Parse the "Hide From Discovery" REFEDS Entity Category in SAML metadata as the...

Parse the "Hide From Discovery" REFEDS Entity Category in SAML metadata as the new 'hide.from.discovery' configuration option for remote IdP metadata.

lib/SimpleSAML/Metadata/SAMLParser.php

@@ -488,6 +488,15 @@ class SimpleSAML_Metadata_SAMLParser
 
         if (!empty($this->entityAttributes)) {
             $metadata['EntityAttributes'] = $this->entityAttributes;
+
+            // check for entity categories
+            $entity_category = 'http://macedir.org/entity-category';
+            $hide_from_discovery = 'http://refeds.org/category/hide-from-discovery';
+            if (array_key_exists($entity_category, $metadata['EntityAttributes'])) {
+                if (in_array($hide_from_discovery, $metadata['EntityAttributes'][$entity_category])) {
+                    $metadata['hide.from.discovery'] = true;
+                }
+            }
         }
 
         if (!empty($roleDescriptor['UIInfo'])) {