Java tutorial
/* MessageHandler.java Copyright (c) 2009 Juergen Schlierf, All Rights Reserved This file is part of Cubusmail (http://code.google.com/p/cubusmail/). This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with Cubusmail. If not, see <http://www.gnu.org/licenses/>. */ package com.cubusmail.mail; import java.io.IOException; import java.io.Serializable; import java.io.UnsupportedEncodingException; import java.text.NumberFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Locale; import javax.activation.DataSource; import javax.mail.Address; import javax.mail.Flags; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Session; import javax.mail.Transport; import javax.mail.Flags.Flag; import javax.mail.Message.RecipientType; import javax.mail.internet.ContentType; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimePart; import javax.mail.internet.MimeUtility; import javax.mail.util.ByteArrayDataSource; import org.apache.commons.lang.ArrayUtils; import org.apache.commons.lang.StringUtils; import org.apache.log4j.Logger; import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.context.NoSuchMessageException; import org.springframework.mail.javamail.MimeMessageHelper; import com.sun.mail.imap.IMAPFolder; import com.cubusmail.core.BeanFactory; import com.cubusmail.core.CubusConstants; import com.cubusmail.gwtui.client.model.GWTAddress; import com.cubusmail.gwtui.client.model.GWTAttachment; import com.cubusmail.gwtui.client.model.GWTMessage; import com.cubusmail.gwtui.domain.Identity; import com.cubusmail.gwtui.domain.Preferences; import com.cubusmail.gwtui.domain.UserAccount; import com.cubusmail.gwtui.server.services.ConvertUtil; import com.cubusmail.mail.text.MessageTextMode; import com.cubusmail.mail.text.MessageTextUtil; import com.cubusmail.mail.util.MessageUtils; import com.cubusmail.mail.util.MessageUtils.AddressStringType; /** * Wraps the java mail message and includes some mail operations. * * @author Juergen Schlierf */ public class MessageHandler implements Serializable, ApplicationContextAware { private Logger log = Logger.getLogger(getClass().getName()); private static final String[] PREVIEW_EXTENSIONS = new String[] { "jpg", "gif", "png" }; private static final String HEADER_NOTIFICATION = "Disposition-Notification-To"; private static final String HEADER_PRIORITY = "X-Priority"; private static final long serialVersionUID = -968726069586298205L; private Session session; private MimeMessage message; private String messageTextPlain = ""; private String messageTextHtml = ""; private String messageImageHtml = ""; private boolean htmlMessage; private boolean hasPlainText; private boolean hasImages; private boolean trustImages; private boolean readBefore; private List<DataSource> composeAttachments; private String charset; private String subjectEncoding; private ApplicationContext applicationContext; /** * */ private MessageHandler() { } /** * @param session * @return */ public static MessageHandler getInstance(Session session) { MessageHandler instance = (MessageHandler) BeanFactory.getBean("messageHandler"); instance.init(session); return instance; } public static MessageHandler getInstance(Session session, MimeMessage message) { MessageHandler instance = (MessageHandler) BeanFactory.getBean("messageHandler"); instance.init(session, message); return instance; } /** * @param session */ private void init(Session session) { init(session, new MimeMessage(session)); } /** * @param session * @param message */ private void init(Session session, MimeMessage message) { this.session = session; this.message = message; try { this.readBefore = this.message.isSet(Flag.SEEN); String contentType = message.getContentType(); ContentType type = new ContentType(contentType); String charset = type.getParameter("charset"); if (charset != null) { this.charset = charset; } else { // this.message.setHeader( name, value ) } } catch (MessagingException e) { log.warn(e.getMessage()); } } /** * @return * @throws MessagingException */ public String getSubject() throws MessagingException { // return this.message.getSubject(); String sub = this.message.getHeader("Subject", null); if (sub != null) { try { sub = MimeUtility.unfold(sub); sub = MimeUtility.decodeText(sub); } catch (UnsupportedEncodingException