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Java example source code file (UserAuth.java)

This example Java source code file (UserAuth.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, executorservice, hasauthhandler, headers, httpcontext, httphandler, httpurlconnection, inetsocketaddress, ioexception, location, net, network, redirecthandler, string, threading, threads, url, userauth, util

The UserAuth.java Java example source code

/*
 * Copyright (c) 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 6421122
 * @run main/othervm UserAuth
 * @summary Authorization header removed for preemptive authentication by user code
 */

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


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

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

    public UserAuth() {
        try {
            startHttpServer();
            doClient();
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    }

    void doClient() {
        try {
            InetSocketAddress address = httpServer.getAddress();

            // GET Request
            URL url = new URL("http://" + address.getHostName() + ":" + address.getPort() + "/redirect/");
            HttpURLConnection uc = (HttpURLConnection)url.openConnection();
            uc.setRequestProperty("Authorization", "testString:ValueDoesNotMatter");
            int resp = uc.getResponseCode();

            System.out.println("Response Code is " + resp);
            if (resp != 200)
                throw new RuntimeException("Failed: Authorization header was not retained after redirect");

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

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

        // create HttpServer context
        HttpContext ctx = httpServer.createContext("/redirect/", new RedirectHandler());
        HttpContext ctx1 = httpServer.createContext("/doStuff/", new HasAuthHandler());

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

    class RedirectHandler implements HttpHandler {
        public void handle(HttpExchange t) throws IOException {
            InetSocketAddress address = httpServer.getAddress();
            String redirectUrl = "http://" + address.getHostName() + ":" + address.getPort() + "/doStuff/";

            Headers resHeaders = t.getResponseHeaders();
            resHeaders.add("Location", redirectUrl);

            t.sendResponseHeaders(307, -1);
            t.close();
        }
    }

    class HasAuthHandler implements HttpHandler {
        public void handle(HttpExchange t) throws IOException {
            Headers reqHeaders = t.getRequestHeaders();

            List<String> auth = reqHeaders.get("Authorization");

            if (auth == null || !auth.get(0).equals("testString:ValueDoesNotMatter"))
                t.sendResponseHeaders(400, -1);

            t.sendResponseHeaders(200, -1);
            t.close();
        }
    }



}

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