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Java > Open Source Codes > org > apache > james > transport > matchers > NESSpamCheck


1 /***********************************************************************
2  * Copyright (c) 1999-2004 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: *
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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, *
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14  * implied. See the License for the specific language governing *
15  * permissions and limitations under the License. *
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17
18 package org.apache.james.transport.matchers;
19
20 import org.apache.james.util.RFC2822Headers;
21 import org.apache.mailet.Mail;
22 import org.apache.oro.text.regex.MalformedPatternException;
23
24 import javax.mail.MessagingException JavaDoc;
25
26 /**
27  * This is based on a sample filter.cfg for a Netscape Mail Server to stop
28  * spam.
29  *
30  */
31 public class NESSpamCheck extends GenericRegexMatcher {
32     protected Object JavaDoc NESPatterns[][] = {{RFC2822Headers.RECEIVED, "GAA.*-0600.*EST"},
33     {RFC2822Headers.RECEIVED, "XAA.*-0700.*EDT"},
34     {RFC2822Headers.RECEIVED, "xxxxxxxxxxxxxxxxxxxxx"},
35     {RFC2822Headers.RECEIVED, "untrace?able"},
36     {RFC2822Headers.RECEIVED, "from (baby|bewellnet|kllklk) "},
37     {RFC2822Headers.TO, "Friend@public\\.com"},
38     {RFC2822Headers.TO, "user@the[-_]internet"},
39     {RFC2822Headers.DATE, "/[0-9]+/.+[AP]M.+Time"},
40     {RFC2822Headers.SUBJECT, "^\\(?ADV?[:;)]"},
41     {RFC2822Headers.MESSAGE_ID, "<>"},
42     {RFC2822Headers.MESSAGE_ID_VARIATION, "<>"},
43     {RFC2822Headers.MESSAGE_ID_VARIATION, "<(419\\.43|989\\.28)"},
44     {"X-MimeOLE", "MimeOLE V[^0-9]"},
45             //Added 20-Jun-1999. Appears to be broken spamware.
46 {"MIME-Version", "1.0From"},
47             //Added 28-July-1999. Check X-Mailer for spamware.
48 {"X-Mailer", "DiffondiCool"},
49     {"X-Mailer", "Emailer Platinum"},
50     {"X-Mailer", "eMerge"},
51     {"X-Mailer", "Crescent Internet Tool"},
52             //Added 4-Apr-2000. Check X-Mailer for Cybercreek Avalanche
53 {"X-Mailer", "Avalanche"},
54             //Added 21-Oct-1999. Subject contains 20 or more consecutive spaces
55 {"Subject", " "},
56             //Added 31-Mar-2000. Invalid headers from MyGuestBook.exe CGI spamware
57 {"MessageID", "<.+>"},
58     {"X-References", "0[A-Z0-9]+, 0[A-Z0-9]+$"},
59     {"X-Other-References", "0[A-Z0-9]+$"},
60     {"X-See-Also", "0[A-Z0-9]+$"},
61             //Updated 28-Apr-1999. Check for "Sender", "Resent-From", or "Resent-By"
62 // before "X-UIDL". If found, then exit.
63 {RFC2822Headers.SENDER, ".+"},
64     {RFC2822Headers.RESENT_FROM, ".+"},
65     {"Resent-By", ".+"},
66             //Updated 19-May-1999. Check for "X-Mozilla-Status" before "X-UIDL".
67 {"X-Mozilla-Status", ".+"},
68             //Updated 20-Jul-1999. Check for "X-Mailer: Internet Mail Service"
69 // before "X-UIDL".
70 {"X-Mailer", "Internet Mail Service"},
71             //Updated 25-Oct-1999. Check for "X-ID" before "X-UIDL".
72 {"X-ID", ".+"},
73             //X-UIDL is a POP3 header that should normally not be seen
74 {"X-UIDL", ".*"},
75             //Some headers are valid only for the Pegasus Mail client. So first check
76 //for Pegasus header and exit if found. If not found, check for
77 //invalid headers: "Comments: Authenticated sender", "X-PMFLAGS" and "X-pmrqc".
78 {"X-mailer", "Pegasus"},
79             //Added 27-Aug-1999. Pegasus now uses X-Mailer instead of X-mailer.
80 {"X-Mailer", "Pegasus"},
81             //Added 25-Oct-1999. Check for X-Confirm-Reading-To.
82 {"X-Confirm-Reading-To", ".+"},
83             //Check for invalid Pegasus headers
84 {RFC2822Headers.COMMENTS, "Authenticated sender"},
85     {"X-PMFLAGS", ".*"},
86     {"X-Pmflags", ".*"},
87     {"X-pmrqc", ".*"},
88     {"Host-From:envonly", ".*"}};
89
90     public void init() throws MessagingException JavaDoc {
91         //No condition passed... just compile a bunch of regular expressions
92 try {
93             compile(NESPatterns);
94         } catch(MalformedPatternException mp) {
95             throw new MessagingException JavaDoc("Could not initialize NES patterns", mp);
96         }
97     }
98 }
99
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