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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * under the terms of the GNU General Public License version 2 only, as

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 *

 * 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.

 *

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 */

/*

 * @test

 * @bug 8199943

 * @summary Test for cookie handling when retrying after close

 * @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 ReferenceTracker

 * @run testng/othervm

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

 *       RetryWithCookie

 */

import com.sun.net.httpserver.HttpServer;

import com.sun.net.httpserver.HttpsConfigurator;

import com.sun.net.httpserver.HttpsServer;

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 javax.net.ssl.SSLContext;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.CookieManager;

import java.net.InetAddress;

import java.net.InetSocketAddress;

import java.net.URI;

import java.net.http.HttpClient;

import java.net.http.HttpClient.Redirect;

import java.net.http.HttpRequest;

import java.net.http.HttpResponse;

import java.net.http.HttpResponse.BodyHandlers;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.concurrent.ConcurrentHashMap;

import java.util.concurrent.atomic.AtomicLong;

import static java.lang.System.out;

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

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

import static org.testng.Assert.assertEquals;

import static org.testng.Assert.assertTrue;

public class RetryWithCookie 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 = "BasicRedirectTest message body";

    static final int ITERATIONS = 3;

    @DataProvider(name = "positive")

    public Object[][] positive() {

        return new Object[][] {

                { httpURI,    },

                { httpsURI,   },

                { http2URI,   },

                { https2URI,  },

        };

    }

    static final AtomicLong requestCounter = new AtomicLong();

    final ReferenceTracker TRACKER = ReferenceTracker.INSTANCE;

    @Test(dataProvider = "positive")

    void test(String uriString) throws Exception {

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

        CookieManager cookieManager = new CookieManager();

        HttpClient client = HttpClient.newBuilder()

                .proxy(NO_PROXY)

                .followRedirects(Redirect.ALWAYS)

                .cookieHandler(cookieManager)

                .sslContext(sslContext)

                .build();

        TRACKER.track(client);

        assert client.cookieHandler().isPresent();

        URI uri = URI.create(uriString);

        List<String> cookies = new ArrayList<>();

        cookies.add("CUSTOMER=ARTHUR_DENT");

        Map<String, List<String>> cookieHeaders = new HashMap<>();

        cookieHeaders.put("Set-Cookie", cookies);

        cookieManager.put(uri, cookieHeaders);

        HttpRequest request = HttpRequest.newBuilder(uri)

                .header("X-uuid", "uuid-" + requestCounter.incrementAndGet())

                .build();

        out.println("Initial request: " + request.uri());

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

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

            HttpResponse<String> response = client.send(request, BodyHandlers.ofString());

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

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

            assertEquals(response.statusCode(), 200);

            assertEquals(response.body(), MESSAGE);

            assertEquals(response.headers().allValues("X-Request-Cookie"), cookies);

            request = HttpRequest.newBuilder(uri)

                    .header("X-uuid", "uuid-" + requestCounter.incrementAndGet())

                    .build();

        }

    }

    // -- 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 CookieRetryHandler(), "/http1/cookie/");

        httpURI = "http://" + httpTestServer.serverAuthority() + "/http1/cookie/retry";

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

        httpsServer.setHttpsConfigurator(new HttpsConfigurator(sslContext));

        httpsTestServer = HttpTestServer.of(httpsServer);

        httpsTestServer.addHandler(new CookieRetryHandler(),"/https1/cookie/");

        httpsURI = "https://" + httpsTestServer.serverAuthority() + "/https1/cookie/retry";

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

        http2TestServer.addHandler(new CookieRetryHandler(), "/http2/cookie/");

        http2URI = "http://" + http2TestServer.serverAuthority() + "/http2/cookie/retry";

        https2TestServer = HttpTestServer.of(new Http2TestServer("localhost", true, 0));

        https2TestServer.addHandler(new CookieRetryHandler(), "/https2/cookie/");

        https2URI = "https://" + https2TestServer.serverAuthority() + "/https2/cookie/retry";

        httpTestServer.start();

        httpsTestServer.start();

        http2TestServer.start();

        https2TestServer.start();

    }

    @AfterTest

    public void teardown() throws Exception {

        Thread.sleep(100);

        AssertionError fail = TRACKER.check(500);

        try {

            httpTestServer.stop();

            httpsTestServer.stop();

            http2TestServer.stop();

            https2TestServer.stop();

        } finally {

            if (fail != null) throw fail;

        }

    }

    static class CookieRetryHandler implements HttpTestHandler {

        ConcurrentHashMap<String,String> closedRequests = new ConcurrentHashMap<>();

        @Override

        public void handle(HttpTestExchange t) throws IOException {

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

            List<String> uuids = t.getRequestHeaders().get("X-uuid");

            if (uuids == null || uuids.size() != 1) {

                readAllRequestData(t);

                try (OutputStream os = t.getResponseBody()) {

                    String msg = "Incorrect uuid header values:[" + uuids + "]";

                    (new RuntimeException(msg)).printStackTrace();

                    t.sendResponseHeaders(500, -1);

                    os.write(msg.getBytes(UTF_8));

                }

                return;

            }

            String uuid = uuids.get(0);

            // retrying

            if (closedRequests.putIfAbsent(uuid, t.getRequestURI().toString()) == null) {

                if (t.getExchangeVersion() == HttpClient.Version.HTTP_1_1) {

                    // Throwing an exception here only causes a retry

                    // with HTTP_1_1 - where it forces the server to close

                    // the connection.

                    // For HTTP/2 then throwing an IOE would cause the server

                    // to close the stream, and throwing anything else would

                    // cause it to close the connection, but neither would

                    // cause the client to retry.

                    // So we simply do not try to retry with HTTP/2 and just verify

                    // we have received the expected cookie

                    throw new IOException("Closing on first request");

                }

            }

            // not retrying

            readAllRequestData(t);

            try (OutputStream os = t.getResponseBody()) {

                List<String> cookie = t.getRequestHeaders().get("Cookie");

                if (cookie == null || cookie.size() == 0) {

                    String msg = "No cookie header present";

                    (new RuntimeException(msg)).printStackTrace();

                    t.sendResponseHeaders(500, -1);

                    os.write(msg.getBytes(UTF_8));

                } else if (!cookie.get(0).equals("CUSTOMER=ARTHUR_DENT")) {

                    String msg = "Incorrect cookie header value:[" + cookie.get(0) + "]";

                    (new RuntimeException(msg)).printStackTrace();

                    t.sendResponseHeaders(500, -1);

                    os.write(msg.getBytes(UTF_8));

                } else if (cookie.size() > 1) {

                    String msg = "Incorrect cookie header values:[" + cookie + "]";

                    (new RuntimeException(msg)).printStackTrace();

                    t.sendResponseHeaders(500, -1);

                    os.write(msg.getBytes(UTF_8));

                } else {

                    assert cookie.get(0).equals("CUSTOMER=ARTHUR_DENT");

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

                    for (String value : cookie) {

                        t.getResponseHeaders().addHeader("X-Request-Cookie", value);

                    }

                    t.sendResponseHeaders(200, bytes.length);

                    os.write(bytes);

                }

            }

            closedRequests.remove(uuid);

        }

    }

    static void readAllRequestData(HttpTestExchange t) throws IOException {

        try (InputStream is = t.getRequestBody()) {

            is.readAllBytes();

        }

    }

}