Show information about and contents of messages : Email Message « Email « Java






Show information about and contents of messages

 
/*
 * @(#)msgshow.java 1.33 05/12/09
 *
 * Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * 
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
 * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND
 * ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES OR LIABILITIES
 * SUFFERED BY LICENSEE AS A RESULT OF  OR RELATING TO USE, MODIFICATION
 * OR DISTRIBUTION OF THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL
 * SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
 * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
 * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
 * ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS
 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that Software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of any
 * nuclear facility.
 */

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import java.util.Properties;

import javax.mail.Address;
import javax.mail.FetchProfile;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.URLName;
import javax.mail.event.StoreEvent;
import javax.mail.event.StoreListener;
import javax.mail.internet.ContentType;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.ParseException;

// import javax.activation.*;

/*
 * Demo app that exercises the Message interfaces. Show information about and
 * contents of messages.
 * 
 * @author John Mani @author Bill Shannon
 */

public class MainClass {

  static String protocol;

  static String host = null;

  static String user = null;

  static String password = null;

  static String mbox = null;

  static String url = null;

  static int port = -1;

  static boolean verbose = false;

  static boolean debug = false;

  static boolean showStructure = false;

  static boolean showMessage = false;

  static boolean showAlert = false;

  static boolean saveAttachments = false;

  static int attnum = 1;

  public static void main(String argv[]) {
    int msgnum = -1;
    int optind;
    InputStream msgStream = System.in;

    for (optind = 0; optind < argv.length; optind++) {
      if (argv[optind].equals("-T")) {
        protocol = argv[++optind];
      } else if (argv[optind].equals("-H")) {
        host = argv[++optind];
      } else if (argv[optind].equals("-U")) {
        user = argv[++optind];
      } else if (argv[optind].equals("-P")) {
        password = argv[++optind];
      } else if (argv[optind].equals("-v")) {
        verbose = true;
      } else if (argv[optind].equals("-D")) {
        debug = true;
      } else if (argv[optind].equals("-f")) {
        mbox = argv[++optind];
      } else if (argv[optind].equals("-L")) {
        url = argv[++optind];
      } else if (argv[optind].equals("-p")) {
        port = Integer.parseInt(argv[++optind]);
      } else if (argv[optind].equals("-s")) {
        showStructure = true;
      } else if (argv[optind].equals("-S")) {
        saveAttachments = true;
      } else if (argv[optind].equals("-m")) {
        showMessage = true;
      } else if (argv[optind].equals("-a")) {
        showAlert = true;
      } else if (argv[optind].equals("--")) {
        optind++;
        break;
      } else if (argv[optind].startsWith("-")) {
        System.out.println("Usage: msgshow [-L url] [-T protocol] [-H host] [-p port] [-U user]");
        System.out.println("\t[-P password] [-f mailbox] [msgnum] [-v] [-D] [-s] [-S] [-a]");
        System.out.println("or     msgshow -m [-v] [-D] [-s] [-S] [-f msg-file]");
        System.exit(1);
      } else {
        break;
      }
    }

    try {
      if (optind < argv.length)
        msgnum = Integer.parseInt(argv[optind]);

      // Get a Properties object
      Properties props = System.getProperties();

      // Get a Session object
      Session session = Session.getInstance(props, null);
      session.setDebug(debug);

      if (showMessage) {
        MimeMessage msg;
        if (mbox != null)
          msg = new MimeMessage(session, new BufferedInputStream(new FileInputStream(mbox)));
        else
          msg = new MimeMessage(session, msgStream);
        dumpPart(msg);
        System.exit(0);
      }

      // Get a Store object
      Store store = null;
      if (url != null) {
        URLName urln = new URLName(url);
        store = session.getStore(urln);
        if (showAlert) {
          store.addStoreListener(new StoreListener() {
            public void notification(StoreEvent e) {
              String s;
              if (e.getMessageType() == StoreEvent.ALERT)
                s = "ALERT: ";
              else
                s = "NOTICE: ";
              System.out.println(s + e.getMessage());
            }
          });
        }
        store.connect();
      } else {
        if (protocol != null)
          store = session.getStore(protocol);
        else
          store = session.getStore();

