D-Net

package eu.dnetlib.uoaadmintoolslibrary.emailSender;

import org.apache.log4j.Logger;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.beans.factory.annotation.Configurable;

import org.springframework.stereotype.Service;

import javax.mail.*;

import javax.mail.internet.AddressException;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import java.util.List;

import java.util.Properties;

import eu.dnetlib.uoaadmintoolslibrary.configuration.properties.MailConfig;

@Service

@Configurable

public class EmailSender {

    private static final Logger logger = Logger.getLogger(EmailSender.class);

    @Autowired

    private MailConfig mailConfig;

    public boolean send(List<String> recipients, String subject, String body, Boolean bcc) {

        // Get system properties

        Properties properties = System.getProperties();

        properties.setProperty("mail.smtp.host", mailConfig.getHost());

        properties.put("mail.smtp.port", mailConfig.getPort());

        properties.put("mail.smtp.auth", mailConfig.getAuth()); //enable authentication

        properties.put("mail.smtp.starttls.enable", "true");

        if(mailConfig.getSslProtocols() != null) {

            properties.put("mail.smtp.ssl.protocols", mailConfig.getSslProtocols());

        }

        logger.debug("Try to connect to mail sender with "+ mailConfig.getUsername());

        Session session = Session.getInstance(properties,

                new javax.mail.Authenticator() {

                    protected PasswordAuthentication getPasswordAuthentication() {

                        return new PasswordAuthentication(mailConfig.getUsername(), mailConfig.getPassword());

                    }

                });

        try {

            logger.debug("Try to sent e-mail to "+recipients.toString()+

                    "\nSubject: "+subject+

                    "\nBody:"+body);

            // Create a default MimeMessage object.

            MimeMessage message = new MimeMessage(session);

            // Set From: header field of the header.

            message.setFrom(new InternetAddress(mailConfig.getFrom()));

            // Set To: header field of the header.

            if(!bcc) {

                for (String to : recipients) {

                    message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));

                }

            }else{

                for (String to : recipients) {

                    message.addRecipient(Message.RecipientType.BCC, new InternetAddress(to));

                }

            }

            message.addRecipient(Message.RecipientType.BCC, new InternetAddress("openaire.test@gmail.com"));

            // Set Subject: header field

            message.setSubject(subject);

            // For simple text setText() can be used instead of setContent()

            // Send the actual HTML message, as big as you like

            message.setContent(body, "text/html");

            // Send message

            Transport.send(message);

            logger.debug("Sent message successfully....\n");

            return true;

        } catch (AddressException ae) {

            logger.error("Email could not be sent.", ae);

            return false;

        } catch (MessagingException me) {

            logger.error("Email could not be sent.", me);

            return false;

        }

    }

}