1 /************************************************************************
2 * Copyright (c) 2000-2006 The Apache Software Foundation. *
3 * All rights reserved. *
4 * ------------------------------------------------------------------- *
5 * Licensed under the Apache License, Version 2.0 (the "License"); you *
6 * may not use this file except in compliance with the License. You *
7 * may obtain a copy of the License at: *
8 * *
9 * http://www.apache.org/licenses/LICENSE-2.0 *
10 * *
11 * Unless required by applicable law or agreed to in writing, software *
12 * distributed under the License is distributed on an "AS IS" BASIS, *
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or *
14 * implied. See the License for the specific language governing *
15 * permissions and limitations under the License. *
16 ***********************************************************************/
17
18 package org.apache.james.transport.matchers;
19
20 import org.apache.mailet.GenericMatcher;
21 import org.apache.mailet.Mail;
22
23 import java.util.Collection;
24 import java.util.Collections;
25 import java.util.Locale;
26 import java.util.StringTokenizer;
27
28 /***
29 * Checkes the sender's displayed domain name against a supplied list.
30 *
31 * Sample configuration:
32 *
33 * <mailet match="SenderHostIs=domain.com" class="ToProcessor">
34 * <processor> spam </processor>
35 * </mailet>
36 *
37 * @version 1.0.0, 2002-09-10
38 */
39 public class SenderHostIs extends GenericMatcher {
40 /***
41 * The collection of host names to match against.
42 */
43 private Collection senderHosts;
44
45 /***
46 * Initialize the mailet.
47 */
48 public void init() {
49
50 StringTokenizer st = new StringTokenizer(getCondition(), ", ", false);
51
52
53 senderHosts = new java.util.HashSet();
54 while (st.hasMoreTokens()) {
55 senderHosts.add(st.nextToken().toLowerCase(Locale.US));
56 }
57 senderHosts = Collections.unmodifiableCollection(senderHosts);
58 }
59
60 /***
61 * Takes the message and checks the sender (if there is one) against
62 * the vector of host names.
63 *
64 * Returns the collection of recipients if there's a match.
65 *
66 * @param mail the mail being processed
67 */
68 public Collection match(Mail mail) {
69 try {
70 if (mail.getSender() != null && senderHosts.contains(mail.getSender().getHost().toLowerCase(Locale.US))) {
71 return mail.getRecipients();
72 }
73 } catch (Exception e) {
74 log(e.getMessage());
75 }
76
77 return null;
78 }
79 }