Source Code Cross Referenced for MailUtil.java in  » Forum » mvnforum-1.1 » net » myvietnam » mvncore » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Forum » mvnforum 1.1 » net.myvietnam.mvncore.util 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $Header: /cvsroot/mvnforum/myvietnam/src/net/myvietnam/mvncore/util/MailUtil.java,v 1.59 2008/01/24 08:40:51 tbtrung Exp $
003:         * $Author: tbtrung $
004:         * $Revision: 1.59 $
005:         * $Date: 2008/01/24 08:40:51 $
006:         *
007:         * ====================================================================
008:         *
009:         * Copyright (C) 2002-2007 by MyVietnam.net
010:         *
011:         * All copyright notices regarding MyVietnam and MyVietnam CoreLib
012:         * MUST remain intact in the scripts and source code.
013:         *
014:         * This library is free software; you can redistribute it and/or
015:         * modify it under the terms of the GNU Lesser General Public
016:         * License as published by the Free Software Foundation; either
017:         * version 2.1 of the License, or (at your option) any later version.
018:         *
019:         * This library is distributed in the hope that it will be useful,
020:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
021:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
022:         * Lesser General Public License for more details.
023:         *
024:         * You should have received a copy of the GNU Lesser General Public
025:         * License along with this library; if not, write to the Free Software
026:         * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
027:         *
028:         * Correspondence and Marketing Questions can be sent to:
029:         * info at MyVietnam net
030:         *
031:         * @author: Minh Nguyen
032:         * @author: Mai  Nguyen
033:         */
034:        package net.myvietnam.mvncore.util;
035:
036:        import java.io.IOException;
037:        import java.io.UnsupportedEncodingException;
038:        import java.net.InetAddress;
039:        import java.net.UnknownHostException;
040:        import java.util.*;
041:
042:        import javax.mail.*;
043:        import javax.mail.Flags.Flag;
044:        import javax.mail.internet.*;
045:        import javax.naming.InitialContext;
046:        import javax.naming.NamingException;
047:
048:        import net.myvietnam.mvncore.MVNCoreConfig;
049:        import net.myvietnam.mvncore.MVNCoreConfig.MailConfig;
050:        import net.myvietnam.mvncore.exception.BadInputException;
051:        import net.myvietnam.mvncore.filter.DisableHtmlTagFilter;
052:
053:        import org.apache.commons.logging.Log;
054:        import org.apache.commons.logging.LogFactory;
055:        import org.masukomi.aspirin.core.MailQue;
056:
057:        public final class MailUtil {
058:
059:            public static final int MAX_MESSAGES_PER_TRANSPORT = 100;
060:
061:            private static Log log = LogFactory.getLog(MailUtil.class);
062:
063:            private MailUtil() {// prevent instantiation
064:            }
065:
066:            //private static MailOptions mailOption = new MailOptions();
067:
068:            /**
069:             * Get the user name part of an email. Ex: input: test@yahoo.com => output: test
070:             * @param email String the email
071:             * @return String the user name part of an email
072:             */
073:            public static String getEmailUsername(String email) {
074:                if (email == null)
075:                    return "";
076:                int atIndex = email.indexOf('@');
077:                if (atIndex == -1) {
078:                    return "";
079:                }
080:                return email.substring(0, atIndex);
081:            }
082:
083:            /**
084:             * Get the domain part of an email. Ex: input: test@yahoo.com => output: yahoo.com
085:             * @param email String the email
086:             * @return String the user name part of an email
087:             */
088:            public static String getEmailDomain(String email) {
089:                if (email == null)
090:                    return "";
091:                int atIndex = email.indexOf('@');
092:                if (atIndex == -1) {
093:                    return "";
094:                }
095:                return email.substring(atIndex + 1);
096:            }
097:
098:            /**
099:             * Check if an email is good and safe or not.
