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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.tools.ant.taskdefs.email;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.UnsupportedEncodingException;
import java.security.Provider;
import java.security.Security;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Properties;
import java.util.StringTokenizer;
import java.util.Vector;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.SendFailedException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
/**
* Uses the JavaMail classes to send Mime format email.
*
* @since Ant 1.5
*/
public class MimeMailer extends Mailer {
private static final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
private static final String GENERIC_ERROR =
"Problem while sending mime mail:";
/** Default character set */
private static final String DEFAULT_CHARSET
= System.getProperty("file.encoding");
// To work properly with national charsets we have to use
// implementation of interface javax.activation.DataSource
/**
* String data source implementation.
* @since Ant 1.6
*/
class StringDataSource implements javax.activation.DataSource {
private String data = null;
private String type = null;
private String charset = null;
private ByteArrayOutputStream out;
public InputStream getInputStream() throws IOException {
if (data == null && out == null) {
throw new IOException("No data");
}
if (out != null) {
final String encodedOut = out.toString(charset);
data = (data != null) ? data.concat(encodedOut) : encodedOut;
out = null;
}
return new ByteArrayInputStream(data.getBytes(charset));
}
public OutputStream getOutputStream() throws IOException {
out = (out == null) ? new ByteArrayOutputStream() : out;
return out;
}
public void setContentType(final String type) {
this.type = type.toLowerCase(Locale.ENGLISH);
}
public String getContentType() {
if (type != null && type.indexOf("charset") > 0
&& type.startsWith("text/")) {
return type;
}
// Must be like "text/plain; charset=windows-1251"
return new StringBuffer(type != null ? type : "text/plain").append(
"; charset=").append(charset).toString();
}
public String getName() {
return "StringDataSource";
}
public void setCharset(final String charset) {
this.charset = charset;
}
public String getCharset() {
return charset;
}
}
/**
* Send the email.
*
* @throws BuildException if the email can't be sent.
*/
public void send() {
try {
final Properties props = new Properties();
props.put("mail.smtp.host", host);
props.put("mail.smtp.port", String.valueOf(port));
// Aside, the JDK is clearly unaware of the Scottish
// 'session', which involves excessive quantities of
// alcohol :-)
Session sesh;
Authenticator auth = null;
if (SSL) {
try {
final Provider p = (Provider) Class.forName(
"com.sun.net.ssl.internal.ssl.Provider").newInstance();
Security.addProvider(p);
} catch (final Exception e) {
throw new BuildException("could not instantiate ssl "
+ "security provider, check that you have JSSE in "
+ "your classpath");
}
// SMTP provider
props.put("mail.smtp.socketFactory.class", SSL_FACTORY);
props.put("mail.smtp.socketFactory.fallback", "false");
props.put("mail.smtps.host", host);
if (isPortExplicitlySpecified()) {
props.put("mail.smtps.port", String.valueOf(port));
props.put("mail.smtp.socketFactory.port",
String.valueOf(port));
}
}
if (user != null || password != null) {
props.put("mail.smtp.auth", "true");
auth = new SimpleAuthenticator(user, password);
}
if (isStartTLSEnabled()) {
props.put("mail.smtp.starttls.enable", "true");
}
sesh = Session.getInstance(props, auth);
//create the message
final MimeMessage msg = new MimeMessage(sesh);
final MimeMultipart attachments = new MimeMultipart();
//set the sender
if (from.getName() == null) {
msg.setFrom(new InternetAddress(from.getAddress()));
} else {
msg.setFrom(new InternetAddress(from.getAddress(),
from.getName()));
}
// set the reply to addresses
msg.setReplyTo(internetAddresses(replyToList));
msg.setRecipients(Message.RecipientType.TO,
internetAddresses(toList));
msg.setRecipients(Message.RecipientType.CC,
internetAddresses(ccList));
msg.setRecipients(Message.RecipientType.BCC,
