One-time ("Self-destructing") downloads
(more precisely: downloads that can only be claimed by one person):

E.g. I have a large video I want to let my dad download, and then I want to have it delete.
Or, I ordered have a pdf of a file to give away to the first student who gets some extra-credit.

A site where you can place a file and email somebody else a download key.
Then, after one download, the file is deleted (and acknowledgement emails are sent).

- Never re-use URLs, of course.
- Can(must?) specify a time-window.
- let a user just give their email, to see all their pending downloads
  [the system would have to send a confirmation-key to that email first, for verification]
- The provider can see what files are still-unclaimed, and (perhaps) the history of when other
  files were claimed, and by whom.

- optional: allow sending *several* URLs (to different people), but only keep one underlying copy of the file
- Allow limited re-downloads (with separate key [like prev. point]),
  or some users have separate number of re-tries.
- allow for "view" URLs separate from "download" URLs
- allow for easy-to-remember URLs that are still randomish -- perhaps three fairly-common nouns like "kiwi telescope sycamore"
  (allow them entered in any order).   That way, I can just tell somebody in the hallway, and they might be able to remember.
  (Perhaps if they remember any three out of four, it allows the download.)
- allow a re-try if it doesn't succeed.  
- [Some javascript that can check/confirm whether the download succeeded? -- on-completion, it finds the download-dir name,
   and checks the hashcode]


Contact: ibarland