100:             * This method should be use for all email input from user
101:             * @param input String
102:             * @throws BadInputException if email is not good
103:             */
104:            public static void checkGoodEmail(String input)
105:                    throws BadInputException {
106:                if (input == null)
107:                    throw new BadInputException(
108:                            "Sorry, null string is not a good email.");//@todo : localize me
109:                int atIndex = input.indexOf('@');
110:                int dotIndex = input.lastIndexOf('.');
111:                if ((atIndex == -1) || (dotIndex == -1)
112:                        || (atIndex >= dotIndex)) {
113:                    //@todo : localize me
114:                    throw new BadInputException("Error: '"
115:                            + DisableHtmlTagFilter.filter(input)
116:                            + "' is not a valid email value. Please try again.");
117:                }
118:
119:                // now check for content of the string
120:                int length = input.length();
121:                char c = 0;
122:
123:                for (int i = 0; i < length; i++) {
124:                    c = input.charAt(i);
125:                    if ((c >= 'a') && (c <= 'z')) {
126:                        // lower char
127:                    } else if ((c >= 'A') && (c <= 'Z')) {
128:                        // upper char
129:                    } else if ((c >= '0') && (c <= '9')/* && (i != 0)*/) {
130:                        // as of 31 Jan 2004, i relax the email checking
131:                        // so that the email can start with an numeric char
132:                        // hopefully it does not introduce a security bug
133:                        // because this value will be inserted into sql script
134:
135:                        // numeric char
136:                    } else if (((c == '_') || (c == '-') || (c == '.') || (c == '@'))
137:                            && (i != 0)) {
138:                        // _ char
139:                    } else {
140:                        // not good char, throw an BadInputException
141:                        //@todo : localize me
142:                        throw new BadInputException(input
143:                                + " is not a valid email. Reason: character '"
144:                                + c + "' is not accepted in an email.");
145:                    }
146:                }// for
147:
148:                // last check
149:                try {
150:                    new javax.mail.internet.InternetAddress(input);
151:                } catch (Exception ex) {
152:                    log.error("Error when running checkGoodEmail", ex);
153:                    throw new BadInputException(
154:                            "Assertion: dont want to occur in Util.checkGoodEmail");
155:                }
156:            }
157:
158:            /**
159:             * NOTE: param to, cc, bcc cannot be all empty. At least one must have a valid value
160:             * @param from : must be a valid email. However, if this param is null,
161:             *              then the default mail in config file will be use
162:             * @param to : can be null
163:             * @param cc : can be null
164:             * @param bcc: can be null
165:             * @param subject
166:             * @param message
167:             * @throws MessagingException
168:             * @throws BadInputException
169:             */
170:            public static void sendMail(String from, String to, String cc,
171:                    String bcc, String subject, String message,
172:                    boolean sendAsHTML) throws MessagingException,
173:                    BadInputException, UnsupportedEncodingException {
174:
175:                MailMessageStruct mailItem = new MailMessageStruct();
176:                mailItem.setFrom(from);
177:                mailItem.setTo(to);
178:                mailItem.setCc(cc);
179:                mailItem.setBcc(bcc);
180:                mailItem.setSubject(subject);
181:                mailItem.setMessage(message);
182:                mailItem.setSendAsHtml(sendAsHTML);
183:
184:                sendMail(mailItem);
185:            }
186:
187:            public static void sendMail(InternetAddress from, String to,
188:                    String cc, String bcc, String subject, String message,
189:                    boolean sendAsHTML) throws MessagingException,
190:                    BadInputException, UnsupportedEncodingException {
191:
192:                MailMessageStruct mailItem = new MailMessageStruct();
193:                mailItem.setFrom(from.getAddress());
194:                mailItem.setFromDisplayName(from.getPersonal());
195:                mailItem.setTo(to);
196:                mailItem.setCc(cc);
197:                mailItem.setBcc(bcc);
198:                mailItem.setSubject(subject);
199:                mailItem.setMessage(message);
200:                mailItem.setSendAsHtml(sendAsHTML);
201:
202:                sendMail(mailItem);
203:            }
204:
205:            public static void sendMail(MailMessageStruct mailItem)
206:                    throws MessagingException, BadInputException,
207:                    UnsupportedEncodingException {
208:
209:                ArrayList mailList = new ArrayList(1);
210:                mailList.add(mailItem);
211:                try {
