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- /*
- * Copyright 2011 gitblit.com.
- *
- * Licensed 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 com.gitblit.service;
-
- import java.io.File;
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.Date;
- import java.util.List;
- import java.util.Properties;
- import java.util.Queue;
- import java.util.UUID;
- import java.util.concurrent.ConcurrentLinkedQueue;
- import java.util.regex.Pattern;
-
- import javax.activation.DataHandler;
- import javax.activation.FileDataSource;
- 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.InternetAddress;
- import javax.mail.internet.MimeBodyPart;
- import javax.mail.internet.MimeMessage;
- import javax.mail.internet.MimeMultipart;
- import javax.mail.internet.MimeUtility;
-
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
-
- import com.gitblit.IStoredSettings;
- import com.gitblit.Keys;
- import com.gitblit.models.Mailing;
- import com.gitblit.utils.StringUtils;
-
- /**
- * The mail service handles sending email messages asynchronously from a queue.
- *
- * @author James Moger
- *
- */
- public class MailService implements Runnable {
-
- private final Logger logger = LoggerFactory.getLogger(MailService.class);
-
- private final Queue<Message> queue = new ConcurrentLinkedQueue<Message>();
-
- private final Session session;
-
- private final IStoredSettings settings;
-
- public MailService(IStoredSettings settings) {
- this.settings = settings;
-
- final String mailUser = settings.getString(Keys.mail.username, null);
- final String mailPassword = settings.getString(Keys.mail.password, null);
- final boolean smtps = settings.getBoolean(Keys.mail.smtps, false);
- final boolean starttls = settings.getBoolean(Keys.mail.starttls, false);
- boolean authenticate = !StringUtils.isEmpty(mailUser) && !StringUtils.isEmpty(mailPassword);
- String server = settings.getString(Keys.mail.server, "");
- if (StringUtils.isEmpty(server)) {
- session = null;
- return;
- }
- int port = settings.getInteger(Keys.mail.port, 25);
- boolean isGMail = false;
- if (server.equals("smtp.gmail.com")) {
- port = 465;
- isGMail = true;
- }
-
- Properties props = new Properties();
- props.setProperty("mail.smtp.host", server);
- props.setProperty("mail.smtp.port", String.valueOf(port));
- props.setProperty("mail.smtp.auth", String.valueOf(authenticate));
- props.setProperty("mail.smtp.auths", String.valueOf(authenticate));
- props.setProperty("mail.smtp.starttls.enable", String.valueOf(starttls));
-
- if (isGMail || smtps) {
- props.setProperty("mail.smtp.starttls.enable", "true");
- props.put("mail.smtp.socketFactory.port", String.valueOf(port));
- props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
- props.put("mail.smtp.socketFactory.fallback", "false");
- }
-
- if (!StringUtils.isEmpty(mailUser) && !StringUtils.isEmpty(mailPassword)) {
- // SMTP requires authentication
- session = Session.getInstance(props, new Authenticator() {
- @Override
- protected PasswordAuthentication getPasswordAuthentication() {
- PasswordAuthentication passwordAuthentication = new PasswordAuthentication(
- mailUser, mailPassword);
- return passwordAuthentication;
- }
- });
- } else {
- // SMTP does not require authentication
- session = Session.getInstance(props);
- }
- }
-
- /**
- * Indicates if the mail executor can send emails.
- *
- * @return true if the mail executor is ready to send emails
- */
- public boolean isReady() {
- return session != null;
- }
-
- /**
- * Create a message.
