Posted by Andr� Medeiros on 07/30/05 20:40

You might want to read up on this:

http://en.wikipedia.org/wiki/Magic_number_%28programming%29

On 7/30/05, Sebastian <sebastian@broadbandgaming.net> wrote:
> i know i shouldn't rely on mime types for file verification but anyways..
>
> I use application/zip which works fine on firefox and only allows zips..
> however, on Internet explorer it doesn't work since IE returns
> application/x-zip-compressed for zips.. problem with this is it also
> allow rar files.. so even checking mime types is just as useless as not
> using it.. one mime type allows two different file types. pffft.
>
>
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