);
-    }
-
-    update_category('all');
-    update_global_rank();
-
-    $files = get_filelist('', $site_id, true, false);
+    // Bestehende Bilder werden nicht durch den Connector aktualisiert. Nur neu
+    // angelegte Connector-Bilder erhalten die aus der Quelle ermittelten Attribute.
     $updates = array();
-    foreach ($files as $id => $file)
+    foreach ($new_ids as $id)
     {
-      $data = $site_reader->get_element_update_attributes($file['path']);
-      if (!is_array($data))
-      {
-        continue;
-      }
-      $data['id'] = $id;
+      $path_result = pwg_query('SELECT path FROM '.IMAGES_TABLE.' WHERE id='.(int)$id.' LIMIT 1');
+      if (!pwg_db_num_rows($path_result)) continue;
+      list($path) = pwg_db_fetch_row($path_result);
+      $data = $site_reader->get_element_update_attributes($path);
+      if (!is_array($data)) continue;
+      $data['id'] = (int)$id;
       $updates[] = $data;
     }
     if ($updates)
@@ -351,94 +281,25 @@ function bratonien_tools_ws_nc_sync_productive($params, &$service)
     }
     $counts['upd_elements'] = count($updates);
 
-    $metadata_files = get_filelist('', $site_id, true, true);
-    $counts['metadata_candidates'] = count($metadata_files);
-    $metadata_updates = array();
-    $tags_of = array();
-
-    foreach ($metadata_files as $id => $element_infos)
-    {
-      $data = $site_reader->get_element_metadata($element_infos);
-      if (!is_array($data))
-      {
-        bratonien_tools_nc_productive_error($errors, $element_infos['path'], 'PWG-ERROR-NO-FS');
-        continue;
-      }
-
-      $data['date_metadata_update'] = $dbnow;
-      $data['id'] = $id;
-      $metadata_updates[] = $data;
-
-      foreach (array('keywords','tags') as $key)
-      {
-        if (!isset($data[$key]))
-        {
-          continue;
-        }
-        $tags_of[$id] = $tags_of[$id] ?? array();
-        foreach (explode(',', $data[$key]) as $tag_name)
-        {
-          $tags_of[$id][] = tag_id_from_tag_name($tag_name);
-        }
-      }
-    }
-
-    if ($metadata_updates)
-    {
-      mass_updates(
-        IMAGES_TABLE,
-        array(
-          'primary'=>array('id'),
-          'update'=>array_unique(array_merge(
-            array_diff($site_reader->get_metadata_attributes(), array('keywords','tags')),
-            array('date_metadata_update')
-          )),
-        ),
-        $metadata_updates,
-        MASS_UPDATES_SKIP_EMPTY
-      );
-    }
-    if ($tags_of)
-    {
-      set_tags_of($tags_of);
-    }
-    $counts['metadata_updated'] = count($metadata_updates);
-
-    // Mirror Piwigo 16.4.0 Maintenance -> "Update albums informations".
-    // This repairs the derived album hierarchy and counters that the direct
-    // API sync otherwise bypasses when no admin maintenance page is invoked.
     images_integrity();
     categories_integrity();
     update_uppercats();
     update_category('all');
     update_global_rank();
-    invalidate_user_cache(true);
-
-    // Mirror Piwigo 16.4.0 Maintenance -> "Update photos information".
-    // This finalizes physical paths, ratings and derived photo information.
-    images_integrity();
-    update_path();
-    include_once(PHPWG_ROOT_PATH.'include/functions_rate.inc.php');
-    update_rating_score();
     invalidate_user_cache();
-  }
-  catch (Throwable $e)
-  {
-    return new PwgError(500, 'Bratonien direct synchronization failed: '.$e->getMessage());
-  }
 
-  return array(
-    'mode' => 'productive',
-    'engine' => 'bratonien-direct',
-    'approved_piwigo_version' => '16.4.0',
-    'piwigo_version' => $piwigo_version,
-    'site_id' => $site_id,
-    'site_url' => $site_url,
-    'counts' => $counts,
-    'errors' => $errors,
-    'error_count' => count($errors),
-    'database_writes' => true,
-    'username' => isset($user['username']) ? (string)$user['username'] : '',
-    'status' => isset($user['status']) ? (string)$user['status'] : '',
-  );
+    return array(
+      'mode'=>'productive',
+      'piwigo_version'=>$piwigo_version,
+      'site_id'=>$site_id,
+      'site_url'=>$site_url,
+      'counts'=>$counts,
+      'errors'=>$errors,
+      'database_writes'=>array_sum($counts) > 0,
+    );
+  }
+  catch (Throwable $error)
+  {
+    return new PwgError(500, 'Bratonien NC synchronization failed: '.$error->getMessage());
+  }
 }

include/nc_transport.inc.php

@@ -0,0 +1,340 @@
+<?php
+
+function bratonien_tools_nc_transport_host($url)
+{
+  $host = trim((string)parse_url((string)$url, PHP_URL_HOST));
+  if ($host === '') throw new RuntimeException('Die Nextcloud-Adresse enthält keinen gültigen Hostnamen oder keine IP-Adresse.');
+  return trim($host, '[]');
+}
+
+function bratonien_tools_nc_transport_scheme($url)
+{
+  $scheme = strtolower(trim((string)parse_url((string)$url, PHP_URL_SCHEME)));
+  if (!in_array($scheme, array('http','https'), true)) throw new RuntimeException('Nextcloud muss per HTTP oder HTTPS angesprochen werden.');
+  return $scheme;
+}
+
+function bratonien_tools_nc_transport_is_ip($host)
+{
+  return filter_var(trim((string)$host, '[]'), FILTER_VALIDATE_IP) !== false;
+}
+
+function bratonien_tools_nc_transport_public_ip($host)
+{
+  static $cache = array();
+
+  $host = strtolower(trim((string)$host, '[]'));
+  if ($host === '') throw new RuntimeException('Für die Nextcloud-Verbindung fehlt der Hostname.');
+  if (bratonien_tools_nc_transport_is_ip($host)) return $host;
+  if (isset($cache[$host])) return $cache[$host];
+  if (!function_exists('curl_init')) throw new RuntimeException('Der öffentliche DNS-Abgleich benötigt PHP-cURL.');
+
+  $providers = array(
+    array('host'=>'dns.google', 'ips'=>array('8.8.8.8','8.8.4.4'), 'url'=>'https://dns.google/resolve?name='.rawurlencode($host).'&type=A'),
+    array('host'=>'cloudflare-dns.com', 'ips'=>array('1.1.1.1','1.0.0.1'), 'url'=>'https://cloudflare-dns.com/dns-query?name='.rawurlencode($host).'&type=A'),
+  );
+
+  foreach ($providers as $provider)
+  {
+    foreach ($provider['ips'] as $resolver_ip)
+    {
+      $ch = curl_init($provider['url']);
+      $options = array(
+        CURLOPT_RETURNTRANSFER=>true,
+        CURLOPT_FOLLOWLOCATION=>false,
+        CURLOPT_CONNECTTIMEOUT=>5,
+        CURLOPT_TIMEOUT=>10,
+        CURLOPT_HTTPHEADER=>array('Accept: application/dns-json'),
+        CURLOPT_USERAGENT=>'Bratonien-Tools-DNS/0.9.7.1',
+      );
+      if (defined('CURLOPT_RESOLVE'))
+      {
+        $options[CURLOPT_RESOLVE] = array($provider['host'].':443:'.$resolver_ip);
+      }
+      curl_setopt_array($ch, $options);
+      $body = curl_exec($ch);
+      $errno = curl_errno($ch);
+      $status = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);
+      curl_close($ch);
+      if ($body === false || $errno !== 0 || $status < 200 || $status >= 300) continue;
+
+      $decoded = json_decode((string)$body, true);
+      if (!is_array($decoded) || !isset($decoded['Answer']) || !is_array($decoded['Answer'])) continue;
+      foreach ($decoded['Answer'] as $answer)
+      {
+        if ((int)($answer['type'] ?? 0) !== 1) continue;
+        $ip = trim((string)($answer['data'] ?? ''));
+        if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) === false) continue;
+        return $cache[$host] = $ip;
+      }
+    }
+  }
+
+  throw new RuntimeException('Für '.$host.' konnte keine öffentliche IPv4-Adresse ermittelt werden.');
+}
+
+function bratonien_tools_nc_transport_resolve_entry($url)
+{
+  $scheme = bratonien_tools_nc_transport_scheme($url);
+  $host = bratonien_tools_nc_transport_host($url);
+  if (bratonien_tools_nc_transport_is_ip($host)) return null;
+
+  $port = (int)parse_url((string)$url, PHP_URL_PORT);
+  if ($port < 1) $port = $scheme === 'https' ? 443 : 80;
+  $ip = bratonien_tools_nc_transport_public_ip($host);
+  return $host.':'.$port.':'.$ip;
+}
+
+function bratonien_tools_nc_transport_apply_curl(array &$options, $url)
+{
+  $entry = bratonien_tools_nc_transport_resolve_entry($url);
+  if ($entry !== null)
+  {
+    if (!defined('CURLOPT_RESOLVE')) throw new RuntimeException('Diese cURL-Version unterstützt keine direkte Host-zu-IP-Zuordnung.');
+    $options[CURLOPT_RESOLVE] = array($entry);
+  }
+}
+
+function bratonien_tools_nc_transport_http($url, $username = '', $password = '', array $headers = array())
+{
+  if (!function_exists('curl_init')) throw new RuntimeException('Der Server kann Nextcloud derzeit nicht per HTTP prüfen.');
+
+  $ch = curl_init($url);
+  $options = array(
+    CURLOPT_RETURNTRANSFER=>true,
+    CURLOPT_FOLLOWLOCATION=>true,
+    CURLOPT_MAXREDIRS=>3,
+    CURLOPT_CONNECTTIMEOUT=>8,
+    CURLOPT_TIMEOUT=>15,
+    CURLOPT_HTTPHEADER=>array_merge(array('Accept: application/json'), $headers),
+    CURLOPT_USERAGENT=>'Bratonien-Tools-NC-Wizard/0.9.7.1',
+  );
+  bratonien_tools_nc_transport_apply_curl($options, $url);
+
+  if ($username !== '')
+  {
+    $options[CURLOPT_HTTPAUTH] = CURLAUTH_BASIC;
+    $options[CURLOPT_USERPWD] = $username.':'.$password;
+  }
+
+  curl_setopt_array($ch, $options);
+  $body = curl_exec($ch);
+  $errno = curl_errno($ch);
+  $error = curl_error($ch);
+  $status = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);
+  curl_close($ch);
+
+  if ($body === false || $errno !== 0)
+  {
+    throw new RuntimeException('Verbindung fehlgeschlagen'.($error !== '' ? ': '.$error : '.'));
+  }
+
+  return array('status'=>$status, 'body'=>(string)$body);
+}
+
+function bratonien_tools_nc_transport_webdav_list(array $state, $path = '')
+{
+  if (empty($state['scan_ok']) || trim((string)$state['base_url']) === '' || trim((string)$state['username']) === '' || (string)$state['_password'] === '')
+  {
+    throw new RuntimeException('Die Nextcloud-Sitzung des Assistenten ist nicht vollständig.');
+  }
+  if (!function_exists('curl_init')) throw new RuntimeException('cURL ist für die Verzeichnisauswahl nicht verfügbar.');
+
+  $path = trim((string)$path, '/');
+  if ($path !== '' && preg_match('#(^|/)\.\.(/|$)#', $path)) throw new RuntimeException('Ungültiger Verzeichnispfad.');
+
+  $segments = $path === '' ? array() : array_map('rawurlencode', explode('/', $path));
+  $user = rawurlencode((string)$state['username']);
+  $url = rtrim((string)$state['base_url'], '/').'/remote.php/dav/files/'.$user.'/'.implode('/', $segments);
+  if (substr($url, -1) !== '/') $url .= '/';
+
+  $body = '<?xml version="1.0"?><d:propfind xmlns:d="DAV:" xmlns:oc="http://owncloud.org/ns"><d:prop><d:resourcetype/><d:displayname/><oc:fileid/></d:prop></d:propfind>';
+  $ch = curl_init($url);
+  $options = array(
+    CURLOPT_RETURNTRANSFER=>true,
+    CURLOPT_CUSTOMREQUEST=>'PROPFIND',
+    CURLOPT_POSTFIELDS=>$body,
+    CURLOPT_HTTPHEADER=>array('Depth: 1','Content-Type: application/xml; charset=utf-8'),
+    CURLOPT_HTTPAUTH=>CURLAUTH_BASIC,
+    CURLOPT_USERPWD=>(string)$state['username'].':'.(string)$state['_password'],
+    CURLOPT_CONNECTTIMEOUT=>8,
+    CURLOPT_TIMEOUT=>20,
+  );
+  bratonien_tools_nc_transport_apply_curl($options, $url);
+  curl_setopt_array($ch, $options);
+  $response = curl_exec($ch);
+  $errno = curl_errno($ch);
+  $error = curl_error($ch);
+  $status = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);
+  curl_close($ch);
+
+  if ($response === false || $errno !== 0) throw new RuntimeException('Nextcloud-Verzeichnisse konnten nicht geladen werden'.($error !== '' ? ': '.$error : '.'));
+  if ($status === 401 || $status === 403) throw new RuntimeException('Nextcloud hat den Zugriff auf dieses Verzeichnis abgelehnt.');
+  if ($status !== 207) throw new RuntimeException('Nextcloud-Verzeichnisabfrage antwortete mit HTTP '.$status.'.');
+
+  libxml_use_internal_errors(true);
+  $xml = simplexml_load_string((string)$response);
+  if ($xml === false) throw new RuntimeException('Nextcloud hat eine ungültige WebDAV-Antwort geliefert.');
+  $xml->registerXPathNamespace('d', 'DAV:');
+  $xml->registerXPathNamespace('oc', 'http://owncloud.org/ns');
+
+  $children = array();
+  $fileids = array();
+  $current_fileid = 0;
+  $base_path = (string)parse_url($url, PHP_URL_PATH);
+
+  foreach ($xml->xpath('//d:response') as $item)
+  {
+    $item->registerXPathNamespace('d', 'DAV:');
+    $item->registerXPathNamespace('oc', 'http://owncloud.org/ns');
+    $hrefs = $item->xpath('d:href');
+    $collections = $item->xpath('d:propstat/d:prop/d:resourcetype/d:collection');
+    $ids = $item->xpath('d:propstat/d:prop/oc:fileid');
+    if (!$hrefs || !$collections || !$ids) continue;
+
+    $fileid = (int)trim((string)$ids[0]);
+    if ($fileid < 1) continue;
+    $href = rawurldecode((string)$hrefs[0]);
+    $href_path = (string)parse_url($href, PHP_URL_PATH);
+
+    if (rtrim($href_path, '/') === rtrim($base_path, '/'))
+    {
+      $current_fileid = $fileid;
+      continue;
+    }
+
+    $name = basename(rtrim($href_path, '/'));
+    if ($name === '') continue;
+    $child_path = $path === '' ? $name : $path.'/'.$name;
+    $children[$child_path] = $name;
+    $fileids[$child_path] = $fileid;
+  }
+  natcasesort($children);
+
+  if ($current_fileid < 1) throw new RuntimeException('Nextcloud hat für das aktuelle Verzeichnis keine eindeutige Datei-ID geliefert.');
+
+  $parent = '';
+  if ($path !== '')
+  {
+    $parts = explode('/', $path);
+    array_pop($parts);
+    $parent = implode('/', $parts);
+  }
+
+  return array(
+    'current'=>$path,
+    'parent'=>$parent,
+    'children'=>$children,
+    'current_fileid'=>$current_fileid,
+    'fileids'=>$fileids,
+  );
+}
+
+function bratonien_tools_nc_transport_refresh_directory_state(array &$state, $path = null)
+{
+  if ($path === null) $path = (string)($state['directory_path'] ?? '');
+  $listing = bratonien_tools_nc_transport_webdav_list($state, $path);
+  $state['directory_path'] = (string)$listing['current'];
+  $state['directory_parent'] = (string)$listing['parent'];
+  $state['directory_children'] = (array)$listing['children'];
+  $state['directory_current_fileid'] = (int)$listing['current_fileid'];
+  $state['directory_fileids'] = (array)$listing['fileids'];
+  if (!isset($state['directory_selected']) || !is_array($state['directory_selected'])) $state['directory_selected'] = array();
+  if (!isset($state['directory_selected_fileids']) || !is_array($state['directory_selected_fileids'])) $state['directory_selected_fileids'] = array();
+}
+
+function bratonien_tools_nc_transport_wizard_directory_browse()
+{
+  $state = bratonien_tools_nc_wizard_state();
+  if ((int)$state['step'] !== 2 || (string)$state['technical_stage'] !== 'mounts' || empty($state['directory_selection_ready'])) throw new RuntimeException('Die Verzeichnisauswahl ist in diesem Fenster nicht verfügbar.');
+  $path = trim((string)($_POST['nc_wizard_directory_path'] ?? ''), '/');
+  bratonien_tools_nc_transport_refresh_directory_state($state, $path);
+  bratonien_tools_nc_wizard_store($state);
+  return array('message'=>'Verzeichnis geöffnet.');
+}
+
+function bratonien_tools_nc_transport_edit_start()
+{
+  $id = (int)($_POST['connection_id'] ?? 0);
+  $connection = bratonien_tools_nc_connector_connection($id, true);
+  if (!$connection) throw new RuntimeException('Connector-Verbindung wurde nicht gefunden.');
+
+  $config = isset($connection['config']) && is_array($connection['config']) ? $connection['config'] : array();
+  $is_webdav = (string)$connection['adapter'] === 'remote'
+    && (string)($config['source_mode'] ?? '') === 'webdav-placeholder';
+  if (!$is_webdav) return bratonien_tools_nc_connector_edit_start();
+
+  $credentials = bratonien_tools_nc_connector_scoped_secret($connection);
+  $base_url = trim((string)($config['nextcloud_url'] ?? ''));
+  $username = trim((string)($credentials['nextcloud_user'] ?? ''));
+  if ($username === '') $username = trim((string)($config['nextcloud_access_user'] ?? $config['access_user'] ?? ''));
+  $password = (string)($credentials['nextcloud_password'] ?? '');
+
+  $roots = isset($config['roots']) && is_array($config['roots']) ? array_values($config['roots']) : array();
+  $selected = array();
+  $selected_ids = array();
+  foreach ($roots as $root)
+  {
+    $path = trim((string)($root['webdav_path'] ?? ''), '/');
+    $fileid = (int)($root['fileid'] ?? 0);
+    if ($fileid < 1) continue;
+    $selected[] = $path;
+    $selected_ids[$path] = $fileid;
+  }
+
+  $state = bratonien_tools_nc_wizard_state();
+  $state = array_merge($state, array(
+    'editing_connection_id'=>$id,
+    'editing_adapter'=>(string)$connection['adapter'],
+    'editing_mode'=>'update',
+    'connection_name'=>(string)$connection['name'],
+    'host_input'=>$base_url,
+    'base_url'=>$base_url,
+    'username'=>$username,
+    '_password'=>$password,
+    '_fallback_user'=>(string)($credentials['piwigo_user'] ?? ''),
+    '_fallback_password'=>(string)($credentials['piwigo_password'] ?? ''),
+    '_api_key_id'=>(string)($credentials['api_key_id'] ?? ''),
+    '_api_key_secret'=>(string)($credentials['api_key_secret'] ?? ''),
+    'api_status'=>trim((string)($credentials['api_key_id'] ?? '')) !== '' && trim((string)($credentials['api_key_secret'] ?? '')) !== '' ? 'ok' : 'pending',
+    'roots'=>$roots,
+    'directory_selected'=>$selected,
+    'directory_selected_fileids'=>$selected_ids,
+    'source_mode'=>'webdav-placeholder',
+    'transport'=>'webdav',
+  ));
+
+  if ($base_url !== '' && $username !== '' && $password !== '')
+  {
+    $state['step'] = 2;
+    $state['scan_ok'] = true;
+    $state['technical_stage'] = 'mounts';
+    $state['technical_source'] = 'WebDAV';
+    $state['technical_error'] = '';
+    $state['technical_complete'] = false;
+    $state['directory_selection_ready'] = true;
+    $state['directory_path'] = '';
+    $state['directory_parent'] = '';
+    $state['directory_children'] = array();
+    $state['directory_current_fileid'] = 0;
+
+    try
+    {
+      bratonien_tools_nc_transport_refresh_directory_state($state, '');
+    }
+    catch (Throwable $e)
+    {
+      $state['step'] = 1;
+      $state['scan_ok'] = false;
+      $state['technical_error'] = $e->getMessage();
+    }
+  }
+  else
+  {
+    $state['step'] = 1;
+    $state['scan_ok'] = false;
+  }
+
+  bratonien_tools_nc_wizard_store($state);
+  return array('message'=>'Verbindung #'.$id.' wurde zum Bearbeiten geöffnet.');
+}

