0.9.6.27: WebDAV in bestehende Albumstruktur synchronisieren

0.9.6.27: einen NC-Anlageweg und Jetzt-abgleichen

.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_system.inc.php

@@ -170,7 +170,7 @@ function bratonien_tools_nc_connector_last_status(array $connections)
 
   foreach ($connections as $connection)
   {
-    if (empty($connection['enabled']) || (string)($connection['takeover_state'] ?? '') !== 'active')
+    if (empty($connection['enabled']))
     {
       continue;
     }
@@ -190,6 +190,13 @@ function bratonien_tools_nc_connector_system_status(array $connections = array()
   $timer = 'bratonien-nc-connector.timer';
   $service = 'bratonien-nc-connector.service';
 
+  $active = bratonien_tools_nc_connector_systemctl_value(array('is-active', $timer));
+  $enabled = bratonien_tools_nc_connector_systemctl_value(array('is-enabled', $timer));
+  $service_active_raw = bratonien_tools_nc_connector_systemctl_value(array('is-active', $service));
+  $service_active = in_array($service_active_raw, array('active', 'activating'), true);
+  $service_started_raw = bratonien_tools_nc_connector_systemctl_value(array('show', $service, '--property=ActiveEnterTimestamp', '--value'));
+  $service_started_timestamp = bratonien_tools_nc_connector_parse_systemd_time($service_started_raw);
+
   $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);
 
@@ -204,9 +211,6 @@ function bratonien_tools_nc_connector_system_status(array $connections = array()
     $next_timestamp = bratonien_tools_nc_connector_next_from_timer_list($timer);
   }
 
-  $active = bratonien_tools_nc_connector_systemctl_value(array('is-active', $timer));
-  $enabled = bratonien_tools_nc_connector_systemctl_value(array('is-enabled', $timer));
-
   $last = bratonien_tools_nc_connector_last_status($connections);
   if ($last['timestamp'] <= 0)
   {
@@ -214,10 +218,32 @@ function bratonien_tools_nc_connector_system_status(array $connections = array()
     $last['timestamp'] = bratonien_tools_nc_connector_parse_systemd_time($last_raw);
   }
 
+  if ($next_timestamp > 0)
+  {
+    $next_label = date('d.m.Y H:i:s', $next_timestamp);
+  }
+  elseif ($service_active && $active === 'active' && $enabled === 'enabled')
+  {
+    $next_label = 'Nach Abschluss des aktuellen Laufs';
+  }
+  elseif ($active === 'active' && $enabled === 'enabled')
+  {
+    $next_label = 'Wird von systemd neu geplant';
+  }
+  else
+  {
+    $next_label = 'Nicht verfügbar';
+  }
+
   return array(
     'timer_name' => $timer,
     'timer_active' => $active === 'active',
     'timer_enabled' => $enabled === 'enabled',
+    'service_active' => $service_active,
+    'current_run_timestamp' => $service_started_timestamp,
+    'current_run_label' => $service_active
+      ? ($service_started_timestamp > 0 ? 'Läuft seit '.date('d.m.Y H:i:s', $service_started_timestamp) : 'Läuft gerade')
+      : 'Kein Lauf aktiv',
     'last_run_timestamp' => (int)$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'],
@@ -229,7 +255,7 @@ function bratonien_tools_nc_connector_system_status(array $connections = array()
     'last_run_fallback_message' => (string)$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',
+    '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'),

