Java tutorial
/*! * * This program is free software; you can redistribute it and/or modify it under the * terms of the GNU General Public License, version 2 as published by the Free Software * Foundation. * * You should have received a copy of the GNU General Public License along with this * program; if not, you can obtain a copy at http://www.gnu.org/licenses/gpl-2.0.html * or from the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * This program 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 General Public License for more details. * * * Copyright (c) 2002-2018 Hitachi Vantara. All rights reserved. * */ package org.pentaho.platform.util; import org.apache.commons.lang.ObjectUtils; import org.apache.commons.lang.StringUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.pentaho.platform.api.email.IEmailService; import org.pentaho.platform.engine.core.system.PentahoSessionHolder; import org.pentaho.platform.engine.core.system.PentahoSystem; import org.pentaho.platform.util.messages.LocaleHelper; import org.pentaho.platform.util.messages.Messages; import javax.activation.DataHandler; import javax.mail.AuthenticationFailedException; import javax.mail.Authenticator; import javax.mail.BodyPart; import javax.mail.Message; import javax.mail.Multipart; import javax.mail.PasswordAuthentication; import javax.mail.SendFailedException; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeBodyPart; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimeMultipart; import javax.mail.internet.MimeUtility; import javax.mail.util.ByteArrayDataSource; import java.io.InputStream; import java.util.Date; import java.util.Properties; public class Emailer { private static final Log logger = LogFactory.getLog(Emailer.class); private static final String MAILER = "smtpsend"; //$NON-NLS-1$ private static final String EMBEDDED_HTML = "mime-message/text/html"; private Properties props = new Properties(); private InputStream attachment = null; private String attachmentName = null; private String attachmentMimeType = null; private Authenticator authenticator = null; public Emailer() { } public void setTo(String to) { if (to != null && !"".equals(to)) { to = to.replaceAll(";", ","); props.put("to", to); } } public void setCc(String cc) { if (cc != null && !"".equals(cc)) { cc = cc.replaceAll(";", ","); props.put("cc", cc); } } public void setBcc(String bcc) { if (bcc != null && !"".equals(bcc)) { bcc = bcc.replaceAll(";", ","); props.put("bcc", bcc); } } public void setSubject(String subject) { props.put("subject", cleanEmailField(subject)); } public String getSubject() { return props.getProperty("subject"); } public void setFrom(String from) { props.put("mail.from.default", from); } public void setFromName(String fromName) { props.put("mail.from.name", fromName); } public void setUseAuthentication(boolean useAuthentication) { props.put("mail.smtp.auth", ObjectUtils.toString(useAuthentication)); } public void setSmtpHost(String smtpHost) { props.put("mail.smtp.host", smtpHost); } public void setSmtpPort(int port) { props.put("mail.smtp.port", ObjectUtils.toString(port)); } public void setTransportProtocol(String protocol) { props.put("mail.transport.protocol", protocol); } public void setUseSSL(boolean useSSL) { props.put("mail.smtp.ssl", ObjectUtils.toString(useSSL)); } public void setStartTLS(boolean startTLS) { props.put("mail.smtp.starttls.enable", ObjectUtils.toString(startTLS)); } public void setQuitWait(boolean quitWait) { props.put("mail.smtp.quitwait", ObjectUtils.toString(quitWait)); } public void setAttachment(InputStream attachment) { this.attachment = attachment; } public void setAttachmentName(String attachmentName) { this.attachmentName = attachmentName; } public String getAttachmentName() { return attachmentName; } public void setAttachmentMimeType(String mimeType) { this.attachmentMimeType = mimeType; } public Authenticator getAuthenticator() { return authenticator; } public void setAuthenticator(Authenticator authenticator) { this.authenticator = authenticator; } public void setBody(String body) { props.put("body", body); } public String getEmailFromName() { return Messages.getInstance().getString("emailFromName"); //$NON-NLS-1$ } public Properties getProperties() { return props; } public boolean setup() { try { final IEmailService service = PentahoSystem.get(IEmailService.class, "IEmailService", PentahoSessionHolder.getSession()); props.put("mail.smtp.host", service.getEmailConfig().getSmtpHost()); props.put("mail.smtp.port", ObjectUtils.toString(service.getEmailConfig().getSmtpPort())); props.put("mail.transport.protocol", service.getEmailConfig().getSmtpProtocol()); props.put("mail.smtp.starttls.enable", ObjectUtils.toString(service.getEmailConfig().isUseStartTls())); props.put("mail.smtp.auth", ObjectUtils.toString(service.getEmailConfig().isAuthenticate())); props.put("mail.smtp.ssl", ObjectUtils.toString(service.getEmailConfig().isUseSsl())); props.put("mail.smtp.quitwait", ObjectUtils.toString(service.getEmailConfig().isSmtpQuitWait())); props.put("mail.from.default", service.getEmailConfig().getDefaultFrom()); String