Subject: [Simple] Usage of Contact header in PUBLISH for application authenticatio n ?

From: Boehmer Bernhard ICM Berlin <[email-masked]>
Date: Wed, 20 Oct 2004 11:21:50 +0200

Hi,
currently we consider the following scenario for PUBLISH:
An application is publishing on behalf of a user (presentity)
some presence information. However, the presence server needs
a means to authenticate the application server. The idea was 
to use the Contact-header for this purpose since the From-header
is used to carry the presentity's address. However, the PUBLISH
draft says:
"The PUBLISH request MAY contain a Contact header field, but including
 one in a PUBLISH request has no meaning in the event publication
 context and will be ignored by the ESC." 

Later in the draft, ignoring the contact header is even mandated. 
Could someone help me with this issue, please?

			Regards Bernhard
___________________________
 Dr. Bernhard Böhmer
 Systems Engineering
 Siemens AG Communications,
 Mobile Networks AS BD C
 Siemensdamm 50, Berlin
 Fon: +49-30-386-22756
 Mobile: +49-178-7700119

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