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'])
@@ -104,17 +31,26 @@ 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();
-  $selected = array_values(array_filter($selected, function($path) { return $path !== ''; }));
-  if (!$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);
     $roots[] = array(
       'fileid'=>$fileid,
-      'display_name'=>basename($path),
+      'display_name'=>$display_name,
       'webdav_path'=>$path,
     );
   }
@@ -138,6 +74,11 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
     && (string)($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.');
+  }
+
   $config = array(
     'origin'=>'native',
     'source_mode'=>'webdav-placeholder',
@@ -152,7 +93,6 @@ function bratonien_tools_nc_connector_create_webdav_placeholder_from_wizard()
     'quiet_seconds'=>120,
     'max_wait_seconds'=>900,
     'full_sync_seconds'=>86400,
-    'parallel_test'=>true,
     'piwigo_auth'=>'connection-scoped',
     'api_enabled'=>$api_enabled,
   );
@@ -160,7 +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];
     }
@@ -200,12 +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.',
     );
   }
 
@@ -224,36 +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

@@ -126,7 +126,6 @@ function bratonien_tools_nc_wizard_save_sources_dispatch()
   $selected = isset($state['directory_selected']) && is_array($state['directory_selected'])
     ? array_values(array_unique(array_map(function($path) { return trim((string)$path, '/'); }, $state['directory_selected'])))
     : array();
-  $selected = array_values(array_filter($selected, function($path) { return $path !== ''; }));
   if (!$selected)
   {
     throw new RuntimeException('Bitte mindestens ein Nextcloud-Verzeichnis auswählen.');
@@ -143,9 +142,12 @@ function bratonien_tools_nc_wizard_save_sources_dispatch()
     {
       throw new RuntimeException('Für eine Auswahl fehlt die eindeutige Nextcloud-Datei-ID. Bitte das Verzeichnis erneut auswählen.');
     }
+    $display_name = $path === ''
+      ? (trim((string)($state['display_name'] ?? '')) !== '' ? trim((string)$state['display_name']) : (string)$state['username'])
+      : basename($path);
     $roots[] = array(
       'fileid'=>$fileid,
-      'display_name'=>basename($path),
+      'display_name'=>$display_name,
       'webdav_path'=>$path,
     );
   }
@@ -156,9 +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_productive_ws.inc.php

@@ -18,7 +18,7 @@ function bratonien_tools_register_nc_productive_ws_methods($arr)
         'info' => 'Piwigo storage site to synchronize. Default: 1.',
       ),
     ),
-    'Runs the approved direct Bratonien filesystem synchronization for the NC Connector.',
+    'Synchronizes the NC Connector into the existing Piwigo album hierarchy.',
     null,
     array(
       'admin_only' => true,
@@ -35,6 +35,105 @@ function bratonien_tools_nc_productive_error(&$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 (site_id IS NULL OR site_id <> '.(int)$excluded_site_id.')
+    AND (
+      dir = \''.$dir_sql.'\'
+      OR LOWER(name) = LOWER(\''.$name_sql.'\')
+    )
+  ORDER BY CASE WHEN dir = \''.$dir_sql.'\' THEN 0 ELSE 1 END, id
+;';
+  $result = pwg_query($query);
+  $ids = array();
+  while ($row = pwg_db_fetch_assoc($result))
+  {
+    $ids[] = (int)$row['id'];
+  }
+  if (count($ids) > 1)
+  {
+    throw new RuntimeException('Albumzuordnung ist mehrdeutig fuer "'.$name.'".');
+  }
+  return count($ids) === 1 ? $ids[0] : null;
+}
+
+function bratonien_tools_nc_ensure_album_path($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)
+{
+  $ids = query2array('SELECT id FROM '.CATEGORIES_TABLE.' WHERE site_id='.(int)$site_id.' AND dir IS NOT NULL', null, 'id');
+  if (!$ids) return 0;
+  delete_categories(array_map('intval', $ids));
+  return count($ids);
+}
+
 function bratonien_tools_ws_nc_sync_productive($params, &$service)
 {
   global $conf, $user;
@@ -42,181 +141,114 @@ function bratonien_tools_ws_nc_sync_productive($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);
+    // Older WebDAV builds created a complete physical album tree for their own
+    // Piwigo site. Remove that technical duplicate first. The WebDAV files are
+    // placeholders and are rebuilt independently, therefore database deletion
+    // must not remove the actual Nextcloud originals.
+    $counts['removed_duplicate_categories'] = bratonien_tools_nc_remove_storage_categories($site_id);
 
