Re: [Imap-protocol] IMAP part numbering corner case

On Fri, 17 Aug 2012, Timo Sirainen wrote:
> On 17.8.2012, at 7.17, Philip Guenther wrote:
> >> [Outlook, I'm pretty sure, but it doesn't implement ID]:
> >> BODY[TEXT]: The entire inner message
> >> BODY[1]: The entire inner message
> >> BODY[1.1]: NIL
> > 
> > This violates this paragraph from RFC 3501, page 55:   
> >         A part of type MESSAGE/RFC822 also has nested part numbers,
> >         referring to parts of the MESSAGE part's body.
> > 
> > ...which when combined with the first quote above, means that "1.1" 
> > should be a valid specifier for the inner message's content.
> 
> Is it valid? 1.1 makes sense when it's a multipart, in which case it 
> refers to the first MIME part, but is it valid when ther's no multipart? 
> Looks like UW-IMAP allows it, but not 1.1.1, so maybe it was meant to be 
> valid. I could add it to my tests..

Flip it around.  Given a message, if you nest it inside another message as 
a message/rfc822 part, the addressing of its parts are formed by 
concatenating the addressing of the part it is nested as and the parts 
inside it.

Given this message
-----
Date: Fri, 01 Jan 2012 12:00 -0500
To: [email protected]
From: [email protected]
Subject: Blast from the future
MIME-Version:1.0
Content-Type: text/plain

Do you know what to do when you see this message?

-----

it has a single part, which can be addressed with the specifier "1".  So, 
if you nest it

-----
Date: Fri, 01 Jan 2010 12:00 -0500
To: [email protected]
From: [email protected]
Subject: download on demand problem
MIME-Version: 1.0
Content-Type: message/rfc822

Date: Fri, 01 Jan 2012 12:00 -0500
To: [email protected]
From: [email protected]
Subject: Blast from the future
MIME-Version:1.0
Content-Type: text/plain

Do you know what to do when you see this message?

-----

The entire inner message is "1", so the text of the inner message is the 
concatenation "1.1".


Philip Guenther
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