212:                    sendMail(mailList);
213:                } catch (MessagingException mex) {
214:                    log.error("MessagingException has occured.", mex);
215:                    log.debug("MessagingException has occured. Detail info:");
216:                    log.debug("from = " + mailItem.getFrom());
217:                    log.debug("to = " + mailItem.getTo());
218:                    log.debug("cc = " + mailItem.getCc());
219:                    log.debug("bcc = " + mailItem.getBcc());
220:                    log.debug("subject = " + mailItem.getSubject());
221:                    log.debug("message = " + mailItem.getMessage());
222:                    throw mex;// this may look redundant, but it is not :-)
223:                }
224:            }
225:
226:            public static void sendMail(Collection mailStructCollection)
227:                    throws MessagingException, BadInputException,
228:                    UnsupportedEncodingException {
229:
230:                Session session = null;
231:                Transport transport = null;
232:                int totalEmails = mailStructCollection.size();
233:                int count = 0;
234:                int sendFailedExceptionCount = 0;
235:
236:                String server = "";
237:                String userName = "";
238:                String password = "";
239:                int port = 25;
240:
241:                MailConfig config = MVNCoreConfig.getSendMailConfig();
242:                boolean useMailsource = config.useMailSource();
243:                boolean useEmbededMailServer = config
244:                        .useEmbededSMTPMailServer();
245:
246:                try {
247:                    for (Iterator iter = mailStructCollection.iterator(); iter
248:                            .hasNext();) {
249:                        if ((transport == null) || (session == null)) {
250:                            if (useEmbededMailServer) {
251:                                session = Session
252:                                        .getDefaultInstance(new Properties());
253:                            } else if (useMailsource) {
254:                                try {
255:                                    InitialContext ic = new InitialContext();
256:                                    // mailSourceName = "java:comp/env/mail/mailSession";
257:                                    String mailSourceName = config
258:                                            .getSourceName();
259:                                    log.debug("MailUtil : use mailsource = "
260:                                            + mailSourceName);
261:                                    session = (Session) ic
262:                                            .lookup("java:comp/env/"
263:                                                    + mailSourceName);
264:                                    transport = session.getTransport("smtp");
265:                                } catch (NamingException e) {
266:                                    log.error("Cannot get Mail session", e);
267:                                    throw new MessagingException(
268:                                            "Cannot get the mail session from JNDI. Send mail failed.");
269:                                }
270:                            } else {// does not use datasourse
271:                                Properties props = new Properties();
272:
273:                                server = config.getMailServer();
274:                                port = config.getPort();
275:                                userName = config.getUserName();
276:                                password = config.getPassword();
277:
278:                                // Local host name used in the SMTP HELO or EHLO command
279:                                try {
280:                                    if (InetAddress.getLocalHost()
281:                                            .getHostName() == null) {
282:                                        props
283:                                                .put("mail.smtp.localhost",
284:                                                        server);
285:                                    }
286:                                } catch (UnknownHostException e) {
287:                                    props.put("mail.smtp.localhost", server);
288:                                }
289:                                props.put("mail.smtp.host", server);
290:                                props.put("mail.smtp.port", String
291:                                        .valueOf(port));
292:                                if ((userName != null)
293:                                        && (userName.length() > 0)) {
294:                                    props.put("mail.smtp.auth", "true");
295:                                }
296:                                props.put("mail.debug", "true");
297:                                session = Session.getDefaultInstance(props,
298:                                        null);
299:                                transport = session.getTransport("smtp");
300:                            }// end of does not use datasource
301:
302:                            if (useEmbededMailServer == false) {
303:                                if ((userName != null)
304:                                        && (userName.length() > 0)) {
305:                                    transport.connect(server, userName,
