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<p class=MsoNormal>Folks,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Google appears to have Webfinger enabled on some accounts,
at least. You can see it with this:<o:p></o:p></p>
<p class=MsoNormal>curl <a href="http://gmail.com/.well-known/host-meta">http://gmail.com/.well-known/host-meta</a><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>That returns this:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'><?xml
version='1.0' encoding='UTF-8'?><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'><!--
NOTE: this host-meta end-point is a pre-alpha work in progress.
Don't rely on it. --><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'><!--
Please follow the list at http://groups.google.com/group/webfinger --><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'><XRD
xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0' <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'>
xmlns:hm='http://host-meta.net/xrd/1.0'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'>
<hm:Host xmlns='http://host-meta.net/xrd/1.0'>gmail.com</hm:Host><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'>
<Link rel='lrdd' <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'>
template='http<span style='color:#00B050'>://www.google.com/s2/webfinger/?q={uri}</span>'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'>
<Title>Resource Descriptor</Title><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'>
</Link><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'></XRD><o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Now, querying the LRDD URL like this:<o:p></o:p></p>
<p class=MsoNormal>curl http://www.google.com/s2/webfinger/?q=acct:<user>@gmail.com<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>will return an XRD document, one of whose members is this:<o:p></o:p></p>
<p class=MsoNormal><Link rel='http://specs.openid.net/auth/2.0/provider'
href='http://www.google.com/profiles/<user>'/><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The href value might vary, but that’s what it returned
for my account. What concerns me is the link relation value: http://specs.openid.net/auth/2.0/provider<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Where did that come from? The 2.0 spec defined two
possible values:<o:p></o:p></p>
<p class=MsoNormal>http://specs.openid.net/auth/2.0/server<o:p></o:p></p>
<p class=MsoNormal>http://specs.openid.net/auth/2.0/signon<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>However, I cannot find the one Google is using defined
anywhere, though I did see it referenced here:<o:p></o:p></p>
<p class=MsoNormal><a
href="http://code.google.com/p/webfinger/source/browse/wiki/CommonLinkRelations.wiki?spec=svn22&r=22">http://code.google.com/p/webfinger/source/browse/wiki/CommonLinkRelations.wiki?spec=svn22&r=22</a><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Is this an error? If not, can somebody point me to the
correct documentation?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>If it is an error, what should the value be?<o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal>I had assumed that the most logical choice was http://specs.openid.net/auth/2.0/signon,
which is what I configured my server to return. I made that assumption
based on looking at all of the XRDS examples in the OpenID 2.0 spec.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Paul<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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