Use this add-on to automatically mirror/re-host hotlinked images in posts (and other supported content types), storing them as attachments to protect your content if the original image host goes offline or deletes the image.
A rebuild tool is also bundled with the add-on and can be accessed via the admin panel or the command line to re-host images retrospectively.
Features:

This add-on was initially funded by Cameraderie.org.
A rebuild tool is also bundled with the add-on and can be accessed via the admin panel or the command line to re-host images retrospectively.
Features:
- Automatically mirror embedded images and turn them in to attachments when content is saved.
- Support for resizing images that exceed maximum attachment dimensions while preserving EXIF data.
- Supports posts, direct messages, profile posts and profile post comments.
- Domain allow / block list support for granular control.

This add-on was initially funded by Cameraderie.org.