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/*
* Copyright (C) 2008-2020, Juick
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.juick;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.juick.model.Message;
import com.juick.model.User;
import com.juick.www.api.SystemActivity;
import com.juick.util.HttpBadRequestException;
import com.juick.www.WebApp;
import com.juick.service.EmailService;
import com.juick.service.MessagesService;
import com.juick.service.UserService;
import com.juick.service.component.*;
import com.juick.util.MessageUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.event.EventListener;
import org.springframework.scheduling.annotation.Async;
import javax.annotation.Nonnull;
import javax.inject.Inject;
import javax.mail.MessagingException;
import javax.mail.Multipart;
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 java.util.*;
import static com.juick.util.formatters.PlainTextFormatter.formatPost;
import static com.juick.util.formatters.PlainTextFormatter.formatUrl;
public class EmailManager implements NotificationListener {
public static final String MSGID_PATTERN = "\\.|@|<";
private static final Logger logger = LoggerFactory.getLogger(EmailManager.class);
@Inject
private EmailService emailService;
@Inject
private MessagesService messagesService;
@Inject
private UserService userService;
@Inject
private ObjectMapper jsonMapper;
@Inject
private WebApp webApp;
@Value("${service_email:}")
private String serviceEmail;
@Override
public void processSystemEvent(@Nonnull SystemEvent systemEvent) {
var activity = systemEvent.getActivity();
var msg = activity.getMessage();
var subscribers = activity.getTo();
if (activity.getType().equals(SystemActivity.ActivityType.message)) {
processMessage(msg, subscribers);
}
try {
var eventHeader = Collections.singletonMap("X-Event-Version", "1.0");
sendEmail("noreply@juick.com", serviceEmail, "New system event",
jsonMapper.writeValueAsString(systemEvent.getActivity()), null, eventHeader);
} catch (JsonProcessingException e) {
logger.warn("JSON exception", e);
}
}
private void processMessage(Message msg, List<User> subscribedUsers) {
if (msg.isService()) {
return;
}
if (MessageUtils.isPM(msg)) {
String subject = String.format("Private message from %s", msg.getUser().getName());
emailService.getEmails(msg.getTo().getUid(), true).forEach(email -> emailNotify(email, subject, msg));
} else if (MessageUtils.isReply(msg)) {
Message originalMessage = messagesService.getMessage(msg.getMid()).orElseThrow(IllegalStateException::new);
String subject = String.format("New reply to %s", originalMessage.getUser().getName());
subscribedUsers.stream()
.flatMap(user -> emailService.getEmails(user.getUid(), true).stream())
.forEach(email -> emailNotify(email, subject, msg));
} else {
String subject = String.format("New message from %s", msg.getUser().getName());
subscribedUsers
.forEach(user -> emailService.getEmails(user.getUid(), true)
.forEach(email -> emailNotify(email, subject, msg)));
}
}
@Override
public void processPingEvent(PingEvent pingEvent) {
}
@Async
@EventListener
public void processMailVerificationEvent(MailVerificationEvent mailVerificationEvent) {
if (!sendEmail("noreply@juick.com", mailVerificationEvent.getEmail(), "Juick authorization link",
String.format("Follow link to attach this email to Juick account:\n" +
"http://juick.com/settings?page=auth-email&code=%s\n\n" +
"If you don't know, what this mean - just ignore this mail.\n", mailVerificationEvent.getCode()),
StringUtils.EMPTY, Collections.emptyMap())) {
throw new HttpBadRequestException();
}
}
@Async
@EventListener
public void processAccountVerificationEvent(AccountVerificationEvent accountVerificationEvent) {
String signupUrl = String.format("Follow this link to create Juick account: https://juick.com/signup?type=email&hash=%s", accountVerificationEvent.getCode());
sendEmail("noreply@juick.com", accountVerificationEvent.getEmail(), "Juick registration", signupUrl, StringUtils.EMPTY, Collections.emptyMap());
}
private void emailNotify(String email, String subject, Message msg) {
Map<String, String> headers = new HashMap<>();
if (!MessageUtils.isPM(msg)) {
headers.put("Message-ID", String.format("<%d.%d@juick.com>", msg.getMid(), msg.getRid()));
}
if (MessageUtils.isReply(msg)) {
if (msg.getReplyto() > 0) {
Message replyto = messagesService.getReply(msg.getMid(), msg.getReplyto());
headers.put("In-Reply-To", String.format("<%d.%d@juick.com>", replyto.getMid(), replyto.getRid()));
} else {
Message original = messagesService.getMessage(msg.getMid()).orElseThrow(IllegalStateException::new);
headers.put("In-Reply-To", String.format("<%d.%d@juick.com>", original.getMid(), original.getRid()));
}
}
String plainText = webApp.renderPlaintext(formatPost(msg), formatUrl(msg)).orElseThrow(IllegalStateException::new);
String hash = userService.getHashByUID(userService.getUserByEmail(email).getUid());
String htmlText = webApp.renderHtml(MessageUtils.formatHtml(msg), formatUrl(msg), msg, hash).orElseThrow(IllegalStateException::new);
sendEmail(StringUtils.EMPTY, email, subject, plainText, htmlText, headers);
}
public boolean sendEmail(String from, String to, String subject, String textPart, String htmlPart, Map<String, String> messageHeaders) {
Properties prop = System.getProperties();
prop.put("mail.smtp.starttls.enable", "true");
Session session = Session.getDefaultInstance(prop);
try {
Transport transport = session.getTransport("smtp");
MimeMessage message = new MimeMessage(session) {
protected void updateMessageID() throws MessagingException {
for (Map.Entry<String, String> entry: messageHeaders.entrySet()) {
setHeader(entry.getKey(), entry.getValue());
}
}
};
String fromAddress = StringUtils.isNotEmpty(from) ? from : "juick@juick.com";
message.setFrom(fromAddress);
message.addRecipient(javax.mail.Message.RecipientType.TO, new InternetAddress(to));
message.setSubject(subject);
MimeBodyPart textBodyPart = new MimeBodyPart();
textBodyPart.setContent(textPart, "text/plain; charset=UTF-8");
Multipart multipart = new MimeMultipart("alternative");
multipart.addBodyPart(textBodyPart);
if (StringUtils.isNotBlank(htmlPart)) {
MimeBodyPart htmlBodyPart = new MimeBodyPart();
htmlBodyPart.setContent(htmlPart, "text/html; charset=UTF-8");
multipart.addBodyPart(htmlBodyPart);
}
message.setContent(multipart);
User emailUser = userService.getUserByEmail(to);
if (!emailUser.isAnonymous()) {
message.setHeader("List-Id", "<mail-notifications.juick.com>");
message.setHeader("List-Unsubscribe","<mailto:unsubscribe@juick.com>");
message.setHeader("Feedback-ID", String.format("%d:juick", emailUser.getUid()));
message.setHeader("Precedence", "bulk");
}
message.saveChanges();
transport.connect();
transport.sendMessage(message, message.getAllRecipients());
return true;
} catch (MessagingException ex) {
logger.error("mail exception", ex);
return false;
}
}
}
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