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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
 * @test
 * @summary Checks HTTP Versions
 * @bug 8765432
 * @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
 * @library /test/lib http2/server
 * @build Http2TestServer
 * @build jdk.test.lib.net.SimpleSSLContext
 * @build jdk.test.lib.Platform
 * @run testng/othervm HttpVersionsTest
 */

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpRequest.BodyPublishers;
import java.net.http.HttpResponse;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import javax.net.ssl.SSLContext;
import jdk.test.lib.net.SimpleSSLContext;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import static java.lang.System.out;
import static java.net.http.HttpClient.Version.HTTP_1_1;
import static java.net.http.HttpClient.Version.HTTP_2;
import static java.net.http.HttpResponse.BodyHandlers.ofString;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;

public class HttpVersionsTest {

    SSLContext sslContext;
    Http2TestServer http2TestServer;
    Http2TestServer https2TestServer;
    String http2URI;
    String https2URI;

    @Test
    void testHttp2() throws Exception {
        HttpClient client = HttpClient.newBuilder()
                .version(HTTP_2)
                .build();
        HttpRequest request = HttpRequest.newBuilder(URI.create(http2URI))
                .POST(BodyPublishers.ofString("I'd like another drink I think"))
                .build();
        HttpResponse<String> response = client.send(request, ofString());
        out.println("Got response: " + response);
        out.println("Got body: " + response.body());

        assertEquals(response.statusCode(), 200);
        assertEquals(response.version(), HTTP_2);
        assertEquals(response.body(), "I'd like another drink I think");
    }

    @Test
    void testHttp1dot1() throws Exception {
        HttpClient client = HttpClient.newBuilder()
                .version(HTTP_1_1)
                .build();
        HttpRequest request = HttpRequest.newBuilder(URI.create(http2URI))
                .POST(BodyPublishers.ofString("Another drink to make me pink"))
                .build();
        HttpResponse<String> response = client.send(request, ofString());
        out.println("Got response: " + response);
        out.println("Got body: " + response.body());

        assertEquals(response.statusCode(), 200);
        assertEquals(response.version(), HTTP_1_1);
        assertEquals(response.body(), "");
        assertEquals(response.headers().firstValue("X-Magic").get(),
                     "HTTP/1.1 request received by HTTP/2 server");
        assertEquals(response.headers().firstValue("X-Received-Body").get(),
                     "Another drink to make me pink");
    }

    @Test
    void testHttps2() throws Exception {
        HttpClient client = HttpClient.newBuilder()
                .version(HTTP_2)
                .sslContext(sslContext)
                .build();
        HttpRequest request = HttpRequest.newBuilder(URI.create(https2URI))
                .POST(BodyPublishers.ofString("I think I'll drink until I stink"))
                .build();
        HttpResponse<String> response = client.send(request, ofString());
        out.println("Got response: " + response);
        out.println("Got body: " + response.body());

        assertEquals(response.statusCode(), 200);
        assertEquals(response.version(), HTTP_2);
        assertTrue(response.sslSession().isPresent());
        assertEquals(response.body(), "I think I'll drink until I stink");
    }

    @Test
    void testHttps1dot1() throws Exception {
        HttpClient client = HttpClient.newBuilder()
                .version(HTTP_1_1)
                .sslContext(sslContext)
                .build();
        HttpRequest request = HttpRequest.newBuilder(URI.create(https2URI))
                .POST(BodyPublishers.ofString("I'll drink until I cannot blink"))
                .build();
        HttpResponse<String> response = client.send(request, ofString());
        out.println("Got response: " + response);
        out.println("Got body: " + response.body());

        assertEquals(response.statusCode(), 200);
        assertEquals(response.version(), HTTP_1_1);
        assertTrue(response.sslSession().isPresent());
        assertEquals(response.body(), "");
        assertEquals(response.headers().firstValue("X-Magic").get(),
                     "HTTP/1.1 request received by HTTP/2 server");
        assertEquals(response.headers().firstValue("X-Received-Body").get(),
                     "I'll drink until I cannot blink");
    }

    // -- Infrastructure

    static final ExecutorService executor = Executors.newCachedThreadPool();

    @BeforeTest
    public void setup() throws Exception {
        sslContext = new SimpleSSLContext().get();
        if (sslContext == null)
            throw new AssertionError("Unexpected null sslContext");

        http2TestServer =  new Http2TestServer("localhost", false, 0, executor, 50, null, null, true);
        http2TestServer.addHandler(new Http2VerTestHandler(), "/http2/vts");
        http2URI = "http://" + http2TestServer.serverAuthority() + "/http2/vts";

        https2TestServer =  new Http2TestServer("localhost", true, 0, executor, 50, null, sslContext, true);
        https2TestServer.addHandler(new Http2VerTestHandler(), "/https2/vts");
        https2URI = "https://" + https2TestServer.serverAuthority() + "/https2/vts";

        http2TestServer.start();
        https2TestServer.start();
    }

    @AfterTest
    public void teardown() throws Exception {
        http2TestServer.stop();
        https2TestServer.stop();
        executor.shutdown();
    }

    static class Http2VerTestHandler implements Http2Handler {
        @Override
        public void handle(Http2TestExchange t) throws IOException {
            try (InputStream is = t.getRequestBody();
                 OutputStream os = t.getResponseBody()) {
                byte[] bytes = is.readAllBytes();
                t.sendResponseHeaders(200, bytes.length);
                os.write(bytes);
            }
        }
    }
}