it.polimi.modaclouds.cpimlibrary.mailservice.AmazonMailManager.java Source code

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Here is the source code for it.polimi.modaclouds.cpimlibrary.mailservice.AmazonMailManager.java

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/**
 * Copyright 2013 deib-polimi
 * Contact: deib-polimi <marco.miglierina@polimi.it>
 *
 *    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 it.polimi.modaclouds.cpimlibrary.mailservice;

import it.polimi.modaclouds.cpimlibrary.CloudMetadata;

import java.io.IOException;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.PropertiesCredentials;
import com.amazonaws.services.simpleemail.AWSJavaMailTransport;
import com.amazonaws.services.simpleemail.AmazonSimpleEmailService;
import com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient;
import com.amazonaws.services.simpleemail.model.ListVerifiedEmailAddressesResult;
import com.amazonaws.services.simpleemail.model.VerifyEmailAddressRequest;

public class AmazonMailManager extends CloudMailManager {

    private String username = null;
    private AmazonSimpleEmailService ses = null;
    private AWSCredentials credentials;

    public AmazonMailManager(CloudMetadata metadata) {
        this.username = metadata.getUsernameMail();
        this.credentials = null;
        try {
            credentials = new PropertiesCredentials(
                    getClass().getClassLoader().getResourceAsStream("AwsCredentials.properties"));
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        this.ses = new AmazonSimpleEmailServiceClient(this.credentials);
        verifyEmailAddress(this.username);
    }

    @Override
    public void sendMail(CloudMail msgToSend) {

        if (!verifyEmailAddress(this.username) || !verifyEmailAddress(msgToSend.getTo()))
            return;

        Properties props = new Properties();
        props.setProperty("mail.transport.protocol", "aws");
        props.setProperty("mail.aws.user", credentials.getAWSAccessKeyId());
        props.setProperty("mail.aws.password", credentials.getAWSSecretKey());

        Session session = Session.getInstance(props);

        try {
            // Create a new Message
            Message msg = new MimeMessage(session);
            msg.setFrom(new InternetAddress(this.username));
            msg.addRecipient(Message.RecipientType.TO, new InternetAddress(msgToSend.getTo()));
            msg.setSubject(msgToSend.getSubject());
            msg.setText(msgToSend.getMsg());
            msg.saveChanges();

            // Reuse one Transport object for sending all your messages
            // for better performance
            Transport t = new AWSJavaMailTransport(session, null);
            t.connect();
            t.sendMessage(msg, null);

            // Close your transport when you're completely done sending
            // all your messages
            t.close();
        } catch (AddressException e) {
            e.printStackTrace();
            System.out.println("Caught an AddressException, which means one or more of your "
                    + "addresses are improperly formatted.");
        } catch (MessagingException e) {
            e.printStackTrace();
            System.out.println("Caught a MessagingException, which means that there was a "
                    + "problem sending your message to Amazon's E-mail Service check the "
                    + "stack trace for more information.");
        }

    }

    public boolean verifyEmailAddress(String address) {
        ListVerifiedEmailAddressesResult verifiedEmails = ses.listVerifiedEmailAddresses();
        boolean ret;
        if (verifiedEmails.getVerifiedEmailAddresses().contains(address))
            ret = true;
        else {
            ses.verifyEmailAddress(new VerifyEmailAddressRequest().withEmailAddress(address));
            System.out.println("Please check the email address " + address + " to verify it");
            ret = false;
        }
        return ret;
    }

}