/**
* Copyright (C) 2011 JTalks.org Team
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.jtalks.jcommune.plugin.api.service;
import org.jtalks.jcommune.model.entity.AnonymousUser;
import org.jtalks.jcommune.model.entity.JCUser;
/**
* This class allows to get information about current user in plugins.
*
* @author Mikhail Stryzhonok
*/
public class ReadOnlySecurityService implements UserReader {
private static final ReadOnlySecurityService INSTANCE = new ReadOnlySecurityService();
private UserReader userReader;
public static UserReader getInstance() {
return INSTANCE;
}
/** Use {@link #getInstance()}, this class is singleton. */
private ReadOnlySecurityService() {
}
/**
* Is set once during spring beans initialization. Because in {@link #getInstance()} the interface is returned,
* users of this API won't see this setter and won't be able to change this field.
*
* @param userReader a service that we wrap that actually has access to security and users
*/
public void setUserReader(UserReader userReader) {
this.userReader = userReader;
}
/**
* Gets copy of user currently logged in. This is done so that Plugins won't be able to modify objects and
* break core forum.
*
* @return the copy of user currently logged in or {@link AnonymousUser} if user is anonymous
* @see AnonymousUser
*/
@Override
public JCUser getCurrentUser() {
JCUser currentUser = userReader.getCurrentUser();
if (currentUser.isAnonymous()) {
return new AnonymousUser();
} else {
return JCUser.copyUser(currentUser);
}
}
}