001    /****************************************************************
002     * Licensed to the Apache Software Foundation (ASF) under one   *
003     * or more contributor license agreements.  See the NOTICE file *
004     * distributed with this work for additional information        *
005     * regarding copyright ownership.  The ASF licenses this file   *
006     * to you under the Apache License, Version 2.0 (the            *
007     * "License"); you may not use this file except in compliance   *
008     * with the License.  You may obtain a copy of the License at   *
009     *                                                              *
010     *   http://www.apache.org/licenses/LICENSE-2.0                 *
011     *                                                              *
012     * Unless required by applicable law or agreed to in writing,   *
013     * software distributed under the License is distributed on an  *
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
015     * KIND, either express or implied.  See the License for the    *
016     * specific language governing permissions and limitations      *
017     * under the License.                                           *
018     ****************************************************************/
019    
020    
021    package org.apache.james.jspf.terms;
022    
023    import org.apache.james.jspf.core.DNSLookupContinuation;
024    import org.apache.james.jspf.core.SPFSession;
025    import org.apache.james.jspf.core.exceptions.PermErrorException;
026    
027    /**
028     * This class represent the all mechanism
029     * 
030     */
031    public class AllMechanism implements Mechanism, ConfigurationEnabled {
032    
033        public static final String REGEX = "[aA][lL][lL]";
034    
035        /**
036         * @see org.apache.james.jspf.core.SPFChecker#checkSPF(org.apache.james.jspf.core.SPFSession)
037         */
038        public DNSLookupContinuation checkSPF(SPFSession spfData) throws PermErrorException {
039            return null;
040        }
041    
042        /**
043         * @see org.apache.james.jspf.terms.ConfigurationEnabled#config(Configuration)
044         */
045        public void config(Configuration params) throws PermErrorException {
046            // no checks needed
047            // the regex only passes with no parameters
048        }
049        
050        /**
051         * @see java.lang.Object#toString()
052         */
053        public String toString() {
054            return "all";
055        }
056        
057    }