-    $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)
+    $db_elements = bratonien_tools_nc_managed_images($basedir);
+    $db_by_path = array_flip($db_elements);
+
+    $to_delete = array();
+    foreach ($db_elements as $id=>$path)
     {
-      $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');
+      if (!array_key_exists($path, $fs)) $to_delete[] = (int)$id;
+    }
+    if ($to_delete)
+    {
+      delete_elements($to_delete, false);
+      $counts['del_elements'] = count($to_delete);
+      foreach ($to_delete as $id)
+      {
+        if (isset($db_elements[$id])) unset($db_by_path[$db_elements[$id]], $db_elements[$id]);
+      }
     }
 
     $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]))
+      {
+        $id = (int)$db_by_path[$path];
+        $all_ids[] = $id;
+        pwg_query('DELETE FROM '.IMAGE_CATEGORY_TABLE.' WHERE image_id='.$id);
+        if ($category_id !== null)
+        {
+          single_insert(IMAGE_CATEGORY_TABLE, array('image_id'=>$id, 'category_id'=>$category_id));
+        }
         continue;
       }
 
@@ -229,116 +261,41 @@ 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);
+    // Refresh the normal file attributes for connector-managed images only.
     $updates = array();
-    foreach ($files as $id => $file)
+    foreach ($all_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 +308,25 @@ 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/tool_registry.inc.php

@@ -6,11 +6,12 @@ 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() : '0.9.6.27';
   $GLOBALS['template']->func_combine_script(array(
     'id'=>'bratonien_nc_connector_edit_v2',
     'path'=>BRATONIEN_TOOLS_PATH.'js/nc_connector_edit_v2.js',
     'load'=>'footer',
-    'version'=>function_exists('bratonien_tools_current_version') ? bratonien_tools_current_version() : '0.9.6.10',
+    'version'=>$script_version,
   ));
 }
 
@@ -27,7 +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');
@@ -41,6 +41,58 @@ 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_connector_system.inc.php');
+
+function bratonien_tools_nc_connector_run_now()
+{
+  $service = 'bratonien-nc-connector.service';
+  $active = bratonien_tools_nc_connector_systemctl_value(array('is-active', $service));
+  if ($active === 'active' || $active === 'activating')
+  {
+    return array('message'=>'Der NC-Abgleich läuft bereits.');
+  }
+
+  if (!function_exists('proc_open'))
+  {
+    throw new RuntimeException('Der NC-Abgleich konnte nicht gestartet werden: proc_open ist nicht verfügbar.');
+  }
+
+  $commands = array(
+    array('/usr/bin/sudo', '-n', '/usr/bin/systemctl', 'start', '--no-block', $service),
+    array('/usr/bin/systemctl', 'start', '--no-block', $service),
+  );
+  $last_error = '';
+
+  foreach ($commands as $command)
+  {
+    if (!is_executable($command[0]))
+    {
+      continue;
+    }
+    $spec = array(
+      0=>array('file','/dev/null','r'),
+      1=>array('pipe','w'),
+      2=>array('pipe','w'),
+    );
+    $process = @proc_open($command, $spec, $pipes, null, array_merge($_ENV, array('LC_ALL'=>'C','LANG'=>'C')));
+    if (!is_resource($process))
+    {
+      continue;
+    }
+    $stdout = trim((string)stream_get_contents($pipes[1]));
+    $stderr = trim((string)stream_get_contents($pipes[2]));
+    fclose($pipes[1]);
+    fclose($pipes[2]);
+    $exit = proc_close($process);
+    if ($exit === 0)
+    {
+      return array('message'=>'NC-Abgleich wurde gestartet.');
+    }
+    $last_error = $stderr !== '' ? $stderr : $stdout;
+  }
+
+  throw new RuntimeException('Der NC-Abgleich konnte nicht gestartet werden'.($last_error !== '' ? ': '.$last_error : '.'));
+}
 
 function bratonien_tools_get_tools()
 {
@@ -65,14 +117,13 @@ 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_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'),
@@ -85,10 +136,7 @@ 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'),

js/nc_connector_edit_v2.js

@@ -2,20 +2,43 @@
   '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) {
@@ -23,27 +46,9 @@
       });
     }
 
