When creating a content type, you have the option of adding a "file upload" field. How can I extend the functionality of this upload file to allow for the option of simply entering a URL instead of manually downloading the file and uploading it again? I basically want another field, called URL, where I enter the URL of the image. Drupal must then grab the URL as if though I uploaded it. Which means I must be able to "press upload" and actually see the thumbnail as per normal functionality.
I have a site from which we often grab images, but every time I first have to download it. It would save me a lot of trouble if I could just provide the URL and let Drupal do its thing.