0.9.6.16 bump version for automatic WebDAV path picker

0.9.6.15: WebDAV-Quellordner klar von Legacy-SMB trennen

include/tool_registry.inc.php

@@ -6,11 +6,18 @@ if (!defined('PHPWG_ROOT_PATH'))
 
 if (isset($GLOBALS['template']) && is_object($GLOBALS['template']) && method_exists($GLOBALS['template'], 'func_combine_script'))
 {
+  $script_version = function_exists('bratonien_tools_current_version') ? bratonien_tools_current_version() : '0.9.6.15';
   $GLOBALS['template']->func_combine_script(array(
     'id'=>'bratonien_nc_connector_edit_v2',
     'path'=>BRATONIEN_TOOLS_PATH.'js/nc_connector_edit_v2.js',
     'load'=>'footer',
-    'version'=>function_exists('bratonien_tools_current_version') ? bratonien_tools_current_version() : '0.9.6.10',
+    'version'=>$script_version,
+  ));
+  $GLOBALS['template']->func_combine_script(array(
+    'id'=>'bratonien_nc_connector_source_ui',
+    'path'=>BRATONIEN_TOOLS_PATH.'js/nc_connector_source_ui.js',
+    'load'=>'footer',
+    'version'=>$script_version,
   ));
 }
 

js/nc_connector_edit_v2.js

@@ -19,7 +19,7 @@
 
     function escapeHtml(value) {
       return String(value == null ? '' : value).replace(/[&<>"']/g, function (c) {
-        return {'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#039;'}[c];
+        return {'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot',"'":'&#039;'}[c];
       });
     }
 
@@ -239,13 +239,14 @@
       });
     }
 
-    function rebuildLocalActions(deleteForm, id) {
+    function rebuildLocalActions(deleteForm, id, connectionData) {
       var actions = deleteForm.parentElement;
       if (!actions) return;
 
       [].slice.call(actions.querySelectorAll('form')).forEach(function (form) {
         var migrate = form.querySelector('button[value="nc_connector_migrate_start"]');
-        if (migrate) form.remove();
+        var editStart = form.querySelector('button[value="nc_connector_edit_start"]');
+        if (migrate || editStart) form.remove();
       });
       [].slice.call(actions.children).forEach(function (child) {
         if (child.tagName === 'BUTTON' && (child.textContent || '').trim() === 'Bearbeiten') child.remove();
@@ -265,7 +266,8 @@
       info.textContent = 'WebDAV-Migration wird geprüft …';
       actions.insertBefore(info, deleteForm);
 
-      loadConnection(id).then(function (data) {
+      var dataPromise = connectionData ? Promise.resolve(connectionData) : loadConnection(id);
+      dataPromise.then(function (data) {
         var webdav = data.webdav || {};
         if (webdav.migration_ready) {
           info.remove();
@@ -279,15 +281,44 @@
       });
     }
 
+    function rebuildRemoteActions(deleteForm, id) {
+      var actions = deleteForm.parentElement;
+      if (!actions) return;
+      [].slice.call(actions.querySelectorAll('form')).forEach(function (form) {
+        var oldEdit = form.querySelector('button[value="nc_connector_edit_start"]');
+        var oldMigrate = form.querySelector('button[value="nc_connector_migrate_start"]');
+        if (oldEdit || oldMigrate) form.remove();
+      });
+      [].slice.call(actions.children).forEach(function (child) {
+        if (child.tagName === 'BUTTON' && (child.textContent || '').trim() === 'Bearbeiten') child.remove();
+        if (child.dataset && child.dataset.ncMigrationInfo) child.remove();
+      });
+      actions.insertBefore(postForm('Bearbeiten', 'nc_connector_edit_start', id, 'edit'), deleteForm);
+    }
+
+    [].slice.call(section.querySelectorAll('button[value="nc_connector_edit_start"]')).forEach(function (button) {
+      var form = button.closest('form');
+      if (form) form.remove();
+    });
+
     [].slice.call(section.querySelectorAll('button[value="nc_connector_delete"]')).forEach(function (deleteButton) {
       var deleteForm = deleteButton.closest('form');
-      var card = deleteButton.closest('details');
+      if (!deleteForm) return;
-      if (!deleteForm || !card) return;
       var idInput = deleteForm.querySelector('input[name="connection_id"]');
       if (!idInput) return;
-      var text = card.textContent || '';
+      var id = idInput.value;
-      var isLocal = text.indexOf('bestehende Legacy-Konfiguration') !== -1;
+
-      if (isLocal) rebuildLocalActions(deleteForm, idInput.value);
+      loadConnection(id).then(function (data) {
+        if (data.adapter === 'local') rebuildLocalActions(deleteForm, id, data);
+        else rebuildRemoteActions(deleteForm, id);
+      }).catch(function (error) {
+        var actions = deleteForm.parentElement;
+        if (!actions) return;
+        var info = document.createElement('span');
+        info.className = 'bratonien-main-cache__warning';
+        info.textContent = 'Verbindungstyp konnte nicht geladen werden: '+(error.message || String(error));
+        actions.insertBefore(info, deleteForm);
+      });
     });
   });
 })();

