[wp-hackers] something wrong with wp_unique_filename()

Ryan Boren ryan at boren.nu
Wed Jun 17 17:01:48 GMT 2009

On Wed, Jun 17, 2009 at 6:42 AM, Davit Barbakadze<jayarjo at gmail.com> wrote:
> I was messing with wp_handle_upload()
> (http://phpxref.com/xref/wordpress/wp-admin/includes/file.php.source.html#l207)
> recently (trying to use it for my own uploads). It has a built-in
> support for error generating and file naming operations override
> (kinda twisted one). Or so it looks. Error reporting is ok. Unique
> file name generation override seems wrong.
> Here is the code:
> http://phpxref.com/xref/wordpress/wp-includes/functions.php.source.html#l1883
> Function takes optional argument - $unique_filename_callback, that
> should point (if it is supplied) to the user-defined unique name
> generating function. Now the problem is that default logic flow has
> access to filename extension and callback doesn't. Hence it's
> impossible to generate unique filename with proper extension manually.
> Has anyone ever used this function?

I'm guessing not since that is definitely not useful behavior.  We can
try passing the extension as a third argument.

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