/**
 * Copyright (C) 2001 Yasna.com. All rights reserved.
 *
 * ===================================================================
 * The Apache Software License, Version 1.1
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by
 *        Yasna.com (http://www.yasna.com)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Yazd" and "Yasna.com" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please
 *    contact yazd@yasna.com.
 *
 * 5. Products derived from this software may not be called "Yazd",
 *    nor may "Yazd" appear in their name, without prior written
 *    permission of Yasna.com.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL YASNA.COM OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Yasna.com. For more information
 * on Yasna.com, please see <http://www.yasna.com>.
 */

/**
 * Copyright (C) 2000 CoolServlets.com. All rights reserved.
 *
 * ===================================================================
 * The Apache Software License, Version 1.1
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by
 *        CoolServlets.com (http://www.coolservlets.com)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Jive" and "CoolServlets.com" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please
 *    contact webmaster@coolservlets.com.
 *
 * 5. Products derived from this software may not be called "Jive",
 *    nor may "Jive" appear in their name, without prior written
 *    permission of CoolServlets.com.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL COOLSERVLETS.COM OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of CoolServlets.com. For more information
 * on CoolServlets.com, please see <http://www.coolservlets.com>.
 */

package com.Yasna.forum;

import java.util.*;

/**
 * Protection proxy for User objects.
 *
 * @see User
 */
public class UserProxy implements User {

    private User user;
    private Authorization authorization;
    private ForumPermissions permissions;

    /**
     * Create a new UserProxy.
     */
    public UserProxy(User user, Authorization authorization,
            ForumPermissions permissions)
    {
        this.user = user;
        this.authorization = authorization;
        this.permissions = permissions;
    }

    public int getID() {
        return user.getID();
    }

    public boolean isAnonymous() {
        return user.isAnonymous();
    }

    public String getUsername() {
        return user.getUsername();
    }

    public String getName(){
        if (isNameVisible() || permissions.get(ForumPermissions.SYSTEM_ADMIN) ||
                permissions.get(ForumPermissions.USER_ADMIN))
        {
            return user.getName();
        }
        else {
            return null;
        }
    }

    public void setName(String name) throws UnauthorizedException {
        if (permissions.get(ForumPermissions.SYSTEM_ADMIN) ||
               permissions.get(ForumPermissions.USER_ADMIN))
        {
            user.setName(name);
        }
        else {
            throw new UnauthorizedException();
        }
    }

    public boolean isNameVisible() {
        return user.isNameVisible();
    }

    public void setNameVisible(boolean visible) throws UnauthorizedException {
        if (permissions.get(ForumPermissions.SYSTEM_ADMIN) ||
               permissions.get(ForumPermissions.USER_ADMIN))
        {
            user.setNameVisible(visible);
        }
        else {
            throw new UnauthorizedException();
        }
    }

    public void setPassword(String password) throws UnauthorizedException {
        if (permissions.get(ForumPermissions.SYSTEM_ADMIN) ||
               permissions.get(ForumPermissions.USER_ADMIN))
        {
            user.setPassword(password);
        }
        else {
            throw new UnauthorizedException();
        }
    }

    public String getPasswordHash() throws UnauthorizedException {
        if (permissions.get(ForumPermissions.SYSTEM_ADMIN))
        {
            return user.getPasswordHash();
        }
        else {
            throw new UnauthorizedException();
        }
    }

    public void setPasswordHash(String passwordHash)
            throws UnauthorizedException
    {
        if (permissions.get(ForumPermissions.SYSTEM_ADMIN))
        {
            user.setPasswordHash(passwordHash);
        }
        else {
            throw new UnauthorizedException();
        }
    }

    public String getEmail() {
        if (isEmailVisible() ||  permissions.get(ForumPermissions.SYSTEM_ADMIN) ||
                permissions.get(ForumPermissions.USER_ADMIN))
        {
            return user.getEmail();
        }
        else {
            return null;
        }
    }

    public void setEmail(String email) throws UnauthorizedException {
        if (permissions.get(ForumPermissions.SYSTEM_ADMIN) ||
               permissions.get(ForumPermissions.USER_ADMIN))
        {
            user.setEmail(email);
        }
        else {
            throw new UnauthorizedException();
        }
    }

    public boolean isEmailVisible() {
        return user.isEmailVisible();
    }

    public void setEmailVisible(boolean visible) throws UnauthorizedException {
        if (permissions.get(ForumPermissions.SYSTEM_ADMIN) ||
               permissions.get(ForumPermissions.USER_ADMIN))
        {
            user.setEmailVisible(visible);
        }
        else {
            throw new UnauthorizedException();
        }
    }

    public String getProperty(String name) {
        return user.getProperty(name);
    }

    public Enumeration propertyNames() {
        return user.propertyNames();
    }

    public void setProperty(String name, String value) {
        user.setProperty(name, value);
    }

    public ForumPermissions getPermissions(Authorization authorization) {
        return user.getPermissions(authorization);
    }

    public boolean hasPermission(int type) {
        return permissions.get(type);
    }

    /**
     * Converts the object to a String by returning the usernamename.
     * This functionality is primarily for Java applications that might be
     * accessing CoolForum objects through a GUI.
     */
    public String toString() {
        return user.toString();
    }
}