Java tutorial
/* * Copyright (c) 1997-2010 Oracle and/or its affiliates. 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. * * - Redistributions 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 Oracle nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ import java.util.*; import java.io.*; import javax.mail.*; import javax.mail.internet.*; import javax.activation.*; /* * Demo app that exercises the Message interfaces. * Access message given its UID. * Show information about and contents of messages. * * @author John Mani * @author Bill Shannon */ public class uidmsgshow { static String protocol; static String host = null; static String user = null; static String password = null; static String mbox = "INBOX"; static String url = null; static boolean verbose = false; public static void main(String argv[]) { long uid = -1; int optind; 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("-f")) { mbox = argv[++optind]; } else if (argv[optind].equals("-L")) { url = argv[++optind]; } else if (argv[optind].equals("--")) { optind++; break; } else if (argv[optind].startsWith("-")) { System.out.println( "Usage: uidmsgshow [-L url] [-T protocol] [-H host] [-U user] [-P password] [-f mailbox] [uid] [-v]"); System.exit(1); } else { break; } } try { if (optind < argv.length) uid = Long.parseLong(argv[optind]); // Get a Properties object Properties props = System.getProperties(); // Get a Session object Session session = Session.getInstance(props, null); // session.setDebug(true); // Get a Store object Store store = null; if (url != null) { URLName urln = new URLName(url); store = session.getStore(urln); 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, user, password); else store.connect(); } // Open the Folder Folder folder = store.getDefaultFolder(); if (folder == null) { System.out.println("No default folder"); System.exit(1); } folder = folder.getFolder(mbox); if (!folder.exists()) { System.out.println(mbox + " does not exist"); System.exit(1); } if (!(folder instanceof UIDFolder)) { System.out.println("This Provider or this folder does not support UIDs"); System.exit(1); } UIDFolder ufolder = (UIDFolder) folder; folder.open(Folder.READ_WRITE); 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 (uid == -1) { // Attributes & Flags for ALL messages .. Message[] msgs = ufolder.getMessagesByUID(1, UIDFolder.LASTUID); // 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 UID #" + ufolder.getUID(msgs[i]) + ":"); dumpEnvelope(msgs[i]); // dumpPart(msgs[i]); } } else { System.out.println("Getting message UID: " + uid); Message m = ufolder.getMessageByUID(uid); if (m != null) dumpPart(m); else System.out.println("This Message does not exist on this folder"); } folder.close(false); store.close(); } catch (Exception ex) { System.out.println("Oops, got exception! " + ex.getMessage()); ex.printStackTrace(); } System.exit(1); } public static void dumpPart(Part p) throws Exception { if (p instanceof Message) dumpEnvelope((Message) p); /* Dump input stream InputStream is = new BufferedInputStream(p.getInputStream()); int c; while ((c = is.read()) != -1) System.out.write(c); */ System.out.println("CONTENT-TYPE: " + p.getContentType()); Object o = p.getContent(); if (o instanceof String) { System.out.println("This is a String"); System.out.println("---------------------------"); System.out.println((String) o); } else if (o instanceof Multipart) { System.out.println("This is a Multipart"); System.out.println("---------------------------"); Multipart mp = (Multipart) o; int count = mp.getCount(); for (int i = 0; i < count; i++) dumpPart(mp.getBodyPart(i)); } else if (o instanceof Message) { System.out.println("This is a Nested Message"); System.out.println("---------------------------"); dumpPart((Part) o); } else if (o instanceof InputStream) { System.out.println("This is just an input stream"); System.out.println("---------------------------"); InputStream is = (InputStream) o; int c; while ((c = is.read()) != -1) System.out.write(c); } } public static void dumpEnvelope(Message m) throws Exception { System.out.println("This is the message envelope"); System.out.println("---------------------------"); Address[] a; // FROM if ((a = m.getFrom()) != null) { for (int j = 0; j < a.length; j++) System.out.println("FROM: " + a[j].toString()); } // TO if ((a = m.getRecipients(Message.RecipientType.TO)) != null) { for (int j = 0; j < a.length; j++) System.out.println("TO: " + a[j].toString()); } // SUBJECT System.out.println("SUBJECT: " + m.getSubject()); // DATE Date d = m.getSentDate(); System.out.println("SendDate: " + (d != null ? d.toString() : "UNKNOWN")); // SIZE System.out.println("Size: " + m.getSize()); // 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]); } System.out.println("FLAGS = " + sb.toString()); // X-MAILER String[] hdrs = m.getHeader("X-Mailer"); if (hdrs != null) System.out.println("X-Mailer: " + hdrs[0]); else System.out.println("X-Mailer NOT available"); } }