io.tapack.satisfy.email.utils.EmailHelper Maven / Gradle / Ivy
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package io.tapack.satisfy.email.utils;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Properties;
import static io.tapack.satisfy.email.props.PropertyAccessor.*;
import static org.apache.commons.io.FileUtils.readFileToString;
public class EmailHelper {
private EmailHelper() {
}
private static final Logger LOGGER = LoggerFactory.getLogger(EmailHelper.class);
private static final String TEXT_MIME_TYPE = "text/*";
private static final String MULTIPART_MIME_TYPE = "multipart/*";
public static void sendPlainMessage(MessageBean messageBean, Properties properties) throws MessagingException {
sendMessage(messageBean, "plaintext", properties);
}
public static void sendFileMessage(String from, String subject, String fileName, Properties properties) throws MessagingException, IOException {
MessageBean messageBean = new MessageBean.Builder().from(from).to(getTestMailBoxLogin()).subject(subject).
content(readFileToStringByPathInResources(fileName)).build();
sendMessage(messageBean, FilenameUtils.getExtension(fileName), properties);
}
public static Folder getInboxFolder(Properties sessionProperties) throws MessagingException {
Session emailSession = Session.getInstance(sessionProperties);
Store emailStore = emailSession.getStore();
emailStore.connect(getTestMailBoxLogin(), getTestMailBoxPass());
return emailStore.getFolder("INBOX");
}
public static String readFileToStringByPathInResources(String filePath) throws IOException {
return readFileToString(new File(EmailHelper.class.getResource(filePath).getFile()), Charset.defaultCharset());
}
public static List getLettersThatMatchesParameters(String sender, String subject,
String body, Folder inbox) throws MessagingException, IOException {
List filteredMessages = Collections.emptyList();
try {
inbox.open(Folder.READ_ONLY);
filteredMessages = filterMessages(sender, subject, body, inbox);
} finally {
inbox.close(false);
inbox.getStore().close();
}
return filteredMessages;
}
private static void sendMessage(MessageBean msgBean, String mimeSubtype, Properties sendingProperties)
throws MessagingException {
Session session = Session.getInstance(sendingProperties);
MimeMessage msg = createMimeMessage(msgBean, mimeSubtype, session);
send(getTestSmtpLogin(), getTestSmtpPass(), msg, session.getTransport());
LOGGER.debug("Email was sent to: " + msgBean.getTo());
}
private static void send(String login, String password, MimeMessage msg, Transport sessionTransport) throws MessagingException {
try {
sessionTransport.connect(login, password);
sessionTransport.sendMessage(msg, msg.getAllRecipients());
} finally {
sessionTransport.close();
}
}
private static MimeMessage createMimeMessage(MessageBean msgBean, String mimeSubtype, Session session) throws MessagingException {
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(msgBean.getFrom()));
msg.setRecipient(Message.RecipientType.TO, new InternetAddress(msgBean.getTo()));
msg.setSubject(msgBean.getSubject());
msg.setText(msgBean.getContent(), Charset.defaultCharset().name(), mimeSubtype);
return msg;
}
private static MessageBean getPart(MimeMessage message)
throws MessagingException, IOException {
if (message.isMimeType(TEXT_MIME_TYPE)) {
return createMessageBeanFromMessage(message, IOUtils.toString(message.getInputStream(), Charset.defaultCharset()).trim(), null);
} else if (message.isMimeType(MULTIPART_MIME_TYPE)) {
return getMessageBeanFromMultiPartMsg(message);
} else {
throw new MessagingException();
}
}
private static MessageBean createMessageBeanFromMessage(Message message, String content, List attachments) throws MessagingException, IOException {
return new MessageBean.Builder()
.msgId(message.getMessageNumber())
.subject(MimeUtility.decodeText(message.getSubject()))
.from(message.getFrom()[0].toString())
.to("").dateSent("").setNew(false)
.content(content).attachments(attachments).build();
}
private static MessageBean getMessageBeanFromMultiPartMsg(Message message)
throws IOException, MessagingException {
ArrayList attachments = new ArrayList();
StringBuilder contentBuilder = new StringBuilder();
Multipart multipart = (Multipart) message.getContent();
for (int i = 0; i < multipart.getCount(); i++) {
Part part = multipart.getBodyPart(i);
if (isDispositionAttachmentOrInline(part.getDisposition())) {
attachments.add(saveToNewFile(part.getFileName(), part.getInputStream()));
} else {
contentBuilder.append(part.getContent().toString());
}
}
return createMessageBeanFromMessage(message, StringUtils.chomp(contentBuilder.toString()), attachments);
}
private static boolean isDispositionAttachmentOrInline(String disposition) {
return (StringUtils.isNotEmpty(disposition))
&& ((Part.ATTACHMENT.contentEquals(disposition) || Part.INLINE
.contentEquals(disposition)));
}
private static File saveToNewFile(String filename, InputStream inputStream) {
File file = null;
try {
file = File.createTempFile(filename,null);
FileUtils.copyInputStreamToFile(inputStream, file);
} catch (IOException e) {
LOGGER.error(e.getMessage());
}
return file;
}
private static List filterMessages(String sender, String subject, String body, Folder folder) throws MessagingException, IOException {
Message[] messages = folder.getMessages();
List filteredMessages = new ArrayList(messages.length);
for (Message message : messages) {
MessageBean beenMessage = getPart((MimeMessage) message);
LOGGER.debug("Email was received from: " + beenMessage.getFrom() + " with subject: " + beenMessage.getSubject());
if (checkSenderAndSubjectMatches(sender, subject, beenMessage) && checkBodyMatches(body, beenMessage)) {
filteredMessages.add(beenMessage);
}
}
return filteredMessages;
}
private static boolean checkBodyMatches(String body, MessageBean beenMessage) {
return transformNewLineCharsToLinuxStyle(beenMessage.getContent()).equals(transformNewLineCharsToLinuxStyle(body));
}
private static boolean checkSenderAndSubjectMatches(String sender, String subject, MessageBean beenMessage) {
return beenMessage.getFrom().equals(sender) && beenMessage.getSubject().equals(subject);
}
private static String transformNewLineCharsToLinuxStyle(String content) {
return content.replaceAll(IOUtils.LINE_SEPARATOR_WINDOWS, IOUtils.LINE_SEPARATOR_UNIX);
}
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