/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.keycloak.examples.federation.properties;
import org.keycloak.models.UserModel;
import org.keycloak.models.utils.UserModelDelegate;
import java.util.Properties;
/**
* Proxy that will synchronize password updates to the properties file.
*
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class WritableUserModelProxy extends UserModelDelegate {
protected FilePropertiesFederationProvider provider;
public WritableUserModelProxy(UserModel delegate, FilePropertiesFederationProvider provider) {
super(delegate);
this.provider = provider;
}
/**
* Updates the properties file if the username changes. If you have a more complex user storage, you can
* override other methods on UserModel to synchronize updates back to your external storage.
*
* @param username
*/
@Override
public void setUsername(String username) {
if (delegate.getUsername().equals(username)) return;
delegate.setUsername(username);
Properties properties = provider.getProperties();
synchronized (properties) {
if (properties.containsKey(username)) {
throw new IllegalStateException("Can't change username to existing user");
}
String password = (String) properties.remove(username);
if (password == null) {
throw new IllegalStateException("User doesn't exist");
}
properties.setProperty(username, password);
provider.save();
}
}
}