URL downloader repository
From MoodleDocs
The URL downloader repository enables users to enter the URL of an image (any type e.g. png, jpg) for copying into Moodle. It may also be used to obtain all images from a web page by entering the web page address. Support for arbitrary file types will be added in MDL-27336.
Repository capabilities
There is just one capability, Use URL downloader in file picker, which is allowed for the default authenticated user role.