-    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>'
@@ -215,79 +171,66 @@
           + '<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) {
-      var actions = deleteForm.parentElement;
-      if (!actions) return;
+    [].slice.call(section.querySelectorAll('button[value="nc_connector_edit_start"]')).forEach(function (button) {
+      var form = button.closest('form');
+      if (form) form.remove();
+    });
 
-      [].slice.call(actions.querySelectorAll('form')).forEach(function (form) {
-        var migrate = form.querySelector('button[value="nc_connector_migrate_start"]');
-        if (migrate) 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);
-
-      loadConnection(id).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));
-      });
-    }
+    [].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');
-      var card = deleteButton.closest('details');
-      if (!deleteForm || !card) return;
+      if (!deleteForm || !deleteForm.parentElement) return;
       var idInput = deleteForm.querySelector('input[name="connection_id"]');
       if (!idInput) return;
-      var text = card.textContent || '';
-      var isLocal = text.indexOf('bestehende Legacy-Konfiguration') !== -1;
-      if (isLocal) rebuildLocalActions(deleteForm, idInput.value);
+      var id = idInput.value;
+      var actions = deleteForm.parentElement;
+
+      loadConnection(id).then(function (data) {
+        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 info = document.createElement('span');
+        info.className = 'bratonien-main-cache__warning';
+        info.textContent = 'Verbindung konnte nicht geladen werden: '+(error.message || String(error));
+        actions.insertBefore(info, deleteForm);
+      });
     });
   });
 })();

main.inc.php

@@ -1,7 +1,7 @@
 <?php
 /*
 Plugin Name: Bratonien Tools
-Version: 0.9.6.13
+Version: 0.9.6.27
 Description: Erweiterbare Administrationswerkzeuge fuer die Bratonien-Piwigo-Installation.
 Plugin URI: https://github.com/Terranom674/Piwigo_Bratonien_Tools
 Author: Bratonien

