Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushed requests must become JWTs
Aaron Parecki <aaron@parecki.com> Thu, 23 July 2020 22:50 UTC
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From: Aaron Parecki <aaron@parecki.com>
Date: Thu, 23 Jul 2020 15:49:50 -0700
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Subject: Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushed requests must become JWTs
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I know this is a bit of an old thread to dig up, but as I'm working through this draft again, something is sticking out to me about this. In every other instance of "*_uri" in OAuth and extensions, the value is a URI (usually https) which will be visited by the user's browser or be sent a POST request from a client. In the case of PAR, this "request_uri" is actually just an identifier that is *added* to an existing URL, the authorization endpoint, not a URL that will be visited itself. This discrepancy is bothering me. I would have expected that either: * The PAR response includes a "request_uri" which is the full URL that the client would redirect the user's browser to, OR * The PAR response includes a "request_id" which it adds in the query string to the authorization endpoint and then redirects the browser to For example: POST /as/par HTTP/1.1 ... response: { "request_uri": " https://as.example.com/auth?request=bwc4JK-ESC0w8acc191e-Y1LTC2", "expires_in": 60 } then the user's browser is sent to whatever the value of "request_uri" is OR POST /as/par HTTP/1.1 ... response: { "request_id": "urn:ietf:params:oauth:request_uri:bwc4JK-ESC0w8acc191e-Y1LTC2", "expires_in": 60 } then the "request_id" is added to the authorization endpoint (as currently described by PAR) https://as.example.com/auth? client_id=s6BhdRkqt3&request_uri=urn%3Aietf%3Aparams %3Aoauth%3Arequest_uri%3Abwc4JK-ESC0w8acc191e-Y1LTC2 My personal preference is the first option, keeping the term "request_uri" but having it actually be the full URI, to simplify the job of the client. In that model, the client doesn't have to mess with building URLs, and actually provides additional flexibility for the AS as well since that endpoint no longer needs to be the exact same URL as the authorization endpoint. --- Aaron Parecki https://aaronparecki.com On Thu, Jan 16, 2020 at 8:25 AM Torsten Lodderstedt <torsten= 40lodderstedt.net@dmarc.ietf.org> wrote: > I just thought about another option. What if we change PAR to not use the > request_uri parameter but a new parameter, e.g. request_id? > > That would decouple both specs. The reason why we use request_uri was to > make the life of clients easier since they can use the standard library > function for request objects to pass the PAR reference to the AS. Is this > worth the trouble? > > Am 16.01.2020 um 16:48 schrieb Justin Richer <jricher@mit.edu>: > > +1 to this approach, and it sounds like JAR might need to come back to go > through another round anyway thanks to the breaking changes the IESG pushed > into it after it left WGLC. > > I’d rather see us get this right than publish something many of us think > is broken. > > Maybe PAR and JAR (and JARM?) end up going out as a bundle of specs. > > — Justin > > >
- [OAUTH-WG] PAR: pushed requests must become JWTs Richard Backman, Annabelle
- Re: [OAUTH-WG] PAR: pushed requests must become J… Torsten Lodderstedt
- Re: [OAUTH-WG] PAR: pushed requests must become J… Richard Backman, Annabelle
- Re: [OAUTH-WG] PAR: pushed requests must become J… Torsten Lodderstedt
- Re: [OAUTH-WG] PAR: pushed requests must become J… Torsten Lodderstedt
- Re: [OAUTH-WG] PAR: pushed requests must become J… Richard Backman, Annabelle
- Re: [OAUTH-WG] PAR: pushed requests must become J… Brian Campbell
- Re: [OAUTH-WG] PAR: pushed requests must become J… John Bradley
- Re: [OAUTH-WG] PAR: pushed requests must become J… Brian Campbell
- Re: [OAUTH-WG] PAR: pushed requests must become J… John Bradley
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Richard Backman, Annabelle
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Justin Richer
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Vladimir Dzhuvinov
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Justin Richer
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Richard Backman, Annabelle
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Brian Campbell
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Benjamin Kaduk
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Vladimir Dzhuvinov
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Vladimir Dzhuvinov
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Richard Backman, Annabelle
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Justin Richer
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Torsten Lodderstedt
- Re: [OAUTH-WG] JARM Torsten Lodderstedt
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Neil Madden
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Filip Skokan
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Dave Tonge
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Filip Skokan
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Neil Madden
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Justin Richer
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: [UNVERIFIE… Richard Backman, Annabelle
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: [UNVERIFIE… Brian Campbell
- Re: [OAUTH-WG] JARM Brian Campbell
- Re: [OAUTH-WG] JARM Takahiko Kawasaki
- Re: [OAUTH-WG] JARM Neil Madden
- Re: [OAUTH-WG] JARM Torsten Lodderstedt
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Aaron Parecki
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Torsten Lodderstedt
- Re: [OAUTH-WG] [UNVERIFIED SENDER] Re: PAR: pushe… Justin Richer