RE: [SM-USERS] Re: [SM-DEVEL] Forwarded attachments problem on Wi ndows

[Tim S. <Tim...@aq...>]

It may be the browser. In the early days of MP3s IE had an MP3 mime type
setup and would download MP3s fine. Netscape didn't have a mime type setup
and would assume the content was text. It would then helpfully (not) make
sure every lf on its own was changed to a crlf. What your seeing could be
your browser doing something simular.

Tim Saunders

> -----Original Message-----
> From:	its...@uk... [SMTP:its...@uk...]
> Sent:	29 August 2002 12:19
> To:	squ...@li...
> Cc:	squ...@li...
> Subject:	[SM-USERS] Re: [SM-DEVEL] Forwarded attachments problem on
> Windows
> 
> On Thu, Aug 29, 2002 at 11:51:25AM +0200, Marc Groot Koerkamp wrote:
> > > If you are running Squirrelmail on a Windows server, binary
> attachments
> > > in forwarded messages can become corrupted by lf->crlf conversion.  It
> > > seems the translation is always applied but some attachments (e.g.
> Word
> > > documents) are more vulnerable than others.  This happens on both
> stable
> > > and development versions.
> > >
> > > I'm going to plough through the code to try and find the problem point
> > > but if someone who actually knows that code can point to the likely
> > > cause it'd be helpful.
> > >
> > > --
> > > Bruce
> > 
> > Line 206 in the devel branche.
> > The filesize 570 seems a little weird. I would choose a multiple of 76
> and 570
> > = 7.5 time 76
> > 
> > I think that's causing corruptions.
> > 
> > We do not do any lf->crlf conversion with binary attachments.
> 
> It's puzzling.  Further investigation shows it not happening at all to
> most types of files.  But if I forward messages with attached word
> documents, the document that arrives has had every single lf character
> converted into a crlf pair.  It's definitely something that happens on
> sending because the corruption is there no matter what client I use to
> access the mail.
> 
> Just checked, this is also happening to Word files, and jpeg documents.
> But not text files, no matter how big.  So what must be happening is
> that some output function (possibly a builtin PHP one) that on *nix
> prints lf is printing crlf on Windows.  Tracking that down could be
> difficult.
> 
> 
> -- 
> Bruce
> 
> 
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