include/tool_registry.inc.php

@@ -6,19 +6,13 @@ if (!defined('PHPWG_ROOT_PATH'))
 
 if (isset($GLOBALS['template']) && is_object($GLOBALS['template']) && method_exists($GLOBALS['template'], 'func_combine_script'))
 {
-  $script_version = function_exists('bratonien_tools_current_version') ? bratonien_tools_current_version() : '0.9.6.15';
+  $script_version = function_exists('bratonien_tools_current_version') ? bratonien_tools_current_version() : '0.9.7.1';
   $GLOBALS['template']->func_combine_script(array(
     'id'=>'bratonien_nc_connector_edit_v2',
     'path'=>BRATONIEN_TOOLS_PATH.'js/nc_connector_edit_v2.js',
     'load'=>'footer',
     'version'=>$script_version,
   ));
-  $GLOBALS['template']->func_combine_script(array(
-    'id'=>'bratonien_nc_connector_source_ui',
-    'path'=>BRATONIEN_TOOLS_PATH.'js/nc_connector_source_ui.js',
-    'load'=>'footer',
-    'version'=>$script_version,
-  ));
 }
 
 require_once(BRATONIEN_TOOLS_PATH . 'tools/image_cache.inc.php');
@@ -34,7 +28,6 @@ require_once(BRATONIEN_TOOLS_PATH . 'include/album_shares.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/album_lock.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_manage.inc.php');
-require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_takeover.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_auth.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_create_api.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_piwigo_api.inc.php');
@@ -48,6 +41,24 @@ require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_delete_safe.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_webdav.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_wizard_webdav_flow.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_edit.inc.php');
+require_once(BRATONIEN_TOOLS_PATH . 'include/nc_transport.inc.php');
+require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_scheduler.inc.php');
+require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_system.inc.php');
+
+function bratonien_tools_nc_connector_run_now()
+{
+  $connection_id = isset($_POST['connection_id']) ? max(0, (int)$_POST['connection_id']) : 0;
+  if ($connection_id > 0)
+  {
+    $connection = bratonien_tools_nc_connector_connection($connection_id, false);
+    if (!$connection)
+    {
+      throw new RuntimeException('Die ausgewählte Verbindung existiert nicht.');
+    }
+  }
+  $result = bratonien_tools_nc_scheduler_spawn(true, $connection_id);
+  return array('message'=>(string)($result['message'] ?? ($connection_id > 0 ? 'Abgleich wurde gestartet.' : 'Abgleich für alle Verbindungen wurde gestartet.')));
+}
 
 function bratonien_tools_get_tools()
 {
@@ -72,17 +83,16 @@ function bratonien_tools_get_tools()
     'album_share_create' => array('handler' => 'bratonien_tools_create_album_share'),
     'album_share_regenerate_link' => array('handler' => 'bratonien_tools_regenerate_album_share_link'),
     'album_share_revoke' => array('handler' => 'bratonien_tools_revoke_album_share'),
-    'nc_connector_create_local' => array('handler' => 'bratonien_tools_nc_connector_create_local_api_first'),
     'nc_connector_create_webdav_parallel' => array('handler' => 'bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard'),
-    'nc_connector_edit_start' => array('handler' => 'bratonien_tools_nc_connector_edit_start'),
-    'nc_connector_migrate_start' => array('handler' => 'bratonien_tools_nc_connector_migrate_start'),
+    'nc_connector_edit_start' => array('handler' => 'bratonien_tools_nc_transport_edit_start'),
     'nc_connector_update_local' => array('handler' => 'bratonien_tools_nc_connector_update_local_friendly'),
     'nc_connector_delete' => array('handler' => 'bratonien_tools_nc_connector_delete_safe'),
     'nc_connector_update_name' => array('handler' => 'bratonien_tools_nc_connector_update_name'),
     'nc_connector_update_technical' => array('handler' => 'bratonien_tools_nc_connector_update_technical'),
+    'nc_connector_run_now' => array('handler' => 'bratonien_tools_nc_connector_run_now'),
     'nc_connector_wizard_scan' => array('handler' => 'bratonien_tools_nc_wizard_scan_webdav_first'),
     'nc_connector_wizard_save_technical' => array('handler' => 'bratonien_tools_nc_wizard_save_technical_flow'),
-    'nc_connector_wizard_directory_browse' => array('handler' => 'bratonien_tools_nc_wizard_directory_browse'),
+    'nc_connector_wizard_directory_browse' => array('handler' => 'bratonien_tools_nc_transport_wizard_directory_browse'),
     'nc_connector_wizard_directory_add' => array('handler' => 'bratonien_tools_nc_wizard_directory_add'),
     'nc_connector_wizard_directory_remove' => array('handler' => 'bratonien_tools_nc_wizard_directory_remove'),
     'nc_connector_wizard_save_mounts' => array('handler' => 'bratonien_tools_nc_wizard_save_sources_dispatch'),
@@ -92,10 +102,7 @@ function bratonien_tools_get_tools()
     'nc_connector_wizard_finish' => array('handler' => 'bratonien_tools_nc_wizard_finish_dispatch'),
     'nc_connector_wizard_back' => array('handler' => 'bratonien_tools_nc_wizard_back'),
     'nc_connector_wizard_reset' => array('handler' => 'bratonien_tools_nc_wizard_reset'),
-    'nc_connector_import_legacy' => array('handler' => 'bratonien_tools_nc_connector_import_legacy'),
     'nc_connector_verify' => array('handler' => 'bratonien_tools_nc_connector_verify_connection_scoped'),
-    'nc_connector_prepare_takeover' => array('handler' => 'bratonien_tools_nc_connector_prepare_takeover'),
-    'nc_connector_cancel_takeover' => array('handler' => 'bratonien_tools_nc_connector_cancel_takeover'),
     'nc_connector_piwigo_api_test' => array('handler' => 'bratonien_tools_nc_connector_piwigo_api_test'),
     'nc_connector_piwigo_api_delete' => array('handler' => 'bratonien_tools_nc_connector_api_delete'),
     'nc_connector_fallback_save' => array('handler' => 'bratonien_tools_nc_connector_fallback_save_scoped'),

include/watermark_engine.inc.php

@@ -8,12 +8,22 @@ require_once(BRATONIEN_TOOLS_PATH . 'include/watermark_base.inc.php');
 
 function bratonien_tools_watermark_engine_enabled()
 {
+  static $initialized = false;
+  static $enabled = false;
+
+  if ($initialized)
+  {
+    return $enabled;
+  }
+
   $config = bratonien_tools_get_watermark_engine_config();
   $enabled = !empty($config['enabled']);
+  $initialized = true;
 
   // Piwigo recalculates use_watermark for custom derivatives from the native
   // watermark file itself. Therefore an active Bratonien engine must keep the
   // native watermark file empty, not only the stored use_watermark flags false.
+  // This initialization is required only once per PHP request.
   if ($enabled)
   {
     bratonien_tools_disable_piwigo_watermarks();

include/webdav_gallery_runtime.inc.php

@@ -0,0 +1,36 @@
+<?php
+if (!defined('PHPWG_ROOT_PATH'))
+{
+  die('Hacking attempt!');
+}
+
+function bratonien_tools_filter_webdav_gallery_derivative_url($url, $params, $src_image, $rel_url)
+{
+  if (!is_object($src_image) || empty($src_image->id) || empty($src_image->rel_path)) return $url;
+
+  $source_path = str_replace('\\', '/', (string)$src_image->rel_path);
+  if (!preg_match('#/nc-webdav-source/connection-[0-9]+/root-[0-9]+/.+$#', $source_path))
+  {
+    return $url;
+  }
+
+  try
+  {
+    $derivative = new DerivativeImage($params, $src_image);
+    if (!$derivative->same_as_source())
+    {
+      $path = $derivative->get_path();
+      if ($path !== '' && is_file($path) && is_readable($path))
+      {
+        return $url;
+      }
+    }
+  }
+  catch (Throwable $e)
+  {
+    error_log('Bratonien WebDAV gallery derivative lookup #'.(int)$src_image->id.': '.$e->getMessage());
+  }
+
+  $preview_url = bratonien_tools_webdav_image_url((int)$src_image->id, true);
+  return $preview_url ?: $url;
+}

include/webdav_image_runtime.inc.php

@@ -7,6 +7,9 @@ if (!defined('PHPWG_ROOT_PATH'))
 function bratonien_tools_webdav_image_source_info($image_id)
 {
   static $cache = array();
+  static $connection_cache = array();
+  static $mapping_cache = array();
+
   $image_id = (int)$image_id;
   if ($image_id < 1) return null;
   if (array_key_exists($image_id, $cache)) return $cache[$image_id];
@@ -20,12 +23,12 @@ function bratonien_tools_webdav_image_source_info($image_id)
   $absolute = $path;
   if (strpos($absolute, '/') !== 0)
   {
-    $absolute = PHPWG_ROOT_PATH.ltrim(preg_replace('#^\./#', '', $absolute), '/');
+    $absolute = PHPWG_ROOT_PATH.ltrim(preg_replace('#^\\./#', '', $absolute), '/');
   }
   $resolved = realpath($absolute);
   if ($resolved === false) return $cache[$image_id] = null;
 
-  $normalized = str_replace('\\', '/', $resolved);
+  $normalized = str_replace('\\\\', '/', $resolved);
   if (!preg_match('#/nc-webdav-source/connection-([0-9]+)/root-([0-9]+)/(.*)$#', $normalized, $match))
   {
     return $cache[$image_id] = null;
@@ -36,60 +39,82 @@ function bratonien_tools_webdav_image_source_info($image_id)
   $relative_path = trim((string)$match[3], '/');
   if ($relative_path === '') return $cache[$image_id] = null;
 
-  $table = defined('BRATONIEN_TOOLS_NC_CONNECTIONS_TABLE')
-    ? BRATONIEN_TOOLS_NC_CONNECTIONS_TABLE
-    : $GLOBALS['prefixeTable'].'bratonien_tools_nc_connections';
-  $connection_result = pwg_query('SELECT config_json FROM `'.$table.'` WHERE id='.$connection_id.' LIMIT 1');
-  if (!pwg_db_num_rows($connection_result)) return $cache[$image_id] = null;
-  $connection_row = pwg_db_fetch_assoc($connection_result);
-  $config = json_decode((string)$connection_row['config_json'], true);
+  if (!array_key_exists($connection_id, $connection_cache))
+  {
+    $table = defined('BRATONIEN_TOOLS_NC_CONNECTIONS_TABLE')
+      ? BRATONIEN_TOOLS_NC_CONNECTIONS_TABLE
+      : $GLOBALS['prefixeTable'].'bratonien_tools_nc_connections';
+    $connection_result = pwg_query('SELECT config_json FROM `'.$table.'` WHERE id='.$connection_id.' LIMIT 1');
+    if (!pwg_db_num_rows($connection_result))
+    {
+      $connection_cache[$connection_id] = null;
+    }
+    else
+    {
+      $connection_row = pwg_db_fetch_assoc($connection_result);
+      $decoded = json_decode((string)$connection_row['config_json'], true);
+      $connection_cache[$connection_id] = is_array($decoded) ? $decoded : null;
+    }
+  }
+
+  $config = $connection_cache[$connection_id];
   if (!is_array($config) || (string)($config['source_mode'] ?? '') !== 'webdav-placeholder')
   {
     return $cache[$image_id] = null;
   }
 
   $root_path = '';
+  $root_found = false;
   $roots = isset($config['roots']) && is_array($config['roots']) ? $config['roots'] : array();
   foreach ($roots as $root)
   {
     if ((int)($root['fileid'] ?? 0) === $root_fileid)
     {
       $root_path = trim((string)($root['webdav_path'] ?? ''), '/');
+      $root_found = true;
       break;
     }
   }
-  if ($root_path === '') return $cache[$image_id] = null;
+  if (!$root_found) return $cache[$image_id] = null;
 
-  $webdav_path = $root_path.'/'.$relative_path;
+  $root_is_base = $root_path === '';
+  $webdav_path = $root_is_base ? $relative_path : $root_path.'/'.$relative_path;
   $content_type = '';
   $size = 0;
   $etag = '';
 
-  $state_dir = rtrim((string)($config['state_dir'] ?? ''), '/');
-  if ($state_dir !== '')
+  if (!array_key_exists($connection_id, $mapping_cache))
   {
-    $mapping_file = $state_dir.'/webdav-map.json';
-    if (is_readable($mapping_file))
+    $mapping_cache[$connection_id] = array();
+    $state_dir = rtrim((string)($config['state_dir'] ?? ''), '/');
+    if ($state_dir !== '')
     {
-      $mapping = json_decode((string)file_get_contents($mapping_file), true);
-      if (is_array($mapping) && isset($mapping['files']) && is_array($mapping['files']))
+      $mapping_file = $state_dir.'/webdav-map.json';
+      if (is_readable($mapping_file))
       {
-        $entry = $mapping['files'][$resolved] ?? $mapping['files'][$normalized] ?? null;
-        if (is_array($entry) && (string)($entry['kind'] ?? '') === 'file')
+        $mapping = json_decode((string)file_get_contents($mapping_file), true);
+        if (is_array($mapping) && isset($mapping['files']) && is_array($mapping['files']))
         {
-          $webdav_path = trim((string)($entry['webdav_path'] ?? $webdav_path), '/');
-          $content_type = (string)($entry['content_type'] ?? '');
-          $size = (int)($entry['size'] ?? 0);
-          $etag = (string)($entry['etag'] ?? '');
+          $mapping_cache[$connection_id] = $mapping['files'];
         }
       }
     }
   }
 