306:                                            password);
307:                                } else {
308:                                    transport.connect();
309:                                }
310:                            }
311:                        }
312:
313:                        MailMessageStruct mailItem = (MailMessageStruct) iter
314:                                .next();
315:
316:                        String from = mailItem.getFrom();
317:                        String fromDisplayName = mailItem.getFromDisplayName();
318:                        String to = mailItem.getTo();
319:                        String cc = mailItem.getCc();
320:                        String bcc = mailItem.getBcc();
321:                        String subject = mailItem.getSubject();
322:                        String message = mailItem.getMessage();
323:
324:                        //if (from == null) from = mailOption.defaultMailFrom;
325:                        if (from == null)
326:                            from = MVNCoreConfig.getDefaultMailFrom();
327:
328:                        try {
329:                            // this will also check for email error
330:                            checkGoodEmail(from);
331:                            InternetAddress fromAddress = null;
332:                            if (fromDisplayName == null) {
333:                                fromAddress = new InternetAddress(from);
334:                            } else {
335:                                fromAddress = new InternetAddress(from,
336:                                        fromDisplayName);
337:                            }
338:                            InternetAddress[] toAddress = getInternetAddressEmails(to);
339:                            InternetAddress[] ccAddress = getInternetAddressEmails(cc);
340:                            InternetAddress[] bccAddress = getInternetAddressEmails(bcc);
341:                            if ((toAddress == null) && (ccAddress == null)
342:                                    && (bccAddress == null)) {
343:                                //@todo : localize me
344:                                throw new BadInputException(
345:                                        "Cannot send mail since all To, Cc, Bcc addresses are empty.");
346:                            }
347:
348:                            // create a message
349:                            MimeMessage msg = new MimeMessage(session);
350:                            msg.setSentDate(new Date());
351:                            msg.setFrom(fromAddress);
352:
353:                            if (toAddress != null) {
354:                                msg.setRecipients(Message.RecipientType.TO,
355:                                        toAddress);
356:                            }
357:                            if (ccAddress != null) {
358:                                msg.setRecipients(Message.RecipientType.CC,
359:                                        ccAddress);
360:                            }
361:                            if (bccAddress != null) {
362:                                msg.setRecipients(Message.RecipientType.BCC,
363:                                        bccAddress);
364:                            }
365:
366:                            if (mailItem.isSendAsHtml() == false) {
367:                                //This code is use to display unicode in Subject
368:                                //msg.setSubject(MimeUtility.encodeText(subject, "iso-8859-1", "Q"));
369:                                //msg.setText(message);
370:                                //String content = new String(message.getBytes(""), "UTF-8");
371:                                msg.setSubject(subject, "UTF-8");
372:                                msg.setText(message, "UTF-8");
373:                            } else {
374:                                //Below code is use for unicode
375:                                MimeBodyPart messageBodyPart = new MimeBodyPart();
376:                                msg.setSubject(subject, "UTF-8");
377:                                messageBodyPart.setText(message, "UTF-8");
378:                                messageBodyPart.setHeader("Content-Type",
379:                                        "text/html;charset=UTF-8");
380:                                messageBodyPart.setHeader(
381:                                        "Content-Transfer-Encoding",
382:                                        "quoted-printable");
383:                                MimeMultipart multipart = new MimeMultipart(
384:                                        "alternative");
385:                                multipart.addBodyPart(messageBodyPart);
386:                                msg.setContent(multipart);
387:                            }
388:                            msg.saveChanges();
389:
390:                            if (useEmbededMailServer) {
391:                                MailQue.queMail(msg);
392:                            } else {
393:                                transport.sendMessage(msg, msg
394:                                        .getAllRecipients());
395:                            }
396:
397:                            if (useEmbededMailServer == false) {
398:                                // now check if sent 100 emails, then close connection (transport)
399:                                if (((count + 1) % MAX_MESSAGES_PER_TRANSPORT) == 0) {
