001    /****************************************************************
002     * Licensed to the Apache Software Foundation (ASF) under one   *
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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     *                                                              *
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014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
015     * KIND, either express or implied.  See the License for the    *
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019    
020    package org.apache.james.jspf.policies.local;
021    
022    import org.apache.james.jspf.core.SPF1Record;
023    import org.apache.james.jspf.core.SPF1Utils;
024    import org.apache.james.jspf.core.exceptions.NeutralException;
025    import org.apache.james.jspf.core.exceptions.NoneException;
026    import org.apache.james.jspf.core.exceptions.PermErrorException;
027    import org.apache.james.jspf.core.exceptions.TempErrorException;
028    import org.apache.james.jspf.policies.PolicyPostFilter;
029    
030    /**
031     * PolicyPostFilter which handles best guess. 
032     * See http://www.openspf.org/FAQ/Best_guess_record for more informations 
033     * 
034     *
035     */
036    public class BestGuessPolicy implements PolicyPostFilter {
037    
038        /**
039         * @see org.apache.james.jspf.policies.PolicyPostFilter#getSPFRecord(java.lang.String, org.apache.james.jspf.core.SPF1Record)
040         */
041        public SPF1Record getSPFRecord(String currentDomain, SPF1Record record)
042                throws PermErrorException, TempErrorException, NoneException,
043                NeutralException {
044            if (record == null) {
045                // We should use bestguess
046                return new SPF1Record(SPF1Utils.BEST_GUESS_RECORD);
047            } else {
048                return record;
049            }
050        }
051    }