+  $entry = $mapping_cache[$connection_id][$resolved] ?? $mapping_cache[$connection_id][$normalized] ?? null;
+  if (is_array($entry) && (string)($entry['kind'] ?? '') === 'file')
+  {
+    $webdav_path = trim((string)($entry['webdav_path'] ?? $webdav_path), '/');
+    $content_type = (string)($entry['content_type'] ?? '');
+    $size = (int)($entry['size'] ?? 0);
+    $etag = (string)($entry['etag'] ?? '');
+  }
+
   return $cache[$image_id] = array(
     'image_id'=>$image_id,
     'connection_id'=>$connection_id,
     'webdav_path'=>$webdav_path,
+    'root_is_base'=>$root_is_base,
     'content_type'=>$content_type,
     'size'=>$size,
     'etag'=>$etag,
@@ -412,8 +437,16 @@ function bratonien_tools_filter_webdav_src_url($url, $src_image)
 function bratonien_tools_filter_webdav_derivative_url($url, $params, $src_image, $rel_url)
 {
   if (!is_object($src_image) || empty($src_image->id)) return $url;
-  $info = bratonien_tools_webdav_image_source_info((int)$src_image->id);
-  if (!$info) return $url;
+
+  // Hotpath: Bei einem bereits vorbereiteten WebDAV-Derivat keinerlei
+  // Connection-DB oder Mapping-Datei mehr anfassen. Der reale Quellpfad
+  // reicht aus, um Connector-Bilder sicher zu erkennen.
+  $source_path = $src_image->get_path();
+  $resolved_source = $source_path !== '' ? realpath($source_path) : false;
+  if ($resolved_source === false || !preg_match('#/nc-webdav-source/connection-[0-9]+/root-[0-9]+/#', str_replace('\\\\', '/', $resolved_source)))
+  {
+    return $url;
+  }
 
   try
   {

js/nc_connector_edit_v2.js

@@ -2,48 +2,53 @@
   'use strict';
 
   function ready(callback) {
-    if (document.readyState === 'loading') {
-      document.addEventListener('DOMContentLoaded', function () { window.setTimeout(callback, 0); });
-    } else {
-      window.setTimeout(callback, 0);
-    }
+    if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', callback);
+    else callback();
   }
 
   ready(function () {
     var section = document.getElementById('nc-connector');
     if (!section) return;
 
-    var pwgTokenInput = section.querySelector('input[name="pwg_token"]');
-    var pwgToken = pwgTokenInput ? pwgTokenInput.value : '';
-    var modeKey = 'bratonienNcWizardMode';
+    var tokenInput = section.querySelector('input[name="pwg_token"]');
+    var pwgToken = tokenInput ? tokenInput.value : '';
+
+    var technicalButton = document.getElementById('bratonien-nc-technical-open');
+    if (technicalButton) technicalButton.remove();
+    var technicalCreate = document.getElementById('bratonien-nc-technical-create');
+    if (technicalCreate) technicalCreate.remove();
+
+    var statusHeading = Array.prototype.find.call(section.querySelectorAll('h4'), function (heading) {
+      return heading.textContent.trim() === 'Status';
+    });
+    var statusCard = statusHeading ? statusHeading.closest('.bratonien-card') : null;
+    if (statusCard && pwgToken && !statusCard.querySelector('[data-nc-run-now]')) {
+      var runForm = document.createElement('form');
+      runForm.method = 'post';
+      runForm.className = 'bratonien-actions';
+      runForm.style.marginTop = '1rem';
+      runForm.setAttribute('data-nc-run-now', '1');
+      runForm.innerHTML = '<input type="hidden" name="pwg_token" value="'+escapeHtml(pwgToken)+'">'
+        + '<button class="buttonLike" type="submit" name="bratonien_tool" value="nc_connector_run_now">Jetzt abgleichen</button>';
+      runForm.addEventListener('submit', function () {
+        var button = runForm.querySelector('button');
+        if (button) {
+          button.disabled = true;
+          button.textContent = 'Abgleich wird gestartet …';
+        }
+      });
+      statusCard.appendChild(runForm);
+    }
 
     function escapeHtml(value) {
       return String(value == null ? '' : value).replace(/[&<>"']/g, function (c) {
-        return {'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot',"'":'&#039;'}[c];
+        return {'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#039;'}[c];
       });
     }
 
-    function setMode(value) {
-      try { sessionStorage.setItem(modeKey, value); } catch (e) {}
-    }
-
-    function postForm(label, tool, id, mode) {
-      var form = document.createElement('form');
-      form.method = 'post';
-      form.style.display = 'inline';
-      form.dataset.ncV2Action = tool;
-      form.innerHTML = '<input type="hidden" name="pwg_token" value="'+escapeHtml(pwgToken)+'">'
-        + '<input type="hidden" name="connection_id" value="'+escapeHtml(id)+'">'
-        + '<button class="buttonLike" type="submit" name="bratonien_tool" value="'+escapeHtml(tool)+'">'+escapeHtml(label)+'</button>';
-      if (mode) form.addEventListener('submit', function () { setMode(mode); }, true);
-      return form;
-    }
-
     function loadConnection(id) {
       return fetch('plugins/bratonien_tools/nc-connector-edit-data.php?connection_id='+encodeURIComponent(id)+'&_='+Date.now(), {
-        credentials:'same-origin',
-        cache:'no-store',
-        headers:{'Accept':'application/json'}
+        credentials:'same-origin', cache:'no-store', headers:{'Accept':'application/json'}
       }).then(function (response) {
         return response.json().then(function (data) {
           if (!response.ok) throw new Error(data.error || ('HTTP '+response.status));
@@ -52,6 +57,16 @@
       });
     }
 
+    function createPostForm(label, tool, id) {
+      var form = document.createElement('form');
+      form.method = 'post';
+      form.style.display = 'inline';
+      form.innerHTML = '<input type="hidden" name="pwg_token" value="'+escapeHtml(pwgToken)+'">'
+        + '<input type="hidden" name="connection_id" value="'+escapeHtml(id)+'">'
+        + '<button class="buttonLike" type="submit" name="bratonien_tool" value="'+escapeHtml(tool)+'">'+escapeHtml(label)+'</button>';
+      return form;
+    }
+
     function dialog() {
       var node = document.getElementById('bratonien-nc-connection-edit-v2');
       if (node) return node;
@@ -60,11 +75,11 @@
       node.className = 'bratonien-edit-dialog';
       node.innerHTML = '<div class="bratonien-edit-dialog__body">'
         + '<div style="display:flex;align-items:flex-start;justify-content:space-between;gap:1rem">'
-        + '<div><h4 style="margin:0">Verbindung bearbeiten</h4><p class="bratonien-base-note" style="margin:.35rem 0 0">Alle Daten dieser Verbindung werden hier gepflegt. Eine Migration ist ein eigener Vorgang.</p></div>'
-        + '<button type="button" class="buttonLike" data-edit-v2-close>Schließen</button></div>'
-        + '<div data-edit-v2-content style="margin-top:1rem"></div></div>';
+        + '<div><h4 style="margin:0">Verbindung bearbeiten</h4><p class="bratonien-base-note" style="margin:.35rem 0 0">Die Einstellungen gelten nur für diese Verbindung.</p></div>'
+        + '<button type="button" class="buttonLike" data-edit-close>Schließen</button></div>'
+        + '<div data-edit-content style="margin-top:1rem"></div></div>';
       document.body.appendChild(node);
-      node.querySelector('[data-edit-v2-close]').addEventListener('click', function () { node.close(); });
+      node.querySelector('[data-edit-close]').addEventListener('click', function () { node.close(); });
       node.addEventListener('click', function (event) { if (event.target === node) node.close(); });
       return node;
     }
@@ -78,127 +93,68 @@
         + '<button type="button" class="buttonLike" data-remove-storage>Entfernen</button></div>';
     }
 
-    function clearValidation(form) {
-      [].slice.call(form.querySelectorAll('[aria-invalid="true"]')).forEach(function (field) {
-        field.removeAttribute('aria-invalid');
-        field.style.borderColor = '';
-        field.style.boxShadow = '';
-      });
-      [].slice.call(form.querySelectorAll('[data-edit-v2-field-error]')).forEach(function (node) { node.remove(); });
-      var box = form.querySelector('[data-edit-v2-error-summary]');
-      if (box) box.remove();
+    function showError(form, data) {
+      var old = form.querySelector('[data-edit-error]');
+      if (old) old.remove();
+      var box = document.createElement('div');
+      box.dataset.editError = '1';
+      box.className = 'bratonien-main-cache__warning';
+      box.style.margin = '0 0 1rem';
+      box.textContent = (data && data.message) ? data.message : 'Die Verbindung konnte nicht gespeichert werden.';
+      form.insertBefore(box, form.firstChild);
     }
 
-    function fieldNodes(form, fieldName) {
-      return [].slice.call(form.querySelectorAll('[name="'+fieldName.replace(/"/g, '\\"')+'"]'));
-    }
-
-    function showValidation(form, data) {
-      clearValidation(form);
-      var message = (data && data.message) ? data.message : 'Die Verbindung konnte nicht gespeichert werden.';
-      var summary = document.createElement('div');
-      summary.dataset.editV2ErrorSummary = '1';
-      summary.className = 'bratonien-main-cache__warning';
-      summary.style.margin = '0 0 1rem';
-      summary.style.padding = '.75rem';
-      summary.style.border = '1px solid currentColor';
-      summary.innerHTML = '<strong>Speichern fehlgeschlagen:</strong> '+escapeHtml(message);
-      form.insertBefore(summary, form.firstChild);
-
-      var first = null;
-      var fields = data && Array.isArray(data.fields) ? data.fields : [];
-      fields.forEach(function (fieldName) {
-        fieldNodes(form, fieldName).forEach(function (field) {
-          field.setAttribute('aria-invalid', 'true');
-          field.style.borderColor = '#d65a5a';
-          field.style.boxShadow = '0 0 0 1px #d65a5a';
-          if (!first) first = field;
-          var note = document.createElement('span');
-          note.dataset.editV2FieldError = '1';
-          note.className = 'bratonien-main-cache__warning';
-          note.style.display = 'block';
-          note.style.marginTop = '.25rem';
-          note.textContent = message;
-          field.insertAdjacentElement('afterend', note);
-        });
-      });
-
-      if (first) {
-        first.scrollIntoView({block:'center', behavior:'smooth'});
-        window.setTimeout(function () { first.focus(); }, 150);
-      } else {
-        summary.scrollIntoView({block:'center', behavior:'smooth'});
-      }
-    }
-
-    function submitEditor(form, editDialog) {
-      clearValidation(form);
+    function submitLocal(form, editDialog) {
       if (!form.reportValidity()) return;
-
-      var submit = form.querySelector('button[type="submit"]');
-      if (submit) submit.disabled = true;
-
-      var body = new FormData(form);
+      var button = form.querySelector('button[type="submit"]');
+      if (button) button.disabled = true;
       fetch('plugins/bratonien_tools/nc-connector-edit-save.php', {
-        method:'POST',
-        credentials:'same-origin',
-        cache:'no-store',
-        headers:{'Accept':'application/json'},
-        body:body
+        method:'POST', credentials:'same-origin', cache:'no-store', headers:{'Accept':'application/json'}, body:new FormData(form)
       }).then(function (response) {
         return response.json().then(function (data) {
-          if (!response.ok || !data.ok) {
-            showValidation(form, data);
-            return;
-          }
+          if (!response.ok || !data.ok) { showError(form, data); return; }
           editDialog.close();
           window.location.reload();
         });
       }).catch(function (error) {
-        showValidation(form, {message:error.message || String(error), fields:[]});
+        showError(form, {message:error.message || String(error)});
       }).finally(function () {
-        if (submit) submit.disabled = false;
+        if (button) button.disabled = false;
       });
     }
 
-    function openEditor(id) {
+    function openLocalEditor(id) {
       var editDialog = dialog();
-      var content = editDialog.querySelector('[data-edit-v2-content]');
+      var content = editDialog.querySelector('[data-edit-content]');
       content.innerHTML = '<p class="bratonien-base-note">Verbindung wird geladen …</p>';
       if (typeof editDialog.showModal === 'function') editDialog.showModal();
       else editDialog.setAttribute('open', 'open');
 
       loadConnection(id).then(function (data) {
-        if (data.adapter !== 'local') throw new Error('Diese Ansicht ist nur für die bestehende Legacy-Verbindung vorgesehen.');
+        if (data.adapter !== 'local') throw new Error('Diese Verbindung wird über den WebDAV-Assistenten bearbeitet.');
         var legacy = data.legacy || {};
         var webdav = data.webdav || {};
         var storages = Array.isArray(legacy.storages) ? legacy.storages : [];
         var rows = storages.map(storageRow).join('') || storageRow({});
-        var migrationText = webdav.migration_ready
-          ? '<strong>Bereit.</strong> Nextcloud-Zugang und verbindungseigener Piwigo-API-Key sind vollständig gespeichert.'
-          : '<strong>Noch nicht bereit.</strong> Es fehlen: '+escapeHtml((webdav.migration_missing || []).join(', ') || 'WebDAV-Zugangsdaten')+'.';
 
-        content.innerHTML = '<form method="post" data-edit-v2-form>'
+        content.innerHTML = '<form method="post" data-edit-form>'
           + '<input type="hidden" name="pwg_token" value="'+escapeHtml(pwgToken)+'">'
           + '<input type="hidden" name="connection_id" value="'+escapeHtml(data.id)+'">'
           + '<h5>Verbindung</h5><div class="bratonien-form-grid">'
           + '<label class="bratonien-label">Name</label><input name="connection_name" value="'+escapeHtml(data.name)+'" required>'
           + '</div>'
-          + '<h5 style="margin-top:1.2rem">Nextcloud / WebDAV</h5>'
-          + '<p class="bratonien-base-note">Diese Angaben werden für den neuen WebDAV-Weg benötigt und gehören zu genau dieser Verbindung.</p>'
-          + '<div class="bratonien-form-grid">'
-          + '<label class="bratonien-label">Nextcloud-Adresse</label><input name="nc_nextcloud_url" value="'+escapeHtml(webdav.nextcloud_url || '')+'" placeholder="https://cloud.example.de">'
+          + '<h5 style="margin-top:1.2rem">Nextcloud</h5><div class="bratonien-form-grid">'
+          + '<label class="bratonien-label">Nextcloud-Adresse</label><input name="nc_nextcloud_url" value="'+escapeHtml(webdav.nextcloud_url || '')+'">'
           + '<label class="bratonien-label">Nextcloud-Benutzer</label><input name="nc_nextcloud_user" value="'+escapeHtml(webdav.nextcloud_user || '')+'" autocomplete="username">'
           + '<label class="bratonien-label">Nextcloud-Passwort</label><input name="nc_nextcloud_password" type="password" autocomplete="current-password" placeholder="'+(webdav.has_nextcloud_password ? 'gespeichert – leer = unverändert' : 'noch nicht gespeichert')+'">'
           + '</div>'
-          + '<h5 style="margin-top:1.2rem">Piwigo API dieser Verbindung</h5>'
-          + '<p class="bratonien-base-note">Der API-Key wird verbindungseigen gespeichert und beim Speichern geprüft.</p>'
-          + '<div class="bratonien-form-grid">'
+          + '<h5 style="margin-top:1.2rem">Piwigo-Zugang</h5><div class="bratonien-form-grid">'
           + '<label class="bratonien-label">API-Schlüssel-ID</label><input name="nc_connection_api_key_id" value="'+escapeHtml(webdav.api_key_id || '')+'" autocomplete="off">'
           + '<label class="bratonien-label">API-Geheimnis</label><input name="nc_connection_api_key_secret" type="password" autocomplete="new-password" placeholder="'+(webdav.has_api_key_secret ? 'gespeichert – leer = unverändert' : 'noch nicht gespeichert')+'">'
+          + '<label class="bratonien-label">Fallback-Benutzer</label><input name="nc_fallback_user" value="'+escapeHtml(webdav.fallback_user || '')+'" autocomplete="username">'
+          + '<label class="bratonien-label">Fallback-Passwort</label><input name="nc_fallback_password" type="password" autocomplete="current-password" placeholder="'+(webdav.has_fallback_password ? 'gespeichert – leer = unverändert' : 'noch nicht gespeichert')+'">'
           + '</div>'
-          + '<p class="bratonien-base-note"><strong>WebDAV-Migration:</strong> '+migrationText+'</p>'
-          + '<h5 style="margin-top:1.2rem">Bestehender Legacy-Weg</h5><div class="bratonien-form-grid">'
+          + '<h5 style="margin-top:1.2rem">Lokaler Connector</h5><div class="bratonien-form-grid">'
           + '<label class="bratonien-label">Datenbank-Server</label><input name="nc_host" value="'+escapeHtml(legacy.host)+'" required>'
           + '<label class="bratonien-label">Port</label><input name="nc_port" type="number" min="1" max="65535" value="'+escapeHtml(legacy.port || 5432)+'" required>'
           + '<label class="bratonien-label">Datenbank</label><input name="nc_database" value="'+escapeHtml(legacy.database)+'" required>'
@@ -207,7 +163,7 @@
           + '</div>'
           + '<h5 style="margin-top:1.2rem">Speicherorte</h5><div data-storage-list>'+rows+'</div>'
           + '<button type="button" class="buttonLike" data-add-storage>Speicherort hinzufügen</button>'
-          + '<details style="margin-top:1rem"><summary>Erweiterte Legacy-Einstellungen</summary><div class="bratonien-form-grid" style="margin-top:.75rem">'
+          + '<details style="margin-top:1rem"><summary>Erweiterte Einstellungen</summary><div class="bratonien-form-grid" style="margin-top:.75rem">'
           + '<label class="bratonien-label">Source-View</label><input name="nc_source_view" value="'+escapeHtml(legacy.source_view)+'" required>'
           + '<label class="bratonien-label">Activity-View</label><input name="nc_activity_view" value="'+escapeHtml(legacy.activity_view)+'" required>'
           + '<label class="bratonien-label">Piwigo-Galerieordner</label><input name="nc_gallery_root" value="'+escapeHtml(legacy.gallery_root)+'" required>'
@@ -215,108 +171,64 @@
           + '<label class="bratonien-label">Maximale Wartezeit (Sek.)</label><input name="nc_max_wait_seconds" type="number" min="60" value="'+escapeHtml(legacy.max_wait_seconds)+'">'
           + '<label class="bratonien-label">Vollprüfung nach (Sek.)</label><input name="nc_full_sync_seconds" type="number" min="300" value="'+escapeHtml(legacy.full_sync_seconds)+'">'
           + '</div></details>'
-          + '<div class="bratonien-actions" style="margin-top:1rem"><button class="buttonLike" type="submit">Änderungen prüfen und speichern</button><button class="buttonLike" type="button" data-edit-v2-cancel>Abbrechen</button></div>'
+          + '<div class="bratonien-actions" style="margin-top:1rem"><button class="buttonLike" type="submit">Änderungen prüfen und speichern</button><button class="buttonLike" type="button" data-cancel>Abbrechen</button></div>'
           + '</form>';
 
