/*

 * Copyright (c) 2015, 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 8156514

 * @key intermittent

 * @library /lib/testlibrary server

 * @build jdk.testlibrary.SimpleSSLContext

 * @modules jdk.incubator.httpclient/jdk.incubator.http.internal.common

 * @modules jdk.incubator.httpclient/jdk.incubator.http.internal.frame

 * @modules jdk.incubator.httpclient/jdk.incubator.http.internal.hpack

 * @run testng/othervm -Djdk.httpclient.HttpClient.log=frames,ssl,requests,responses,errors RedirectTest

 */

import java.net.*;

import jdk.incubator.http.*;

import static jdk.incubator.http.HttpClient.Version.HTTP_2;

import java.nio.file.*;

import java.util.concurrent.*;

import java.util.function.*;

import java.util.Arrays;

import java.util.Iterator;

import static jdk.incubator.http.HttpRequest.BodyProcessor.fromString;

import static jdk.incubator.http.HttpResponse.BodyHandler.asString;

import org.testng.annotations.Test;

@Test

public class RedirectTest {

    static int httpPort, altPort;

    static Http2TestServer httpServer, altServer;

    static HttpClient client;

    static ExecutorService exec;

    static String httpURIString, altURIString1, altURIString2;

    static Supplier<String> sup(String... args) {

        Iterator<String> i = Arrays.asList(args).iterator();

        // need to know when to stop calling it.

        return () -> i.next();

    }

    static void initialize() throws Exception {

        try {

            client = getClient();

            httpServer = new Http2TestServer(false, 0, exec, null);

            httpPort = httpServer.getAddress().getPort();

            altServer = new Http2TestServer(false, 0, exec, null);

            altPort = altServer.getAddress().getPort();

            // urls are accessed in sequence below

            // first two on different servers. Third on same server

            // as second. So, the client should use the same http connection

            httpURIString = "http://127.0.0.1:" + httpPort + "/foo/";

            altURIString1 = "http://127.0.0.1:" + altPort + "/redir";

            altURIString2 = "http://127.0.0.1:" + altPort + "/redir/again";

            httpServer.addHandler(new RedirectHandler(sup(altURIString1)), "/foo");

            altServer.addHandler(new RedirectHandler(sup(altURIString2)), "/redir");

            altServer.addHandler(new Http2EchoHandler(), "/redir/again");

            httpServer.start();

            altServer.start();

        } catch (Throwable e) {

            System.err.println("Throwing now");

            e.printStackTrace();

            throw e;

        }

    }

    @Test(timeOut=3000000)

    public static void test() throws Exception {

        try {

            initialize();

            simpleTest();

        } catch (Throwable tt) {

            System.err.println("tt caught");

            tt.printStackTrace();

        } finally {

            httpServer.stop();

            altServer.stop();

            exec.shutdownNow();

        }

    }

    static HttpClient getClient() {

        if (client == null) {

            exec = Executors.newCachedThreadPool();

            client = HttpClient.newBuilder()

                               .executor(exec)

                               .followRedirects(HttpClient.Redirect.ALWAYS)

                               .version(HTTP_2)

                               .build();

        }

        return client;

    }

    static URI getURI() {

        return URI.create(httpURIString);

    }

    static void checkStatus(int expected, int found) throws Exception {

        if (expected != found) {

            System.err.printf ("Test failed: wrong status code %d/%d\n",

                expected, found);

            throw new RuntimeException("Test failed");

        }

    }

    static void checkStrings(String expected, String found) throws Exception {

        if (!expected.equals(found)) {

            System.err.printf ("Test failed: wrong string %s/%s\n",

                expected, found);

            throw new RuntimeException("Test failed");

        }

    }

    static Void compareFiles(Path path1, Path path2) {

        return TestUtil.compareFiles(path1, path2);

    }

    static Path tempFile() {

        return TestUtil.tempFile();

    }

    static final String SIMPLE_STRING = "Hello world Goodbye world";

    static final int FILESIZE = 64 * 1024 + 200;

    static void simpleTest() throws Exception {

        URI uri = getURI();

        System.err.println("Request to " + uri);

        HttpClient client = getClient();

        HttpRequest req = HttpRequest.newBuilder(uri)

                                     .POST(fromString(SIMPLE_STRING))

                                     .build();

        CompletableFuture<HttpResponse<String>> cf = client.sendAsync(req, asString());

        HttpResponse<String> response = cf.join();

        checkStatus(200, response.statusCode());

        String responseBody = response.body();

        checkStrings(SIMPLE_STRING, responseBody);

        System.err.println("DONE");

        Thread.sleep (6000);

    }

}