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 package org.apache.james.jspf.policies; 021 022 import org.apache.james.jspf.core.DNSLookupContinuation; 023 import org.apache.james.jspf.core.SPF1Constants; 024 import org.apache.james.jspf.core.SPFSession; 025 import org.apache.james.jspf.core.SPF1Record; 026 import org.apache.james.jspf.core.exceptions.NeutralException; 027 import org.apache.james.jspf.core.exceptions.NoneException; 028 import org.apache.james.jspf.core.exceptions.PermErrorException; 029 import org.apache.james.jspf.core.exceptions.TempErrorException; 030 import org.apache.james.jspf.terms.Modifier; 031 032 /** 033 * Sets the result to NEUTRAL if no directive is found 034 */ 035 public class NeutralIfNotMatchPolicy implements PolicyPostFilter { 036 037 private final class NeutralIfNotMatchModifier implements Modifier { 038 039 /** 040 * @see org.apache.james.jspf.core.SPFChecker#checkSPF(org.apache.james.jspf.core.SPFSession) 041 */ 042 public DNSLookupContinuation checkSPF(SPFSession spfData) throws PermErrorException, TempErrorException, NeutralException { 043 // If no match was found set the result to neutral 044 if (spfData.getCurrentResult() == null) { 045 spfData.setCurrentResult(SPF1Constants.NEUTRAL); 046 } 047 return null; 048 } 049 050 public String toString() { 051 return "defaultresult"; 052 } 053 054 /** 055 * (non-Javadoc) 056 * @see org.apache.james.jspf.terms.Modifier#enforceSingleInstance() 057 */ 058 public boolean enforceSingleInstance() { 059 return false; 060 } 061 } 062 063 /** 064 * @see org.apache.james.jspf.policies.PolicyPostFilter#getSPFRecord(java.lang.String, org.apache.james.jspf.core.SPF1Record) 065 */ 066 public SPF1Record getSPFRecord(String currentDomain, SPF1Record spfRecord) throws PermErrorException, TempErrorException, NoneException, NeutralException { 067 if (spfRecord == null) return null; 068 // Set the result to NEUTRAL if at least a directive is present and it didn't match 069 // Maybe we should simply append a "?all" at the end, as modifier 070 if (spfRecord.getDirectives().size() > 0) { 071 spfRecord.getModifiers().add(new NeutralIfNotMatchModifier()); 072 } 073 return spfRecord; 074 } 075 }