I agree with the proposed text On Mon, 14 Dec 2020 at 14:46, Brian Campbell <bcampbell= 40pingidentity....@dmarc.ietf.org> wrote:
> Thanks Vladimir, that seems quite reasonable. Barring any objections, I'll > add that to a -04. > > On Mon, Dec 14, 2020 at 1:33 AM Vladimir Dzhuvinov < > vladi...@connect2id.com> wrote: > >> Hi Brian, >> >> I'd like to propose the sentence in bold to be inserted into the current >> section 2.3 of PAR -04: >> >> https://tools.ietf.org/html/draft-ietf-oauth-par-04#section-2.3 >> >> The authorization server returns an error response with the same format >> as is specified for error responses from the token endpoint in Section 5.2 >> of [RFC6749] using the appropriate error code from therein or from Section >> 4.1.2.1 >> of [RFC6749]. *In those cases where Section 4.1.2.1 of [RFC6749] >> prohibits automatic redirection with an error back to the requesting client >> and hence doesn’t define an error code, for example when the request fails >> due to a missing, invalid, or mismatching redirection URI, the >> “invalid_request” error code can be used as the default error code.* >> >> Hope with this we can close the case. >> >> Vladimir >> >> On 04/12/2020 18:08, Brian Campbell wrote: >> >> >> >> On Fri, Dec 4, 2020 at 12:30 AM Vladimir Dzhuvinov < >> vladi...@connect2id.com> wrote: >> >>> If people have articulated a need to have an invalid_redirect_uri error >>> for the PAR endpoint, then let's register it properly. Rifaat says there's >>> still time to do this. >>> >> >> Following from the response I recently sent to Neil, I don't think a >> legitimate need has been articulated. >> https://mailarchive.ietf.org/arch/msg/oauth/gMiH1mTr0AKDvWpqO1zikcVUySY/ >> >> >>> I'm also okay with using the general invalid_request code for this. In >>> this case a sentence, next to the current example, spelling out what the >>> PAR endpoint must do on a invalid redirect URI will help. >>> >> I don't know that that's needed either. But do have some text to suggest >> that you think would be helpful? >> >> >> >>> Vladimir >>> On 03/12/2020 13:49, Rifaat Shekh-Yusef wrote: >>> >>> Torsten, Filip, >>> >>> You can absolutely make this change, as we are still very early in the >>> process. >>> So feel free to continue this effort and try to get WG agreement on >>> this, and update the document as needed. >>> >>> Regards, >>> Rifaat >>> >>> >>> On Thursday, December 3, 2020, Filip Skokan <panva...@gmail.com> wrote: >>> >>>> To be clear, I'm not advocating to skip the registration, just wanted >>>> to mention a potential concern. If the process allows it and it will not >>>> introduce more delay to publication, I think we should go ahead and >>>> register the error code. >>>> >>>> Best, >>>> *Filip* >>>> >>>> >>>> On Thu, 3 Dec 2020 at 11:06, Torsten Lodderstedt < >>>> tors...@lodderstedt.net> wrote: >>>> >>>>> >>>>> >>>>> > Am 03.12.2020 um 09:56 schrieb Filip Skokan <panva...@gmail.com>: >>>>> > >>>>> > There are several documents already mentioning >>>>> "invalid_redirect_uri" as an error code, specifically RFC7519 and OpenID >>>>> Connect Dynamic Client Registration 1.0. But these don't register it in >>>>> the >>>>> IANA OAuth Extensions Error Registry, presumably because they're neither >>>>> for the authorization or token endpoints. >>>>> > >>>>> > While I think it'd be great if we had this error code registered, I >>>>> also worry that its registration could confuse implementers to think it's >>>>> okay to return it from the authorization endpoint. >>>>> >>>>> I understand your concern. On the other hand, registering the error >>>>> code is in my opinion the proper way forward. The registration is scoped >>>>> to >>>>> a usage location, should be pushed authorization endpoint then, and >>>>> RFC6749 >>>>> gives clear guidance on how to treat errors related to the redirect URI at >>>>> the authorization endpoint. >>>>> >>>>> "If the request fails due to a missing, invalid, or mismatching >>>>> redirection URI, … authorization server ... MUST NOT automatically >>>>> redirect the user-agent to the >>>>> invalid redirection URI." >>>>> >>>>> I think if an implementor ignores this, it will ignore any advise. >>>>> >>>>> best regards, >>>>> Torsten. >>>>> >>>>> > >>>>> > Best, >>>>> > Filip >>>>> > >>>>> > >>>>> > On Thu, 3 Dec 2020 at 00:29, Brian Campbell <bcampbell= >>>>> 40pingidentity....