fromName = service.getEmailConfig().getFromName(); if (StringUtils.isEmpty(fromName)) { fromName = getEmailFromName(); } props.put("mail.from.name", fromName); props.put("mail.debug", ObjectUtils.toString(service.getEmailConfig().isDebug())); if (service.getEmailConfig().isAuthenticate()) { props.put("mail.userid", service.getEmailConfig().getUserId()); props.put("mail.password", service.getEmailConfig().getPassword()); setAuthenticator(new Authenticator() { protected PasswordAuthentication getPasswordAuthentication() { String decrypted; try { Base64PasswordService ps = new Base64PasswordService(); String pass = service.getEmailConfig().getPassword(); if (pass.startsWith("ENC:")) { decrypted = ps.decrypt( service.getEmailConfig().getPassword().substring(4, pass.length())); } else { decrypted = ps.decrypt(service.getEmailConfig().getPassword()); } } catch (Exception e) { decrypted = service.getEmailConfig().getPassword(); } return new PasswordAuthentication(service.getEmailConfig().getUserId(), decrypted); } }); } return true; } catch (Exception e) { logger.error("Email.ERROR_0013_CONFIG_FILE_INVALID", e); //$NON-NLS-1$ } return false; } private String cleanEmailField(String emailField) { if (emailField != null) { // Remove CR symbols - email header injection emailField = emailField.replaceAll("\r", ""); return emailField.replaceAll("\n", ""); } else { return null; } } public boolean send() { String from = props.getProperty("mail.from.default"); String fromName = props.getProperty("mail.from.name"); String to = props.getProperty("to"); String cc = props.getProperty("cc"); String bcc = props.getProperty("bcc"); boolean authenticate = "true".equalsIgnoreCase(props.getProperty("mail.smtp.auth")); String subject = props.getProperty("subject"); String body = props.getProperty("body"); logger.info("Going to send an email to " + to + " from " + from + " with the subject '" + subject + "' and the body " + body); try { // Get a Session object Session session; if (authenticate) { session = Session.getInstance(props, authenticator); } else { session = Session.getInstance(props); } // if debugging is not set in the email config file, then default to false if (!props.containsKey("mail.debug")) { //$NON-NLS-1$ session.setDebug(false); } final MimeMessage msg; if (EMBEDDED_HTML.equals(attachmentMimeType)) { //Message is ready msg = new MimeMessage(session, attachment); if (body != null) { //We need to add message to the top of the email body final MimeMultipart oldMultipart = (MimeMultipart) msg.getContent(); final MimeMultipart newMultipart = new MimeMultipart("related"); for (int i = 0; i < oldMultipart.getCount(); i++) { BodyPart bodyPart = oldMultipart.getBodyPart(i); final Object content = bodyPart.getContent(); //Main HTML body if (content instanceof String) { final String newContent = body + "<br/><br/>" + content; final MimeBodyPart part = new MimeBodyPart(); part.setText(newContent, "UTF-8", "html"); newMultipart.addBodyPart(part); } else { //CID attachments newMultipart.addBodyPart(bodyPart); } } msg.setContent(newMultipart); } } else { // construct the message msg = new MimeMessage(session); Multipart multipart = new MimeMultipart(); if (attachment == null) { logger.error("Email.ERROR_0015_ATTACHMENT_FAILED"); //$NON-NLS-1$ return false; } ByteArrayDataSource dataSource = new ByteArrayDataSource(attachment, attachmentMimeType); if (body != null) { MimeBodyPart bodyMessagePart = new MimeBodyPart(); bodyMessagePart.setText(body, LocaleHelper.getSystemEncoding()); multipart.addBodyPart(bodyMessagePart); } // attach the file to the message MimeBodyPart attachmentBodyPart = new MimeBodyPart(); attachmentBodyPart.setDataHandler(new DataHandler(dataSource)); attachmentBodyPart.setFileName(MimeUtility.encodeText(attachmentName, "UTF-8", null)); multipart.addBodyPart(attachmentBodyPart); // add the Multipart to the message msg.setContent(multipart); } if (from != null) { msg.setFrom(new InternetAddress(from, fromName)); } else { // There should be no way to get here logger.error("Email.ERROR_0012_FROM_NOT_DEFINED"); //$NON-NLS-1$ } if ((to != null) && (to.trim().length() > 0)) { msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to, false)); } if ((cc != null) && (cc.trim().length() > 0)) { msg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(cc, false)); } if ((bcc != null) && (bcc.trim().length() > 0)) { msg.setRecipients(Message.RecipientType.BCC, InternetAddress.parse(bcc, false)); } if (subject != null) { msg.setSubject(subject, LocaleHelper.getSystemEncoding()); } msg.setHeader("X-Mailer", Emailer.MAILER); //$NON-NLS-1$ msg.setSentDate(new Date()); Transport.send(msg); return true; } catch (SendFailedException e) { logger.error("Email.ERROR_0011_SEND_FAILED -" + to, e); //$NON-NLS-1$ } catch (AuthenticationFailedException e) { logger.error("Email.ERROR_0014_AUTHENTICATION_FAILED - " + to, e); //$NON-NLS-1$ } catch (Throwable e) { logger.error("Email.ERROR_0011_SEND_FAILED - " + to, e); //$NON-NLS-1$ } return false; } }