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19
20
21
22 package org.apache.james.transport.mailets.listservcommands;
23
24 import org.apache.avalon.framework.configuration.Configuration;
25 import org.apache.avalon.framework.configuration.ConfigurationException;
26 import org.apache.james.api.user.UsersRepository;
27 import org.apache.james.transport.mailets.ICommandListservManager;
28 import org.apache.james.util.XMLResources;
29 import org.apache.mailet.Mail;
30 import org.apache.mailet.MailAddress;
31
32 import javax.mail.MessagingException;
33 import java.util.Properties;
34
35 /**
36 * Subscribe handles the subscribe command.
37 * It is configured by:
38 * <pre><command name="subscribe" class="Subscribe"/></pre>
39 *
40 * <br />
41 * <br />
42 *
43 * It uses the formatted text-based resources for its return mail body:
44 * <ul>
45 * <li>subscribe
46 * </ul>
47 *
48 * <br />
49 * <br />
50 * After formatting the text, the message is delivered with {@link #sendStandardReply(Mail, String, String, String)}
51 *
52 * Note, prior to formatting and sending any text, the user is checked to see if they
53 * are already subscribed to this list. If not, they will be sent a confirmation mail to
54 * be processed by {@link SubscribeConfirm}
55 *
56 * @version CVS $Revision: 684466 $ $Date: 2008-08-10 12:42:08 +0100 (Sun, 10 Aug 2008) $
57 * @since 2.2.0
58 * @see SubscribeConfirm
59 */
60 public class Subscribe extends BaseCommand {
61
62 //For resources
63 protected XMLResources xmlResources;
64
65
66
67 public void init(ICommandListservManager commandListservManager, Configuration configuration) throws ConfigurationException {
68 super.init(commandListservManager, configuration);
69 xmlResources = initXMLResources(new String[]{"subscribe"})[0];
70 }
71
72 /**
73 * After ensuring that the user isn't already subscribed, confirmation mail
74 * will be sent to be processed by {@link SubscribeConfirm}.
75 *
76 * @param mail
77 * @throws MessagingException
78 */
79 public void onCommand(Mail mail) throws MessagingException {
80 if (checkSubscriptionStatus(mail)) {
81 //send confirmation mail
82 Properties props = getStandardProperties();
83 props.put("SENDER_ADDR", mail.getSender().toString());
84
85 String confirmationMail = xmlResources.getString("text", props);
86 String subject = xmlResources.getString("confirm.subscribe.subject", props);
87 String replyAddress = xmlResources.getString("confirm.subscribe.address", props);
88
89 sendStandardReply(mail, subject, confirmationMail, replyAddress);
90 }
91 }
92
93 /**
94 * Checks to see if this user is already subscribed, if so return false and send a message
95 * @param mail
96 * @return false if the user is subscribed, true otherwise
97 * @throws MessagingException
98 */
99 protected boolean checkSubscriptionStatus(Mail mail) throws MessagingException {
100 MailAddress mailAddress = mail.getSender();
101 UsersRepository usersRepository = getUsersRepository();
102 if (usersRepository.contains(mailAddress.toString())) {
103 getCommandListservManager().onError(mail,
104 "Invalid request",
105 xmlResources.getString("already.subscribed", getStandardProperties()));
106 return false;
107 }
108 return true;
109 }
110 }