Downloader

-- load function for LEOS (LEOS is made by mikesch96 and evoliprofi and EuroCreeper)
function downloadmenue(option,x,y)
    term.clear()
    term.setCursorPos(x,y)
    ret = nil
    if option == 1 then
            print ("->rootreader")
            ret = nil
        else
            print ("  rootreader")
    end
    term.setCursorPos(x,y+1)
    if option == 2 then
            print ("->LEOS installer")
            ret = nil
        else
            print ("  LEOS installer")
    end
    term.setCursorPos(x,y+2)
    if option == 3 then
            print ("->RC_Drone")
            ret = "http://dl.dropboxusercontent.com/u/25121005/RC_Drone.txt"
        else
            print ("  RC_Drone")
    end
    term.setCursorPos(x,y+3)
    if option == 4 then
            print ("->RC_Computer")
            ret = "http://dl.dropboxusercontent.com/u/25121005/RC_Computer.txt"
        else
            print ("  RC_Computer")
    end
    return ret
end
function rundownloadmenue()
    term.clear()
    print("make your selection and then hit return/enter")
    running = true
    option = 1
    while running do
        ret = downloadmenue(option,20,6)
        e,key = os.pullEvent( "key" )
        if key == 208 then
            if option > 3 then
                option = 1
            else
                option = option + 1
            end
        elseif key == 200 then
            if option < 2 then
                option = 4
            else
                option = option - 1
            end
        elseif key == 28 then
            running = false
        end
    end
    print("selection will be used")
    return ret
end

-- run the downloader
print("type filename:")
local filename = read()
if filename == "+" then
    print ("type filename again:")
    local filename = read()
    print ("wich data you want to download?")
    local path = rundownloadmenue()
    if path == nil then
        print ("no path given for this programm yet")
    else
        local url = http.get(path)
        f = fs.open(filename, "w")
        f.write(url.readAll())
        f.close()
        print("Downloaded")
    end
else -- when a normal filename was typed run this
    print("type url here:")
    local url = http.get(read())
    f = fs.open(filename, "w")
    f.write(url.readAll())
    f.close()
    print("Downloaded")
end