-        var form = content.querySelector('[data-edit-v2-form]');
-        form.querySelector('[data-edit-v2-cancel]').addEventListener('click', function () { editDialog.close(); });
+        var form = content.querySelector('[data-edit-form]');
+        form.querySelector('[data-cancel]').addEventListener('click', function () { editDialog.close(); });
         form.querySelector('[data-add-storage]').addEventListener('click', function () {
           form.querySelector('[data-storage-list]').insertAdjacentHTML('beforeend', storageRow({}));
         });
         form.addEventListener('click', function (event) {
           var remove = event.target.closest('[data-remove-storage]');
-          if (!remove) return;
-          var row = remove.closest('[data-storage-row]');
-          if (row) row.remove();
+          if (remove) {
+            var row = remove.closest('[data-storage-row]');
+            if (row) row.remove();
+          }
         });
         form.addEventListener('submit', function (event) {
           event.preventDefault();
-          event.stopPropagation();
-          submitEditor(form, editDialog);
+          submitLocal(form, editDialog);
         });
       }).catch(function (error) {
         content.innerHTML = '<p class="bratonien-main-cache__warning"><strong>Bearbeiten nicht möglich:</strong> '+escapeHtml(error.message || String(error))+'</p>';
       });
     }
 
-    function rebuildLocalActions(deleteForm, id, connectionData) {
-      var actions = deleteForm.parentElement;
-      if (!actions) return;
-
-      [].slice.call(actions.querySelectorAll('form')).forEach(function (form) {
-        var migrate = form.querySelector('button[value="nc_connector_migrate_start"]');
-        var editStart = form.querySelector('button[value="nc_connector_edit_start"]');
-        if (migrate || editStart) form.remove();
-      });
-      [].slice.call(actions.children).forEach(function (child) {
-        if (child.tagName === 'BUTTON' && (child.textContent || '').trim() === 'Bearbeiten') child.remove();
-        if (child.dataset && child.dataset.ncMigrationInfo) child.remove();
-      });
-
-      var edit = document.createElement('button');
-      edit.type = 'button';
-      edit.className = 'buttonLike';
-      edit.textContent = 'Bearbeiten';
-      edit.addEventListener('click', function () { openEditor(id); });
-      actions.insertBefore(edit, deleteForm);
-
-      var info = document.createElement('span');
-      info.dataset.ncMigrationInfo = '1';
-      info.className = 'bratonien-base-note';
-      info.textContent = 'WebDAV-Migration wird geprüft …';
-      actions.insertBefore(info, deleteForm);
-
-      var dataPromise = connectionData ? Promise.resolve(connectionData) : loadConnection(id);
-      dataPromise.then(function (data) {
-        var webdav = data.webdav || {};
-        if (webdav.migration_ready) {
-          info.remove();
-          actions.insertBefore(postForm('Auf WebDAV migrieren', 'nc_connector_migrate_start', id, 'migrate'), deleteForm);
-        } else {
-          var missing = (webdav.migration_missing || []).join(', ');
-          info.textContent = 'WebDAV-Migration noch nicht bereit: '+(missing || 'Zugangsdaten fehlen')+'. Zuerst „Bearbeiten“.';
-        }
-      }).catch(function (error) {
-        info.textContent = 'WebDAV-Migration kann nicht geprüft werden: '+(error.message || String(error));
-      });
-    }
-
-    function rebuildRemoteActions(deleteForm, id) {
-      var actions = deleteForm.parentElement;
-      if (!actions) return;
-      [].slice.call(actions.querySelectorAll('form')).forEach(function (form) {
-        var oldEdit = form.querySelector('button[value="nc_connector_edit_start"]');
-        var oldMigrate = form.querySelector('button[value="nc_connector_migrate_start"]');
-        if (oldEdit || oldMigrate) form.remove();
-      });
-      [].slice.call(actions.children).forEach(function (child) {
-        if (child.tagName === 'BUTTON' && (child.textContent || '').trim() === 'Bearbeiten') child.remove();
-        if (child.dataset && child.dataset.ncMigrationInfo) child.remove();
-      });
-      actions.insertBefore(postForm('Bearbeiten', 'nc_connector_edit_start', id, 'edit'), deleteForm);
-    }
-
     [].slice.call(section.querySelectorAll('button[value="nc_connector_edit_start"]')).forEach(function (button) {
       var form = button.closest('form');
       if (form) form.remove();
     });
 
+    [].slice.call(section.querySelectorAll('button[value="nc_connector_migrate_start"]')).forEach(function (button) {
+      var form = button.closest('form');
+      if (form) form.remove();
+    });
+
     [].slice.call(section.querySelectorAll('button[value="nc_connector_delete"]')).forEach(function (deleteButton) {
       var deleteForm = deleteButton.closest('form');
-      if (!deleteForm) return;
+      if (!deleteForm || !deleteForm.parentElement) return;
       var idInput = deleteForm.querySelector('input[name="connection_id"]');
       if (!idInput) return;
       var id = idInput.value;
+      var actions = deleteForm.parentElement;
 
       loadConnection(id).then(function (data) {
-        if (data.adapter === 'local') rebuildLocalActions(deleteForm, id, data);
-        else rebuildRemoteActions(deleteForm, id);
+        var edit;
+        if (data.adapter === 'local') {
+          edit = document.createElement('button');
+          edit.type = 'button';
+          edit.className = 'buttonLike';
+          edit.textContent = 'Bearbeiten';
+          edit.addEventListener('click', function () { openLocalEditor(id); });
+        } else {
+          edit = createPostForm('Bearbeiten', 'nc_connector_edit_start', id);
+        }
+        actions.insertBefore(edit, deleteForm);
       }).catch(function (error) {
-        var actions = deleteForm.parentElement;
-        if (!actions) return;
         var info = document.createElement('span');
         info.className = 'bratonien-main-cache__warning';
-        info.textContent = 'Verbindungstyp konnte nicht geladen werden: '+(error.message || String(error));
+        info.textContent = 'Verbindung konnte nicht geladen werden: '+(error.message || String(error));
         actions.insertBefore(info, deleteForm);
       });
     });

js/nc_connector_source_ui.js

@@ -1,217 +0,0 @@
-(function () {
-  'use strict';
-
-  function escapeHtml(value) {
-    return String(value == null ? '' : value).replace(/[&<>"']/g, function (c) {
-      return {'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#039;'}[c];
-    });
-  }
-
-  function fieldNodes(form, fieldName) {
-    return [].slice.call(form.querySelectorAll('[name="'+fieldName.replace(/"/g, '\\"')+'"]'));
-  }
-
-  function clearPickerErrors(form) {
-    [].slice.call(form.querySelectorAll('[data-source-picker-error]')).forEach(function (node) { node.remove(); });
-    [].slice.call(form.querySelectorAll('[data-source-picker-invalid="1"]')).forEach(function (field) {
-      field.removeAttribute('data-source-picker-invalid');
-      if (field.getAttribute('aria-invalid') === 'true') field.removeAttribute('aria-invalid');
-      field.style.borderColor = '';
-      field.style.boxShadow = '';
-    });
-  }
-
-  function showPickerError(form, data) {
-    clearPickerErrors(form);
-    var message = data && data.message ? data.message : 'Die Nextcloud-Ordnerauswahl konnte nicht gestartet werden.';
-    var fields = data && Array.isArray(data.fields) ? data.fields : [];
-
-    var summary = document.createElement('div');
-    summary.dataset.sourcePickerError = '1';
-    summary.className = 'bratonien-main-cache__warning';
-    summary.style.margin = '0 0 1rem';
-    summary.style.padding = '.75rem';
-    summary.style.border = '1px solid currentColor';
-    summary.innerHTML = '<strong>Ordnerauswahl nicht möglich:</strong> '+escapeHtml(message);
-    form.insertBefore(summary, form.firstChild);
-
-    var first = null;
-    fields.forEach(function (fieldName) {
-      fieldNodes(form, fieldName).forEach(function (field) {
-        field.dataset.sourcePickerInvalid = '1';
-        field.setAttribute('aria-invalid', 'true');
-        field.style.borderColor = '#d65a5a';
-        field.style.boxShadow = '0 0 0 1px #d65a5a';
-        if (!first) first = field;
-      });
-    });
-
-    if (first) {
-      first.scrollIntoView({block:'center', behavior:'smooth'});
-      window.setTimeout(function () { first.focus(); }, 150);
-    } else {
-      summary.scrollIntoView({block:'center', behavior:'smooth'});
-    }
-  }
-
-  function jsonResponse(response) {
-    return response.json().then(function (data) {
-      if (!response.ok || !data.ok) throw data;
-      return data;
-    });
-  }
-
-  function startSourcePicker(form, button) {
-    clearPickerErrors(form);
-    if (!form.reportValidity()) return;
-
-    button.disabled = true;
-    var originalText = button.textContent;
-    button.textContent = 'Verbindung prüfen …';
-
-    var saveBody = new FormData(form);
-    fetch('plugins/bratonien_tools/nc-connector-edit-save.php', {
-      method:'POST',
-      credentials:'same-origin',
-      cache:'no-store',
-      headers:{'Accept':'application/json'},
-      body:saveBody
-    })
-      .then(jsonResponse)
-      .then(function () {
-        button.textContent = 'Nextcloud-Ordner laden …';
-        var pickerBody = new FormData();
-        var token = form.querySelector('input[name="pwg_token"]');
-        var id = form.querySelector('input[name="connection_id"]');
-        pickerBody.append('pwg_token', token ? token.value : '');
-        pickerBody.append('connection_id', id ? id.value : '');
-        return fetch('plugins/bratonien_tools/nc-connector-source-picker-start.php', {
-          method:'POST',
-          credentials:'same-origin',
-          cache:'no-store',
-          headers:{'Accept':'application/json'},
-          body:pickerBody
-        }).then(jsonResponse);
-      })
-      .then(function () {
-        try {
-          sessionStorage.setItem('bratonienNcWizardMode', 'migrate');
-          sessionStorage.setItem('bratonienNcWizardOpen', '1');
-        } catch (e) {}
-        window.location.reload();
-      })
-      .catch(function (error) {
-        showPickerError(form, error && typeof error === 'object' ? error : {message:String(error), fields:[]});
-        button.disabled = false;
-        button.textContent = originalText;
-      });
-  }
-
-  function enhanceMigrationButtons(root) {
-    [].slice.call(root.querySelectorAll('button[value="nc_connector_migrate_start"]')).forEach(function (button) {
-      button.textContent = 'Nextcloud-Ordner auswählen & migrieren';
-      button.title = 'Die WebDAV-Quelle wird im Nextcloud-Ordnerbrowser ausgewählt. Der bestehende SMB-/Legacy-Speicher wird nicht als WebDAV-Quelle übernommen.';
-    });
-  }
-
-  function enhanceEditor(root) {
-    var form = root.querySelector('[data-edit-v2-form]');
-    if (!form || form.dataset.sourceUiEnhanced === '1') return;
-    form.dataset.sourceUiEnhanced = '1';
-
-    var headings = [].slice.call(form.querySelectorAll('h5'));
-    var webdavHeading = headings.find(function (node) {
-      return (node.textContent || '').trim() === 'Nextcloud / WebDAV';
-    });
-    var legacyHeading = headings.find(function (node) {
-      return (node.textContent || '').trim() === 'Bestehender Legacy-Weg';
-    });
-    var storageHeading = headings.find(function (node) {
-      return (node.textContent || '').trim() === 'Speicherorte';
-    });
-    var storageList = form.querySelector('[data-storage-list]');
-    var addStorage = form.querySelector('[data-add-storage]');
-
-    if (webdavHeading && !form.querySelector('[data-webdav-source-picker]')) {
-      var webdavGrid = webdavHeading.nextElementSibling;
-      while (webdavGrid && !webdavGrid.classList.contains('bratonien-form-grid')) webdavGrid = webdavGrid.nextElementSibling;
-      if (webdavGrid) {
-        var picker = document.createElement('div');
-        picker.dataset.webdavSourcePicker = '1';
-        picker.style.margin = '.8rem 0 1rem';
-        picker.innerHTML = '<p class="bratonien-base-note" style="margin:.25rem 0 .5rem"><strong>WebDAV-Quelle:</strong> Du musst keinen Pfad kennen. Die Ordner des oben eingetragenen Nextcloud-Benutzers werden automatisch geladen und können anschließend ausgewählt werden.</p>';
-        var button = document.createElement('button');
-        button.type = 'button';
-        button.className = 'buttonLike';
-        button.textContent = 'Nextcloud-Ordner automatisch auswählen';
-        button.addEventListener('click', function () { startSourcePicker(form, button); });
-        picker.appendChild(button);
-        webdavGrid.insertAdjacentElement('afterend', picker);
-      }
-    }
-
-    if (legacyHeading && !form.querySelector('[data-webdav-source-note]')) {
-      var note = document.createElement('p');
-      note.dataset.webdavSourceNote = '1';
-      note.className = 'bratonien-main-cache__warning';
-      note.innerHTML = '<strong>Wichtig:</strong> Der folgende SMB-/lokale Speicher gehört ausschließlich zum bisherigen Legacy-Fallback. Er wird <strong>nicht</strong> als WebDAV-Quelle übernommen.';
-      legacyHeading.insertAdjacentElement('beforebegin', note);
-    }
-
-    if (storageHeading && storageList && addStorage) {
-      storageHeading.textContent = 'Legacy-Speicher (nur Fallback)';
-
-      var details = document.createElement('details');
-      details.dataset.legacyStorageTechnical = '1';
-      details.style.marginTop = '.75rem';
-      var summary = document.createElement('summary');
-      summary.textContent = 'Technische Legacy-Speicherzuordnung bearbeiten';
-      details.appendChild(summary);
-
-      var info = document.createElement('p');
-      info.className = 'bratonien-base-note';
-      info.textContent = 'Diese Felder betreffen nur den alten Fallback-Weg. Für WebDAV werden keine SMB-Adressen oder lokalen Mount-Pfade eingegeben.';
-      details.appendChild(info);
-
-      storageHeading.insertAdjacentElement('beforebegin', details);
-      details.appendChild(storageHeading);
-      details.appendChild(storageList);
-      details.appendChild(addStorage);
-
-      addStorage.textContent = 'Legacy-Speicher manuell hinzufügen';
-      addStorage.title = 'Nur für den alten Legacy-Fallback. WebDAV-Ordner werden im Nextcloud-Ordnerbrowser ausgewählt.';
-    }
-  }
-
-  function enhance(root) {
-    if (!root || root.nodeType !== 1) return;
-    enhanceMigrationButtons(root);
-    if (root.matches && root.matches('#bratonien-nc-connection-edit-v2')) enhanceEditor(root);
-    var dialog = root.querySelector ? root.querySelector('#bratonien-nc-connection-edit-v2') : null;
-    if (dialog) enhanceEditor(dialog);
-  }
-
-  function start() {
-    var section = document.getElementById('nc-connector');
-    if (!section) return;
-
-    enhance(section);
-    enhanceMigrationButtons(document);
-
-    var observer = new MutationObserver(function (mutations) {
-      mutations.forEach(function (mutation) {
-        [].slice.call(mutation.addedNodes || []).forEach(function (node) {
-          if (node && node.nodeType === 1) enhance(node);
-        });
-      });
-      var dialog = document.getElementById('bratonien-nc-connection-edit-v2');
-      if (dialog) enhanceEditor(dialog);
-      enhanceMigrationButtons(document);
-    });
-
-    observer.observe(document.body, {childList:true, subtree:true});
-  }
-
-  if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', start);
-  else start();
-})();

main.inc.php

@@ -1,7 +1,7 @@
 <?php
 /*
 Plugin Name: Bratonien Tools
-Version: 0.9.6.17
+Version: 0.9.7.8
 Description: Erweiterbare Administrationswerkzeuge fuer die Bratonien-Piwigo-Installation.
 Plugin URI: https://github.com/Terranom674/Piwigo_Bratonien_Tools
 Author: Bratonien
@@ -17,6 +17,7 @@ define('BRATONIEN_TOOLS_PATH', PHPWG_PLUGINS_PATH . BRATONIEN_TOOLS_ID . '/');
 
 require_once(BRATONIEN_TOOLS_PATH . 'include/watermark_runtime.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/webdav_image_runtime.inc.php');
+require_once(BRATONIEN_TOOLS_PATH . 'include/webdav_gallery_runtime.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/public_selection.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/picture_navigation.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/batch_titles.inc.php');
@@ -24,11 +25,12 @@ require_once(BRATONIEN_TOOLS_PATH . 'include/album_shares.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_ws.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_orphan_ws.inc.php');
 require_once(BRATONIEN_TOOLS_PATH . 'include/nc_productive_ws.inc.php');
+require_once(BRATONIEN_TOOLS_PATH . 'include/nc_connector_scheduler.inc.php');
 
 add_event_handler('get_admin_plugin_menu_links', 'bratonien_tools_admin_menu');
 add_event_handler('get_derivative_url', 'bratonien_tools_filter_derivative_url', EVENT_HANDLER_PRIORITY_NEUTRAL, 4);
 add_event_handler('get_src_image_url', 'bratonien_tools_filter_webdav_src_url', EVENT_HANDLER_PRIORITY_NEUTRAL + 50, 2);
-add_event_handler('get_derivative_url', 'bratonien_tools_filter_webdav_derivative_url', EVENT_HANDLER_PRIORITY_NEUTRAL + 50, 4);
+add_event_handler('get_derivative_url', 'bratonien_tools_filter_webdav_gallery_derivative_url', EVENT_HANDLER_PRIORITY_NEUTRAL + 50, 4);
 add_event_handler('loc_end_element_set_global', 'bratonien_tools_batch_titles_register_action');
 add_event_handler('element_set_global_action', 'bratonien_tools_batch_titles_apply', EVENT_HANDLER_PRIORITY_NEUTRAL, 2);
 add_event_handler('init', 'bratonien_tools_prepare_connector_private_import', EVENT_HANDLER_PRIORITY_NEUTRAL - 30);

maintain.class.php

@@ -8,6 +8,8 @@ require_once(dirname(__FILE__) . '/include/album_shares.inc.php');
 require_once(dirname(__FILE__) . '/include/database.class.php');
 require_once(dirname(__FILE__) . '/tools/watermark_profiles.inc.php');
 require_once(dirname(__FILE__) . '/include/dependencies.inc.php');
+require_once(dirname(__FILE__) . '/include/nc_connector_scheduler.inc.php');
+require_once(dirname(__FILE__) . '/include/nc_legacy_reset.inc.php');
 
 class bratonien_tools_maintain extends PluginMaintain
 {
@@ -18,9 +20,14 @@ class bratonien_tools_maintain extends PluginMaintain
 
