/*

 * Copyright (c) 2005, 2019, 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 6270015

 * @summary  Light weight HTTP server

 * @run main/othervm -Dsun.net.httpserver.idleInterval=4 Test4

 * @run main/othervm -Djava.net.preferIPv6Addresses=true

 *                   -Dsun.net.httpserver.idleInterval=4 Test4

 */

import com.sun.net.httpserver.*;

import java.util.*;

import java.util.concurrent.*;

import java.util.regex.*;

import java.io.*;

import java.net.*;

import java.security.*;

import javax.net.ssl.*;

/**

 * Test pipe-lining (block after read)

 */

public class Test4 extends Test {

    static int count = 1;

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

        System.out.print ("Test4: ");

        Handler handler = new Handler();

        InetAddress loopback = InetAddress.getLoopbackAddress();

        InetSocketAddress addr = new InetSocketAddress(loopback, 0);

        HttpServer server = HttpServer.create (addr, 0);

        int port = server.getAddress().getPort();

        HttpContext c2 = server.createContext ("/test", handler);

        c2.getAttributes().put ("name", "This is the http handler");

        ExecutorService exec = Executors.newCachedThreadPool();

        server.setExecutor (exec);

        try {

            server.start ();

            doClient(port);

            System.out.println ("OK");

        } finally {

            delay();

            if (server != null)

                server.stop(2);

            if (exec != null)

                exec.shutdown();

        }

    }

    static class Handler implements HttpHandler {

        volatile int invocation = 0;

        public void handle (HttpExchange t)

            throws IOException

        {

            InputStream is = t.getRequestBody();

            Headers map = t.getRequestHeaders();

            Headers rmap = t.getResponseHeaders();

            int x = invocation ++;

            rmap.set ("XTest", Integer.toString (x));

            switch (x) {

            case 0:

                checkBody (is, body1);

                try {Thread.sleep (2000); } catch (Exception e) {}

                break;

            case 1:

                checkBody (is, body2);

                try {Thread.sleep (1000); } catch (Exception e) {}

                break;

            case 2:

                checkBody (is, body3);

                break;

            case 3:

                checkBody (is, body4);

                break;

            }

            t.sendResponseHeaders (200, -1);

            t.close();

        }

    }

    static void checkBody (InputStream is, String cmp) throws IOException {

        byte [] b = new byte [1024];

        int count = 0, c;

        while ((c=is.read(b, count, b.length-count)) != -1) {

            count+=c;

        }

        is.close();

        String s = new String (b, 0, count, "ISO8859_1");

        if (!s.equals (cmp)) {

            throw new RuntimeException ("strings not equal");

        }

    }

    static String body1 = "1234567890abcdefghij";

    static String body2 = "2234567890abcdefghij0123456789";

    static String body3 = "3wertyuiop";

    static String body4 = "4234567890";

    static String result =

        "HTTP/1.1 200 OK.*Xtest: 0.*"+

        "HTTP/1.1 200 OK.*Xtest: 1.*"+

        "HTTP/1.1 200 OK.*Xtest: 2.*"+

        "HTTP/1.1 200 OK.*Xtest: 3.*";

    public static void doClient (int port) throws Exception {

        String s = "GET /test/1.html HTTP/1.1\r\nContent-length: 20\r\n"+

        "\r\n" +body1 +

        "GET /test/2.html HTTP/1.1\r\nContent-length: 30\r\n"+

        "\r\n"+ body2 +

        "GET /test/3.html HTTP/1.1\r\nContent-length: 10\r\n"+

        "\r\n"+ body3 +

        "GET /test/4.html HTTP/1.1\r\nContent-length: 10\r\n"+

        "\r\n"+body4;

        Socket socket = new Socket (InetAddress.getLoopbackAddress(), port);

        OutputStream os = socket.getOutputStream();

        os.write (s.getBytes());

        InputStream is = socket.getInputStream();

        int c, count=0;

        byte[] b = new byte [1024];

        while ((c=is.read(b, count, b.length-count)) != -1) {

            count +=c;

        }

        is.close();

        socket.close();

        s = new String (b,0,count, "ISO8859_1");

        if (!compare (s, result)) {

            throw new RuntimeException ("wrong string result");

        }

    }

    static boolean compare (String s, String result) {

        Pattern pattern = Pattern.compile (result,

                Pattern.DOTALL|Pattern.CASE_INSENSITIVE

        );

        Matcher matcher = pattern.matcher (s);

        return matcher.matches();

    }

}