        // Connect
        if (host != null || user != null || password != null)
          store.connect(host, port, user, password);
        else
          store.connect();
      }

      // Open the Folder

      Folder folder = store.getDefaultFolder();
      if (folder == null) {
        System.out.println("No default folder");
        System.exit(1);
      }

      if (mbox == null)
        mbox = "INBOX";
      folder = folder.getFolder(mbox);
      if (folder == null) {
        System.out.println("Invalid folder");
        System.exit(1);
      }

      // try to open read/write and if that fails try read-only
      try {
        folder.open(Folder.READ_WRITE);
      } catch (MessagingException ex) {
        folder.open(Folder.READ_ONLY);
      }
      int totalMessages = folder.getMessageCount();

      if (totalMessages == 0) {
        System.out.println("Empty folder");
        folder.close(false);
        store.close();
        System.exit(1);
      }

      if (verbose) {
        int newMessages = folder.getNewMessageCount();
        System.out.println("Total messages = " + totalMessages);
        System.out.println("New messages = " + newMessages);
        System.out.println("-------------------------------");
      }

      if (msgnum == -1) {
        // Attributes & Flags for all messages ..
        Message[] msgs = folder.getMessages();

        // Use a suitable FetchProfile
        FetchProfile fp = new FetchProfile();
        fp.add(FetchProfile.Item.ENVELOPE);
        fp.add(FetchProfile.Item.FLAGS);
        fp.add("X-Mailer");
        folder.fetch(msgs, fp);

        for (int i = 0; i < msgs.length; i++) {
          System.out.println("--------------------------");
          System.out.println("MESSAGE #" + (i + 1) + ":");
          dumpEnvelope(msgs[i]);
          // dumpPart(msgs[i]);
        }
      } else {
        System.out.println("Getting message number: " + msgnum);
        Message m = null;

        try {
          m = folder.getMessage(msgnum);
          dumpPart(m);
        } catch (IndexOutOfBoundsException iex) {
          System.out.println("Message number out of range");
        }
      }

      folder.close(false);
      store.close();
    } catch (Exception ex) {
      System.out.println("Oops, got exception! " + ex.getMessage());
      ex.printStackTrace();
      System.exit(1);
    }
    System.exit(0);
  }

  public static void dumpPart(Part p) throws Exception {
    if (p instanceof Message)
      dumpEnvelope((Message) p);

    /**
     * Dump input stream ..
     * 
     * InputStream is = p.getInputStream(); // If "is" is not already buffered,
     * wrap a BufferedInputStream // around it. if (!(is instanceof
     * BufferedInputStream)) is = new BufferedInputStream(is); int c; while ((c =
     * is.read()) != -1) System.out.write(c);
     * 
     */

    String ct = p.getContentType();
    try {
      pr("CONTENT-TYPE: " + (new ContentType(ct)).toString());
    } catch (ParseException pex) {
      pr("BAD CONTENT-TYPE: " + ct);
    }
    String filename = p.getFileName();
    if (filename != null)
      pr("FILENAME: " + filename);

    /*
     * Using isMimeType to determine the content type avoids fetching the actual
     * content data until we need it.
     */
    if (p.isMimeType("text/plain")) {
      pr("This is plain text");
      pr("---------------------------");
      if (!showStructure && !saveAttachments)
        System.out.println((String) p.getContent());
    } else if (p.isMimeType("multipart/*")) {
      pr("This is a Multipart");
      pr("---------------------------");
      Multipart mp = (Multipart) p.getContent();
      level++;
      int count = mp.getCount();
      for (int i = 0; i < count; i++)
        dumpPart(mp.getBodyPart(i));
      level--;
    } else if (p.isMimeType("message/rfc822")) {
      pr("This is a Nested Message");
      pr("---------------------------");
      level++;
      dumpPart((Part) p.getContent());
      level--;
    } else {
      if (!showStructure && !saveAttachments) {
        /*
         * If we actually want to see the data, and it's not a MIME type we
         * know, fetch it and check its Java type.
         */
        Object o = p.getContent();
        if (o instanceof String) {
          pr("This is a string");
          pr("---------------------------");
          System.out.println((String) o);
        } else if (o instanceof InputStream) {
          pr("This is just an input stream");
          pr("---------------------------");
          InputStream is = (InputStream) o;
          int c;
          while ((c = is.read()) != -1)
            System.out.write(c);
        } else {
          pr("This is an unknown type");
          pr("---------------------------");
          pr(o.toString());
        }
      } else {
        // just a separator
        pr("---------------------------");
      }
    }