e) { log.error(e.getMessage()); } return sub; } return sub; } /** * @param subject * @throws MessagingException */ public void setSubject(String subject) throws MessagingException { try { this.message.setSubject(MimeUtility.encodeText(subject, this.charset, subjectEncoding), this.charset); } catch (UnsupportedEncodingException e) { log.error(e.getMessage(), e); this.message.setSubject(subject); } } /** * @param priority * @throws MessagingException */ public void setPrority(int priority) throws MessagingException { this.message.setHeader(HEADER_PRIORITY, Integer.toString(priority)); } /** * @param from * @throws MessagingException * @throws UnsupportedEncodingException */ public void setFrom(String from) throws MessagingException { if (from != null) { this.message.addFrom(MessageUtils.parseInternetAddress(from, this.charset)); } } /** * @param to * @throws MessagingException */ public void setTo(String to) throws MessagingException { setAddress(to, RecipientType.TO); } /** * @param cc * @throws MessagingException */ public void setCc(String cc) throws MessagingException { setAddress(cc, RecipientType.CC); } /** * @param bcc * @throws MessagingException */ public void setBcc(String bcc) throws MessagingException { setAddress(bcc, RecipientType.BCC); } /** * @param replyTo * @throws MessagingException */ public void setReplyTo(String replyTo) throws MessagingException { if (replyTo != null) { this.message.setReplyTo(MessageUtils.parseInternetAddress(replyTo, this.charset)); } } /** * @return * @throws MessagingException */ public String getFrom() throws MessagingException { return MessageUtils.getMailAdressString(this.message.getFrom(), AddressStringType.COMPLETE); } /** * @return * @throws MessagingException */ public String getTo() throws MessagingException { return MessageUtils.getMailAdressString(this.message.getRecipients(RecipientType.TO), AddressStringType.COMPLETE); } /** * @return * @throws MessagingException */ public String getCc() throws MessagingException { return MessageUtils.getMailAdressString(this.message.getRecipients(RecipientType.CC), AddressStringType.COMPLETE); } /** * @return * @throws MessagingException */ public String getBcc() throws MessagingException { return MessageUtils.getMailAdressString(this.message.getRecipients(RecipientType.BCC), AddressStringType.COMPLETE); } /** * @return * @throws MessagingException */ public InternetAddress[] getAllRecipients() throws MessagingException { Address[] addresses = this.message.getAllRecipients(); if (addresses != null) { InternetAddress[] internetAddresses = new InternetAddress[addresses.length]; for (int i = 0; i < addresses.length; i++) { internetAddresses[i] = (InternetAddress) addresses[i]; } return internetAddresses; } return null; } /** * @return * @throws MessagingException */ public String getReplyTo() throws MessagingException { Address[] addressArray = (Address[]) this.message.getReplyTo(); if (addressArray != null && addressArray.length > 0) { List<Address> replyTo = new ArrayList<Address>(); for (Address address : addressArray) { if (!MessageUtils.findEmailAddress(this.message.getFrom(), address)) { replyTo.add(address); } } return MessageUtils.getMailAdressString(replyTo.toArray(new InternetAddress[0]), AddressStringType.COMPLETE); } return null; } /** * @return * @throws MessagingException */ public GWTAddress[] getReplyToArray() throws MessagingException { Address[] addressArray = (Address[]) this.message.getReplyTo(); if (addressArray != null && addressArray.length > 0) { List<Address> replyTo = new ArrayList<Address>(); for (Address address : addressArray) { if (!MessageUtils.findEmailAddress(this.message.getFrom(), address)) { replyTo.add(address); } } return ConvertUtil.convertAddress(replyTo.toArray(new Address[0])); } return null; } /** * @param address * @param type * @throws MessagingException * @throws UnsupportedEncodingException */ private void setAddress(String address, RecipientType type) throws MessagingException { if (address != null) { this.message.setRecipients(type, MessageUtils.parseInternetAddress(address, this.charset)); } } /** * @param source */ public void addComposeAttachment(DataSource source) { if (this.composeAttachments == null) { this.composeAttachments = new