/*

 * Copyright (c) 2018, 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

 * @summary Exercise a streaming subscriber ( InputStream ) without holding a

 *          strong (or any ) reference to the client.

 * @modules java.base/sun.net.www.http

 *          java.net.http/jdk.internal.net.http.common

 *          java.net.http/jdk.internal.net.http.frame

 *          java.net.http/jdk.internal.net.http.hpack

 *          java.logging

 *          jdk.httpserver

 * @library /lib/testlibrary /test/lib http2/server

 * @build Http2TestServer

 * @build jdk.testlibrary.SimpleSSLContext

 * @run testng/othervm

 *       -Djdk.httpclient.HttpClient.log=trace,headers,requests

 *       StreamingBody

 */

import com.sun.net.httpserver.HttpServer;

import com.sun.net.httpserver.HttpsConfigurator;

import com.sun.net.httpserver.HttpsServer;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.InetAddress;

import java.net.InetSocketAddress;

import java.net.URI;

import java.net.http.HttpClient;

import java.net.http.HttpRequest;

import java.net.http.HttpResponse;

import java.net.http.HttpResponse.BodyHandlers;

import javax.net.ssl.SSLContext;

import jdk.testlibrary.SimpleSSLContext;

import org.testng.annotations.AfterTest;

import org.testng.annotations.BeforeTest;

import org.testng.annotations.DataProvider;

import org.testng.annotations.Test;

import static java.lang.System.out;

import static java.nio.charset.StandardCharsets.UTF_8;

import static java.net.http.HttpClient.Builder.NO_PROXY;

import static org.testng.Assert.assertEquals;

public class StreamingBody implements HttpServerAdapters {

    SSLContext sslContext;

    HttpTestServer httpTestServer;        // HTTP/1.1    [ 4 servers ]

    HttpTestServer httpsTestServer;       // HTTPS/1.1

    HttpTestServer http2TestServer;       // HTTP/2 ( h2c )

    HttpTestServer https2TestServer;      // HTTP/2 ( h2  )

    String httpURI;

    String httpsURI;

    String http2URI;

    String https2URI;

    static final String MESSAGE = "StreamingBody message body";

    static final int ITERATIONS = 100;

    @DataProvider(name = "positive")

    public Object[][] positive() {

        return new Object[][] {

                { httpURI,    },

                { httpsURI,   },

                { http2URI,   },

                { https2URI,  },

        };

    }

    @Test(dataProvider = "positive")

    void test(String uriString) throws Exception {

        out.printf("%n---- starting (%s) ----%n", uriString);

        URI uri = URI.create(uriString);

        HttpRequest request = HttpRequest.newBuilder(uri).build();

        for (int i=0; i< ITERATIONS; i++) {

            out.println("iteration: " + i);

            HttpResponse<InputStream> response = HttpClient.newBuilder()

                    .sslContext(sslContext)

                    .proxy(NO_PROXY)

                    .build()

                    .sendAsync(request, BodyHandlers.ofInputStream())

                    .join();

            String body = new String(response.body().readAllBytes(), UTF_8);

            out.println("Got response: " + response);

            out.println("Got body Path: " + body);

            assertEquals(response.statusCode(), 200);

            assertEquals(body, MESSAGE);

        }

    }

    // -- Infrastructure

    @BeforeTest

    public void setup() throws Exception {

        sslContext = new SimpleSSLContext().get();

        if (sslContext == null)

            throw new AssertionError("Unexpected null sslContext");

        InetSocketAddress sa = new InetSocketAddress(InetAddress.getLoopbackAddress(), 0);

        httpTestServer = HttpTestServer.of(HttpServer.create(sa, 0));

        httpTestServer.addHandler(new MessageHandler(), "/http1/streamingbody/");

        httpURI = "http://" + httpTestServer.serverAuthority() + "/http1/streamingbody/w";

        HttpsServer httpsServer = HttpsServer.create(sa, 0);

        httpsServer.setHttpsConfigurator(new HttpsConfigurator(sslContext));

        httpsTestServer = HttpTestServer.of(httpsServer);

        httpsTestServer.addHandler(new MessageHandler(),"/https1/streamingbody/");

        httpsURI = "https://" + httpsTestServer.serverAuthority() + "/https1/streamingbody/x";

        http2TestServer = HttpTestServer.of(new Http2TestServer("localhost", false, 0));

        http2TestServer.addHandler(new MessageHandler(), "/http2/streamingbody/");

        http2URI = "http://" + http2TestServer.serverAuthority() + "/http2/streamingbody/y";

        https2TestServer.addHandler(new MessageHandler(), "/https2/streamingbody/");

        https2URI = "https://" + https2TestServer.serverAuthority() + "/https2/streamingbody/z";

        httpTestServer.start();

        httpsTestServer.start();

        http2TestServer.start();

        https2TestServer.start();

    }

    @AfterTest

    public void teardown() throws Exception {

        httpTestServer.stop();

        httpsTestServer.stop();

        http2TestServer.stop();

        https2TestServer.stop();

    }

    static class MessageHandler implements HttpTestHandler {

        @Override

        public void handle(HttpTestExchange t) throws IOException {

            System.out.println("MessageHandler for: " + t.getRequestURI());

            try (InputStream is = t.getRequestBody();

                 OutputStream os = t.getResponseBody()) {

                is.readAllBytes();

                byte[] bytes = MESSAGE.getBytes(UTF_8);

                t.sendResponseHeaders(200, bytes.length);

                os.write(bytes);

            }

        }

    }

}