/*
* ====================================================================
*
* Copyright 2002-2004 The Apache Software Foundation
*
* Licensed 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* [Additional notices, if required by prior licensing conditions]
*
*/
package org.apache.commons.httpclient.contrib.ssl;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import javax.net.ssl.SSLSocketFactory;
import org.apache.commons.httpclient.ConnectTimeoutException;
import org.apache.commons.httpclient.HttpClientError;
import org.apache.commons.httpclient.params.HttpConnectionParams;
import org.apache.commons.httpclient.protocol.ControllerThreadSocketFactory;
import org.apache.commons.httpclient.protocol.ReflectionSocketFactory;
import org.apache.commons.httpclient.protocol.SecureProtocolSocketFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.sun.net.ssl.SSLContext;
import com.sun.net.ssl.TrustManager;
/**
* <p>
* EasySSLProtocolSocketFactory can be used to creats SSL {@link Socket}s
* that accept self-signed certificates.
* </p>
* <p>
* This socket factory SHOULD NOT be used for productive systems
* due to security reasons, unless it is a concious decision and
* you are perfectly aware of security implications of accepting
* self-signed certificates
* </p>
*
* @author <a href="mailto:oleg@ural.ru">Oleg Kalnichevski</a>
*
* DISCLAIMER: HttpClient developers DO NOT actively support this component.
* The component is provided as a reference material, which may be inappropriate
* to be used without additional customization.
*/
public class EasySSLProtocolSocketFactory implements SecureProtocolSocketFactory {
/** Log object for this class. */
private static final Log LOG = LogFactory.getLog(EasySSLProtocolSocketFactory.class);
private static SSLContext SSL_CONTEXT_SINGLETON = null;
/**
* Constructor for EasySSLProtocolSocketFactory.
*
* Code sample:
*
* <blockquote>
* Protocol easyhttps = new Protocol(
* "https", new EasySSLProtocolSocketFactory(), 443);
*
* HttpClient client = new HttpClient();
* client.getHostConfiguration().setHost("localhost", 443, easyhttps);
* </blockquote>
*/
public EasySSLProtocolSocketFactory() {
super();
}
private static SSLContext createEasySSLContext() {
try {
SSLContext context = SSLContext.getInstance("SSL");
context.init(
null,
new TrustManager[] {new EasyX509TrustManager(null)},
null);
return context;
} catch (Exception e) {
LOG.error(e.getMessage(), e);
throw new HttpClientError(e.toString());
}
}
private static SSLSocketFactory getEasySSLSocketFactory() {
if (SSL_CONTEXT_SINGLETON == null) {
SSL_CONTEXT_SINGLETON = createEasySSLContext();
}
return SSL_CONTEXT_SINGLETON.getSocketFactory();
}
/**
* @see SecureProtocolSocketFactory#createSocket(java.lang.String,int,java.net.InetAddress,int)
*/
public Socket createSocket(
String host,
int port,
InetAddress clientHost,
int clientPort)
throws IOException, UnknownHostException {
Socket socket = getEasySSLSocketFactory().createSocket(
host,
port,
clientHost,
clientPort
);
return socket;
}
/**
* Attempts to get a new socket connection to the given host within the given time limit.
* <p>
* This method employs several techniques to circumvent the limitations of older JREs that
* do not support connect timeout. When running in JRE 1.4 or above reflection is used to
* call Socket#connect(SocketAddress endpoint, int timeout) method. When executing in older
* JREs a controller thread is executed. The controller thread attempts to create a new socket
* within the given limit of time. If socket constructor does not return until the timeout
* expires, the controller terminates and throws an {@link ConnectTimeoutException}
* </p>
*
* @param host the host name/IP
* @param port the port on the host
* @param clientHost the local host name/IP to bind the socket to
* @param clientPort the port on the local machine
* @param params {@link HttpConnectionParams Http connection parameters}
*
* @return Socket a new socket
*
* @throws IOException if an I/O error occurs while creating the socket
* @throws UnknownHostException if the IP address of the host cannot be
* determined
*/
public Socket createSocket(
final String host,
final int port,
final InetAddress localAddress,
final int localPort,
final HttpConnectionParams params
) throws IOException, UnknownHostException, ConnectTimeoutException {
if (params == null) {
throw new IllegalArgumentException("Parameters may not be null");
}
int timeout = params.getConnectionTimeout();
if (timeout == 0) {
return createSocket(host, port, localAddress, localPort);
} else {
// To be eventually deprecated when migrated to Java 1.4 or above
Socket socket = ReflectionSocketFactory.createSocket(
"javax.net.ssl.SSLSocketFactory", host, port, localAddress, localPort, timeout);
if (socket == null) {
socket = ControllerThreadSocketFactory.createSocket(
this, host, port, localAddress, localPort, timeout);
}
return socket;
}
}
/**
* @see SecureProtocolSocketFactory#createSocket(java.lang.String,int)
*/
public Socket createSocket(String host, int port)
throws IOException, UnknownHostException {
return getEasySSLSocketFactory().createSocket(
host,
port
);
}
/**
* @see SecureProtocolSocketFactory#createSocket(java.net.Socket,java.lang.String,int,boolean)
*/
public Socket createSocket(
Socket socket,
String host,
int port,
boolean autoClose)
throws IOException, UnknownHostException {
return getEasySSLSocketFactory().createSocket(
socket,
host,
port,
autoClose
);
}
public boolean equals(Object obj) {
return ((obj != null) && obj.getClass().equals(EasySSLProtocolSocketFactory.class));
}
public int hashCode() {
return EasySSLProtocolSocketFactory.class.hashCode();
}
}
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