[imp] Attachment corruption due to incorrect mime type

[Ronan SALMON]

Tornoci Laszlo <torlasz at xenia.sote.hu> a écrit :

> Hi,
>
> my problem is, some binary files attached get recognized as  
> plain/text, and as a result are coded as quoted-printable. This  
> leads to corruption of the files, as explained here:
> http://lists.horde.org/archives/imp/Week-of-Mon-20060424/045099.html
>
> If I make a binary file like:
> dd bs=1024 count=10 </dev/urandom > 10kB
> that's full of nonASCII bytes, 'file' says data:
>
> $ file 10kB
> 10kB: data
>
> If I send a message through IMP with '10kB' attached (browser:
> Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.10)  
> Gecko/2009042708 Fedora/3.0.10-1.fc10 Firefox/3.0.10)
>
> it gets attached as plain/text coded as quoted-printable (and gets  
> corrupted).
>
> What really determines the mime-type? Does IMP accept what the  
> browser suggests? (If yes, that's a problem of Firefox). Or does IMP  
> look at the file and may override what the browser suggested? (Then
> it's IMP's fault).
>
> By the way, I have installed the fileinfo PECL thing, as suggested.
>
> test.php returns:
> # MIME Magic Support (fileinfo): Yes
> # MIME Magic Support (mime_magic): Yes
>
> What is causing the problem?

Remove file "mimeTypes.rdf" in Firefox's profile folder and restart Firefox.

Ronan.