/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.naming.factory;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.naming.Context;
import javax.naming.Name;
import javax.naming.RefAddr;
import javax.naming.Reference;
import javax.naming.spi.ObjectFactory;
/**
* <p>Factory class that creates a JNDI named JavaMail Session factory,
* which can be used for managing inbound and outbound electronic mail
* messages via JavaMail APIs. All messaging environment properties
* described in the JavaMail Specification may be passed to the Session
* factory; however the following properties are the most commonly used:</p>
* <ul>
* <li>
* <li><strong>mail.smtp.host</strong> - Hostname for outbound transport
* connections. Defaults to <code>localhost</code> if not specified.</li>
* </ul>
*
* <p>This factory can be configured in a
* <code><Context></code> element in your <code>conf/server.xml</code>
* configuration file. An example of factory configuration is:</p>
* <pre>
* <Resource name="mail/smtp" auth="CONTAINER"
* type="javax.mail.Session"/>
* <ResourceParams name="mail/smtp">
* <parameter>
* <name>factory</name>
* <value>org.apache.naming.factory.MailSessionFactory</value>
* </parameter>
* <parameter>
* <name>mail.smtp.host</name>
* <value>mail.mycompany.com</value>
* </parameter>
* </ResourceParams>
* </pre>
*
* @author Craig R. McClanahan
* @version $Id: MailSessionFactory.java 987920 2010-08-22 15:34:34Z markt $
*/
public class MailSessionFactory implements ObjectFactory {
/**
* The Java type for which this factory knows how to create objects.
*/
protected static final String factoryType = "javax.mail.Session";
/**
* Create and return an object instance based on the specified
* characteristics.
*
* @param refObj Reference information containing our parameters, or null
* if there are no parameters
* @param name The name of this object, relative to context, or null
* if there is no name
* @param context The context to which name is relative, or null if name
* is relative to the default initial context
* @param env Environment variables, or null if there are none
*
* @exception Exception if an error occurs during object creation
*/
public Object getObjectInstance(Object refObj, Name name, Context context,
Hashtable<?,?> env) throws Exception {
// Return null if we cannot create an object of the requested type
final Reference ref = (Reference) refObj;
if (!ref.getClassName().equals(factoryType))
return (null);
// Create a new Session inside a doPrivileged block, so that JavaMail
// can read its default properties without throwing Security
// exceptions.
//
// Bugzilla 31288, 33077: add support for authentication.
return AccessController.doPrivileged(new PrivilegedAction<Session>() {
public Session run() {
// Create the JavaMail properties we will use
Properties props = new Properties();
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.host", "localhost");
String password = null;
Enumeration<RefAddr> attrs = ref.getAll();
while (attrs.hasMoreElements()) {
RefAddr attr = attrs.nextElement();
if ("factory".equals(attr.getType())) {
continue;
}
if ("password".equals(attr.getType())) {
password = (String) attr.getContent();
continue;
}
props.put(attr.getType(), attr.getContent());
}
Authenticator auth = null;
if (password != null) {
String user = props.getProperty("mail.smtp.user");
if(user == null) {
user = props.getProperty("mail.user");
}
if(user != null) {
final PasswordAuthentication pa = new PasswordAuthentication(user, password);
auth = new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return pa;
}
};
}
}
// Create and return the new Session object
Session session = Session.getInstance(props, auth);
return (session);
}
} );
}
}