PastebinAPI for ComputerCraft

-- Pastebin API
-- Created by Sir_Mr_Bman
-- Copyright (c) 2014
-- Feel free to redistribute this program as part of your own programs (if you give me credit)

-- Light-Docs:
--      RETURN CODES (downloader):
--      11: HTTP API is not enabled
--      12: Savefile exists
--      13: Could not connect. Is pastebin down?
--      2: Download complete!

function downloader(paste, savefile)

    if not http then
        return 11
    end
    if fs.exists(textutils.urlEncode(savefile)) then
        return 12
    end

    local pastebin = http.get("http://www.pastebin.com/raw.php?i="..textutils.urlEncode(paste))
    if pastebin then
        local saveTo = pastebin.readAll()
        pastebin.close()
        local file = fs.open(savefile, "w")
        file.write(saveTo)
        file.close()
        return 2
    else
        return 13
    end
end