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.RFC2822Headers;
21 import org.apache.mailet.GenericMatcher;
22 import org.apache.mailet.Mail;
23
24 import javax.mail.Header;
25 import javax.mail.internet.MimeMessage;
26 import java.util.Collection;
27 import java.util.Enumeration;
28
29 /***
30 *
31 * @version 1.0.0, 1/5/2000
32 */
33
34 public class RelayLimit extends GenericMatcher {
35 int limit = 30;
36
37 public void init() {
38 limit = Integer.parseInt(getCondition());
39 }
40
41 public Collection match(Mail mail) throws javax.mail.MessagingException {
42 MimeMessage mm = mail.getMessage();
43 int count = 0;
44 for (Enumeration e = mm.getAllHeaders(); e.hasMoreElements();) {
45 Header hdr = (Header)e.nextElement();
46 if (hdr.getName().equals(RFC2822Headers.RECEIVED)) {
47 count++;
48 }
49 }
50 if (count >= limit) {
51 return mail.getRecipients();
52 } else {
53 return null;
54 }
55 }
56 }