400:                                    try {
401:                                        if (transport != null)
402:                                            transport.close();
403:                                    } catch (MessagingException ex) {
404:                                    }
405:                                    transport = null;
406:                                    session = null;
407:                                }
408:                            }
409:
410:                        } catch (SendFailedException ex) {
411:                            sendFailedExceptionCount++;
412:                            log.error("SendFailedException has occured.", ex);
413:                            log
414:                                    .warn("SendFailedException has occured. Detail info:");
415:                            log.warn("from = " + from);
416:                            log.warn("to = " + to);
417:                            log.warn("cc = " + cc);
418:                            log.warn("bcc = " + bcc);
419:                            log.warn("subject = " + subject);
420:                            log.info("message = " + message);
421:                            if ((totalEmails != 1)
422:                                    && (sendFailedExceptionCount > 10)) {
423:                                throw ex;// this may look redundant, but it is not :-)
424:                            }
425:                        } catch (MessagingException mex) {
426:                            log.error("MessagingException has occured.", mex);
427:                            log
428:                                    .warn("MessagingException has occured. Detail info:");
429:                            log.warn("from = " + from);
430:                            log.warn("to = " + to);
431:                            log.warn("cc = " + cc);
432:                            log.warn("bcc = " + bcc);
433:                            log.warn("subject = " + subject);
434:                            log.info("message = " + message);
435:                            throw mex;// this may look redundant, but it is not :-)
436:                        }
437:
438:                        // we increase count when send successfully
439:                        count++;
440:                    }//for
441:                } finally {
442:                    try {
443:                        if (transport != null)
444:                            transport.close();
445:                    } catch (MessagingException ex) {
446:                    }
447:
448:                    if (totalEmails != 1) {
449:                        String sendMailMethod = "";
450:                        if (useEmbededMailServer) {
451:                            sendMailMethod = "Embeded SMTP Server";
452:                        } else if (useMailsource) {
453:                            sendMailMethod = "Mail Source";
454:                        } else {
455:                            sendMailMethod = "External SMTP Server";
456:                        }
457:                        log.info("sendMail: totalEmails = " + totalEmails
458:                                + " sent count = " + count + " using "
459:                                + sendMailMethod);
460:                    }
461:                }
462:            }
463:
464:            /**
465:             * This method trim the email variable, so if it contains only spaces,
466:             * then it will be empty string, then we have 0 token :-)
467:             * The returned value is never null
468:             */
469:            public static String[] getEmails(String email)
470:                    throws BadInputException {
471:                if (email == null)
472:                    email = "";
473:                email = email.trim();// very important
474:                email = email.replace(',', ';');// replace all occurrence of ',' to ';'
475:                StringTokenizer t = new StringTokenizer(email, ";");
476:                String[] ret = new String[t.countTokens()];
477:                int index = 0;
478:                while (t.hasMoreTokens()) {
479:                    String mail = t.nextToken().trim();
480:                    checkGoodEmail(mail);
481:                    ret[index] = mail;
482:                    //log.debug(ret[index]);
483:                    index++;
484:                }
485:                return ret;
486:            }
487:
488:            public static String[] getEmails(String to, String cc, String bcc)
489:                    throws BadInputException {
490:                String[] toMail = getEmails(to);
491:                String[] ccMail = getEmails(cc);
492:                String[] bccMail = getEmails(bcc);
493:                String[] ret = new String[toMail.length + ccMail.length
494:                        + bccMail.length];
495:                int index = 0;
496:                for (int i = 0; i < toMail.length; i++) {
497:                    ret[index] = toMail[i];
498:                    index++;
499:                }
500:                for (int i = 0; i < ccMail.length; i++) {
501:                    ret[index] = ccMail[i];
502:                    index++;
503:                }
504:                for (int i = 0; i < bccMail.length; i++) {
505:                    ret[index] = bccMail[i];
506:                    index++;
507:                }
508:                return ret;
509:            }
510:
511:            /**
