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16 * specific language governing permissions and limitations *
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19
20
21 package org.apache.james.mailet.crypto.matcher;
22
23 import java.util.Collection;
24
25 import javax.mail.MessagingException;
26 import javax.mail.internet.MimeMessage;
27
28 import org.apache.mailet.base.GenericMatcher;
29 import org.apache.mailet.Mail;
30
31 /**
32 * checks if a mail is smime signed.
33
34 */
35 public class IsSMIMESigned extends GenericMatcher {
36
37 /**
38 * @see org.apache.mailet.Matcher#match(org.apache.mailet.Mail)
39 */
40 public Collection match(Mail mail) throws MessagingException {
41 if (mail == null) return null;
42
43 MimeMessage message = mail.getMessage();
44 if (message == null) return null;
45
46
47 if (message.isMimeType("multipart/signed")
48 || message.isMimeType("application/pkcs7-signature")
49 || message.isMimeType("application/x-pkcs7-signature")
50 || ((message.isMimeType("application/pkcs7-mime") || message.isMimeType("application/x-pkcs7-mime"))
51 && message.getContentType().indexOf("signed-data") != -1)) {
52 return mail.getRecipients();
53 } else return null;
54 }
55 }