Nat,

I never proposed anything that involved XRD 1.0.

Only adding some additional elements to the return_to Service in the existing 
RP XRDS.

I understand that that you want fetch to support CX.   I think it is a good 
thing.

However we are making a trade off in scope by including something that I don't 
think is as high a priority for most of the large IdP.

John B.
On 2009-11-19, at 12:22 PM, Nat Sakimura wrote:

> John, 
> 
> Well, AX uptake in RP is not that great, unfortunately, to start with. 
> Realistically, if they want to take advantage of AX, they have to do some 
> programming anyways. So, achieving by just config change is not so realistic. 
> Updating libraries would be orders smaller task than re-programming the 
> application logic, if you are using a third party library. (If you are 
> writing your own, that is another story, but majority of the people are just 
> using somebody else's library.) 
> 
> Moreover, even if your library is not supporting fetch parameters, it is not 
> that complex to add it. Just concatenate the ax.value.<alias>=value to the 
> end of the query. OpenID requests are not signed right now, so it is not hard 
> to do at all. Not to mention that many RPs actually does not provide sensible 
> XRDS right now. IMHO, it is easier for those RP to add a request parameter 
> than to write an XRDS. 
> 
> From the use case point of view, I have bunch of people waiting for this kind 
> of feature around me. I could built it into CX, of course, and I did in fact 
> in an earlier draft, but it is more generic than that. That was one of the 
> reason for putting forward fetch parameter in AX1.1, and it is immensely 
> useful. ROI for doing it is rather high. 
> 
> Also remember that the resource descriptor document is still at limbo. We 
> could probably finish off AX1.1 faster than that, independently. 
> 
> One of the promised quality of OpenID was that it is fast moving. We have 
> lost that long since. We should come back to the basic principle now. 
> 
> =nat
> 
> 
> 
> On Thu, Nov 19, 2009 at 11:49 PM, John Bradley <[email protected]> 
> wrote:
> Nat,
> 
> I understand why people want a fetch parameter.  I would like it, or 
> something like it as well.
> 
> However I think that is AX 2.0 work.
> 
> Anything that requires code changes at the RP will slow adoption.
> 
> I think we should limit AX 1.1 to practical things we can accomplish through 
> config changes at the RP.
> 
> Yes OP's will need some changes.
> 
> My argument is adoption if code changes are required RP's will tend to wait 
> for AX 2.0.
> 
> There is also the slippery slope argument.   Why make a code change that for 
> fetch as opposed to something else.   
> 
> I also have a suspicion that to do fetch properly at the RP it will require 
> rethinking a bunch of things to use it.
> 
> I think we should add 1 Privacy Policy and 1 TOS in the RP's XRDS,  and 
> define the SREG compatible AX attributes (short if possible).  
> 
> I think fetch and the RP sending more specific Privacy policy are AX 2.0 
> features.
> 
> I am uncharacteristically making an argument for practicality.
> Fix what we can quickly, and have it implemented by those that want it in 
> weeks not years.
> 
> John B.
> 
> On 2009-11-19, at 1:21 AM, Nat Sakimura wrote:
> 
>> Hi.
>> 
>> 
>> 
>> 
>> To separate out the 2.0 and 1.1 discussion, I have created a new
>> separate charter for AX 1.1
>> 
>> 
>> 
>> https://openid.pbworks.com/OpenID_Attribute_Exchange_Extention_1_1
>> 
>> 
>> 
>> Regards, 
>> 
>> 
>> 
>> =nat
>> 
>> _______________________________________________
>> specs mailing list
>> [email protected]
>> http://lists.openid.net/mailman/listinfo/openid-specs
> 
> 
> _______________________________________________
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> 
> 
> 
> 
> -- 
> Nat Sakimura (=nat)
> http://www.sakimura.org/en/

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