Update to work with Keycloak based EGI Check In

- this has included:
  - switching to aai-demo.egi.eu for preproduction, on the
    advice of EGI Check In team
  - updating the expected IdPs from subdomain/proxy/saml2/idp/metadata.php
    to subdomain/auth/realms/egi
  - moving from using epuid to voPersonID

- related ticket: https://ggus.eu/index.php?mode=ticket_info&ticket_id=164026

lib/Authentication/AuthTokens/ShibAuthToken.php

@@ -96,9 +96,9 @@ private function getAttributesInitToken(){
             $this->userDetails = array('AuthenticationRealm' => array('UK_ACCESS_FED'));
             return;
         }
-        else if($idp == 'https://aai.egi.eu/proxy/saml2/idp/metadata.php'){
+        else if($idp == 'https://aai.egi.eu/auth/realms/egi'){
             // assurance is the old way EGI checkIn used to pass LoA attributes
-            /*if( empty($_SERVER['epuid'])){// || empty($_SERVER['displayName']) ){
+            /*if( empty($_SERVER['voPersonID'])){// || empty($_SERVER['displayName']) ){
                 die('Did not recieve required attributes from the EGI Proxy Identity Provider to complete authentication, please contact gocdb-admins');
             }
             if(empty($_SERVER['assurance'])){
@@ -112,16 +112,16 @@ private function getAttributesInitToken(){
                  echo ($HTML);
                  die();
             }
-            $this->principal = $_SERVER['epuid'];
+            $this->principal = $_SERVER['voPersonID'];
             $this->userDetails = array('AuthenticationRealm' => array('EGI Proxy IdP'));
             return;
             */
 
-            if( empty($_SERVER['epuid'])){// || empty($_SERVER['displayName']) ){
+            if( empty($_SERVER['voPersonID'])){// || empty($_SERVER['displayName']) ){
                 die('Did not recieve required attributes from the EGI Proxy Identity Provider to complete authentication, please contact gocdb-admins');
             }
             if(empty($_SERVER['entitlement'])){
-                //die('Did not recieve the required entitlement attribute from the EGI Dev Proxy IdP, please contact gocdb-admins');
+                //die('Did not recieve the required entitlement attribute from the EGI Proxy IdP, please contact gocdb-admins');
                 $HTML = '<ul><li>Login requires a GOCDB entitlement value <a href="https://wiki.egi.eu/wiki/URN_Registry:aai.egi.eu:gocdb" target="_blank">https://wiki.egi.eu/wiki/URN_Registry:aai.egi.eu:gocdb</a></li><li>Please, logout or restart your browser and attempt to login again using an identity provider that provides a GOCDB entitlement</li></ul>';
                 $HTML .= "<div style='text-align: center;'>";
                 $HTML .= '<a href="'.htmlspecialchars(\Factory::$properties['LOGOUTURL']).'"><b><font colour="red">Logout</font></b></a>';
@@ -139,28 +139,28 @@ private function getAttributesInitToken(){
                  echo ($HTML);
                  die();
             }
-            $this->principal = $_SERVER['epuid'];
+            $this->principal = $_SERVER['voPersonID'];
             $this->userDetails = array('AuthenticationRealm' => array('EGI Proxy IdP'));
             return;
 
         }
-        else if($idp == 'https://aai-dev.egi.eu/proxy/saml2/idp/metadata.php'){
-            if( empty($_SERVER['epuid'])){
-                die('Did not receive required ePUID attributes from the EGI Dev Proxy Identity Provider to complete authentication, please contact gocdb-admins');
+        else if($idp == 'https://aai-demo.egi.eu/auth/realms/egi'){
+            if( empty($_SERVER['voPersonID'])){
+                die('Did not receive required voPersonID attributes from the EGI Demo Proxy Identity Provider to complete authentication, please contact gocdb-admins');
             }
             if(empty($_SERVER['entitlement'])){
-                die('Did not receive the required entitlement attribute from the EGI Dev Proxy IdP, please contact gocdb-admins');
-            } 
-            $entitlementValuesArray = explode(';', $_SERVER['entitlement']); 
+                die('Did not receive the required entitlement attribute from the EGI Demo Proxy IdP, please contact gocdb-admins');
+            }
+            $entitlementValuesArray = explode(';', $_SERVER['entitlement']);
             if( !in_array('urn:mace:egi.eu:res:gocdb#aai.egi.eu', $entitlementValuesArray) ){
-                 $HTML = '<ul><li>You authenticated to the EGI Dev Identity Provider using a method that does not provide a GOCDB entitlement.</li><li>Login is required with a gocdb entitlement.</li><li>To gain access, you will need to login to the Proxy IdP using a scheme that provides a gocdb entitlement.</li><li>Please logout or restart your browser and attempt to login again.</li></ul>';
+                 $HTML = '<ul><li>You authenticated to the EGI Demo Identity Provider using a method that does not provide a GOCDB entitlement.</li><li>Login is required with a gocdb entitlement.</li><li>To gain access, you will need to login to the Proxy IdP using a scheme that provides a gocdb entitlement.</li><li>Please logout or restart your browser and attempt to login again.</li></ul>';
                  $HTML .= "<div style='text-align: center;'>";
                  $HTML .= '<a href="'.htmlspecialchars(\Factory::$properties['LOGOUTURL']).'"><b><font colour="red">Logout</font></b></a>';
                  $HTML .= "</div>";
                  echo ($HTML);
                  die();
             }
-            $this->principal = $_SERVER['epuid'];
+            $this->principal = $_SERVER['voPersonID'];
             $this->userDetails = array('AuthenticationRealm' => array('EGI Proxy IdP'));
             return;
         }