src/main/java/eu/dnetlib/loginservice/security/initiliazers/Configurations.java

@@ -2,6 +2,7 @@ package eu.dnetlib.loginservice.security.initiliazers;
 
 import eu.dnetlib.loginservice.properties.Properties;
 import eu.dnetlib.loginservice.security.oidc.OpenAIREAuthoritiesMapper;
+import eu.dnetlib.loginservice.security.oidc.OpenAIREUserInfoFetcher;
 import eu.dnetlib.loginservice.utils.PropertyReader;
 import org.mitre.oauth2.model.ClientDetailsEntity;
 import org.mitre.oauth2.model.RegisteredClient;
@@ -20,17 +21,22 @@ public class Configurations {
     private final Properties properties;
     private final PropertyReader scopeReader;
     private final OpenAIREAuthoritiesMapper authoritiesMapper;
+    private final OpenAIREUserInfoFetcher userInfoFetcher;
 
     @Autowired
-    public Configurations(Properties properties, OpenAIREAuthoritiesMapper authoritiesMapper, PropertyReader scopeReader) {
+    public Configurations(Properties properties, OpenAIREAuthoritiesMapper authoritiesMapper, OpenAIREUserInfoFetcher userInfoFetcher, PropertyReader scopeReader) {
         this.properties = properties;
-        this.scopeReader = scopeReader;
         this.authoritiesMapper = authoritiesMapper;
+        this.userInfoFetcher = userInfoFetcher;
+        this.scopeReader = scopeReader;
     }
 
     @Bean
     public OIDCAuthenticationProvider provider() {
         OIDCAuthenticationProvider provider = new OIDCAuthenticationProvider();
+        if(properties.getKeycloak()) {
+            provider.setUserInfoFetcher(this.userInfoFetcher);
+        }
         if(this.properties.getAuthoritiesMapper() != null && this.scopeReader.getScopes().contains(this.properties.getAuthoritiesMapper())) {
             provider.setAuthoritiesMapper(this.authoritiesMapper);
         }

src/main/java/eu/dnetlib/loginservice/security/oidc/OpenAIREUserInfoFetcher.java

@@ -0,0 +1,28 @@
+package eu.dnetlib.loginservice.security.oidc;
+
+import org.mitre.openid.connect.client.UserInfoFetcher;
+import org.mitre.openid.connect.model.PendingOIDCAuthenticationToken;
+import org.mitre.openid.connect.model.UserInfo;
+import org.springframework.stereotype.Component;
+
+import java.nio.charset.StandardCharsets;
+
+@Component
+public class OpenAIREUserInfoFetcher extends UserInfoFetcher {
+
+    public OpenAIREUserInfoFetcher() {}
+
+    @Override
+    public UserInfo loadUserInfo(PendingOIDCAuthenticationToken token) {
+        UserInfo userInfo = super.loadUserInfo(token);
+        userInfo.setGivenName(encoder(userInfo.getGivenName()));
+        userInfo.setFamilyName(encoder(userInfo.getFamilyName()));
+        userInfo.setName(encoder(userInfo.getName()));
+        return userInfo;
+    }
+
+    private String encoder(String value) {
+        String decodedString = new String(value.getBytes(StandardCharsets.UTF_8));
+        return new String(decodedString.getBytes(StandardCharsets.ISO_8859_1), StandardCharsets.UTF_8);
+    }
+}