From: Taras Koval <kovaltaras@...>
Date: 2007-07-10T00:16:47+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.
>
>
Actually you can use JavaScript to get file size before uploading, I 
know how to do that in IE and FF but there will be a browsers security 
pop ups and user should confirm
that you script will be checking their file system.