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The Java API for extending the main Guacamole web application. This is not needed for authoring a new Guacamole-based web application.
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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.guacamole.net.auth;

import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Map;
import org.apache.guacamole.GuacamoleException;
import org.apache.guacamole.net.auth.permission.ObjectPermissionSet;
import org.apache.guacamole.net.auth.permission.SystemPermissionSet;

/**
 * Base implementation of User which provides default implementations of
 * most functions.
 */
public abstract class AbstractUser extends AbstractIdentifiable
        implements User {

    /**
     * This user's password. Note that while this provides a means for the
     * password to be set, the data stored in this String is not necessarily
     * the user's actual password. It may be hashed, it may be arbitrary.
     */
    private String password;

    @Override
    public String getPassword() {
        return password;
    }

    @Override
    public void setPassword(String password) {
        this.password = password;
    }

    /**
     * {@inheritDoc}
     *
     * This implementation simply an immutable, empty map. Implementations
     * that wish to expose custom attributes should override this function.
     */
    @Override
    public Map getAttributes() {
        return Collections.emptyMap();
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply ignores all attributes given.
     * Implementations that wish to support modification of custom attributes
     * should override this function.
     */
    @Override
    public void setAttributes(Map attributes) {
        // Ignore all attributes by default
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply returns {@code null}. Implementations that
     * wish to expose the date and time that a user was last active should
     * override this function.
     */
    @Override
    public Date getLastActive() {
        return null;
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply an immutable, empty list. Implementations
     * that wish to expose user login history should override this function.
     */
    @Override
    public List getHistory() throws GuacamoleException {
        return Collections.emptyList();
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply an immutable, empty permission set.
     * Implementations that wish to expose permissions should override this
     * function.
     */
    @Override
    public SystemPermissionSet getSystemPermissions()
            throws GuacamoleException {
        return SystemPermissionSet.EMPTY_SET;
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply an immutable, empty permission set.
     * Implementations that wish to expose permissions should override this
     * function.
     */
    @Override
    public ObjectPermissionSet getConnectionPermissions()
            throws GuacamoleException {
        return ObjectPermissionSet.EMPTY_SET;
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply an immutable, empty permission set.
     * Implementations that wish to expose permissions should override this
     * function.
     */
    @Override
    public ObjectPermissionSet getConnectionGroupPermissions()
            throws GuacamoleException {
        return ObjectPermissionSet.EMPTY_SET;
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply an immutable, empty permission set.
     * Implementations that wish to expose permissions should override this
     * function.
     */
    @Override
    public ObjectPermissionSet getUserPermissions()
            throws GuacamoleException {
        return ObjectPermissionSet.EMPTY_SET;
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply an immutable, empty permission set.
     * Implementations that wish to expose permissions should override this
     * function.
     */
    @Override
    public ObjectPermissionSet getUserGroupPermissions()
            throws GuacamoleException {
        return ObjectPermissionSet.EMPTY_SET;
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply an immutable, empty permission set.
     * Implementations that wish to expose permissions should override this
     * function.
     */
    @Override
    public ObjectPermissionSet getActiveConnectionPermissions()
            throws GuacamoleException {
        return ObjectPermissionSet.EMPTY_SET;
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply an immutable, empty permission set.
     * Implementations that wish to expose permissions should override this
     * function.
     */
    @Override
    public ObjectPermissionSet getSharingProfilePermissions() {
        return ObjectPermissionSet.EMPTY_SET;
    }

    /**
     * {@inheritDoc}
     *
     * 
This implementation simply an immutable, empty related object set.
     * Implementations that wish to expose group membership should override
     * this function.
     */
    @Override
    public RelatedObjectSet getUserGroups() throws GuacamoleException {
        return RelatedObjectSet.EMPTY_SET;
    }

    /**
     * {@inheritDoc}
     *
     * This implementation simply returns {@code this}. Implementations that
     * wish to expose permissions which apply indirectly (such as through
     * group inheritance) should override this function.
     */
    @Override
    public Permissions getEffectivePermissions() throws GuacamoleException {
        return this;
    }

}