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,

nc-connector-source-picker-start.php

@@ -0,0 +1,104 @@
+<?php
+$piwigo_root = realpath(dirname(__DIR__, 2));
+if ($piwigo_root === false)
+{
+  http_response_code(500);
+  exit;
+}
+define('PHPWG_ROOT_PATH', rtrim($piwigo_root, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR);
+include_once(PHPWG_ROOT_PATH.'include/common.inc.php');
+
+header('Content-Type: application/json; charset=utf-8');
+header('Cache-Control: no-store, max-age=0');
+
+function bratonien_tools_nc_source_picker_json($status, array $payload)
+{
+  http_response_code((int)$status);
+  echo json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+  exit;
+}
+
+function bratonien_tools_nc_source_picker_fail($message, array $fields = array())
+{
+  bratonien_tools_nc_source_picker_json(422, array(
+    'ok'=>false,
+    'message'=>(string)$message,
+    'fields'=>array_values(array_unique($fields)),
+  ));
+}
+
+if (!defined('BRATONIEN_TOOLS_PATH'))
+{
+  bratonien_tools_nc_source_picker_json(404, array('ok'=>false, 'message'=>'Bratonien Tools ist nicht aktiv.', 'fields'=>array()));
+}
+if (!function_exists('is_admin') || !is_admin())
+{
+  bratonien_tools_nc_source_picker_json(403, array('ok'=>false, 'message'=>'Administratorrechte erforderlich.', 'fields'=>array()));
+}
+if (($_SERVER['REQUEST_METHOD'] ?? '') !== 'POST')
+{
+  bratonien_tools_nc_source_picker_json(405, array('ok'=>false, 'message'=>'Nur POST ist erlaubt.', 'fields'=>array()));
+}
+
+try
+{
+  check_pwg_token();
+  require_once(BRATONIEN_TOOLS_PATH.'include/tool_registry.inc.php');
+
+  $id = (int)($_POST['connection_id'] ?? 0);
+  $connection = bratonien_tools_nc_connector_connection($id, true);
+  if (!$connection)
+  {
+    bratonien_tools_nc_source_picker_fail('Die zu bearbeitende Verbindung wurde nicht gefunden.');
+  }
+  if ((string)$connection['adapter'] !== 'local')
+  {
+    bratonien_tools_nc_source_picker_fail('Die automatische Migrationsauswahl ist nur für die bestehende Legacy-Verbindung vorgesehen.');
+  }
+
+  $config = isset($connection['config']) && is_array($connection['config']) ? $connection['config'] : array();
+  $credentials = bratonien_tools_nc_connector_scoped_secret($connection);
+
+  $base_url = trim((string)($config['nextcloud_url'] ?? ''));
+  $username = trim((string)($credentials['nextcloud_user'] ?? ''));
+  $password = (string)($credentials['nextcloud_password'] ?? '');
+
+  $missing = array();
+  if ($base_url === '') $missing[] = 'nc_nextcloud_url';
+  if ($username === '') $missing[] = 'nc_nextcloud_user';
+  if ($password === '') $missing[] = 'nc_nextcloud_password';
+  if ($missing)
+  {
+    bratonien_tools_nc_source_picker_fail(
+      'Für die automatische Ordnerauswahl müssen Nextcloud-Adresse, Benutzer und Passwort gespeichert sein.',
+      $missing
+    );
+  }
+
+  bratonien_tools_nc_connector_prepare_webdav_wizard_from_connection($connection, 'migrate');
+
+  $state = bratonien_tools_nc_wizard_state();
+  if ((int)($state['step'] ?? 0) !== 2 || empty($state['scan_ok']) || empty($state['directory_selection_ready']))
+  {
+    $detail = trim((string)($state['technical_error'] ?? ''));
+    bratonien_tools_nc_source_picker_fail(
+      $detail !== '' ? 'Die Nextcloud-Ordner konnten nicht geladen werden: '.$detail : 'Die Nextcloud-Ordner konnten nicht geladen werden.',
+      array('nc_nextcloud_url','nc_nextcloud_user','nc_nextcloud_password')
+    );
+  }
+
+  bratonien_tools_nc_source_picker_json(200, array(
+    'ok'=>true,
+    'message'=>'Nextcloud-Ordner wurden geladen. Die Auswahl wird geöffnet.',
+    'fields'=>array(),
+  ));
+}
+catch (Throwable $e)
+{
+  $message = trim($e->getMessage());
+  if ($message === '') $message = 'Die Nextcloud-Ordnerauswahl konnte nicht vorbereitet werden.';
+  bratonien_tools_nc_source_picker_fail(
+    $message,
+    array('nc_nextcloud_url','nc_nextcloud_user','nc_nextcloud_password')
+  );
+}

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_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. Selecting the user's WebDAV root mirrors its children directly.
 """
 
 from __future__ import annotations
@@ -26,8 +26,6 @@ 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==")
 
 
@@ -148,13 +146,7 @@ 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
@@ -253,17 +245,19 @@ def main() -> int:
         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)
             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)
+            # An explicitly selected folder keeps its own name. The authenticated
+            # user's WebDAV root is transparent and must never become an album.
+            display = "" if remote_root == "" else (str(current.get("display_name", "")).strip() or PurePosixPath(remote_root).name)
+            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

runtime/lib/shadow_tree.py

@@ -79,15 +79,23 @@ def preferred_target(source_key: str, raw_name: str, parent_target: Path, old_ma
     return safe_name(raw_name)
 
