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 package org.apache.jsieve.mail; 21 22 import java.util.ArrayList; 23 import java.util.List; 24 25 /** 26 * Class MailUtils implements utility methods that are useful when processing 27 * Sieve mail. 28 */ 29 public class MailUtils { 30 31 /** 32 * Constructor for MailUtils. 33 */ 34 protected MailUtils() { 35 super(); 36 } 37 38 /** 39 * <p> 40 * Method getMatchingHeader answers a List of all of the headers in the mail 41 * with the passed name. If no headers are found an empty List is returned. 42 * </p> 43 * 44 * <p> 45 * This method differs from MailAdapter.getHeader(String) in that it ignores 46 * case and whitespace prefixes and suffixes to a header name when 47 * performing the match, as required by RFC 3028. Thus "From", "from ", " 48 * From" and " from " are considered equal. 49 * </p> 50 * 51 * @param name 52 * @return List 53 * @throws SieveMailException 54 */ 55 static public List<String> getMatchingHeader(MailAdapter mail, String name) 56 throws SieveMailException {; 57 final List<String> matchedHeaderValues = new ArrayList<String>(32); 58 for (String headerName: mail.getHeaderNames()) { 59 if (headerName.trim().equalsIgnoreCase(name)) 60 matchedHeaderValues.addAll(mail.getHeader(headerName)); 61 } 62 return matchedHeaderValues; 63 } 64 }