ArrayList<DataSource>(); } this.composeAttachments.add(source); } /** * */ public void removeAllComposeAttachments() { if (this.composeAttachments != null) { this.composeAttachments.clear(); } } /** * @return Returns the attachments. */ public List<DataSource> getComposeAttachments() { return this.composeAttachments; } /** * @return Returns the htmlMessage. */ public boolean isHtmlMessage() { return this.htmlMessage; } /** * @param htmlMessage * The htmlMessage to set. */ public void setHtmlMessage(boolean htmlMessage) { this.htmlMessage = htmlMessage; } public void setMessageImageHtml(String messageImageHtml) { this.messageImageHtml = messageImageHtml; } /** * @return * @throws MessagingException */ public long getId() throws MessagingException { if (this.message.getFolder() != null) { IMAPFolder imapFolder = (IMAPFolder) this.message.getFolder(); return imapFolder.getUID(this.message); } return 0; } /** * @return * @throws MessagingException */ public Date getDate() throws MessagingException { return this.message.getSentDate(); } /** * @return * @throws MessagingException */ public int getSize() throws MessagingException { return this.message.getSize(); } /** * @return Returns the message. */ public Message getMessage() { return this.message; } /** * @return Returns the hasImages. */ public boolean isHasImages() { return this.hasImages; } /** * @param hasImages * The hasImages to set. */ public void setHasImages(boolean hasImages) { this.hasImages = hasImages; } /** * @return Returns the hasPlainText. */ public boolean isHasPlainText() { return this.hasPlainText; } /** * @param hasPlainText * The hasPlainText to set. */ public void setHasPlainText(boolean hasPlainText) { this.hasPlainText = hasPlainText; } /** * @return Returns the messageTextPlain. */ public String getMessageTextPlain() { return this.messageTextPlain; } /** * @param messageTextPlain * The messageTextPlain to set. */ public void setMessageTextPlain(String messageTextPlain) { this.messageTextPlain = messageTextPlain; } /** * @return Returns the messageTextHtml. */ public String getMessageTextHtml() { return this.messageTextHtml; } /** * @param messageTextHtml * The messageTextHtml to set. */ public void setMessageTextHtml(String messageTextHtml) { this.messageTextHtml = messageTextHtml; } /** * @return Returns the draftMessage. * @throws MessagingException */ public boolean isDraftMessage() throws MessagingException { return this.message.isSet(Flags.Flag.DRAFT); } /** * @param draftMessage * The draftMessage to set. * @throws MessagingException */ public void setDraftMessage(boolean draftMessage) throws MessagingException { this.message.setFlag(Flags.Flag.DRAFT, draftMessage); } public boolean isTrustImages() { return this.trustImages; } public void setTrustImages(boolean trustImages) { this.trustImages = trustImages; } /** * @return * @throws MessagingException */ public boolean isAcknowledgement() throws MessagingException { String[] notification = this.message.getHeader(HEADER_NOTIFICATION); if (notification != null && notification.length > 0) { return true; } else { return false; } } /** * @param ack * @throws MessagingException */ public void setAcknowledgement(boolean ack) throws MessagingException { if (ack) { try { this.message.setHeader(HEADER_NOTIFICATION, MimeUtility.encodeText(getFrom(), this.charset, this.subjectEncoding)); } catch (UnsupportedEncodingException e) { this.message.setHeader(HEADER_NOTIFICATION, getFrom()); } } else { this.message.removeHeader(HEADER_NOTIFICATION); } } /** * @param gwtMsg * @throws MessagingException * @throws IOException */ public void setGWTMessage(GWTMessage gwtMsg) throws MessagingException, IOException { UserAccount account = SessionManager.get().getUserAccount(); Identity identity = account.getIdentityById(gwtMsg.getIdentityId()); setFrom(identity.getInternetAddress()); if (!StringUtils.isEmpty(identity.getReplyTo())) { setReplyTo(identity.getReplyTo()); } setTo(gwtMsg.getTo()); setCc(gwtMsg.getCc()); setBcc(gwtMsg.getBcc()); setSubject(gwtMsg.getSubject()); if (gwtMsg.isHtmlMessage()) { setMessageTextHtml(gwtMsg.getMessageText()); } else { setMessageTextPlain(gwtMsg.getMessageText()); } setHtmlMessage(gwtMsg.isHtmlMessage()); setHasImages(gwtMsg.isHasImages()); setAcknowledgement(gwtMsg.isAcknowledgement()); setPrority(gwtMsg.getPriority()); setDraftMessage(gwtMsg.isDraft()); } /** * @return * @throws MessagingException * @throws IOException */ public GWTMessage getGWTMessage() throws MessagingException, IOException { GWTMessage gwtMsg = new GWTMessage(); gwtMsg.setFrom(getFrom()); gwtMsg.setFromArray(ConvertUtil.convertAddress(this.message.getFrom())); gwtMsg.setTo(getTo()); gwtMsg.setToArray(ConvertUtil.convertAddress(this.message.getRecipients(RecipientType.TO))); gwtMsg.setCc(getCc()); gwtMsg.setCcArray(ConvertUtil.convertAddress(this.message.getRecipients(RecipientType.CC))); gwtMsg.setBcc(getBcc()); gwtMsg.setReplyTo(getReplyTo()); gwtMsg.setReplyToArray(getReplyToArray()); gwtMsg.setSubject(getSubject()); gwtMsg.setDate(this.message.getSentDate()); if (isHtmlMessage()) { gwtMsg.setMessageText(getMessageTextHtml()); } else { gwtMsg.setMessageText(getMessageTextPlain()); } gwtMsg.setHtmlMessage(isHtmlMessage()); gwtMsg.setHasImages(isHasImages()); gwtMsg.setTrustImages(isTrustImages()); gwtMsg.setAcknowledgement(isAcknowledgement()); gwtMsg.setReadBefore(this.readBefore); gwtMsg.setRead(isRead()); gwtMsg.setDraft(isDraftMessage()); long id = getId(); gwtMsg.setId(id); List<MimePart> parts = MessageUtils.attachmentsFromPart(this.message); if (parts.size() > 0) { GWTAttachment[] attachments = new GWTAttachment[parts.size()]; for (int i = 0; i < parts.size(); i++) { attachments[i] = new GWTAttachment(); String fileName = parts.get(i).getFileName(); if (StringUtils.isEmpty(fileName)) { fileName = this.applicationContext.getMessage("message.unknown.attachment", null, SessionManager.get().getLocale()); } attachments[i].setFileName(fileName); int size = parts.get(i).getSize(); if (parts.get(i).getSize() == -1) { try { size = parts.get(i).getInputStream().available(); } catch (IOException e) { size = -1; } } NumberFormat sizeFormat = MessageUtils.createSizeFormat(SessionManager.get().getLocale()); size = MessageUtils.calculateAttachmentSize(size); attachments[i].setSize(size); attachments[i].setSizeText(MessageUtils.formatPartSize(attachments[i].getSize(), sizeFormat)); attachments[i].setMessageId(id); attachments[i].setIndex(i); String extension = StringUtils.substringAfterLast(parts.get(i).getFileName(), "."); if (extension != null) { extension = extension.toLowerCase(); if (ArrayUtils.contains(PREVIEW_EXTENSIONS, extension)) { attachments[i].setPreview(true); } } } gwtMsg.setAttachments(attachments); } return gwtMsg; } /** * @return Returns the attachments. */ public GWTAttachment[] getGWTComposeAttachments() { if (this.composeAttachments != null) { int index = 0; GWTAttachment[] gwtAttachments = new GWTAttachment[this.composeAttachments.size()]; for (DataSource attachment : this.composeAttachments) { gwtAttachments[index] = new GWTAttachment(); gwtAttachments[index].setFileName(attachment.getName()); int size = -1; try { size = attachment.getInputStream().available(); } catch (IOException e) { // do nothing } gwtAttachments[index].setSize(size); gwtAttachments[index].setSizeText(MessageUtils.formatPartSize(size, MessageUtils.createSizeFormat(SessionManager.get().getLocale()))); gwtAttachments[index].setMessageId(0); gwtAttachments[index].setIndex(index); String extension = StringUtils.substringAfterLast(attachment.getName(), "."); if (extension != null) { extension = extension.toLowerCase(); if (ArrayUtils.contains(PREVIEW_EXTENSIONS, extension)) { gwtAttachments[index].setPreview(true); } } index++; } return gwtAttachments; } return null; } /** * @throws MessagingException * @throws IOException */ public void send() throws MessagingException, IOException { buildBodyContent(); this.message.setHeader("X-Mailer", CubusConstants.APPLICATION_NAME); this.message.setSentDate(new Date()); Transport transport = this.session.getTransport(); if (!transport.isConnected()) { transport.connect(); } transport.sendMessage(this.message, this.message.getAllRecipients()); transport.close(); } /** * @param folder * @throws MessagingException * @throws IOException */ public void saveToFolder(IMailFolder folder, boolean draft) throws MessagingException, IOException { if (draft) { buildBodyContent(); this.message.setSentDate(new Date()); } Message[] msgs = new Message[1]; msgs[0] = this.message; folder.appendMessages(msgs); } /** * @param