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<p class=MsoNormal>The specification makes a suggestion (section 7.3 bullet 1)
to use a proxy for XRI resolution instead of implementing the XRI resolution
protocol in the Relaying Party. I am not clear as to what extent can / should the
proxy be used for. For example, it can be used to turn ‘=eran’ into
an XRDS document:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><a href="http://xri.net/=eran?_xrd_r=application/xrds+xml">http://xri.net/=eran?_xrd_r=application/xrds+xml</a><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Or it can be used to retrieve an OpenID 1.0 service (BTW,
this does not work at xri.net) and save some effort in parsing an XRDS file:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><a
href="http://xri.freexri.com/=eran?_xrd_r=application/xrd+xml&_xrd_t=http%3a%2f%2fopenid.net%2fsignon%2f1.0">http://xri.freexri.com/=eran?_xrd_r=application/xrd+xml&_xrd_t=http%3a%2f%2fopenid.net%2fsignon%2f1.0</a><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>And last, it can be used to avoid XRI and XRDS altogether
(which I doubt is the intention –but one which might be suggested to RP
not implementing XRI if it is indeed optional):<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><a href="http://xri.net/=eran">http://xri.net/=eran</a><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Which will redirect to an HTML page with OpenID tags
(assuming the RP doesn’t implement Yadis either).<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>However, when using the Yadis, the RP still has to have all
the logic of parsing a full XRDS file which can have multiple XRD elements,
multiple services with priority, and multiple URIs with priority (and append
instructions). Does that mean that proxies should only be used for the first
option?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>=eran<o:p></o:p></p>
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