Fixed corner case for a old authz token which is not an user

src/main/java/org/gcube/common/authorization/utils/secret/GCubeSecret.java

@@ -1,16 +1,19 @@
 package org.gcube.common.authorization.utils.secret;
 
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Map;
 import java.util.regex.Pattern;
 
 import org.gcube.common.authorization.client.Constants;
 import org.gcube.common.authorization.library.AuthorizationEntry;
+import org.gcube.common.authorization.library.ClientType;
 import org.gcube.common.authorization.library.exception.AuthorizationException;
 import org.gcube.common.authorization.library.provider.ClientInfo;
 import org.gcube.common.authorization.library.provider.SecurityTokenProvider;
 import org.gcube.common.authorization.library.utils.Caller;
 import org.gcube.common.authorization.utils.socialservice.SocialService;
+import org.gcube.common.authorization.utils.user.GCubeUser;
 import org.gcube.common.authorization.utils.user.User;
 
 /**
@@ -89,7 +92,23 @@ public class GCubeSecret extends Secret {
 	public User getUser() {
 		if(user==null) {
 			try {
-				user = SocialService.getSocialService().getUser(this);
+				ClientInfo clientInfo = getClientInfo();
+				ClientType clientType = clientInfo.getType();
+				
+				switch (clientType) {
+					case USER:
+						user = SocialService.getSocialService().getUser(this);
+						break;
+	
+					default:
+						// The client is not an user. Trying to do the best 
+						GCubeUser gCubeUser = new GCubeUser();
+						gCubeUser.setRoles(new HashSet<>(clientInfo.getRoles()));
+						gCubeUser.setUsername(clientInfo.getId());
+						user = gCubeUser;
+						break;
+				}
+
 			} catch (Exception e) {
 				throw new RuntimeException();
 			}

src/main/java/org/gcube/common/authorization/utils/user/GCubeUser.java

@@ -23,6 +23,14 @@ public class GCubeUser implements User {
 	
 	public GCubeUser() {
 		this.additionalProperties = new HashMap<>();
+		
+		// This info are not always present. Setting an empty string to avoid null
+		this.givenName = "";
+		this.familyName = "";
+		this.eMail = "";
+		this.jobTitle = "";
+		this.picture = "";
+		this.middleName = "";
 	}
 	
 	@JsonProperty("id")
@@ -49,11 +57,18 @@ public class GCubeUser implements User {
 		return username;
 	}
 	
+	public void setUsername(String username) {
+		this.username = username;
+	}
+
 	@Override
 	public Collection<String> getRoles() {
 		return roles;
 	}
 	
+	public void setRoles(Set<String> roles) {
+		this.roles = roles;
+	}
 	@Override
 	public String getGivenName() {
 		return givenName;