     $dependency_messages = array();
     bratonien_tools_ensure_dependencies($dependency_messages);
+    if (!bratonien_tools_nc_scheduler_install())
+    {
+      $dependency_messages[] = 'Der native NC-Scheduler konnte sein Piwigo-Laufzeitverzeichnis nicht anlegen.';
+    }
 
     if (function_exists('conf_update_param'))
     {
+      conf_update_param('bratonien_nc_scheduler_interval', 60);
       conf_update_param('bratonien_dependency_status', json_encode(array(
         'checked_at' => time(),
         'messages' => $dependency_messages,
@@ -45,6 +52,18 @@ class bratonien_tools_maintain extends PluginMaintain
   public function update($old_version, $new_version, &$errors = array())
   {
     $this->prepare($errors);
+
+    if (version_compare((string)$old_version, '0.9.7.7', '<') && version_compare((string)$new_version, '0.9.7.7', '>='))
+    {
+      try
+      {
+        bratonien_tools_nc_reset_legacy_imports();
+      }
+      catch (Throwable $e)
+      {
+        $errors[] = 'Connector-Altbestand konnte nicht vollständig bereinigt werden: '.$e->getMessage();
+      }
+    }
   }
 
   public function uninstall()

nc-connector-edit-data.php

@@ -27,7 +27,6 @@ if (!function_exists('is_admin') || !is_admin())
 require_once(BRATONIEN_TOOLS_PATH.'include/nc_connector.inc.php');
 require_once(BRATONIEN_TOOLS_PATH.'include/nc_connector_manage.inc.php');
 require_once(BRATONIEN_TOOLS_PATH.'include/nc_connector_connection_scope.inc.php');
-require_once(BRATONIEN_TOOLS_PATH.'include/nc_connector_edit.inc.php');
 
 $id = (int)($_GET['connection_id'] ?? 0);
 $connection = bratonien_tools_nc_connector_connection($id, true);
@@ -40,19 +39,13 @@ if (!$connection)
 
 $config = isset($connection['config']) && is_array($connection['config']) ? $connection['config'] : array();
 $credentials = array();
-$migration = array('ready'=>false, 'missing'=>array());
 try
 {
   $credentials = bratonien_tools_nc_connector_scoped_secret($connection);
-  if ((string)$connection['adapter'] === 'local')
-  {
-    $migration = bratonien_tools_nc_connector_migration_state($connection);
-  }
 }
 catch (Throwable $e)
 {
   $credentials = array();
-  $migration = array('ready'=>false, 'missing'=>array('gespeicherte Zugangsdaten konnten nicht gelesen werden'));
 }
 
 $storages = array();
@@ -92,8 +85,8 @@ $payload = array(
     'has_nextcloud_password'=>(string)($credentials['nextcloud_password'] ?? '') !== '',
     'api_key_id'=>(string)($credentials['api_key_id'] ?? ''),
     'has_api_key_secret'=>trim((string)($credentials['api_key_secret'] ?? '')) !== '',
-    'migration_ready'=>!empty($migration['ready']),
-    'migration_missing'=>array_values((array)($migration['missing'] ?? array())),
+    'fallback_user'=>(string)($credentials['piwigo_user'] ?? ''),
+    'has_fallback_password'=>(string)($credentials['piwigo_password'] ?? '') !== '',
   ),
 );
 

nc-connector-edit-save.php

@@ -258,7 +258,45 @@ try
     }
   }
 
+  $fallback_user = trim((string)($_POST['nc_fallback_user'] ?? ($credentials['piwigo_user'] ?? '')));
+  $submitted_fallback_password = (string)($_POST['nc_fallback_password'] ?? '');
+  $fallback_password = $submitted_fallback_password !== '' ? $submitted_fallback_password : (string)($credentials['piwigo_password'] ?? '');
+  if (($fallback_user === '') !== ($fallback_password === ''))
+  {
+    bratonien_tools_nc_edit_fail(
+      'Fallback-Benutzer und Fallback-Passwort müssen gemeinsam vollständig sein.',
+      array('nc_fallback_user','nc_fallback_password'),
+      'Piwigo-Fallback'
+    );
+  }
+  if ($fallback_user !== '')
+  {
+    try
+    {
+      bratonien_tools_nc_connector_validate_fallback_credentials($fallback_user, $fallback_password);
+    }
+    catch (Throwable $e)
+    {
+      bratonien_tools_nc_edit_fail(
+        'Der Piwigo-Fallback wurde abgelehnt: '.$e->getMessage(),
+        array('nc_fallback_user','nc_fallback_password'),
+        'Piwigo-Fallback'
+      );
+    }
+  }
+
   $result = bratonien_tools_nc_connector_update_local_friendly();
+
+  if (array_key_exists('nc_fallback_user', $_POST) || array_key_exists('nc_fallback_password', $_POST))
+  {
+    $updated = bratonien_tools_nc_connector_connection($id, true);
+    if (!$updated) throw new RuntimeException('Die Verbindung konnte nach dem Speichern nicht erneut geladen werden.');
+    $updated_credentials = bratonien_tools_nc_connector_scoped_secret($updated);
+    $updated_credentials['piwigo_user'] = $fallback_user;
+    $updated_credentials['piwigo_password'] = $fallback_password;
+    bratonien_tools_nc_connector_store_scoped_secret($id, $updated, $updated_credentials);
+  }
+
   bratonien_tools_nc_edit_json(200, array(
     'ok'=>true,
     'message'=>(string)($result['message'] ?? 'Verbindung wurde gespeichert.'),
@@ -302,6 +340,12 @@ catch (Throwable $e)
     $add('nc_connection_api_key_id');
     $add('nc_connection_api_key_secret');
   }
+  if (stripos($message, 'Fallback') !== false)
+  {
+    $stage = 'Piwigo-Fallback';
+    $add('nc_fallback_user');
+    $add('nc_fallback_password');
+  }
 
   bratonien_tools_nc_edit_fail(
     $message,

runtime/build-webdav-media.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+CONFIG_FILE="${PIWIGO_CONFIG:-}"
+[[ -n "$CONFIG_FILE" && -r "$CONFIG_FILE" ]] || { echo "WebDAV-Konfiguration fehlt: ${CONFIG_FILE:-<leer>}" >&2; exit 1; }
+
+# shellcheck source=/dev/null
+source "$CONFIG_FILE"
+
+: "${PIWIGO_ROOT:?PIWIGO_ROOT fehlt}"
+: "${CONNECTION_ID:?CONNECTION_ID fehlt}"
+: "${WEBDAV_BASE_URL:?WEBDAV_BASE_URL fehlt}"
+: "${WEBDAV_USER:?WEBDAV_USER fehlt}"
+: "${WEBDAV_PASSWORD_FILE:?WEBDAV_PASSWORD_FILE fehlt}"
+: "${WEBDAV_MAPPING_FILE:?WEBDAV_MAPPING_FILE fehlt}"
+: "${STATE_DIR:?STATE_DIR fehlt}"
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+LOCK_FILE="$STATE_DIR/webdav-media.lock"
+mkdir -p -- "$STATE_DIR"
+exec 9>"$LOCK_FILE"
+flock -n 9 || exit 0
+
+PREVIEW_CACHE="$PIWIGO_ROOT/_data/bratonien-tools/nc-webdav-preview/connection-$CONNECTION_ID"
+
+php "$SCRIPT_DIR/lib/precache-webdav-previews.php" \
+    --mapping="$WEBDAV_MAPPING_FILE" \
+    --base-url="$WEBDAV_BASE_URL" \
+    --user="$WEBDAV_USER" \
+    --password-file="$WEBDAV_PASSWORD_FILE" \
+    --cache-dir="$PREVIEW_CACHE"
+
+php "$SCRIPT_DIR/lib/build-webdav-derivatives.php" \
+    --piwigo-root="$PIWIGO_ROOT" \
+    --connection-id="$CONNECTION_ID"

runtime/lib/build-webdav-derivatives.php

@@ -6,7 +6,7 @@ if (PHP_SAPI !== 'cli')
   exit(1);
 }
 
-const BRATONIEN_WEBDAV_DERIVATIVE_BUILDER_VERSION = '0.9.6.1';
+const BRATONIEN_WEBDAV_DERIVATIVE_BUILDER_VERSION = '0.9.7.8';
 
 $options = getopt('', array('piwigo-root:', 'connection-id:'));
 $piwigo_root = rtrim((string)($options['piwigo-root'] ?? ''), '/');
@@ -46,20 +46,84 @@ if (!function_exists('bratonien_tools_webdav_image_source_info') || !function_ex
   exit(1);
 }
 
+function bratonien_tools_webdav_modus_config()
+{
+  global $conf;
+
+  $modus = $conf['modus_theme'] ?? array();
+  if (is_string($modus) && $modus !== '')
+  {
+    $decoded = @unserialize($modus);
+    if (is_array($decoded)) $modus = $decoded;
+  }
+  if (!is_array($modus)) $modus = array();
+
+  return array_merge(
+    array(
+      'index_photo_deriv'=>'2small',
+      'index_photo_deriv_hdpi'=>'xsmall',
+    ),
+    $modus
+  );
+}
+
+function bratonien_tools_webdav_gallery_base_params()
+{
+  $modus = bratonien_tools_webdav_modus_config();
+  $type = trim((string)($modus['index_photo_deriv'] ?? '2small'));
+  $params = $type !== '' ? @ImageStdParams::get_by_type($type) : null;
+  if ($params) return $params;
+
+  $params = ImageStdParams::get_by_type(IMG_THUMB);
+  if (!$params)
+  {
+    throw new RuntimeException('Piwigo-Galeriederivat ist nicht konfiguriert.');
+  }
+  return $params;
+}
+
+function bratonien_tools_webdav_modus_gallery_params(SrcImage $src, $base_params)
+{
+  $row_height = (int)$base_params->max_height();
+  $candidates = array($base_params);
+
+  foreach (ImageStdParams::get_defined_type_map() as $params)
+  {
+    if (
+      $params->max_height() > $row_height
+      && $params->sizing->max_crop == $base_params->sizing->max_crop
+    )
+    {
+      $candidates[] = $params;
+      if (count($candidates) === 3) break;
+    }
+  }
+
+  $selected = $base_params;
+  foreach ($candidates as $params)
+  {
+    $selected = $params;
+    $probe = new DerivativeImage($params, $src);
+    $size = $probe->get_size();
+    if ((int)$size[1] >= $row_height - 2) break;
+  }
+
+  return $selected;
+}
+
 try
 {
-  $variants = bratonien_tools_webdav_derivative_variants();
-  if (!$variants)
-  {
-    throw new RuntimeException('Keine Piwigo-Derivate konfiguriert.');
-  }
+  $gallery_base_params = bratonien_tools_webdav_gallery_base_params();
+  $gallery_base_type = (string)$gallery_base_params->type;
 
   $images = 0;
   $generated_or_ready = 0;
   $identity = 0;
   $metadata_repaired = 0;
+  $legacy_derivatives_rebuilt = 0;
   $errors = 0;
   $error_lines = array();
+  $variant_counts = array();
 
   $result = pwg_query('SELECT * FROM '.IMAGES_TABLE.' ORDER BY id');
   while ($row = pwg_db_fetch_assoc($result))
@@ -109,34 +173,59 @@ try
     }
 
     $src = new SrcImage($row);
-    foreach ($variants as $variant_name => $params)
+    try
     {
-      try
-      {
-        $probe = new DerivativeImage($params, $src);
-        if ($probe->same_as_source())
-        {
-          $identity++;
-          continue;
-        }
+      $gallery_params = bratonien_tools_webdav_modus_gallery_params($src, $gallery_base_params);
+      $variant = (string)$gallery_params->type;
+      if ($variant === '') $variant = 'custom';
+      $variant_counts[$variant] = ($variant_counts[$variant] ?? 0) + 1;
 
-        $detail = '';
-        if (bratonien_tools_webdav_generate_derivative($params, $src, $detail))
+      $probe = new DerivativeImage($gallery_params, $src);
+      if ($probe->same_as_source())
+      {
+        $identity++;
+        continue;
+      }
+
+      $target = $probe->get_path();
+      if ($target !== '' && is_file($target) && is_readable($target))
+      {
+        $expected_size = $gallery_params->compute_final_size(array($preview_width, $preview_height));
+        $existing_size = @getimagesize($target);
+        if (
+          is_array($expected_size)
+          && isset($expected_size[0], $expected_size[1])
+          && is_array($existing_size)
+          && isset($existing_size[0], $existing_size[1])
+          && ((int)$existing_size[0] !== (int)$expected_size[0] || (int)$existing_size[1] !== (int)$expected_size[1])
+        )
         {
-          $generated_or_ready++;
-        }
-        else
-        {
-          $errors++;
-          $error_lines[] = 'Bild #'.$image_id.' '.$variant_name.': '.($detail !== '' ? $detail : 'Derivat konnte nicht erzeugt werden.');
+          if (!@unlink($target))
+          {
+            $errors++;
+            $error_lines[] = 'Bild #'.$image_id.' Galerie: falsches Alt-Derivat konnte nicht entfernt werden: '.$target;
+            continue;
+          }
+          $legacy_derivatives_rebuilt++;
         }
       }
-      catch (Throwable $e)
+
+      $detail = '';
+      if (bratonien_tools_webdav_generate_derivative($gallery_params, $src, $detail))
+      {
+        $generated_or_ready++;
+      }
+      else
       {
         $errors++;
-        $error_lines[] = 'Bild #'.$image_id.' '.$variant_name.': '.get_class($e).': '.$e->getMessage();
+        $error_lines[] = 'Bild #'.$image_id.' Galerie: '.($detail !== '' ? $detail : 'Galeriederivat konnte nicht erzeugt werden.');
       }
     }
+    catch (Throwable $e)
+    {
+      $errors++;
+      $error_lines[] = 'Bild #'.$image_id.' Galerie: '.get_class($e).': '.$e->getMessage();
+    }
   }
 
   if ($metadata_repaired > 0)
@@ -157,12 +246,22 @@ try
     }
   }
 
+  ksort($variant_counts);
+  $variant_parts = array();
+  foreach ($variant_counts as $type=>$count)
+  {
+    $variant_parts[] = $type.':'.$count;
+  }
+
   echo 'WebDAV-Derivative-Builder: version='.BRATONIEN_WEBDAV_DERIVATIVE_BUILDER_VERSION.
     ' bilder='.$images.
-    ' varianten='.count($variants).
+    ' varianten_pro_bild=1'.
+    ' modus_basis='.$gallery_base_type.
+    ' modus_varianten='.implode(',', $variant_parts).
     ' bereit='.$generated_or_ready.
     ' identisch='.$identity.
     ' metadaten_repariert='.$metadata_repaired.
+    ' alt_derivate_neu='.$legacy_derivatives_rebuilt.
     ' fehler='.$errors."\n";
 
   exit($errors > 0 ? 1 : 0);

runtime/lib/build_webdav_placeholder_source.py

@@ -1,9 +1,9 @@
 #!/usr/bin/env python3
 """Build a placeholder-backed local source tree from Nextcloud WebDAV.
 
