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Re: [Uta] smtp-sts-04 JSON

Binu Ramakrishnan <prbinu@yahoo.com> Tue, 25 April 2017 04:22 UTC

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Date: Tue, 25 Apr 2017 04:21:53 +0000
From: Binu Ramakrishnan <prbinu@yahoo.com>
Reply-To: Binu Ramakrishnan <prbinu@yahoo.com>
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Subject: Re: [Uta] smtp-sts-04 JSON
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As an engineer I agree with you and would be hesitant to add additional dependencies to my software. But when we talk about IETF and standards, is it not better to promote widely accepted syntax/format?
Wondering why IETF doesn't have a RFC doc for kv pair syntax.
thanks-binu

      From: Viktor Dukhovni <ietf-dane@dukhovni.org>
 To: uta@ietf.org 
 Sent: Monday, 24 April 2017 3:49 PM
 Subject: Re: [Uta] smtp-sts-04 JSON
   

> On Apr 24, 2017, at 6:34 PM, Binu Ramakrishnan <prbinu@yahoo.com> wrote:
> 
> IMO the main hurdle with key-value format is that we do not have a standard
> format, and by extension off-the-shelf library support. So the question is
> - whether to write custom kv parsers or use a standard format - JSON.

SMTP MTAs already parse key-value pairs in EHLO responses, and ESMTP
extensions to the MAIL FROM and RCPT TO commands.  No additional code
is required to do similar parsing of the policy in question.

JSON is not a standard "format" it is a general syntax, that can 
represent a stream of composite objects.  This is a poor fit in
terms of the libraries needed to support JSON and having to deal
with attributes that hold the wrong kind of data (list instead
of scalar) or multiple objects instead of one...

-- 
    Viktor.

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