1 /**************************************************************** 2 * Licensed to the Apache Software Foundation (ASF) under one * 3 * or more contributor license agreements. See the NOTICE file * 4 * distributed with this work for additional information * 5 * regarding copyright ownership. The ASF licenses this file * 6 * to you under the Apache License, Version 2.0 (the * 7 * "License"); you may not use this file except in compliance * 8 * with the License. You may obtain a copy of the License at * 9 * * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, * 13 * software distributed under the License is distributed on an * 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * 15 * KIND, either express or implied. See the License for the * 16 * specific language governing permissions and limitations * 17 * under the License. * 18 ****************************************************************/ 19 20 21 package org.apache.james.jspf.terms; 22 23 import org.apache.james.jspf.core.DNSLookupContinuation; 24 import org.apache.james.jspf.core.SPFSession; 25 import org.apache.james.jspf.core.SPFTermsRegexps; 26 import org.apache.james.jspf.core.exceptions.PermErrorException; 27 28 /** 29 * This Class represent an Unknown Modifier 30 * 31 */ 32 public class UnknownModifier implements Modifier, ConfigurationEnabled { 33 34 /** 35 * ABNF: name = ALPHA *( ALPHA / DIGIT / "-" / "_" / "." ) ABNF: 36 * unknown-modifier = name "=" macro-string 37 */ 38 public static final String REGEX = "(" + SPFTermsRegexps.ALPHA_PATTERN + "{1}" 39 + "[A-Za-z0-9\\-\\_\\.]*" + ")" + "\\=(" 40 + SPFTermsRegexps.MACRO_STRING_REGEX + ")"; 41 42 /** 43 * @see org.apache.james.jspf.core.SPFChecker#checkSPF(org.apache.james.jspf.core.SPFSession) 44 */ 45 public DNSLookupContinuation checkSPF(SPFSession spfData) throws PermErrorException { 46 return null; 47 } 48 49 /** 50 * @see org.apache.james.jspf.terms.Modifier#enforceSingleInstance() 51 */ 52 public boolean enforceSingleInstance() { 53 return false; 54 } 55 56 /** 57 * @see org.apache.james.jspf.terms.ConfigurationEnabled#config(org.apache.james.jspf.terms.Configuration) 58 */ 59 public synchronized void config(Configuration params) throws PermErrorException { 60 if (params.groupCount() >= 2 && params.group(1) != null) { 61 String name = params.group(1).toLowerCase(); 62 if ("exp".equals(name) || "redirect".equals(name)) { 63 throw new PermErrorException("exp and redirect are not valid names for unknown modifier: this probably means an invalid syntax for exp or redirect fallback to the unkown modifier."); 64 } 65 } 66 } 67 68 }