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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