Re: draft-ietf-sip-info-events-00: Content-Type vs Info-Package [was RE: draft-ietf-sip-info-events-00: multiple packages per INFO]

Oh, sorry. I didn't really mean "find". I meant "choose the appropriate 
body part".

	Paul

Christer Holmberg wrote:
> Hi, 
> 
>> For SDP, you find the part by looking for the one with 
>> Content-Disposition:session. If there is a part with no C-D 
>> header then one with a C-T of application/sdp defaults to 
>> "session". So its all about C-D.
> 
> The C-D header gives you information about the body, yes, but I don't
> think it helps you to FIND the body.
> 
> That's what the SIP and MIME ABNFs are for.
> 
> Regards,
> 
> Christer
> 
> 
> 
> 
> 
>> 	Paul
>>
>> Christer Holmberg wrote:
>>> Hi,
>>>
>>>> I do think there is something we haven't discussed: how do 
>> we figure 
>>>> out what part of the overall body is the part that carries the 
>>>> package?
>>>> Normally this is no issue, since it is the entire body of the INFO 
>>>> message. But there are cases where it might not be. For 
>> instance if 
>>>> S/MIME is used, or if there is some header in the message 
>> the needs 
>>>> to reference a body part from a CID URI.
>>>>
>>>> The answer to this goes back to Content-Disposition. The body part 
>>>> that contains the info package should have a unique C-D.
>>>> That can be "render", or we could pick some other one.
>>> I believe the mime rules are something like:
>>>
>>> --boundary
>>> Mime-headers
>>> Empy-line
>>> Content (SDP, info packet, etc)
>>> --boundary--
>>>
>>>
>>> For SIP, the ruleas are:
>>>
>>> SIP-part
>>> Empty-line
>>> Message body (SDP, info packet - or one of more mimes).
>>>
>>>
>>> I guess the question is whether we should define some 
>> generic syntax 
>>> for the info packages, e.g. Something which identifies the 
>> beginning 
>>> of an info package.
>>>
>>> For SDP, you find the beginning by looking for the v= parameter.
>>>
>>> Regards,
>>>
>>> Christer
>>>
> 
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