/*

 * 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.

 *

 */

/* @test

 * @bug 4258697

 * @summary Make sure that http CONTINUE status followed by invalid

 * response doesn't cause HttpClient to recursively loop and

 * eventually StackOverflow.

 *

 */

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

import java.io.PrintStream;

import java.net.ServerSocket;

import java.net.Socket;

import java.net.URL;

import java.net.HttpURLConnection;

public class HttpContinueStackOverflow {

    static class Server implements Runnable {

        int port;

        Server(int port) {

            this.port = port;

        }

        public void run() {

            try {

                /* bind to port and wait for connection */

                ServerSocket serverSock = new ServerSocket(     port );

                serverSock.setSoTimeout(10000);

                Socket sock = serverSock.accept();

                /* setup streams and read http request */

                BufferedReader in = new BufferedReader(

                    new InputStreamReader(sock.getInputStream()));

                PrintStream out = new PrintStream( sock.getOutputStream() );

                String request = in.readLine();

                /* send continue followed by invalid response */

                out.println("HTTP/1.1 100 Continue\r");

                out.println("\r");

                out.println("junk junk junk");

                out.flush();

                sock.close();

            } catch (Exception e) {

                e.printStackTrace();

            }

        }

    }

    HttpContinueStackOverflow(int port) throws Exception {

        /* create the server */

        Server s = new Server(port);

        Thread thr = new Thread(s);

        thr.start();

        /* wait for server to bind to port */

        try {

            Thread.currentThread().sleep(2000);

        } catch (Exception e) { }

        /* connect to server, connect to server and get response code */

        URL url = new URL("http", "localhost", port, "anything.html");

        HttpURLConnection conn = (HttpURLConnection)url.openConnection();

        int respCode = conn.getResponseCode();

        System.out.println("TEST PASSED");

    }

    public static void main(String args[]) throws Exception {

        int port = 4090;

        if (args.length > 0) {

            port = Integer.parseInt(args[0]);

        }

        System.out.println("Testing 100-Continue");

        new HttpContinueStackOverflow(port);

    }

}