OpenID and Relying Party Discovery

Note via: http://blog.nerdbank.net/2008/06/why-yahoo-says-your-openid-site.html

You must advertise your XRDS document from your Realm URL.

Add the following line inside the HEAD tags of your Realm page:

<meta http-equiv="X-XRDS-Location" content="http://yourdomain.com/hybridauth_path/or_somthing_like_that/?openid_xrds"/>

Note via: http://developer.yahoo.com/openid/faq.html

Yahoo! displays the above warning for Relying Parties which fail to implement Section 13: Discovering OpenID Relying Parties of the OpenID 2.0 Protocol. Implementing Relying Party Discovery enables Yahoo to verify your site's OpenID Realm when servicing Authentication Requests from your site.

hybridauth/index.php is used to Serve the OpenID XRDS document:

This xrds doc can be found at ./hybridauth/Hybrid/resources/openid_xrds.xml

Depending on your settings, {RETURN_TO_URL} can be something like http://yoursite.com/path_to_hybridauth/?hauth.done=OpenID 

<xrds:XRDS
    xmlns:xrds="xri://$xrds"
    xmlns:openid="http://openid.net/xmlns/1.0"
    xmlns="xri://$xrd*($v*2.0)">
    <XRD>
        <Service priority="1">
            <Type>http://specs.openid.net/auth/2.0/return_to</Type>
            <URI>{RETURN_TO_URL}</URI>
        </Service>
    </XRD>
</xrds:XRDS>

hybridauth/index.php also used to Advertise XRDS document:

The html content can be found at ./hybridauth/Hybrid/resources/openid_realm.html

Depending on your settings, the url can be something like http://yoursite.com/path_to_hybridauth/?get=openid_xrds 

<html>
	<head>
		<meta http-equiv="X-XRDS-Location" content="{X_XRDS_LOCATION}" />
	</head>
	<body>
	</body>
</html>

# /hybridauth/index.php also used to serve your policy terms:

The html content can be found at ./hybridauth/Hybrid/resources/openid_policy.html

Depending on your settings, the url can be something like http://yoursite.com/path_to_hybridauth/?get=openid_policy 

<html>
	<head>
		<title>OpenID Policy</title>
	</head>
	<body>
		<!--
			Set here your OpenID Policy,
		-->
	</body>
</html>