docs: Update documentation for bridging.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1812 44740490-163a-0410-bde0-09ae8108e29a

docs/simplesamlphp-advancedfeatures.txt

@@ -26,32 +26,24 @@ step :)
 Bridging between protocols
 --------------------------
 
-A bridge between two protocols is built using both an IdP and an
-SP, connected together. To let a SAML 2.0 SP talk to a Shibboleth
-IdP, you build a simpleSAMLphp bridge from a SAML 2.0 IdP and a
-Shibboleth SP.The SAML 2.0 SP talks to the SAML 2.0 IdP, which
-hands the request over to the Shibboleth 1.3 SP, which forwards it
-to the Shibboleth IdP. This is configured in the IdP hosted
-metadata, and is controlled by the `auth` and `authority`
-parameters.
-
-**Example 1. Example of bridge configuration**
-
-A bridge configured with a SAML 2.0 IdP and a Shibboleth 1.3 SP: In
-the `saml20-idp-hosted.php` metadata you configure the
-authentication to use Shibboleth 1.3 SP like this:
-
-    'auth' => 'shib13/sp/initSSO.php',
-    'authority' => 'shib13'
-
-As no specific Shibboleth IdP is specified as parameter to the
-`initSSO.php` script, the discovery service page will be shown. If
-you want to connect the SAML 2.0 IdP to a specific Shibboleth 1.3
-IdP, give the entity id as a parameter to the `initSSO.php`
-script:
-
-    'auth' => 'shib13/sp/initSSO.php?idpentityid=shib13idp.example.org',
-    'authority' => 'shib13'
+A bridge between two protocols is built using both an IdP and an SP, connected together.
+To let a SAML 2.0 SP talk to a SAML 1.1 IdP, you build a simpleSAMLphp bridge from a SAML 2.0 IdP and a SAML 1.1 SP.
+The SAML 2.0 SP talks to the SAML 2.0 IdP, which hands the request over to the SAML 1.1 SP, which forwards it to the SAML 1.1 IdP.
+
+If you have followed the instructions for setting up an SP, and have configured an authentication source, all you need to do is to add that authentication source to the IdP.
+
+**Example of bridge configuration**
+
+In `metadata/saml20-idp-hosted.php`:
+
+    'auth' => 'default-sp',
+
+In `config/authsources.php`:
+
+    'default-sp' => array(
+        'saml:SP',
+    ),
+
 
 
 Attribute control