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Java > Open Source Codes > org > columba > mail > spam > rules > MissingToHeaderRule


1 // The contents of this file are subject to the Mozilla Public License Version
2 // 1.1
3 //(the "License"); you may not use this file except in compliance with the
4 //License. You may obtain a copy of the License at http://www.mozilla.org/MPL/
5 //
6 //Software distributed under the License is distributed on an "AS IS" basis,
7 //WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
8 //for the specific language governing rights and
9 //limitations under the License.
10 //
11 //The Original Code is "The Columba Project"
12 //
13 //The Initial Developers of the Original Code are Frederik Dietz and Timo
14 // Stich.
15 //Portions created by Frederik Dietz and Timo Stich are Copyright (C) 2003.
16 //
17 //All Rights Reserved.
18 package org.columba.mail.spam.rules;
19
20 import org.columba.mail.folder.IMailbox;
21 import org.columba.ristretto.message.Header;
22
23
24 /**
25  * Check if To: header is missing.
26  *
27  * @author fdietz
28  *
29  */
30 public class MissingToHeaderRule extends AbstractRule {
31
32     public MissingToHeaderRule() {
33         super("MissingToHeaderRule");
34     }
35     /**
36      * @see org.columba.mail.spam.rules.Rule#score(IMailbox, java.lang.Object)
37      */
38     public float score(IMailbox folder, Object JavaDoc uid) throws Exception JavaDoc {
39         Header header = folder.getHeaderFields(uid, new String JavaDoc[] { "To"});
40         String JavaDoc from = header.get("To");
41         if (from == null) return MAX_PROBABILITY;
42         if (from.length() == 0) return MAX_PROBABILITY;
43         
44         return NEARLY_ZERO;
45     }
46
47 }
48
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