-This is intentionally additive: it does not replace the existing local-storage
-connector path. It creates only tiny placeholder files plus a metadata mapping;
-no Nextcloud original media is downloaded.
+This creates only tiny placeholder files plus a metadata mapping; no Nextcloud
+original media is downloaded. The authenticated Nextcloud user is never used as
+an album name.
 """
 
 from __future__ import annotations
@@ -14,6 +14,7 @@ import getpass
 import json
 import os
 import shutil
+import socket
 import ssl
 import sys
 import tempfile
@@ -21,13 +22,12 @@ import urllib.error
 import urllib.parse
 import urllib.request
 import xml.etree.ElementTree as ET
+from contextlib import contextmanager
 from pathlib import Path, PurePosixPath
 
 DAV = "DAV:"
 OC = "http://owncloud.org/ns"
 SUPPORTED_IMAGE_EXTENSIONS = {".jpg", ".jpeg", ".png", ".gif", ".webp"}
-# 1x1 transparent GIF, 34 bytes. The filename keeps the remote extension;
-# the placeholder exists only so Piwigo can discover the logical image entry.
 PLACEHOLDER = base64.b64decode("R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==")
 
 
@@ -54,9 +54,37 @@ def safe_local_name(name: str) -> str:
     return name
 
 
+@contextmanager
+def pinned_resolution(host: str, ip: str):
+    host = host.strip("[]").lower()
+    ip = ip.strip("[]")
+    if not host or not ip or host == ip:
+        yield
+        return
+
+    original = socket.getaddrinfo
+
+    def resolve(name, port, family=0, type=0, proto=0, flags=0):
+        normalized = str(name).strip("[]").lower()
+        if normalized == host:
+            return original(ip, port, family, type, proto, flags)
+        return original(name, port, family, type, proto, flags)
+
+    socket.getaddrinfo = resolve
+    try:
+        yield
+    finally:
+        socket.getaddrinfo = original
+
+
 class WebDavClient:
-    def __init__(self, base_url: str, user: str, password: str, timeout: int = 30) -> None:
+    def __init__(self, base_url: str, user: str, password: str, timeout: int = 30, connect_ip: str = "") -> None:
         self.base_url = base_url.rstrip("/")
+        parsed = urllib.parse.urlparse(self.base_url)
+        if parsed.scheme not in {"http", "https"} or not parsed.hostname:
+            fail("Nextcloud base URL must use HTTP or HTTPS and contain a host")
+        self.host = parsed.hostname.strip("[]")
+        self.connect_ip = connect_ip.strip("[]") or self.host
         self.user = user
         self.password = password
         self.timeout = timeout
@@ -86,9 +114,10 @@ class WebDavClient:
         request.add_header("Depth", "1")
         request.add_header("Content-Type", "application/xml; charset=utf-8")
         try:
-            with urllib.request.urlopen(request, timeout=self.timeout, context=self.context) as response:
-                status = response.status
-                payload = response.read()
+            with pinned_resolution(self.host, self.connect_ip):
+                with urllib.request.urlopen(request, timeout=self.timeout, context=self.context) as response:
+                    status = response.status
+                    payload = response.read()
         except urllib.error.HTTPError as error:
             if error.code in {401, 403}:
                 fail("Nextcloud rejected the WebDAV credentials or directory access")
@@ -98,14 +127,14 @@ class WebDavClient:
         if status != 207:
             fail(f"Nextcloud PROPFIND returned HTTP {status}")
 
+        base_path = urllib.parse.unquote(urllib.parse.urlparse(url).path).rstrip("/")
+        current: dict[str, object] | None = None
+        children: list[dict[str, object]] = []
         try:
             root = ET.fromstring(payload)
         except ET.ParseError as error:
             raise RuntimeError("Nextcloud returned invalid WebDAV XML") from error
 
-        base_path = urllib.parse.unquote(urllib.parse.urlparse(url).path).rstrip("/")
-        current: dict[str, object] | None = None
-        children: list[dict[str, object]] = []
         for response in root.findall(f"{{{DAV}}}response"):
             href = response.findtext(f"{{{DAV}}}href", default="")
             href_path = urllib.parse.unquote(urllib.parse.urlparse(href).path).rstrip("/")
@@ -148,13 +177,7 @@ def link_placeholder(seed: Path, target: Path) -> None:
         target.write_bytes(PLACEHOLDER)
 
 
-def build_root(
-    client: WebDavClient,
-    remote_root: str,
-    local_root: Path,
-    seed: Path,
-    mapping: dict[str, dict[str, object]],
-) -> tuple[int, int, int]:
+def build_root(client: WebDavClient, remote_root: str, local_root: Path, seed: Path, mapping: dict[str, dict[str, object]]) -> tuple[int, int, int]:
     files = 0
     folders = 0
     skipped = 0
@@ -221,6 +244,7 @@ def atomic_text(path: Path, text: str) -> None:
 def main() -> int:
     parser = argparse.ArgumentParser()
     parser.add_argument("--base-url", required=True)
+    parser.add_argument("--connect-ip", default="", help="IP address used for the TCP connection while preserving the URL host for HTTP Host and TLS SNI")
     parser.add_argument("--user", required=True)
     parser.add_argument("--password-file", type=Path)
     parser.add_argument("--root", action="append", required=True, help="WebDAV path relative to the authenticated user's files root")
@@ -249,26 +273,40 @@ def main() -> int:
             shutil.rmtree(staging)
         staging.mkdir(parents=True)
 
-        client = WebDavClient(args.base_url, args.user, password, max(1, args.timeout))
+        client = WebDavClient(args.base_url, args.user, password, max(1, args.timeout), args.connect_ip)
         mapping: dict[str, dict[str, object]] = {}
         manifest: list[str] = []
         total_files = total_folders = total_skipped = 0
-        used_names: set[str] = set()
+        used_fileids: set[int] = set()
 
         for remote_root_raw in args.root:
             remote_root = validate_relative(remote_root_raw)
-            current, _ = client.list_collection(remote_root)
+            current, root_children = client.list_collection(remote_root)
             fileid = int(current["fileid"])
-            display = str(current.get("display_name", "")).strip() or (PurePosixPath(remote_root).name if remote_root else args.user)
-            local_name = f"root-{fileid}"
-            if local_name in used_names:
+            if fileid in used_fileids:
                 fail(f"duplicate selected Nextcloud root fileid: {fileid}")
-            used_names.add(local_name)
+            used_fileids.add(fileid)
+            local_name = f"root-{fileid}"
             local_root = staging / local_name
             files, folders, skipped = build_root(client, remote_root, local_root, seed, mapping)
             total_files += files
             total_folders += folders
             total_skipped += skipped
+
+            if remote_root == "":
+                for child in sorted(root_children, key=lambda item: str(item.get("display_name", "")).casefold()):
+                    name = safe_local_name(str(child.get("display_name", "")))
+                    child_fileid = int(child.get("fileid", 0))
+                    if child_fileid < 1:
+                        fail(f"Nextcloud returned no stable fileid for root child {name!r}")
+                    child_path = source_dir / local_name / name
+                    if bool(child.get("is_dir")):
+                        manifest.append(f"webdav:{child_fileid}\tfolder\t{name}\t{child_path}")
+                    elif Path(name).suffix.lower() in SUPPORTED_IMAGE_EXTENSIONS:
+                        manifest.append(f"webdav:{child_fileid}\tfile\t{name}\t{child_path}")
+                continue
+
+            display = str(current.get("display_name", "")).strip() or PurePosixPath(remote_root).name
             manifest.append(f"webdav:{fileid}\tfolder\t{display}\t{source_dir / local_name}")
 
         if previous.exists():
@@ -297,6 +335,7 @@ def main() -> int:
         atomic_json(args.mapping, {
             "version": 1,
             "base_url": args.base_url.rstrip("/"),
+            "connect_ip": client.connect_ip,
             "user": args.user,
             "files": final_mapping,
         })
@@ -305,6 +344,7 @@ def main() -> int:
             "files": total_files,
             "folders": total_folders,
             "skipped": total_skipped,
+            "connect_ip": client.connect_ip,
             "source_dir": str(source_dir),
             "manifest": str(args.manifest),
             "mapping": str(args.mapping),

runtime/lib/piwigo-sync.php

@@ -252,8 +252,6 @@ try
       );
       decode_ws(http_request($base_url.'/ws.php?format=json', array('method'=>'bratonien.nc.syncProductive', 'site_id'=>$site_id), $headers));
       $orphan = decode_ws(http_request($base_url.'/ws.php?format=json', array('method'=>'bratonien.nc.syncOrphans', 'site_id'=>$site_id, 'simulate'=>0), $headers));
-      // Entfernt alte technische bratonien-webdav-N Wrapper aus Site 1,
-      // nachdem deren generierte Verzeichnisse beim Reconcile entfernt wurden.
       if ($site_id !== 1)
       {
         decode_ws(http_request($base_url.'/ws.php?format=json', array('method'=>'bratonien.nc.syncOrphans', 'site_id'=>1, 'simulate'=>0), $headers));
@@ -284,16 +282,31 @@ try
   try
   {
     decode_ws(http_request($base_url.'/ws.php?format=json', array('method'=>'pwg.session.login', 'username'=>$fallback_user, 'password'=>$fallback_password), array(), $cookie_file));
-    http_request(
-      $base_url.'/admin.php?page=site_update&site='.$site_id,
-      array('sync'=>'files','display_info'=>1,'privacy_level'=>0,'sync_meta'=>1,'simulate'=>0,'subcats-included'=>1,'bratonien_connector'=>1,'submit'=>1),
+
+    // Der Fallback darf keinen zweiten Strukturpfad benutzen. Auch mit
+    // Benutzer/Passwort wird exakt derselbe Bratonien-Sync wie mit API-Key
+    // ausgefuehrt. Dadurch werden alte technische WebDAV-Kategorien entfernt
+    // und vorhandene Piwigo-Alben wiederverwendet.
+    decode_ws(http_request(
+      $base_url.'/ws.php?format=json',
+      array('method'=>'bratonien.nc.syncProductive', 'site_id'=>$site_id),
       array(),
       $cookie_file
-    );
-    $orphan = decode_ws(http_request($base_url.'/ws.php?format=json', array('method'=>'bratonien.nc.syncOrphans', 'site_id'=>$site_id, 'simulate'=>0), array(), $cookie_file));
+    ));
+    $orphan = decode_ws(http_request(
+      $base_url.'/ws.php?format=json',
+      array('method'=>'bratonien.nc.syncOrphans', 'site_id'=>$site_id, 'simulate'=>0),
+      array(),
+      $cookie_file
+    ));
     if ($site_id !== 1)
     {
-      decode_ws(http_request($base_url.'/ws.php?format=json', array('method'=>'bratonien.nc.syncOrphans', 'site_id'=>1, 'simulate'=>0), array(), $cookie_file));
+      decode_ws(http_request(
+        $base_url.'/ws.php?format=json',
+        array('method'=>'bratonien.nc.syncOrphans', 'site_id'=>1, 'simulate'=>0),
+        array(),
+        $cookie_file
+      ));
     }
     $added = (int)($orphan['added_orphans'] ?? 0);
     $deleted = (int)($orphan['deleted_orphans'] ?? 0);

runtime/lib/precache-webdav-previews.php

@@ -6,6 +6,8 @@ if (PHP_SAPI !== 'cli')
   exit(1);
 }
 
+require_once(dirname(__DIR__, 2).'/include/nc_transport.inc.php');
+
 const BRATONIEN_WEBDAV_PREVIEW_VERSION = 2;
 const BRATONIEN_WEBDAV_PREVIEW_MAX_EDGE = 4096;
 const BRATONIEN_WEBDAV_PREVIEW_JPEG_QUALITY = 88;
@@ -24,7 +26,7 @@ function quote_webdav_path($path)
 function fetch_remote_blob($url, $user, $password)
 {
   $ch = curl_init($url);
-  curl_setopt_array($ch, array(
+  $options = array(
     CURLOPT_RETURNTRANSFER => true,
     CURLOPT_FOLLOWLOCATION => false,
     CURLOPT_CONNECTTIMEOUT => 10,
@@ -32,8 +34,10 @@ function fetch_remote_blob($url, $user, $password)
     CURLOPT_HTTPAUTH => CURLAUTH_BASIC,
     CURLOPT_USERPWD => $user.':'.$password,
     CURLOPT_FAILONERROR => false,
-    CURLOPT_USERAGENT => 'Bratonien-Tools-WebDAV-Precache/0.9.6.1',
-  ));
+    CURLOPT_USERAGENT => 'Bratonien-Tools-WebDAV-Precache/0.9.7.1',
+  );
+  bratonien_tools_nc_transport_apply_curl($options, $url);
+  curl_setopt_array($ch, $options);
   $body = curl_exec($ch);
   $errno = curl_errno($ch);
   $error = curl_error($ch);

runtime/lib/resolve-nextcloud-target.php

@@ -0,0 +1,24 @@
+#!/usr/bin/env php
+<?php
+if (PHP_SAPI !== 'cli')
+{
+  fwrite(STDERR, "CLI only\n");
+  exit(1);
+}
+
+require_once(dirname(__DIR__, 2).'/include/nc_transport.inc.php');
+
+try
+{
+  if ($argc !== 2) throw new RuntimeException('Aufruf: resolve-nextcloud-target.php <nextcloud-url>');
+  $url = rtrim(trim((string)$argv[1]), '/');
+  bratonien_tools_nc_transport_scheme($url);
+  $host = bratonien_tools_nc_transport_host($url);
+  echo bratonien_tools_nc_transport_public_ip($host)."\n";
+  exit(0);
+}
+catch (Throwable $e)
+{
+  fwrite(STDERR, $e->getMessage()."\n");
+  exit(1);
+}

runtime/native-runner.php

@@ -0,0 +1,108 @@
+#!/usr/bin/env php
+<?php
+if (PHP_SAPI !== 'cli')
+{
+  fwrite(STDERR, "CLI only\n");
+  exit(1);
+}
+
+$options = getopt('', array('connection-id::'));
+$connectionId = isset($options['connection-id']) ? (int)$options['connection-id'] : 0;
+
+$pluginRoot = dirname(__DIR__);
+$piwigoRoot = dirname($pluginRoot, 2);
+$base = rtrim($piwigoRoot, '/').'/_data/bratonien-tools';
+$schedulerDir = $base.'/nc-connector-scheduler';
+$stateFile = $schedulerDir.'/state.json';
+$runtimeDir = $base.'/nc-connector-runtime';
+$stateRoot = $base.'/nc-connector-state';
+
+function native_scheduler_state($path)
+{
+  if (!is_readable($path)) return array();
+  $decoded = json_decode((string)@file_get_contents($path), true);
+  return is_array($decoded) ? $decoded : array();
+}
+
+function native_scheduler_write($path, array $state)
+{
+  $json = json_encode($state, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
+  if (!is_string($json)) return false;
+  $tmp = $path.'.tmp';
+  if (@file_put_contents($tmp, $json."\n", LOCK_EX) === false) return false;
+  @chmod($tmp, 0640);
+  return @rename($tmp, $path);
+}
+
+foreach (array($schedulerDir, $runtimeDir, $stateRoot) as $dir)
+{
+  if (!is_dir($dir) && !@mkdir($dir, 0750, true) && !is_dir($dir))
+  {
+    fwrite(STDERR, "Runtime-Verzeichnis konnte nicht angelegt werden: {$dir}\n");
+    exit(1);
+  }
+}
+
+$state = native_scheduler_state($stateFile);
+$state['enabled'] = true;
+$state['mode'] = 'piwigo-native';
+$state['state'] = 'running';
+$state['message'] = $connectionId > 0 ? 'NC-Abgleich für Verbindung #'.$connectionId.' läuft.' : 'NC-Abgleich läuft.';
+$state['started_at'] = time();
+$state['timestamp'] = time();
+$state['connection_id'] = $connectionId;
+native_scheduler_write($stateFile, $state);
+
+$env = $_ENV;
+$env['PATH'] = '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin';
+$env['BRATONIEN_NC_NATIVE'] = '1';
+$env['BRATONIEN_NC_PIWIGO_ROOT'] = $piwigoRoot;
+$env['BRATONIEN_NC_CONFIG_DIR'] = $runtimeDir;
+$env['BRATONIEN_NC_STATE_ROOT'] = $stateRoot;
+$env['BRATONIEN_NC_CONNECTION_ID'] = (string)$connectionId;
+$env['LC_ALL'] = 'C';
+$env['LANG'] = 'C';
+
+$bash = is_executable('/usr/bin/bash') ? '/usr/bin/bash' : '/bin/bash';
+$command = array($bash, $pluginRoot.'/runtime/run-all.sh');
+$spec = array(
+  0=>array('file','/dev/null','r'),
+  1=>array('pipe','w'),
+  2=>array('pipe','w'),
+);
+$process = @proc_open($command, $spec, $pipes, null, $env);
+$stdout = '';
+$stderr = '';
+$exit = 1;
+if (is_resource($process))
+{
+  $stdout = (string)stream_get_contents($pipes[1]);
+  $stderr = (string)stream_get_contents($pipes[2]);
+  fclose($pipes[1]);
+  fclose($pipes[2]);
+  $exit = proc_close($process);
+}
+else
+{
+  $stderr = 'run-all.sh konnte nicht gestartet werden.';
+}
+
+$state = native_scheduler_state($stateFile);
+$state['enabled'] = true;
+$state['mode'] = 'piwigo-native';
+$state['state'] = $exit === 0 ? 'success' : 'error';
+$state['message'] = $exit === 0
+  ? ($connectionId > 0 ? 'NC-Abgleich für Verbindung #'.$connectionId.' erfolgreich abgeschlossen.' : 'NC-Abgleich erfolgreich abgeschlossen.')
+  : ($connectionId > 0 ? 'NC-Abgleich für Verbindung #'.$connectionId.' fehlgeschlagen.' : 'NC-Abgleich fehlgeschlagen.');
+$state['timestamp'] = time();
+$state['finished_at'] = time();
+$state['exit_code'] = $exit;
+$state['connection_id'] = $connectionId;
+$state['stdout'] = trim($stdout);
+$state['stderr'] = trim($stderr);
+if (empty($state['next_due']) || (int)$state['next_due'] < time())
+{
+  $state['next_due'] = time() + 60;
+}
+native_scheduler_write($stateFile, $state);
+exit($exit === 0 ? 0 : 1);

runtime/reconcile-webdav.php

@@ -78,8 +78,11 @@ function webdav_source_fingerprint($baseUrl, $user, array $roots)
 $pluginRoot = dirname(__DIR__);
 $piwigoRoot = dirname($pluginRoot, 2);
 $dbConfig = $piwigoRoot.'/local/config/database.inc.php';
-$configDir = '/etc/bratonien-tools/nc-connector';
-$stateRoot = '/var/lib/bratonien-tools/nc-connector';
+$nativeMode = getenv('BRATONIEN_NC_NATIVE') === '1';
+$configDir = trim((string)getenv('BRATONIEN_NC_CONFIG_DIR'));
+if ($configDir === '') $configDir = $nativeMode ? rtrim($piwigoRoot, '/').'/_data/bratonien-tools/nc-connector-runtime' : '/etc/bratonien-tools/nc-connector';
+$stateRoot = trim((string)getenv('BRATONIEN_NC_STATE_ROOT'));
+if ($stateRoot === '') $stateRoot = $nativeMode ? rtrim($piwigoRoot, '/').'/_data/bratonien-tools/nc-connector-state' : '/var/lib/bratonien-tools/nc-connector';
 $publicSourceRoot = rtrim($piwigoRoot, '/').'/_data/bratonien-tools/nc-webdav-source';
 $publicGalleryRoot = rtrim($piwigoRoot, '/').'/_data/bratonien-tools/nc-webdav-gallery';
 $legacyGalleryRoot = rtrim($piwigoRoot, '/').'/galleries';
@@ -107,11 +110,12 @@ try
   $rows = $db->query("SELECT id,name,adapter,config_json,secret_blob FROM `{$table}` ORDER BY id DESC");
   if (!$rows) fail_webdav_reconcile('Connector-Verbindungen konnten nicht gelesen werden: '.$db->error);
 
