01: // The contents of this file are subject to the Mozilla Public License Version
02: // 1.1
03: //(the "License"); you may not use this file except in compliance with the
04: //License. You may obtain a copy of the License at http://www.mozilla.org/MPL/
05: //
06: //Software distributed under the License is distributed on an "AS IS" basis,
07: //WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
08: //for the specific language governing rights and
09: //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: * Check if To: header is missing.
25: *
26: * @author fdietz
27: *
28: */
29: public class MissingToHeaderRule extends AbstractRule {
30:
31: public MissingToHeaderRule() {
32: super ("MissingToHeaderRule");
33: }
34:
35: /**
36: * @see org.columba.mail.spam.rules.Rule#score(IMailbox, java.lang.Object)
37: */
38: public float score(IMailbox folder, Object uid) throws Exception {
39: Header header = folder.getHeaderFields(uid,
40: new String[] { "To" });
41: String from = header.get("To");
42: if (from == null)
43: return MAX_PROBABILITY;
44: if (from.length() == 0)
45: return MAX_PROBABILITY;
46:
47: return NEARLY_ZERO;
48: }
49:
50: }
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