Preferred language user attribute

Author: oharsta

oidc/src/main/java/oidc/endpoints/UserInfoEndpoint.java

@@ -27,8 +27,8 @@
 @RestController
 public class UserInfoEndpoint {
 
-    private AccessTokenRepository accessTokenRepository;
-    private TokenGenerator tokenGenerator;
+    private final AccessTokenRepository accessTokenRepository;
+    private final TokenGenerator tokenGenerator;
 
     public UserInfoEndpoint(AccessTokenRepository accessTokenRepository, TokenGenerator tokenGenerator) {
         this.accessTokenRepository = accessTokenRepository;

oidc/src/main/resources/oidc/saml_mapping.json

@@ -110,6 +110,11 @@
     "oidc": "date_of_birth",
     "multiValue": false
   },
+  {
+    "saml": "urn:mace:dir:attribute-def:preferredLanguage",
+    "oidc": "preferred_language",
+    "multiValue": false
+  },
   {
     "saml": "urn:mace:surf.nl:attribute-def:surf-autorisaties",
     "oidc": "surf-autorisaties",