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To have more control over the IP Discovery and the look and feel of the WAYF selection page, you can integrate a WAYF page in your service. You can arrange this as follows:

  1. Be sure that your service is configured in SURFconext (Production or Test environment).
  2. Request a SAML 2.0 metadata file with all Identity Providers that have been coupled with your service (https://engine.surfconext.nl/authentication/proxy/idps-metadata?sp-entity-id=SP-ENTITY-ID (replace SP-ENTITY-ID with your EntityID as found in your metadata)).
  3. You will receive an actual list of 1) your own Service Provider metadata (included for services that use Shibboleth software) and (2) metadata of all the Identity Providers that have allowed access to your service.

An example of the response to the IdPs metadata for the "https://test.test.nl" entity is show below.

<?xml version="1.0"?>
<md:EntitiesDescriptor xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata" xmlns:mdui="urn:oasis:names:tc:SAML:2.0:metadata:ui" ID="CORTO6d017189c6bcd01c19935006ce6b32e89e29b4a3"><ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/><ds:Reference URI="#CORTO6d017189c6bcd01c19935006ce6b32e89e29b4a3"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/><ds:DigestValue>L8ANkHPH4msXsIUFptAMeNTuMzQ=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>kSE6aUY74Y1P/B6ZDY4s6F3AEpCv0t/z9fyyhUmPZctfshkiyK53vz8lKfmgiUlOk2c4+dXVPlVQqzeVgW2lDKycdWhkjSQnybBNPrBYlvlEPMJHO4p83IEOMGXh7yS6a8OjNc9qLTikVQnxwfV3xAZGxZ0AZVSJM9WhkqRMJGAK7xMcttM77cIy06ZRpNDb5e36Fb6dLHHAJ3JICd9CEHqdP3WKB2rO2wDGxrkIx/6ynnM1YCFbWvpGU+dGT6/r7YTU9q89UdU2cYMTP1t4KSl/BOMJflnwlAEmFxcxn4FGKny9cRpzhu0nvmtk02cK8T/pYboWWEqG6ooTIEM3Yw==</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509Certificate></ds:X509Certificate></ds:X509Data></ds:KeyInfo></ds:Signature>
<md:EntityDescriptor validUntil="2012-05-31T22:00:00Z" entityID="https://test.test.nl"><md:SPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol"><md:NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:transient</md:NameIDFormat><md:AssertionConsumerService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://engine.surfconext.nl/authentication/sp/consume-assertion/7f301d787aa6ea235a8b86434d39aa41" index="1"/></md:SPSSODescriptor></md:EntityDescriptor>
<md:EntityDescriptor validUntil="2012-06-01T10:36:28Z" entityID="http://www.surf.nl/test"><md:IDPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol"><md:Extensions><mdui:DisplayName xml:lang="en">SURFnet BV - This IdP is for testing only</mdui:DisplayName><mdui:DisplayName xml:lang="nl">SURFnet BV - This IdP is for testing only</mdui:DisplayName><mdui:Description xml:lang="en">SURFnet BV - This IdP is for testing only</mdui:Description><mdui:Description xml:lang="nl">SURFnet BV - This IdP is for testing only</mdui:Description><mdui:Logo height="60" width="120">https://wayf.surf.nl/federate/surfnet/img/logo/surfnet.png</mdui:Logo><mdui:Keywords xml:lang="en">SURFNET</mdui:Keywords><mdui:Keywords xml:lang="nl">SURFNET</mdui:Keywords></md:Extensions><md:KeyDescriptor xmlns:ds="http://www.w3.org/2000/09/xmldsig#" use="signing"><ds:KeyInfo><ds:X509Data><ds:X509Certificate></ds:X509Certificate></ds:X509Data></ds:KeyInfo></md:KeyDescriptor><md:KeyDescriptor xmlns:ds="http://www.w3.org/2000/09/xmldsig#" use="encryption"><ds:KeyInfo><ds:X509Data><ds:X509Certificate></ds:X509Certificate></ds:X509Data></ds:KeyInfo></md:KeyDescriptor><md:NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:transient</md:NameIDFormat><md:SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" Location="https://engine.surfconext.nl/authentication/idp/single-sign-on/dedd75c2157a751113666d7888b2f2cd"/></md:IDPSSODescriptor></md:EntityDescriptor>

Line 3 in this example contains the Service Provider metadata of 'https://test.test.nl'. Line 4 shows the metadata for a coupled Identity Provider, in this case the SURFnet Test IdP. For simplicity the remainder of the XML metadata is omitted.

This metadata can either be configured into your Service Provider directly or it can be used, e.g. using Xpath, to extract the Display names and SSO locations of the Identity Providers to present in a custom WAYF.

The SSO locations in this metadata file are provided in a transparent way. This means that for any Identity Provider, they all point to a SURFconext endpoint but with a specific identifier at the end. This identifier instructs SURFconext to immediately forward the authentication request to the requested Identity Provider. This way, SURFconext is still in the middle of the traffic (as a proxy), even though you use your own WAYF selection page.

Shibboleth example

When you use Shibboleth as the Service Provider software, it is very easy to implement an authentication request to a specific Identity Provider. The following HTML code presents a link that will start an authentication to a specific Identity Provider:

<ul class="IdPlist">
<li><a
href="https://SP.example.org/Shibboleth.sso/Login?target=dashboard.php&entityID=http://www.surf.nl/test
">SURFconext Login</a></li>
</ul>

Here, the base URL is the URL of your Shibboleth Service Provider. The 'target' parameter contains the location to return to after the login was successful and the 'entityID' parameter is the EntityID of the Identity Provider as found in the SURFconext metadata.

 If you expand this list with more Identity Providers from the SURFconext metadata, you have implemented your own WAYF selection page using Shibboleth.

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