-  foreach (array($configDir=>$configDir, $publicSourceRoot=>$publicSourceRoot, $publicGalleryRoot=>$publicGalleryRoot) as $dir=>$unused)
+  foreach (array($configDir, $stateRoot, $publicSourceRoot, $publicGalleryRoot) as $dir)
   {
-    if (!is_dir($dir) && !mkdir($dir, $dir === $configDir ? 0700 : 0755, true)) fail_webdav_reconcile('Runtime-Verzeichnis konnte nicht angelegt werden: '.$dir);
+    if (!is_dir($dir) && !mkdir($dir, $dir === $configDir ? 0700 : 0750, true)) fail_webdav_reconcile('Runtime-Verzeichnis konnte nicht angelegt werden: '.$dir);
   }
   @chmod($configDir, 0700);
+  @chmod($stateRoot, 0750);
   @chmod($publicSourceRoot, 0755);
   @chmod($publicGalleryRoot, 0755);
 
@@ -125,7 +129,6 @@ try
     if (!is_array($config)) $config = array();
     if ((string)$row['adapter'] !== 'remote') continue;
     if ((string)($config['source_mode'] ?? '') !== 'webdav-placeholder') continue;
-    if (empty($config['parallel_test'])) continue;
 
     try
     {
@@ -151,7 +154,7 @@ try
       $seenFingerprints[$fingerprint] = $id;
       $known[$id] = true;
 
-      $stateDir = rtrim((string)($config['state_dir'] ?? ''), '/');
+      $stateDir = $nativeMode ? $stateRoot.'/connection-'.$id : rtrim((string)($config['state_dir'] ?? ''), '/');
       if ($stateDir === '') $stateDir = $stateRoot.'/connection-'.$id;
       if (!is_dir($stateDir) && !mkdir($stateDir, 0750, true)) fail_webdav_reconcile('State-Verzeichnis konnte nicht angelegt werden.');
       @chmod($stateDir, 0750);
@@ -164,8 +167,6 @@ try
       }
       if (!is_dir($galleryRoot) && !mkdir($galleryRoot, 0755, true)) fail_webdav_reconcile('WebDAV-Galeriebereich konnte nicht angelegt werden.');
       @chmod($galleryRoot, 0755);
-
-      // Alte technische Wrapper unter ./galleries duerfen nicht als Piwigo-Alben auftauchen.
       webdav_remove_generated_tree($legacyDefault, $legacyGalleryRoot);
 
       $sourceDir = $publicSourceRoot.'/connection-'.$id;
@@ -189,8 +190,9 @@ try
       {
         $path = trim((string)($root['webdav_path'] ?? ''), '/');
         $display = trim((string)($root['display_name'] ?? ''));
-        if ($path === '' || $display === '' || preg_match('/[\t\r\n]/', $path.$display)) fail_webdav_reconcile('Eine gespeicherte WebDAV-Wurzel ist ungueltig.');
-        $rootLines[] = $path."\t".$display;
+        $runtimePath = $path === '' ? '/' : $path;
+        if ($display === '' || preg_match('/[\t\r\n]/', $runtimePath.$display)) fail_webdav_reconcile('Eine gespeicherte WebDAV-Wurzel ist ungueltig.');
+        $rootLines[] = $runtimePath."\t".$display;
       }
       file_put_contents($rootsPath, implode("\n", $rootLines)."\n", LOCK_EX);
       @chmod($rootsPath, 0600);
@@ -215,21 +217,23 @@ try
       file_put_contents($configPath, implode("\n", $lines)."\n", LOCK_EX);
       @chmod($configPath, 0600);
 
+      unset($config['migration'], $config['parallel_test']);
       $config['state_dir'] = $stateDir;
       $config['status_file'] = $statusFile;
       $config['parallel_gallery_root'] = $galleryRoot;
       $config['source_fingerprint'] = $fingerprint;
       $config['runtime'] = array(
-        'mode'=>'parallel-webdav',
+        'mode'=>$nativeMode ? 'piwigo-native-webdav' : 'webdav',
         'config'=>$configPath,
         'piwigo_sync_enabled'=>true,
         'reconciled_at'=>date('Y-m-d H:i:s'),
       );
       $json = json_encode($config, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
-      if (is_string($json))
+      if (!is_string($json)) fail_webdav_reconcile('WebDAV-Runtime-Konfiguration konnte nicht serialisiert werden.');
+      $escaped = $db->real_escape_string($json);
+      if (!$db->query("UPDATE `{$table}` SET config_json='{$escaped}' WHERE id={$id} AND adapter='remote' LIMIT 1"))
       {
-        $escaped = $db->real_escape_string($json);
-        $db->query("UPDATE `{$table}` SET config_json='{$escaped}' WHERE id={$id} LIMIT 1");
+        fail_webdav_reconcile('WebDAV-Runtime-Status konnte nicht gespeichert werden: '.$db->error);
       }
     }
     catch (Throwable $e)

runtime/run-all.sh

@@ -1,10 +1,26 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-CONFIG_DIR="/etc/bratonien-tools/nc-connector"
 SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+PIWIGO_ROOT_DEFAULT="${BRATONIEN_NC_PIWIGO_ROOT:-$(cd -- "$SCRIPT_DIR/../../.." && pwd)}"
+CONFIG_DIR="${BRATONIEN_NC_CONFIG_DIR:-/etc/bratonien-tools/nc-connector}"
+NATIVE_MODE="${BRATONIEN_NC_NATIVE:-0}"
+TARGET_CONNECTION_ID="${BRATONIEN_NC_CONNECTION_ID:-0}"
+GLOBAL_LOCK_DIR="${PIWIGO_ROOT_DEFAULT%/}/_data/bratonien-tools/nc-connector-scheduler"
+GLOBAL_LOCK_FILE="$GLOBAL_LOCK_DIR/worker.lock"
+mkdir -p -- "$GLOBAL_LOCK_DIR"
+exec 8>"$GLOBAL_LOCK_FILE"
+if ! flock -n 8; then
+    echo "NC Connector: ein Lauf ist bereits aktiv."
+    exit 0
+fi
 shopt -s nullglob
 
+if [[ ! "$TARGET_CONNECTION_ID" =~ ^[0-9]+$ ]]; then
+    echo "NC Connector: ungültige Ziel-Verbindungs-ID: $TARGET_CONNECTION_ID" >&2
+    exit 1
+fi
+
 read_config_value() {
     local key="$1"
     local file="$2"
@@ -17,103 +33,35 @@ read_config_value() {
     printf '%s' "$value"
 }
 
-compact_text() {
-    printf '%s\n' "$1" | tail -n 20 | tr '\n' ' ' | sed 's/[[:space:]]\+/ /g; s/^[[:space:]]//; s/[[:space:]]$//'
-}
-
-read_webdav_failure_detail() {
-    local config="$1"
-    local captured_output="${2:-}"
-    local connection_id piwigo_root status_file status_detail
-
-    connection_id="$(read_config_value CONNECTION_ID "$config")"
-    piwigo_root="$(read_config_value PIWIGO_ROOT "$config")"
-    [[ -n "$piwigo_root" ]] || piwigo_root="/var/www/piwigo"
-
-    status_detail=""
-    if [[ -n "$connection_id" ]]; then
-        status_file="${piwigo_root%/}/_data/bratonien-tools/nc-connector-status/connection-${connection_id}.json"
-        if [[ -r "$status_file" ]]; then
-            status_detail="$(php -r '
-              $file = $argv[1];
-              $data = json_decode((string)@file_get_contents($file), true);
-              if (!is_array($data)) exit(0);
-              $message = trim((string)($data["message"] ?? ""));
-              $detail = trim((string)($data["error_detail"] ?? ""));
-              $parts = array();
-              if ($message !== "") $parts[] = $message;
-              if ($detail !== "") $parts[] = $detail;
-              if ($parts) {
-                $text = preg_replace("/\\s+/u", " ", implode(" - ", $parts));
-                echo trim((string)$text);
-              }
-            ' "$status_file")"
-        fi
-    fi
-
-    if [[ -n "$captured_output" ]]; then
-        captured_output="$(compact_text "$captured_output")"
-    fi
-
-    if [[ -n "$status_detail" && -n "$captured_output" ]]; then
-        printf '%s' "$status_detail | Prozessausgabe: $captured_output"
-    elif [[ -n "$status_detail" ]]; then
-        printf '%s' "$status_detail"
-    elif [[ -n "$captured_output" ]]; then
-        printf '%s' "$captured_output"
-    elif [[ -z "$connection_id" ]]; then
-        printf '%s' 'WebDAV-Prozess wurde gestartet, aber die Verbindungs-ID fehlt in der Runtime-Konfiguration.'
-    else
-        printf '%s' "WebDAV-Prozess fuer Verbindung ${connection_id} endete mit Fehler, lieferte aber weder Statusdatei noch Prozessausgabe."
-    fi
-}
-
 write_route_status() {
     local route="$1"
     local label="$2"
     local detail="$3"
-    local fallback_used="$4"
-    local success="$5"
-
+    local success="$4"
     [[ -n "${ROUTE_STATUS_FILE:-}" ]] || return 0
     mkdir -p -- "$(dirname -- "$ROUTE_STATUS_FILE")"
-
     php -r '
       $payload = array(
         "timestamp" => time(),
         "route" => (string)$argv[2],
         "label" => (string)$argv[3],
         "detail" => (string)$argv[4],
-        "fallback_used" => $argv[5] === "1",
-        "success" => $argv[6] === "1"
+        "fallback_used" => false,
+        "success" => $argv[5] === "1"
       );
       $json = json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
-      if (!is_string($json) || file_put_contents($argv[1], $json.PHP_EOL, LOCK_EX) === false) {
-        fwrite(STDERR, "Route-Status konnte nicht geschrieben werden.\n");
-        exit(1);
-      }
+      if (!is_string($json) || file_put_contents($argv[1], $json.PHP_EOL, LOCK_EX) === false) exit(1);
       @chmod($argv[1], 0644);
-    ' "$ROUTE_STATUS_FILE" "$route" "$label" "$detail" "$fallback_used" "$success"
+    ' "$ROUTE_STATUS_FILE" "$route" "$label" "$detail" "$success"
 }
 
-if ! php "$SCRIPT_DIR/reconcile.php"; then
-    echo "NC Connector: gespeicherte lokale Verbindungen konnten nicht mit der Runtime abgeglichen werden." >&2
-    exit 1
+if [[ "$NATIVE_MODE" != "1" ]]; then
+    php "$SCRIPT_DIR/reconcile.php"
 fi
-
-if ! php "$SCRIPT_DIR/reconcile-webdav.php"; then
-    echo "NC Connector: WebDAV-Verbindungen konnten nicht mit der Runtime abgeglichen werden." >&2
-    exit 1
-fi
-
-if ! php "$SCRIPT_DIR/cleanup-webdav-piwigo.php"; then
-    echo "NC Connector: Piwigo-Inhalte geloeschter WebDAV-Verbindungen konnten nicht bereinigt werden." >&2
-    exit 1
-fi
-
-if ! php "$SCRIPT_DIR/cleanup-stale.php"; then
-    echo "NC Connector: verwaiste Laufzeitdateien konnten nicht bereinigt werden." >&2
-    exit 1
+php "$SCRIPT_DIR/reconcile-webdav.php"
+php "$SCRIPT_DIR/cleanup-webdav-piwigo.php"
+if [[ "$NATIVE_MODE" != "1" ]]; then
+    php "$SCRIPT_DIR/cleanup-stale.php"
 fi
 
 configs=("$CONFIG_DIR"/connection-*.conf)
@@ -127,115 +75,120 @@ fi
 route_piwigo_root=""
 for candidate in "${webdav_configs[@]}" "${configs[@]}"; do
     [[ -f "$candidate" ]] || continue
+    candidate_id="$(read_config_value CONNECTION_ID "$candidate")"
+    if [[ "$TARGET_CONNECTION_ID" -gt 0 && "$candidate_id" != "$TARGET_CONNECTION_ID" ]]; then
+        continue
+    fi
     route_piwigo_root="$(read_config_value PIWIGO_ROOT "$candidate")"
     [[ -n "$route_piwigo_root" ]] && break
 done
-[[ -n "$route_piwigo_root" ]] || route_piwigo_root="/var/www/piwigo"
+[[ -n "$route_piwigo_root" ]] || route_piwigo_root="$PIWIGO_ROOT_DEFAULT"
 ROUTE_STATUS_FILE="${route_piwigo_root%/}/_data/bratonien-tools/nc-connector-status/route-status.json"
 
-webdav_success=0
-webdav_failed=0
-webdav_failure_detail=""
+failure_count=0
+webdav_count=0
+local_count=0
+summary_parts=()
+matched_count=0
 
-if [[ ${#webdav_configs[@]} -eq 0 ]]; then
-    webdav_failed=1
-    webdav_failure_detail="Keine WebDAV-Runtime-Verbindung ist konfiguriert. Es existiert aktuell nur die Legacy-Verbindung; deshalb kann WebDAV nicht primaer laufen."
-    echo "NC Connector: $webdav_failure_detail" >&2
-else
-    for config in "${webdav_configs[@]}"; do
+for config in "${webdav_configs[@]}"; do
+    [[ -f "$config" ]] || continue
+    name="$(basename "$config")"
+    connection_id="$(read_config_value CONNECTION_ID "$config")"
+    if [[ ! "$connection_id" =~ ^[0-9]+$ ]] || [[ "$connection_id" -lt 1 ]]; then
+        echo "NC Connector: $name besitzt keine gueltige Verbindungs-ID." >&2
+        failure_count=$((failure_count + 1))
+        summary_parts+=("$name: ungueltige Verbindungs-ID")
+        continue
+    fi
+    if [[ "$TARGET_CONNECTION_ID" -gt 0 && "$connection_id" != "$TARGET_CONNECTION_ID" ]]; then
+        continue
+    fi
+
+    matched_count=$((matched_count + 1))
+    webdav_count=$((webdav_count + 1))
+    echo "NC Connector WebDAV #$connection_id: $name"
+    output=""
+    if output="$(env PIWIGO_CONFIG="$config" bash "$SCRIPT_DIR/sync-webdav.sh" 2>&1)"; then
+        [[ -z "$output" ]] || printf '%s\n' "$output"
+        summary_parts+=("WebDAV #$connection_id erfolgreich")
+    else
+        code=$?
+        [[ -z "$output" ]] || printf '%s\n' "$output" >&2
+        failure_count=$((failure_count + 1))
+        summary_parts+=("WebDAV #$connection_id fehlgeschlagen (Exit $code)")
+    fi
+done
+
+if [[ "$NATIVE_MODE" != "1" ]]; then
+    for config in "${configs[@]}"; do
+        [[ -f "$config" ]] || continue
         name="$(basename "$config")"
-        echo "NC Connector WebDAV primaer: $name"
-        webdav_output=""
-        if webdav_output="$(env PIWIGO_CONFIG="$config" bash "$SCRIPT_DIR/sync-webdav.sh" 2>&1)"; then
-            webdav_success=1
-            [[ -z "$webdav_output" ]] || printf '%s\n' "$webdav_output"
+        connection_id="0"
+        if [[ "$name" =~ ^connection-([0-9]+)\.conf$ ]]; then
+            connection_id="${BASH_REMATCH[1]}"
+        fi
+        if [[ "$connection_id" -lt 1 ]]; then
+            echo "NC Connector: $name besitzt keine gueltige Verbindungs-ID." >&2
+            failure_count=$((failure_count + 1))
+            summary_parts+=("$name: ungueltige Verbindungs-ID")
+            continue
+        fi
+        if [[ "$TARGET_CONNECTION_ID" -gt 0 && "$connection_id" != "$TARGET_CONNECTION_ID" ]]; then
+            continue
+        fi
+
+        matched_count=$((matched_count + 1))
+        piwigo_root="$(read_config_value PIWIGO_ROOT "$config")"
+        [[ -n "$piwigo_root" ]] || piwigo_root="$PIWIGO_ROOT_DEFAULT"
+        tombstone_dir="${piwigo_root%/}/_data/bratonien-tools/nc-connector-status"
+        if [[ -f "$tombstone_dir/deleted-$connection_id" ]]; then
+            echo "NC Connector: Verbindung $connection_id wurde geloescht; Laufzeitdateien werden entfernt."
+            rm -f -- "$CONFIG_DIR/connection-$connection_id.conf" \
+                "$CONFIG_DIR/connection-$connection_id.db-password" \
+                "$CONFIG_DIR/connection-$connection_id.piwigo-password" \
+                "$CONFIG_DIR/connection-$connection_id.storages.tsv" \
+                "$CONFIG_DIR/connection-$connection_id.roots.tsv"
+            rm -f -- "$tombstone_dir/deleted-$connection_id"
+            continue
+        fi
+
+        local_count=$((local_count + 1))
+        echo "NC Connector Local #$connection_id: $name"
+        if env PIWIGO_CONFIG="$config" bash "$SCRIPT_DIR/sync.sh"; then
+            summary_parts+=("Local #$connection_id erfolgreich")
         else
-            webdav_exit=$?
-            webdav_failed=1
-            [[ -z "$webdav_output" ]] || printf '%s\n' "$webdav_output" >&2
-            webdav_failure_detail="$(read_webdav_failure_detail "$config" "$webdav_output")"
-            webdav_failure_detail="Exit-Code ${webdav_exit}: ${webdav_failure_detail}"
-            echo "NC Connector: WebDAV-Lauf fehlgeschlagen: $webdav_failure_detail" >&2
-            echo "NC Connector: Legacy-Fallback bleibt verfuegbar." >&2
+            failure_count=$((failure_count + 1))
+            summary_parts+=("Local #$connection_id fehlgeschlagen")
         fi
     done
 fi
 
-if [[ "$webdav_success" -eq 1 ]]; then
-    write_route_status \
-        "webdav" \
-        "WebDAV (primaer)" \
-        "WebDAV erfolgreich. Legacy-Fallback wurde in diesem Lauf nicht ausgefuehrt." \
-        "0" \
-        "1"
-    echo "NC Connector: WebDAV erfolgreich; Legacy-Verbindung wird in diesem Lauf nicht ausgefuehrt."
-    exit 0
-fi
-
-if [[ ${#configs[@]} -eq 0 ]]; then
-    [[ -n "$webdav_failure_detail" ]] || webdav_failure_detail="WebDAV ist fehlgeschlagen; Ursache konnte nicht ermittelt werden."
-    write_route_status \
-        "failed" \
-        "FEHLER - kein Datenweg" \
-        "WebDAV-Fehler: $webdav_failure_detail Keine Legacy-Fallback-Verbindung vorhanden." \
-        "0" \
-        "0"
-    echo "NC Connector: WebDAV ist fehlgeschlagen und es ist keine Legacy-Fallback-Verbindung vorhanden." >&2
+if [[ "$TARGET_CONNECTION_ID" -gt 0 && "$matched_count" -eq 0 ]]; then
+    write_route_status "failed" "FEHLER - Verbindung #$TARGET_CONNECTION_ID" "Keine Laufzeitkonfiguration für Verbindung #$TARGET_CONNECTION_ID gefunden." "0"
+    echo "NC Connector: keine Laufzeitkonfiguration für Verbindung #$TARGET_CONNECTION_ID gefunden." >&2
     exit 1
 fi
 
-echo "NC Connector: kein erfolgreicher WebDAV-Lauf; Legacy-Fallback wird ausgefuehrt."
-legacy_result=0
+summary_detail="$(IFS='; '; printf '%s' "${summary_parts[*]}")"
+[[ -n "$summary_detail" ]] || summary_detail="Keine Verbindung wurde ausgefuehrt."
 
