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.local; 021 022 import org.apache.james.jspf.core.Logger; 023 import org.apache.james.jspf.core.SPF1Record; 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 import org.apache.james.jspf.terms.Directive; 030 import org.apache.james.jspf.terms.IncludeMechanism; 031 032 /** 033 * PolicyPostFilter which implements trusted forwared. 034 * See http://www.trusted-forwarder.org for more informations 035 * 036 */ 037 public class TrustedForwarderPolicy implements PolicyPostFilter { 038 039 /** 040 * The hostname to include 041 */ 042 public static final String TRUSTED_FORWARDER_HOST = "spf.trusted-forwarder.org"; 043 044 045 private Logger log; 046 047 /** 048 * @param log the logger 049 */ 050 public TrustedForwarderPolicy(Logger log) { 051 this.log = log; 052 } 053 054 /** 055 * @see org.apache.james.jspf.policies.PolicyPostFilter#getSPFRecord(java.lang.String, org.apache.james.jspf.core.SPF1Record) 056 */ 057 public SPF1Record getSPFRecord(String currentDomain, SPF1Record spfRecord) throws PermErrorException, TempErrorException, NoneException, NeutralException { 058 if (spfRecord == null) return null; 059 String mechanism = ((Directive) spfRecord.getDirectives().get(spfRecord.getDirectives().size())).toString(); 060 if (mechanism.equals("-all") || mechanism.equals("?all")) { 061 log.debug("Add TrustedForwarderPolicy = include:"+TRUSTED_FORWARDER_HOST); 062 try { 063 IncludeMechanism trusted = new IncludeMechanism() { 064 /** 065 * Set the host to use 066 * 067 * @param host the host to include 068 */ 069 public synchronized IncludeMechanism setHost(String host) { 070 this.host = host; 071 return this; 072 } 073 }.setHost(TRUSTED_FORWARDER_HOST); 074 spfRecord.getDirectives().add(spfRecord.getDirectives().size()-1, new Directive(null, trusted, log.getChildLogger("trustedforwarder"))); 075 } catch (PermErrorException e) { 076 // will never happen 077 } 078 } 079 return spfRecord; 080 } 081 }