uk.me.sa.android.notify_smtp.net.SendEmail.java Source code

Introduction

Here is the source code for uk.me.sa.android.notify_smtp.net.SendEmail.java

Source

/*
   notify-smtp-android - Android Notify to SMTP Service
    
   Copyright 2015  Simon Arlott
    
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU 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 General Public License for more details.
    
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package uk.me.sa.android.notify_smtp.net;

import java.io.IOException;
import java.net.SocketException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;
import java.util.Date;
import java.util.concurrent.Callable;
import java.util.concurrent.TimeUnit;

import org.apache.commons.net.smtp.AuthenticatingSMTPClient.AUTH_METHOD;
import org.apache.commons.net.smtp.SMTPReply;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import uk.me.sa.android.notify_smtp.data.Message;
import uk.me.sa.android.notify_smtp.data.ValidatedPrefs;

public class SendEmail implements Callable<Boolean> {
    private static final Logger log = LoggerFactory.getLogger(SendEmail.class);
    private static final int TIMEOUT_MS = (int) TimeUnit.MILLISECONDS.convert(30, TimeUnit.SECONDS);

    private ValidatedPrefs prefs;
    private String subject;
    private Date ts;

    public SendEmail(ValidatedPrefs prefs, String subject, Date ts) {
        this.prefs = prefs;
        this.subject = subject;
        this.ts = (Date) ts.clone();
    }

    public Boolean call() throws NoSuchAlgorithmException, SocketException, IOException, InvalidKeyException,
            InvalidKeySpecException {
        log.info("Sending email: {} ({})", subject, ts);
        AuthSMTPTLSClient client = new AuthSMTPTLSClient();
        client.setDefaultTimeout(TIMEOUT_MS);
        client.connect(prefs.node, prefs.port);
        client.setSoTimeout(TIMEOUT_MS);
        try {
            if (!SMTPReply.isPositiveCompletion(client.getReplyCode()))
                return false;

            if (!client.elogin() || !client.execTLS())
                return false;

            if (!client.elogin() || !client.auth(AUTH_METHOD.PLAIN, prefs.username, prefs.password))
                return false;

            if (!client.setSender(prefs.sender))
                return false;

            for (String recipient : prefs.recipients)
                if (!client.addRecipient(recipient))
                    return false;

            if (!client.sendShortMessageData(new Message(subject, ts, prefs.sender, prefs.recipients).toString()))
                return false;

            return client.logout();
        } finally {
            client.disconnect();
        }
    }
}