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Borrando correos masivamente usando Javamail

Martes, 30 de diciembre de 2008
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Este articulo es una mejora al código que escribí anteriormente. Jugando un poco con Gmail me di cuenta que los correos aún pueden ser recuperados usando POP3, pese a que fueron borrados con IMAP. Realmente bizarro. Así que modifiqué el programa para que manejara un poco mejor el caso de POP3 o IMAP según las propiedades.

Aquí está el código:

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package com.kodegeek.blog.mail;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
 
import javax.mail.Session;
import javax.mail.Flags.Flag;
import javax.mail.internet.MimeMessage;
import javax.mail.Message;
 
import javax.mail.Folder;
import javax.mail.MessagingException;
import javax.mail.Store;
 
import com.sun.mail.imap.IMAPFolder;
 
import java.io.FileInputStream;
 
/**
 * I wrote this program to erase ALL the email on my GMAIL account. I have over 40,000 email so manually doing so was not an option :)
 * Please check the following resources:
 * <ul>
 * <li> http://java.sun.com/products/javamail/javadocs/index.html</li>
 * <li> http://java.sun.com/developer/onlineTraining/JavaMail/contents.html</li>
 * <li> http://java.sun.com/products/javamail/javadocs/com/sun/mail/imap/package-summary.html</li>
 * <li> http://java.sun.com/products/javamail/downloads/index.html</li>
 * </ul>
 * Also define a properties file with the following (adjust it to your configuration):
 * # As defined by the Javadoc
 * <ul>
 * <li> mail.user=name.lastname@gmail.com</li>
 * <li> mail.password=zzz</li>
 * <li> mail.store.host=pop.imap.gmail.com</li>
 * <li> mail.store.protocol=imap</li>
 * <li> mail.imap.port=993</li>
 * <li> mail.imap.socketFactory.port=993</li>
 * <li> mail.imap.socketFactory.class=javax.net.ssl.SSLSocketFactory</li>
 * </ul>
 * More examples:
 * <ul>
 * <li>POP3: -Dmail.user=name.lastname@gmail.com  -Dmail.password=XXXX -Dmail.store.host=pop.gmail.com -Dmail.store.protocol=pop3 -Dmail.store.folder=INBOX -Dmail.pop3.port=995 -Dmail.pop3.socketFactory.port=995 -Dmail.pop3.socketFactory.class=javax.net.ssl.SSLSocketFactory</li>
 * <li>IMAP: -Dmail.user=name.lastname@gmail.com  -Dmail.password=XXXX -Dmail.store.host=imap.gmail.com -Dmail.store.protocol=imap -Dmail.store.folder=INBOX -Dmail.imap.port=993 -Dmail.imap.socketFactory.port=993 -Dmail.imap.socketFactory.class=javax.net.ssl.SSLSocketFactory</li>
 * </ul>
 * License: GPL
 * http://kodegeek.com
 * @author Jose Vicente Nunez Zuleta
 * @version 12/28/2008
 */
public final class MailBulkEraser {
 
	/**
	 * Command line processing
	 * @param args [0] Location of the properties configuration file, If not provided then will use system defaults (defined with -D)
	 * @throws Exception
	 * @since 0.1
	 */
	public static void main(String [] args) throws Exception {
 
		Logger logger = Logger.getLogger(MailBulkEraser.class.getName());
 
		Properties props = System.getProperties();
		if (args.length == 1) {
			props.load(new FileInputStream(args[0]));
		}
		Session session = Session.getInstance(props, null);
		session.setDebug(Boolean.parseBoolean(props.getProperty("debug")));
		Store store = session.getStore(props.getProperty("mail.store.protocol"));
		logger.info(String.format("Connecting to: %s@%s", props.getProperty("mail.user"), props.getProperty("mail.store.host")));
		store.connect(props.getProperty("mail.store.host"), props.getProperty("mail.user"), props.getProperty("mail.password"));
		Folder folder = store.getDefaultFolder();
		logger.info("Got default folder. Erasing emails from ALL the folders");
		Folder [] folders = folder.list();
		long messgCnt = 0;
		for(Folder currFolder: folders) {
 
			try {
 
				if ((currFolder.getType() & Folder.HOLDS_MESSAGES) == 0) {
					continue; // Skip this folder type
				}
				logger.info(String.format("Opening folder: %s, num messages; %d", currFolder.getFullName(), currFolder.getMessageCount()));
				currFolder.open(Folder.READ_WRITE);
				Message [] messages = currFolder.getMessages();
 
				// Mark all the messages for delete
				for (Message message: messages) {
					try {
						if (! currFolder.isOpen()) {
							logger.warning(String.format("Folder %s is closed. Moving to next folder", currFolder.getFullName()));
							break;
						}
						message.setFlag(Flag.DELETED, true);
						MimeMessage currMessage = (MimeMessage) message;
						logger.info(String.format("Deleting mail subject: '%s', folder: '%s', date: '%s'", currMessage.getSubject(), currMessage.getFolder().getFullName(), currMessage.getSentDate()));
						if (currFolder instanceof IMAPFolder) {
							messages = currFolder.expunge(); // Confirm delete for all the messages on the current folder
						}
						messgCnt += 1;
					}  catch (Throwable thrbl) {
						logger.log(Level.WARNING, "There was a problem erasing the message, ignoring", thrbl);
						continue;
					}
				}
 
				logger.info(String.format("Messages erased on folder %s: %d", currFolder.getFullName(), messages.length));
				currFolder.close(true);
 
			} catch (MessagingException messgExp) {
				logger.log(Level.WARNING, "There was a problem, ignoring", messgExp);
			}
 
		}
		logger.info(String.format("Total number of erased messsages: %d", messgCnt));
		store.close();
		System.exit(0);
	}
 
}

Nota de los cambios:

Que lo disfruten :) .

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