Pastebin tutorial

This is my attempt at implementing the "what's next?" section of the pastebin tutorial from rocket. Don't use this as a reference, and feedback or alternative implementations are welcomed :)

TODO:

• add a web form to the index where users can manually input new pastes. Accept the form at POST /. Use format and/or rank to specify which of the two POST / routes should be called.
• Add a new route, GET // that syntax highlights the paste with ID for language . If is not a known language, do no highlighting. Possibly validate with FromParam.
• persist in a DB instead of file (diesel+postgres)

WIP:

Done:

• make cleanup thread safe (currently unwrapping all over the place)
• Dispatch a thread before launching Rocket in main that periodically cleans up idling old pastes in upload/.
• add config file
• Use the local module to write unit tests for your pastebin.
• Add a PUT / route that allows a user with the key for to replace the existing paste, if any.
• Support deletion of pastes by adding a new DELETE / route. Use PasteID to validate .
• Limit the upload to a maximum size. If the upload exceeds that size, return a 206 partial status code. Otherwise, return a 201 created status code.
• Set the Content-Type of the return value in upload and retrieve to text/plain.
• Return a unique “key” after each upload and require that the key is present and matches when doing deletion. Use one of Rocket’s core traits to do the key validation.