 
-def mirror_directory(source: Path, target: Path, source_key: str, target_key: Path, old_map: dict[str, str], new_map: dict[str, str]) -> None:
+def mirror_directory(
+    source: Path,
+    target: Path,
+    source_key: str,
+    target_key: Path,
+    old_map: dict[str, str],
+    new_map: dict[str, str],
+    used: set[str] | None = None,
+) -> None:
     target.mkdir(parents=True, exist_ok=True)
-    used: set[str] = set()
+    used_names = used if used is not None else set()
     for child in sorted(source.iterdir(), key=lambda item: (item.name.casefold(), item.name)):
         if child.is_symlink():
             continue
         child_source_key = f"{source_key}/{child.name}"
         preferred = preferred_target(child_source_key, child.name, target_key, old_map)
-        child_name = unique_name(preferred, used, child.is_file())
+        child_name = unique_name(preferred, used_names, child.is_file())
         child_target = target / child_name
         child_target_key = target_key / child_name
         new_map[child_source_key] = child_target_key.as_posix()
@@ -120,11 +128,26 @@ def build(manifest: Path, destination: Path, state_file: Path) -> None:
 
     try:
         used_roots: set[str] = set()
+        transparent_roots = 0
         for entry in sorted(entries, key=lambda item: (item["display_name"].casefold(), item["share_id"])):
             source = Path(entry["source_path"])
             source_key = f"share:{entry['share_id']}"
-            preferred = preferred_target(source_key, entry["display_name"], Path("."), old_map)
             is_file_share = entry["item_type"] == "file"
+
+            # Empty display_name is intentional: it represents the authenticated
+            # user's WebDAV root. Its children belong directly at destination;
+            # the Nextcloud username must never become an album wrapper.
+            if not is_file_share and entry["display_name"] == "":
+                transparent_roots += 1
+                if transparent_roots > 1:
+                    raise ValueError("only one transparent WebDAV root is allowed")
+                if not source.is_dir():
+                    raise FileNotFoundError(f"source is not a readable directory: {source}")
+                new_map[source_key] = "."
+                mirror_directory(source, staging, source_key, Path("."), old_map, new_map, used_roots)
+                continue
+
+            preferred = preferred_target(source_key, entry["display_name"], Path("."), old_map)
             root_name = unique_name(preferred, used_roots, is_file_share)
             root_key = Path(root_name)
             new_map[source_key] = root_key.as_posix()

runtime/reconcile-webdav.php

@@ -107,7 +107,7 @@ 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, $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);
   }
@@ -125,7 +125,6 @@ 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
     {
@@ -164,8 +163,6 @@ 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 +186,9 @@ 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 +213,23 @@ 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;
       $config['runtime'] = array(
-        'mode'=>'parallel-webdav',
+        'mode'=>'webdav',
         'config'=>$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

@@ -17,104 +17,32 @@ 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 "$SCRIPT_DIR/reconcile.php"; then
-    echo "NC Connector: gespeicherte lokale Verbindungen konnten nicht mit der Runtime abgeglichen werden." >&2
-    exit 1
-fi
-
-if ! php "$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
-fi
+php "$SCRIPT_DIR/reconcile.php"
+php "$SCRIPT_DIR/reconcile-webdav.php"
+php "$SCRIPT_DIR/cleanup-webdav-piwigo.php"
+php "$SCRIPT_DIR/cleanup-stale.php"
 
 configs=("$CONFIG_DIR"/connection-*.conf)
 webdav_configs=("$CONFIG_DIR"/webdav-connection-*.conf)
@@ -133,72 +61,54 @@ done
 [[ -n "$route_piwigo_root" ]] || route_piwigo_root="/var/www/piwigo"
 ROUTE_STATUS_FILE="${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=()
 
