001    /**
002     *   GRANITE DATA SERVICES
003     *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004     *
005     *   This file is part of the Granite Data Services Platform.
006     *
007     *   Granite Data Services is free software; you can redistribute it and/or
008     *   modify it under the terms of the GNU Lesser General Public
009     *   License as published by the Free Software Foundation; either
010     *   version 2.1 of the License, or (at your option) any later version.
011     *
012     *   Granite Data Services is distributed in the hope that it will be useful,
013     *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014     *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015     *   General Public License for more details.
016     *
017     *   You should have received a copy of the GNU Lesser General Public
018     *   License along with this library; if not, write to the Free Software
019     *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020     *   USA, or see <http://www.gnu.org/licenses/>.
021     */
022    package org.granite.gravity.adapters;
023    
024    import org.granite.gravity.Channel;
025    
026    import flex.messaging.messages.Message;
027    
028    /**
029     * A SecurityPolicy which allows everything, provided that the Channel isn't null. This
030     * security policy is used by default unless a custom one is configured in the services-config.xml
031     * of the current application.
032     * <br><br>
033     * Example (services-config.xml):
034     * <pre>
035     * ...
036     * &lt;adapters&gt;
037     *   &lt;adapter-definition
038     *     id="default" class="org.granite.gravity.adapters.SimpleServiceAdapter"
039     *     default="true"&gt;
040     *     &lt;properties&gt;
041     *       &lt;security-policy&gt;path.to.MySecurityPolicy&lt;/security-policy&gt;
042     *     &lt;/properties&gt;
043     *   &lt;/adapter-definition&gt;
044     * &lt;/adapters&gt;
045     * ...
046     * </pre>
047     * 
048     * @author Franck WOLFF
049     */
050    public class DefaultSecurityPolicy implements SecurityPolicy {
051    
052            public boolean canCreate(Channel client, String channel, Message message) {
053            return client != null;
054            }
055    
056            public boolean canSubscribe(Channel client, String channel, Message messsage) {
057            return client != null;
058            }
059    
060            public boolean canPublish(Channel client, String channel, Message messsage) {
061            return client != null;
062            }
063    }