512:             * This method will return null if there is not any email
513:             *
514:             * @param email
515:             * @return
516:             * @throws BadInputException
517:             * @throws AddressException
518:             */
519:            private static InternetAddress[] getInternetAddressEmails(
520:                    String email) throws BadInputException, AddressException {
521:                String[] mails = getEmails(email);
522:                if (mails.length == 0)
523:                    return null;// must return null, not empty array
524:
525:                //log.debug("to = " + mails);
526:                InternetAddress[] address = new InternetAddress[mails.length];
527:                for (int i = 0; i < mails.length; i++) {
528:                    address[i] = new InternetAddress(mails[i]);
529:                    //log.debug("to each element = " + mails[i]);
530:                }
531:                return address;
532:            }
533:
534:            public static MailMessageStruct[] receiveEmail(String popServer,
535:                    String popUser, String popPassword) {
536:
537:                Store store = null;
538:                Folder folder = null;
539:                MailMessageStruct[] mailMessageStructsArray = null;
540:
541:                try {
542:                    // -- Get hold of the default session --
543:                    Properties props = new Properties();
544:                    props.put("mail.pop3.port", String.valueOf(MVNCoreConfig
545:                            .getReceiveMailConfig().getPort()));
546:                    Session session = Session.getDefaultInstance(props, null);
547:                    session.setDebug(true);
548:
549:                    // -- Get hold of a POP3 message store, and connect to it --
550:                    store = session.getStore("pop3");
551:                    store.connect(popServer, popUser, popPassword);
552:
553:                    // -- Try to get hold of the default folder --
554:                    folder = store.getDefaultFolder();
555:                    if (folder == null) {
556:                        throw new IOException("No default folder");
557:                    }
558:
559:                    // -- ...and its INBOX --
560:                    folder = folder.getFolder("INBOX");
561:                    if (folder == null) {
562:                        throw new IOException("No POP3 INBOX");
563:                    }
564:
565:                    // -- Open the folder for read write --
566:                    folder.open(Folder.READ_WRITE);
567:
568:                    // -- Get the message wrappers and process them --
569:                    Message[] msgs = folder.getMessages();
570:                    mailMessageStructsArray = new MailMessageStruct[msgs.length];
571:                    for (int msgNum = 0; msgNum < msgs.length; msgNum++) {
572:                        mailMessageStructsArray[msgNum] = createMessageStructFromMessage(msgs[msgNum]);
573:                        msgs[msgNum].setFlag(Flag.DELETED, true);
574:                    }
575:
576:                    return mailMessageStructsArray;
577:                } catch (Exception ex) {
578:                    log.error("Error when receiving email.", ex);
579:                } finally {
580:                    if (folder != null) {
581:                        try {
582:                            folder.close(true);
583:                        } catch (MessagingException e) {
584:                            log.error("Cannot close POP Folder.", e);
585:                        }
586:                    }
587:                    if (store != null) {
588:                        try {
589:                            store.close();
590:                        } catch (MessagingException e) {
591:                            log.error("Cannot close POP Store.", e);
592:                        }
593:                    }
594:                }
595:                return new MailMessageStruct[0];
596:            }
597:
598:            private static MailMessageStruct createMessageStructFromMessage(
599:                    Message message) throws MessagingException, IOException {
600:
601:                MailMessageStruct mailMessageStruct = new MailMessageStruct();
602:                String fromEmailString = null;
603:                Address[] from = message.getFrom();
604:                if (from != null) {
605:                    Address fromEmail = from[0];
606:                    fromEmailString = ((InternetAddress) fromEmail)
607:                            .getAddress();
608:                }
609:
610:                String subject = message.getSubject();
611:
612:                Part messagePart = message;
613:                Object content = messagePart.getContent();
614:
615:                // -- or its first body part if it is a multipart message --
616:                if (content instanceof  Multipart) {
617:                    messagePart = ((Multipart) content).getBodyPart(0);
618:                }
619:
620:                // -- Get the content type --
621:                String contentType = (String) messagePart.getContent();
622:
623:                mailMessageStruct.setFrom(fromEmailString);
624:                mailMessageStruct.setSubject(subject);
625:                mailMessageStruct.setMessage(contentType);
626:
627:                return mailMessageStruct;
628:            }
629:        }
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