-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
-        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"
-        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: $webdav_failure_detail" >&2
-            echo "NC Connector: Legacy-Fallback bleibt verfuegbar." >&2
-        fi
-    done
-fi
+for config in "${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 [[ "$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: $webdav_failure_detail Keine Legacy-Fallback-Verbindung vorhanden." \
-        "0" \
-        "0"
-    echo "NC Connector: WebDAV ist fehlgeschlagen und es ist keine Legacy-Fallback-Verbindung vorhanden." >&2
-    exit 1
-fi
-
-echo "NC Connector: kein erfolgreicher WebDAV-Lauf; Legacy-Fallback wird ausgefuehrt."
-legacy_result=0
+    webdav_count=$((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
 
 for config in "${configs[@]}"; do
+    [[ -f "$config" ]] || continue
     name="$(basename "$config")"
-    connection_id=""
+    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
 
     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-$connection_id" ]]; then
+    if [[ -f "$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-$connection_id.db-password" \
@@ -209,33 +119,35 @@ for config in "${configs[@]}"; do
         continue
     fi
 
-    echo "NC Connector Legacy-Fallback: $name"
-    if ! env PIWIGO_CONFIG="$config" bash "$SCRIPT_DIR/sync.sh"; then
-        legacy_result=1
+    local_count=$((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
+        failure_count=$((failure_count + 1))
+        summary_parts+=("Local #$connection_id fehlgeschlagen")
     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: $webdav_failure_detail Legacy-Fallback wurde erfolgreich ausgefuehrt." \
-        "1" \
-        "1"
-    echo "NC Connector: Legacy-Fallback erfolgreich."
+summary_detail="$(IFS='; '; printf '%s' "${summary_parts[*]}")"
+[[ -n "$summary_detail" ]] || summary_detail="Keine Verbindung wurde ausgefuehrt."
+
+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
+    write_route_status "$route" "$label" "$summary_detail" "1"
+    echo "NC Connector: alle Verbindungen wurden 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 - mindestens eine Verbindung" "$summary_detail" "0"
+echo "NC Connector: mindestens eine 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="$3"
     trap - ERR
@@ -94,28 +90,6 @@ python3 "$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 [[ "${PIWIGO_SYNC_ENABLED:-0}" == "1" ]]; then
     PIWIGO_OUTPUT=""
@@ -133,7 +107,7 @@ if [[ "${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' <<<"$PIWIGO_OUTPUT"; then
@@ -160,28 +134,21 @@ if [[ "${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)"
-        fi
-        write_status error "Piwigo-Derivate für WebDAV-Bilder konnten nicht erzeugt werden" "$DETAIL"
-        exit "$DERIVATIVE_EXIT"
+    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
 
     if grep -q 'Piwigo-Synchronisierung per API erfolgreich' <<<"$PIWIGO_OUTPUT"; then
         write_status ok \
-            "WebDAV eingelesen, Piwigo synchronisiert und Derivate erzeugt" \
+            "WebDAV eingelesen und Piwigo synchronisiert; Bildaufbereitung läuft im Hintergrund" \
             "" \
             "api" \
             "ok" \
@@ -190,7 +157,7 @@ if [[ "${PIWIGO_SYNC_ENABLED:-0}" == "1" ]]; then
             "Fallback wurde nicht benötigt"
     elif grep -q 'Piwigo-Datenbanksynchronisierung per Benutzername/Passwort-Fallback erfolgreich' <<<"$PIWIGO_OUTPUT"; then
         write_status ok \
-            "WebDAV eingelesen, Piwigo über Fallback synchronisiert und Derivate erzeugt" \
+            "WebDAV eingelesen und Piwigo über Fallback synchronisiert; Bildaufbereitung läuft im Hintergrund" \
             "" \
             "fallback" \
             "not_used" \
@@ -198,8 +165,8 @@ if [[ "${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 läuft im Hintergrund"
     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