RE: [Sip] Support for Multipart/MIME

"Dan Wing" <dwing@cisco.com> Fri, 11 May 2007 06:18 UTC

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From: Dan Wing <dwing@cisco.com>
To: "'Christer Holmberg (JO/LMF)'" <christer.holmberg@ericsson.com>, 'Paul Kyzivat' <pkyzivat@cisco.com>
Subject: RE: [Sip] Support for Multipart/MIME
Date: Thu, 10 May 2007 23:18:22 -0700
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> My point was that you can't determine what types of MIME 
> bodies you have simply by taking the whole SIP message and 
> performing a string search on "Content-Type". Because, some 
> of the Content-Types you will find may not describe what 
> is in a MIME body - it may be part of the MIME body data.

Fully agreed that you could get false positives from such
a test!  But you'll never get a false negative from such
a test.  My point was that if you're trying to optimize, 
and also needing to avoid a UA that is lying, doing a 
search of the Content-Type strings is what you want.

-d


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