/*

 * Copyright (c) 2017, 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 8164941

 * @modules java.net.http java.logging jdk.httpserver

 * @run main/othervm ZeroRedirects

 */

import com.sun.net.httpserver.HttpContext;

import com.sun.net.httpserver.HttpExchange;

import com.sun.net.httpserver.HttpHandler;

import com.sun.net.httpserver.HttpServer;

import java.io.IOException;

import java.io.OutputStream;

import java.net.URI;

import java.net.http.HttpResponse.BodyHandlers;

import java.util.concurrent.Executors;

import java.util.concurrent.ExecutorService;

import java.net.InetSocketAddress;

import java.net.http.HttpClient;

import java.net.http.HttpRequest;

import java.net.http.HttpResponse;

public class ZeroRedirects {

    static HttpServer s1 ;

    static ExecutorService executor;

    static int port;

    static HttpClient client;

    static URI uri;

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

        initServer();

        client = HttpClient.newBuilder()

                           .executor(executor)

                           .followRedirects(HttpClient.Redirect.ALWAYS)

                           .build();

        try {

            test();

        } finally {

            s1.stop(0);

            executor.shutdownNow();

        }

    }

    public static void test() throws Exception {

        System.setProperty("java.net.http.redirects.retrylimit", "0");

        HttpRequest r = HttpRequest.newBuilder(uri)

                .GET()

                .build();

        HttpResponse<Void> resp = client.send(r, BodyHandlers.discarding());

        System.out.printf("Client: response is %d\n", resp.statusCode());

        if (resp.statusCode() != 200)

            throw new RuntimeException();

    }

    static void initServer() throws Exception {

        HttpHandler h = new Handler();

        HttpContext c1 = s1.createContext("/", h);

        executor = Executors.newCachedThreadPool();

        s1.setExecutor(executor);

        s1.start();

        port = s1.getAddress().getPort();

        System.out.println("HTTP server port = " + port);

    }

    static class Handler implements HttpHandler {

        @Override

        public synchronized void handle(HttpExchange t) throws IOException {

            String reply = "Hello world";

            int len = reply.length();

            System.out.printf("Sending response 200\n");

            t.sendResponseHeaders(200, len);

            OutputStream o = t.getResponseBody();

            o.write(reply.getBytes());

            t.close();

        }

    }

}