alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Java example source code file (B5017051.java)

This example Java source code file (B5017051.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

authorization, b5017051, cookiefilter, headers, inetsocketaddress, ioexception, list, mybasicauthenticator, net, network, part, passwordauthentication, runtimeexception, set\-cookie2, string, threading, threads, url, util

The B5017051.java Java example source code

/*
 * Copyright (c) 2005, 2006, 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.
 */

/*
 * @test
 * @bug 5017051 6360774
 * @run main/othervm B5017051
 * @summary Tests CR 5017051 & 6360774
 */

import java.net.*;
import java.util.*;
import java.io.*;
import com.sun.net.httpserver.*;
import java.util.concurrent.Executors;
import java.util.concurrent.ExecutorService;

/*
 * Part 1:
 *  First request sent to the http server will not have an "Authorization" header set and
 *  the server will respond with a 401, but not until it has set a cookie in the response
 *  headers. The subsequent request ( comes from HttpURLConnection's authentication retry )
 *  will have the appropriate Authorization header and the servers context handler will be
 *  invoked. The test passes only if the client (HttpURLConnection) has sent the cookie
 *  in its second request that had been set via the first response from the server.
 *
 * Part 2:
 *  Preload the CookieManager with a cookie. Make a http request that requires authentication
 *  The cookie will be sent in the first request (without the Authorization header), the
 *  server will respond with a 401 (from MyBasicAuthFilter) and the client will add the
 *  appropriate Authorization header. This tests ensures that there is only one Cookie header
 *  in the request that actually makes it to the Http servers context handler.
 */

public class B5017051
{
    com.sun.net.httpserver.HttpServer httpServer;
    ExecutorService executorService;

    public static void main(String[] args)
    {
        new B5017051();
    }

    public B5017051()
    {
        try {
            startHttpServer();
            doClient();
        } catch (IOException ioe) {
            System.err.println(ioe);
        }
    }

    void doClient() {
        java.net.Authenticator.setDefault(new MyAuthenticator());
        CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));

        try {
            InetSocketAddress address = httpServer.getAddress();

            // Part 1
            URL url = new URL("http://" + address.getHostName() + ":" + address.getPort() + "/test/");
            HttpURLConnection uc = (HttpURLConnection)url.openConnection();
            int resp = uc.getResponseCode();
            if (resp != 200)
                throw new RuntimeException("Failed: Part 1, Response code is not 200");

            System.out.println("Response code from Part 1 = 200 OK");

            // Part 2
            URL url2 = new URL("http://" + address.getHostName() + ":" + address.getPort() + "/test2/");

            // can use the global CookieHandler used for the first test as the URL's are different
            CookieHandler ch = CookieHandler.getDefault();
            Map<String,List header = new HashMap>();
            List<String> values = new LinkedList();
            values.add("Test2Cookie=\"TEST2\"; path=\"/test2/\"");
            header.put("Set-Cookie2", values);

            // preload the CookieHandler with a cookie for our URL
            // so that it will be sent during the first request
            ch.put(url2.toURI(), header);

            uc = (HttpURLConnection)url2.openConnection();
            resp = uc.getResponseCode();
            if (resp != 200)
                throw new RuntimeException("Failed: Part 2, Response code is not 200");

            System.out.println("Response code from Part 2 = 200 OK");


        } catch (IOException e) {
            e.printStackTrace();
        } catch (URISyntaxException ue) {
            ue.printStackTrace();
        } finally {
            httpServer.stop(1);
            executorService.shutdown();
        }
    }

    /**
     * Http Server
     */
    public void startHttpServer() throws IOException {
        httpServer = com.sun.net.httpserver.HttpServer.create(new InetSocketAddress(0), 0);

        // create HttpServer context for Part 1.
        HttpContext ctx = httpServer.createContext("/test/", new MyHandler());
        ctx.setAuthenticator( new MyBasicAuthenticator("foo"));
        // CookieFilter needs to be executed before Authenticator.
        ctx.getFilters().add(0, new CookieFilter());

        // create HttpServer context for Part 2.
        HttpContext ctx2 = httpServer.createContext("/test2/", new MyHandler2());
        ctx2.setAuthenticator( new MyBasicAuthenticator("foobar"));

        executorService = Executors.newCachedThreadPool();
        httpServer.setExecutor(executorService);
        httpServer.start();
    }

    class MyHandler implements HttpHandler {
        public void handle(HttpExchange t) throws IOException {
            InputStream is = t.getRequestBody();
            Headers reqHeaders = t.getRequestHeaders();
            Headers resHeaders = t.getResponseHeaders();
            while (is.read () != -1) ;
            is.close();

            if (!reqHeaders.containsKey("Authorization"))
                t.sendResponseHeaders(400, -1);

            List<String> cookies = reqHeaders.get("Cookie");
            if (cookies != null) {
                for (String str : cookies) {
                    if (str.equals("Customer=WILE_E_COYOTE"))
                        t.sendResponseHeaders(200, -1);
                }
            }
            t.sendResponseHeaders(400, -1);
        }
    }

    class MyHandler2 implements HttpHandler {
        public void handle(HttpExchange t) throws IOException {
            InputStream is = t.getRequestBody();
            Headers reqHeaders = t.getRequestHeaders();
            Headers resHeaders = t.getResponseHeaders();
            while (is.read () != -1) ;
            is.close();

            if (!reqHeaders.containsKey("Authorization"))
                t.sendResponseHeaders(400, -1);

            List<String> cookies = reqHeaders.get("Cookie");

            // there should only be one Cookie header
            if (cookies != null && (cookies.size() == 1)) {
                t.sendResponseHeaders(200, -1);
            }
            t.sendResponseHeaders(400, -1);
        }
    }

    class MyAuthenticator extends java.net.Authenticator {
        public PasswordAuthentication getPasswordAuthentication () {
            return new PasswordAuthentication("tester", "passwd".toCharArray());
        }
    }

    class MyBasicAuthenticator extends BasicAuthenticator
    {
        public MyBasicAuthenticator(String realm) {
            super(realm);
        }

        public boolean checkCredentials (String username, String password) {
            return username.equals("tester") && password.equals("passwd");
        }
    }

    class CookieFilter extends Filter
    {
        public void doFilter(HttpExchange t, Chain chain) throws IOException
        {
            Headers resHeaders = t.getResponseHeaders();
            Headers reqHeaders = t.getRequestHeaders();

            if (!reqHeaders.containsKey("Authorization"))
                resHeaders.set("Set-Cookie2", "Customer=\"WILE_E_COYOTE\"; path=\"/test/\"");

            chain.doFilter(t);
        }

        public void destroy(HttpContext c) { }

        public void init(HttpContext c) { }

        public String description() {
            return new String("Filter for setting a cookie for requests without an \"Authorization\" header.");
        }
    }
}

Other Java examples (source code examples)

Here is a short list of links related to this Java B5017051.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2024 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.