- *
- * @param mailing
- * @return a message
- */
- public Message createMessage(Mailing mailing) {
- if (mailing.subject == null) {
- mailing.subject = "";
- }
-
- if (mailing.content == null) {
- mailing.content = "";
- }
-
- Message message = new MailMessageImpl(session, mailing.id);
- try {
- String fromAddress = settings.getString(Keys.mail.fromAddress, null);
- if (StringUtils.isEmpty(fromAddress)) {
- fromAddress = "gitblit@gitblit.com";
- }
- InternetAddress from = new InternetAddress(fromAddress, mailing.from == null ? "Gitblit" : mailing.from,"utf-8");
- message.setFrom(from);
-
- Pattern validEmail = Pattern
- .compile("^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$");
-
- // validate & add TO recipients
- List<InternetAddress> to = new ArrayList<InternetAddress>();
- for (String address : mailing.toAddresses) {
- if (StringUtils.isEmpty(address)) {
- continue;
- }
- if (validEmail.matcher(address).find()) {
- try {
- to.add(new InternetAddress(address));
- } catch (Throwable t) {
- }
- }
- }
-
- // validate & add CC recipients
- List<InternetAddress> cc = new ArrayList<InternetAddress>();
- for (String address : mailing.ccAddresses) {
- if (StringUtils.isEmpty(address)) {
- continue;
- }
- if (validEmail.matcher(address).find()) {
- try {
- cc.add(new InternetAddress(address));
- } catch (Throwable t) {
- }
- }
- }
-
- if (settings.getBoolean(Keys.web.showEmailAddresses, true)) {
- // full disclosure of recipients
- if (to.size() > 0) {
- message.setRecipients(Message.RecipientType.TO,
- to.toArray(new InternetAddress[to.size()]));
- }
- if (cc.size() > 0) {
- message.setRecipients(Message.RecipientType.CC,
- cc.toArray(new InternetAddress[cc.size()]));
- }
- } else {
- // everyone is bcc'd
- List<InternetAddress> bcc = new ArrayList<InternetAddress>();
- bcc.addAll(to);
- bcc.addAll(cc);
- message.setRecipients(Message.RecipientType.BCC,
- bcc.toArray(new InternetAddress[bcc.size()]));
- }
-
- message.setSentDate(new Date());
- // UTF-8 encode
- message.setSubject(MimeUtility.encodeText(mailing.subject, "utf-8", "B"));
-
- MimeBodyPart messagePart = new MimeBodyPart();
- messagePart.setText(mailing.content, "utf-8");
- //messagePart.setHeader("Content-Transfer-Encoding", "quoted-printable");
-
- if (Mailing.Type.html == mailing.type) {
- messagePart.setHeader("Content-Type", "text/html; charset=\"utf-8\"");
- } else {
- messagePart.setHeader("Content-Type", "text/plain; charset=\"utf-8\"");
- }
-
- MimeMultipart multiPart = new MimeMultipart();
- multiPart.addBodyPart(messagePart);
-
- // handle attachments
- if (mailing.hasAttachments()) {
- for (File file : mailing.attachments) {
- if (file.exists()) {
- MimeBodyPart filePart = new MimeBodyPart();
- FileDataSource fds = new FileDataSource(file);
- filePart.setDataHandler(new DataHandler(fds));
- filePart.setFileName(fds.getName());
- multiPart.addBodyPart(filePart);
- }
- }
- }
-
- message.setContent(multiPart);
-
- } catch (Exception e) {
- logger.error("Failed to properly create message", e);
- }
- return message;
- }
-
- /**
- * Returns the status of the mail queue.
- *
- * @return true, if the queue is empty
- */
- public boolean hasEmptyQueue() {
- return queue.isEmpty();
- }
-
- /**
- * Queue's an email message to be sent.
- *
- * @param message
- * @return true if the message was queued
- */
- public boolean queue(Message message) {
- if (!isReady()) {
- return false;
- }
- try {
- message.saveChanges();
- } catch (Throwable t) {
- logger.error("Failed to save changes to message!", t);
- }
- queue.add(message);
- return true;
- }
-
- @Override
- public void run() {
- if (!queue.isEmpty()) {
- if (session != null) {
- // send message via mail server
- List<Message> failures = new ArrayList<Message>();
- Message message = null;
- while ((message = queue.poll()) != null) {
- try {
- if (settings.getBoolean(Keys.mail.debug, false)) {
- logger.info("send: '" + StringUtils.trimString(message.getSubject(), 60)
- + "' to:" + StringUtils.trimString(Arrays.toString(message.getAllRecipients()), 300));
- }
- Transport.send(message);
- } catch (SendFailedException sfe) {
- if (settings.getBoolean(Keys.mail.debug, false)) {
- logger.error("Failed to send message: {}", sfe.getMessage());
- logger.info(" Invalid addresses: {}", Arrays.toString(sfe.getInvalidAddresses()));
- logger.info(" Valid sent addresses: {}", Arrays.toString(sfe.getValidSentAddresses()));
- logger.info(" Valid unset addresses: {}", Arrays.toString(sfe.getValidUnsentAddresses()));
- logger.info("", sfe);
- }
- else {
- logger.error("Failed to send message: {}", sfe.getMessage(), sfe.getNextException());
- }
- failures.add(message);
- } catch (Throwable e) {
- logger.error("Failed to send message", e);
- failures.add(message);
- }
- }
-
- // push the failures back onto the queue for the next cycle
- queue.addAll(failures);
- }
- }
- }
-
- public void sendNow(Message message) throws Exception {
- Transport.send(message);
- }
-
- private static class MailMessageImpl extends MimeMessage {
-
- final String id;
-
- MailMessageImpl(Session session, String id) {
- super(session);
- this.id = id;
- }
-
- @Override
- protected void updateMessageID() throws MessagingException {
- if (!StringUtils.isEmpty(id)) {
- String hostname = "gitblit.com";
- String refid = "<" + id + "@" + hostname + ">";
- String mid = "<" + UUID.randomUUID().toString() + "@" + hostname + ">";
- setHeader("References", refid);
- setHeader("In-Reply-To", refid);
- setHeader("Message-Id", mid);
- }
- }
- }
- }
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