js/nc_connector_source_ui.js

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

main.inc.php

@@ -1,7 +1,7 @@
 <?php
 /*
 Plugin Name: Bratonien Tools
-Version: 0.9.6.11
+Version: 0.9.6.16
 Description: Erweiterbare Administrationswerkzeuge fuer die Bratonien-Piwigo-Installation.
 Plugin URI: https://github.com/Terranom674/Piwigo_Bratonien_Tools
 Author: Bratonien

nc-connector-edit-save.php

@@ -18,6 +18,59 @@ function bratonien_tools_nc_edit_json($status, array $payload)
   exit;
 }
 
+function bratonien_tools_nc_edit_fail($message, array $fields = array(), $stage = '', $detail = '')
+{
+  $visible = trim((string)$message);
+  if ($stage !== '') $visible = 'Bereich: '.$stage.' — '.$visible;
+  if ($detail !== '') $visible .= ' Technische Ursache: '.$detail;
+
+  bratonien_tools_nc_edit_json(422, array(
+    'ok'=>false,
+    'message'=>$visible,
+    'stage'=>(string)$stage,
+    'detail'=>(string)$detail,
+    'fields'=>array_values(array_unique($fields)),
+  ));
+}
+
+function bratonien_tools_nc_edit_probe($url, $username = '', $password = '', array $headers = array())
+{
+  if (!function_exists('curl_init'))
+  {
+    return array('ok'=>false, 'http'=>0, 'errno'=>-1, 'error'=>'cURL ist in PHP nicht verfügbar.', 'body'=>'');
+  }
+
+  $ch = curl_init($url);
+  $options = array(
+    CURLOPT_RETURNTRANSFER=>true,
+    CURLOPT_FOLLOWLOCATION=>true,
+    CURLOPT_MAXREDIRS=>3,
+    CURLOPT_CONNECTTIMEOUT=>8,
+    CURLOPT_TIMEOUT=>15,
+    CURLOPT_HTTPHEADER=>array_merge(array('Accept: application/json'), $headers),
+    CURLOPT_USERAGENT=>'Bratonien-Tools-NC-Editor/'.(function_exists('bratonien_tools_current_version') ? bratonien_tools_current_version() : 'dev'),
+  );
+  if ($username !== '')
+  {
+    $options[CURLOPT_HTTPAUTH] = CURLAUTH_BASIC;
+    $options[CURLOPT_USERPWD] = $username.':'.$password;
+  }
+  curl_setopt_array($ch, $options);
+  $body = curl_exec($ch);
+  $errno = curl_errno($ch);
+  $error = curl_error($ch);
+  $http = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);
+  curl_close($ch);
+
+  return array(
+    'ok'=>$body !== false && $errno === 0,
+    'http'=>$http,
+    'errno'=>$errno,
+    'error'=>$error,
+    'body'=>$body === false ? '' : (string)$body,
+  );
+}
+
 if (!defined('BRATONIEN_TOOLS_PATH'))
 {
   bratonien_tools_nc_edit_json(404, array('ok'=>false, 'message'=>'Bratonien Tools ist nicht aktiv.', 'fields'=>array()));
@@ -35,6 +88,176 @@ 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_edit_fail('Die zu bearbeitende Verbindung wurde nicht gefunden.', array(), 'Verbindung');
+  }
+
+  $config = isset($connection['config']) && is_array($connection['config']) ? $connection['config'] : array();
+  $credentials = bratonien_tools_nc_connector_scoped_secret($connection);
+
+  $nextcloud_input = trim((string)($_POST['nc_nextcloud_url'] ?? ($config['nextcloud_url'] ?? '')));
+  $nextcloud_user = trim((string)($_POST['nc_nextcloud_user'] ?? ($credentials['nextcloud_user'] ?? '')));
+  $submitted_nc_password = (string)($_POST['nc_nextcloud_password'] ?? '');
