strychni0x Media Bridge for Nextcloud & ownCloud

strychni0x Media Bridge adds a “Cloud” tab to the WordPress media modal
(the “Add Media” dialog). From there an administrator can browse the folders of
one or more configured cloud accounts, preview the file names and import images
into the WordPress media library with a single click.

The plugin works with WebDAV-based clouds of the Nextcloud family:

• Nextcloud
• ownCloud

You can connect several accounts of mixed types at the same time and switch
between them with a dropdown in the media dialog.

Imported images become regular WordPress attachments (a copy is downloaded from
the cloud server), so they work with every theme, block and page builder without
any further integration.

The interface is in English and fully translatable. A complete German
translation (de_DE, incl. de_DE_formal) is bundled with the plugin.

Features

• Adds a dedicated “Cloud” tab to the media modal.
• Adds an “Import from cloud” button to the Media Library and the
  “Add New Media File” screen, opening the browser in its own dialog.
• Connect multiple Nextcloud / ownCloud accounts at once and pick
  which one to browse from a dropdown.
• Browse cloud folders via WebDAV.
• Thumbnail previews with a per-account selectable source: use the server’s
  native preview/thumbnail endpoint (default), or have WordPress generate and
  cache the thumbnails itself (useful when the server has preview generation
  disabled – and a reliable fallback for servers whose preview API differs).
• Paginated image listing for folders with many photos.
• Import images as standard WordPress attachments – one at a time or several at
  once via multi-select.
• Access restricted to administrators (the manage_options capability).
• Per-account connection test on the settings screen.

Access control

Every part of the plugin – the settings screen, the REST endpoints and the
JavaScript that renders the “Cloud” tab – requires the manage_options
capability. Non-administrators never receive the script and cannot call the
REST endpoints. The required capability can be changed with the
ncmb_required_capability filter.

External services

This plugin connects to the Nextcloud or ownCloud servers that you configure
on the plugin settings screen. It is not a third-party hosted service operated by
the plugin author; you point it at your own (or your organisation’s) cloud
instances.

What is sent, and when:

• When an administrator opens the “Cloud” tab or clicks the connection test,
  the plugin sends a WebDAV PROPFIND request to the configured server URL
  to list folder contents. The request includes the configured username and
  app password as an HTTP Basic authentication header.
• When the “Cloud” tab shows images, the plugin requests a thumbnail for each
  image from the server’s native preview/thumbnail endpoint (Nextcloud:
  /index.php/core/preview; ownCloud: the files thumbnail API – both
  authenticated) and proxies it to the browser.
  If that returns no preview, or if the account is set to “Generate in
  WordPress”, the plugin downloads the image via WebDAV once, generates a
  thumbnail on the WordPress server and caches it.
• When an administrator imports an image, the plugin sends a WebDAV GET
  request (again authenticated) to download that single file.

No data is sent anywhere other than the server URLs you configure. All requests
originate from your WordPress server, not from the visitor’s browser.

The data handling of each cloud instance is governed by its own operator. Please
refer to the documentation and privacy policy of your provider:

• Nextcloud: https://nextcloud.com/ – Privacy: https://nextcloud.com/privacy/
• ownCloud: https://owncloud.com/ – Privacy: https://owncloud.com/privacy-policy/