From: Travis D Warlick Jr <warlickt@...>
Date: 2007-07-10T06:51:09+09:00
Subject: Re: Get file size before download (noobish question)

John Joyce wrote:
> 
> On Jul 9, 2007, at 3:31 AM, Taras Koval wrote:
> 
>> Guest wrote:
>>> Hi,
>>>
>>> so the subject implies what i want to do, get the file size before
>>> downloading.  i've seen posts about downloading the header, so if
>>> possible, could someone give an example of this code???
>>>
>>> also, for files without a header, i tried using :content_length_proc
>>> within the open-uri class, but it would seem that the file is being
>>> downloaded, then tested for size (from the difference in time for
>>> running my code)
>>>
>>> so if someone has any ideas as to getting filesize of a file (mp3
>>> specifically) without a header... please help!
>>>
>>>
>> That is not possible!
>>
> If you can ask the system the file is stored on, you can get its file size.

It's not possible to ask for a file size/content-length over HTTP.

Maybe FTP, Telnet, SSH, etc, but that's assuming you have a login and
permissions to access the file.

  *************************************
  *  Travis D Warlick, Jr
  *  Lead Developer
  *  Operis Systems, LLC
  *************************************