Java tutorial
/* * $Id: SSLProtocolSocketFactory.java,v 1.1 2006/10/24 21:12:13 rbair Exp $ * * Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle, * Santa Clara, California 95054, U.S.A. All rights reserved. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ package org.jdesktop.http; import java.io.IOException; import java.net.InetAddress; import java.net.InetSocketAddress; import java.net.Socket; import java.net.SocketAddress; import java.net.UnknownHostException; 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.ProtocolSocketFactory; import org.apache.commons.httpclient.protocol.SecureProtocolSocketFactory; import java.util.logging.Level; import java.util.logging.Logger; import javax.net.SocketFactory; import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; /** */ class SSLProtocolSocketFactory implements SecureProtocolSocketFactory, ProtocolSocketFactory { private SSLContext sslcontext = null; private SecurityHandler handler; //delegate for handling the security question private Session.SecurityLevel level; //the security level /** * Constructor for EasySSLProtocolSocketFactory. */ public SSLProtocolSocketFactory(SecurityHandler h, Session.SecurityLevel l) { super(); this.handler = h; this.level = l; } private SSLContext getSSLContext(String host) { if (this.sslcontext == null) { try { TrustManager tm = null; if (level == Session.SecurityLevel.Low) { tm = new LowSecurityX509TrustManager(null); } else if (level == Session.SecurityLevel.Medium) { tm = new MediumSecurityX509TrustManager(host, handler, null); } else { tm = new HighSecurityX509TrustManager(null); } SSLContext context = SSLContext.getInstance("SSL"); context.init(null, new TrustManager[] { tm }, null); this.sslcontext = context; } catch (Exception e) { throw new HttpClientError(e.toString()); } } return this.sslcontext; } /** * @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 { return getSSLContext(host).getSocketFactory().createSocket(host, port, clientHost, clientPort); } /** * Attempts to get a new socket connection to the given host within the given time limit. * <p> * To circumvent the limitations of older JREs that do not support connect timeout 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(); SocketFactory socketfactory = getSSLContext(host).getSocketFactory(); if (timeout == 0) { return socketfactory.createSocket(host, port, localAddress, localPort); } else { Socket socket = socketfactory.createSocket(); SocketAddress localaddr = new InetSocketAddress(localAddress, localPort); SocketAddress remoteaddr = new InetSocketAddress(host, port); socket.bind(localaddr); socket.connect(remoteaddr, timeout); return socket; } } /** * @see SecureProtocolSocketFactory#createSocket(java.lang.String,int) */ public Socket createSocket(String host, int port) throws IOException, UnknownHostException { return getSSLContext(host).getSocketFactory().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 getSSLContext(host).getSocketFactory().createSocket(socket, host, port, autoClose); } public boolean equals(Object obj) { return ((obj != null) && obj.getClass().equals(SSLProtocolSocketFactory.class)); } public int hashCode() { return SSLProtocolSocketFactory.class.hashCode(); } }