01: /****************************************************************
02: * Licensed to the Apache Software Foundation (ASF) under one *
03: * or more contributor license agreements. See the NOTICE file *
04: * distributed with this work for additional information *
05: * regarding copyright ownership. The ASF licenses this file *
06: * to you under the Apache License, Version 2.0 (the *
07: * "License"); you may not use this file except in compliance *
08: * with the License. You may obtain a copy of the License at *
09: * *
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: ****************************************************************/package org.apache.james.transport.matchers;
19:
20: import org.apache.mailet.GenericMatcher;
21: import org.apache.mailet.Mail;
22:
23: import javax.mail.internet.MimeMessage;
24: import java.util.Collection;
25:
26: /**
27: * Matches mail with a header set by Fetchpop X-fetched-from <br>
28: * fetchpop sets X-fetched-by to the "name" of the fetchpop fetch task.<br>
29: * This is used to match all mail fetched from a specific pop account.
30: * Once the condition is met the header is stripped from the message to prevent looping if the mail is re-inserted into the spool.
31: *
32: * $Id: FetchedFrom.java 494012 2007-01-08 10:23:58Z norman $
33: */
34:
35: public class FetchedFrom extends GenericMatcher {
36: public Collection match(Mail mail)
37: throws javax.mail.MessagingException {
38: MimeMessage message = mail.getMessage();
39: String fetch = message.getHeader("X-fetched-from", null);
40: if (fetch != null && fetch.equals(getCondition())) {
41: mail.getMessage().removeHeader("X-fetched-from");
42: return mail.getRecipients();
43: }
44: return null;
45: }
46: }
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