gistfile1.txt

//
//  ========================================================================
//  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.http2.client;

import java.net.InetSocketAddress;
import java.util.Random;
import java.util.concurrent.Phaser;
import java.util.concurrent.TimeUnit;

import org.eclipse.jetty.http.HttpFields;
import org.eclipse.jetty.http.HttpURI;
import org.eclipse.jetty.http.HttpVersion;
import org.eclipse.jetty.http.MetaData;
import org.eclipse.jetty.http2.api.Session;
import org.eclipse.jetty.http2.api.Stream;
import org.eclipse.jetty.http2.api.server.ServerSessionListener;
import org.eclipse.jetty.http2.frames.DataFrame;
import org.eclipse.jetty.http2.frames.HeadersFrame;
import org.eclipse.jetty.http2.frames.PushPromiseFrame;
import org.eclipse.jetty.http2.frames.ResetFrame;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.Callback;
import org.eclipse.jetty.util.FuturePromise;
import org.eclipse.jetty.util.Jetty;
import org.eclipse.jetty.util.Promise;
import org.eclipse.jetty.util.TypeUtil;
import org.eclipse.jetty.util.ssl.SslContextFactory;

public class Client
{
    public static void main(String[] args) throws Exception
    {
        HTTP2Client client = new HTTP2Client();
        SslContextFactory sslContextFactory = new SslContextFactory(true);
        client.addBean(sslContextFactory);
        client.start();

        Random random = new Random();
        String host = "api.facebook.com";
        int port = 443;

        FuturePromise<Session> sessionPromise = new FuturePromise<>();
        client.connect(sslContextFactory, new InetSocketAddress(host, port), new ServerSessionListener.Adapter(), sessionPromise);
        Session session = sessionPromise.get(5, TimeUnit.SECONDS);

        try
        {
            while (true)
            {
                System.err.println("==========================================");
                byte[] data = new byte[1+random.nextInt(512)];
                random.nextBytes(data);
                String r = TypeUtil.toHexString(data);
                HttpFields requestFields = new HttpFields();
                requestFields.put("notice", "This is not a DOS. Debugging a HTTP/2 difference with FB");
                requestFields.put("User-Agent", client.getClass().getName() + "/" + Jetty.VERSION);
                requestFields.put("random", r);

                MetaData.Request metaData = new MetaData.Request("GET", 
                    new HttpURI("https://" + host + ":" + port + "/restserver.php?random="+r), 
                    HttpVersion.HTTP_2, requestFields);
                HeadersFrame headersFrame = new HeadersFrame(metaData, null, true);
                final Phaser phaser = new Phaser(2);

                session.newStream(headersFrame, new Promise.Adapter<>(), new Stream.Listener.Adapter()
                {
                    @Override
                    public void onHeaders(Stream stream, HeadersFrame frame)
                    {
                        System.err.println(frame);
                        System.err.println(((MetaData.Response)frame.getMetaData()).getStatus());
                        System.err.println(frame.getMetaData().getFields());
                        if (frame.isEndStream())
                            phaser.arrive();
                    }

                    @Override
                    public void onData(Stream stream, DataFrame frame, Callback callback)
                    {
                        System.err.println(frame);
                        System.err.println(BufferUtil.toDetailString(frame.getData()));
                        callback.succeeded();
                        if (frame.isEndStream())
                            phaser.arrive();
                    }

                    @Override
                    public Stream.Listener onPush(Stream stream, PushPromiseFrame frame)
                    {
                        System.err.println(frame);
                        phaser.register();
                        return this;
                    }

                    @Override
                    public void onReset(Stream stream, ResetFrame frame)
                    {
                        System.err.println("onReset "+stream);
                        System.err.println(frame);
                        System.err.println(frame.getError());
                        super.onReset(stream,frame);
                    }

                    @Override
                    public void onTimeout(Stream stream, Throwable x)
                    {
                        System.err.println("onTimeout "+stream);
                        super.onTimeout(stream,x);
                    }

                    @Override
                    public boolean onIdleTimeout(Stream stream, Throwable x)
                    {
                        System.err.println("onIdleTimeout "+stream);
                        return super.onIdleTimeout(stream,x);
                    }
                });
                phaser.awaitAdvanceInterruptibly(phaser.arrive(), 5, TimeUnit.SECONDS);
            }

        }
        finally
        {
            client.stop();
        }
    }
}