/*************************************************************************
* Copyright 2009-2012 Eucalyptus Systems, Inc.
*
* 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; version 3 of the License.
*
* 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/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/
package com.eucalyptus.util;
import java.io.UnsupportedEncodingException;
import java.util.Properties;
import javax.mail.Address;
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 org.apache.log4j.Logger;
import com.eucalyptus.configurable.ConfigurableClass;
import com.eucalyptus.configurable.ConfigurableField;
import com.eucalyptus.configurable.ConfigurableFieldType;
@ConfigurableClass( root = "bootstrap.notifications.email",
description = "Parameters controlling the delivery of notification emails." )
public class Emails {
private static Logger LOG = Logger.getLogger( Emails.class );
@ConfigurableField( description = "SMTP host to use when sending email. If unset, the following values are tried: 1) the value of the 'mail.smtp.host' system property, 2) localhost, 3) mailhost." )
public static String EMAIL_SMTP_HOST = null;
@ConfigurableField( description = "SMTP port to use when sending email. Defaults to 25", initial = "25" )
public static Integer EMAIL_SMTP_PORT = 25;
enum SessionProperties {
MAIL_SMTP_HOST {
@Override
public String getPropertyValue( ) {
if ( Emails.EMAIL_SMTP_HOST != null ) {
return Emails.EMAIL_SMTP_HOST;
} else if ( System.getProperty( this.getPropertyName( ) ) != null ) {
return System.getProperty( this.getPropertyName( ) );
} else {
return "localhost";
}
}
},
MAIL_SMTP_PORT( String.valueOf( 25 ) ) {
@Override
public String getPropertyValue( ) {
if ( Emails.EMAIL_SMTP_PORT != null ) {
return String.valueOf( Emails.EMAIL_SMTP_PORT );
} else {
return super.getPropertyValue( );
}
}
},
MAIL_TRANSPORT_PROTOCOL( "smtp" ),
MAIL_DEBUG( String.valueOf( true ) );
private final String value;
private SessionProperties( ) {
this.value = null;
}
private SessionProperties( String value ) {
this.value = value;
}
public String getPropertyValue( ) {
return this.value;
}
public final String getPropertyName( ) {
return this.name( ).replace( "_", "." ).toLowerCase( );
}
}
private static Address validate( String emailAddress, String emailName ) {
if ( emailAddress != null ) {
try {
InternetAddress addr = new InternetAddress( emailAddress, emailName );
addr.validate( );
return addr;
} catch ( AddressException ex ) {
throw new IllegalArgumentException( "Provided address could not be validated: " + ( emailName != null ? emailName : "" ) + " <" + emailAddress + ">", ex );
} catch ( UnsupportedEncodingException ex ) {
throw new IllegalArgumentException( "Provided address could not be validated: " + ( emailName != null ? emailName : "" ) + " <" + emailAddress + ">", ex );
}
} else {
throw new IllegalArgumentException( "Address must be not-null." );
}
}
public static void send( String from, String to, String subject, String content ) {
send( from, null, to, subject, content );
}
public static void send( String from, String fromName, String to, String subject, String content ) {
Address fromAddress = validate( from, fromName );
Address toAddress = validate( to, null );
final Properties properties = new Properties( System.getProperties( ) );
for ( SessionProperties p : SessionProperties.values( ) ) {
properties.setProperty( p.getPropertyName( ), p.getPropertyValue( ) );
}
try {
doSend( subject, content, fromAddress, toAddress, properties );
} catch ( MessagingException ex ) {
try {
properties.setProperty( SessionProperties.MAIL_SMTP_HOST.getPropertyName( ), "mailhost" );
doSend( subject, content, fromAddress, toAddress, properties );
} catch ( MessagingException ex1 ) {
LOG.error( ex1, ex1 );
}
}
}
private static void doSend( String subject, String content, Address fromAddress, Address toAddress, final Properties properties ) throws MessagingException {
Session session = Session.getDefaultInstance( properties );
MimeMessage message = new MimeMessage( session );
message.setSubject( subject );
message.setText( content );
message.setFrom( fromAddress );
message.setRecipient( Message.RecipientType.TO, toAddress );
Transport.send( message );
}
}