Internal server Error with SFTP root

[hiFloh]

Describe the bug

I have a nextcloud instance running where the root/home of a user is included using SFTP and the external storage app of Nextcloud. When this user opens ncDownloader he gets "internal server Error" and in the logs the following error message appears.

[index] Error: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class OCA\Files_External\Lib\Storage\SFTP does not have a method "getLocalFolder"

GET /apps/ncdownloader/
from 192.168.1.10 by user at 2022-06-10T07:00:24+00:00

To Reproduce Steps to reproduce the behavior:

1. add external storage for a user at /
2. as this user open ncDownloader
3. error page appears

Expected behavior ncDownloader should open

Screenshots

Desktop (please complete the following information):

• OS: Windows 10
• Browser firefox 101.0(64-Bit)
• Browser chrome 1.0.2.5005.63

Server

• hosting docker
• version 22.2.8
• apps

  occ $ app:list
  Enabled:
  - accessibility: 1.8.0
  - activity: 2.15.0
  - appointments: 1.12.6
  - apporder: 0.15.0
  - approval: 1.0.9
  - audioplayer: 3.3.0
  - bruteforcesettings: 2.4.0
  - calendar: 3.3.1
  - camerarawpreviews: 0.7.15
  - carnet: 0.24.5
  - checksum: 1.1.4
  - circles: 22.3.1
  - cloud_federation_api: 1.5.0
  - comments: 1.12.0
  - contacts: 4.0.4
  - contactsinteraction: 1.3.0
  - cookbook: 0.9.12
  - dashboard: 7.2.0
  - dav: 1.20.0
  - drawio: 1.0.2
  - event_update_notification: 1.5.0
  - extract: 1.3.5
  - federatedfilesharing: 1.12.0
  - federation: 1.12.0
  - files: 1.17.0
  - files_antivirus: 3.3.0
  - files_downloadactivity: 1.13.0
  - files_external: 1.13.1
  - files_markdown: 2.3.6
  - files_mindmap: 0.0.26
  - files_pdfviewer: 2.3.1
  - files_rightclick: 1.1.0
  - files_sharing: 1.14.0
  - files_snapshots: 1.0.4
  - files_trashbin: 1.12.0
  - files_versions: 1.15.0
  - files_videoplayer: 1.11.0
  - firstrunwizard: 2.11.0
  - forms: 2.5.1
  - impersonate: 1.9.0
  - integration_github: 1.0.2
  - integration_gitlab: 1.0.3
  - integration_moodle: 1.0.2
  - integration_whiteboard: 0.0.14
  - logreader: 2.7.0
  - lookup_server_connector: 1.10.0
  - maps: 0.1.10
  - metadata: 0.16.0
  - ncdownloader: 0.9.37
  - nextcloud_announcements: 1.11.0
  - notes: 4.3.1
  - notifications: 2.10.1
  - oauth2: 1.10.0
  - occweb: 0.1.0
  - onlyoffice: 7.3.4
  - password_policy: 1.12.0
  - passwords: 2021.12.20
  - photos: 1.4.0
  - privacy: 1.6.0
  - provisioning_api: 1.12.0
  - recommendations: 1.1.0
  - riotchat: 0.13.0
  - serverinfo: 1.12.0
  - settings: 1.4.0
  - sharebymail: 1.12.0
  - sociallogin: 4.13.1
  - socialsharing_email: 2.5.0
  - spreed: 12.2.6
  - support: 1.5.0
  - survey_client: 1.10.0
  - systemtags: 1.12.0
  - tasks: 0.14.4
  - terms_of_service: 1.8.5
  - text: 3.3.1
  - theming: 1.13.0
  - twofactor_backupcodes: 1.11.0
  - unsplash: 1.2.5
  - updatenotification: 1.12.0
  - uppush: 1.0.1
  - user_saml: 5.0.2
  - user_status: 1.2.0
  - video_converter: 1.0.5
  - viewer: 1.6.0
  - weather_status: 1.2.0
  - workflowengine: 2.4.0
  Disabled:
  - admin_audit
  - duplicatefinder: 0.0.12
  - encryption
  - files_bpm: 0.2.1
  - oidc_login: 2.3.2
  - social
  - user_ldap
  - user_oidc: 1.2.0

  Additional context other users without their root folder beeing external ncDownloader opens with no problems.

[shiningw]

Hi, Sorry, ncdownloader currently doesn't support downloading to file systems that are not local