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Re: [OAUTH-WG] WGLC for OAuth 2.0 Device Flow for Browserless and Input Constrained Devices

Rifaat Shekh-Yusef <rifaat.ietf@gmail.com> Tue, 02 January 2018 21:30 UTC

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From: Rifaat Shekh-Yusef <rifaat.ietf@gmail.com>
Date: Tue, 02 Jan 2018 16:30:38 -0500
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To: William Denniss <wdenniss@google.com>
Cc: Vladimir Dzhuvinov <vladimir@connect2id.com>, oauth <oauth@ietf.org>
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Subject: Re: [OAUTH-WG] WGLC for OAuth 2.0 Device Flow for Browserless and Input Constrained Devices
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William,

I will start working on the write-up soon.

Regards,
 Rifaat



On Tue, Jan 2, 2018 at 4:07 PM, William Denniss <wdenniss@google.com> wrote:

>
> On Fri, Dec 15, 2017 at 11:12 PM, Vladimir Dzhuvinov <
> vladimir@connect2id.com> wrote:
>
>> On 15/12/17 00:43, William Denniss wrote:
>> > On Fri, Dec 8, 2017 at 11:42 AM, Vladimir Dzhuvinov <
>> vladimir@connect2id.com
>> >> wrote:
>> >> Hi,
>> >>
>> >> I just got a question on Twitter about the slow_down error:
>> >>
>> >> https://tools.ietf.org/html/draft-ietf-oauth-device-flow-07#
>> section-3.5
>> >>
>> >> The question was why slow_down is communicated via HTTP status code 400
>> >> and not 429 (Too Many Requests).
>> >>
>> > We could, it seems to match the intent of that error code. Main reason
>> it's
>> > not like that so far is that 400 is the default for OAuth, I fear people
>> > may not be checking for a 429. We don't strictly *need* the 429, since
>> > we're returning data in machine readable format one way or another (i.e.
>> > it's easy for the client to extract the "slow_down" response either
>> way),
>> > which differs from HTML over HTTP which is intended for end-user
>> > consumption, making the specific status code more important.
>> Yes, on a 400 clients will need to check the error JSON object anyway,
>> so the "slow_down" cannot be missed. Whereas with 429 that becomes more
>> likely.
>>
>> +1 to return "slow_down" with status 400 as it is with the other OAuth
>> error codes.
>>
>
> Thanks for considering this Vladimir. To conclude this topic, it seems
> there are no compelling reasons to change to the 429, and a reasonable
> explanation of why it's a 400, so I think we should keep things as-is.
>
> Rifaat: The deadline has passed on the WGLC, and I believe all comments
> raised have been addressed. Can we now advance the draft?
>
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