internetAddresses(bccList));
// Choosing character set of the mail message
// First: looking it from MimeType
String charset = parseCharSetFromMimeType(message.getMimeType());
if (charset != null) {
// Assign/reassign message charset from MimeType
message.setCharset(charset);
} else {
// Next: looking if charset having explicit definition
charset = message.getCharset();
if (charset == null) {
// Using default
charset = DEFAULT_CHARSET;
message.setCharset(charset);
}
}
// Using javax.activation.DataSource paradigm
final StringDataSource sds = new StringDataSource();
sds.setContentType(message.getMimeType());
sds.setCharset(charset);
if (subject != null) {
msg.setSubject(subject, charset);
}
msg.addHeader("Date", getDate());
if (headers != null) {
for (final Iterator iter = headers.iterator(); iter.hasNext();) {
final Header h = (Header) iter.next();
msg.addHeader(h.getName(), h.getValue());
}
}
final PrintStream out = new PrintStream(sds.getOutputStream());
message.print(out);
out.close();
final MimeBodyPart textbody = new MimeBodyPart();
textbody.setDataHandler(new DataHandler(sds));
attachments.addBodyPart(textbody);
final Enumeration e = files.elements();
while (e.hasMoreElements()) {
final File file = (File) e.nextElement();
MimeBodyPart body;
body = new MimeBodyPart();
if (!file.exists() || !file.canRead()) {
throw new BuildException("File \"" + file.getAbsolutePath()
+ "\" does not exist or is not "
+ "readable.");
}
final FileDataSource fileData = new FileDataSource(file);
final DataHandler fileDataHandler = new DataHandler(fileData);
body.setDataHandler(fileDataHandler);
body.setFileName(file.getName());
attachments.addBodyPart(body);
}
msg.setContent(attachments);
try {
// Send the message using SMTP, or SMTPS if the host uses SSL
final Transport transport = sesh.getTransport(SSL ? "smtps" : "smtp");
transport.connect(host, user, password);
transport.sendMessage(msg, msg.getAllRecipients());
} catch (final SendFailedException sfe) {
if (!shouldIgnoreInvalidRecipients()) {
throw new BuildException(GENERIC_ERROR, sfe);
} else if (sfe.getValidSentAddresses() == null
|| sfe.getValidSentAddresses().length == 0) {
throw new BuildException("Couldn't reach any recipient",
sfe);
}
Address[] invalid = sfe.getInvalidAddresses();
if (invalid == null) {
invalid = new Address[0];
}
for (Address address : invalid) {
didntReach(address, "invalid", sfe);
}
Address[] validUnsent = sfe.getValidUnsentAddresses();
if (validUnsent == null) {
validUnsent = new Address[0];
}
for (Address address : validUnsent) {
didntReach(address, "valid", sfe);
}
}
} catch (final MessagingException e) {
throw new BuildException(GENERIC_ERROR, e);
} catch (final IOException e) {
throw new BuildException(GENERIC_ERROR, e);
}
}
private static InternetAddress[] internetAddresses(final Vector list)
throws AddressException, UnsupportedEncodingException {
final List addrs = new ArrayList();
for (final EmailAddress addr : list) {
final String name = addr.getName();
addrs.add((name == null)
? new InternetAddress(addr.getAddress())
: new InternetAddress(addr.getAddress(), name));
}
return addrs.toArray(new InternetAddress[addrs.size()]);
}
private String parseCharSetFromMimeType(final String type) {
if (type == null) {
return null;
}
final int pos = type.indexOf("charset");
if (pos < 0) {
return null;
}
// Assuming mime type in form "text/XXXX; charset=XXXXXX"
final StringTokenizer token = new StringTokenizer(type.substring(pos), "=; ");
token.nextToken(); // Skip 'charset='
return token.nextToken();
}
private void didntReach(final Address addr, final String category,
final MessagingException ex) {
final String msg = "Failed to send mail to " + category + " address "
+ addr + " because of " + ex.getMessage();
if (task != null) {
task.log(msg, Project.MSG_WARN);
} else {
System.err.println(msg);
}
}
static class SimpleAuthenticator extends Authenticator {
private String user = null;
private String password = null;
public SimpleAuthenticator(final String user, final String password) {
this.user = user;
this.password = password;
}
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(user, password);
}
}
}
