[Mimedefang] BUG: filter_bad_filename doesn't expect a space

[David F. Skoll]

On Mon, 3 Mar 2003, Jay Levitt wrote:

> The following line in mimedefang-filter:
>     $re = '\.' . $bad_exts . '\.*([^-A-Za-z0-9_.,]|$)';
> will improperly match this filename (not including the quotes):
> "test.com example.txt"

That's a feature, not a bug. :-)  Consider these two malformed MIME headers:

Content-Disposition: attachment; filename=test.com example.txt
Content-Disposition: attachment; filename=example.txt test.com

Consider the myriad ways buggy MUA's might handle that, and then you
understand the reason behind the excessively-conservative regular
expression.


--
David.