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

Introduction

Here is the source code for uk.me.sa.android.notify_smtp.net.AuthSMTPTLSClient.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.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;

import javax.net.ssl.HttpsURLConnection;

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

import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;

public class AuthSMTPTLSClient extends AuthenticatingSMTPClient implements ProtocolCommandListener {
    private static final Logger log = LoggerFactory.getLogger(AuthSMTPTLSClient.class);

    private String command;

    public AuthSMTPTLSClient() throws NoSuchAlgorithmException {
        super("TLS", "UTF-8");
        setHostnameVerifier(HttpsURLConnection.getDefaultHostnameVerifier());
        addProtocolCommandListener(this);
    }

    @Override
    protected void _connectAction_() throws IOException {
        command = "CONN";
        super._connectAction_();
    }

    @SuppressFBWarnings("DE_MIGHT_IGNORE")
    @Override
    public void disconnect() {
        try {
            // This doesn't throw IOException
            super.disconnect();
        } catch (IOException e) {
        }
    }

    @Override
    public boolean elogin() throws IOException {
        InetAddress addr = getLocalAddress();
        if (addr instanceof Inet4Address) {
            return elogin("[" + addr.getHostAddress() + "]");
        } else if (addr instanceof Inet6Address) {
            return elogin("[IPv6:" + addr.getHostAddress() + "]");
        } else {
            return elogin("android.invalid");
        }
    }

    @Override
    public boolean auth(AUTH_METHOD method, String username, String password)
            throws IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidKeySpecException {
        removeProtocolCommandListener(this);

        boolean ok = super.auth(method, username, password);
        if (SMTPReply.isPositiveCompletion(getReplyCode())) {
            log.info("AUTH {}", getReplyStrings()[0]);
        } else {
            log.error("AUTH {}", getReplyString());
        }

        addProtocolCommandListener(this);
        return ok;
    }

    @Override
    public void protocolCommandSent(ProtocolCommandEvent event) {
        command = event.getCommand();
    }

    @Override
    public void protocolReplyReceived(ProtocolCommandEvent event) {
        if (SMTPReply.isPositiveCompletion(event.getReplyCode())) {
            log.info("{} {}", command, getReplyStrings()[0]);
        } else {
            log.error("{} {}", command, event.getMessage());
        }
    }
}