rapture.kernel.alert.email.EmailAlerter Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of RaptureCore Show documentation
null
There is a newer version: 3.0.4
/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2011-2016 Incapture Technologies LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package rapture.kernel.alert.email;

import org.apache.log4j.Logger;
import rapture.common.impl.jackson.JacksonUtil;
import rapture.event.RaptureAlertEvent;
import rapture.kernel.ContextFactory;
import rapture.kernel.Kernel;
import rapture.kernel.alert.EventAlerter;
import rapture.mail.EmailTemplate;
import rapture.mail.SMTPConfig;

import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.util.Properties;

public class EmailAlerter implements EventAlerter {
    public static final String TYPE = "EMAIL";

    private static final Logger logger = Logger.getLogger(EmailAlerter.class);
    private static final String CONFIG_URI = "dp/alert/config/email";
    private static final String TEMPLATE_URI = "dp/alert/template/email/";
    private static final SMTPConfig EMAIL_CONFIG = getEmailConfig();

    private EmailTemplate emailTemplate;

    public EmailAlerter(String templateName) {
        String templateJson = Kernel.getSys().retrieveSystemConfig(ContextFactory.getKernelUser(),
                "CONFIG", TEMPLATE_URI + templateName);
        this.emailTemplate = JacksonUtil.objectFromJson(templateJson, EmailTemplate.class);
    }

    @Override
    public String getType() {
        return TYPE;
    }

    @Override
    public void alert(RaptureAlertEvent event) {
        String from = EMAIL_CONFIG.getUsername();
        String to = emailTemplate.getEmailTo();
        String subject = event.parseTemplate(emailTemplate.getSubject());
        String msgBody = event.parseTemplate(emailTemplate.getMsgBody());
        try {
            Message message = new MimeMessage(getSession());
            message.setFrom(new InternetAddress(from));
            message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
            message.setSubject(subject);
            message.setText(msgBody);
            Transport.send(message);
        } catch (MessagingException e) {
            logger.error("Failed to send email", e);
        }
    }

    private Session getSession() {
        Properties props = new Properties();
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.host", EMAIL_CONFIG.getHost());
        props.put("mail.smtp.port", EMAIL_CONFIG.getPort());

        return Session.getDefaultInstance(props, new Authenticator() {
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(EMAIL_CONFIG.getUsername(), EMAIL_CONFIG.getPassword());
            }
        });
    }

    private static SMTPConfig getEmailConfig() {
        String configString = Kernel.getSys().retrieveSystemConfig(ContextFactory.getKernelUser(), "CONFIG", CONFIG_URI);
        return JacksonUtil.objectFromJson(configString, SMTPConfig.class);
    }
}