+  $nextcloud_password = $submitted_nc_password !== '' ? $submitted_nc_password : (string)($credentials['nextcloud_password'] ?? '');
+
+  $has_any_nextcloud = $nextcloud_input !== '' || $nextcloud_user !== '' || $nextcloud_password !== '';
+  if ($has_any_nextcloud)
+  {
+    $missing = array();
+    if ($nextcloud_input === '') $missing[] = 'nc_nextcloud_url';
+    if ($nextcloud_user === '') $missing[] = 'nc_nextcloud_user';
+    if ($nextcloud_password === '') $missing[] = 'nc_nextcloud_password';
+    if ($missing)
+    {
+      bratonien_tools_nc_edit_fail(
+        'Die WebDAV-Daten sind unvollständig. Adresse, Benutzer und Passwort werden gemeinsam benötigt.',
+        $missing,
+        'Nextcloud / WebDAV'
+      );
+    }
+
+    try
+    {
+      $candidate_urls = bratonien_tools_nc_wizard_candidate_urls($nextcloud_input);
+    }
+    catch (Throwable $e)
+    {
+      bratonien_tools_nc_edit_fail($e->getMessage(), array('nc_nextcloud_url'), 'Nextcloud / WebDAV');
+    }
+
+    $nextcloud_url = '';
+    $last_probe = null;
+    $last_status_url = '';
+    foreach ($candidate_urls as $candidate_url)
+    {
+      $status_url = $candidate_url.'/status.php';
+      $probe = bratonien_tools_nc_edit_probe($status_url);
+      $last_probe = $probe;
+      $last_status_url = $status_url;
+
+      if (!$probe['ok'] || $probe['http'] < 200 || $probe['http'] >= 300)
+      {
+        continue;
+      }
+
+      $status = json_decode($probe['body'], true);
+      if (!is_array($status) || empty($status['installed']))
+      {
+        continue;
+      }
+
+      $nextcloud_url = $candidate_url;
+      break;
+    }
+
+    if ($nextcloud_url === '')
+    {
+      $attempts = array();
+      foreach ($candidate_urls as $candidate_url)
+      {
+        $attempts[] = $candidate_url.'/status.php';
+      }
+      if (is_array($last_probe) && !$last_probe['ok'])
+      {
+        $technical = $last_probe['errno'] >= 0
+          ? 'cURL '.$last_probe['errno'].($last_probe['error'] !== '' ? ': '.$last_probe['error'] : '')
+          : $last_probe['error'];
+        bratonien_tools_nc_edit_fail(
+          'Die Nextcloud-Adresse ist vom Piwigo-Server aus nicht erreichbar. Ohne angegebenes Protokoll wurden HTTPS und HTTP geprüft.',
+          array('nc_nextcloud_url'),
+          'Nextcloud / WebDAV – Erreichbarkeit',
+          $technical.' · Geprüft: '.implode(' ; ', $attempts)
+        );
+      }
+
+      bratonien_tools_nc_edit_fail(
+        'Unter der angegebenen Adresse wurde keine erreichbare installierte Nextcloud gefunden. Ohne angegebenes Protokoll wurden HTTPS und HTTP geprüft.',
+        array('nc_nextcloud_url'),
+        'Nextcloud / WebDAV – Erkennung',
+        'Geprüft: '.implode(' ; ', $attempts).($last_probe ? ' · Letzter HTTP-Status: '.$last_probe['http'] : '')
+      );
+    }
+
+    $_POST['nc_nextcloud_url'] = $nextcloud_url;
+
+    $user_url = $nextcloud_url.'/ocs/v2.php/cloud/user?format=json';