msg * @throws MessagingException * @throws IOException */ public void createReplyMessage(Message msg, boolean replyAll) throws MessagingException, IOException { init(); this.message = (MimeMessage) msg.reply(replyAll); Preferences prefs = SessionManager.get().getPreferences(); MessageTextUtil.messageTextFromPart(msg, this, true, MessageTextMode.REPLY, prefs, 0); addReplyInfo(msg); } /** * @param msg * @throws MessagingException * @throws IOException */ public void createForwardMessage(Message msg) throws MessagingException, IOException { init(); setSubject("Fwd: " + msg.getSubject()); setHtmlMessage(MessageUtils.isHtmlMessage(msg)); List<MimePart> attachments = MessageUtils.attachmentsFromPart(msg); if (attachments != null) { for (MimePart part : attachments) { DataSource source = part.getDataHandler().getDataSource(); ByteArrayDataSource newSource = new ByteArrayDataSource(source.getInputStream(), source.getContentType()); if (StringUtils.isEmpty(source.getName())) { newSource.setName(this.applicationContext.getMessage("message.unknown.attachment", null, SessionManager.get().getLocale())); } else { newSource.setName(source.getName()); } addComposeAttachment(newSource); } } Preferences prefs = SessionManager.get().getPreferences(); MessageTextUtil.messageTextFromPart(msg, this, true, MessageTextMode.REPLY, prefs, 0); } /** * @throws MessagingException * @throws IOException */ private void buildBodyContent() throws MessagingException, IOException { boolean hasAttachments = (this.composeAttachments != null && this.composeAttachments.size() > 0); boolean multipart = hasAttachments || isHtmlMessage(); MimeMessageHelper messageHelper = new MimeMessageHelper(this.message, multipart); if (isHtmlMessage()) { String plainText = MessageTextUtil.convertHtml2PlainText(this.messageTextHtml); messageHelper.setText(plainText, this.messageTextHtml); } else { messageHelper.setText(this.messageTextPlain, false); } if (hasAttachments) { for (DataSource attachment : this.composeAttachments) { messageHelper.addAttachment(attachment.getName(), attachment); } } if (!isRead()) { this.message.setFlag(Flags.Flag.SEEN, true); } } /** * @param loadImages * @throws MessagingException * @throws IOException */ public void readBodyContent(boolean loadImages, MessageTextMode mode) throws MessagingException, IOException { init(); Preferences prefs = SessionManager.get().getPreferences(); MessageTextUtil.messageTextFromPart(this.message, this, loadImages, mode, prefs, 0); if (StringUtils.isEmpty(this.messageTextPlain) && StringUtils.isEmpty(this.messageTextHtml)) { if (!StringUtils.isEmpty(this.messageImageHtml) && prefs.isShowHtml()) { this.messageTextHtml = this.messageImageHtml; setHtmlMessage(true); setTrustImages(true); setHasImages(true); } } if (!isRead()) { this.message.setFlag(Flags.Flag.SEEN, true); } } /** * @return * @throws MessagingException */ private boolean isRead() throws MessagingException { return this.message.isSet(Flags.Flag.SEEN); } /** * @throws NoSuchMessageException * @throws MessagingException */ private void addReplyInfo(Message originalMessage) throws NoSuchMessageException, MessagingException { String fromString = MessageUtils.getMailAdressString(originalMessage.getFrom(), AddressStringType.COMPLETE); Locale locale = SessionManager.get().getLocale(); String[] args = new String[] { fromString }; String informationText = this.applicationContext.getMessage("message.reply.information.text.withoutDate", args, locale); if (!StringUtils.isEmpty(this.messageTextPlain)) { this.messageTextPlain = informationText + "\n\n" + this.messageTextPlain; } if (!StringUtils.isEmpty(this.messageTextHtml)) { this.messageTextHtml = "<p>" + informationText + "</p>" + this.messageTextHtml; } } public void setCharset(String charset) { this.charset = charset; } public void setSubjectEncoding(String subjectEncoding) { this.subjectEncoding = subjectEncoding; } public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { this.applicationContext = applicationContext; } private void init() { this.messageImageHtml = ""; this.messageTextHtml = ""; this.messageTextPlain = ""; this.htmlMessage = false; this.hasPlainText = false; this.hasImages = false; this.trustImages = false; this.readBefore = false; } }