@dmarc.ietf.org> wrote: >>>>> > During the course of a recent OIDF FAPI WG discussion (the FAPI >>>>> profiles use PAR for authz requests) on this issue it was noted that >>>>> there's no specific error code for problems with the redirect_uri (the >>>>> example in >>>>> https://www.ietf.org/archive/id/draft-ietf-oauth-par-04.html#section-2.3 >>>>> even shows a general error code with mention of the redirect_uri not being >>>>> valid in the error description). Some folks on that call thought it would >>>>> be worthwhile to have a more specific error code for an invalid >>>>> redirect_uri and I reluctantly took an action item to raise the issue >>>>> here. >>>>> At the time I'd forgotten that PAR had already passed WGLC. But it's been >>>>> sitting idle while awaiting the shepherd writeup since mid September so >>>>> it's maybe realistic to think the window for a small change is still open. >>>>> > >>>>> > Presumably nothing like an "invalid_redirect_uri" error code was >>>>> defined in RFC 6749 because that class of errors could not be returned to >>>>> the client via redirection. But the data flow in PAR would allow for a >>>>> "invalid_redirect_uri" so it's not an unreasonable thing to do. >>>>> > >>>>> > As I write this message, however, I'm not personally convinced that >>>>> it's worth making a change to PAR at this point. But I did say I'd bring >>>>> the question up in the WG list and I'm just trying to be true to my word. >>>>> So here it is. Please weigh in, if you have opinions on the matter. >>>>> > >>>>> > >>>>> > >>>>> > CONFIDENTIALITY NOTICE: This email may contain confidential and >>>>> privileged material for the sole use of the intended recipient(s). Any >>>>> review, use, distribution or disclosure by others is strictly prohibited. >>>>> If you have received this communication in error, please notify the sender >>>>> immediately by e-mail and delete the message and any file attachments from >>>>> your computer. Thank you._______________________________________________ >>>>> > OAuth mailing list >>>>> > OAuth@ietf.org >>>>> > https://www.ietf.org/mailman/listinfo/oauth >>>>> > _______________________________________________ >>>>> > OAuth mailing list >>>>> > OAuth@ietf.org >>>>> > >>>>> https://www.google.com/url?q=https://www.ietf.org/mailman/listinfo/oauth&source=gmail-imap&ust=1607590629000000&usg=AOvVaw3aW1gdv4EEiLmNYzlsJj-A >>>>> >>>>> >>> >>> _______________________________________________ >>> OAuth mailing list >>> OAuth@ietf.org >>> https://www.ietf.org/mailman/listinfo/oauth >>> >> >> *CONFIDENTIALITY NOTICE: This email may contain confidential and >> privileged material for the sole use of the intended recipient(s). Any >> review, use, distribution or disclosure by others is strictly prohibited. >> If you have received this communication in error, please notify the sender >> immediately by e-mail and delete the message and any file attachments from >> your computer. Thank you.* >> >> -- >> Vladimir Dzhuvinov >> >> > *CONFIDENTIALITY NOTICE: This email may contain confidential and > privileged material for the sole use of the intended recipient(s). Any > review, use, distribution or disclosure by others is strictly prohibited. > If you have received this communication in error, please notify the sender > immediately by e-mail and delete the message and any file attachments from > your computer. 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