+    $user_probe = bratonien_tools_nc_edit_probe($user_url, $nextcloud_user, $nextcloud_password, array('OCS-APIRequest: true'));
+    if (!$user_probe['ok'])
+    {
+      $technical = $user_probe['errno'] >= 0
+        ? 'cURL '.$user_probe['errno'].($user_probe['error'] !== '' ? ': '.$user_probe['error'] : '')
+        : $user_probe['error'];
+      bratonien_tools_nc_edit_fail(
+        'Die Nextcloud-Anmeldung konnte technisch nicht geprüft werden.',
+        array('nc_nextcloud_url','nc_nextcloud_user','nc_nextcloud_password'),
+        'Nextcloud / WebDAV – Anmeldung',
+        $technical.' · Ziel: '.$user_url
+      );
+    }
+    if ($user_probe['http'] === 401 || $user_probe['http'] === 403)
+    {
+      bratonien_tools_nc_edit_fail(
+        'Nextcloud hat Benutzername oder Passwort abgelehnt.',
+        array('nc_nextcloud_user','nc_nextcloud_password'),
+        'Nextcloud / WebDAV – Anmeldung',
+        'HTTP '.$user_probe['http']
+      );
+    }
+    if ($user_probe['http'] < 200 || $user_probe['http'] >= 300)
+    {
+      bratonien_tools_nc_edit_fail(
+        'Nextcloud ist erreichbar, aber die Benutzerprüfung wurde vom Server abgelehnt.',
+        array('nc_nextcloud_user','nc_nextcloud_password'),
+        'Nextcloud / WebDAV – Anmeldung',
+        'HTTP '.$user_probe['http'].' · Ziel: '.$user_url
+      );
+    }
+    try
+    {
+      bratonien_tools_nc_wizard_ocs_data($user_probe['body']);
+    }
+    catch (Throwable $e)
+    {
+      bratonien_tools_nc_edit_fail(
+        'Nextcloud antwortet auf die Benutzerprüfung, die Antwort ist aber nicht gültig: '.$e->getMessage(),
+        array('nc_nextcloud_user','nc_nextcloud_password'),
+        'Nextcloud / WebDAV – Anmeldung'
+      );
+    }
+  }
+
+  $api_key_id = trim((string)($_POST['nc_connection_api_key_id'] ?? ($credentials['api_key_id'] ?? '')));
+  $submitted_api_secret = trim((string)($_POST['nc_connection_api_key_secret'] ?? ''));
+  $api_key_secret = $submitted_api_secret !== '' ? $submitted_api_secret : trim((string)($credentials['api_key_secret'] ?? ''));
+  if (($api_key_id === '') !== ($api_key_secret === ''))
+  {
+    $missing = $api_key_id === '' ? array('nc_connection_api_key_id') : array('nc_connection_api_key_secret');
+    bratonien_tools_nc_edit_fail(
+      'API-Schlüssel-ID und API-Geheimnis müssen gemeinsam vollständig sein.',
+      $missing,
+      'Piwigo API'
+    );
+  }
+  if ($api_key_id !== '')
+  {
+    try
+    {
+      bratonien_tools_nc_connector_validate_scoped_api($api_key_id, $api_key_secret);
+    }
+    catch (Throwable $e)
+    {
+      bratonien_tools_nc_edit_fail(
+        'Der Piwigo-API-Zugang konnte nicht bestätigt werden: '.$e->getMessage(),
+        array('nc_connection_api_key_id','nc_connection_api_key_secret'),
+        'Piwigo API'
+      );
+    }
+  }
+
   $result = bratonien_tools_nc_connector_update_local_friendly();
   bratonien_tools_nc_edit_json(200, array(
     'ok'=>true,
@@ -48,33 +271,42 @@ catch (Throwable $e)
   if ($message === '') $message = 'Die Verbindung konnte nicht gespeichert werden.';
 