-for config in "${configs[@]}"; do
-    name="$(basename "$config")"
-    connection_id=""
-    if [[ "$name" =~ ^connection-([0-9]+)\.conf$ ]]; then
-        connection_id="${BASH_REMATCH[1]}"
+if [[ "$failure_count" -eq 0 ]]; then
+    if [[ "$webdav_count" -gt 0 && "$local_count" -gt 0 ]]; then
+        route="mixed"
+        label="WebDAV + Local"
+    elif [[ "$webdav_count" -gt 0 ]]; then
+        route="webdav"
+        label="WebDAV"
+    else
+        route="local"
+        label="Local"
     fi
-
-    piwigo_root="$(read_config_value PIWIGO_ROOT "$config")"
-    [[ -n "$piwigo_root" ]] || piwigo_root="/var/www/piwigo"
-    tombstone_dir="${piwigo_root%/}/_data/bratonien-tools/nc-connector-status"
-
-    if [[ -n "$connection_id" && -f "$tombstone_dir/deleted-$connection_id" ]]; then
-        echo "NC Connector: Verbindung $connection_id wurde geloescht; Laufzeitdateien werden entfernt."
-        rm -f -- "$CONFIG_DIR/connection-$connection_id.conf" \
-            "$CONFIG_DIR/connection-$connection_id.db-password" \
-            "$CONFIG_DIR/connection-$connection_id.piwigo-password" \
-            "$CONFIG_DIR/connection-$connection_id.storages.tsv" \
-            "$CONFIG_DIR/connection-$connection_id.roots.tsv"
-        rm -f -- "$tombstone_dir/deleted-$connection_id"
-        continue
-    fi
-
-    echo "NC Connector Legacy-Fallback: $name"
-    if ! env PIWIGO_CONFIG="$config" bash "$SCRIPT_DIR/sync.sh"; then
-        legacy_result=1
-    fi
-done
-
-if [[ "$legacy_result" -eq 0 ]]; then
-    [[ -n "$webdav_failure_detail" ]] || webdav_failure_detail="WebDAV war nicht erfolgreich; Ursache konnte nicht ermittelt werden."
-    write_route_status \
-        "legacy_fallback" \
-        "LEGACY-FALLBACK AKTIV" \
-        "WebDAV-Fehler: $webdav_failure_detail Legacy-Fallback wurde erfolgreich ausgefuehrt." \
-        "1" \
-        "1"
-    echo "NC Connector: Legacy-Fallback erfolgreich."
+    write_route_status "$route" "$label" "$summary_detail" "1"
+    echo "NC Connector: angeforderte Verbindung wurde erfolgreich verarbeitet."
     exit 0
 fi
 
-[[ -n "$webdav_failure_detail" ]] || webdav_failure_detail="WebDAV war nicht erfolgreich; Ursache konnte nicht ermittelt werden."
-write_route_status \
-    "failed" \
-    "FEHLER - WebDAV und Fallback" \
-    "WebDAV-Fehler: $webdav_failure_detail Legacy-Fallback ist ebenfalls fehlgeschlagen." \
-    "1" \
-    "0"
-
-if [[ "$webdav_failed" -eq 1 ]]; then
-    echo "NC Connector: WebDAV und Legacy-Fallback sind fehlgeschlagen." >&2
-fi
+write_route_status "failed" "FEHLER - angeforderte Verbindung" "$summary_detail" "0"
+echo "NC Connector: die angeforderte Verbindung ist fehlgeschlagen." >&2
 exit 1

runtime/sync-webdav.sh

@@ -59,10 +59,6 @@ for target in (status_file, public_file):
 PY
 }
 
-compact_output() {
-    tail -n 12 | tr '\n' ' ' | sed 's/[[:space:]]\+/ /g; s/^[[:space:]]//; s/[[:space:]]$//'
-}
-
 failure() {
     local code="$1" command="$2" line="$3"
     trap - ERR
@@ -79,8 +75,12 @@ done < "$WEBDAV_ROOTS_FILE"
 
 [[ ${#ROOT_ARGS[@]} -gt 0 ]] || { write_status error "Keine WebDAV-Wurzeln konfiguriert"; exit 1; }
 
+WEBDAV_CONNECT_IP="$(php "$SCRIPT_DIR/lib/resolve-nextcloud-target.php" "$WEBDAV_BASE_URL")"
+[[ -n "$WEBDAV_CONNECT_IP" ]] || { write_status error "Nextcloud-Zieladresse konnte nicht ermittelt werden"; exit 1; }
+
 python3 "$SCRIPT_DIR/lib/build_webdav_placeholder_source.py" \
     --base-url "$WEBDAV_BASE_URL" \
+    --connect-ip "$WEBDAV_CONNECT_IP" \
     --user "$WEBDAV_USER" \
     --password-file "$WEBDAV_PASSWORD_FILE" \
     "${ROOT_ARGS[@]}" \
@@ -94,28 +94,6 @@ python3 "$SCRIPT_DIR/lib/shadow_tree.py" \
     --state "$SHADOW_MAP_FILE"
 
 trap - ERR
-PREVIEW_CACHE="$PIWIGO_ROOT/_data/bratonien-tools/nc-webdav-preview/connection-$CONNECTION_ID"
-PREVIEW_OUTPUT=""
-PREVIEW_EXIT=0
-if PREVIEW_OUTPUT="$(php "$SCRIPT_DIR/lib/precache-webdav-previews.php" \
-    --mapping="$WEBDAV_MAPPING_FILE" \
-    --base-url="$WEBDAV_BASE_URL" \
-    --user="$WEBDAV_USER" \
-    --password-file="$WEBDAV_PASSWORD_FILE" \
-    --cache-dir="$PREVIEW_CACHE" 2>&1)"; then
-    PREVIEW_EXIT=0
-else
-    PREVIEW_EXIT=$?
-fi
-[[ -z "$PREVIEW_OUTPUT" ]] || printf '%s\n' "$PREVIEW_OUTPUT"
-if [[ "$PREVIEW_EXIT" -ne 0 ]]; then
-    DETAIL="Exit-Code: $PREVIEW_EXIT"
-    if [[ -n "$PREVIEW_OUTPUT" ]]; then
-        DETAIL+="; Ausgabe: $(printf '%s\n' "$PREVIEW_OUTPUT" | compact_output)"
-    fi
-    write_status error "WebDAV-Vorschaubilder konnten beim Einlesen nicht erzeugt werden" "$DETAIL"
-    exit "$PREVIEW_EXIT"
-fi
 
 if [[ "${PIWIGO_SYNC_ENABLED:-0}" == "1" ]]; then
     PIWIGO_OUTPUT=""
@@ -133,7 +111,7 @@ if [[ "${PIWIGO_SYNC_ENABLED:-0}" == "1" ]]; then
     if [[ "$PIWIGO_EXIT" -ne 0 ]]; then
         DETAIL="Exit-Code: $PIWIGO_EXIT"
         if [[ -n "$PIWIGO_OUTPUT" ]]; then
-            DETAIL+="; Ausgabe: $(printf '%s\n' "$PIWIGO_OUTPUT" | compact_output)"
+            DETAIL+="; Ausgabe: $(printf '%s\n' "$PIWIGO_OUTPUT" | tail -n 12 | tr '\n' ' ' | sed 's/[[:space:]]\+/ /g; s/^[[:space:]]//; s/[[:space:]]$//')"
         fi
 
         if grep -qi 'Invalid username/password' <<<"$PIWIGO_OUTPUT"; then
@@ -160,28 +138,33 @@ if [[ "${PIWIGO_SYNC_ENABLED:-0}" == "1" ]]; then
         exit "$PIWIGO_EXIT"
     fi
 
-    DERIVATIVE_OUTPUT=""
-    DERIVATIVE_EXIT=0
-    if DERIVATIVE_OUTPUT="$(php "$SCRIPT_DIR/lib/build-webdav-derivatives.php" \
-        --piwigo-root="$PIWIGO_ROOT" \
-        --connection-id="$CONNECTION_ID" 2>&1)"; then
-        DERIVATIVE_EXIT=0
-    else
-        DERIVATIVE_EXIT=$?
-    fi
-    [[ -z "$DERIVATIVE_OUTPUT" ]] || printf '%s\n' "$DERIVATIVE_OUTPUT"
-    if [[ "$DERIVATIVE_EXIT" -ne 0 ]]; then
-        DETAIL="Exit-Code: $DERIVATIVE_EXIT"
-        if [[ -n "$DERIVATIVE_OUTPUT" ]]; then
-            DETAIL+="; Ausgabe: $(printf '%s\n' "$DERIVATIVE_OUTPUT" | compact_output)"
+    if [[ "${BRATONIEN_NC_NATIVE:-0}" == "1" ]]; then
+        if command -v timeout >/dev/null 2>&1; then
+            if ! timeout 30m env PIWIGO_CONFIG="$CONFIG_FILE" bash "$SCRIPT_DIR/build-webdav-media.sh"; then
+                write_status error "Bildaufbereitung ist fehlgeschlagen oder hat das 30-Minuten-Limit erreicht"
+                exit 1
+            fi
+        elif ! env PIWIGO_CONFIG="$CONFIG_FILE" bash "$SCRIPT_DIR/build-webdav-media.sh"; then
+            write_status error "Bildaufbereitung ist fehlgeschlagen"
+            exit 1
+        fi
+    else
+        MEDIA_UNIT="bratonien-nc-media-${CONNECTION_ID}-$(date +%s)"
+        if ! systemd-run \
+            --quiet \
+            --collect \
+            --unit="$MEDIA_UNIT" \
+            --property=RuntimeMaxSec=30min \
+            --setenv="PIWIGO_CONFIG=$CONFIG_FILE" \
+            /usr/bin/env bash "$SCRIPT_DIR/build-webdav-media.sh"; then
+            write_status error "Bildaufbereitung konnte nicht im Hintergrund gestartet werden"
+            exit 1
         fi
-        write_status error "Piwigo-Derivate für WebDAV-Bilder konnten nicht erzeugt werden" "$DETAIL"
-        exit "$DERIVATIVE_EXIT"
     fi
 
     if grep -q 'Piwigo-Synchronisierung per API erfolgreich' <<<"$PIWIGO_OUTPUT"; then
         write_status ok \
-            "WebDAV eingelesen, Piwigo synchronisiert und Derivate erzeugt" \
+            "WebDAV eingelesen und Piwigo synchronisiert; Bildaufbereitung abgeschlossen" \
             "" \
             "api" \
             "ok" \
@@ -190,7 +173,7 @@ if [[ "${PIWIGO_SYNC_ENABLED:-0}" == "1" ]]; then
             "Fallback wurde nicht benötigt"
     elif grep -q 'Piwigo-Datenbanksynchronisierung per Benutzername/Passwort-Fallback erfolgreich' <<<"$PIWIGO_OUTPUT"; then
         write_status ok \
-            "WebDAV eingelesen, Piwigo über Fallback synchronisiert und Derivate erzeugt" \
+            "WebDAV eingelesen und Piwigo über Fallback synchronisiert; Bildaufbereitung abgeschlossen" \
             "" \
             "fallback" \
             "not_used" \
@@ -198,8 +181,8 @@ if [[ "${PIWIGO_SYNC_ENABLED:-0}" == "1" ]]; then
             "ok" \
             "Benutzername/Passwort-Fallback erfolgreich"
     else
-        write_status ok "WebDAV eingelesen, Piwigo synchronisiert und Derivate erzeugt"
+        write_status ok "WebDAV eingelesen und Piwigo synchronisiert; Bildaufbereitung abgeschlossen"
     fi
 else
-    write_status ok "WebDAV eingelesen und Vorschaubilder erzeugt; Registrierung erfolgt über den bestehenden produktiven Piwigo-Sync"
+    write_status ok "WebDAV eingelesen; Piwigo-Synchronisierung ist für diese Verbindung deaktiviert"
 fi

tools/album_rules.inc.php

@@ -93,7 +93,37 @@ function bratonien_tools_resolve_album_rule($category_id, array $categories, arr
     $by_id[(int)$category['id']] = $category;
   }
 
-  $current = (int)$category_id;
+  $category_id = (int)$category_id;
+  $root = $by_id[$category_id] ?? null;
+  $is_private = $root && isset($root['status']) && $root['status'] === 'private';
+
+  // Privat ist eine Vererbungsgrenze. Eine direkt auf diesem privaten Album
+  // gesetzte Regel bleibt moeglich, aber Regeln oeffentlicher Eltern duerfen
+  // nicht in ein privates Album hineinvererbt werden.
+  if ($is_private)
+  {
+    if (isset($rules[$category_id]))
+    {
+      $rule = $rules[$category_id];
+      if ($rule['mode'] === 'disabled')
+      {
+        return array('mode'=>'disabled','profile_id'=>null,'source'=>'album');
+      }
+      if ($rule['mode'] === 'profile')
+      {
+        return array('mode'=>'profile','profile_id'=>(int)$rule['profile_id'],'source'=>'album');
+      }
+    }
+
+    $profile_id = $defaults['private_profile'] ?? null;
+    if (empty($profile_id))
+    {
+      return array('mode'=>'disabled','profile_id'=>null,'source'=>'global');
+    }
+    return array('mode'=>'profile','profile_id'=>(int)$profile_id,'source'=>'global');
+  }
+
+  $current = $category_id;
   $visited = array();
 
   while ($current > 0 && isset($by_id[$current]) && !isset($visited[$current]))
@@ -116,10 +146,7 @@ function bratonien_tools_resolve_album_rule($category_id, array $categories, arr
     $current = (int)($by_id[$current]['id_uppercat'] ?? 0);
   }
 
-  $root = $by_id[(int)$category_id] ?? null;
-  $is_private = $root && isset($root['status']) && $root['status'] === 'private';
-  $profile_id = $is_private ? ($defaults['private_profile'] ?? null) : ($defaults['public_profile'] ?? null);
-
+  $profile_id = $defaults['public_profile'] ?? null;
   if (empty($profile_id))
   {
     return array('mode'=>'disabled','profile_id'=>null,'source'=>'global');

webdav-image.php

@@ -8,6 +8,7 @@ if (!defined('BRATONIEN_TOOLS_PATH'))
   define('BRATONIEN_TOOLS_PATH', PHPWG_ROOT_PATH.'plugins/'.BRATONIEN_TOOLS_ID.'/');
 }
 require_once(BRATONIEN_TOOLS_PATH.'include/webdav_image_runtime.inc.php');
+require_once(BRATONIEN_TOOLS_PATH.'include/nc_transport.inc.php');
 
 function bratonien_tools_webdav_image_abort($status, $message)
 {
@@ -120,7 +121,7 @@ $options = array(
   CURLOPT_USERPWD => $user.':'.$password,
   CURLOPT_RETURNTRANSFER => false,
   CURLOPT_FAILONERROR => false,
-  CURLOPT_USERAGENT => 'Bratonien-Tools-WebDAV-Image/0.9.6.1',
+  CURLOPT_USERAGENT => 'Bratonien-Tools-WebDAV-Image/0.9.7.1',
   CURLOPT_HEADERFUNCTION => function($ch, $line)
   {
     $length = strlen($line);
@@ -147,6 +148,7 @@ $options = array(
     return strlen($data);
   },
 );
+bratonien_tools_nc_transport_apply_curl($options, $url);
 if (!empty($_SERVER['HTTP_RANGE']))
 {
   $range = trim((string)$_SERVER['HTTP_RANGE']);