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Java example source code file (PostThruProxyWithAuth.java)

This example Java source code file (PostThruProxyWithAuth.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

bufferedreader, exception, http, https, nameverifier, net, network, passwordauthentication, post, proxytunnelserver, security, serversocketfactory, socketaddress, ssl, string, testauthenticator, testserver, url

The PostThruProxyWithAuth.java Java example source code

/*
 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * This test is run through PostThruProxyWithAuth.sh
 */

import java.io.*;
import java.net.*;
import java.security.KeyStore;
import javax.net.*;
import javax.net.ssl.*;
import java.security.cert.*;

/*
 * This test case is written to test the https POST through a proxy
 * with proxy authentication.
 *
 * PostThruProxyWithAuth.java -- includes a simple server that serves
 * http POST method requests in secure channel, and a client
 * that makes https POST request through a proxy.
 */

public class PostThruProxyWithAuth {

    /*
     * Where do we find the keystores?
     */
    static String pathToStores = "../../../../../../etc";
    static String keyStoreFile = "keystore";
    static String trustStoreFile = "truststore";
    static String passwd = "passphrase";

    volatile private static int serverPort = 0;

    /*
     * The TestServer implements a OriginServer that
     * processes HTTP requests and responses.
     */
    static class TestServer extends OriginServer {
        public TestServer(ServerSocket ss) throws Exception {
            super(ss);
        }

        /*
         * Returns an array of bytes containing the bytes for
         * the data sent in the response.
         *
         * @return bytes for the data in the response
         */
        public byte[] getBytes() {
            return
                "Https POST thru proxy is successful with proxy authentication".
                getBytes();
        }
    }

    /*
     * Main method to create the server and client
     */
    public static void main(String args[]) throws Exception
    {
        String keyFilename =
            args[1] + "/" + pathToStores +
                "/" + keyStoreFile;
        String trustFilename =
            args[1] + "/" + pathToStores +
                "/" + trustStoreFile;

        System.setProperty("javax.net.ssl.keyStore", keyFilename);
        System.setProperty("javax.net.ssl.keyStorePassword", passwd);
        System.setProperty("javax.net.ssl.trustStore", trustFilename);
        System.setProperty("javax.net.ssl.trustStorePassword", passwd);

        boolean useSSL = true;
        /*
         * setup the server
         */
        try {
            ServerSocketFactory ssf =
                PostThruProxyWithAuth.getServerSocketFactory(useSSL);
            ServerSocket ss = ssf.createServerSocket(serverPort);
            serverPort = ss.getLocalPort();
            new TestServer(ss);
        } catch (Exception e) {
            System.out.println("Server side failed:" +
                                e.getMessage());
            throw e;
        }
        // trigger the client
        try {
            doClientSide(args[0]);
        } catch (Exception e) {
            System.out.println("Client side failed: " +
                                e.getMessage());
            throw e;
          }
    }

    private static ServerSocketFactory getServerSocketFactory
                   (boolean useSSL) throws Exception {
        if (useSSL) {
            SSLServerSocketFactory ssf = null;
            // set up key manager to do server authentication
            SSLContext ctx;
            KeyManagerFactory kmf;
            KeyStore ks;
            char[] passphrase = passwd.toCharArray();

            ctx = SSLContext.getInstance("TLS");
            kmf = KeyManagerFactory.getInstance("SunX509");
            ks = KeyStore.getInstance("JKS");

            ks.load(new FileInputStream(System.getProperty(
                        "javax.net.ssl.keyStore")), passphrase);
            kmf.init(ks, passphrase);
            ctx.init(kmf.getKeyManagers(), null, null);

            ssf = ctx.getServerSocketFactory();
            return ssf;
        } else {
            return ServerSocketFactory.getDefault();
        }
    }

    /*
     * Message to be posted
     */
    static String postMsg = "Testing HTTP post on a https server";

    static void doClientSide(String hostname) throws Exception {
        /*
         * setup up a proxy
         */
        SocketAddress pAddr = setupProxy();

        /*
         * we want to avoid URLspoofCheck failures in cases where the cert
         * DN name does not match the hostname in the URL.
         */
        HttpsURLConnection.setDefaultHostnameVerifier(
                                      new NameVerifier());
        URL url = new URL("https://" + hostname + ":" + serverPort);

        Proxy p = new Proxy(Proxy.Type.HTTP, pAddr);
        HttpsURLConnection https = (HttpsURLConnection)url.openConnection(p);
        https.setDoOutput(true);
        https.setRequestMethod("POST");
        PrintStream ps = null;
        try {
           ps = new PrintStream(https.getOutputStream());
           ps.println(postMsg);
           ps.flush();
           if (https.getResponseCode() != 200) {
                throw new RuntimeException("test Failed");
           }
           ps.close();
           // clear the pipe
           BufferedReader in = new BufferedReader(
                                new InputStreamReader(
                                https.getInputStream()));
           String inputLine;
           while ((inputLine = in.readLine()) != null)
                 System.out.println("Client received: " + inputLine);
           in.close();
        } catch (SSLException e) {
            if (ps != null)
                ps.close();
            throw e;
        }
    }

    static class NameVerifier implements HostnameVerifier {
        public boolean verify(String hostname, SSLSession session) {
            return true;
        }
    }

    static SocketAddress setupProxy() throws IOException {
        ProxyTunnelServer pserver = new ProxyTunnelServer();

        /*
         * register a system wide authenticator and setup the proxy for
         * authentication
         */
        Authenticator.setDefault(new TestAuthenticator());

        // register with the username and password
        pserver.needUserAuth(true);
        pserver.setUserAuth("Test", "test123");

        pserver.start();

        return new InetSocketAddress("localhost", pserver.getPort());
    }

    public static class TestAuthenticator extends Authenticator {
        public PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication("Test",
                                         "test123".toCharArray());
        }
    }
}

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