Re: [Extra] Martin Duke's No Objection on draft-ietf-extra-imap-fetch-preview-09: (with COMMENT)

[Martin Duke <[e-mail]>]

That would be fine.

On Tue, Sep 22, 2020, 20:38 Michael Slusarz <
[e-mail]> wrote:

> > On 09/22/2020 12:57 PM Martin Duke via Datatracker <[e-mail]>
> wrote:
> >
> > ----------------------------------------------------------------------
> > COMMENT:
> > ----------------------------------------------------------------------
> >
> > I don't understand the purpose of the phrase "and that decision won't
> change
> > later" in Section 3.2. Even if the decision were to change later, if
> there is
> > nothing to present there will still be an empty response, no?
>
> Agreed that this is confusing phrasing.  What if we just dropped "and the
> decision won't change later"?  So that section becomes:
>
>     It is possible that the server has determined that no meaningful
> preview text can be
>     generated for a particular message.  Examples of this involve
> encrypted messages, content
>     types the server does not support previews of, and other situations
> where the server is not
>     able to extract information for a preview.
>
> I think the "and the decision won't change later" was originally added to
> distinguish between the case where a server cannot create a preview based
> on the current message data vs. the case where the server has not yet
> finished creating the preview due to resource limitations.  However, I
> think the language in the rest of the document make clear that NIL is only
> returned if 1) the LAZY modifier is used and 2) the preview has not yet
> been generated.  Otherwise, a server will always return an empty string
> indicating that it cannot develop a meaningful preview from the message
> data.
>
> michael
>