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Issue 49: http://facebook-openid.appspot.com/ fails
1 person starred this issue and may be notified of changes. Back to list
Status:  Fixed
Owner:  ----
Closed:  Oct 2011


 
Reported by lan...@gmail.com, Oct 8, 2011
Hi,

I have tried to research the problem, but do not understand the protocol good enough to find the answer.

It fails in the Discovery with "No OpenID Server found at http://facebook-openid.appspot.com/"

I have tried the openid url at another site, and it worked.


Oct 8, 2011
#2 lan...@gmail.com
I have now tried your suggestion, without luck.

The OpenId URL http://facebook-openid.appspot.com/ works with DISQUS.

Could it might be using a standard not supported by lightopenid ?
Oct 8, 2011
#3 themoose...@googlemail.com
According to Wikipedia: "Disqus is an online service that offers a centralized discussion platform for websites. It was founded in May 2007 and operates under the name of Big Head Labs Inc."

lightopenid only supports the free, non-commercial OpenID standard with some extensions which are also free. Disqus isn't a standard and it's commercial, so it will never be supported by lightopenid.
Oct 8, 2011
#4 lan...@gmail.com
1: Go to http://www.livejournal.com/identity/login.bml
2: select OpenId
3: Type in OpenId URL: http://facebook-openid.appspot.com/
4: You will be presented with a Facebook-login

When I do the follwing in my code, it will not work:
$openid->identity = 'http://facebook-openid.appspot.com/';
Oct 9, 2011
Project Member #5 mewp...@gmail.com
Ok, so the reason is that this provider responds to HEAD and GET requests with different headers. That is: HEAD request doesn't return X-XRDS-Location, GET request does.

The reason for this behavior is rather simple: HEAD requests return HTTP/1.1 405 Method Not Allowed. Probably because of the appspot platform.

Since this behavior is compatible with the Yadis protocol (in that the HEAD request may fail), I have changed LightOpenID's behavior to retry a request with GET if HEAD returns 405.
Status: Fixed

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