    /*
     * If we're saving attachments, write out anything that looks like an
     * attachment into an appropriately named file. Don't overwrite existing
     * files to prevent mistakes.
     */
    if (saveAttachments && level != 0 && !p.isMimeType("multipart/*")) {
      String disp = p.getDisposition();
      // many mailers don't include a Content-Disposition
      if (disp == null || disp.equalsIgnoreCase(Part.ATTACHMENT)) {
        if (filename == null)
          filename = "Attachment" + attnum++;
        pr("Saving attachment to file " + filename);
        try {
          File f = new File(filename);
          if (f.exists())
            // XXX - could try a series of names
            throw new IOException("file exists");
          ((MimeBodyPart) p).saveFile(f);
        } catch (IOException ex) {
          pr("Failed to save attachment: " + ex);
        }
        pr("---------------------------");
      }
    }
  }

  public static void dumpEnvelope(Message m) throws Exception {
    pr("This is the message envelope");
    pr("---------------------------");
    Address[] a;
    // FROM
    if ((a = m.getFrom()) != null) {
      for (int j = 0; j < a.length; j++)
        pr("FROM: " + a[j].toString());
    }

    // TO
    if ((a = m.getRecipients(Message.RecipientType.TO)) != null) {
      for (int j = 0; j < a.length; j++) {
        pr("TO: " + a[j].toString());
        InternetAddress ia = (InternetAddress) a[j];
        if (ia.isGroup()) {
          InternetAddress[] aa = ia.getGroup(false);
          for (int k = 0; k < aa.length; k++)
            pr("  GROUP: " + aa[k].toString());
        }
      }
    }

    // SUBJECT
    pr("SUBJECT: " + m.getSubject());

    // DATE
    Date d = m.getSentDate();
    pr("SendDate: " + (d != null ? d.toString() : "UNKNOWN"));

    // FLAGS
    Flags flags = m.getFlags();
    StringBuffer sb = new StringBuffer();
    Flags.Flag[] sf = flags.getSystemFlags(); // get the system flags

    boolean first = true;
    for (int i = 0; i < sf.length; i++) {
      String s;
      Flags.Flag f = sf[i];
      if (f == Flags.Flag.ANSWERED)
        s = "\\Answered";
      else if (f == Flags.Flag.DELETED)
        s = "\\Deleted";
      else if (f == Flags.Flag.DRAFT)
        s = "\\Draft";
      else if (f == Flags.Flag.FLAGGED)
        s = "\\Flagged";
      else if (f == Flags.Flag.RECENT)
        s = "\\Recent";
      else if (f == Flags.Flag.SEEN)
        s = "\\Seen";
      else
        continue; // skip it
      if (first)
        first = false;
      else
        sb.append(' ');
      sb.append(s);
    }

    String[] uf = flags.getUserFlags(); // get the user flag strings
    for (int i = 0; i < uf.length; i++) {
      if (first)
        first = false;
      else
        sb.append(' ');
      sb.append(uf[i]);
    }
    pr("FLAGS: " + sb.toString());

    // X-MAILER
    String[] hdrs = m.getHeader("X-Mailer");
    if (hdrs != null)
      pr("X-Mailer: " + hdrs[0]);
    else
      pr("X-Mailer NOT available");
  }

  static String indentStr = "                                               ";

  static int level = 0;

  /**
   * Print a, possibly indented, string.
   */
  public static void pr(String s) {
    if (showStructure)
      System.out.print(indentStr.substring(0, level * 2));
    System.out.println(s);
  }
}


           
         
  








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