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19  
20  
21  
22  package org.apache.james.transport.matchers;
23  
24  import java.util.Collection;
25  import java.util.StringTokenizer;
26  
27  import org.apache.mailet.base.GenericMatcher;
28  import org.apache.mailet.Mail;
29  
30  /**
31   * <P>Matches mails that are sent by an SMTP authenticated user present in a supplied list.</P>
32   * <P>If the sender was not authenticated it will not match.</P>
33   * <P>Configuration string: a comma, tab or space separated list of James users.</P>
34   * <PRE><CODE>
35   * &lt;mailet match=&quot;SMTPAuthUserIs=&lt;list-of-user-names&gt;&quot; class=&quot;&lt;any-class&gt;&quot;&gt;
36   * </CODE></PRE>
37   *
38   * @version CVS $Revision: 713949 $ $Date: 2008-11-14 07:40:21 +0000 (Fri, 14 Nov 2008) $
39   * @since 2.2.0
40   */
41  public class SMTPAuthUserIs extends GenericMatcher {
42      
43      /**
44       * The mail attribute holding the SMTP AUTH user name, if any.
45       */
46      private final static String SMTP_AUTH_USER_ATTRIBUTE_NAME = "org.apache.james.SMTPAuthUser";
47      
48      private Collection users;
49  
50      public void init() throws javax.mail.MessagingException {
51          StringTokenizer st = new StringTokenizer(getCondition(), ", \t", false);
52          users = new java.util.HashSet();
53          while (st.hasMoreTokens()) {
54              users.add(st.nextToken());
55          }
56      }
57  
58      public Collection match(Mail mail) {
59          String authUser = (String) mail.getAttribute(SMTP_AUTH_USER_ATTRIBUTE_NAME);
60          if (authUser != null && users.contains(authUser)) {
61              return mail.getRecipients();
62          } else {
63              return null;
64          }
65      }
66  }