   $fields = array();
+  $stage = 'Verbindung';
   $add = function($name) use (&$fields)
   {
     if (!in_array($name, $fields, true)) $fields[] = $name;
   };
 
   if (stripos($message, 'Name') !== false && stripos($message, 'Datenbankname') === false) $add('connection_name');
-  if (stripos($message, 'Datenbank-Server') !== false) $add('nc_host');
+  if (stripos($message, 'Datenbank-Server') !== false) { $add('nc_host'); $stage = 'Legacy-Datenbank'; }
-  if (stripos($message, 'Datenbank-Port') !== false) $add('nc_port');
+  if (stripos($message, 'Datenbank-Port') !== false) { $add('nc_port'); $stage = 'Legacy-Datenbank'; }
-  if (stripos($message, 'Datenbankname') !== false) $add('nc_database');
+  if (stripos($message, 'Datenbankname') !== false) { $add('nc_database'); $stage = 'Legacy-Datenbank'; }
-  if (stripos($message, 'Reader-Benutzer') !== false) $add('nc_user');
+  if (stripos($message, 'Reader-Benutzer') !== false) { $add('nc_user'); $stage = 'Legacy-Datenbank'; }
-  if (stripos($message, 'Datenbankpasswort') !== false) $add('nc_db_password');
+  if (stripos($message, 'Datenbankpasswort') !== false) { $add('nc_db_password'); $stage = 'Legacy-Datenbank'; }
-  if (stripos($message, 'Storage-ID') !== false) $add('nc_storage_id[]');
+  if (stripos($message, 'Storage-ID') !== false) { $add('nc_storage_id[]'); $stage = 'Speicherorte'; }
-  if (stripos($message, 'lokaler Pfad') !== false || stripos($message, 'Speicherort') !== false) $add('nc_local_mount[]');
+  if (stripos($message, 'lokaler Pfad') !== false || stripos($message, 'Speicherort') !== false) { $add('nc_local_mount[]'); $stage = 'Speicherorte'; }
-  if (stripos($message, 'Galerieordner') !== false) $add('nc_gallery_root');
+  if (stripos($message, 'Galerieordner') !== false) { $add('nc_gallery_root'); $stage = 'Erweiterte Legacy-Einstellungen'; }
-  if (stripos($message, 'Datenbankansichten') !== false || stripos($message, 'Source-View') !== false) $add('nc_source_view');
+  if (stripos($message, 'Datenbankansichten') !== false || stripos($message, 'Source-View') !== false) { $add('nc_source_view'); $stage = 'Erweiterte Legacy-Einstellungen'; }
-  if (stripos($message, 'Datenbankansichten') !== false || stripos($message, 'Activity-View') !== false) $add('nc_activity_view');
+  if (stripos($message, 'Datenbankansichten') !== false || stripos($message, 'Activity-View') !== false) { $add('nc_activity_view'); $stage = 'Erweiterte Legacy-Einstellungen'; }
 
-  if (stripos($message, 'Nextcloud-Adresse') !== false || stripos($message, 'Unter dieser Adresse') !== false) $add('nc_nextcloud_url');
+  if (stripos($message, 'Nextcloud') !== false)
-  if (stripos($message, 'Nextcloud-Benutzer') !== false || stripos($message, 'Benutzername oder Passwort') !== false || stripos($message, 'Benutzerzugang') !== false) $add('nc_nextcloud_user');
+  {
-  if (stripos($message, 'Nextcloud-Passwort') !== false || stripos($message, 'Benutzername oder Passwort') !== false || stripos($message, 'Benutzerzugang') !== false) $add('nc_nextcloud_password');
+    $stage = 'Nextcloud / WebDAV';
+    if (stripos($message, 'Adresse') !== false) $add('nc_nextcloud_url');
+    if (stripos($message, 'Benutzer') !== false) $add('nc_nextcloud_user');
+    if (stripos($message, 'Passwort') !== false) $add('nc_nextcloud_password');
+  }
+  if (stripos($message, 'API') !== false)
+  {
+    $stage = 'Piwigo API';
+    $add('nc_connection_api_key_id');
+    $add('nc_connection_api_key_secret');
+  }
 
-  if (stripos($message, 'API-Schluessel-ID') !== false || stripos($message, 'API-Key') !== false) $add('nc_connection_api_key_id');
+  bratonien_tools_nc_edit_fail(
-  if (stripos($message, 'API-Geheimnis') !== false || stripos($message, 'API-Key') !== false) $add('nc_connection_api_key_secret');
+    $message,
-
+    $fields,
-  bratonien_tools_nc_edit_json(422, array(
+    $stage,
-    'ok'=>false,
+    'Interne Prüfung: '.get_class($e)
-    'message'=>$message,
+  );
-    'fields'=>$fields,
-  ));
 }

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')
+  );
+}