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Re: Content-free Header and Body elements

From: Rich Salz <rsalz@datapower.com>
Date: Thu, 15 May 2003 14:50:12 -0400
Message-ID: <3EC3E164.4050609@datapower.com>
To: Christopher B Ferris <chrisfer@us.ibm.com>
CC: xml-dist-app@w3.org

> I won't presume to answer the first part, however per section 5.1 [1], a 
> SOAP Envelope
> must have a soap:Body element information item, although that EII may be 
> empty.

Thanks.  I *thought* so, I just missed it while skimming the spec. 
Perhaps it's time for *me* to get new specs. :)

The more interesting one is the header element; looking forward to 
answers there.
	/r$

> 
> Hence,
> 
> 
>>   <S:Envelope>
>>      <S:Header><tns:foo/></S:Header>
>>   </S:Envelope>
>>and
>>   <S:Envelope>
>>   </S:Envelope>
> 
> 
> are both invalid SOAP messages.
> 
> [1] http://www.w3.org/TR/soap12-part1/#soapenv
> 
> Cheers,
> 
> Christopher Ferris
> Architect, Emerging e-business Industry Architecture
> email: chrisfer@us.ibm.com
> phone: +1 508 234 3624
> 
> xml-dist-app-request@w3.org wrote on 05/15/2003 02:16:20 PM:
> 
> 
>>Are the following messages semantically equivalent (namespace 
>>declarations omitted for brevity)?
>>   <S:Envelope>
>>      <S:Header></S:Header>
>>      <S:Body><tns:foo/></S:Body>
>>   </S:Envelope>
>>and
>>   <S:Envelope>
>>      <S:Body><tns:foo/></S:Body>
>>   </S:Envelope>
>>
>>In other words, if there are no headers, are message processors allowed 
>>to insert/delete an empty Header element?  I believe the answer is yes, 
>>as I can't find text that says otherwise.
>>
>>And what if there are no EII's for the Body, can that be omitted?
>>   <S:Envelope>
>>      <S:Header><tns:foo/></S:Header>
>>   </S:Envelope>
>>and
>>   <S:Envelope>
>>   </S:Envelope>
>>
>>This has implications for message normalization and the ability to sign 
>>SOAP messages.
>>   /r$
>>-- 
>>Rich Salz, Chief Security Architect
>>DataPower Technology         http://www.datapower.com
>>XS40 XML Security Gateway    http://www.datapower.com/products/xs40.html
>>
> 
> 


-- 
Rich Salz, Chief Security Architect
DataPower Technology         http://www.datapower.com
XS40 XML Security Gateway    http://www.datapower.com/products/xs40.html
Received on Thursday, 15 May 2003 14:52:51 GMT

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